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Sample records for agreement mta confidential

  1. 48 CFR 1552.227-76 - Project employee confidentiality agreement.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Project employee confidentiality agreement. 1552.227-76 Section 1552.227-76 Federal Acquisition Regulations System ENVIRONMENTAL... electrical services, provisions which shall conform substantially to the language of this clause,...

  2. 30 CFR 47.85 - Confidentiality agreement and remedies.

    Science.gov (United States)

    2010-07-01

    ... Section 47.85 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR EDUCATION AND TRAINING HAZARD COMMUNICATION (HazCom) Trade Secret Hazardous Chemical § 47.85 Confidentiality agreement... trade secret chemical identity to the health purposes indicated in the written statement of need;...

  3. Novel nanohybrid MTA compositions

    DEFF Research Database (Denmark)

    Lovschall, Henrik; Ranjkesh, Bahram

    capping. and that it is a highly biocompatible material. MTA has as drawbacks high costs, potential discoloration, and 3h setting time (1). Novel technology developed at Aarhus University is basis for novel nano-hybrid MTA (called iMTA) with fast setting time and fluoride release. iMTA contain a slightly...... modified calcia-silica-alumina-sulphate composition with soluble fluorides, radiocontrast material, and nanosilicate. iMTA thereby demonstrate a remarkably high compressive strength in comparison to several commonly used dental cements. Reduction of iMTA setting time to 2-10 min with either flowable...

  4. MTA avalikustas tasutud maksude koondsumma

    Index Scriptorium Estoniae

    2014-01-01

    Lisatud Lasse Lehise kommentaar MTA avalikustatud tasutud maksude koondsummadele ning seaduseelnõule, mille kohaselt hakatakse tulevikus üks kord kvartalis avaldama kõikide maksumaksjate makstud maksude kogusummat

  5. MTA Computer Based Evaluation System.

    Science.gov (United States)

    Brenner, Lisa P.; And Others

    The MTA PLATO-based evaluation system, which has been implemented by a consortium of schools of medical technology, is designed to be general-purpose, modular, data-driven, and interactive, and to accommodate other national and local item banks. The system provides a comprehensive interactive item-banking system in conjunction with online student…

  6. Comparison of MTA Fillapex radiopacity with five root canal sealers

    Directory of Open Access Journals (Sweden)

    Ana Paula Meirelles Vidotto

    2011-10-01

    Full Text Available Introduction: The endodontic sealer is a filling material whose physicochemical properties are mandatory for the achievement of endodontic therapy final goal. An ideal endodontic sealer should have some properties, including radiopacity. Objective: This study compared MTA Fillapex™ radiopacity with the radiopacity of five others endodontic sealers: Endométhasone-N™, AH Plus™, Acroseal™, Epiphany SE™ and RoekoSeal™. Material and methods: Five cylindrical samples of each sealer were used, constructed with the said of a matrix. On an occlusal film, a sample of each sealer was placed along with an aluminum stepwedge and five radiographic shots were taken. The radiographic images were digitized and each sample’s gray scales were compared with each shade of the aluminum stepwedge, by using software. Results: The results, in decreasing order of radiopacity, were: AH Plus™ was statistically the most radiopaque sealer (9.4 mm Al, followed by Epiphany SE™ (7.8 mm Al, MTA Fillapex™ (6.5 mm Al, RoekoSeal™ (5.8 mm Al, Endométhasone-N™ (4.5 mm Al, and Acroseal™, the least statistically radiopaque (3.5 mm Al. Conclusion: It can be concluded that MTA Fillapex™ was the third most radiopaque sealer among all tested sealers. Also, MTA Fillapex™ has the radiopacity degree in agreement with ADA specification No. 57 (1983.

  7. Livin' with the MTA

    Science.gov (United States)

    Mirowski, Philip

    2008-01-01

    Although the push to get universities to accumulate IP by commercializing their scientific research was a conscious movement, dealing with the blowback in the form of contracts over the transfer of research tools and inputs, called materials transfer agreements (MTAs), was greeted by universities as an afterthought. Faculty often regarded them as…

  8. Agreement between the Board of Trustees of the University of Massachusetts on Behalf of the Board of Regents of Higher Education and the Massachusetts Society of Professors Faculty Staff Union/MTA/NEA.

    Science.gov (United States)

    National Education Association, Washington, DC.

    The collective bargaining agreement between the Board of Trustees of the University of Massachusetts and the Board of Regents of Higher Education and the Massachusetts Society of Professors, an affiliate of the National Education Association, covering the period July 1, 1986-June 30, 1987, is presented. Items covered in the agreement include: unit…

  9. Collective Bargaining Agreement between Board of Trustees of the University of Massachusetts and the Massachusetts Society of Professors, Faculty Staff Union, MTA/NEA, July 1, 1983-June 30, 1986.

    Science.gov (United States)

    National Education Association, Washington, DC.

    The collective bargaining agreement between the Board of Trustees of the University of Massachusetts and the Massachusetts Society of Professors, Faculty Staff Union (1,643 members) of the National Education Association, covering the period July 1, 1983-June 30, 1986 is presented. Items covered in the agreement include: unit recognition,…

  10. 7 CFR 900.309 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 900.309 Section 900.309... to Agricultural Marketing Agreement Act of 1937, as Amended § 900.309 Confidential information. The... information furnished to, compiled by, or in the possession of the referendum agent, shall be regarded...

  11. 7 CFR 900.407 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 900.407 Section 900.407... to the Agricultural Marketing Agreement Act of 1937, as Amended § 900.407 Confidential information... voted or the manner in which any person voted) and all information furnished to, compiled by, or...

  12. Observation of 186mTa

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Unreported tantalum isomer 18mTa has been produced through the reaction 186W(n,p) by irradiation of natW with 14 MeV neutrons. The activity of 186Ta and 186Ta was measured using HPGe detectors and several X-γ as well as γ-γ coincidence arrangements. The 186mTa has been identified by means of measuring known γ rays from 186Ta p-decay. The half-life of 186mTa has been determined to be (1.5±0.1) min.

  13. MTA versus Portland cement: review of literature

    OpenAIRE

    Naiana Viana Viola; Mário Tanomaru Filho; Paulo Sérgio Cerri

    2011-01-01

    Introduction: Both Mineral Trioxide Aggregate (MTA) and Portland cement (PC) have been highlighted because of their favorable biological properties, with extensive applications in Endodontics, including the possibility of using into root canal filling. Objective: This article reviews literature related to MTA and PC comparing their physical, chemical and biological properties, as well as their indications. Literature review: Literature reports studies revealing the similarities between these ...

  14. Characterization of a new sealer MTA/HAp; Caracterizacao de um novo cimento endodontico MTA/HAp

    Energy Technology Data Exchange (ETDEWEB)

    Barros, C.M.B.; Oliveira, S.V.; Costa, A.C.F.M. [Universidade Federal de Campina Grande (UFCG), PB (Brazil); Dantas, D.C.R.E.; Fontes, L.B.C. [Universidade Estadual da Paraiba (UEPB), PB (Brazil); Viana, K.M.S., E-mail: kalineviana@ect.ufrn.br [Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil)

    2012-07-01

    Filling materials (cement-based calcium hydroxide, amalgam, glass ionomer and IRM) are often used as sealers. However, none of them meets the desirable characteristics of a suitable sealing material. This study aims to characterize the new sealer, MTA/HAp from the incorporation of 5% by weight of synthetic hydroxyapatite to the MTA and to investigate the influence of the addition of HAp on the characteristic structural, chemical and consistency of the MTA. For this, we used MTA Angelus ® and HAp synthesized in the laboratory. We used the ratio by mass 95%MTA/5%HAp, where the hydroxyapatite added the characteristic of the MTA osteoconduction. The tests were performed: XRD, XRF and consistency. The results showed that both the new cement had the same crystalline phases as the same chemical composition of its precursors, yet having suitable consistency (plastic mass) of a sealer as well as the pure MTA. (author)

  15. Confidentiality and personal integrity.

    Science.gov (United States)

    Edgar, A

    1994-06-01

    This paper uses the social theory of Erving Goffman in order to argue that confidentiality should be understood in relation to the mundane social skills by which individuals present and respect specific self-images of themselves and others during social interaction. The breaching of confidentiality is analysed in terms of one person's capacity to embarrass another, and so to expose that person as incompetent. Respecting confidentiality may at once serve to protect the vulnerable from an unjust society, and yet also protect the guilty from just accusation. Ethical reasoning about confidentiality must therefore recognize the dangers of prejudice and violence inherent in decisions to breach or to respect confidentiality. Case studies are used to illustrate the efficacy of this account, culminating with analyses of three examples from the UKCC document Confidentiality.

  16. On the Drafting of Confidentiality Agreements

    DEFF Research Database (Denmark)

    Drewsen, Merete; Lando, Henrik; Cummins, Tim

    2006-01-01

    This is not a theoretical paper but an application of existing law and economic contract theory to the issue of how to draft a specific kind of contract. It is addressed to practitioners and is intended for practical use. It will be part of a Wiki (as in Wikipedia) for contract drafting, which...

  17. Working with the NCL - Material Transfer Agreement - Nanotechnology Characterization Laboratory

    Science.gov (United States)

    To share and safeguard Research Material, intellectual property and proprietary information, the NCL's interaction with extramural researchers and vendors will normally be conducted under a Material Transfer Agreement (MTA).

  18. North Adams State College Institutional Self-Evaluation Study Report, Vol. 2. Appendix 1: Agreement Between the Board of Trustees of State Colleges and North Adams State College Association, Massachusetts; Appendix 2: Agreement Between The Board of Trustees of State Colleges and the North Adams State College Mark Hopkins Faculty Association-MTA/NEA.

    Science.gov (United States)

    Massachusetts State Coll. System, Boston.

    The two agreements included in this document are in effect until June 30, 1976 and June 30, 1977, respectively. Articles cover: recognition and definitions, relationship between the board and the association, use of college facilities, faculty fringe benefits, statement on academic freedom, responsibilities of department chairmen, participation in…

  19. MTA3 regulates CGB5 and Snail genes in trophoblast

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Ying [Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, Grand Rapids, MI 49503 (United States); Miyazaki, Jun [Department of Obstetrics and Gynecology, Fujita Health University School of Medicine, Fujita Health University, Toyoake (Japan); Division of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake (Japan); Nishizawa, Haruki [Department of Obstetrics and Gynecology, Fujita Health University School of Medicine, Fujita Health University, Toyoake (Japan); Kurahashi, Hiroki [Division of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake (Japan); Leach, Richard, E-mail: Richard.Leach@hc.msu.edu [Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, Grand Rapids, MI 49503 (United States); Department of Obstetrics, Gynecology and Women’s Health, Spectrum Health Medical Group, Grand Rapids, MI 49503 (United States); Wang, Kai, E-mail: Kai.Wang@hc.msu.edu [Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, Grand Rapids, MI 49503 (United States)

    2013-04-19

    Highlights: •Impaired MTA3, raised CGB5 and Snail expression are associated with preeclampsia. •Knock-down of MTA3 causes up-regulation of CGB5 and Snail genes in BeWo cells. •MTA3 occupies CGB5 and Snail gene promoters in BeWo cells. -- Abstract: Secreted by the placental trophoblast, human chorionic gonadotropin (hCG) is an important hormone during pregnancy and is required for the maintenance of pregnancy. Previous studies have shown that dys-regulation of hCG expression is associated with preeclampsia. However, the exact relationship between altered hCG levels and development of preeclampsia is unknown. Metastasis associated protein 3 (MTA3), a chromatin remodeling protein, is abundantly expressed in the placental trophoblasts, but its function is unknown. In breast cancer, MTA3 has been shown to repress the expression of Snail and cell migration. However, whether MTA3 acts similarly in the trophoblast has not been investigated. In the present study, we examined the role of MTA3 in regulating the hCG β-subunit gene (gene name: CGB5) and Snail expression in the trophoblast cell line, BeWo, as well as its relevance to the high hCG expression levels seen in preeclampsia. First, we investigated MTA3 expression in preeclamptic placenta as compared to normal control placenta via gene expression microarray and qRT-PCR and found that MTA3 was significantly down-regulated, whereas both CGB5 and Snail were up-regulated in preeclamptic placenta. Secondly, we knocked down MTA3 gene in trophoblast cell line BeWo and found Snail and hCG were both up-regulated, suggesting that MTA3 represses Snail and hCG gene expression in trophoblasts. Next, we cloned the CGB5 and Snail promoters into the pGL3-basic vector individually and found that silencing of MTA3 by siRNA resulted in an increase of both CGB5 and Snail promoter activities. To confirm that this MTA3 inhibition is a direct effect, we performed a chromatin immune-precipitation (ChIP) assay and found that MTA3

  20. MTA3 regulates CGB5 and Snail genes in trophoblast

    International Nuclear Information System (INIS)

    Highlights: •Impaired MTA3, raised CGB5 and Snail expression are associated with preeclampsia. •Knock-down of MTA3 causes up-regulation of CGB5 and Snail genes in BeWo cells. •MTA3 occupies CGB5 and Snail gene promoters in BeWo cells. -- Abstract: Secreted by the placental trophoblast, human chorionic gonadotropin (hCG) is an important hormone during pregnancy and is required for the maintenance of pregnancy. Previous studies have shown that dys-regulation of hCG expression is associated with preeclampsia. However, the exact relationship between altered hCG levels and development of preeclampsia is unknown. Metastasis associated protein 3 (MTA3), a chromatin remodeling protein, is abundantly expressed in the placental trophoblasts, but its function is unknown. In breast cancer, MTA3 has been shown to repress the expression of Snail and cell migration. However, whether MTA3 acts similarly in the trophoblast has not been investigated. In the present study, we examined the role of MTA3 in regulating the hCG β-subunit gene (gene name: CGB5) and Snail expression in the trophoblast cell line, BeWo, as well as its relevance to the high hCG expression levels seen in preeclampsia. First, we investigated MTA3 expression in preeclamptic placenta as compared to normal control placenta via gene expression microarray and qRT-PCR and found that MTA3 was significantly down-regulated, whereas both CGB5 and Snail were up-regulated in preeclamptic placenta. Secondly, we knocked down MTA3 gene in trophoblast cell line BeWo and found Snail and hCG were both up-regulated, suggesting that MTA3 represses Snail and hCG gene expression in trophoblasts. Next, we cloned the CGB5 and Snail promoters into the pGL3-basic vector individually and found that silencing of MTA3 by siRNA resulted in an increase of both CGB5 and Snail promoter activities. To confirm that this MTA3 inhibition is a direct effect, we performed a chromatin immune-precipitation (ChIP) assay and found that MTA3

  1. 7 CFR 1215.62 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1215.62 Section 1215.62 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE POPCORN PROMOTION, RESEARCH,...

  2. 7 CFR 1260.203 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1260.203 Section 1260.203 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE BEEF PROMOTION AND RESEARCH...

  3. 7 CFR 1216.62 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1216.62 Section 1216.62 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE PEANUT PROMOTION, RESEARCH,...

  4. 7 CFR 1280.227 - Confidentiality.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidentiality. 1280.227 Section 1280.227 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE LAMB PROMOTION, RESEARCH,...

  5. 7 CFR 1230.82 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1230.82 Section 1230.82 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE PORK PROMOTION, RESEARCH,...

  6. 7 CFR 1206.62 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1206.62 Section 1206.62 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE MANGO PROMOTION, RESEARCH,...

  7. 7 CFR 1212.72 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1212.72 Section 1212.72 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE HONEY PACKERS AND...

  8. 7 CFR 1209.62 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1209.62 Section 1209.62 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE MUSHROOM PROMOTION,...

  9. 7 CFR 1205.340 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1205.340 Section 1205.340 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE COTTON RESEARCH AND...

  10. 7 CFR 1220.243 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1220.243 Section 1220.243 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SOYBEAN PROMOTION, RESEARCH,...

  11. 7 CFR 1250.354 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1250.354 Section 1250.354 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE EGG RESEARCH AND PROMOTION...

  12. 7 CFR 1207.352 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1207.352 Section 1207.352 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE POTATO RESEARCH AND...

  13. 7 CFR 1160.403 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 9 2010-01-01 2009-01-01 true Confidential treatment. 1160.403 Section 1160.403 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing Agreements and Orders; Milk), DEPARTMENT OF AGRICULTURE FLUID MILK PROMOTION PROGRAM Fluid Milk...

  14. 7 CFR 1210.352 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1210.352 Section 1210.352 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE WATERMELON RESEARCH...

  15. 7 CFR 1150.173 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 9 2010-01-01 2009-01-01 true Confidential treatment. 1150.173 Section 1150.173 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing Agreements and Orders; Milk), DEPARTMENT OF AGRICULTURE DAIRY PROMOTION PROGRAM Dairy Promotion and...

  16. 7 CFR 1218.62 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1218.62 Section 1218.62 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE BLUEBERRY PROMOTION,...

  17. 7 CFR 1221.127 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1221.127 Section 1221.127 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SORGHUM PROMOTION, RESEARCH,...

  18. 7 CFR 1219.108 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential information. 1219.108 Section 1219.108 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE HASS AVOCADO PROMOTION,...

  19. Evaluation of bacterial leakage of four root- end filling materials: Gray Pro Root MTA, White Pro Root MTA, Root MTA and Portland Cement (type I

    Directory of Open Access Journals (Sweden)

    Zarabian M.

    2005-07-01

    Full Text Available Background and Aim: Today several materials have been used for root- end filling in endodontic surgery. Optimal properties of Pro Root MTA in in-vitro and in-vivo studies has been proven. On the other hand, based on some studies, Root MTA (Iranian Pro Root MTA and Portland cement are similar to Pro Root MTA in physical and biologic properties. The aim of this study was to evaluate bacterial leakage (amount and mean leakage time of four root- end filling materials. Materials and Methods: In this experimental in-vitro study, seventy six extracted single- rooted human teeth were randomly divided into six groups for root-end filling with gray Pro Root MTA, white Pro Root MTA, Root MTA (Iranian Pro Root MTA, Portland Cement (type I and positive and negative control groups. Root canals were instrumented using the step- back technique. Root- end filling materials were placed in 3mm ultra sonic retro preparations. Samples and microleakage model system were sterilized in autoclave. The apical 3-4 mm of the roots were immersed in phenol red with 3% lactose broth culture medium. The coronal access of each specimen was inoculated every 24h with a suspension of Streptococcus sanguis (ATCC 10556. Culture media were observed every 24h for colour change indicating bacterial contamination for 60 days. Statistical analysis was performed using log- rank test with P<0.05 as the limit of significance. Results: At the end of study 50%, 56.25%, 56.25% and 50% of specimens filled with Gray Pro Root MTA, White Pro Root MTA. Root MTA and Portland Cement (type I had evidence of leakage respectively. The mean leakage time was 37.19±6.29, 36.44±5.81, 37.69±5.97 and 34.81±6.67 days respectively. Statistical analysis of data showed no significant difference among the leakage (amount and mean leakage time of the four tested root- end filling materials (P=0.9958. Conclusion: Based on the results of this study, there were no significant differences in leakage among the four

  20. 3-Year Follow-up of the NIMH MTA Study

    Science.gov (United States)

    Jensen, Peter S.; Arnold, L. Eugene; Swanson, James M.; Vitiello, Benedetto; Abikoff, Howard B.; Greenhill, Laurence L.; Hechtman, Lily; Hinshaw, Stephen P.; Pelham, William E.; Wells, Karen C.; Conners, C. Keith; Elliott, Glen R.; Epstein, Jeffery N.; Hoza, Betsy; March, John S.; Molina, Brooke S. G.; Newcorn, Jeffrey H.; Severe, Joanne B.; Wigal, Timothy; Gibbons, Robert D.; Hur, Kwan

    2007-01-01

    Objective: In the intent-to-treat analysis of the Multimodal Treatment Study of Children With ADHD (MTA), the effects of medication management (MedMgt), behavior therapy (Beh), their combination (Comb), and usual community care (CC) differed at 14 and 24 months due to superiority of treatments that used the MTA medication algorithm (Comb+MedMgt)…

  1. What Does Confidentiality Inside The Arbitration Mean?

    Directory of Open Access Journals (Sweden)

    Diana - Loredana HOGAŞ

    2014-06-01

    Full Text Available The principle of confidentiality is one of the highlights of the institution of arbitration. Its application is not uniform in the national legislation. The parties to an arbitration agreement may experience various unpleasant situations such as unwanted disclosure of issues they wanted to keep secret, although they had relied on the fact that the private nature of arbitration would protect them from prying eyes and unwanted third parties. In this article we take a brief foray into national and international legislation, analyzing the way in which the principle of confidentiality is applied.

  2. 47 CFR 90.665 - Authorization, construction and implementation of MTA licenses.

    Science.gov (United States)

    2010-10-01

    ... of MTA licenses. 90.665 Section 90.665 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED... Licensing and Use of Mta-Based Smr Systems in the 896-901/935-940 Mhz Band § 90.665 Authorization, construction and implementation of MTA licenses. (a) MTA licenses in the 896-901/935-940 MHz band will...

  3. Cytotoxic effects of White-MTA and MTA-Bio cements on odontoblast-like cells (MDPC-23).

    Science.gov (United States)

    Lessa, Fernanda Campos Rosetti; Aranha, Andreza Maria Fábio; Hebling, Josimeri; Costa, Carlos Alberto de Souza

    2010-01-01

    This study evaluated the cytotoxic effects of 2 mineral trioxide aggregate (MTA) cements - White-MTA-Angelus and a new formulation, MTA-Bio - on odontoblast-like cell (MDPC-23) cultures. Twenty-four disc-shaped (2 mm diameter x 2 mm thick) specimens were fabricated from each material and immersed individually in wells containing 1 mL of DMEM culture medium for either 24 h or 7 days to obtain extracts, giving rise to 4 groups of 12 specimens each: G1 - White-MTA/24 h; G2 - White-MTA/7 days; G3 - MTA-Bio/24 h; and G4 - MTA-Bio/7 days. Plain culture medium (DMEM) was used as a negative control (G5). Cells at 30,000 cells/cm(2) concentration were seeded in the wells of 24-well plates and incubated in a humidified incubator with 5% CO2 and 95% air at 37 degrees C for 72 h. After this period, the culture medium of each well was replaced by 1 mL of extract (or plain DMEM in the control group) and the cells were incubated for additional 2 h. Cell metabolism was evaluated by the MTT assay and the data were analyzed statistically by ANOVA and Tukey's test (alpha=0.05). Cell morphology and the surface of representative MTA specimens of each group were examined by scanning electron microscopy. There was no statistically significant difference (p>0.05) between G1 and G2 or between G3 and G4. No significant difference (p>0.05) was found between the experimental and control groups either. Similar cell organization and morphology were observed in all groups, regardless of the storage periods. However, the number of cells observed in the experimental groups decreased compared to the control group. MTA-Bio presented irregular surface with more porosities than White-MTA. In conclusion, White-MTA and MTA-Bio presented low cytotoxic effects on odontoblast-like cell (MDPC-23) cultures. PMID:20464317

  4. Structure of the corrinoid:coenzyme M methyltransferase MtaA from Methanosarcina mazei.

    Science.gov (United States)

    Hoeppner, Astrid; Thomas, Frank; Rueppel, Alma; Hensel, Reinhard; Blankenfeldt, Wulf; Bayer, Peter; Faust, Annette

    2012-11-01

    The zinc-containing corrinoid:coenzyme M methyltransferase MtaA is part of the methanol-coenzyme M-methyltransferase complex of Methanosarcina mazei. The whole complex consists of three subunits: MtaA, MtaB and MtaC. The MtaB-MtaC complex catalyses the cleavage of methanol (bound to MtaB) and the transfer of the methyl group onto the cobalt of cob(I)alamin (bound to MtaC). The MtaA-MtaC complex catalyses methyl transfer from methyl-cob(III)alamin (bound to MtaC) to coenzyme M (bound to MtaA). The crystal structure of the MtaB-MtaC complex from M. barkeri has previously been determined. Here, the crystal structures of MtaA from M. mazei in a substrate-free but Zn(2+)-bound state and in complex with Zn(2+) and coenzyme M (HS-CoM) are reported at resolutions of 1.8 and 2.1 Å, respectively. A search for homologous proteins revealed that MtaA exhibits 23% sequence identity to human uroporphyrinogen III decarboxylase, which has also the highest structural similarity (r.m.s.d. of 2.03 Å for 306 aligned amino acids). The main structural feature of MtaA is a TIM-barrel-like fold, which is also found in all other zinc enzymes that catalyse thiol-group alkylation. The active site of MtaA is situated at the narrow bottom of a funnel such that the thiolate group of HS-CoM points towards the Zn(2+) ion. The Zn(2+) ion in the active site of MtaA is coordinated tetrahedrally via His240, Cys242 and Cys319. In the substrate-free form the fourth ligand is Glu263. Binding of HS-CoM leads to exchange of the O-ligand of Glu263 for the S-ligand of HS-CoM with inversion of the zinc geometry. The interface between MtaA and MtaC for transfer of the methyl group from MtaC-bound methylcobalamin is most likely to be formed by the core complex of MtaB-MtaC and the N-terminal segment (a long loop containing three α-helices and a β-hairpin) of MtaA, which is not part of the TIM-barrel core structure of MtaA. PMID:23090404

  5. Computer Security: Printing confidentially

    CERN Document Server

    Stefan Lueders, Computer Security Team

    2015-01-01

    Have you ever hesitated to print a confidential document using CERN printers? Or perhaps you have rushed quickly to the printer after hitting the “print” button in order to avoid someone else getting hold of and reading your document? These times are over now with the new printing infrastructure!   Indeed, many of us regularly print out confidential documents like our salary slips, MARS forms, tendering documents and drafts of preliminary papers. The upcoming CERN data protection policy will require all of us to respect the confidentiality of such documents and, as the word “confidential” implies, access to “confidential” or sensitive documents will be tightly controlled. What can we do about the public printers located in many buildings, floors and shared spaces - accessible not only to CERN staff and users but also to visitors and guests? Some printers are located in the vicinity of restaurants, cafeterias or close to paths taken b...

  6. Does Confidential Proxy Voting Matter?

    OpenAIRE

    Romano, Roberta

    2002-01-01

    Confidential voting in corporate proxies is a principal recommendation in activist institutional investors' guidelines for corproate governance reforms. This paper examins the impact of the adoption of confidential corporate proxy voting on proposal outcoms through a panel data set of shareholder and management proposals submitted from 1986-98 to the 130 firms that adopted confidential voting in those years. Institutional investors promoting confidential voting maintain that private sector in...

  7. Does Confidential Proxy Voting Matter?

    OpenAIRE

    Romano, Roberta

    2002-01-01

    Confidential voting in corporate proxies is a principal recommendation in activist institutional investors' guidelines for corproate governance reforms. This paper examins the impact of the adoption of confidential corporate proxy voting on proposal outcoms through a panel data set of shareholder and management proposals submitted from 1986-98 to the 130 firms that adopted confidential voting in those years. Institutional investors promoting confidential voting maintain that private sector ...

  8. Does Confidential Proxy Voting Matter?

    OpenAIRE

    Roberta Romano

    2002-01-01

    Confidential voting in corporate proxies is a principal recommendation in activist institutional investors' guidelines for corporate governance reforms. This paper examines the impact of the adoption of confidential voting on proposal outcomes through a panel data set of shareholder and management proposals submitted from 1986-98 to 130 firms that adopted confidential voting in those years. Institutional investors promoting confidential voting maintain that private sector institutions have co...

  9. Cryogenics for the MuCool Test Area (MTA)

    Science.gov (United States)

    Darve, Christine; Norris, Barry; Pei, Liujin

    2006-03-01

    MuCool Test Area (MTA) is a complex of buildings at Fermi National Accelerator Laboratory, which are dedicated to operate components of a cooling cell to be used for Muon Collider and Neutrino Factory R&D. The long-term goal of this facility is to test ionization cooling principles by operating a 25-liter liquid hydrogen (LH2) absorber embedded in a 5 Tesla superconducting solenoid magnet. The MTA solenoid magnet will be used with RF cavities exposed to a high intensity beam. Cryogens used at the MTA include LHe, LN2 and LH2. The latter dictates stringent system design for hazardous locations. The cryogenic plant is a modified Tevatron refrigerator based on the Claude cycle. The implementation of an in-house refrigerator system and two 300 kilowatt screw compressors is under development. The helium refrigeration capacity is 500 W at 14 K. In addition the MTA solenoid magnet will be batch-filled with LHe every 2 days using the same cryo-plant. This paper reviews cryogenic systems used to support the Muon Collider and Neutrino Factory R&D programs and emphasizes the feasibility of handling cryogenic equipment at MTA in a safe manner.

  10. MTA arvestussüsteemis muutus maksuvõla intressi kuvamine

    Index Scriptorium Estoniae

    2010-01-01

    Maksu- ja Tolliameti (MTA) pressiteade (19.02.2010) selle kohta, et 19. veebruarist 2010 muutus MTA arvestussüsteemis maksuvõla intressi kuvamine. Samuti muutus e-maksuametis/e-tollis kliendipoolse intressinõude koostamine

  11. 47 CFR 90.661 - MTA-based SMR service areas.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false MTA-based SMR service areas. 90.661 Section 90..., 851-869, 896-901, and 935-940 MHz Bands Policies Governing the Licensing and Use of Mta-Based Smr Systems in the 896-901/935-940 Mhz Band § 90.661 MTA-based SMR service areas. MTA licenses for...

  12. MTA1 regulation of ERβ pathway in salivary gland carcinoma cells

    Energy Technology Data Exchange (ETDEWEB)

    Ohshiro, Kazufumi, E-mail: bcmkxo@gwu.edu; Kumar, Rakesh

    2015-09-04

    Abstracts: Although Metastatic-tumor antigen 1 (MTA1) is differentially expressed in metastatic cancer and coregulates the status and activity of nuclear receptors, its role upon estrogen receptor β (ERβ) – a potent tumor suppressor, remains poorly understood. Here we investigated whether MTA1 regulates the expression and functions of ERβ, an ER isoform predominantly expressed in salivary gland cancer cells. We found that the depletion of the endogenous MTA1 in the HSG and HSY salivary duct carcinoma cell lines enhances the expression of ERβ while MTA1 overexpression augmented the expression of ERβ in salivary duct carcinoma cells. Furthermore, MTA1 knockdown inhibited the proliferations and invasion of HSG and HSY cells. The noted ERβ downregulation by MTA1 overexpression involves the process of proteasomal degradation, as a proteasome inhibitor could block it. In addition, both MTA1 knockdown and ERβ overexpression attenuated the cell migration and inhibited the ERK1/2 signaling in the both cell lines. These findings imply that MTA1 dysregulation in a subset of salivary gland cancer might promote aggressive phenotypes by compromising the tumor suppressor activity of ERβ, and hence, MTA1-ERβ axis might serve a new therapeutic target for the salivary gland cancer. - Highlights: • MTA1 silencing upregulates ERβ expression in salivary gland carcinoma cells. • MTA1 overexpression downregulates ERβ expression via proteasomal degradation. • Upregulation of ERβ expression inhibits cell migration and ERK signaling. • MTA1 knockdown inhibits cell proliferation and invasion.

  13. Confidentiality and Huntington's chorea.

    OpenAIRE

    Adams, J.

    1990-01-01

    A doctor has duties towards his patients of both confidentiality and veracity and at times these may conflict, as in the following case. A mother who has the symptoms of Huntington's chorea does not wish her daughters to know. The doctor must try to make her realise how valuable the information can be to the daughters, and thus obtain her consent to inform them. If the mother's consent cannot be obtained, then the doctor must tell the mother that he cannot allow her attitude to deprive the da...

  14. Histological responses of the periodontium to MTA: a systematic review

    NARCIS (Netherlands)

    S. Katsamakis; D.E. Slot; L.W.M. van der Sluis; F. van der Weijden

    2013-01-01

    Aim The purpose of this systematic review was to investigate whether a mineral trioxide aggregate (MTA) restoration of an endodontic-periodontal communication leads to regeneration of the adjacent periodontal tissues. Methodology The databases MEDLINE-PubMed, Cochrane-CENTRAL, and EMBASE were search

  15. Histological responses of the periodontium to MTA : a systematic review

    NARCIS (Netherlands)

    Katsamakis, Sokratis; Slot, Dagmar Else; Van der Sluis, Luc W. M.; Van der Weijden, Fridus

    2013-01-01

    Aim The purpose of this systematic review was to investigate whether a mineral trioxide aggregate (MTA) restoration of an endodontic-periodontal communication leads to regeneration of the adjacent periodontal tissues. Methodology The databases MEDLINE-PubMed, Cochrane-CENTRAL, and EMBASE were search

  16. Effect and significance of Mitomycin C on Mta-1mRNA and Mta-1pro expression in human bladder carcinoma cell line T24%丝裂霉素C对人膀胱癌T24细胞Mta-1mRNA、Mta-1蛋白表达的影响及意义

    Institute of Scientific and Technical Information of China (English)

    唐正严; 彭克亮; 齐琳; 杨罗艳

    2007-01-01

    目的 研究人膀胱癌T24细胞株中Mta-1mRNA和Mta-1蛋白的表达,及丝裂霉素C(MMC)对人膀胱癌T24细胞株中Mta-1mRNA和Mat-1蛋白表达的影响.方法 人膀胱癌T24细胞株培养,MMC干预,用原位杂交和免疫组化检测Mta-1mRNA和Mta-1蛋白的表达.结果 人膀胱癌T24细胞株中Mta-1mRNA阳性细胞表达率MMC组(35.1±9.0)%明显低于对照组组(61.9±12.8)%;Mta-1蛋白阳性细胞表达率MMC组(36.0±8.03)%亦明显低于对照组(57.7±10.1)%,P<0.01.结论 人膀胱癌T24细胞株中存在Mta-1mRNA和Mta-1蛋白的高表达,MMC对人膀胱癌T24细胞株中Mta-1mRNA和Mta-1蛋白的表达具有抑制作用.

  17. Ombuds’ corner: Confidentiality

    CERN Multimedia

    Vincent Vuillemin

    2011-01-01

    In this series, the Bulletin aims to explain the role of the Ombuds at CERN by presenting practical examples of misunderstandings that could have been resolved by the Ombuds if he had been contacted earlier. Please note that, in all the situations we present, the names are fictitious and used only to improve clarity.    Jane* came to the Ombuds to share her concerns about the actions of Mike*, one of her senior colleague supervisors, and insisted on the absolute confidentiality. The Ombuds promised to keep the information confidential following the terms of his mandate. During the discussion it appeared that the whole group was affected by the situation, spending a lot of time discussing how to resolve the problem instead of focusing on their main responsibilities. The risks for the Organization seemed very high and could possibly endanger the safety of the operations.  On one side, the Ombuds believed that it was essential to bring this matter to the attention of senior managem...

  18. 7 CFR 1210.532 - Confidential books, records, and reports.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential books, records, and reports. 1210.532 Section 1210.532 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF...

  19. 7 CFR 1205.540 - Confidential books, records, and reports.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential books, records, and reports. 1205.540 Section 1205.540 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF...

  20. 7 CFR 1207.540 - Confidential books, records, and reports.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential books, records, and reports. 1207.540 Section 1207.540 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF...

  1. A Histologic Evaluation on Tissue Reaction to Three Implanted Materials (MTA, Root MTA and Portland Cement Type I in the Mandible of Cats

    Directory of Open Access Journals (Sweden)

    F. Sasani

    2004-09-01

    Full Text Available Statement of Problem: Nowadays Mineral Trioxide aggregate (MTA is widely used for root end fillings, pulp capping, perforation repair and other endodontic treatments.Investigations have shown similar physical and chemical properties for Portland cement and Root MTA with those described for MTA.Purpose: The aim of this in vitro study was to evaluate the tissue reaction to implanted MTA, Portland cement and Root MTA in the mandible of cats.Materials and Methods: Under asepsis condition and general anesthesia, a mucoperiosteal flap, following the application of local anesthesia, was elevated to expose mandibular symphysis. Two small holes in both sides of mandible were drilled. MTA, Portland cement and Root MTA were mixed according to the manufacturers, recommendation and placed in bony cavities. In positive control group, the test material was Zinc oxide powder plus tricresoformalin. In negative control group, the bony cavities were left untreated. After 3,6 and 12 weeks, the animals were sacrificed and the mandibular sections were prepared for histologic examination under light microscope. The presence and thickness of inflammation, presence of fibrosis capsule, the severity of fibrosis and bone formation were investigated. The data were submitted to Exact Fisher test, chi square test and Kruskal-Wallis test for statistical analysis.Results: No statistically significant differences were found in the degree of inflammation,presence of fibrotic capsule, severity of fibrosis and inflammation thickness between Root MTA, Portland cement and MTA (P>0.05. There was no statistical difference in boneformation between MTA and Portland cement (P>0.05. However, bone formation was not found in any of the Root MTA specimens and the observed tissue was exclusively of fibrosis type.Conclusion: The physical and histological results observed with MTA are similar to those of Root MTA and Portland cement. Additionally, all of these three materials are biocompatible

  2. Clinical significance of overexpression of metastasis-associated gene MTA1 in cervical cancer and bioinformatic analysis of genes coordinately expressed with MTA1

    Directory of Open Access Journals (Sweden)

    Shu-ying FAN

    2016-06-01

    Full Text Available Objective  To analyze the clinical significance of MTA1 overexpression in cervical cancer and bioinformatically screen the potential treatment targets from the gene network correlated with MTA1 overexpression. Methods  SPSS software package was used to analyze the correlation of MTA1 with clinical metastasis and pathological grade of cervical cancer based on TCGA-CESC data set. The edgeR software was used to screen the gene set whose expression was correlated with MTA1 in cervical cancer at a global transcriptional level. DAVID platform was adopted to identify the enriched biological functions of the gene set significantly correlated with MTA1 expression. The transcriptional regulation network of the gene set was constructed with STRING online platform and Cytospace softwares to identify the key regulators. Results  TCGA-CESC database assay showed a significant positive correlation of MTA1 expression with clinical metastasis of cervical cancer (P<0.01. There was a gene set in which gene expression was closely correlated with MTA1 level. Functional enrichment of the gene set indicated that cancer pathways, stem cell pathways, cell migration, cell differentiation, etc. were closely linked to MTA1-correlated malignant behaviors of cancers. Bioinformatical screening showed that Agt, Acta1, Fpr2, Pmch and RGS18, which are correlated with MTA1 expression in cervical cancer, were the key regulators in differentially expressed gene sets. And these genes were located to the GPCR pathway. Conclusions  MTA1 overexpression is significantly correlated with clinical metastasis of cervical cancer and paralleled with the activation of gene regulation involved in stem cell pathway, cytokine receptor signaling, cell migration and differentiation pathways. These genes are correlated with MTA1 expression and potential treatment targets in cervical cancer and should be further experimentally evaluated in the future. DOI: 10.11855/j.issn.0577-7402.2016.05.03

  3. Evaluation of Antibacterial Efficacy of MTA with and without Additives Like Silver Zeolite and Chlorhexidine

    Science.gov (United States)

    Patil, Anand; Giriyappa, Ramesh Halebathi; Singh, Thakur Veerandar; Jyotsna, Sistla Venkata; Rairam, Surabhi

    2016-01-01

    Introduction Microorganisms, predominantly Enterococcus faecalis are found responsible in the progression of pulpal, periradicular diseases and in endodontic failures. Unsuccessful conventional treatment might necessitate the need for a surgical approach; where in retrograde restorative materials are used to seal the apex. Among the root end filling materials, Mineral Trioxide Aggregate (MTA) is considered biocompatible and is most commonly used in clinical applications but it has limited antibacterial activity. Metallic silver and chlorhexidine have been added into various dental materials to enhance the antibacterial activity. Aim This study aimed to compare the antibacterial effect of MTA, MTA mixed with silver zeolite and MTA mixed with chlorhexidine against Enterococcus faecalis. Materials and Methods Test materials used in the study were divided into three groups namely Group 1- MTA, Group 2-MTA + Silver Zeolite, Group 3-MTA + Chlorhexidine. Direct contact test was done by placing a standardized suspension of Enterococcus faecalis on the test materials in a 96 well microtiter plate. The bacterial growth was measured spectrophotometrically using ELISA reader at intervals of one, three and seven days. Statistical Analysis Data was collected by recording the optical density and analyzed using two-way ANOVA and Tukey’s multiple post hoc test followed by paired-t test. Results and Conclusion All test groups showed antibacterial activity against Enterococcus faecalis at day one, three and seven. MTA with silver zeolite showed the maximum antibacterial activity followed by MTA with 2% chlorhexidine. The least antibacterial effect was shown by MTA mixed with sterile water.

  4. Bioethics for clinicians: 8. Confidentiality

    OpenAIRE

    Kleinman, I; Baylis, F; Rodgers, S; P. Singer

    1997-01-01

    Physicians are obliged to keep information about their patients secret. The understanding that the physician will not disclose private information about the patient provides a foundation for trust in the therapeutic relationship. Respect for confidentiality is firmly established in codes of ethics and in law. It is sometimes necessary, however, for physicians to breach confidentiality. Physicians should familiarize themselves with legislation in their own province governing the disclosure of ...

  5. 47 CFR 90.663 - MTA-based SMR system operations.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false MTA-based SMR system operations. 90.663 Section... 806-824, 851-869, 896-901, and 935-940 MHz Bands Policies Governing the Licensing and Use of Mta-Based Smr Systems in the 896-901/935-940 Mhz Band § 90.663 MTA-based SMR system operations. (a)...

  6. Confidentiality in gamete donation

    Directory of Open Access Journals (Sweden)

    Neda Yavari

    2006-03-01

    Full Text Available During recent decades, the third person intervention in human artificial insemination has created new hopes for infertile couples. However these new progresses have propounded new ethical and legal concerns for families. One of them is confidentiality regarding gamete donor's identity, and its disclosure to the future child and others. Of course, negligence to this ethical issue would produce a big barrier for efficient health care services."nFor compiling this article we searched different websites including Pubmed, Ovid, Elsevier, Google and etc and the resulting articles were investigated carefully. "nIn this article, the history of gamete donation in different countries is reviewed initially and the mentioned reasons for anonymity with that of disclosure are compared. "nBecause of the different cultures and values of various societies, it is not justifiable to propose a unique method regarding this issue; however, there have to be clear rules in this regard, in each country. In order to facilitate this process, pretreatment counseling courses should be established to explain different aspects of this issue for the recipients.

  7. Expression of MTA2 Gene in Ovarian Epithelial Cancer and Its Clinical Implication

    Institute of Scientific and Technical Information of China (English)

    JI Yuxin; ZHANG Ping; LU Yunping; MA Ding

    2006-01-01

    In order to investigate the roles of MTA2 in the pathogenesis of ovarian epithelial cancer, the expression of MTA2 in 4 ovarian cell lines were detected by semi-quantitative RT-PCR and Western-blot assays. MTA2 expression in normal, borderline, benign and malignant epithelial o varian tissues was immunohistochemically examined. The expression of MTA2 mRNA and protein was detected in all of 4 cell lines of ovarian epithelial cancer. The expression of MTA2 mRNA and protein was higher in strong migration cell lines than in weak migration ones. In borderline and malignant ovarian tissues tested, MTA2 staining was dramatically stronger than in normal and benign tissues (P<0.01). The expression levels in malignant ovarian tissues were significantly higher than that in borderline epithelial ovarian tissues (P<0.01). The expression of MTA2 was correlated with clinical stage, histopathological grade and lymph node metastasis. It was concluded that the high expression of MTA2 was associated with more aggressive behaviors of epithelial ovarian cancer. MTA2 provides a novel indicator of ovarian cancer.

  8. An In Vitro Comparison ofApical Leakage of Biocalex, White MTA, Gray MTA, and Amalgam as Root-End Fillings

    Directory of Open Access Journals (Sweden)

    P. Ghaziani

    2008-09-01

    Full Text Available Objective: In a cavity prepared through endodontic surgery, application of a material to provide apical seal and prevent bacterial and tissue exudates is of great importance. The purpose of this study was to compare the sealing ability of Biocalex with white MTA, gray MTA, and amalgam as root-end fillings.Materials and Methods: Sixty-six single-rooted extracted human teeth were cleaned, shaped, and obturated with gutta-percha. The root apices were resected and 3 mm deep retrograde cavity was prepared. The teeth were assigned randomly into four groups of 15 teeth each and retrofilled with Biocalex, gray MTA, white MTA, and amalgam. Six teeth served as positive and negative controls. All root surfaces, except the ending part, were covered with two layers of nail polish. The roots were then stored in 2% methylene blue for 72 hours and embedded in polyester resin. The teeth were sectioned buccolingually and maximum extent of dye penetration was evaluated through a stereomicroscope. Statis-tical analysis was carried out by one way ANOVA and Tukey test.Results: Biocalex showed significantly less leakage compared to the other three materials P<0.05. White MTA showed significantly lower amount of leakage as Compared to gray MTA and amalgam P<0.05.Conclusion: The findings of this study showed that retrograde filling with Biocalex can achieve proper sealing ability and this material can be used as an alternative for MTA and amalgam.

  9. Methylthioadenosine (MTA inhibits melanoma cell proliferation and in vivo tumor growth

    Directory of Open Access Journals (Sweden)

    Cortés Javier

    2010-06-01

    Full Text Available Abstract Background Melanoma is the most deadly form of skin cancer without effective treatment. Methylthioadenosine (MTA is a naturally occurring nucleoside with differential effects on normal and transformed cells. MTA has been widely demonstrated to promote anti-proliferative and pro-apoptotic responses in different cell types. In this study we have assessed the therapeutic potential of MTA in melanoma treatment. Methods To investigate the therapeutic potential of MTA we performed in vitro proliferation and viability assays using six different mouse and human melanoma cell lines wild type for RAS and BRAF or harboring different mutations in RAS pathway. We also have tested its therapeutic capabilities in vivo in a xenograft mouse melanoma model and using variety of molecular techniques and tissue culture we investigated its anti-proliferative and pro-apoptotic properties. Results In vitro experiments showed that MTA treatment inhibited melanoma cell proliferation and viability in a dose dependent manner, where BRAF mutant melanoma cell lines appear to be more sensitive. Importantly, MTA was effective inhibiting in vivo tumor growth. The molecular analysis of tumor samples and in vitro experiments indicated that MTA induces cytostatic rather than pro-apoptotic effects inhibiting the phosphorylation of Akt and S6 ribosomal protein and inducing the down-regulation of cyclin D1. Conclusions MTA inhibits melanoma cell proliferation and in vivo tumor growth particularly in BRAF mutant melanoma cells. These data reveal a naturally occurring drug potentially useful for melanoma treatment.

  10. Methylthioadenosine (MTA) inhibits melanoma cell proliferation and in vivo tumor growth

    International Nuclear Information System (INIS)

    Melanoma is the most deadly form of skin cancer without effective treatment. Methylthioadenosine (MTA) is a naturally occurring nucleoside with differential effects on normal and transformed cells. MTA has been widely demonstrated to promote anti-proliferative and pro-apoptotic responses in different cell types. In this study we have assessed the therapeutic potential of MTA in melanoma treatment. To investigate the therapeutic potential of MTA we performed in vitro proliferation and viability assays using six different mouse and human melanoma cell lines wild type for RAS and BRAF or harboring different mutations in RAS pathway. We also have tested its therapeutic capabilities in vivo in a xenograft mouse melanoma model and using variety of molecular techniques and tissue culture we investigated its anti-proliferative and pro-apoptotic properties. In vitro experiments showed that MTA treatment inhibited melanoma cell proliferation and viability in a dose dependent manner, where BRAF mutant melanoma cell lines appear to be more sensitive. Importantly, MTA was effective inhibiting in vivo tumor growth. The molecular analysis of tumor samples and in vitro experiments indicated that MTA induces cytostatic rather than pro-apoptotic effects inhibiting the phosphorylation of Akt and S6 ribosomal protein and inducing the down-regulation of cyclin D1. MTA inhibits melanoma cell proliferation and in vivo tumor growth particularly in BRAF mutant melanoma cells. These data reveal a naturally occurring drug potentially useful for melanoma treatment

  11. Dietary Pterostilbene is a novel MTA1-targeted chemopreventive and therapeutic agent in prostate cancer

    Science.gov (United States)

    Dietary nutrients with ability to reverse adverse epigenetic events have great potential for cancer chemoprevention. Overexpression of the epigenetic modifier metastasis-associated protein 1 (MTA1) is associated with aggressive human prostate cancer. The purpose of this study was to determine MTA1-d...

  12. Gerakan Religio-Kultural MTA Dakwah : Mobilisasi dan Tafsir-Tanding

    NARCIS (Netherlands)

    Sunarwoto,

    2012-01-01

    This article investigates the role of Majelis Tafsir Al-Qur’an (MTA), a dakwah movement operating aminly in Central Java. MTA is known as the Muslim purist movement whose mission focuses on the purification of Islam by utilizing the slogan back to the Qur’an and Sunnah. Using the social movement the

  13. Solubility and bacterial sealing ability of MTA and root-end filling materials

    DEFF Research Database (Denmark)

    Espir, Camila Galletti; Guerreiro-Tanomaru, Juliane Maria; Spin-Neto, Rubens;

    2016-01-01

    Objective To evaluate solubility and sealing ability of Mineral Trioxide Aggregate (MTA) and root-end filling materials. Material and Methods The materials evaluated were: MTA, Calcium Silicate Cement with zirconium oxide (CSC/ZrO2), and zinc oxide/eugenol (ZOE). Solubility test was performed acc...

  14. Data Confidentiality Challenges in Big Data Applications

    Energy Technology Data Exchange (ETDEWEB)

    Yin, Jian; Zhao, Dongfang

    2015-12-15

    In this paper, we address the problem of data confidentiality in big data analytics. In many fields, much useful patterns can be extracted by applying machine learning techniques to big data. However, data confidentiality must be protected. In many scenarios, data confidentiality could well be a prerequisite for data to be shared. We present a scheme to provide provable secure data confidentiality and discuss various techniques to optimize performance of such a system.

  15. A comparative histologic study on furcal perforation repair with Root MTA and Pro Root MTA in fully developed teeth in dog

    Directory of Open Access Journals (Sweden)

    Rahimi S.

    2005-07-01

    Full Text Available Background and Aim: The goal of endodontics is to seal the root canal system from the orifice to apical constriction completely and tridimensionally.Hence perforations during root canal therapy, because of caries or resorptions must be sealed and obturated with ideal materials. The aim of this study was to histologically compare two kinds of mineral trioxide aggregate Root MTA and Pro Root MTA for furcal perforation repair in developed teeth in dog. Materials and Methods: In this experimental study, thirty teeth consisting of second, third and fourth mandibular premolars of five German shepherd dogs were selected. Twenty-four teeth were randomly divided into four experimental groups (6 teeth each. One pair of Root MTA and Pro Root MTA groups studied in one month and the other in three months intervals. Positive and negative control groups was each contained three teeth. In positive control group, perforations were not treated and negative control group contained intact teeth. In experimental groups perforations repaired after one week exposure to oral cavity with Root MTA or Pro Root MTA. After time intervals animals were subjected to vital perfusion and 6 m histologic sections were prepared. Inflammation and hard tissue formation were ranked by Cox criteria. Data were analysed using Mann-Whitney and Chi-Square statistical tests with P0.05. Conclusion: Mineral Trioxide Aggregate is an adequate material for furcal perforation repair in dog’s teeth. Root MTA could be a good substitute for Pro Root MTA considering the lower cost and similar characteristics.

  16. Confidentiality of mediation communications

    OpenAIRE

    Koo, AKC

    2011-01-01

    Discusses the common law protection afforded to mediation negotiations by the without prejudice rule, legal professional privilege and the mediation agreement signed by all parties prior to the commencement of the mediation process. Examines the inclusion of admissions within the without prejudice rule, and the exceptions to the rule. Notes two pieces of legislation offering protection, namely the US Uniform Mediation Act 2001 and Directive 2008/52. Argues that the limited protection in the U...

  17. Sealing Ability of MTA Used in Perforation Repair of Permanent Teeth; Literature Review

    Science.gov (United States)

    Baroudi, Kusai; Samir, Samah

    2016-01-01

    There were several materials used to seal different types of perforation defects. MTA is one of these restorative materials that is considered the most effective, biocompatible, non-toxic, and non-irritant; promote bone healing and cementum regeneration. The objective of this article was to review and summarize the sealing ability of MTA compared with the other materials used for sealing different types of root perforations of permanent teeth. A literature search was conducted using Medline, accessed via the National Library of Medicine Pub Med from 2005 to 2015 searching for articles related to sealing ability of MTA. This study found that factors affecting prognosis are the size, site of the perforation and time elapsed as well as the repair material. MTA is an important filling material to be used for sealing different types of perforations when perforated sites sealed immediately with MTA. PMID:27347231

  18. Confidentiality and integrity in crowdsourcing systems

    CERN Document Server

    Ranj Bar, Amin

    2014-01-01

    Confidentiality and Integrity in Crowdsourcing Systems focuses on identity, privacy, and security related issues in crowdsourcing systems and in particular the confidentiality and integrity of online data created via crowdsourcing. This book begins with an introduction to crowdsourcing and then covers the privacy and security challenges of Confidentiality. The book examines integrity in these systems and the management and control of crowdsourcing systems.

  19. 37 CFR 382.14 - Confidential information.

    Science.gov (United States)

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Confidential information. 382... Confidential information. (a) Definition. For purposes of this subpart, “Confidential Information” shall include the statements of account and any information contained therein, including the amount of...

  20. 7 CFR 983.65 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 983.65 Section 983.65..., ARIZONA, AND NEW MEXICO Reports, Books and Records § 983.65 Confidential information. All reports and records furnished or submitted by handlers to the committee which include confidential data or...

  1. 37 CFR 261.5 - Confidential information.

    Science.gov (United States)

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Confidential information. 261... THE MAKING OF EPHEMERAL REPRODUCTIONS § 261.5 Confidential information. (a) For purposes of this part, “Confidential Information” shall include the statements of account, any information contained therein,...

  2. 37 CFR 384.5 - Confidential information.

    Science.gov (United States)

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Confidential information. 384... BUSINESS ESTABLISHMENT SERVICES § 384.5 Confidential information. (a) Definition. For purposes of this part, “Confidential Information” shall include the statements of account, any information contained therein,...

  3. Comparative SEM study of the marginal adaptation of white and grey MTA and Portland cement.

    Science.gov (United States)

    Bidar, Maryam; Moradi, Saeed; Jafarzadeh, Hamid; Bidad, Salma

    2007-04-01

    The use of a suitable substance that prevents egress of potential contaminants into the periapical tissues is important in endodontic surgery. The aim of the present study was to compare the marginal adaptation of three root-end filling materials (white mineral trioxide aggregate (MTA), grey MTA and Portland cement), using scanning electron microscopy. Seventy-five single-rooted extracted human teeth were used. The canals were instrumented and filled with gutta-percha. Following root-end resection and cavity preparation, root-end cavities were filled with white MTA, grey MTA or Portland cement. Using a diamond saw, roots were longitudinally sectioned into two halves. Under scanning electron microscopy, the gaps between the material and dentinal wall were measured. The data were analysed using Kruskal-Wallis test. The mean of the gap in grey MTA, white MTA and Portland cement was 211.6, 349 and 326.3 microm, respectively. The results indicate that the gap between grey MTA and the dentinal wall is less than other materials, but there was no significant difference between the materials tested in this study (P > 0.05).

  4. MTA1基因表达与子宫颈癌细胞侵袭转移的关系%Relationship between MTA1 expression and invasive and metastatic ability of cervical cancer cell

    Institute of Scientific and Technical Information of China (English)

    韩肖燕; 钱海利; 杨隽钧; 张雪燕; 付明; 梁萧; 林晨; 向阳

    2011-01-01

    目的:探讨MTA1基因表达与宫颈癌细胞侵袭转移的关系。方法将真核细胞表达载体pcDNA3质粒、MTA1基因表达载体pcDNA3-MTA1质粒、MTA1基因RNA干扰载体pSilencer3.1-MTA1-siRNA质粒稳定转染宫颈癌细胞株CaSki细胞(分别命名为对照组、MTA1组、MTA1 -siRNA组),逆转录(RT) -PCR技术和蛋白印迹法检测CaSki细胞中MTA1 mRNA和蛋白的表达,四甲基偶氮唑蓝(MTT)比色法及平板集落形成实验检测CaSki细胞的增殖情况,划痕实验、穿膜实验检测CaSki细胞的迁移能力,基质黏附实验检测CaSki细胞的黏附能力,细胞侵袭实验检测CaSki细胞的侵袭能力,流式细胞仪检测CaSki细胞的细胞周期比例。将3组CaSki细胞接种于裸鼠腋下,观察其在裸鼠体内的生长情况。结果 MTA1组细胞中MTA1 mRNA和蛋白的表达强度均明显高于对照组,而MTA1 -siRNA组细胞中MTA1 mRNA和蛋白的表达强度均明显低于对照组。MTT比色法检测显示,与对照组比较,自第2天起,MTA1组细胞的生长速度加快,而MTA1-siRNA组细胞的生长速度减慢,分别比较,差异均有统计学意义(P<0.05);平板集落形成实验显示,对照组、MTA1组、MTA1 -siRNA组的克隆数分别为( 133±6)、(169±10)和(57±5)个,MTA1组明显多于对照组(P<0.05),而MTA1-siRNA组明显少于对照组(P<0.05)。划痕实验显示,MTA1组细胞的迁移能力明显增强,而MTA1 -siRNA组细胞的迁移能力明显减弱;穿膜实验显示,对照组、MTA1组、MTA1-siRNA组穿膜细胞数分别为( 153±17)、( 247±38)和(82±10)个,MTA1组明显多于对照组(P<0.05),而MTA1-siRNA组明显少于对照组(P<0.05)。基质黏附实验显示,孵育90 min时,对照组、MTA1组、MTA1-siRNA组细胞的黏附率分别为(69.3±3.6)%、(80.4±5.6)%、(39.2±7.4)%,MTA1组明显高于对照组(P<0.05),而MTA1 -siRNA组明显低于对照组(P<0.05)。细胞

  5. The banker customer confidential relationship

    OpenAIRE

    Alqayem, Ameera

    2015-01-01

    This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University London Conscious of the limitations of the petroleum-based economy in Bahrain, the Bahraini government aims to improve other industries, such as finance. Therefore, the aim of this thesis is to study the current status of banking confidentiality in Bahrain, and to discover the possibilities for improvement in the banking sector in Bahrain, so that the country can succeed in being the financ...

  6. Improved assessment of multiple sclerosis lesion segmentation agreement via detection and outline error estimates

    Directory of Open Access Journals (Sweden)

    Wack David S

    2012-07-01

    Full Text Available Abstract Background Presented is the method “Detection and Outline Error Estimates” (DOEE for assessing rater agreement in the delineation of multiple sclerosis (MS lesions. The DOEE method divides operator or rater assessment into two parts: 1 Detection Error (DE -- rater agreement in detecting the same regions to mark, and 2 Outline Error (OE -- agreement of the raters in outlining of the same lesion. Methods DE, OE and Similarity Index (SI values were calculated for two raters tested on a set of 17 fluid-attenuated inversion-recovery (FLAIR images of patients with MS. DE, OE, and SI values were tested for dependence with mean total area (MTA of the raters' Region of Interests (ROIs. Results When correlated with MTA, neither DE (ρ = .056, p=.83 nor the ratio of OE to MTA (ρ = .23, p=.37, referred to as Outline Error Rate (OER, exhibited significant correlation. In contrast, SI is found to be strongly correlated with MTA (ρ = .75, p  Conclusions The DE and OER indices are proposed as a better method than SI for comparing rater agreement of ROIs, which also provide specific information for raters to improve their agreement.

  7. Hydrogen ion and calcium releasing of mTA fillapex® and mTA-based formulations

    Directory of Open Access Journals (Sweden)

    Milton Carlos Kuga

    2011-07-01

    Full Text Available Introduction: MTA is composed of various metal oxides, calcium oxide and bismuth. It has good biological properties and is indicated in cases of endodontic complications. Several commercial formulations are available and further studies are necessary to evaluate these materials. Objective: To evaluate pH and calcium releasing of MTA Fillapex® compared with gray and white MTA. Material and methods: Gray and white MTA (Angelus and MTA Fillapex® (Angelus were manipulated and placed into polyethylene tubes and immersed in distilled water. The pH of these solutions was measured at 24 hours, 7 days and 14 days. Simultaneously, at these same aforementioned periods, these materials’ calcium releasing was quantified, through atomic absorption spectrophotometry. The results were submitted to ANOVA, with level of significance at 5%. Results: Concerning to pH, the materials present similar behaviors among each other at 24 hours (p > 0.05. At 7 and 14 days, MTA Fillapex® provided significantly lower pH values than the other materials (p < 0.05. Regarding to calcium releasing, at 24 hours and 7 days, MTA Fillapex® provided lower releasing than the other materials (p < 0.05. After 14 days, differences were found between MTA Fillapex® and gray MTA (p < 0.05. Conclusion: All materials showed alkaline pH and calcium releasing, with significantly lower values for MTA Fillapex® sealer.

  8. Perturbing Nonnormal Confidential Attributes: The Copula Approach

    OpenAIRE

    Rathindra Sarathy; Krishnamurty Muralidhar; Rahul Parsa

    2002-01-01

    Protecting confidential, numerical data in databases from disclosure is an important issue both for commercial organizations as well as data-gathering and disseminating organizations (such as the Census Bureau). Prior studies have shown that perturbation methods are effective in protecting such confidential data from snoopers. Perturbation methods have to provide legitimate users with accurate (unbiased) information, and also provide adequate security against disclosure of confidential inform...

  9. Global transcriptional profiling reveals Streptococcus agalactiae genes controlled by the MtaR transcription factor

    Directory of Open Access Journals (Sweden)

    Cvek Urska

    2008-12-01

    Full Text Available Abstract Background Streptococcus agalactiae (group B Streptococcus; GBS is a significant bacterial pathogen of neonates and an emerging pathogen of adults. Though transcriptional regulators are abundantly encoded on the GBS genome, their role in GBS pathogenesis is poorly understood. The mtaR gene encodes a putative LysR-type transcriptional regulator that is critical for the full virulence of GBS. Previous studies have shown that an mtaR- mutant transports methionine at reduced rates and grows poorly in normal human plasma not supplemented with methionine. The decreased virulence of the mtaR mutant was correlated with a methionine transport defect; however, no MtaR-regulated genes were identified. Results Microarray analysis of wild-type GBS and an mtaR mutant revealed differential expression of 12 genes, including 1 upregulated and 11 downregulated genes in the mtaR mutant. Among the downregulated genes, we identified a cluster of cotranscribed genes encoding a putative methionine transporter (metQ1NP and peptidase (pdsM. The expression of four genes potentially involved in arginine transport (artPQ and arginine biosynthesis (argGH was downregulated and these genes localized to two transcriptional units. The virulence factor cspA, which encodes an extracellular protease, was downregulated. Additionally, the SAN_1255 locus, which putatively encodes a protein displaying similarity to plasminogen activators, was downregulated. Conclusion To our knowledge, this is the first study to describe the global influence of MtaR on GBS gene expression. This study implicates the metQ1NP genes as encoding the MtaR-regulated methionine transporter, which may provide a mechanistic explanation for the methionine-dependent growth defect of the mtaR mutant. In addition to modulating the expression of genes involved in metabolism and amino acid transport, inactivation of mtaR affected the expression of other GBS genes implicated in pathogenesis. These findings

  10. Comparative Analysis of Selected Physicochemical Properties of Pozzolan Portland and MTA-Based Cements

    OpenAIRE

    Dorileo, Maura Cristiane Gonçales Orçati; Villa, Ricardo Dalla; Guedes, Orlando Aguirre; Aranha, Andreza Maria Fábio; Semenoff-Segundo, Alex; Bandeca, Matheus Coelho; Borges, Alvaro Henrique

    2014-01-01

    Physicochemical properties of pozzolan Portland cement were compared to ProRoot MTA and MTA BIO. To test the pH, the samples were immersed in distilled water for different periods of time. After the pH analysis, the sample was retained in the plastic recipient, and the electrical conductivity of the solution was measured. The solubility and radiopacity properties were evaluated according to specification 57 of the American National Standard Institute/American Dental Association (ANSI/ADA). Th...

  11. MTA and calcium hydroxide for pulp capping MTA e hidróxido de cálcio para proteção pulpar direta

    Directory of Open Access Journals (Sweden)

    Alexandra Mussolino de Queiroz

    2005-06-01

    Full Text Available This study evaluated the biocompatibility of mineral trioxide aggregate (MTA after direct capping of exposed pulp tissue in dog's teeth. Class I cavities were prepared in 26 teeth from 3 adult dogs. MTA was applied over the exposed pulp in 13 teeth and paste of calcium hydroxide plus distilled water (control was applied in the remaining 13 teeth. After 90 days, the animals were killed; the maxilla and mandible were dissected and sectioned to obtain individual roots. The samples were processed histologically. The pulp and periapical response observed with the use of MTA was similar to that of calcium hydroxide paste. In all specimens, there was a dentin bridge obliterating the exposure, an intact odontoblastic layer, no inflammatory cells, normal connective pulp tissue, normal apical and periapical regions and no bone tissue changes. Similar to calcium hydroxide, MTA presented excellent response when used for direct pulp capping.O objetivo deste trabalho foi avaliar a biocompatibilidade do agregado de trióxido mineral (MTA, após proteção pulpar direta em dentes de cães. Foram preparadas cavidades de Classe I, em 26 dentes de 3 cães adultos. O MTA foi aplicado sobre 13 dentes e a pasta de hidróxido de cálcio (grupo controle foi aplicada sobre os 13 dentes remanescentes. Após 90 dias, os animais foram mortos, a maxila e a mandíbula foram dissecadas e os dentes foram seccionados para obtenção de raízes individualizadas. Os espécimes foram processados histologicamente. A resposta do tecido pulpar e periapical foi semelhante para o MTA e o hidróxido de cálcio. Em todos os espécimes havia ponte de dentina obliterando o local da exposição pulpar, camada odontoblástica íntegra, ausência de células inflamatórias, tecido pulpar normal, e ausência de alterações na região periapical e óssea. Da mesma maneira que o hidróxido de cálcio, o MTA apresentou excelente biocompatibilidade quando usado para proteção pulpar direta.

  12. Confidentiality and American semen donors.

    Science.gov (United States)

    Karow, A M

    1993-01-01

    Most American donor insemination programs include a policy of complete confidentiality concerning the donor of the semen. This is the result of a long legal tradition of American constitutional law. However, some slight abridgement of this body of legal decisions might be very much in the best interests of children arising from donor insemination, and even--in most cases, in fact--the donors themselves. With regard to the children, the factors involved are both those of genetic counseling, should the need arise, and psychological development. Of course, as at present, the donor must be relieved of all responsibility, both legal and financial. PMID:8348162

  13. The roles of Material Transfer Agreements in genetics databases and Bio-banks

    NARCIS (Netherlands)

    T. Margoni

    2013-01-01

    In this paper, we will analyse the role (or better the roles) that a specific document, the Material Transfer Agreement (MTA), has accrued in the exchange of bio-materials between research institutions. We will see how fundamental such documents have become in the most recent years, and that an unco

  14. The MTA family proteins as novel histone H3 binding proteins

    Directory of Open Access Journals (Sweden)

    Wu Meng

    2013-01-01

    Full Text Available Abstract Background The nucleosome remodeling and histone deacetylase complex (Mi2/NRD/NuRD/NURD has a broad role in regulation of transcription, DNA repair and cell cycle. Previous studies have revealed a specific interaction between NURD and histone H3N-terminal tail in vitro that is not observed for another HDAC1/2-containing complex, Sin3A. However, the subunit(s responsible for specific binding of H3 by NURD has not been defined. Results In this study, we show among several class I HDAC-containing corepressor complexes only NURD exhibits a substantial H3 tail-binding activity in vitro. We present the evidence that the MTA family proteins within the NURD complex interact directly with H3 tail. Extensive in vitro binding assays mapped the H3 tail-binding domain to the C-terminal region of MTA1 and MTA2. Significantly, although the MTA1 and MTA2 mutant proteins with deletion of the C-terminal H3 tail binding domain were assembled into the endogenous NURD complex when expressed in mammalian cells, the resulting NURD complexes were deficient in binding H3 tail in vitro, indicating that the MTA family proteins are required for the observed specific binding of H3 tail peptide by NURD in vitro. However, chromatin fractionation experiments show that the NURD complexes with impaired MTA1/2-H3 tail binding activity remained to be associated with chromatin in cells. Conclusions Together our study reveals a novel histone H3-binding activity for the MTA family proteins and provides evidence that the MTA family proteins mediate the in vitro specific binding of H3 tail peptide by NURD complex. However, multiple mechanisms are likely to contribute to the chromatin association of NURD complex in cells. Our finding also raises the possibility that the MTA family proteins may exert their diverse biological functions at least in part through their direct interaction with H3 tail.

  15. 49 CFR 537.12 - Confidential information.

    Science.gov (United States)

    2010-10-01

    ... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AUTOMOTIVE FUEL ECONOMY REPORTS § 537.12 Confidential information. (a) Information made available under § 537.11 for public inspection does not include information for... 49 Transportation 6 2010-10-01 2010-10-01 false Confidential information. 537.12 Section...

  16. 46 CFR 249.11 - Confidentiality.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 8 2010-10-01 2010-10-01 false Confidentiality. 249.11 Section 249.11 Shipping MARITIME ADMINISTRATION, DEPARTMENT OF TRANSPORTATION REGULATIONS AFFECTING SUBSIDIZED VESSELS AND OPERATORS APPROVAL OF UNDERWRITERS FOR MARINE HULL INSURANCE § 249.11 Confidentiality. (a) If the data submitted under this...

  17. 7 CFR 1210.607 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential information. 1210.607 Section 1210.607 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING... PROMOTION PLAN Referendum Procedures § 1210.607 Confidential information. All ballots cast and...

  18. 7 CFR 926.19 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 926.19 Section 926.19... Confidential information. All reports and records furnished or submitted pursuant to this part which include data or information constituting a trade secret or disclosing the trade position or financial...

  19. 7 CFR 930.73 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 930.73 Section 930.73... Handling Reports and Records § 930.73 Confidential information. All reports and records furnished or submitted by handlers to the Board and its authorized agents which include data or information...

  20. 7 CFR 984.79 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 984.79 Section 984.79... Regulating Handling Reports, Books, and Other Records § 984.79 Confidential information. All reports and records submitted by handlers to the Board, which include data or information constituting a trade...

  1. 7 CFR 985.63 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 985.63 Section 985.63... Confidential information. All reports and records furnished or submitted by handlers to, or obtained by the employees of the Committee, which contain data or information constituting a trade secret or disclosing...

  2. 7 CFR 996.72 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 996.72 Section 996.72... Confidential information. All reports and records furnished or submitted by handlers and importers to USDA which include data or information constituting a trade secret or disclosing a trade position,...

  3. 7 CFR 993.71 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 993.71 Section 993.71... CALIFORNIA Order Regulating Handling Reports and Books and Other Records § 993.71 Confidential information... information constituting a trade secret or disclosing of the trade position, financial condition, or...

  4. 7 CFR 28.960 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Confidential information. 28.960 Section 28.960 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards... Tests § 28.960 Confidential information. No information concerning individual tests under...

  5. 7 CFR 989.75 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 989.75 Section 989.75... GROWN IN CALIFORNIA Order Regulating Handling Reports and Records § 989.75 Confidential information. All... to no person, except the Secretary upon request therefor, data or information obtained or...

  6. 37 CFR 380.5 - Confidential information.

    Science.gov (United States)

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Confidential information. 380... information. (a) Definition. For purposes of this part, “Confidential Information” shall include the statements of account and any information contained therein, including the amount of royalty payments,...

  7. 7 CFR 900.352 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 900.352 Section 900.352... Determining the Qualification of Cooperative Milk Marketing Associations § 900.352 Confidential information. The documents and other information submitted by an applicant association and otherwise obtained...

  8. 7 CFR 982.70 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 982.70 Section 982.70... WASHINGTON Order Regulating Handling Records and Reports § 982.70 Confidential information. All reports and records furnished or submitted by handlers to the Board, which include data or information constituting...

  9. 7 CFR 929.65 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 929.65 Section 929.65... Confidential information. All reports and records furnished or submitted by handlers to the committee and its authorized agents which include data or information constituting a trade secret or disclosing the...

  10. 7 CFR 932.63 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 932.63 Section 932.63... Regulating Handling Reports and Records § 932.63 Confidential information. All reports and information... any person, other than the Secretary upon request therefor, data, or information obtained or...

  11. 37 CFR 262.5 - Confidential information.

    Science.gov (United States)

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Confidential information. 262... information. (a) Definition. For purposes of this part, “Confidential Information” shall include the statements of account, any information contained therein, including the amount of royalty payments, and...

  12. 7 CFR 54.1033 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Confidential treatment. 54.1033 Section 54.1033 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards... and Poultry Products § 54.1033 Confidential treatment. Every design review specialist...

  13. 7 CFR 1150.278 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 9 2010-01-01 2009-01-01 true Confidential treatment. 1150.278 Section 1150.278 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing... of Milk Producer Organizations § 1150.278 Confidential treatment. All documents and other...

  14. Management of Root Perforations Using MTA with or without Er:YAG Laser Irradiation: An In Vitro Study

    Directory of Open Access Journals (Sweden)

    M. Tielemans

    2012-01-01

    Full Text Available The aim of this in vitro study is to compare the microleakage of a root perforation sealed with MTA (mineral trioxide aggregate (group M to that sealed with MTA following Er:YAG laser irradiation (group ML. Forty-two recently extracted human monoroot teeth were used. Two cavities were prepared on each root surface. Randomly, on each root, the exposed dentine of one cavity was irradiated prior to MTA filling using an Er:YAG laser with the following settings: 200 mJ/pulses under an air water spray, 10 Hz, pulse duration of 50 μsec, and 0.7 mm beam diameter. All cavities were then sealed with MTA. submitted to thermocycling and immersed in 2% methylene blue dye solution for 12 h. The penetration of methylene blue in the microleakage of cavity was observed and recorded. The mean value dye penetration in cavities sealed with MTA following Er:YAG laser irradiation (23.91±14.63% was lower than that of unlased cavities sealed only with MTA (25.17±17.53%. No significant difference was noted. The use of an Er:YAG laser beam for dentinal conditioning prior to MTA filling of perforated roots did not decrease significantly the microleakage of MTA sealing when compared to the conventional use of MTA filling.

  15. MTA1 promotes proliferation and invasion in human gastric cancer cells

    Directory of Open Access Journals (Sweden)

    Yao Y

    2015-07-01

    Full Text Available Yuan Yao,1 Shuting Feng,1 Mingming Xiao,2 Yan Li,1 Li Yang,1 Jiao Gong1 1Digestive System Department, 2Department of Pathology, The People’s Hospital of Liaoning Province, Shenyang, Liaoning, People’s Republic of China Abstract: Although metastasis-associated protein 1 (MTA1 has been widely li­nked to tumor metastasis, the relevant mechanisms remain to be elucidated, especially in gastric cancer. The aim of this study was to examine whether the MTA1 gene is associated with the process of proliferation and invasion by regulating several molecular targets in gastric cancer. MTA1 expression in 61 gastric cancer tissue and adjacent noncancerous tissues was analyzed by immunohistochemistry. The prognostic value of MTA1 for overall survival and disease-free survival was determined by Kaplan–Meier estimates, and the significance of differences between curves was evaluated by the log-rank test. Furthermore, overexpression of MTA1 in SGC7901 and BGC823 cells promoted cell cycle progression, cell adhesion, and cell invasion. Our study found that MTA1 is overexpressed in gastric cancers, which contributes to malignant cell growth by facilitating cell cycle progression through upregulation of cyclin D1 and accelerates the migration and invasion of human gastric cancer cells by regulating expression of fibronectin and MMP2/MMP9. Taken together, MTA1 was involved in the pathogenesis of gastric cancer and might be a candidate therapeutic target in gastric cancer. Keywords: cell cycle, cell adhesion, migration

  16. Cytotoxic effects of new MTA-based cement formulations on fibroblast-like MDPL-20 cells.

    Science.gov (United States)

    Garcia, Lucas da Fonseca Roberti; Santos, Alailson Domingos dos; Moraes, João Carlos Silos; Costa, Carlos Alberto de Souza

    2016-01-01

    The present study aimed at evaluating the cytotoxic effects of a novel cement called CER on periodontal fibroblast-like cells of mice (MDPL-20), in comparison with different formulations of Mineral Trioxide Aggregate (MTA), by means of the cell viability test (MTT) and cell morphology analysis. Thirty-two round-shaped samples were fabricated with the following cements: white MTA, white and gray CER and experimental white MTA. The samples were immersed in serum-free culture medium for 24 hours or 7 days (n = 16). The extracts (culture medium + components released from the cements) were applied for 24 hours to previously cultured cells (40.000 cells/cm2) in the wells of 24-well plates. Cells seeded in complete culture medium were used as a negative control. Cell viability was assessed using the MTT assay. Two samples of each cement were used for cell morphology analysis by Scanning Electron Microscopy (SEM). The extracts obtained at the 7-day period presented higher cytotoxicity compared with the 24-hour period (p 0.05). However, at the 7-day period, the experimental white MTA presented no significant difference in comparison with the other cements (p > 0.05). At the 7-day period, CER cement presented cytotoxic effects on fibroblast-like cells, similar to different MTA formulations. However, the immersion period in the culture medium influenced the cytotoxicity of the cements, which was greater for CER cement at 24 hours.

  17. Radiopacity evaluation of Portland and MTA-based cements by digital radiographic system

    Directory of Open Access Journals (Sweden)

    Alvaro Henrique Borges

    2011-06-01

    Full Text Available OBJECTIVE: The aim of the present study was to evaluate the radiopacity of Portland and MTA-based cements using the Digora TM digital radiographic system. MATERIAL AND METHODS: The performed tests followed specification number 57 from the American National Standard Institute/American Dental Association (2000 for endodontic sealing materials. The materials were placed in 5 acrylic plates, especially designed for this experiment, along with a graduated aluminum stepwedge varying from 1 to 10 mm in thickness. The set was radiographed at a 30 cm focus-object distance and with 0.2 s exposure time. After the radiographs were taken, the optical laser readings of radiographs were performed by Digora TM system. Five radiographic density readings were performed for each studied material and for each step of the aluminum scale. RESULTS: White ProRoot MTA (155.99±8.04, gray ProRoot MTA (155.96±16.30 and MTA BIO (143.13±16.94 presented higher radiopacity values (p<0.05, while white non-structural Portland (119.76±22.34, gray Portland (109.71±4.90 and white structural Portland (99.59±12.88 presented lower radiopacity values (p<0.05. CONCLUSIONS: It was concluded that MTA-based cements were the only materials presenting radiopacity within the ANSI/ADA specifications.

  18. Cytotoxic effects of new MTA-based cement formulations on fibroblast-like MDPL-20 cells

    Directory of Open Access Journals (Sweden)

    Lucas da Fonseca Roberti GARCIA

    2016-01-01

    Full Text Available Abstract The present study aimed at evaluating the cytotoxic effects of a novel cement called CER on periodontal fibroblast-like cells of mice (MDPL-20, in comparison with different formulations of Mineral Trioxide Aggregate (MTA, by means of the cell viability test (MTT and cell morphology analysis. Thirty-two round-shaped samples were fabricated with the following cements: white MTA, white and gray CER and experimental white MTA. The samples were immersed in serum-free culture medium for 24 hours or 7 days (n = 16. The extracts (culture medium + components released from the cements were applied for 24 hours to previously cultured cells (40.000 cells/cm2 in the wells of 24-well plates. Cells seeded in complete culture medium were used as a negative control. Cell viability was assessed using the MTT assay. Two samples of each cement were used for cell morphology analysis by Scanning Electron Microscopy (SEM. The extracts obtained at the 7-day period presented higher cytotoxicity compared with the 24-hour period (p 0.05. However, at the 7-day period, the experimental white MTA presented no significant difference in comparison with the other cements (p > 0.05. At the 7-day period, CER cement presented cytotoxic effects on fibroblast-like cells, similar to different MTA formulations. However, the immersion period in the culture medium influenced the cytotoxicity of the cements, which was greater for CER cement at 24 hours.

  19. Comparative Analysis of Selected Physicochemical Properties of Pozzolan Portland and MTA-Based Cements.

    Science.gov (United States)

    Dorileo, Maura Cristiane Gonçales Orçati; Villa, Ricardo Dalla; Guedes, Orlando Aguirre; Aranha, Andreza Maria Fábio; Semenoff-Segundo, Alex; Bandeca, Matheus Coelho; Borges, Alvaro Henrique

    2014-01-01

    Physicochemical properties of pozzolan Portland cement were compared to ProRoot MTA and MTA BIO. To test the pH, the samples were immersed in distilled water for different periods of time. After the pH analysis, the sample was retained in the plastic recipient, and the electrical conductivity of the solution was measured. The solubility and radiopacity properties were evaluated according to specification 57 of the American National Standard Institute/American Dental Association (ANSI/ADA). The statistical analyses were performed using ANOVA and Tukey's test at a 5% level of significance. Pozzolan Portland cement exhibited pH and electrical conductivity mean values similar to those of the MTA-based cements. The solubilities of all tested materials were in accordance with the ANSI/ADA standards. Only the MTA-based cements met the ANSI/ADA recommendations for radiopacity. It might be concluded that the pH and electrical conductivity of pozzolan Portland cement are similar to and comparable to those of MTA-based cements.

  20. MTA apical barrier: In vitro study of the use of ultrasonic vibration

    Science.gov (United States)

    Escribano-Escrivá, Begona; Manzano-Saiz, Alberto; Giner-Lluesma, Teresa; Collado-Castellanos, Nicolás; Muwaquet-Rodríguez, Susana

    2016-01-01

    Background The apexification is the first alternative treatment on a permanent tooth when, after a tooth trauma and in the presence of immature apex trauma, pulp necrosis occurs. Many studies have demonstrated the efficacy of mineral trioxide aggregate (MTA) as apical sealing material of choice in these cases, but has a degree of filtration as all other materials. The objective of this study was to analyze the seal ability of MTA on the duct walls in immature teeth unirradicular apexes, using indirect vibration. Material and Methods The study was conducted on 45 teeth divided into 3 groups: Group A or control group in which no vibration for placing the MTA was used, Group B and C or groups where indirect vibration analysis was used. All samples were immersed in methylene blue to assess filtration. After performing longitudinal cuts millimetric measuring were made of the degree of filtration, divided into 3 degrees (2mm each grade filtration). Results Results obtained confirm our hypothesis, obtaining lesser degree of filtration those groups in which indirect vibration (Groups B and C) was performed. It was shown that the degree of filtration is closely linked to the degree of adaptation. Conclusions MTA vibration offers better results in its adaptation to the canal walls, significantly reducing the degree of filtration. Key words:Apexification, MTA, filtration, indirect vibration. PMID:27398184

  1. Mixing MTA with phosphate buffered solution can improve its physical properties and increase favorable outcome

    Directory of Open Access Journals (Sweden)

    Naghmeh Meraji

    2014-01-01

    Full Text Available Introduction: Encountering environmental situations that have an adverse effect on the properties of Mineral Trioxide Aggregate (MTA is inevitable and unfortunately common. In many cases MTA does not set and the clinician is forced to apply this cement again. This occurrence may affect the outcome of endodontic treatments such as perforation repair. Therefore, strategies should be considered to overcome this matter. Various studies have been conducted that mixed several substances with MTA to reverse the adverse effects on this material but still we face this problem. The Hypothesis: In this paper, we propose a hypothesis that mixing MTA with phosphate buffered solution (PBS may reverse the adverse environmental effects and may help us overcome this clinical problem. Evaluation of the Hypothesis: PBS is a synthetic solution containing phosphate which is commonly used for mimicking in vivo situations in laboratory studies. Considering that some studies have shown that when MTA encounters tissue fluids containing phosphorous its properties improve, we suggest that mixing this cement with PBS can at least reverse the adverse effect of the environment. It should be noted that the better the properties of these cements, the better the outcome of treatment can be.

  2. Trade Agreements

    OpenAIRE

    Kowalczyk, Carsten; Riezman, Raymond

    2009-01-01

    This paper reviews the most significant recent developments in the theory of trade agreements. The paper offers an integrated approach to evaluating trade agreements, and uses the approach to present results on preferential and multilateral trade agreements. The paper identifies also several questions for further research.

  3. Crystal structure of recombinant tyrosinase-binding protein MtaL at 1.35 Å resolution.

    Science.gov (United States)

    Lai, Xuelei; Soler-Lopez, Montserrat; Ismaya, Wangsa T; Wichers, Harry J; Dijkstra, Bauke W

    2016-03-01

    Mushroom tyrosinase-associated lectin-like protein (MtaL) binds to mature Agaricus bisporus tyrosinase in vivo, but the exact physiological function of MtaL is unknown. In this study, the crystal structure of recombinant MtaL is reported at 1.35 Å resolution. Comparison of its structure with that of the truncated and cleaved MtaL present in the complex with tyrosinase directly isolated from mushroom shows that the general β-trefoil fold is conserved. However, differences are detected in the loop regions, particularly in the β2-β3 loop, which is intact and not cleaved in the recombinant MtaL. Furthermore, the N-terminal tail is rotated inwards, covering the tyrosinase-binding interface. Thus, MtaL must undergo conformational changes in order to bind mature mushroom tyrosinase. Very interestingly, the β-trefoil fold has been identified to be essential for carbohydrate interaction in other lectin-like proteins. Comparison of the structures of MtaL and a ricin-B-like lectin with a bound disaccharide shows that MtaL may have a similar carbohydrate-binding site that might be involved in glycoreceptor activity. PMID:26919530

  4. Search for the decay of nature's rarest isotope $^{\\rm {180m}}$Ta

    CERN Document Server

    Lehnert, Björn; Lutter, Guillaume; Zuber, Kai

    2016-01-01

    $^{\\rm {180m}}$Ta is the rarest naturally occurring quasi-stable isotope and the longest lived metastable state which is known. Its possible decay via the $\\beta^-$ or the electron capture channel has never been observed. This article presents a search for the decay of $^{\\rm {180m}}$Ta with an ultra low background Sandwich HPGe gamma spectrometry setup in the HADES underground laboratory. No signal is observed and improved lower partial half-life limits are set with a Bayesian analysis to $5.8\\cdot10^{16}$ yr for the $\\beta^-$ channel and $2.0\\cdot10^{17}$ yr for the electron capture channel (90% credibility). The total half-life of $^{\\rm {180m}}$Ta is longer than $4.5\\cdot10^{16}$ yr. This is more than a factor of two improvement compared to previous searches.

  5. Antimicrobial activity and pH of a endodontic sealer containing MTA

    DEFF Research Database (Denmark)

    Maliza, Amanda GA; de Andrade, Flaviana Bombarda; Arias, Marcela C;

    Plus immediately, 24 or 48 hours prior to the tests. The antimicrobial activity against Enterococcus faecalis and Candida albicans was evaluated by the direct contact and the agar diffusion methods. Calcium release was determined by atomic absorption spectrometry. The pH from solutions containing...... could completely inhibit the growth of Enterococcus faecalis and Candida albicans, but influenced microbial growth to different extent. Significantly higher calcium was released from Sealer 26, followed by Sealapex, MTA Fillapex, and AH Plus in a descending order. All investigated sealers resulted...... the sealers was measured using a pHmeter. Results: MTA Fillapex, AH Plus and Sealer 26 resulted in partial inhibition of E. faecalis, while Sealapex resulted in the highest bacterium growth. MTA Fillapex and AH Plus also inhibited to a greater extent the growth of C. albicans. None of the investigated sealers...

  6. 7 CFR 1425.5 - Confidentiality.

    Science.gov (United States)

    2010-01-01

    ... AGRICULTURE LOANS, PURCHASES, AND OTHER OPERATIONS COOPERATIVE MARKETING ASSOCIATIONS § 1425.5 Confidentiality... officers, agents, and employees of CCC and the Department of Agriculture except as required to be...

  7. 15 CFR 806.5 - Confidentiality.

    Science.gov (United States)

    2010-01-01

    ... ECONOMIC ANALYSIS, DEPARTMENT OF COMMERCE DIRECT INVESTMENT SURVEYS § 806.5 Confidentiality. Information... the customer of such person where the information supplied is identifiable as being derived from the records of such customer....

  8. 15 CFR 705.6 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ...) BUREAU OF INDUSTRY AND SECURITY, DEPARTMENT OF COMMERCE NATIONAL SECURITY INDUSTRIAL BASE REGULATIONS EFFECT OF IMPORTED ARTICLES ON THE NATIONAL SECURITY § 705.6 Confidential information. (a) Any... the investigation that would disclose national security classified information or...

  9. Expression and clinical significance of MTA-2 protein in laryngeal squamous cell carcinoma%MTA-2蛋白在喉鳞癌中的表达及其临床意义

    Institute of Scientific and Technical Information of China (English)

    霍海峰; 范宗宪; 牟嘉砾; 张爱华; 张永红

    2012-01-01

    目的:研究转移相关蛋白2(metastasis-associated protein 2,MTA-2)在喉鳞癌中的表达及其临床意义.方法:应用免疫组化检测了90例喉癌标本(其中40例为具有配对的淋巴结转移标本)中MTA-2的表达及其与患者临床病理因素之间的关系.另选30例新鲜喉鳞癌及癌旁正常喉组织用于MTA-2的mRNA和蛋白检测.结果:正常喉组织相比,MTA-2的mRNA和蛋自在喉鳞癌组织中表达显著增高,且MTA-2的阳性表达与喉鳞癌的低分化、高TNM分期及淋巴结转移密切相关(P<0.05).结论:MTA-2的阳性表达与喉鳞癌患者的不良预后显著相关,并可能是喉鳞癌新的标志物及基因治疗靶点.%Objective; To explore the expression of MTA -2( metastasis - associated protein 2) in laryngeal squa-mous cell carcinoma (LSCC) and its clinical significance. Methods; The expression of MTA -2 and its correlation with clinicopathological factors was examined in 90 cases of LSCC specimens by immunohistochemistry (including 40 cases with paired lymph node metastases lesions). The rnfiNA and protein expression of MTA - 2 were also detected in 30 cases of paired LSCC tissues and normal laryngeal tissues. Results: Compared with normal laryngeal tissues, the mRNA and protein expression of MTA - 2 were increased in LSCC tissues, and the positive expression of MTA - 2 was closely associated with poor differentiation, higher TNM stage and lymph node metastasis (P < 0. 05 ). Conclu-sion; The positive expression of MTA -2 was associated with poor prognosis of patients with LSCC, and MTA -2 may be a new biomarker and target of gene therapy.

  10. 13 CFR 120.1060 - Confidentiality of Reports, Risk Ratings and related Confidential Information.

    Science.gov (United States)

    2010-01-01

    ... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Confidentiality of Reports, Risk Ratings and related Confidential Information. 120.1060 Section 120.1060 Business Credit and Assistance SMALL BUSINESS ADMINISTRATION BUSINESS LOANS Risk-Based Lender Oversight Supervision §...

  11. An Investigation on the Histologic Responses of Periapical Tissues Following Retrofilling with Root MTA and Portland Cement Type I Versus Pro Root MTA in the Canine Teeth of Cats

    Directory of Open Access Journals (Sweden)

    D. Sharifi

    2004-12-01

    Full Text Available Statement of the Problem: Endodontic surgery if required is considered as an additive therapy after classic endodontic treatments. The most prevalent type of endodontic surgeries are apicoectomy and corrective surgeries. Type of material applied inapicoectomies is of high importance. Root end filling material should not only be biocompatible but also provide appropriate seal. Considering these findings, the subject of this paper was to compare the histologic responses of the periradicular tissues after usingRoot MTA and Portland cement, as Root end fillings, with Pro Root MTA.Purpose: The aim of the present study was to introduce a suitable material for root end filling.Materials and Methods: The canals of sixty maxillary canines of cats, after cutting the crowns and exposing the pulps, were instrumented 1 mm beyond the apex until 25 # file to develop periapical lesion after 28 days. They were then randomly divided into five groups.After apicoectomy, Pro Root MTA, Root MTA and Portland cement were placed, as root end filling materials in three experimental groups whereas the two remaining groups were considered as positive and negative controls.After 3, 6 and 12 weeks the animals were sacrificed and the specimens were stained forhistologic evaluation under light microscope. The data were submitted to statistical analyses (Fisher exact test, k2 test and one- way variance analysis.Results: No statistically significant difference was found between these three materials in cementum apposition on roots and implanted materials, fibrous capsule formation and the severity of inflammation, however, bone formation in Root MTA group was significantly less than pro Root MTA and Portland cement groups. The extent of inflammation thickness in Portland cement group was significantly less than Pro Root MTA group.Conclusion: According to these findings if long term investigations with larger sample size confirm the obtained results of the present study, Root MTA

  12. Solubility and bacterial sealing ability of MTA and root-end filling materials.

    Science.gov (United States)

    Espir, Camila Galletti; Guerreiro-Tanomaru, Juliane Maria; Spin-Neto, Rubens; Chávez-Andrade, Gisselle Moraima; Berbert, Fabio Luiz Camargo Villela; Tanomaru-Filho, Mario

    2016-04-01

    Objective To evaluate solubility and sealing ability of Mineral Trioxide Aggregate (MTA) and root-end filling materials. Material and Methods The materials evaluated were: MTA, Calcium Silicate Cement with zirconium oxide (CSC/ZrO2), and zinc oxide/eugenol (ZOE). Solubility test was performed according to ANSI/ADA. The difference between initial and final mass of the materials was analyzed after immersion in distilled water for 7 and 30 days. Retrograde cavities in human teeth with single straight root canal were performed by using ultrasonic tip CVD 9.5107-8. The cavities were filled with the evaluated materials to evaluate sealing ability using the bacterial leakage test with Enterococcus faecalis. Bacterial leakage was evaluated every 24 hours for six weeks observing the turbidity of Brain Heart infusion (BHI) medium in contact with root apex. Data were submitted to ANOVA followed by Tukey tests (solubility), and Kruskal-Wallis and Dunn tests (sealing ability) at a 5% significance level. Results For the 7-day period, ZOE presented highest solubility when compared with the other groups (p<0.05). For the 30-day period, no difference was observed among the materials. Lower bacterial leakage was observed for MTA and CSC/ZrO2, and both presented better results than ZOE (p<0.05). Conclusion MTA and CSC/ZrO2 presented better bacterial sealing capacity, which may be related to lower initial solubility observed for these materials in relation to ZOE. PMID:27119759

  13. Design of 8.0Mt/a Atmospheric and Vacuum Distillation Unit

    Institute of Scientific and Technical Information of China (English)

    Li Hejie

    2003-01-01

    The design features of 8 Mt/a atmospheric and vacuum distillation unit (Ⅲ) in Zhenhai Refiningand Chemical Company are presented and various process schemes are compared. Production practice hasproved that the main process design is advanced and reasonable and the process parameters basicallyreached design requirements.

  14. Analysis of Metal Contents in Portland Type V and MTA-Based Cements

    Directory of Open Access Journals (Sweden)

    Maura Cristiane Gonçales Orçati Dorileo

    2014-01-01

    Full Text Available The aim of this study was to determine, by Atomic Absorption Spectrometry (AAS, the concentration levels of 11 metals in Type V gray and structural white PC, ProRoot MTA, and MTA Bio. Samples, containing one gram of each tested cement, were prepared and transferred to a 100 mL Teflon tube with a mixture of 7.0 mL of nitric acid and 21 mL of hydrochloric acid. After the reaction, the mixture was filtered and then volumed to 50 mL of distilled water. For each metal, specific patterns were determined from universal standards. Arsenic quantification was performed by hydride generator. The analysis was performed five times and the data were statistically analyzed at 5% level of significance. Only the cadmium presented concentration levels of values lower than the quantification limit of the device. The AAS analysis showed increased levels of calcium, nickel, and zinc in structural white PC. Type V PC presented the greatest concentration levels of arsenic, chromium, copper, iron, lead, and manganese (P<0.05. Bismuth was found in all cements, and the lowest concentration levels were observed in Portland cements, while the highest were observed in ProRoot MTA. Both PC and MTA-based cements showed evidence of metals inclusion.

  15. Solubility and bacterial sealing ability of MTA and root-end filling materials

    Directory of Open Access Journals (Sweden)

    Camila Galletti ESPIR

    2016-04-01

    Full Text Available ABSTRACT Objective To evaluate solubility and sealing ability of Mineral Trioxide Aggregate (MTA and root-end filling materials. Material and Methods The materials evaluated were: MTA, Calcium Silicate Cement with zirconium oxide (CSC/ZrO2, and zinc oxide/eugenol (ZOE. Solubility test was performed according to ANSI/ADA. The difference between initial and final mass of the materials was analyzed after immersion in distilled water for 7 and 30 days. Retrograde cavities in human teeth with single straight root canal were performed by using ultrasonic tip CVD 9.5107-8. The cavities were filled with the evaluated materials to evaluate sealing ability using the bacterial leakage test with Enterococcus faecalis. Bacterial leakage was evaluated every 24 hours for six weeks observing the turbidity of Brain Heart infusion (BHI medium in contact with root apex. Data were submitted to ANOVA followed by Tukey tests (solubility, and Kruskal-Wallis and Dunn tests (sealing ability at a 5% significance level. Results For the 7-day period, ZOE presented highest solubility when compared with the other groups (p<0.05. For the 30-day period, no difference was observed among the materials. Lower bacterial leakage was observed for MTA and CSC/ZrO2, and both presented better results than ZOE (p<0.05. Conclusion MTA and CSC/ZrO2 presented better bacterial sealing capacity, which may be related to lower initial solubility observed for these materials in relation to ZOE.

  16. Initial Emittance Measurements of the Fermilab Linac Beam Using the MTA Beamline

    CERN Document Server

    Johnstone, C

    2012-01-01

    The MTA beam line has been specifically designed to facilitate measurements of the Fermilab Linac beam emittance and properties utilizing a long, 10m, element-free straight. Linac beam is extracted downstream of the 400-MeV electrostatic chopper located in the Booster injection line. This chopper cannot be utilized for MTA beam, and therefore the entire Linac beam pulse is directed into the MTA beamline. Pulse length manipulation is provided by the 750-keV electrostatic chopper at the upstream end of the Linac and, using this device, beam can be delivered from 8 {\\mu}sec up to the full 50 {\\mu}sec Linac pulse length. The 10 m emittance measurement straight exploits and begins at the 12' shield wall that separates the MTA Experimental Hall and beamline stub from the Linac enclosure. A quadrupole triplet has been installed upstream of the shield wall in order to focus a large, 1.5-2" (~95% width) beam through the shield wall and onto a profile monitor located at the exit of the shielding. Another profile monito...

  17. Solubility and bacterial sealing ability of MTA and root-end filling materials

    Science.gov (United States)

    ESPIR, Camila Galletti; GUERREIRO-TANOMARU, Juliane Maria; SPIN-NETO, Rubens; CHÁVEZ-ANDRADE, Gisselle Moraima; BERBERT, Fabio Luiz Camargo Villela; TANOMARU-FILHO, Mario

    2016-01-01

    ABSTRACT Objective To evaluate solubility and sealing ability of Mineral Trioxide Aggregate (MTA) and root-end filling materials. Material and Methods The materials evaluated were: MTA, Calcium Silicate Cement with zirconium oxide (CSC/ZrO2), and zinc oxide/eugenol (ZOE). Solubility test was performed according to ANSI/ADA. The difference between initial and final mass of the materials was analyzed after immersion in distilled water for 7 and 30 days. Retrograde cavities in human teeth with single straight root canal were performed by using ultrasonic tip CVD 9.5107-8. The cavities were filled with the evaluated materials to evaluate sealing ability using the bacterial leakage test with Enterococcus faecalis. Bacterial leakage was evaluated every 24 hours for six weeks observing the turbidity of Brain Heart infusion (BHI) medium in contact with root apex. Data were submitted to ANOVA followed by Tukey tests (solubility), and Kruskal-Wallis and Dunn tests (sealing ability) at a 5% significance level. Results For the 7-day period, ZOE presented highest solubility when compared with the other groups (p<0.05). For the 30-day period, no difference was observed among the materials. Lower bacterial leakage was observed for MTA and CSC/ZrO2, and both presented better results than ZOE (p<0.05). Conclusion MTA and CSC/ZrO2 presented better bacterial sealing capacity, which may be related to lower initial solubility observed for these materials in relation to ZOE. PMID:27119759

  18. Parent-Reported Homework Problems in the MTA Study: Evidence for Sustained Improvement with Behavioral Treatment

    Science.gov (United States)

    Langberg, Joshua M.; Arnold, L. Eugene; Flowers, Amanda M.; Epstein, Jeffery N.; Altaye, Mekibib; Hinshaw, Stephen P.; Swanson, James M.; Kotkin, Ronald; Simpson, Stephen; Molina, Brooke S. G.; Jensen, Peter S.; Abikoff, Howard; Pelham, William E., Jr.; Vitiello, Benedetto; Wells, Karen C.; Hechtman, Lily

    2010-01-01

    Parent-report of child homework problems was examined as a treatment outcome variable in the MTA-Multimodal Treatment Study of Children with Attention-Deficit/Hyperactivity Disorder (ADHD). Five hundred seventy-nine children ages 7.0 to 9.9 were randomly assigned to either medication management, behavioral treatment, combination treatment, or…

  19. Nine Months of Multicomponent Behavioral Treatment for ADHD and Effectiveness of MTA Fading Procedures

    Science.gov (United States)

    Arnold, L. Eugene; Chuang, Shirley; Davies, Mark; Abikoff, Howard B.; Conners, C. Keith; Elliott, Glen R.; Greenhill, Laurence L.; Hechtman, Lily; Hinshaw, Stephen P.; Hoza, Betsy; Jensen, Peter S.; Kraemer, Helena C.; Langworthy-Lam, Kristen S.; March, John S.; Newcorn, Jeffrey H.; Pelham, William E.; Severe, Joanne B.; Swanson, James M.; Vitiello, Benedetto; Wells, Karen C.; Wigal, Timothy

    2004-01-01

    We examined 9-month data from the 14-month NIMH Multimodal Treatment Study of Children with ADHD (the MTA) as a further check on the relative effect of medication (MedMgt) and behavioral treatment (Beh) for attention-deficit/hyperactivity disorder (ADHD) while Beh was still being delivered at greater intensity than at 14-month endpoint, and…

  20. Secondary Evaluations of MTA 36-Month Outcomes: Propensity Score and Growth Mixture Model Analyses

    Science.gov (United States)

    Swanson, James M.; Hinshaw, Stephen P.; Arnold, L. Eugene; Gibbons, Robert D.; Marcus, Sue; Hur, Kwan; Jensen, Peter S.; Vitiello, Benedetto; Abikoff, Howard B.: Greenhill, Laurence L.; Hechtman, Lily; Pelham, William E.; Wells, Karen C.; Conners, C. Keith; March, John S.; Elliott, Glen R.; Epstein, Jeffery N.; Hoagwood, Kimberly; Hoza, Betsy; Molina, Brooke S. G.; Newcorn, Jeffrey H.; Severe, Joanne B.; Wigal, Timothy

    2007-01-01

    Objective: To evaluate two hypotheses: that self-selection bias contributed to lack of medication advantage at the 36-month assessment of the Multimodal Treatment Study of Children With ADHD (MTA) and that overall improvement over time obscured treatment effects in subgroups with different outcome trajectories. Method: Propensity score analyses,…

  1. Push-out bond strength of MTA HP, a new high-plasticity calcium silicate-based cement.

    Science.gov (United States)

    Silva, Emmanuel Jnl; Carvalho, Nancy Kudsi; Zanon, Mayara; Senna, Plínio Mendes; DE-Deus, Gustavo; Zuolo, Mário Luis; Zaia, Alexandre Augusto

    2016-06-14

    This study was designed to investigate the resistance to dislodgment provided by MTA HP, a new high-plasticity calcium silicate-based cement. Biodentine and White MTA Angelus were used as reference materials for comparison. Three discs 1 ± 0.1 mm thick were obtained from the middle third of the roots of 5 maxillary canines. Three 0.8-mm-wide holes were drilled on the axial surface of each root disc. Standardized irrigation was performed. Then the holes were dried with paper points and filled with one of the three tested cements. The filled dental slices were immersed in a phosphate-buffered saline (PBS) solution (pH 7.2) for 7 days before the push-out assessment. The Kruskal-Wallis test was applied to assess the effect of each endodontic cement on the push-out bond strength. Mann-Whitney with Bonferroni correction was used to isolate the differences. The alpha-type error was set at 0.05. All specimens had measurable push-out values and no premature failure occurred. There were significant differences among the materials (p <0.05). The Biodentine specimens had the highest push-out bond strength values (p < 0.05). MTA HP had significantly higher bond strength than White MTA (p < 0.05). MTA HP showed better push-out bond strength than its predecessor, White MTA; however, Biodentine had higher dislodgment resistance than both MTA formulations. PMID:27305515

  2. Sealing ability of MTA, CPM, and MBPc as root-end filling materials: a bacterial leakage study.

    Science.gov (United States)

    Medeiros, Paulo Leal; Bernardineli, Norberti; Cavenago, Bruno Cavalini; Torres, Sérgio Aparecido; Duarte, Marco Antonio Hungaro; Bramante, Clovis Monteiro; Marciano, Marina Angélica

    2016-04-01

    Objectives To evaluate the sealing ability of three root-end filling materials (white MTA, CPM, and MBPc) using an Enterococcus faecalis leakage model. Material and Methods Seventy single-root extracted human teeth were instrumented and root-ends were resected to prepare 3 mm depth cavities. Root-end preparations were filled with white MTA, CPM, and MBPc cements. Enterococcus faecalis was coronally introduced and the apical portion was immersed in BHI culture medium with phenol red indicator. The bacterial leakage was monitored every 24 h for 4 weeks. The statistical analysis was performed using the Wilcoxon-Gehan test (pcalcium silicate-based cements MTA and CPM. PMID:27119763

  3. EPS Confidentiality and Integrity mechanisms Algorithmic Approach

    CERN Document Server

    Orhanou, Ghizlane; Bentaleb, Youssef; Laassiri, Jalal

    2011-01-01

    The Long Term Evolution of UMTS is one of the latest steps in an advancing series of mobile telecommunications systems. Many articles have already been published on the LTE subject but these publications have viewed the subject from particular perspectives. In the present paper, a different approach has been taken. We are interested in the security features and the cryptographic algorithms used to ensure confidentiality and integrity of the transmitted data. A closer look is taken to the two EPS confidentiality and integrity algorithms based on the block cipher algorithm AES: the confidentiality algorithm EEA2 and the integrity algorithm EIA2. Furthermore, we focused on the implementation of both algorithms in C language in respect to the specifications requirements. We have tested our implementations according to the testsets given by the 3rd Generation Partnership Project (3GPP) implementation document. Some examples of the implementation tests are presented bellow.

  4. 28 CFR 50.23 - Policy against entering into final settlement agreements or consent decree that are subject to...

    Science.gov (United States)

    2010-07-01

    ... judicial proceedings (see 28 CFR 50.9) and the Freedom of Information Act (see Memorandum for Heads of... settlement agreements or consent decree that are subject to confidentiality provisions and against seeking or... or consent decree that are subject to confidentiality provisions and against seeking or concurring...

  5. Mta-1与Ezrin在膀胱移行细胞癌组织中的表达及其相关性%Mta-1 and Ezrin Expression in Bladder Transitional Cell Carcinoma and Their Correlation

    Institute of Scientific and Technical Information of China (English)

    李春生

    2010-01-01

    目的 探讨Mta-1与Ezrin在膀胱移行细胞癌组织中的表达及其相关性.方法 免疫组化方法检测82例BTCC组织和20例正常膀胱组织中Mta-1及Ezrin的表达,分析两者与BTCC的分级、分期、侵袭转移及复发问的关系及Mta-1表达与Ezrin的相关性.结果 82例BTCC组织中Mta-1阳性表达率显著高于正常膀胱组织(x2=11.39,P<0.01),Ezrin阻性表达率显著高于正常膀胱组织(x2=5.62,P<0.05);随着BTCC临床分期及病理分级的升高,Mta-1的阳性表达率增高,肿瘤复发、肿瘤转移组的Mta-1的阳性表达率分别明显高于无复发组和无转移组(P<0.01);Ezrin蛋白与BTCC临床分期、复发、淋巴结转移有关(P<0.05);82例膀胱癌标本中Mta-1与Ezrin蛋白表达呈正相关(rs=0.853,P<0.05).结论 Mta-1及Ezrin可以作为BTCC预测转移和判断预后的生物学标志物,两者的表达增高在BTCC的发生、发展过程中起协同作用.

  6. Altered Apical Morphology (Reverse Architecture): Use of Indirect Ultrasonic Technique for Orthograde MTA Placement in Maxillary Premolars

    Science.gov (United States)

    Sonali, Kapoor; Suresh, Agrawal Vineet; Abhishek, Patel; Jenish, Patel

    2016-01-01

    Aim. To report the management and orthograde technique of MTA placement in case of reverse architecture maxillary premolars. Summary. Two cases of 17-year-old and 21-year-old female patients were referred to endodontic speciality for management of maxillary premolar having reverse architecture with wide immature open apex like a bell mouth. In both the cases, after control of intraradicular infection, it was decided to use MTA for apexification and obturation of canals. Orthograde placement of MTA is a challenging procedure in terms of length control and condensation especially in divergent irregular reverse architecture wide open apex. A novel technique with the help of finger plugger, sterilized paper point, and ultrasonic agitation for 3D compaction of MTA at apical reverse architecture was used. Thickening of the canal wall and complete apical closure were confirmed one year after the treatment. PMID:27313910

  7. Las koerad hauguvad, karavan liigub ikka edasi ehk Maanteeamet ja MTA "ruulivad" vaatamata Riigikohtu juhistele edasi / Vahur Kivistik, Janar Urres

    Index Scriptorium Estoniae

    Kivistik, Vahur

    2016-01-01

    Riigikohtu lahendist 3-3-1-69-15 seoses Maksu- ja Tolliameti (MTA) ja Maanteeameti (MNT) koostööga eesmärgiga pidurdada 2009. a toodetud ja uuemate autode maaletoomisel toimuvaid käibemaksupettusi

  8. Methanol:coenzyme M methyltransferase from Methanosarcina barkeri -- substitution of the corrinoid harbouring subunit MtaC by free cob(I)alamin.

    Science.gov (United States)

    Sauer, K; Thauer, R K

    1999-05-01

    Methyl-coenzyme M formation from coenzyme M and methanol in Methanosarcina barkeri is catalysed by an enzyme system composed of three polypeptides MtaA, MtaB and MtaC, the latter of which harbours a corrinoid prosthetic group. We report here that MtaC can be substituted by free cob(I)alamin which is methylated with methanol in an MtaB-catalysed reaction and demethylated with coenzyme M in an MtaA-catalysed reaction. Methyl transfer from methanol to coenzyme M was found to proceed at a relatively high specific activity at micromolar concentrations of cob(I)alamin. This finding was surprising because the methylation of cob(I)alamin catalysed by MtaB alone and the demethylation of methylcob(III)alamin catalysed by MtaA alone exhibit apparent Km for cob(I)alamin and methylcob(III)alamin of above 1 mm. A possible explanation is that MtaA positively affects the MtaB catalytic efficiency and vice versa by decreasing the apparent Km for their corrinoid substrates. Activation of MtaA by MtaB was methanol-dependent. In the assay for methanol:coenzyme M methyltransferase activity cob(I)alamin could be substituted by cob(I)inamide which is devoid of the nucleotide loop. Substitution was, however, only possible when the assays were supplemented with imidazole: approximately 1 mm imidazole being required for half-maximal activity. Methylation of cob(I)inamide with methanol was found to be dependent on imidazole but not on the demethylation of methylcob(III)inamide with coenzyme M. The demethylation reaction was even inhibited by imidazole. The structure and catalytic mechanism of the MtaABC complex are compared with the cobalamin-dependent methionine synthase. PMID:10215883

  9. miR-125a-3p targets MTA1 to suppress NSCLC cell proliferation, migration, and invasion.

    Science.gov (United States)

    Zhang, Hong; Zhu, Xiaoxia; Li, Na; Li, Dianhe; Sha, Zhou; Zheng, Xiaokang; Wang, Haofei

    2015-07-01

    Metastasis-associated gene 1 (MTA1) is associated with cell growth, metastasis, and survival in non-small-cell lung cancer (NSCLC). Several previous reports have demonstrated that microRNAs affect gene expression through interaction between their seed region and the 3'-untranslated region of the target mRNA, resulting in post-transcriptional regulation. The aim of this study was to identify miRNAs that suppress malignancy in NSCLC cells by targeting MTA1. Two human NSCLC cell lines were analyzed for the expression of MTA1 by quantitative RT-PCR and western blotting after transfection with MTA1 mimics. A luciferase reporter assay was established to test the direct connection between MTA1 and its upstream miRNAs. Cell proliferation was assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, 5-ethynyl-2'-deoxyuridine analysis, and colony formation assay. Cell migration and invasive capacity were evaluated by wound-healing assay and transwell assay. The miRNA/MTA1 axis was also probed by quantitative RT-PCR and western blotting in samples from eight NSCLC patients. Among the candidate miRNAs, miR-125a-3p was shown to post-transcriptionally regulate MTA1 in NSCLC cells. These data were reinforced by the luciferase reporter assay, in addition to the demonstration that MTA1 is inversely correlated with miR-125a-3p in NSCLC tissues. Furthermore, miR-125a-3p was found to inhibit NSCLC cell proliferation, migration, and invasion, through the same mechanisms of down-regulated MTA1. Our report demonstrates that miR-125a-3p inhibits the proliferation, migration, and invasion of NSCLC cells through down-regulation of MTA1, indicating the role of the miR-125a-3p/MTA1 axis in NSCLC, and may provide novel insight into the molecular mechanisms underpinning the disease and potential therapeutic targets. PMID:25998575

  10. 40 CFR 716.55 - Confidentiality claims.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 30 2010-07-01 2010-07-01 false Confidentiality claims. 716.55 Section 716.55 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES CONTROL... for commercial distribution (including for test marketing purposes and for use in research...

  11. 28 CFR 0.29f - Confidentiality.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Confidentiality. 0.29f Section 0.29f Judicial Administration DEPARTMENT OF JUSTICE ORGANIZATION OF THE DEPARTMENT OF JUSTICE 4-Office of the... investigation, disclose the identity of an employee who submits a complaint to the OIG without the...

  12. 42 CFR 59.11 - Confidentiality.

    Science.gov (United States)

    2010-10-01

    ... PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GRANTS GRANTS FOR FAMILY PLANNING SERVICES Project Grants for Family Planning Services § 59.11 Confidentiality. All information as to personal facts and circumstances obtained by the project staff about individuals receiving services must be...

  13. 46 CFR 502.405 - Confidentiality.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 9 2010-10-01 2010-10-01 false Confidentiality. 502.405 Section 502.405 Shipping... integrity of dispute resolution proceedings in general by reducing the confidence of parties in future cases... integrity of dispute resolution proceedings in general by reducing the confidence of parties in future...

  14. 7 CFR 987.67 - Confidential information.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential information. 987.67 Section 987.67... information. All data or other information constituting a trade secret or disclosing a trade position or... the Committee and information which would reveal the circumstances of a single handler shall...

  15. Confidentiality of Accounting Academics: Consequences of Nonconformity

    Science.gov (United States)

    Amponsah, Emmanuel B.; Boateng, Peter Agyekum; Onuoha, Luke N.

    2016-01-01

    This paper examined ways by which nonconformity to confidentiality among accounting academics could lead to increased-recruitment-and-legal-costs to their employing universities in Ghana that offered accounting degree programmes. With a cross-sectional design, data collected from 1,225 accountants analysed via Cronbach's alpha,…

  16. Agreement Highlights

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Chen Yunlin, President of the mainland’s Association for Relations Across the Taiwan Straits and Chiang Pinkung, Chairman of Taiwan-based Straits Exchange Foundation, signed agreements on direct air, shipping and postal services and food safety cooperation during their summit in Taipei on November 4. Direct Flights——The two sides agree to launch a cargo charter flight service between two mainland terminals, Pudong in Shanghai and Guangzhou airports, and two Taiwan ones, Taoyuan and Kaohsiung.

  17. Coke Oven Gas Based Methanol Production Capacity Reached 1.2 Mt/a in China

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ Coke oven gas is one of the main byproducts of coke chemicals industry.One ton of coke formed can generate 430 m3of coke oven gas.Adoption of appropriate chemical processing method can convert methane contained in the coke oven gas into CO that can be further converted into methanol.It is learned that currently China has constructed and commissioned ten projects for manufacture of methanol fromcoke oven gas with the total production capacity reaching 1.2 Mt/a methanol.More than twenty coke gas-to-methanol units are under construction or in the stage of project design with their overall production capacity reaching nearly 3.0 Mt/a methanol.Relevant experts have indicated that the enterprises provided with coke production lines are capable of constructing coke gas-to-methanol projects to realize coproduction of coke and methanol while utilizing their own coke gas resources.

  18. Deep-Cut Vacuum Distillation in the 10 Mt/a CDUNDU

    Institute of Scientific and Technical Information of China (English)

    Lin Zhuwei; Mao Fuzhong; Jiang Bing; Chen Kaibei; Chi Ling; Yan Chun

    2009-01-01

    This article introduces the concepts relating to deep-cut vacuum distillation and its suitability, and analyzes the deep-cut vacuum distillation technique licensed by the KBC Advanced Technologies to the 10 Mt/a CDUNDU of the Qingdao refinery and makes comparison on the test run data after commissioning of the distillation unit. The test results have confirmed that the operation of the CDU/VDU had reached the expected goal to achieve good social and economic benefits.

  19. Particle size of a new endodontic cement compared to Root MTA and calcium hydroxide

    OpenAIRE

    Soheilipour, Elham; Kheirieh, Sanam; Madani, Majid; Akbarzadeh Baghban, Alireza; Asgary, Saeed

    2009-01-01

    INTRODUCTION: Particle size and distribution can influence the properties of materials. This study analyzed and compared the particle size of Root MTA, calcium hydroxide (CH), and a new endodontic cement called calcium enriched material (CEM). MATERIALS AND METHODS: The particle size of each material was analyzed three times using 0.05 mg of test material with a particle size analyzer. The particle size distribution ranges, the cumulative percentage and the mean of particle sizes were calcula...

  20. Effect of MTA-based sealer on the healing of periapical lesions

    Directory of Open Access Journals (Sweden)

    Joao Eduardo GOMES-FILHO

    2013-06-01

    Full Text Available Some manufacturers have recently added specific components to improve the ease of handling and insertion material properties of MTA in order to create MTA-based sealers. Objective The aim of this study was to evaluate the healing of periapical lesions in canine teeth after a single session of endodontic treatment with MTA Fillapex® compared with Sealapex® or Endo-CPM-Sealer®. Material and Methods Sixty-two root canals were performed on two 1-year-old male dogs. After coronal access and pulp extirpation, the canals were exposed to the oral cavity for 6 months in order to induce periapical lesions. The root canals were prepared, irrigated with a solution of 2.5% sodium hypochlorite and filled with gutta-percha and different sealers, according to the following groups: 1 Sealapex®; 2 Endo-CPM-Sealer®; and 3 MTA Fillapex®. Some teeth with periapical lesions were left untreated for use as positive controls. Healthy teeth were used as negative controls. After 6 months, the animals were sacrificed and serial sections from the roots were prepared for histomorphologic analysis and stained with hematoxylin and eosin and the Brown and Brenn technique. The lesions were scored according to pre-established histomorphologic parameters and the scores statistically analyzed using the Kruskal-Wallis test. Results All 3 materials produced similar patterns of healing (p>0.05; in particular, persistent inflammation and absence of complete periapical tissue healing were consistently noted. Conclusions Preparation of the infected root canals followed by filling with the materials studied was insufficient to provide complete healing of the periapical tissues.

  1. Endodontic treatment for necrotic immature permanent teeth using MTA and calcium hydroxide. A retrospective study

    Directory of Open Access Journals (Sweden)

    Fabio de Almeida Gomes

    2013-06-01

    Full Text Available Introduction: Endodontic treatment of young permanent teeth with incomplete root formation and necrotic pulp has been a challenge for the dentist. It is necessary to induce the formation of apical barrier (apical plug, enabling the complete root canal filling. Objective: This retrospective clinical study compared the protocols for treatment of teeth with incomplete root formation, using calcium hydroxide (CH or mineral trioxide aggregate (MTA. Material and methods: 28 patients with incomplete root formation have undergone root canal treatments in the period from 2000 to 2009 were selected. The procedures for cleaning, shaping and intracanal medication (CH paste were performed in a standardized manner. In 13 patients, after using the CH paste (14 days, apical plugs with MTA were made. In the remaining 15 teeth monthly exchanges with CH paste were executed until it was observed radiographically the formation of the apical barrier. In all cases the canals were filled conventionally with gutta-percha and sealer. Initially, follow-ups were made on a quarterly and semiannually at the end of first year. Results: All apical lesions showed apical healing between 4 and 13 months after starting treatment. There was not noted the continuing process of root formation. Conclusion: It was concluded that the treatment of teeth with incomplete root formation and necrotic pulp with the use of MTA as apical plug has the same clinical results compared with the use of CH, with the advantage of less clinical time.

  2. Evaluation of physico-chemical properties of Portland cements and MTA

    Directory of Open Access Journals (Sweden)

    Jorge Luis Gonçalves

    2010-09-01

    Full Text Available The purpose of this study was to evaluate the hydrogenionic potential and electrical conductivity of Portland cements and MTA, as well as the amount of arsenic and calcium released from these materials. In Teflon molds, samples of each material were agitated and added to plastic flasks containing distilled water for 3, 24, 72 and 168 h. The results were analyzed with a Kruskal-Wallis non-parametric test for global comparisons and a Dunn-Tukey test for pairwise comparisons. The results revealed no significant differences in the pH of the materials (p > 0.05. The electrical conductivity of the cements were not statistically different (p > 0.05. White non-structural cement and MTA BIO released the largest amount of calcium ions into solution (p 0.05. The results indicated that the physico-chemical properties of Portland cements and MTA were similar. Furthermore, all materials produced an alkaline environment and can be considered safe for clinical use because arsenic was not released. The electrical conductivity and the amount of calcium ions released into solution increased over time.

  3. Comparative evaluation of radiopacity of MTA Fillapex® endodontic sealer through a digital radiograph system

    Directory of Open Access Journals (Sweden)

    Silvya Aparecida Vanso Bicheri

    2013-06-01

    Full Text Available Introduction: The radiograph represents one of the evaluation tools of the endodontic procedure. Therefore, radiopacity is an essential property of filling materials. Objective: To evaluate the MTA Fillapex® radiopacity, as compared to that of Sealer26®, Sealapex® and AH Plus®. Material and methods: Five specimens were prepared from each endodontic sealer, which were then positioned in the digital sensor (Kodak RVG 6100 – Digital Radiography System and radiographed with a Kodak 2200 Intraoral Device Rx System, operating at 70 Kvp, 10 mV, with an exposition time of 0.071 tenth of second and a distance of 20 cm from the sensor. The radiopacity was assessed using the software Image Tool 3.0, which determines gray shades ranging from 0 to 255 pixels. For statistical analysis, ANOVA test was used, followed by Tukey’s test at a significance level of 5%. Results: The MTA Fillapex® presented the lowest radiopacity between all tested sealers, while AH Plus® was the most radiopaque one. Sealapex® and Sealer 26® showed intermediate radiopacity and statistically did not differ from each other. Conclusion: MTA Fillapex® presented intermediate radiopacity. When compared with AH Plus®, Sealer 26® and Sealapex® endodontic sealers, it exhibited the smallest result.

  4. Agreement technologies

    CERN Document Server

    Ossowski, Sascha

    2013-01-01

    More and more transactions, whether in business or related to leisure activities, are mediated automatically by computers and computer networks, and this trend is having a significant impact on the conception and design of new computer applications. The next generation of these applications will be based on software agents to which increasingly complex tasks can be delegated, and which interact with each other in sophisticated ways so as to forge agreements in the interest of their human users. The wide variety of technologies supporting this vision is the subject of this volume. It summarises

  5. Efectividad del M.T.A en el manejo no quirúrgico de perforaciones apicales

    Directory of Open Access Journals (Sweden)

    José Elias Flórez Ariza

    2013-11-01

    Full Text Available Title: MTA effectiveness in not surgical treatment of apical perforations.ResumenLas perforaciones endodónticas son aperturas artificiales que resultan en la comunicación del sistema de conductos radiculares con los tejidos perirradicularres o con la cavidad bucal. Estas son complicaciones indeseables que pueden ocurrir durante cualquier etapa del tratamiento de conductos, o durante la preparación del espacio para perno. Aún cuando también pueden ser producto de caries o procesos resortivos, la mayoría de las perforaciones son realizadas de forma iatrogénica. El manejo terapéutico de perforaciones radiculares a lo largo de la historia es un punto crítico y centro de investigaciones constantes en busca del desarrollo de los materiales idóneos para el sellado de las mismas, pero es el Mineral Trióxido Agregado (MTA el material que por sus propiedades físicas y bioquímicas, tales como biocompatibilidad, y regenerativo de hueso, cemento y de ligamento periodontal, el mayormente utilizado como garantía de éxito en dichos procedimientos. El presente caso muestra el éxito no quirúrgico obtenido a partir del sellado de una perforación apical contaminada, utilizando MTA en la zona de la afección y el relleno complementario con gutapercha termoplástica en un diente antero superior. (DUAZARY 2013 No. 1, 56 - 61.AbstractThe Endodontic perforations are artificial openings that result in the communication of the root canal system with the perirradicular tissues or oral cavity. These are undesirable complications that can occur during any stage of root canal treatment, or during the preparation of the space for the bolt. Although they can be produced by cavities or resorptive processes, the majority of the perforations are made iatrogenically. The therapeutic management of root perforations throughout history has been a critical and ongoing investigation topic in search of the development of suitable materials for their sealing, but the

  6. Bioactivity, physical and chemical properties of MTA mixed with propylene glycol

    Directory of Open Access Journals (Sweden)

    Vaishali Prakash NATU

    2015-08-01

    Full Text Available AbstractObjective To investigate the physical (setting time, hardness, flowability, microstructure and chemical (pH change, calcium release, crystallinity properties and the biological outcomes (cell survival and differentiation of mineral trioxide aggregate (MTA mixed using different proportions of propylene glycol (PG and water.Material and Methods White MTA was mixed with different water/PG ratios (100/0, 80/20 and 50/50. Composition (XRD, microstructure (SEM, setting time (ASTM C266-13, flowability (ANSI/ADA 57-2000, Knoop hardness (100 g/10 s and chemical characteristics (pH change and Ca2+ release for 7 days were evaluated. Cell proliferation, osteo/odontoblastic gene expression and mineralization induced by MTA mixed with PG were evaluated. MTA discs (5 mm in diameter, 2 mm thick were prepared and soaked in culture medium for 7 days. Next, the discs were removed and the medium used to culture dental pulp stem cells (DPSC for 28 days. Cells survival was evaluated using MTS assay (24, 72 and 120 h and differentiation with RT-PCR (ALP, OCN, Runx2, DSPP and MEPE and alizarin red staining (7 and 14 days. Data were analysed using one-way ANOVA and Tukey’s post-hoc analysis (a=0.05.Results The addition of PG significantly increased setting time, flowability and Ca2+ release, but it compromised the hardness of the material. SEM showed that 50/50 group resulted porous material after setting due to the incomplete setting reaction, as shown by XRD analysis. The addition of PG (80/20 and 50/50 was not capable to improve cell proliferation or to enhance gene expression, and mineralized deposition of DPSC after 7 and 14 days as compared to the 100/0.Conclusion Except for flowability, the addition of PG did not promote further improvements on the chemical and physical properties evaluated, and it was not capable of enhancing the bioactivity of the MTA.

  7. Down-regulation of MTA1 protein leads to the inhibition of migration, invasion, and angiogenesis of non-small-cell lung cancer cell line

    Institute of Scientific and Technical Information of China (English)

    Shuhai Li; Hui Tian; Weiming Yue; Lin Li; Cun Gao; Libo Si; Wenjun Li

    2013-01-01

    Metastasis-associated protein 1 (MTA1) high expression has been detected in a wide variety of human aggressive tumors and plays important roles in the malignant biological behaviors such as invasion,metastasis,and angiogenesis.However,the specific roles and mechanisms of MTA1 protein in regulating the malignant behaviors of non-small-cell lung cancer (NSCLC) cells still remain unclear.To elucidate the detailed functions of MTA1 protein,we down-regulated the MTA1 protein expression in NSCLC cell line by RNA interference (RNAi) in vitro,and found that down-regulation of MTA1 protein significantly inhibited the migration and invasion potentials of 95D cells.Further research revealed that down-reguiation of MTA1 protein significantly decreased the activity of matrix metalloproteinase-9,which could be the mechanism responsible for the inhibition of 95D cells migration and invasion.In addition,the tube formation assay demonstrated that the number of complete tubes induced by the conditioned medium of MTA1-siRNA 95D cells was significantly smaller than that of 95D cells.These findings demonstrate that MTA1 protein plays important roles in regulating the migration,invasion,and angiogenesis potentials of 95D cells,suggesting that MTA1 protein down-regulation by RNAi might be a novel therapeutic approach to inhibit the progression of NSCLC.

  8. 膀胱移行细胞癌Mta-1基因与蛋白表达及其临床意义%Mta-1 expression and clinical significance in bladder transitional cell carcinoma

    Institute of Scientific and Technical Information of China (English)

    唐正严; 祖雄兵; 齐琳; 叶章群; 周四维

    2006-01-01

    目的:检测膀胱移行细胞癌(BTCC)中Mta-1mRNA与蛋白表达,分析其与BTCC临床分期、病理分级、转移及复发的关系.方法:原位杂交、免疫组化方法检测42例BTCC组织Mta-1mRNA与蛋白的表达;CD34标记血管内皮细胞,计数肿瘤组织微血管密度(MVD);结合临床病理资料,分析Mta-1与BTCC的侵袭转移、血管生成及复发间的关系.结果:①Mta 1mRNA与蛋白在BTCC中高度表达,其表达阳性率分别为78.6%、73.8%,与正常组织比较差异有统计学意义(P<0.01),且随BTCC临床分期及病理分级的升高而增加,肿瘤复发组高于无复发组,肿瘤转移组高于无转移组(P<0.05).②经非参数相关分析发现,Mta-1蛋白与Mta-1 mRNA表达呈高度正相关,Rs为0.945,P=0.000;CD34标染的微血管密度(MVD)与Mta-1mRNA与蛋白表达亦呈正相关,相关系数分别为0.712、0.683,P=0.000.结论:①Mta-1在膀胱移行细胞癌中高度表达,并随着肿瘤临床分期和病理分级的升高而增加,与肿瘤的转移及复发密切相关.②Mta-1参与膀胱移行细胞癌的侵袭、转移,可能与促进血管生成有关.

  9. MTA-1和Ezrin在乳腺癌组织中的表达及其相关性探讨%Expression of MTA-1 and Ezrin and theirs correlation with clinical and pathology in breast cancer

    Institute of Scientific and Technical Information of China (English)

    黄俊辉; 蒋骑; 郭旭辉; 何璇; 张轶; 张曦蓓

    2009-01-01

    目的 探讨肿瘤转移相关基因MTA-1和细胞骨架连结蛋白Ezrin在乳腺癌组织中的表达及两者之间的相关性和与乳腺癌临床病理的关系.方法 分别应用分子原位杂交及免疫组织化学sP法检测80例乳腺癌组织和15例正常乳腺组织中MTA-1 mRNA、Ezrin蛋白的表达,分析两者之间的相关性及与乳腺癌患者病理类型、年龄、临床分期、淋巴结转移等参数的关系.结果 正常乳腺组织MTA-1 mR.NA(13.3%)、Ezrin蛋白(20.0%)的表达率明显低于乳腺癌组织中MTA-1 mRNA(66.2%)和Ezrin蛋白(68.7%)的表达率,P<0.05;MTA-1 mRNA与Ezrin蛋白的表达呈正相关(r=0.634,P=0.000);MTA-1 mRNA和Ezrin蛋白在乳腺癌中的表达与肿瘤临床分期和淋巴结转移状态相关,P值均<0.05;与患者年龄、肿瘤大小、病理类型无相关性,P值均>0.05.MTA-1+/Ezrin+组的无病生存率低于MTA-1-/Ezdn- 组(X2=7.610,P=0.006).结论 提示MTA-1和Ezrin在肿瘤转移中具有协同作用,高表达组患者的临床预后差与肿瘤淋巴转移有关.

  10. Data Confidentiality in Mobile Ad hoc Networks

    CERN Document Server

    Aldabbas, Hamza; Janicke, Helge; Al-Bayatti, Ali; 10.5121/ijwmn.2012.4117

    2012-01-01

    Mobile ad hoc networks (MANETs) are self-configuring infrastructure-less networks comprised of mobile nodes that communicate over wireless links without any central control on a peer-to-peer basis. These individual nodes act as routers to forward both their own data and also their neighbours' data by sending and receiving packets to and from other nodes in the network. The relatively easy configuration and the quick deployment make ad hoc networks suitable the emergency situations (such as human or natural disasters) and for military units in enemy territory. Securing data dissemination between these nodes in such networks, however, is a very challenging task. Exposing such information to anyone else other than the intended nodes could cause a privacy and confidentiality breach, particularly in military scenarios. In this paper we present a novel framework to enhance the privacy and data confidentiality in mobile ad hoc networks by attaching the originator policies to the messages as they are sent between nod...

  11. Breaking patient confidentiality: comparing Chilean and French viewpoints regarding the conditions of its acceptability

    Directory of Open Access Journals (Sweden)

    Cecilia Olivari

    2011-01-01

    Full Text Available The study examined the conditions under which lay people and health professionals living in Chile find it acceptable for a physician to break confidentiality to protect the wife of a patient with a sexually transmitted disease (STD. One hundred sixty-nine lay persons, 10 physicians, 17 psychologists, and 11 paramedical professionals indicated the acceptability of breaking confidentiality in 48 scenarios. The scenarios were all possible combinations of five factors: disease severity (severe, lethal; time taken to discuss this with the patient (little time, much time; patient’s intent to inform his spouse about the disease (none, one of these days, immediately; patient’s intent to adopt protective behaviors (no intent, intent; and physician’s decision to consult an STD expert (yes, no, 2 x 2 x 3 x 2 x 2. The study also compared Chilean and French views, using data gathered previously in France. A cluster analysis conducted on the overall set of raw data revealed groups of participants that found breaking confidentiality “always acceptable” (9%, requiring “consultation with an expert” (5%, “depending on the many circumstances” (70%, and “never acceptable” (11%”. Despite clear differences in legislation and official codes of ethics between their two countries, Chilean and French lay people did not differ much in their personal convictions regarding the circumstances in which patient confidentiality can be broken or must not be broken. By contrast, Chilean physicians, in agreement with their code of ethics, were much less supportive than French physicians of complete respect of patient confidentiality in all cases

  12. Methanol:coenzyme M methyltransferase from Methanosarcina barkeri--identification of the active-site histidine in the corrinoid-harboring subunit MtaC by site-directed mutagenesis.

    Science.gov (United States)

    Sauer, K; Thauer, R K

    1998-05-01

    The enzyme system catalyzing the formation of methyl-coenzyme M from methanol and coenzyme M in Methanosarcina barkeri is composed of the three different polypeptides MtaA, MtaB and MtaC of which MtaC harbors a corrinoid prosthetic group. The heterologous expression of mtaA and mtaB in Escherichia coli has been described previously. We report here on the overproduction of the apoprotein of MtaC in E. coli, on its reconstitution to the active holoprotein with either cob(II)alamin or methyl-cob(III)alamin, and on the properties of the reconstituted corrinoid protein. Reconstituted MtaC was found to contain 1 mol bound cobamide/mol. EPR spectroscopic evidence is presented for a His residue as an axial ligand to Co2+ of the bound corrinoid. This active-site His was identified by site-directed mutagenesis as His136 in the MtaC sequence that contains four His residues. The reconstituted MtaC, in the cob(I)amide oxidation state, was methylated with methanol in the presence of MtaB and demethylated with coenzyme M in the presence of MtaA. In the presence of both MtaB and MtaA, methyl-coenzyme M was formed from methanol and coenzyme M at specific rates comparable to those determined for the enzyme system purified from M. barkeri. M. barkeri contains an isoenzyme of MtaA designated MtbA. The isoenzyme reacted with MtaC with only 2.5% of the activity of MtaA. PMID:9654068

  13. Confidential benchmarking based on multiparty computation

    DEFF Research Database (Denmark)

    Damgård, Ivan Bjerre; Damgård, Kasper Lyneborg; Nielsen, Kurt;

    ' and the consultancy house's data stays confidential, the banks as clients learn nothing but the computed benchmarking score. In the concrete business application, the developed prototype help Danish banks to find the most efficient customers among a large and challenging group of agricultural customers with too much...... state during the computation. We ran the system with two servers doing the secure computation using a database with information on about 2500 users. Answers arrived in about 25 seconds....

  14. Obscuring provenance confidential information via graph transformation

    OpenAIRE

    Hussein, Jamal; Moreau, Luc; Sassone, Vladimiro

    2015-01-01

    Provenance is a record that describes the people, institutions, entities, and activities involved in producing, influencing, or delivering a piece of data or a thing. In particular, the provenance of information is crucial in deciding whether information is to be trusted. PROV is a recent W3C specification for sharing provenance over the Web. However, provenance records may expose confidential information, such as identity of agents or specific attributes of entities or activities. It is ther...

  15. A study of confidential unit exclusion.

    Science.gov (United States)

    Kean, C A; Hsueh, Y; Querin, J J; Keating, L J; Allensworth, D D

    1990-10-01

    The effectiveness of the confidential unit exclusion (CUE) procedure recommended by the Food and Drug Administration has been questioned by the blood banking community. The purpose of this study was to determine whether donors were informing the blood center correctly regarding the disposition (transfuse or do not transfuse) of their donated blood. A letter explaining the confidential study and requesting permission to send the participant a questionnaire noting his or her self-exclusion choice was mailed to 230 donors who had chosen transfuse and 276 donors who had chosen do not transfuse. After consent was obtained, participants were sent a second packet and asked to indicate whether they had chosen correctly and, if not, to identify reasons for that incorrect choice. A seven-word terminology quiz made up of words from the CUE form was also enclosed. All participants who had chosen transfuse indicated that this was the correct choice. Approximately 50 percent of those who had chosen do not transfuse indicated that this was an incorrect choice; the most common reason was that "I was not paying attention." The most frequently misunderstood term was "confidential." Donors who chose do not transfuse had a significantly higher rate of error on the terminology quiz (p less than 0.01) than did those who chose transfuse. PMID:2219257

  16. Data Confidentiality in Mobile Ad hoc Networks

    Directory of Open Access Journals (Sweden)

    Hamza Aldabbas

    2012-03-01

    Full Text Available Mobile ad hoc networks (MANETs are self-configuring infrastructure-less networks comprised of mobile nodes that communicate over wireless links without any central control on a peer-to-peer basis.These individual nodes act as routers to forward both their own data and also their neighbours’ data by sending and receiving packets to and from other nodes in the network. The relatively easy configuration and the quick deployment make ad hoc networks suitable the emergency situations (such as human or natural disasters and for military units in enemy territory. Securing data dissemination between these nodes in such networks, however, is a very challenging task. Exposing such information to anyone else other than the intended nodes could cause a privacy and confidentiality breach, particularly in military scenarios. In this paper we present a novel framework to enhance the privacy and data confidentiality in mobile ad hoc networks by attaching the originator policies to the messages as they are sent between nodes. We evaluate our framework using the Network Simulator (NS-2 to check whether the privacy and confidentiality of the originator are met. For this we implemented the Policy Enforcement Points (PEPs, as NS-2 agents that manage and enforce the policies attached to packets at every node in the MANET.

  17. Improved Message Authentication and Confidentiality Checking

    International Nuclear Information System (INIS)

    The most confusing areas of the secured network communications are the message authentication and confidentiality checking. The attacks and the counter measures have become so convoluted that the users in this area begin to account for all contingencies. Two session-key generation techniques are used here to generate two separate session keys K1 and K2; and both the sender and the reveiver share these keys for higher degree of authentication and confidentiality. For this, the message is first encrypted by the key K1, and then the intermediary message authenticatin code (MAC) is generated by encrypting the encrypted message using the key K2. Then, the encrypted message and the intermediary MAC is again encrypted by using the K2 and concatenated with the encrypted message and sent to the destination. At the receiving end, first, the received ciphertext is encrypted by using key K2 and compared to the received MAC. The received ciphertext again is decrypted by the key K2 and compared with the first decrypted MAC twice by the key K2. The plaintext is obtained by decrypting the received ciphertext first by K2 and then by K1, using the corresponding decryption techniques respectively. The encryption techniques with key K2 provides the authentication and with key K1 provides the confidentiality checking of the transmitted message. The developed technique can be applied to both academic and commercial applications in online or offline electronic transactions for security.(authors)

  18. Practical State Machine Replication with Confidentiality

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Haibin [University of North Carolina, Chapel Hill

    2016-01-01

    We study how to enable arbitrary randomized algorithms in Byzantine fault-tolerant (BFT) settings. We formalize a randomized BFT protocol and provide a simple and efficient construction that can be built on any existing BFT protocols while adding practically no overhead. We go one step further to revisit a confidential BFT protocol (Yin et al., SOSP '03). We show that their scheme is potentially susceptible to safety and confidentiality attacks. We then present a new protocol that is secure in the stronger model we formalize, by extending the idea of a randomized BFT protocol. Our protocol uses only efficient symmetric cryptography, while Yin et al.'s uses costly threshold signatures. We implemented and evaluated our protocols on microbenchmarks and real-world use cases. We show that our randomized BFT protocol is as efficient as conventional BFT protocols, and our confidential BFT protocol is two to three orders of magnitude faster than Yin et al.'s, which is less secure than ours.

  19. Cytotoxicity and Initial Biocompatibility of Endodontic Biomaterials (MTA and Biodentine™ Used as Root-End Filling Materials

    Directory of Open Access Journals (Sweden)

    Diana María Escobar-García

    2016-01-01

    Full Text Available Objective. The aim of this study was to evaluate the cytotoxicity and cellular adhesion of Mineral Trioxide Aggregate (MTA and Biodentine (BD on periodontal ligament fibroblasts (PDL. Methods. PDL cells were obtained from nonerupted third molars and cultured; MTS cellular profusion test was carried out in two groups: MTA and BD, with respective controls at different time periods. Also, the LIVE/DEAD assay was performed at 24 h. For evaluation of cellular adhesion, immunocytochemistry was conducted to discern the expression of Integrin β1 and Vinculin at 12 h and 24 h. Statistical analysis was performed by the Kruskal-Wallis and Mann-Whitney U tests. Results. MTA and BD exhibited living cells up to 7 days. More expressions of Integrin β1 and Vinculin were demonstrated in the control group, followed by BD and MTA, which also showed cellular loss and morphological changes. There was a significant difference in the experimental groups cultured for 5 and 7 days compared with the control, but there was no significant statistical difference between both cements. Conclusions. Neither material was cytotoxic during the time evaluated. There was an increase of cell adhesion through the expression of focal contacts observed in the case of BD, followed by MTA, but not significantly.

  20. Cytotoxicity and Initial Biocompatibility of Endodontic Biomaterials (MTA and Biodentine™) Used as Root-End Filling Materials.

    Science.gov (United States)

    Escobar-García, Diana María; Aguirre-López, Eva; Méndez-González, Verónica; Pozos-Guillén, Amaury

    2016-01-01

    Objective. The aim of this study was to evaluate the cytotoxicity and cellular adhesion of Mineral Trioxide Aggregate (MTA) and Biodentine (BD) on periodontal ligament fibroblasts (PDL). Methods. PDL cells were obtained from nonerupted third molars and cultured; MTS cellular profusion test was carried out in two groups: MTA and BD, with respective controls at different time periods. Also, the LIVE/DEAD assay was performed at 24 h. For evaluation of cellular adhesion, immunocytochemistry was conducted to discern the expression of Integrin β1 and Vinculin at 12 h and 24 h. Statistical analysis was performed by the Kruskal-Wallis and Mann-Whitney U tests. Results. MTA and BD exhibited living cells up to 7 days. More expressions of Integrin β1 and Vinculin were demonstrated in the control group, followed by BD and MTA, which also showed cellular loss and morphological changes. There was a significant difference in the experimental groups cultured for 5 and 7 days compared with the control, but there was no significant statistical difference between both cements. Conclusions. Neither material was cytotoxic during the time evaluated. There was an increase of cell adhesion through the expression of focal contacts observed in the case of BD, followed by MTA, but not significantly.

  1. On the application of MTA in clinical treatment%MTA(矿物三氧化物)在口腔临床的应用研究(综述)

    Institute of Scientific and Technical Information of China (English)

    高云松

    2006-01-01

    目的:评价MTA在口腔临床中的应用.方法:收集近年来各种医学杂志已报道的有关研究资料.结果:MTA应用于牙科治疗中的直接盖髓术、活髓切断术、根尖成形、髓室底穿孔及根管侧穿修补、根尖倒充填术等多个领域,有着较好疗效.结论:在以上各种疾病治疗中,应用MTA,疗效确切,生物相容性好,在临床上有着良好的治疗前景.

  2. CRAC: Confidentiality Risk Assessment and IT-Architecture Comparison

    OpenAIRE

    Morali, Ayse; Zambon, Emmanuele; Etalle, Sandro; Wieringa, Roel

    2010-01-01

    CRAC is an IT-architecture-based method for assessing and comparing confidentiality risks of distributed IT systems. The method determines confidentiality risks by taking into account the effects of the leakage of confidential information (e.g. industrial secrets), and the paths that may be followed by different attackers (e.g. insider and outsider). We evaluate its effectiveness by applying it to a real-world outsourcing case.

  3. Processing of confidential information in distributed systems by fragmentation

    OpenAIRE

    Fabre, Jean-Charles; Pérennou, Tanguy

    1997-01-01

    This paper discusses how object orientation in application design enables confidentiality aspects to be handled more easily than in conventional approaches. The approach is based on the Fragmentation-Redundancy-Scattering technique developed at LAAS–CNRS for several years. This technique and previous developments are briefly summarized. The idea developed in this paper is based on object fragmentation at design time for reducing data processing in confidential objects; the more non confidenti...

  4. Mta-1与VEGF在乳腺癌组织中的表达及其相关性%Correlation Between Mta-1 and VEGF Expression in Breast Carcinoma

    Institute of Scientific and Technical Information of China (English)

    宾捷; 孔屏

    2009-01-01

    [目的]研究乳腺癌组织中转移相关基因(Mta-1)和血管内皮生长因子(VEGF)的表达,分析其与乳腺癌临床分期、病理类型、淋巴结转移等临床病理参数之间的关系.[方法]免疫组化方法检测120例乳腺癌组织和60例正常乳腺组织中Mta-1及VEGF的表达;分析二者与乳腺癌临床病理类型、发病年龄、临床分期、淋巴结转移等临床病理参数的关系及Mta-1表达与VEGF的相关性.[结果]Mta-1和VEGF在乳腺癌组织中的阳性表达率明显高于正常乳腺组织,两组表达之间差异有显著性(P0.05).120例乳腺癌中伴有淋巴结转移组和临床分期Ⅲ、Ⅳ期组乳腺癌组织Mta-1与VEGF的阳性表达率明显高于无淋巴结转移组和Ⅰ、Ⅱ期组.120例乳腺癌组织中,Mta-1的表达与VEGF的表达呈正相关(rs=0.758,P<0.05).[结论]Mta-1及VEGF可以作为乳腺癌预测转移和判断预后的生物学标志物,Mta-1与VEGF的表达增高在乳腺癌的发生、发展过程中起协同作用.

  5. Evidence, Interpretation, and Qualification from Multiple Reports of Long-Term Outcomes in the Multimodal Treatment Study of Children with ADHD (MTA): Part II--Supporting Details

    Science.gov (United States)

    Swanson, James; Arnold, L. Eugene; Kraemer, Helena; Hechtman, Lily; Molina, Brooke; Hinshaw, Stephen; Vitiello, Benedetto; Jensen, Peter; Steinhoff, Ken; Lerner, Marc; Greenhill, Laurence; Abikoff, Howard; Wells, Karen; Epstein, Jeffery; Elliott, Glen; Newcorn, Jeffrey; Hoza, Betsy; Wigal, Timothy

    2008-01-01

    Objective: To review and provide details about the primary and secondary findings from the Multimodal Treatment study of ADHD (MTA) published during the past decade as three sets of articles. Method: In the second of a two part article, we provide additional background and detail required by the complexity of the MTA to address confusion and…

  6. The evaluation of interfaces between MTA and two types of GIC (conventional and resin modified) under an SEM: An in vitro study

    Science.gov (United States)

    Patil, Anuradha; Aggarwal, Shalini; Kumar, Tanaya; Bhargava, Karan; Rai, Vinay

    2016-01-01

    Context: Mineral trioxide aggregate (MTA) is a biocompatible repair material that is often used along with glass ionomer cement (GIC) in many clinical situations. Aims: In this study, the interface of GIC and MTA was examined, and the effect of time on this interface was tested. Materials and Methods: Forty 9-mm hollow cylindrical glass molds were filled with MTA and then according to the group either conventional GIC or resin-modified GIC (RMGIC) is filled immediately or after 45 min. The specimens were then sectioned, carbon coated, and examined using a scanning electron microscope (SEM) and the elemental analysis was done. Statistical Analysis: Observational study, no statistical analysis done. Results: The SEM showed that both the groups underwent adhesive separation and gap formation at the interface. The specimens in which GIC was condensed over freshly mixed MTA (group IIA and group IIB) also showed cohesive separation in MTA; however, it was more in the GIC condensed after 45 min over MTA groups (group IA and group IB). The results were better for conventional GIC than RMGIC. Conclusions: GIC can be applied over freshly mixed MTA with minimal effects on the MTA, but this effect decreases with time. PMID:27217640

  7. Radiopacity evaluation of root canal sealers containing calcium hydroxide and MTA

    OpenAIRE

    Juliane Maria Guerreiro- Tanomaru; Marco Antonio Húngaro Duarte; Marcelo Gonçalves; Mario Tanomaru-Filho

    2009-01-01

    The purpose of this study was to evaluate the radiopacity of root canal sealers containing calcium hydroxide and MTA (Acroseal, Sealer 26, Sealapex, Endo CPM Sealer, Epiphany and Intrafill). Five disc-shaped specimens (10 x 1 mm) were fabricated from each material, according to the ISO 6876/2001 standard. After setting of the materials, radiographs were taken using occlusal film and a graduated aluminum stepwedge varying from 2 to 16 mm in thickness. The dental X-ray unit (GE1000) was set at ...

  8. The effect of bevel angle on apical microleakage following the use of amalgam and MTA

    Directory of Open Access Journals (Sweden)

    Sharifian MR

    2006-07-01

    Full Text Available Background and Aim: Achieving appropriate seal in canal obturation is the main goal of endodontic therapy. However, in some cases, it can not be obtained by non-surgical procedures alone. Retrograde surgery is one of the most common procedures in endodontics. Apical seal improvement can be obtained by root end filling and decreasing the root end resection angle (bevel angle. The aim of this study was to investigate the role of bevel angle on apical microleakage following the use of amalgam and MTA as root end filling materials. Materials and Methods: In this experimental study, 128 extracted human teeth were instrumented and obturated by lateral condensation technique. The teeth were divided into two groups and the apical root resection was performed by high speed fissure bur (one group perpendicular to the long axis of the teeth and the other 45 to the long axis. The 3 mm root end cavity was prepared by ultrasonic device. Each group was divided into two subgroups: One filled with amalgam and the other with MTA. Teeth were incubated for 72 h, covered by two layers of nail polish (except for apical 3mm and submerged in methylene blue for 48 h. Teeth were washed under tap water and mesiodistally dissected by low speed disc. Dye penetration was evaluated by stereomicroscope. Data were analysed by two way ANOVA and Tukey tests with p<0.05 as the limit of significance. Results: The results showed that retrofill material type had a significant effect on microleakage and MTA was superior to amalgam in this respect. Bevel angle failed to show any significant effect on apical microleakage. Conclusion: Based on the results of this study, it seems that the use of MTA instead of amalgam in clinical practice can improve the success rate of endodontic surgery whereas the bevel angle can be determined based on the status of each individual case; However, increasing the bevel angle seems to increase microleakage due to exposure of more dentinal tubules.

  9. Incappucciamento Indiretto con Mineral Trioxide Aggregate (Mta: Caso Clinico e Follow-up

    Directory of Open Access Journals (Sweden)

    Francesco Riccitiello

    2014-11-01

    Risultati e conclusioni: A causa di alcuni problemi di salute, la bambina è tornata dopo 6 mesi. È stata osservata la formazione di tessuto duro e il controllo rx mostrava una chiara evidenza di formazione radicolare. Abbiamo eseguito il restauro finale di 36 con materiali compositi. Al controllo dopo 6 mesi e 7 anni non risultano segni clinici e radiografici di patologia pulpare o radicolare. In conclusione, l’MTA sembra essere un materiale utilizzabile con successo per il mantenimento della vitalità pulpare. Inoltre offre un’ottima impermeabilità, anche nei casi in cui ha avuto luogo una perdita di integrità del materiale di otturazione provvisorio.

  10. SEALING ABILITY OF GRAY MTA ANGELUS™, CPM™ AND MBPC USED AS APICAL PLUGS

    OpenAIRE

    Fernando Accorsi Orosco; Clovis Monteiro Bramante; Roberto Brandão Garcia; Norberti Bernadineli; Ivaldo Gomes de Moraes

    2008-01-01

    This study evaluated the sealing ability of apical plugs fabricated with gray MTA AngelusTM sealer, CPM TM sealer and MBPc sealer. The root canals of 98 extracted single-rooted human teeth were instrumented with #5 to #1 Gates Glidden drills according to the crown-down technique until the #1 drill could pass through the apical foramen. The specimens were then prepared with K-files, starting with an ISO 50 until an ISO 90 could be visualized 1 mm beyond the apex. After root canal preparation, ...

  11. Shear bond strength of Biodentine, ProRoot MTA, glass ionomer cement and composite resin on human dentine ex vivo

    OpenAIRE

    Kaup, Markus; Dammann, Christoph Heinrich; Schäfer, Edgar; Dammaschke, Till, 1965-

    2015-01-01

    Introduction The aim of this study was to compare the shear bond strength of Biodentine, ProRoot MTA (MTA), glass ionomer cement (GIC) and composite resin (CR) on dentine. Methods 120 extracted human third molars were embedded in cold-cured-resin and grinned down to the dentine. For each material 30 specimens were produced in standardised height and width and the materials were applied according to manufacturers´ instructions on the dentine samples. Only in the CR group a self-etching dentine...

  12. Enhance Confidentiality of Threshold Signature for MANET

    Institute of Scientific and Technical Information of China (English)

    GUO Wei; XIONG Zhongwei

    2006-01-01

    The participating wireless mobile node that mobile ad hoc network (MANET) communications need to forward may be malicious. That means not only adversary might be able to acquire some sensitive information of the threshold signatures from the compromised node, but also the partial signatures may be fabricated by malicious node, the advantages of threshold signatures would disappear. Signing and encrypting the sensitive information of the threshold signatures, and only the specified receiver can recover it, which will improve the confidentiality of threshold signatures. The security analysis shows the method is suitable for the secure characteristic of MANET that has the malicious nodes, and the message transmission is secure can against the attack.

  13. Effects of LED or laser phototherapy on bone defects grafted with MTA and irradiated with laser or LED light: a comparative Raman spectroscopic study

    Science.gov (United States)

    Pinheiro, Antonio L. B.; Soares, Luiz G. P.; Barbosa, Artur Felipe S.; Silveira, Landulfo, Jr.

    2012-03-01

    We studied peaks of calcium hydroxyapatite - CHA on defects grafted with MTA, treated or not with Light Emitting Diode - LED or IR Laser. 54 rats were divided in 6 groups each subdivided into 3 subgroups (15,21,30d). LED (λ850 +/- 10nm) or IR Laser (λ850 nm) was applied over (LED) or in 4 points around the defect at 48 h intervals for 15 days. Raman readings were taken at the surface of the defect. The smaller overall intensity of the peak was found in Group MTA + Laser (1510.2 +/- 274.1) and the highest on Group LED (2322 +/- 715). There were no statistically significant differences between non-irradiated subjects on regards the CHA peaks. On the other hand, there were statistically significant differences between the Group Clot and LED, Clot and Laser, and Clot and MTA + Laser (p =0.01, p = 0.02, p = 0.003). There were no significant differences between Group MTA and MTA + LED (p=0.2) but significant differences were seen between Groups MTA and MTA + Laser (p=0.01). Significant differences were also observed between Groups LED and Laser (p MTA + LED and MTA + Laser (p=0.009). MTA, due to its characteristics, seemed to be directly affected by the light. However, the use of either phototherapy positively affected bone healing similarly as observed on different studies using other biomaterials. The overall analysis of our results indicated that the use of either light source resulted in a better, more advanced, and of quality bone repair.

  14. Ant Colony Optimization Based Modified Termite Algorithm (MTA with Efficient Stagnation Avoidance Strategy for MANETs

    Directory of Open Access Journals (Sweden)

    Sharvani G S

    2012-10-01

    Full Text Available Designing an effective load balancing algorithm is difficult due to Dynamic topology of MANET. Toaddress the problem, a load balancing routing algorithm namely Modified Termite Algorithm (MTA hasbeen developed based on ant’s food foraging behavior. Stability of the link is determined based on nodestability factor ‘’. The stability factor “ “of the node is the ratio defined between the “hello sent” and“hello replied” by a node to its neighbors. This also indicates the link stability in relation to other pathstowards the destination. A higher ratio of “” indicates that the neighbor node is more stable. Using thisconcept pheromone evaporation for the stable node is fine tuned such that if the ratio “” is more, theevaporation is slow and if “” is less the evaporation is faster. This leads to decreasing of the pheromonecontent in an optimal path which may result in congestion. These paths can be avoided using efficientevaporation technique. The MTA developed by adopting efficient pheromone evaporation technique willaddress the load balancing problems and expected to enhance the performance of the network in terms ofthroughput, and reduces End-to-end delay and Routing overheads

  15. Radiopacity evaluation of root canal sealers containing calcium hydroxide and MTA

    Directory of Open Access Journals (Sweden)

    Juliane Maria Guerreiro- Tanomaru

    2009-06-01

    Full Text Available The purpose of this study was to evaluate the radiopacity of root canal sealers containing calcium hydroxide and MTA (Acroseal, Sealer 26, Sealapex, Endo CPM Sealer, Epiphany and Intrafill. Five disc-shaped specimens (10 x 1 mm were fabricated from each material, according to the ISO 6876/2001 standard. After setting of the materials, radiographs were taken using occlusal film and a graduated aluminum stepwedge varying from 2 to 16 mm in thickness. The dental X-ray unit (GE1000 was set at 50 kVp, 10 mA, 18 pulses/s and distance of 33.5 cm. The radiographs were digitized and the radiopacity compared to that of the aluminum stepwedge using VIXWIN-2000 software (Gendex. The data (mmAl were analyzed statistically by ANOVA and Tukey's test at the 5% significance level. Epiphany and Intrafill presented the highest radiopacity values (8.3 mmAl and 7.5 mmAl respectively, p < 0.05 followed by Sealer 26 (6.3 mmAl, Sealapex (6.1 mmAl and Endo CPM Sealer (6 mmAl. Acroseal was the least radiopaque material (4 mmAl, p < 0.05. In conclusion, the calcium hydroxide- and MTA-containing root canal sealers had different radiopacities. However, all materials presented radiopacity values above the minimum recommended by the ISO standard.

  16. Technical Features of 1.8 Mt/a RFCC Unit at Khartoum Refinery in Sudan

    Institute of Scientific and Technical Information of China (English)

    Huang Yongzhang; Wang Xingyi; Zhou Xinteng; Fan Sheng

    2000-01-01

    Khartoum refinery, which is a large modernized fuel-type refinery jointly set up by PetroChina and Ministry of Energy and Minerals of Sudan, represents the first refining project of China s overseas investment operated commercially according to international standard. The crude distillation capacity of this refinery is 2. 5 Mt/a, with a 1.8 Mt/a RFCC unit serving as the core of the refinery. This RFCC unit, which was put on stream successfully at the first attempt, has been operating smoothly for about five months. This unit has good risk-rcsponse ability while working flexibly at both high and low loads. When the FCC feed oil is lighter than design target and oil is of obvious paraffinic nature, the light distillate yield and liquid yield at this RFCC unit are in the range of 70% - 72% and 86% - 87%, respectively. The successful startup of RFCC unit in Sudan has symbolized the advanced level China has reached in the fields of design and R&D on heavy oil processing and major contributions of China' s petrochemical industry marching towards international market.

  17. 28 CFR 40.10 - Records-nature; confidentiality.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Records-nature; confidentiality. 40.10 Section 40.10 Judicial Administration DEPARTMENT OF JUSTICE STANDARDS FOR INMATE GRIEVANCE PROCEDURES Minimum Standards for Inmate Grievance Procedures § 40.10 Records—nature; confidentiality. (a)...

  18. 49 CFR 511.66 - Confidential business information.

    Science.gov (United States)

    2010-10-01

    ... in Cases of Violation of Average Fuel Economy Standards § 511.66 Confidential business information... 49 Transportation 6 2010-10-01 2010-10-01 false Confidential business information. 511.66 Section... view information in support of a petition for settlement which has been determined to be...

  19. 50 CFR 600.130 - Protection of confidentiality of statistics.

    Science.gov (United States)

    2010-10-01

    ... statistics. 600.130 Section 600.130 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL... Fishery Management Councils § 600.130 Protection of confidentiality of statistics. Each Council must establish appropriate procedures for ensuring the confidentiality of the statistics that may be submitted...

  20. 7 CFR 2903.14 - Conflicts of interest and confidentiality.

    Science.gov (United States)

    2010-01-01

    ... Evaluation § 2903.14 Conflicts of interest and confidentiality. (a) During the peer evaluation process... or evaluation. Determinations of conflicts of interest will be based on the academic and... peer evaluations, will be kept confidential, except to those involved in the review process, to...

  1. 38 CFR 17.501 - Confidential and privileged documents.

    Science.gov (United States)

    2010-07-01

    ... were produced by or for the VA in the process of conducting systematic healthcare reviews for the purpose of improving the quality of health care or improving the utilization of healthcare resources in VA... AFFAIRS MEDICAL Confidentiality of Healthcare Quality Assurance Review Records § 17.501 Confidential...

  2. 10 CFR 207.4 - Confidentiality of energy information.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 3 2010-01-01 2010-01-01 false Confidentiality of energy information. 207.4 Section 207.4 Energy DEPARTMENT OF ENERGY OIL COLLECTION OF INFORMATION Collection of Information Under the Energy Supply and Environmental Coordination Act of 1974 § 207.4 Confidentiality of energy information....

  3. 29 CFR 4010.13 - Confidentiality of information submitted.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 9 2010-07-01 2010-07-01 false Confidentiality of information submitted. 4010.13 Section... Confidentiality of information submitted. In accordance with § 4901.21(a)(3) of this chapter and ERISA section 4010(c), any information or documentary material that is not publicly available and is submitted...

  4. 22 CFR 130.15 - Confidential business information.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Confidential business information. 130.15 Section 130.15 Foreign Relations DEPARTMENT OF STATE INTERNATIONAL TRAFFIC IN ARMS REGULATIONS POLITICAL CONTRIBUTIONS, FEES AND COMMISSIONS § 130.15 Confidential business information. (a) Any person who is...

  5. Ombuds’ corner: Open door and confidentiality

    CERN Multimedia

    Vincent Vuillemin

    2013-01-01

    For the Open Days, CERN will be transparent for all visitors. It's also the occasion to remember that the Ombuds' door is fully open every day of the year for all persons working for or on behalf of CERN.   The door is open, but as soon as it's closed for a discussion, the office becomes a place where total confidentiality is preserved. This may appear as a contradiction, no? The Ombuds is available to help everyone in all circumstances, but his clause of confidentiality prevents him from acting without the consent of his “visitors”. How can he possibly resolve the in-house conflicts in groups, or units, if all the parties do not voluntarily participate in its resolution? The answer is clear: the job of the Ombuds is to help the parties resolve their conflict by themselves. He will provide a few rules of communication, a process of mutual respect, suggest some possibilities that the parties may want to follow, and mediate the dispute so that people...

  6. [Some current threats to confidentiality in medicine].

    Science.gov (United States)

    Echeverría B, Carlos; Goic G, Alejandro; Herrera C, Carolina; Quintana V, Carlos; Rojas O, Alberto; Ruiz-Esquide, Gonzalo; Salinas R, Rodrigo; Serani M, Alejandro; Taboada R, Paulina; Vacarezza Y, Ricardo

    2015-03-01

    Social, technical and legal conditions of the current practice of medicine make it necessary to insist on certain actions and circumstances that may jeopardize the confidentiality of information, offered by patients to their health providers. Therefore, some effects of the current Chilean law are analyzed in this respect, regarding access to data from the clinical record of a patient. Also, the risks of putting certain data on social networking sites are analyzed, as well as some of its effects on clinical practice. The reasons because of mandatory reporting of diseases, meaning danger to public health, is allowed, are mentioned. We also discuss the difficulties involved in managing the results of preventative health screenings and its knowledge by third parties, as well as some possible violations of personal privacy, regarding dissemination of some people health information and its further mention or figuration in mass media. We conclude that it is a must for both physicians and other health team members, to safeguard confidentiality of data to which they have had access, as well as the need to know the relevant law, in order to respect human dignity of patients, each one as a person. We address the attention to the possibility that, practicing in a different way, it could endanger the reliability of clinical records, also impairing the quality of people's health care. PMID:26005823

  7. Confidential Declaration of Family Situation (CDFS)

    CERN Multimedia

    Human Resources Department

    2005-01-01

    The Confidential Declaration of Family Situation (CDFS) becomes a new computerized EDH form from October 2005 In accordance with Article R IV 1.17 of the Staff Regulations, Staff Members and Fellows, married or separated, must notify any changes in their spouse's income or health insurance cover in writing to CERN, within 30 calendar days of the change. This is necessary for the Organization to determine if a supplementary contribution is payable to the CERN Health Insurance Scheme (CHIS) for the spouse's coverage and, if so, the amount. Until now a paper form called « Confidential Declaration of Family Situation » (CDFS) was used for that purpose.  From early October 2005 the CDFS will be computerized for the whole Organization. Henceforth, any changes in a spouse's income or health insurance cover must be notified using EDH (Electronic Document Handling). Additionally, annual updates of the declaration will be required and will be requested by automatic e-mail. Early October an email will be sent to...

  8. Confidential Declaration of Family Situation (CDFS)

    CERN Multimedia

    Human Resources Department

    2005-01-01

    The Confidential Declaration of Family Situation (CDFS) becomes a new computerized EDH form from October 2005 In accordance with Article R IV 1.17 of the Staff Regulations, Staff Members and Fellows, married or separated, must notify any changes in their spouse's income or health insurance cover in writing to CERN, within 30 calendar days of the change. This is necessary for the Organization to determine if a supplementary contribution is payable to the CERN Health Insurance Scheme (CHIS) for the spouse's coverage and, if so, the amount. Until now a paper form called « Confidential Declaration of Family Situation » (CDFS) was used for that purpose.  From early October 2005 the CDFS will be computerized for the whole Organization. Henceforth, any changes in a spouse's income or health insurance cover must be notified using EDH (Electronic Document Handling). Additionally, annual updates of the declaration will be required and will be requested by automatic e-mail. Early October an email will be...

  9. Genetic secrets: Protecting privacy and confidentiality in the genetic era

    Energy Technology Data Exchange (ETDEWEB)

    Rothstein, M.A. [ed.

    1998-07-01

    Few developments are likely to affect human beings more profoundly in the long run than the discoveries resulting from advances in modern genetics. Although the developments in genetic technology promise to provide many additional benefits, their application to genetic screening poses ethical, social, and legal questions, many of which are rooted in issues of privacy and confidentiality. The ethical, practical, and legal ramifications of these and related questions are explored in depth. The broad range of topics includes: the privacy and confidentiality of genetic information; the challenges to privacy and confidentiality that may be projected to result from the emerging genetic technologies; the role of informed consent in protecting the confidentiality of genetic information in the clinical setting; the potential uses of genetic information by third parties; the implications of changes in the health care delivery system for privacy and confidentiality; relevant national and international developments in public policies, professional standards, and laws; recommendations; and the identification of research needs.

  10. Effect of irrigation technique for removal of triple antibiotic paste on bond strength of MTA to root dentin.

    Science.gov (United States)

    Dumani, Aysin; Yilmaz, Sehnaz; Yoldas, Oguz; Bek, Zeliha Gonca

    2016-01-01

    This study evaluated the bond strength of mineral trioxide aggregate (MTA) to root canal dentin after the performance of various irrigation procedures to remove triple antibiotic paste (TAP). A total of 56 single-rooted human mandibular premolars were instrumented using a rotary system to size 40 and divided randomly into a control group (no intracanal dressing) and three experimental groups (TAP application for 28 days). TAP was then removed by rinsing with 10 mL 2.5% NaOCl using three irrigation systems (Vibringe sonic irrigation, CanalBrush, and syringe irrigation). The coronal and middle parts of root canals were then obturated with MTA. After storage for 1 week, each specimen was embedded in an acrylic block and sectioned horizontally (2-mm-thick slices) at two levels (coronal and middle). Bond strength of MTA to root canal dentin was assessed in 28 samples per group via push-out test using a universal testing machine. Data from the four groups were compared using one-way analysis of variance. Tukey's test was used for multiple comparisons. Push-out bond strength values were significantly higher in the control and Vibringe groups than in the CanalBrush and syringe irrigation groups (p irrigation system may increase the push-out bond strength of MTA compared with the use of the CanalBrush or syringe irrigation. PMID:27191739

  11. Sealing ability of MTA, CPM, and MBPc as root-end filling materials: a bacterial leakage study

    Science.gov (United States)

    MEDEIROS, Paulo Leal; BERNARDINELI, Norberti; CAVENAGO, Bruno Cavalini; TORRES, Sérgio Aparecido; DUARTE, Marco Antonio Hungaro; BRAMANTE, Clovis Monteiro; MARCIANO, Marina Angélica

    2016-01-01

    ABSTRACT Objectives To evaluate the sealing ability of three root-end filling materials (white MTA, CPM, and MBPc) using an Enterococcus faecalis leakage model. Material and Methods Seventy single-root extracted human teeth were instrumented and root-ends were resected to prepare 3 mm depth cavities. Root-end preparations were filled with white MTA, CPM, and MBPc cements. Enterococcus faecalis was coronally introduced and the apical portion was immersed in BHI culture medium with phenol red indicator. The bacterial leakage was monitored every 24 h for 4 weeks. The statistical analysis was performed using the Wilcoxon-Gehan test (p<0.05). Results All cements showed bacterial leakage after 24 hours, except for the negative control group. The MBPc showed significantly less bacterial leakage compared with the MTA group (p<0.05). No significant differences were found between the CPM and the other groups. Conclusions The epoxy resin-based cement MBPc had lower bacterial leakage compared with the calcium silicate-based cements MTA and CPM. PMID:27119763

  12. Sealing ability of MTA, CPM, and MBPc as root-end filling materials: a bacterial leakage study

    Directory of Open Access Journals (Sweden)

    Paulo Leal MEDEIROS

    2016-04-01

    Full Text Available ABSTRACT Objectives To evaluate the sealing ability of three root-end filling materials (white MTA, CPM, and MBPc using an Enterococcus faecalis leakage model. Material and Methods Seventy single-root extracted human teeth were instrumented and root-ends were resected to prepare 3 mm depth cavities. Root-end preparations were filled with white MTA, CPM, and MBPc cements. Enterococcus faecalis was coronally introduced and the apical portion was immersed in BHI culture medium with phenol red indicator. The bacterial leakage was monitored every 24 h for 4 weeks. The statistical analysis was performed using the Wilcoxon-Gehan test (p<0.05. Results All cements showed bacterial leakage after 24 hours, except for the negative control group. The MBPc showed significantly less bacterial leakage compared with the MTA group (p<0.05. No significant differences were found between the CPM and the other groups. Conclusions The epoxy resin-based cement MBPc had lower bacterial leakage compared with the calcium silicate-based cements MTA and CPM.

  13. Delinquent Behavior and Emerging Substance Use in the MTA at 36 Months: Prevalence, Course, and Treatment Effects

    Science.gov (United States)

    Molina, Brooke S. G.; Flory, Kate; Hinshaw, Stephen P.; Greiner, Andrew R.; Arnold, L. Eugene; Swanson, James M.; Hechtman, Lily; Jensen, Peter S.; Vitiello, Benedetto; Hoza, Betsy; Pelham, William E.; Elliott, Glen R.; Wells, Karen C.; Abikoff, Howard B.; Gibbons, Robert D.; Marcus, Sue; Conners, C. Keith; Epstein, Jeffery N.; Greenhill, Laurence L.; March, John S.; Newcorn, Jeffrey H.; Severe, Joanne B.; Wigal, Timothy

    2007-01-01

    Objective: To compare delinquent behavior and early substance use between the children in the Multimodal Treatment Study of Children With ADHD (MTA; N = 487) and those in a local normative comparison group (n = 272) at 24 and 36 months postrandomization and to test whether these outcomes were predicted by the randomly assigned treatments and…

  14. Effect of irrigation technique for removal of triple antibiotic paste on bond strength of MTA to root dentin.

    Science.gov (United States)

    Dumani, Aysin; Yilmaz, Sehnaz; Yoldas, Oguz; Bek, Zeliha Gonca

    2016-01-01

    This study evaluated the bond strength of mineral trioxide aggregate (MTA) to root canal dentin after the performance of various irrigation procedures to remove triple antibiotic paste (TAP). A total of 56 single-rooted human mandibular premolars were instrumented using a rotary system to size 40 and divided randomly into a control group (no intracanal dressing) and three experimental groups (TAP application for 28 days). TAP was then removed by rinsing with 10 mL 2.5% NaOCl using three irrigation systems (Vibringe sonic irrigation, CanalBrush, and syringe irrigation). The coronal and middle parts of root canals were then obturated with MTA. After storage for 1 week, each specimen was embedded in an acrylic block and sectioned horizontally (2-mm-thick slices) at two levels (coronal and middle). Bond strength of MTA to root canal dentin was assessed in 28 samples per group via push-out test using a universal testing machine. Data from the four groups were compared using one-way analysis of variance. Tukey's test was used for multiple comparisons. Push-out bond strength values were significantly higher in the control and Vibringe groups than in the CanalBrush and syringe irrigation groups (p irrigation system may increase the push-out bond strength of MTA compared with the use of the CanalBrush or syringe irrigation.

  15. MTA用于髓腔穿孔修复中的相关研究%Use of MTA material in repair of pulp chamber perforations

    Institute of Scientific and Technical Information of China (English)

    李立; 尹仕海

    2011-01-01

    髓腔穿孔一直是牙体牙髓病治疗中的难点,MTA在髓腔穿孔修复中具有独特优越性.本文就现有研究文献对MTA的性能及其在髓腔穿孔修复中的应用作一综述.%Perforation is always an intractable problem, and MTA has been proved to be superior than mostof the endodontic materials for its treatment. This article reviews the properties of MTA and focuses on the application of MTA to the management of perforations.

  16. Histopathologic Responses of the Dental Pulp to Calcium-Enriched Mixture (CEM) and Mineral Trioxide Aggregate (MTA) in Diabetic and Non-Diabetic Rats

    OpenAIRE

    Madani, Zahra Sadat; Haddadi, Azam; Mesgarani, Abbas; Seyedmajidi, Maryam; Mostafazadeh, Amrollah; Bijani, Ali; Ashraphpour, Manouchehr

    2014-01-01

    Diabetes mellitus is a chronic disease which affects the healing ability of the pulp and periodontium. The aim of the present study was to assess the histopathologic response of dental pulp to pulp capping using MTA or CEM cement in diabetic rats. Thirty two Wistar male rats aged between 8 and 10 weeks (weight: 200-250g) were divided into two groups of diabetic (n=16) and healthy (n=16) animals and then subdivided into MTA and CEM subgroups. In each group, 10 MTA treated, 10 CEM treated and 1...

  17. Identifying firing mammalian neurons in networks with high-resolution multi-transistor array (MTA)

    Science.gov (United States)

    Lambacher, A.; Vitzthum, V.; Zeitler, R.; Eickenscheidt, M.; Eversmann, B.; Thewes, R.; Fromherz, P.

    2011-01-01

    The electrical activity of a network of mammalian neurons is mapped with a Multi-Transistor Array (MTA) fabricated with extended CMOS technology. The spatial resolution is 7.4 μm on an area of 1 mm2 at a sampling frequency of 6 kHz for a complete readout of 16,384 sensor transistors. Action potentials give rise to extracellular voltages with amplitudes in a range of 500 μV. On the basis of the high resolution in space and time, correlation algorithms are used to identify single action potentials with amplitudes as low as about 200μV, and to assign the signals to the activity of individual neurons even in a dense network.

  18. Sealing ability of grar MTA AngelusTM, CPM TM and MBPc used as apical plugs.

    Science.gov (United States)

    Orosco, Fernando Accorsi; Bramante, Clovis Monteiro; Garcia, Roberto Brandão; Bernadineli, Norberti; Moraes, Ivaldo Gomes de

    2008-01-01

    This study evaluated the sealing ability of apical plugs fabricated with gray MTA Angelus sealer, CPM TM sealer and MBPc sealer. The root canals of 98 extracted single-rooted human teeth were instrumented with #5 to #1 Gates Glidden drills according to the crown-down technique until the #1 drill could pass through the apical foramen. The specimens were then prepared with K-files, starting with an ISO 50 until an ISO 90 could be visualized 1 mm beyond the apex. After root canal preparation, the external surface of each root was rendered impermeable and roots were assigned to 3 experimental groups (n = 30), which received a 5-mm thick apical plug of gray MTA Angelus, CPM and MBPc, and two control groups (n=4). The remaining portion of the canal in the experimental groups was filled by the lateral condensation technique. The teeth of each group, properly identified, were fixed on utility wax by their crowns and were placed in plastic flasks, leaving the apex free and facing upward. The flasks were filled with 0.2% Rhodamine B solution, pH 7.0, so as to completely cover the root apex of all teeth. The sealing ability was analyzed by measuring 0.2% Rhodamine B leakage after all groups had been maintained in this solution for 48 hours. Data were analyzed statistically by Kruskal-Wallis test and Dunn test with a=5%. The results showed that, among the tested materials used for fabrication of apical plugs, MBPc sealer had the least amount of leakage with statistically significant difference (p<0.05). PMID:19089289

  19. Sealing ability of grar MTA AngelusTM, CPM TM and MBPc used as apical plugs

    Directory of Open Access Journals (Sweden)

    Fernando Accorsi Orosco

    2008-02-01

    Full Text Available This study evaluated the sealing ability of apical plugs fabricated with gray MTA AngelusTM sealer, CPM TM sealer and MBPc sealer. The root canals of 98 extracted single-rooted human teeth were instrumented with #5 to #1 Gates Glidden drills according to the crown-down technique until the #1 drill could pass through the apical foramen. The specimens were then prepared with K-files, starting with an ISO 50 until an ISO 90 could be visualized 1 mm beyond the apex. After root canal preparation, the external surface of each root was rendered impermeable and roots were assigned to 3 experimental groups (n = 30, which received a 5-mm thick apical plug of gray MTA AngelusTM, CPM TM and MBPc, and two control groups (n=4. The remaining portion of the canal in the experimental groups was filled by the lateral condensation technique. The teeth of each group, properly identified, were fixed on utility wax by their crowns and were placed in plastic flasks, leaving the apex free and facing upward. The flasks were filled with 0.2% Rhodamine B solution, pH 7.0, so as to completely cover the root apex of all teeth. The sealing ability was analyzed by measuring 0.2% Rhodamine B leakage after all groups had been maintained in this solution for 48 hours. Data were analyzed statistically by Kruskal-Wallis test and Dunn test with a=5%. The results showed that, among the tested materials used for fabrication of apical plugs, MBPc sealer had the least amount of leakage with statistically significant difference (p<0.05.

  20. 5 CFR 2634.901 - Policies of confidential financial disclosure reporting.

    Science.gov (United States)

    2010-01-01

    ... Confidential Financial Disclosure Reports § 2634.901 Policies of confidential financial disclosure reporting. (a) The confidential financial reporting system set forth in this subpart is designed to complement... 5 Administrative Personnel 3 2010-01-01 2010-01-01 false Policies of confidential...

  1. 7 CFR 1219.63 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE HASS AVOCADO PROMOTION, RESEARCH, AND INFORMATION Hass Avocado Promotion, Research, and Information Order Books, Records, and...

  2. Protecting the Confidentiality of the Therapeutic Relationship: "Jaffee v. Redmond."

    Science.gov (United States)

    Lens, Vicki

    2000-01-01

    Discusses the Supreme Court's 1996 decision in "Jaffee v. Redmond" and its importance for the social work profession. Maintains that the Court's establishment of a psychotherapy privilege acknowledges the importance of confidentiality in the psychotherapeutic relationship. (GCP)

  3. 28 CFR 549.14 - Confidentiality of information.

    Science.gov (United States)

    2010-07-01

    ... MEDICAL SERVICES Infectious Disease Management § 549.14 Confidentiality of information. Any disclosure of... System of Records Notice entitled “Inmate Physical and Mental Health Record System, JUSTICE/BOP-007”;...

  4. Confidential database-as-a-service approaches: taxonomy and survey

    OpenAIRE

    J. Köhler; Jünemann, K.; Hartenstein, H.

    2015-01-01

    Outsourcing data to external providers has gained momentum with the advent of cloud computing. Encryption allows data confidentiality to be preserved when outsourcing data to untrusted external providers that may be compromised by attackers. However, encryption has to be applied in a way that still allows the external provider to evaluate queries received from the client. Even though confidential database-as-a-service (DaaS) is still an active field of research, various techniques already add...

  5. Effect of diode laser irradiation on the apical sealing of MTA retrofillings Efeito da irradiação de laser de diodo no selamento apical em retrobturações com MTA

    Directory of Open Access Journals (Sweden)

    Eliana Barbosa de Souza

    2006-09-01

    Full Text Available Apical sealing is essential for the success of paraendodontic surgery, so any procedure that may favor an adequate sealing of the apical remainder should be performed. The purpose of this study was to evaluate the influence of diode laser irradiation on the apical sealing of root-end cavities with MTA retrofillings. Root canals in twenty extracted human teeth were shaped with K-files and filled with gutta-percha. The apexes were cut off and root-end preparations were performed. The roots were divided randomly in 2 groups. Group 1 (ten specimens was retrofilled with MTA. Group 2 was irradiated with diode laser, with 1 W for 20 seconds, on the apical surface and root end cavity before retrofilling with MTA. The specimens had their external surfaces impermeabilized with cyanoacrylate, except for the apical surface, and were then immersed in 1% rhodamine B dye for 72 h and placed in plaster stone. After that, the specimens were submitted to longitudinal abrasion until half of the root remained. The linear dye leakage was observed in these mid-roots between the root canal wall and retrofilling. The linear dye leakage was measured with Image Lab software, and the results were statistically analyzed with Student's t test. There were no statistically significant differences between the two groups (p > 0.05. The diode laser irradiation did not improve the apical sealing of MTA retrofillings under the conditions of this in vitro study.O selamento apical é fundamental para o sucesso da cirurgia parendodôntica. Assim, procedimentos que melhorem o selamento do remanescente apical devem ser utilizados. O objetivo deste estudo foi verificar se a irradiação de laser de diodo poderia aumentar o selamento apical em cavidades retrógradas obturadas com MTA. Foram utilizadas 20 raízes de dentes humanos extraídos que, após preparo com lima tipo K, tiveram seus canais obturados com guta-percha. Os ápices foram cortados e sofreram preparo de cavidades retr

  6. The evaluation of interfaces between MTA and two types of GIC (conventional and resin modified under an SEM: An in vitro study

    Directory of Open Access Journals (Sweden)

    Anuradha Patil

    2016-01-01

    Settings and Design: Materials tested were set and plastic moulds and analysed. Materials and Methods: Forty 9-mm hollow cylindrical glass molds were filled with MTA and then according to the group either conventional GIC or resin-modified GIC (RMGIC is filled immediately or after 45 min. The specimens were then sectioned, carbon coated, and examined using a scanning electron microscope (SEM and the elemental analysis was done. Statistical Analysis: Observational study, no statistical analysis done. Results: The SEM showed that both the groups underwent adhesive separation and gap formation at the interface. The specimens in which GIC was condensed over freshly mixed MTA (group IIA and group IIB also showed cohesive separation in MTA; however, it was more in the GIC condensed after 45 min over MTA groups (group IA and group IB. The results were better for conventional GIC than RMGIC. Conclusions: GIC can be applied over freshly mixed MTA with minimal effects on the MTA, but this effect decreases with time.

  7. Agreement Workflow Tool (AWT)

    Data.gov (United States)

    Social Security Administration — The Agreement Workflow Tool (AWT) is a role-based Intranet application used for processing SSA's Reimbursable Agreements according to SSA's standards. AWT provides...

  8. Sealing Ability of Resilon and MTA as Root-end Filling Materials: A Bacterial and Dye Leakage Study

    Science.gov (United States)

    Ashraf, Hengameh; Faramarzi, Farhad; Paymanpour, Payam

    2013-01-01

    Introduction Endodontic surgery is a valuable option for maintaining patient's natural dentition when previous orthograde endodontic treatments fail to succeed. Proper root-end preparation and placement of a retro-filling material are recommended for successful endodontic surgery. The objective of this experimental study was to compare sealing ability of Resilon/Epiphany system, as a potential root-end filling material, with ProRoot MTA using both dye and bacterial leakage models. Materials and Methods Ninety two single-rooted extracted human teeth were decoronated and prepared endodontically. Specimens were randomly divided into four experimental groups (n = 20) and four control groups (n = 3). After removal of apical 3 mm and root-end cavity preparation, MTA, or Resilon were used to fill root end cavities. For bacterial leakage, specimens (20 for each experimental group, 3 negative, and 3 positive controls) were subjected to E. faecalis over a 70-day period. Methylene blue was used for dye leakage (the same in number as before). Using stereomicroscope (40× mag.) complete dye leakage was assessed after 72 h. Kaplan-Meier survival analysis was performed for bacterial leakage. The data was analyzed using t-test and Chi-square analysis (α = 0.05). Results All of the positive controls and none of negative controls revealed leakage. Result of log rank test showed no significant difference between MTA and Resilon in time of bacterial leakage at the end of the 70 days (P > 0.05) There was also no statistical difference in complete dye leakage for both groups (P > 0.05). Conclusion Leakage occurred in both MTA and Resilon as root-end filling material but the difference was not statistically significant. Resilon might be noticed as a potential root-end filling material if good isolation is attainable. PMID:24171025

  9. Sealing Ability of Resilon and MTA as Root-end Filling Materials: A Bacterial and Dye Leakage Study

    OpenAIRE

    Ashraf, Hengameh; Faramarzi, Farhad; Paymanpour, Payam

    2013-01-01

    Introduction Endodontic surgery is a valuable option for maintaining patient's natural dentition when previous orthograde endodontic treatments fail to succeed. Proper root-end preparation and placement of a retro-filling material are recommended for successful endodontic surgery. The objective of this experimental study was to compare sealing ability of Resilon/Epiphany system, as a potential root-end filling material, with ProRoot MTA using both dye and bacterial leakage models. Materials a...

  10. Construction of 1.0 Mt/a Aromatics Unit Kicked off at PetroChina's Urumqi Petrochemical Complex

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ One of the major aromatics projects at the PetroChina Urumqi Petrochemical Company - the construction of 1.0 Mt/a paraxylene/aromatics integrated unit was officially kicked off on May 1, 2008 in Urumqi. The investment in this unit totals 3.867 billion RMB, making this unit the larg-est single-series one-million-ton-class aromatics integrated unit among the world's similar units.

  11. Comparative evaluation of fracture resistance of root dentin to resin sealers and a MTA sealer: An in vitro study

    Directory of Open Access Journals (Sweden)

    Jyothi Mandava

    2014-01-01

    Full Text Available Background: Endodontic obturating materials should form monoblocks, reinforcing the treated teeth against fracture. Aim: To evaluate and compare the effect of two resin sealers and a MTA sealer on the fracture resistance of endodontically treated teeth. Materials and Methods: Fifty single-rooted mandibular premolars, decoronated at cemento-enamel junction, were divided into 5 groups (n = 10 each. Group 1 and group 2 served as negative and positive controls. Cleaning and shaping of root canals was done using ProTaper rotary files and 3% sodium hypochlorite irrigation. Obturation was done using AH plus (Dentsply, Germany (group 3, MetaSEAL (Parkell, USA (group 4, MTA Fillapex (Angeles, Brazil (group 5 sealers and gutta-percha. Teeth were subjected to vertical loading using a universal testing machine and the point at which fracture of the roots occurred was recorded. The data was subjected to statistical analysis using one way analysis of variance (ANOVA followed by pair-wise comparison using Tukey′s Post-hoc test. Results: AH Plus showed better fracture resistance among the sealer groups. Statistically, no significant difference was found between MetaSEAL and Fillapex groups. Conclusion: MTA Fillapex as a root canal sealer was not able to reinforce the tooth against fracture.

  12. Periradicular Tissue Responses to Biologically Active Molecules or MTA When Applied in Furcal Perforation of Dogs' Teeth

    Directory of Open Access Journals (Sweden)

    Anna Zairi

    2012-01-01

    Full Text Available The aim of this study was the comparative evaluation of inflammatory reactions and tissue responses to four growth factors, or mineral trioxide aggregate (MTA, or a zinc-oxide-eugenol-based cement (IRM as controls, when used for the repair of furcal perforations in dogs’ teeth. Results showed significantly higher inflammatory cell response in the transforming growth factorβ1 (TGFβ1 and zinc-oxide-eugenol-based cement (IRM groups and higher rates of epithelial proliferation in the TGFβ1, basic fibroblast growth factor (bFGF, and insulin growth factor-I (IGF-I groups compared to the MTA. Significantly higher rates of bone formation were found in the control groups compared to the osteogenic protein-1 (OP-1. Significantly higher rates of cementum formation were observed in the IGF-I and bFGF groups compared to the IRM. None of the biologically active molecules can be suggested for repairing furcal perforations, despite the fact that growth factors exerted a clear stimulatory effect on cementum formation and inhibited collagen capsule formation. MTA exhibited better results than the growth factors.

  13. Sealing ability of MTA used as a root end filling material: effect of the sonic and ultrasonic condensation.

    Science.gov (United States)

    Bernabé, Pedro Felício Estrada; Gomes-Filho, João Eduardo; Bernabé, Daniel Galera; Nery, Mauro Juvenal; Otoboni-Filho, José Arlindo; Dezan-Jr, Eloi; Cintra, Luciano Tavares Angelo

    2013-01-01

    Despite the excellent properties of mineral trioxide aggregate (MTA), the condensation technique may have some influence in its sealing ability. The purpose of this study was to compare the sealing ability of sonic and ultrasonic setting of MTA. Thirty-four extracted human teeth had their canals prepared and filled with Sealapex sealer and gutta-percha using the active lateral condensation technique. The teeth were rendered waterproof and apicoectomy performed at 3 mm from the apex. Root-end cavities (3.0 mm deep and 1.4 mm diameter) were prepared with diamond ultrasonic tips. The root-end cavities were filled with Pro-Root MTA® with ultrasonic vibration, sonic vibration or no vibration. The positive control group did not receive any material while the negative control group was totally rendered waterproof. After material set, the specimens were immersed in Rodhamine B for 24 h, under vacuum in the first 15 min, then washed, dried and split longitudinally for evaluating the infiltration at the dentin/material interface. Data were analyzed using ANOVA and Tukey's tests at 5% significance level. Sonic vibration promoted the lowest infiltration values (p<0.05). It was concluded that sonic vibration could be considered an efficient aid to improve the sealing ability of MTA when used as root-end filling material. PMID:23780366

  14. Push-out bond strength of MTA HP, a new high-plasticity calcium silicate-based cement.

    Science.gov (United States)

    Silva, Emmanuel Jnl; Carvalho, Nancy Kudsi; Zanon, Mayara; Senna, Plínio Mendes; DE-Deus, Gustavo; Zuolo, Mário Luis; Zaia, Alexandre Augusto

    2016-06-14

    This study was designed to investigate the resistance to dislodgment provided by MTA HP, a new high-plasticity calcium silicate-based cement. Biodentine and White MTA Angelus were used as reference materials for comparison. Three discs 1 ± 0.1 mm thick were obtained from the middle third of the roots of 5 maxillary canines. Three 0.8-mm-wide holes were drilled on the axial surface of each root disc. Standardized irrigation was performed. Then the holes were dried with paper points and filled with one of the three tested cements. The filled dental slices were immersed in a phosphate-buffered saline (PBS) solution (pH 7.2) for 7 days before the push-out assessment. The Kruskal-Wallis test was applied to assess the effect of each endodontic cement on the push-out bond strength. Mann-Whitney with Bonferroni correction was used to isolate the differences. The alpha-type error was set at 0.05. All specimens had measurable push-out values and no premature failure occurred. There were significant differences among the materials (p Biodentine specimens had the highest push-out bond strength values (p Biodentine had higher dislodgment resistance than both MTA formulations.

  15. Research on preserving User Confidentiality in Cloud Computing – Design of a Confidentiality Framework

    Directory of Open Access Journals (Sweden)

    Chaitanya Dwivedula

    2013-03-01

    Full Text Available Cloud Computing creates a dynamicresource sharing platform that provides dataanalytically to the proficient users who are atdemand to access data present in the cloud. Asthis data is stored outside the data owner's boundaries, they are skeptical for utilizingcloud technology in order to store or accesstheir data from those external cloudproviders who are outside their own controlenvironment. There are many issues for theseactive clients (companies or individuals to bepetrified at the thought of using cloudcomputing paradigm. Some of the main issuesthat make the clients swear against Cloud Computing are generated from threeimportant security aspects: Confidentiality, Integrity, and Availability.In this Research, we focused only on securitymodels that relate Confidentiality issues. We performed a literature Review foranalyzing the existing confidentialityframeworks and security models. We thendesigned a new theoretical framework forconfidentiality in Cloud computing byextracting this literature. We expect this Framework when implemented practically inthe cloud computing paradigm, may generatehuge successful results that motivate the clients to transform their businesses on to Cloud.

  16. Evaluation in a competitive utility environment: the threat of confidentiality

    International Nuclear Information System (INIS)

    Utilities have become concerned that their competitors will desire access to energy-related data--including energy-efficiency data collected by utilities from their energy- efficiency programs--that they may regard as proprietary or confidential. In the future, disputes about confidentiality may focus more on costs and market information (as well as energy use and load data) than on energy-efficiency data per se. So far, the discussion has been limited to ratepayer-funded data. Consequently, many utilities are now requesting that the data (including evaluation data) they submit to their utility regulatory commissions remain confidential. Withholding utility information from the public is likely to harm the evaluation community that depends on the free flow of information for improving the practice of evaluation as well as for disseminating the lessons learned from particular program evaluations. Confidentiality will also have significant policy implications. In response to these concerns, in late 1995 and early 1996, we conducted a survey of state public utility commissions (PUCs) in the U.S. to assess: (1) the relative importance of the issue of confidential data in the regulatory arena; (2) the regulatory response to utility requests for confidentiality (e.g., formal policies, guidelines, rules and procedures, and decisions); and (3) the type of data filed as confidential with PUCS. We focus on the first two objectives of this study. In addition to our interviews, we reviewed selected state statutes, judicial and PUC decisions, rules and procedures, protective orders, and interim policy documents. Evaluators need to understand the context of confidentiality as well as the response of the regulatory commissions to confidentiality, because evaluators will need to adapt to a new environment where energy-related data and information may be harder to obtain and distribute. We propose that regulators conduct the following activities as soon as possible: 1. Assess

  17. Role of ERα in Governing EMT via MTA3 and Its Correlation with Apoptosis in HCC Cells%ERα通过MTA3调控EMT影响HCC细胞凋亡的研究

    Institute of Scientific and Technical Information of China (English)

    张宇华; 胡智明; 张成武; 吴伟顶; 刘杰; 尚敏杰; 赵大建

    2014-01-01

    目的 在肝细胞性肝癌(HCC)细胞中,探讨雌激素受体α(ERα)通过肿瘤转移相关基因3(MTA3)调控HCC细胞上皮-间质转换(EMT)对HCC细胞凋亡的影响.方法 使用雌二醇、氟维司琼干预HCC细胞中ER α的表达,采用real-time PCR测定信号通路中关键因子MTA3、EMT关键调节因子Snail、E-cadherin,及凋亡相关因子BAX在处理前后mRNA水平的改变,探讨ERa、MTA3改变与HCC细胞EMT和凋亡改变的关系.结果 ERα→ MTA3→Snail→E-cadherin信号通路各相关因子在部分HCC细胞(HepG2)中表达.雌二醇处理ER α高表达的HepG2细胞后,Snail表达下降,E-cadherin表达上升,EMT被抑制;BAX表达上升,HCC细胞凋亡增加.氟维司琼处理后,Snail表达上升,E-cadherin表达下降,EMT被激活;BAX表达下降,HCC细胞凋亡被抑制,而在ERα低表达的SMMC-7721细胞中,则没有明显差异.结论 ERα高表达的HCC细胞中,ERα→MTA3→Snail→E-cadherin信号通路存在并调节EMT.雌二醇可以激活ERα表达,抑制EMT进而抑制细胞凋亡,而氟维司琼则可以通过抑制ERα,激活EMT.

  18. Agreement among 2 x 2 Agreement Indices.

    Science.gov (United States)

    Conger, Anthony J.; Ward, David G.

    1984-01-01

    Sixteen measures of reliability for two-category nominal scales are compared. Upon correcting for chance agreement, there are only five distinct indices: Fleiss's modification of A-sub-1, the phi coefficient, Cohen's kappa, and two intraclass coefficients. Recommendations for choosing an agreement index are made based on definitions, magnitude,…

  19. Nuclear exports. Parliamentary control and confidentiality

    International Nuclear Information System (INIS)

    With its decision taken on 21. October 2014 (Az.: 2 BvE 5/11) the Federal Constitutional Court (BVerfG) decided during court proceedings between administrative bodies on the scope and limits of the parliamentary right of information. Even though the proceeding did not deal with nuclear exports but arm exports, foreign trade law, however, does not only designate an export licence obligation for military weapons but also for so called dual-use goods meaning goods, which can be used both for friendly as well as for military purposes. The export of these goods requires according to the so-called Dual-Use Regulation (EG) 428/2009 a licence. Annex I category 0 of the regulation (EG) 428/2009 lists a variety of nuclear materials, plants and equipment items for which this licence applies. In the same manner as arm exports, also exports of nuclear dual-use goods are being discussed in a special cabinet committee, the Federal Security Council (BSR), which shall coordinate cross-departmentally the German security and defence policy under consideration of economic interests and which categorises its results, according to the rules of procedure, as confidential. Also legally not regulated but common ''preliminary enquiries'' at the responsible Federal Ministry or rather Federal Office of Economics and Export Control by companies which plan an export and want to affirm the general approval for their export business prior to conclusion of contract take not only place for arm exports but also for nuclear dual-use goods. The decision by the Federal Constitutional Court can be applied to consultations about the authorisation of nuclear dual-use goods.

  20. A Comparative Study of Apical Healing of Open Apices Using MTA and Ca(OH2 Apical Plugs in Cats

    Directory of Open Access Journals (Sweden)

    M. H. Zarrabi

    2005-06-01

    Full Text Available Statement of problem: Endodontic treatment of necrotic teeth with open apices is a challenge. After ruling out surgery as a treatment scheme and introduction of the multivisit apexification which in turn had its disadvantages, apical plug seems to be a suitable substitute treatment plan for such cases. Apical plug makes the treatment through formation of a barrier against the obturating material in a single visit.Purpose: The purpose of this study was to compare histologically the periapical healing using MTA and calcium hydroxide apical plugs after intervals of 4 and 12 weeks in cats.Materials and Methods: In this clinical trial study 64 canines of 16 healthy and mature cats were divided into 3 groups after a periapical lesion formation by over instrumentation in the apical area with files up to no.120. The first group included 24 teeth on which MTA apical plug was applied. The second group included 24 teeth on which Ca (OH 2 apical plug was applied. In both groups the canals were filled with gutta percha and sealer. The third group included 16 control teeth whose canals were left empty after instrumentation and debridement. The access cavities of all teeth were sealed with varnish and amalgam and the vital perfusion of cats was performed in 4 and 12 week intervals. Statistical analysis was established by χ2 and independence test.Results: After 4 weeks, periapical healing in the first group was 90%, in the second group 80% and in the third group, it was only 12.5 %. After 12 weeks, periapical healing occurred in 100% of the MTA group, while it was 57.1% in the second and 40%in the third group .Generally, in the study of histological parameters of healing, no statistical significant difference was observed between the 2 experimental groups,although the MTA group results were much better than the Ca (OH 2 group especially at 12 weeks.Conclusion: The use of MTA apical plug is more effective than Ca (OH 2 in treatment of necrotic teeth with open

  1. Efficient Parallelization of a Dynamic Unstructured Application on the Tera MTA

    Science.gov (United States)

    Oliker, Leonid; Biswas, Rupak

    1999-01-01

    The success of parallel computing in solving real-life computationally-intensive problems relies on their efficient mapping and execution on large-scale multiprocessor architectures. Many important applications are both unstructured and dynamic in nature, making their efficient parallel implementation a daunting task. This paper presents the parallelization of a dynamic unstructured mesh adaptation algorithm using three popular programming paradigms on three leading supercomputers. We examine an MPI message-passing implementation on the Cray T3E and the SGI Origin2OOO, a shared-memory implementation using cache coherent nonuniform memory access (CC-NUMA) of the Origin2OOO, and a multi-threaded version on the newly-released Tera Multi-threaded Architecture (MTA). We compare several critical factors of this parallel code development, including runtime, scalability, programmability, and memory overhead. Our overall results demonstrate that multi-threaded systems offer tremendous potential for quickly and efficiently solving some of the most challenging real-life problems on parallel computers.

  2. Theoretical studies of the paramagnetic perovskites MTaO{sub 3} (M = Ca, Sr and Ba)

    Energy Technology Data Exchange (ETDEWEB)

    Ali, Zahid, E-mail: zahidf82@gmail.com [Center for Computational Materials Science, University of Malakand, Chakdara, Dir (Lower) (Pakistan); Khan, Imad; Ahmad, Iftikhar; Khan, M. Salman [Center for Computational Materials Science, University of Malakand, Chakdara, Dir (Lower) (Pakistan); Asadabadi, S. Jalali [Department of Physics, Faculty of Science, University of Isfahan, Hezar Gerib Avenue, Isfahan, 81744 (Iran, Islamic Republic of)

    2015-07-15

    In the present density functional studies, structural, mechanical and magneto-electronic properties of CaTaO{sub 3,} SrTaO{sub 3} and BaTaO{sub 3} perovskites have been investigated. The calculated structural parameters by DFT and analytical methods are found consistent with the experiments. The analytically calculated tolerance factors of these compounds as well as their mechanical properties show that they are stable in the cubic phase. Furthermore elastic properties show that these materials are ductile in nature and confirm that BaTaO{sub 3} is harder than the rest compounds. The calculated spin dependent magneto-electronic properties reveal the paramagnetic metallic nature of these compounds. The electrical conductivity curve demonstrates significant conductivity above room temperature. On the basis of the presented properties it is expected that these compounds could be efficient electrode materials and need experimental investigations. - Highlights: • MTaO{sub 3} (M = Ca, Sr and Ba) perovskites are investigated theoretically in the frame work of density functional theory. • Mechanical properties explain the stability of these compounds and show that BaTaO{sub 3} is more ductile. • The magneto-electronic studies reveal the paramagnetic metallic nature of these compounds. • Significant electrical conductivity is observed above room temperature.

  3. Comparison of the sealing ability of two root-end filling materials (MTA and CEM cement following retropreparation with ultrasonic or Er,Cr:YSGG laser

    Directory of Open Access Journals (Sweden)

    Razmi H

    2010-01-01

    Full Text Available "nBackground and Aims: Considering advantages and disadvantages of mineral trioxide aggregate (MTA, Calcium Enriched Mixture (CEM cement has been developed recently. The purpose of this study was to compare the apical microleakage of the root-end cavities prepared by ultrasonic or Er,Cr:YSGG laser and filled with MTA or CEM cement. "nMaterials and Methods: Eighty single-rooted, extracted human teeth were instrumented and obturated. Root-end resection was made by removing 3 mm of the apex. The teeth were randomly divided into two experimental (n=30 and two positive and negative control (n=10 groups. After that, the retrograde cavities were prepared using ultrasonic or Er,Cr: YSGG Laser. According to the root-end filling materials (MTA or CEM cement, each group was then divided into two subgroups. Finally, specimens were cleared for assessing the amount of apical dye (Indian ink penetration. The data were analyzed using Kruskall-Wallis and Dunn tests. "nResults: Laser/CEM cement group showed significantly the lowest mean apical dye penetration. There were no statistically significant differences between Laser/MTA, ultrasonic/MTA and ultrasonic/CEM cement groups. "nConclusion: Based on the findings of this study, CEM cement demonstrated lower rate of apical leakage compared with MTA, when the root-end cavities prepared with Er,Cr:YSGG Laser. The sealing ability of MTA was not different following root-end preparation by ultrasonic or Er,Cr:YSGG Laser.

  4. Histopathologic Responses of the Dental Pulp to Calcium-Enriched Mixture (CEM) and Mineral Trioxide Aggregate (MTA) in Diabetic and Non-Diabetic Rats.

    Science.gov (United States)

    Madani, Zahra Sadat; Haddadi, Azam; Mesgarani, Abbas; Seyedmajidi, Maryam; Mostafazadeh, Amrollah; Bijani, Ali; Ashraphpour, Manouchehr

    2014-01-01

    Diabetes mellitus is a chronic disease which affects the healing ability of the pulp and periodontium. The aim of the present study was to assess the histopathologic response of dental pulp to pulp capping using MTA or CEM cement in diabetic rats. Thirty two Wistar male rats aged between 8 and 10 weeks (weight: 200-250g) were divided into two groups of diabetic (n=16) and healthy (n=16) animals and then subdivided into MTA and CEM subgroups. In each group, 10 MTA treated, 10 CEM treated and 12 intact (without any intervention) teeth were analyzed. Intact teeth were considered as a baseline inflammation control. Then, class I cavity was made in the maxillary first molars teeth with pinpoint pulpal exposure. Either MTA or CEM cement was then placed over exposed pulp as pulp capping agent and the cavities were restored using resin- modified glass ionomer cement. Both teeth of rats in subgroups remained intact without any intervention. After four weeks, the rats were sacrificed and the teeth were subjected to histological evaluation in terms of inflammation intensity, dentin bridge formation and dentin bridge continuity. The CEM cement treated diabetic rats exhibited a significant higher inflammatory response when compared to healthy control group (P=0.004) whereas, MTA treated diabetic rats did not exhibit a significant higher inflammatory response in comparison to healthy controls. There was no significant difference between MTA and CEM cement in the induction of dentin bridge formation in diabetic and healthy controls. This preliminary study suggests that MTA is a superior dental material than CEM cement for pulp therapy in subjects with diabetes. PMID:25635253

  5. Comparación in vitro de la microfiltración apical del MTA ProRoot y Angelus en dientes monorradiculares In vitro comparison of the MTA microlakage ProRoot apical and Angelus in teeth single-rooted

    Directory of Open Access Journals (Sweden)

    G.E. Romero Romero

    2012-06-01

    Full Text Available Antecedentes: Uno de los retos en endodoncia es la obturación de los conductos con ápices abiertos permitiendo su sellado, evitando la microfiltración y la salida del material obturador hacia los tejidos periapicales, por esta razón actualmente se utilizan materiales como el Mineral Trióxido Agregado (MTA para proporcionar un tope apical que garantice el sellado del conducto radicular evitando la contaminación bacteriana. Objetivos: Comparar la microfiltración apical in vitro del MTA de dos casas comerciales con y sin hidróxido de calcio en dientes monorradiculares con ápices amplios. Materiales y métodos: Para este estudio se utilizaron 80 dientes humanos monorradiculares extraídos, divididos en 4 grupos, MTA "Proroot" con y sin hidróxido de calcio y MTA "Angelus" con y sin hidróxido de calcio, sumergidos en una sustancia buffer simulando el periápice y posteriormente se realizó coloración con tinta china y evaluación de la microfiltración por medio del proceso de diafanación. Resultados: En el estudio todos los grupos presentaron algún grado de microfiltración, siendo los de mayor frecuencia los dientes obturados con MTA Angelus sin hidróxido de calcio y el que menos presentó fueron los obturados con MTA Proroot sin hidróxido de calcio. Conclusiones: Tanto el MTA Angelus como el MTA Proroot se pueden usar como barrera apical sin necesidad de usar hidróxido calcio, sin embargo es necesario afinar las técnicas y procedimientos en futuros estudios que permitan la toma de decisiones clínicas.Background: One of the challenges in endodontics is root canal filling with open and wide apex, which allowing it to seal, preventing microleakage and the output of the filling material into periapical tissues, therefore currently used materials such as Mineral trioxide aggregate (MTA to provide an apical stop to ensure the sealing of the root canal to avoid bacterial contamination. Objectives: To compare the in vitro apical

  6. Computer Security: confidentiality is everybody’s business

    CERN Multimedia

    Stefan Lueders, Computer Security Team

    2015-01-01

    Recently, a zip file with confidential information was mistakenly made public on one of CERN’s websites. Although the file was only intended for members of an internal committee, when placing it onto the CERN website, someone made a mistake when setting the access permissions and, thus, made the file accessible to everyone visiting the site!   Unfortunately, this is but one example of such mistakes. We have seen other documents made accessible to a much wider audience than originally intended… CERN takes serious measures to ensure the confidentiality of data. Confidential or “sensitive” documents (following the nomenclature set out in the CERN Data Protection Policy) deserve professional handling and access protections given only to the people who really need to access them. As such, they must not be widely circulated as attachments in e-mails and, most definitely, must not be stored on random public websites for the sole purpose of shari...

  7. Independent consultants : fiduciary duties, trade secrets and confidential information

    International Nuclear Information System (INIS)

    Because of cutbacks and downsizing within the petroleum industry, it has become one of the largest users of contract personnel to provide services that were previously provided by senior levels of management. This paper explored the application of common law fiduciary duties and the duty of confidence to the independent workforce. It examined to what extent fiduciary duties apply to independent consultants and the best way for the employer to protect itself from the potential misuse of confidential information. Part 1 of the paper described fiduciary duties. A fiduciary relationship was described as one that possesses the following three characteristics: (1) the fiduciary has scope for the exercise of some discretion of power, (2) the fiduciary can unilaterally exercise that power to affect the beneficiary's practical interests, and (3) the beneficiary is peculiarly vulnerable to the fiduciary holding the discretion of power. Three examples of how the courts treated some arguments regarding fiduciaries were presented. Part 2 of this paper discussed how trade secrets and confidential information should be handled. It was explained, that regardless of fiduciary duties, the unauthorized use of confidential information by an independent contractor can give rise to liability and an award of damages by the courts. Some examples where the Supreme Court of Canada found breach of confidence by a party were presented. Information communicated from an employer to an employee can be divided into the following three categories: (1) publicly accessible and not confidential, (2) confidential and must be treated as such while an employee is employed, but if learned becomes part of the employees skill and knowledge, and (3) specific confidential trade secrets that cannot lawfully be used for anyone's benefit but the employer's. Issues regarding defining rights and obligations by contract were also discussed

  8. 77 FR 69585 - Greenhouse Gas Reporting Program: Proposed Amendments and Confidentiality Determinations for...

    Science.gov (United States)

    2012-11-20

    ... started on October 16, 2012 (77 FR 63538). This document announces the extension of the deadline for... AGENCY 40 CFR Part 98 Greenhouse Gas Reporting Program: Proposed Amendments and Confidentiality... rule titled ``Greenhouse Gas Reporting Program: Proposed Amendments and Confidentiality...

  9. 75 FR 28070 - Comment Request for Information Collection: “Confidentiality & Disclosure of State Unemployment...

    Science.gov (United States)

    2010-05-19

    ... Request for Information Collection: ``Confidentiality & Disclosure of State Unemployment Compensation... Confidentiality and Disclosure of State Unemployment Compensation Information final rule and State Income and.... ADDRESSEE: Submit written comments to the Employment and Training Administration, Office of...

  10. 77 FR 69820 - Access to Confidential Business Information by Electronic Consulting Services, Inc., and Its...

    Science.gov (United States)

    2012-11-21

    ... AGENCY Access to Confidential Business Information by Electronic Consulting Services, Inc., and Its... Protection Agency (EPA). ACTION: Notice. SUMMARY: EPA has authorized its contractor, Electronic Consulting... claimed or determined to be Confidential Business Information (CBI). DATES: Access to the...

  11. 75 FR 70235 - Access to Confidential Business Information by Industrial Economics, Incorporated

    Science.gov (United States)

    2010-11-17

    ... AGENCY Access to Confidential Business Information by Industrial Economics, Incorporated AGENCY... will authorize its contractor, Industrial Economics, Incorporated (IEc) to access Confidential Business..., Industrial Economics, Incorporated (IEc) will assist the Office of Enforcement and Compliance...

  12. Public expectations concerning confidentiality protection of adolescents' sexual and reproductive health care in Lithuania

    DEFF Research Database (Denmark)

    Jaruseviciene, Lina; Zaborskis, Apolinaras; Lazarus, Jeffrey Victor

    2014-01-01

    OBJECTIVE: An adolescent's right to confidential healthcare is protected by international law and professional consensus. However, parental and social support for confidential sexual and reproductive health (SRH) services, in particular, varies greatly. This study documents Lithuanian residents' ...

  13. MTA与Vitapex用于根尖诱导成形术的疗效分析%Efficacy analysis of MTA and Vitapex used for apexification

    Institute of Scientific and Technical Information of China (English)

    蔡泽斌; 徐小荣; 苟培芳; 王久利

    2013-01-01

    目的 探讨MTA 与Vitapex 用于根尖诱导成形术的疗效.方法 选择34 颗患有牙髓炎、牙髓坏死、急慢性根尖周炎的恒牙,随机分为两组:MTA 组和Vitapex 组,MTA 组16 例,Vitapex 组18 例,治疗3 个月后比较其效果.结果 3 个月后MTA 组成功率达93.12%;Vitapex 组为83.33%,经x2 检验两组差异有统计学意义(P < 0.05).结论 MTA 有良好的生物相容性,能够更有效的诱导牙根组织的形成,在根尖诱导成形术中效果明显优于Vitapex.

  14. Evaluation of reparative dentin formation of ProRoot MTA, Biodentine and BioAggregate using micro-CT and immunohistochemistry

    Science.gov (United States)

    Kim, Jia; Song, Young-Sang; Min, Kyung-San; Kim, Sun-Hun; Koh, Jeong-Tae

    2016-01-01

    Objectives The purpose of this study was to assess the ability of two new calcium silicate-based pulp-capping materials (Biodentine and BioAggregate) to induce healing in a rat pulp injury model and to compare them with mineral trioxide aggregate (MTA). Materials and Methods Eighteen rats were anesthetized, cavities were prepared and the pulp was capped with either of ProRoot MTA, Biodentine, or BioAggregate. The specimens were scanned using a high-resolution micro-computed tomography (micro-CT) system and were prepared and evaluated histologically and immunohistochemically using dentin sialoprotein (DSP). Results On micro-CT analysis, the ProRoot MTA and Biodentine groups showed significantly thicker hard tissue formation (p Biodentine and BioAggregate groups, a thick, homogeneous hard tissue barrier was observed. The ProRoot MTA specimens showed strong immunopositive reaction for DSP. Conclusions Our results suggest that calcium silicate-based pulp-capping materials induce favorable effects on reparative processes during vital pulp therapy and that both Biodentine and BioAggregate could be considered as alternatives to ProRoot MTA. PMID:26877988

  15. Agreement in Bloomfield.

    Science.gov (United States)

    Langendoen, D. Terence; McDaniel, Dana S.

    A discussion of Leonard Bloomfield's theory on grammatical agreement examines agreement within Bloomfield's overall scheme of syntactic analysis and relates it to current work in syntax. Bloomfield's three types of agreement (concord, government, and cross-reference) are outlined and compared to the contemporary distinction between pro-drop and…

  16. Sealing ability of MTA, Super EBA, Vitremer and amalgam as root-end filling materials Capacidade de selamento de MTA, Super EBA, Vitremer e amálgama como materiais retrobturadores

    Directory of Open Access Journals (Sweden)

    Cecília Luiz Pereira

    2004-12-01

    Full Text Available This study evaluated the root-end sealing ability of mineral trioxide aggregate (MTA Angelus, reinforced zinc oxide-eugenol cement (Super EBA, resin-modified glass ionomer (Vitremer and zinc-free amalgam (GS-80 (control. The root canals of eighty human lower molars were accessed, cleansed, shaped and obturated. Apexes were resected and cavities were prepared. Teeth were divided into 4 groups of 40 cavities, root-end filled with the materials, and immersed in methylene blue for 72 h at 37°C. Roots were then sectioned transversally at each millimeter and evaluated under magnification, observing the dye penetration in each section. Data were evaluated using Kruskal-Wallis test at a 5% level of significance, showing the differences among all materials (p Este estudo avaliou a capacidade de selamento do agregado trióxido mineral (MTA Angelus, de um cimento de óxido de zinco e eugenol reforçado (Super EBA, de um cimento de ionômero de vidro reforçado por resina (Vitremer e de um amálgama sem zinco (GS-80 (controle. Os canais radiculares de oitenta molares inferiores humanos foram acessados, limpos, modelados e obturados. Os ápices foram seccionados, e as cavidades, preparadas. Os dentes foram divididos em 4 grupos de 40 cavidades, retrobturados com os materiais e imersos em azul de metileno por 72 h a 37°C. As raízes foram então seccionadas transversalmente a cada milímetro e avaliadas sob aumento, observando-se a penetração de corante a cada corte. Os dados foram avaliados usando-se o teste de Kruskal-Wallis (5%, que mostrou diferenças entre todos os materiais (p < 0,001. A ordem crescente de infiltração marginal foi MTA < Vitremer < Super EBA < amálgama. Níveis mais altos de infiltração foram observados nos cortes de primeiro milímetro de amálgama, Vitremer e MTA, quando comparados com o terceiro milímetro (p < 0,05.

  17. CRAC: Confidentiality Risk Analysis and IT-Architecture Comparison of Business Networks

    NARCIS (Netherlands)

    Morali, Ayse; Zambon, Emmanuele; Etalle, Sandro; Wieringa, Roel

    2009-01-01

    The leakage of confidential information (e.g.\\ industrial secrets, patient records and user credentials) is one of the risks that have to be accounted for and mitigated by organizations dealing with confidential data. Unfortunately, assessing confidentiality risk is challenging, particularly in the

  18. 75 FR 1053 - Access to Confidential Business Information by Industrial Economics, Incorporated

    Science.gov (United States)

    2010-01-08

    ... AGENCY Access to Confidential Business Information by Industrial Economics, Incorporated AGENCY... will authorize its contractor, Industrial Economics, Incorporated (IEc) to access Confidential Business... Confidential Business Information Under EPA Contracts No. EP-W-6-065 and EP07H000213, Industrial...

  19. 45 CFR 5.65 - Exemption four: Trade secrets and confidential commercial or financial information.

    Science.gov (United States)

    2010-10-01

    ... be expected if the information is disclosed? (c) Designation of certain confidential information. A... Exemption four: Trade secrets and confidential commercial or financial information. We will withhold trade... confidential. (a) Trade secrets. A trade secret is a secret, commercially valuable plan, formula, process,...

  20. Shareholders' agreements in Denmark

    DEFF Research Database (Denmark)

    Werlauff, Erik

    2010-01-01

    The article warns that with effect from 1 March 2010, the new Danish Companies Act (on public and private limited companies) has seriously weakened the effect of shareholders’ agreements which have been entered into on Danish companies. These agreements (in the act’s new terminology: “owners......’ agreements”) cannot bind the company within the sense of company law under the new state of law, and voting rights agreements, agreements on right of pre-emption etc. will therefore only apply at the level of contract law between the parties to the agreement. This article for European Business Law Review...... analyses the consequences of this. Rights and duties in the owners’ agreements must now be reiterated to the greatest possible extent in the company’s articles of association so that the precepts become binding on the company and its management. Whether the parties to the owners’ agreement can be required...

  1. Confidencialidad e intimidad Confidentiality and privacy

    Directory of Open Access Journals (Sweden)

    M. Iraburu

    2006-01-01

    patients frequently continues to be violated, perhaps because we live in a society that trivialises these questions, and the health milieu is not immune to this way of thinking. Besides, the new information technologies have added a new danger by enormously facilitating access to personal data. This article reviews the ethical and legal aspects of this issue, the results of research carried out on the way the professionals of eight Spanish hospitals deal with confidentiality, and some recommendations are outlined in an attempt to encourage reflection by the professionals who interact in a scenario where the patient is obliged to lay himself bare in body and soul.

  2. Multiparametric topological analysis (MTA) for the study of the primary CR composition: Performances with Auger simulated data

    Science.gov (United States)

    D'Urso, D.; Ambrosio, M.; Aramo, C.; Guarino, F.; Valore, L.; Pierre Auger Collaboration

    2008-04-01

    We describe the application of a multiparametric analysis to estimate the UHE Cosmic Rays composition. The proposed method, MTA (Multiparametric Topological Analysis), is based on the study of the correlations among different shower observables. This technique is designed to fully exploit the complementarity of Auger fluorescence and ground array data. In the present work, we report the results of the application to Conex showers, fully simulated through the Auger detector, using only parameters describing the longitudinal development of air showers as recorded by fluorescence detector for hybrid data.

  3. Data confidentiality and data handling in research: a workshop report

    Directory of Open Access Journals (Sweden)

    Alison Hinds

    2008-12-01

    Outputs Workshop delegates were largely supportive of the recommendations made in the draft consensus document. Key recommendations included: a campaign at a national and local level highlighting the need to use personal patient records to inform research; standard operating procedures to ensure clearly defined processes are being followed; and the requirement for all patient data to be treated as confidential.

  4. Confidential data in a competitive utility environment: A regulatory perspective

    Energy Technology Data Exchange (ETDEWEB)

    Vine, E.

    1996-08-01

    Historically, the electric utility industry has been regarded as one of the most open industries in the United States in sharing information but their reputation is being challenged by competitive energy providers, the general public, regulators, and other stakeholders. As the prospect of competition among electricity power providers has increased in recent years, many utilities have been requesting that the data they submit to their utility regulatory commissions remain confidential. Withholding utility information from the public is likely to have serious and significant policy implications with respect to: (1) consumer education, the pursuit of truth, mutual respect among parties, and social cooperation; (2) the creation of a fair market for competitive energy services; (3) the regulatory balance; (4) regional and national assessments of energy-savings opportunities; (5) research and development; and (6) evaluations of utility programs, plans, and policies. In a telephone survey of all public utility commissions (PUCs) that regulate electric and gas utilities in the U.S., we found that almost all PUCs have received requests from utility companies for data to be filed as confidential, and confidential data filings appear to have increased (both in scope and in frequency) in those states where utility restructuring is being actively discussed. The most common types of data submitted as confidential by utilities dealt with specific customer data, market data, avoided costs, and utility costs.

  5. 24 CFR 5.2007 - Certification of status and confidentiality.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false Certification of status and confidentiality. 5.2007 Section 5.2007 Housing and Urban Development Office of the Secretary, Department of Housing and Urban Development GENERAL HUD PROGRAM REQUIREMENTS; WAIVERS Protection for Victims of...

  6. Decisions about Confidentiality in Medical Student Mental Health Settings.

    Science.gov (United States)

    Lindenthal, Jacob Jay; And Others

    1984-01-01

    Examined responses of psychologists and psychiatrists in medical schools (N=59) to vignettes representing student problems. Results suggested practitioners were generally unwilling to break confidentiality in response to problems involving suicidal tendencies, sexual coercion/seduction, social transgressions, or falsifying data. Only suggestions…

  7. 28 CFR 0.39b - Confidentiality of information.

    Science.gov (United States)

    2010-07-01

    ...-Office of Professional Responsibility § 0.39b Confidentiality of information. The Counsel shall not disclose the identity of any person submitting an allegation of misconduct or reprisal pursuant to 28 CFR 0.39a(a)(1) or (2) unless the person consents to the disclosure of his identity or the disclosure...

  8. 15 CFR 295.9 - Protection of confidential information.

    Science.gov (United States)

    2010-01-01

    ... confidential basis in connection with the activities of any business or joint research and development venture...) Information on the business operation of any member of the business or joint venture; (2) Trade secrets possessed by any business or any member of the joint venture....

  9. [Confidentiality in medical oaths: (When the white crow becomes gray...)].

    Science.gov (United States)

    Gelpi, R J; Pérez, M L; Rancich, A M; Mainetti, J A

    2000-01-01

    Confidentiality, together with the ethical principles of beneficence and non-maleficence, is the most important rule in Medical Oaths at the present time. However, the scientific-technical advances in medicine have made this rule one of the most controversial ones because of its exceptions. In consequence, the aim of the present paper is to comparatively analyze the rule of confidentiality in Medical Oaths of different places, times, origins and in different versions of the Hippocratic Oath in order to determine what should be kept a secret and with what degree of commitment (absolute or "prima facie"). Of the thirty six analyzed Oaths, twenty-seven manifest this rule and nine do not. No relation was found between the manifestation of this rule and the place, time, origin and different versions of the Hippocratic Oath. Most pledges suggest not to reveal what has been seen or heard during the medical act, the same as in the Hippocratic Oath. Seven texts point out that confidentiality should be absolute and four give exceptions in connection with beneficence and justice principles and the moral duty of causing no damage to third parties. Two pledges specify protection of privacy. In conclusion, today confidentiality is considered to be a moral duty for the benefit of the patient and out of consideration for his autonomy; however, at the present time in medicine the duty of keeping absolute secrecy is being reconsidered.

  10. 50 CFR 229.11 - Confidential fisheries data.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 7 2010-10-01 2010-10-01 false Confidential fisheries data. 229.11 Section 229.11 Wildlife and Fisheries NATIONAL MARINE FISHERIES SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE MARINE MAMMALS AUTHORIZATION FOR COMMERCIAL FISHERIES UNDER THE...

  11. Effective verification of confidentiality for multi-threaded programs

    NARCIS (Netherlands)

    Ngo, Minh Tri; Stoelinga, Mariëlle; Huisman, Marieke

    2014-01-01

    This paper studies how confidentiality properties of multi-threaded programs can be verified efficiently by a combination of newly developed and existing model checking algorithms. In particular, we study the verification of scheduler-specific observational determinism (SSOD), a property that charac

  12. IT Confidentiality Risk Assessment for an Architecture-Based Approach

    NARCIS (Netherlands)

    Morali, Ayse; Zambon, Emmanuele; Etalle, Sandro; Overbeek, Paul

    2008-01-01

    Information systems require awareness of risks and a good understanding of vulnerabilities and their exploitations. In this paper, we propose a novel approach for the systematic assessment and analysis of confidentiality risks caused by disclosure of operational and functional information. The appro

  13. 15 CFR 30.60 - Confidentiality of Electronic Export Information.

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Confidentiality of Electronic Export Information. 30.60 Section 30.60 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade BUREAU OF THE CENSUS, DEPARTMENT OF COMMERCE FOREIGN TRADE REGULATIONS General Administrative...

  14. Analysis of LYSA-calculus with explicit confidentiality annotations

    DEFF Research Database (Denmark)

    Gao, Han; Nielson, Hanne Riis

    2006-01-01

    Recently there has been an increased research interest in applying process calculi in the verification of cryptographic protocols due to their ability to formally model protocols. This work presents LYSA with explicit confidentiality annotations for indicating the expected behavior of target prot...

  15. Secondary School Administrators' Attitudes toward Confidentiality in School Counseling

    Science.gov (United States)

    O'Connell, William P.

    2012-01-01

    The school counseling literature emphasizes the importance of confidentiality in the counseling relationship. In some circumstances, school policy may require disclosure of content discussed in counseling unrelated to threat of harm to self or others. This pilot study investigated secondary school principals' attitudes toward the practice of…

  16. Bullet-proofing your employment contracts and consulting agreements

    Energy Technology Data Exchange (ETDEWEB)

    Johnston, B.B. [Fraser Milner, Calgary, AB (Canada); Mitchell, T.D. [Laird Armstrong, Calgary, AB (Canada)

    1999-10-01

    An overview of how to draft a basic contract was presented. The types and functions of contractual clauses were described and an example of the structure of a typical contract was included. Drafting issues and validity issues were also discussed. The distinction between an independent contractor and an employee was clarified and the legal ramifications for both were reviewed. The presentation also included examples of some simple consulting agreements along with their function and analysis of key provisions such as services, term, remuneration, confidential information, non-competition, non-disclosure, and indemnity.

  17. Bullet-proofing your employment contracts and consulting agreements

    International Nuclear Information System (INIS)

    An overview of how to draft a basic contract was presented. The types and functions of contractual clauses were described and an example of the structure of a typical contract was included. Drafting issues and validity issues were also discussed. The distinction between an independent contractor and an employee was clarified and the legal ramifications for both were reviewed. The presentation also included examples of some simple consulting agreements along with their function and analysis of key provisions such as services, term, remuneration, confidential information, non-competition, non-disclosure, and indemnity

  18. Bullet-proofing your employment contracts and consulting agreements

    Energy Technology Data Exchange (ETDEWEB)

    Johnston, B.B. [Fraser Milner, Calgary, AB (Canada); Mitchell, T.D. [Laird Armstrong, Calgary, AB (Canada)

    1999-07-01

    An overview of how to draft a basic contract was presented. The types and functions of contractual clauses were described and an example of the structure of a typical contract was included. Drafting issues and validity issues were also discussed. The distinction between an independent contractor and an employee was clarified and the legal ramifications for both were reviewed. The presentation also included examples of some simple consulting agreements along with their function and analysis of key provisions such as services, term, remuneration, confidential information, non-competition, non-disclosure, and indemnity.

  19. Clinical observation of repairing the perforation of pulp floor with MTA%MTA修补髓底穿孔的临床疗效观察

    Institute of Scientific and Technical Information of China (English)

    邹彤蔚

    2012-01-01

    目的 评价三氧化物多聚体(mineral trioxide aggregate,MTA)、磷酸锌水门汀(ZPC)和银汞合金(amalgam)应用于髓室底穿孔修补的临床疗效.方法 选取髓底穿孔的患牙50颗,随机分成3组,均做严密的根管治疗,之后分别用MTA、ZPC、银汞合金修补髓空底,3组均定期复查,观察临床效果及X线片结果.结果 经过1年后复查,MTA修补髓室底穿孔效果明显高于ZPC和银汞合金(P<0.05).结论 MTA作为一种新型生物材料,具有良好的封闭性,组织相容性和生物活性,是修补髓室底穿孔良好修复材料,同时提高牙齿保存率,在临床广泛应用.%Objective To observe clinical effects of MTA.ZPC and SA on repairing the perforation of pulp floors. Methods 50 cases were selected and divided into three groups. They underwent rigorous root canal therapy and then the pulp floors were repaired with MTA.ZPC and SA. After one-year follow up,we observed clinical and X-ray effects. Results The success rate with MTA was apparently greater than those with ZPC and SA. Conclusions MTA has nice closure and histolgical compatibility and biological activity, MTA is a nice repairing material to treat the perforation of pulp floors,and it raises survival rate of teeth.

  20. The Helsinki Agreement

    Science.gov (United States)

    Babel: Journal of the Australian Federation of Modern Language Teachers' Associations, 1977

    1977-01-01

    A reprint of sections of the Helsinki agreement dealing with foreign languages and civilization, and cooperation and exchanges in the field of education. The agreement supports wider knowledge of foreign languages and promotes exchanges, cooperation, lexicography, and specialized programs in adult education. (AMH)

  1. Agreement on African Venture

    Institute of Scientific and Technical Information of China (English)

    LAN XINZHEN

    2010-01-01

    @@ China's biggest aluminum producer Aluminum Corp.China Ltd.(Chalco) signed a binding agreement with the world's second largest mining company,Rio Tinto,on July 29 in Beijing.The agreement will establish a joint venture to develop and operate the Simandou iron ore project in Guinea,Africa.

  2. The Homomorphic Key Agreement

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    There are various challenges that are faced in group communication, so it is necessary to ensure session key. Key agreement is the fundamental cryptographic primitive for establishing a secure communication. It is a process of computing a shared secret contributed by two or more entities such that no single node can predetermine the resulting value. An authenticated key agreement is attained by combining the key agreement protocol with digital signatures. After a brief introduction to existing key agreement in group communication, Making use of the additive-multiplicative homomorphism in the integer ring defined by Sander and Tschudin: A new protocols, called the homomorphism key agreement, was designed, which can be self-contributory, robust, scalable and applicable in group communication.

  3. An efficient steganography method for hiding patient confidential information.

    Science.gov (United States)

    Al-Dmour, Hayat; Al-Ani, Ahmed; Nguyen, Hung

    2014-01-01

    This paper deals with the important issue of security and confidentiality of patient information when exchanging or storing medical images. Steganography has recently been viewed as an alternative or complement to cryptography, as existing cryptographic systems are not perfect due to their vulnerability to certain types of attack. We propose in this paper a new steganography algorithm for hiding patient confidential information. It utilizes Pixel Value Differencing (PVD) to identify contrast regions in the image and a Hamming code that embeds 3 secret message bits into 4 bits of the cover image. In order to preserve the content of the region of interest (ROI), the embedding is only performed using the Region of Non-Interest (RONI).

  4. [Ethics in pediatric emergencies: Care access, communication, and confidentiality].

    Science.gov (United States)

    Benoit, J; Berdah, L; Carlier-Gonod, A; Guillou, T; Kouche, C; Patte, M; Schneider, M; Talcone, S; Chappuy, H

    2015-05-01

    Children suffer most from today's increasing precariousness. In France, access to care is available for all children through various structures and existing measures. The support for foreign children is overseen by specific legislation often unfamiliar to caregivers. Pediatric emergencies, their location, organization, actors, and patient flow are a particular environment that is not always suitable to communication and may lead to situations of abuse. Communication should not be forgotten because of the urgency of the situation. The place of the child in the dialogue is often forgotten. Considering the triangular relationship, listening to the child and involving the parents in care are the basis for a good therapeutic alliance. Privacy and medical confidentiality in pediatric emergencies are governed by law. However, changes in treatments and medical practices along with the variety of actors involved imply both individual and collective limitations, to the detriment of medical confidentiality.

  5. Medical confidentiality versus disclosure: Ethical and legal dilemmas.

    LENUS (Irish Health Repository)

    Agyapong, V I O

    2009-02-01

    A case is described of a fifty year old single man who made disclosures about criminal sexual practices during a psychiatric assessment. In common practice with other professional men, a doctor is under a duty not to disclose, without the consent of his patient, information which he has gained in his professional capacity other than in exceptional circumstances. We discuss the ethical and legal considerations surrounding issues of medical confidentiality and the dilemma that sometimes face clinicians, when they feel obliged, in the public interest, to disclose information they have gained in confidence. Breach of confidences can have deleterious consequences; particularly for the doctor-patient relationship, but failure to disclose in some situations could have serious implications for the well-being of the wider society. Doctors should be aware of the basic principles of confidentiality and the ethical and legal framework around which they are built.

  6. An efficient steganography method for hiding patient confidential information.

    Science.gov (United States)

    Al-Dmour, Hayat; Al-Ani, Ahmed; Nguyen, Hung

    2014-01-01

    This paper deals with the important issue of security and confidentiality of patient information when exchanging or storing medical images. Steganography has recently been viewed as an alternative or complement to cryptography, as existing cryptographic systems are not perfect due to their vulnerability to certain types of attack. We propose in this paper a new steganography algorithm for hiding patient confidential information. It utilizes Pixel Value Differencing (PVD) to identify contrast regions in the image and a Hamming code that embeds 3 secret message bits into 4 bits of the cover image. In order to preserve the content of the region of interest (ROI), the embedding is only performed using the Region of Non-Interest (RONI). PMID:25569937

  7. Legal issues of the electronic dental record: security and confidentiality.

    Science.gov (United States)

    Szekely, D G; Milam, S; Khademi, J A

    1996-01-01

    Computer-based, electronic dental record keeping involves complex issues of patient privacy and the dental practitioner's ethical duty of confidentiality. Federal and state law is responding to the new legal issues presented by computer technology. Authenticating the electronic record in terms of ensuring its reliability and accuracy is essential in order to protect its admissibility as evidence in legal actions. Security systems must be carefully planned to limit access and provide for back-up and storage of dental records. Carefully planned security systems protect the patient from disclosure without the patient's consent and also protect the practitioner from the liability that would arise from such disclosure. Human errors account for the majority of data security problems. Personnel security is assured through pre-employment screening, employment contracts, policies, and staff education. Contracts for health information systems should include provisions for indemnification and ensure the confidentiality of the system by the vendor. PMID:8594098

  8. Root canal filling using MTA in association with parendodontic surgery in the retreatment of an external apical root resorption – case report

    Directory of Open Access Journals (Sweden)

    Marcos JACOBOVITZ

    2009-06-01

    Full Text Available Introduction and objective: The treatment of external apical root resorption should be directed to eliminate the endodontic infection. In some cases, the clinical resolution by conventional endodontic treatment cannot be performed, due to instrumentation and root canal filling complexity. In these cases, alternative instrumentation and obturation techniques may be necessary,additionally to apical surgery. Case report: This case report shows an alternative to external apical root resorption retreatment, using obturation with MTA associated to parendodontic surgery. After the removal of obturation material and the root canal cleaning and shaping, calcium hydroxide therapy was performed during 45 days. After that the canal was filled with MTA, and in a posterior session apical curettage and apicoectomy were performed. After 34 months, the periapical healing could be radiographically noticed, with close contact between trabecular bone and MTA. Conclusion: The use of MTA as a root canal filling material associated with parendodontic surgery seemed to be an adequate alternative to external apical root resorptions.

  9. Effects of LED Phototherapy on Bone Defects Grafted with MTA in a Rodent Model: A Description of the Bone Repair by Light Microscopy

    Science.gov (United States)

    Soares, Luiz Guilherme Pinheiro; Santos, Nicole Ribeiro Silva; Correia, Neandder A.; dos Santos, Jean Nunes; Pinheiro, Antônio Luiz Barbosa

    2011-08-01

    We carried out a histological analysis on bone defects grafted (MTA) treated or not with LED, BMPs and GBR. Benefits of the isolated or combined use these techniques on bone repair have been suggested, but there is no report on their association with LED light. 36 rats were divided into 4 groups each subdivided into 3. Defects on G II and I were filled with the blood clot. G II was further irradiated with LED. G III-IV were filled with MTA+Collagen gel; G IV was further irradiated. LED was applied over the defect at 48 h intervals and repeated for 15 days. Specimens were processed, cut and stained with H&E and Sirius red and underwent histological analysis. The results showed that MTA, due to its characteristics seemed not being directly affected by the LED light. But, the use of LED positively affect bone repair similarly to what was observed on different studies by our team using other biomaterials and laser. It is concluded that MTA seems not be directed affected by the LED light due to it characteristics. However, the beneficial results reported with its usage might be improved by the use of LED PT.

  10. Evidence, Interpretation, and Qualification from Multiple Reports of Long-Term Outcomes in the Multimodal Treatment Study of Children with ADHD (MTA): Part I--Executive Summary

    Science.gov (United States)

    Swanson, James; Arnold, L. Eugene; Kraemer, Helena; Hechtman, Lily; Molina, Brooke; Hinshaw, Stephen; Vitiello, Benedetto; Jensen, Peter; Steinhoff, Ken; Lerner, Marc; Greenhill, Laurence; Abikoff, Howard; Wells, Karen; Epstein, Jeffery; Elliott, Glen; Newcorn, Jeffrey; Hoza, Betsy; Wigal, Timothy

    2008-01-01

    Objective: To review the primary and secondary findings from the Multimodal Treatment study of ADHD (MTA) published over the past decade as three sets of articles. Method: In a two-part article--Part I: Executive Summary (without distracting details) and Part II: Supporting Details (with additional background and detail required by the complexity…

  11. Is patient confidentiality compromised with the electronic health record?: a position paper.

    Science.gov (United States)

    Wallace, Ilse M

    2015-02-01

    In order for electronic health records to fulfill their expected benefits, protection of privacy of patient information is key. Lack of trust in confidentiality can lead to reluctance in disclosing all relevant information, which could have grave consequences. This position paper contemplates whether patient confidentiality is compromised by electronic health records. The position that confidentiality is compromised was supported by the four bioethical principles and argued that despite laws and various safeguards to protect patients' confidentiality, numerous data breaches have occurred. The position that confidentiality is not compromised was supported by virtue ethics and a utilitarian viewpoint and argued that safeguards keep information confidential and the public feels relatively safe with the electronic health record. The article concludes with an ethically superior position that confidentiality is compromised with the electronic health record. Although organizational and governmental ways of enhancing the confidentiality of patient information within the electronic health record facilitate confidentiality, the ultimate responsibility of maintaining confidentiality rests with the individual end-users and their ethical code of conduct. The American Nurses Association Code of Ethics for nurses calls for nurses to be watchful with data security in electronic communications. PMID:25532832

  12. Confidential Data Hiding Using Wavlet Based Ecg Stegnography

    Directory of Open Access Journals (Sweden)

    Malashree K S

    2014-05-01

    Full Text Available With the growing number of aging population and a significant portion of that suffering from cardiac diseases, it is conceivable that remote ECG patient monitoring systems are expected to be widely used as Point-of-Care (PoC applications in hospitals around the world. Therefore, huge amount of ECG signal collected by Body Sensor Networks (BSNs from remote patients at homes will be transmitted along with other physiological readings such as blood pressure, temperature, glucose level etc. and diagnosed by those remote patient monitoring systems. It is utterly important that patient confidentiality is protected while data is being transmitted over the public network as well as when they are stored in hospital servers used by remote monitoring systems. In this project, a wavelet based steganography technique has been introduced which combines encryption and scrambling technique to protect patient confidential data. The proposed method allows ECG signal to hide its corresponding patient confidential data and other physiological information thus guaranteeing the integration between ECG and the rest.

  13. Privacy, confidentiality and abortion statistics: a question of public interest?

    Science.gov (United States)

    McHale, Jean V; Jones, June

    2012-01-01

    The precise nature and scope of healthcare confidentiality has long been the subject of debate. While the obligation of confidentiality is integral to professional ethical codes and is also safeguarded under English law through the equitable remedy of breach of confidence, underpinned by the right to privacy enshrined in Article 8 of the Human Rights Act 1998, it has never been regarded as absolute. But when can and should personal information be made available for statistical and research purposes and what if the information in question is highly sensitive information, such as that relating to the termination of pregnancy after 24 weeks? This article explores the case of In the Matter of an Appeal to the Information Tribunal under section 57 of the Freedom of Information Act 2000, concerning the decision of the Department of Health to withhold some statistical data from the publication of its annual abortion statistics. The specific data being withheld concerned the termination for serious fetal handicap under section 1(1)d of the Abortion Act 1967. The paper explores the implications of this case, which relate both to the nature and scope of personal privacy. It suggests that lessons can be drawn from this case about public interest and use of statistical information and also about general policy issues concerning the legal regulation of confidentiality and privacy in the future. PMID:21708829

  14. Data Classification Based on Confidentiality in Virtual Cloud Environment

    Directory of Open Access Journals (Sweden)

    Munwar Ali Zardari

    2014-10-01

    Full Text Available The aim of this study is to provide suitable security to data based on the security needs of data. It is very difficult to decide (in cloud which data need what security and which data do not need security. However it will be easy to decide the security level for data after data classification according to their security level based on the characteristics of the data. In this study, we have proposed a data classification cloud model to solve data confidentiality issue in cloud computing environment. The data are classified into two major classes: sensitive and non-sensitive. The K-Nearest Neighbour (K-NN classifier is used for data classification and the Rivest, Shamir and Adelman (RSA algorithm is used to encrypt sensitive data. After implementing the proposed model, it is found that the confidentiality level of data is increased and this model is proved to be more cost and memory friendly for the users as well as for the cloud services providers. The data storage service is one of the cloud services where data servers are virtualized of all users. In a cloud server, the data are stored in two ways. First encrypt the received data and store on cloud servers. Second store data on the cloud servers without encryption. Both of these data storage methods can face data confidentiality issue, because the data have different values and characteristics that must be identified before sending to cloud severs.

  15. Confidential patent application with an example of preparation

    Directory of Open Access Journals (Sweden)

    Obrad T. Čabarkapa

    2013-12-01

    Full Text Available In order that the invention solving a technical problem receives a patent protection, it is necessary to file a patent application. For the protection of confidential inventions which are important for defense and national security, a confidential patent application[1] must be filed. A confidential patent application is an important and complex document, the parts of which are,  in principle, exposed in an established order. For the preparation of patent applications, it is necessary to engage experts with higher education, primarily in the technical field the invention relates to. The contents of the patent application is a basis for examining whether the application meets the requirements for patentability and whether the right to patent protection is achieved. Besides theoretical discussions on patent application, the paper gives a short version of an example of an application regarding a protected confidential invention. Introduction The basic condition for the exercise of patent protection is filing a patent application, the test procedure and, eventually, depending on the test results - the recognition or rejection of the patent. The paper gives a description of all parts of the patent application on an example of a confidential invention already patented. The content of the confidential patent application The confidential patent application for confidential invention protection consists of the following parts: The application for a patent; description of the invention; the claims (indication of what is new and what is required to be protected by patenting; abstract (short summary of the invention  and a draft of the invention (to which the description and the claims are referred. The application for a patent The application for patent is filed on Form P-1 and a request for the petty patent on Form MP-1. The data entered in the file is, for example: the applicant; the lawyer; the name of the invention in Serbian and English; the inventor

  16. The DMT's agreements

    International Nuclear Information System (INIS)

    This paper summarizes the numerous collaboration agreements signed by the Department of Mechanics and Technology (DMT) from the Direction of Nuclear Reactors (DRN) of the CEA with foreign research organisms and universities. (J.S.)

  17. Trade Agreements PTI

    Data.gov (United States)

    Department of Homeland Security — The objective of the Trade Agreements PTI is to advance CBP’s mission by working with internal and external stakeholders to facilitate legitimate trade and address...

  18. Service level agreements.

    Science.gov (United States)

    Grimwood, A

    1998-02-01

    Service level agreements provide clearer descriptions of the services to be provided and the objectives to be met. In many instances it is the first time that services have been defined allowing their performance to be suitably measured. They should be output based and not too prescriptive on how the services are to be delivered. The emphasis should be on establishing outputs and the arrangements for monitoring achievement. Customer expectations can exceed available resources and arbitration may become necessary if agreement cannot be reached on internal service level agreements. The main requirements of customers for change through service level agreements is usually improved communications on job status that includes notification of any delays and that agreed response times will be met.

  19. International Fisheries Agreements

    DEFF Research Database (Denmark)

    Pintassilgo, Pedro; Kronbak, Lone Grønbæk; Lindroos, Marko

    2015-01-01

    This paper surveys the application of game theory to the economic analysis of international fisheries agreements. The relevance of this study comes not only from the existence of a vast literature on the topic but especially from the specific features of these agreements. The emphasis of the survey...... is on coalition games, an approach that has become prominent in the fisheries economics literature over the last decade. It is shown that coalition games were first applied to international fisheries agreements in the late 1990s addressing cooperative issues under the framework of characteristic function games...... and stability of international fisheries agreements. A key message that emerges from this literature strand is that self-enforcing cooperative management of internationally shared fish stocks is generally difficult to achieve. Hence, the international legal framework and regulations play a decisive role...

  20. AGREEMENTS CONCLUDED ELECTRONICALLY

    OpenAIRE

    Paul Popovici, József-Attila Forró

    2010-01-01

    The internet is not merely a means of communication but also an important instrument in operating commercial relations. The agreements concluded electronically have as legal frame the law nr. 365/2002 on electronic commerce. The present article outlines the main discussions generated by this type of agreements: pre-contractual obligation of information, time of conclusion, the relative nullity of contracts concluded by electronic means, the right to unilateral withdrawal of contract, long-dis...

  1. Comparison of apical sealing and periapical extrusion of the ThermaFil obturation technique with and without MTA as an apical barrier: An in vitro study

    Directory of Open Access Journals (Sweden)

    Satish Kumar

    2011-01-01

    Full Text Available Aim: The aim of the study was to compare the conventional ThermaFil obturation technique and ThermaFil obturation with mineral trioxide aggregate (MTA as an apical barrier, with regard to apical sealing and extrusion. Materials and Methods: Twenty extracted human canines were instrumented using a crown-down technique and divided into two groups. The experimental group was obturated using ThermaFil obturation with MTA as an apical barrier and the control group was obturated using the conventional ThermaFil obturation technique. AH Plus sealer was used in both the groups. Apical extrusion was recorded. Teeth of both the groups were coated with nail polish, except for the apical 3 mm. After 24 h, they were suspended in black India ink for 48 h. Canines were decalcified, rendered transparent, and linear dye penetration was measured under ×40 stereomicroscope. Results: There was a significant extrusion noticed in conventional ThermaFil obturation technique. Frequency of extrusion of sealer and/or gutta-percha was supposed to be evaluated using χ² test, but since the values of the samples of ThermaFil plus MTA group were zero, statistical analysis could not be conducted, whereas linear dye leakage was calculated with Mann-Whitney U test because the distribution was abnormal. Conclusion: Although ThermaFil plus MTA group showed microleakage, extrusion of sealer and the core material was prevented in comparison with conventional ThermaFil obturation technique. It is advantageous to use MTA as an apical plug as there is no fear of apical extrusion and the root canal system can then be packed three dimensionally against this barrier using any thermoplasticized gutta-percha obturation technique.

  2. Apical internal inflammatory root resorption and open apex treated with MTA: a case report = Reabsorção apical inflamatória interna e ápice aberto tratado com MTA: relato de caso

    Directory of Open Access Journals (Sweden)

    Brun, Débora Franzon

    2010-01-01

    Full Text Available Objetivo: A reabsorção radicular interna inflamatória é uma condição rara caracterizada por progressiva perda de substância dentária, que se inicia nas paredes do canal radicular. Geralmente o processo é assintomático e diagnosticado em exame radiográfico de rotina. O presente relato de caso mostra o tratamento de um caso de lesão periapical e reabsorção interna apical que atingiu a superfície radicular externa. Descrição do caso: Um paciente do sexo masculino de 16 anos foi encaminhado para tratamento odontológico de rotina para reabilitação oral. O exame radiográfico mostrou uma lesão de reabsorção no terço apical e lesão periapical no dente 21. O preparo coronário foi realizado e hidróxido de cálcio foi colocado por duas semanas. Um tampão com MTA branco foi condensado na cavidade da reabsorção e então o canal foi obturado com guta-percha e cimento AH Plus. As radiografias de acompanhamento mostraram resolução satisfatória. Conclusão: Este caso mostrou os resultados do tratamento com tampão apical de MTA. A técnica evitou um procedimento invasivo e apresentou algumas vantagens, tais como propriedades biológicas dos materiais e capacidade de selamento

  3. MTA对牙周膜干细胞RANKL/OPG表达水平的影响%Effects of MTA on the expression of RANKL and OPG in human periodontal ligament stem cells

    Institute of Scientific and Technical Information of China (English)

    周益翔; 刘根霞; 马姝; 卢亚蝶; 张光东; 于金华

    2015-01-01

    Objective To evaluate the effects of MTA on the expression of receptor activator of NF-κB ligand (RANKL)and osteo-protegerin (OPG)in human periodontal ligament stem cells (PDLSCs). Methods First,PDLSCs were cultured separately by enzyme digestion. Then,PDLSCs were cultured in α-MEM medium supplemented with different concentrations of MTA conditioned medium and the optimal concentration of MTA conditioned medium was determined by alkaline phosphatase (ALP)activity. PDLSCs cultured in α-MEM (control group),MTA conditioned medium containing 2 mg / mL MTA for 3 days and 7 days were respectively collected to evalu-ate the expression of RANKL and OPG at protein level by Western blot. Results For PDLSCs cultured in MTA conditioned medium for 3 days and 7 days,expression of OPG was all higher than that in control group,while expression of RANKL was all lower than that in control group. Conclusions MTA can regulate the odonto / osteogenic and odonto / osteoclastic potential of PDLSCs through RANKL /OPG system.%目的:探讨MTA 对人牙周膜干细胞(periodontal ligament stem cells,PDLSCs)核因子-κB 受体活化因子配体(recep-tor activator of NF -κB ligand,RANKL)、骨保护素(osteoprotegerin,OPG)表达的影响。方法通过酶消化法分离培养PDLSCs,依据碱性磷酸酶(alkaline phosphatase,ALP)活性筛选最佳MTA 刺激浓度,将PDLSCs 分别于对照组(普通培养基)和2 mg / mL MTA 条件培养液培养3 d 和7 d 后,蛋白免疫印迹法分别检测RANKL、OPG 蛋白表达。结果 MTA 刺激3 d 和7 d 组,OPG 蛋白表达较对照组升高,RANKL 蛋白表达较对照组降低。结论 MTA 可通过调节RANKL / OPG 系统,参与调节PDLSCs 成牙/骨及破牙/骨活性。

  4. Commercial Application of RMC Technology in the 1.5 Mt/a Hydrocracking Unit at Shanghai Petrochemical Company

    Institute of Scientific and Technical Information of China (English)

    Xiong Zhenlin; Wang Yiguan; Zhang Maoying; Lin Baohua; Mao Yichao

    2003-01-01

    The RMC technology developed by RIPP has been applied in a 1.5 Mt/a medium pressure hydrocracking unit at Shanghai Petrochemical Company. The unit was successfully put on stream in September 2002. Calibration of the performance of the commercial unit has shown that the RMC technology has higher hydrogenation activity and selectivity, and high quality product can be obtained under lower reaction temperature. The heavy naphtha with less than 0.5 ppm of sulfur and 58.5 m% potential aromatic content is a good feedstock for catalytic reforming unit. The diesel with less than 0.5 ppm of sulfur, 6.6 m% aromatics and cetane rating of 56 is a high-grade diesel fuel. The hydrocracked tail oil containing more than 14 m% hydrogen and mere 1.7m% aromatics could be used as a good feedstock for steam cracking process to produce ethylene.

  5. CRAC: Confidentiality Risk Analysis and IT-Architecture Comparison of Business Networks

    OpenAIRE

    Morali, Ayse; Zambon, Emmanuele; Etalle, Sandro; Wieringa, Roel

    2009-01-01

    The leakage of confidential information (e.g.\\ industrial secrets, patient records and user credentials) is one of the risks that have to be accounted for and mitigated by organizations dealing with confidential data. Unfortunately, assessing confidentiality risk is challenging, particularly in the presence of cross- organization cooperation, like in the case of outsourcing. This is due to the complexity of business networks. This paper presents an IT-architecture based method for assessing a...

  6. MTA index: a simple 2D-method for assessing atrophy of the medial temporal lobe using clinically available neuroimaging

    Directory of Open Access Journals (Sweden)

    Manuel eMenéndez-González

    2014-03-01

    Full Text Available Background and purpose: Despite a strong correlation between severity of Alzheimer disease (AD pathology and medial temporal lobe atrophy (MTA, its measurement has not been widely used in daily clinical practice as a criterion in the diagnosis of prodromal and probable AD. This is mainly because the methods available to date are sophisticated and difficult to implement for routine use in most hospitals. In this pilot study we aim to describe a novel, simple and objective method for measuring the rate of MTA in relation to the global atrophy using clinically available neuroimaging and describe the rationale behind this method.Description: This method consists of calculating a ratio of 3 regions traced manually on one single coronal MRI slide at the level of the interpeduncular fossa: i the medial temporal lobe region (A; ii the parenchyma within the medial temporal region, that includes the hippocampus and the parahippocampal gyrus -the fimbriae taenia and choroid plexus are excluded- (B; and iii the body of the ipsilateral lateral ventricle (C. Therefore we can compute the ratio Medial Temporal Atrophy index at both sides as follows: MTAi = (A-B x10/C.Conclusions: The MTAi is a simple 2D-method for measuring the relative extent of atrophy in the MTL in relation to the global brain atrophy. This method can be useful for a more accurate diagnosis of AD in routine clinical practice. Further studies are needed to assess the usefulness of MTAi in the diagnosis of early AD, in tracking the progression of AD and in the differential diagnosis of AD with other dementias.

  7. Agreement on African Venture

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    Mining giant Rio Tinto and Chinese aluminum company Chalco say they are committed to an iron ore project in Guinea china’s biggest aluminum producer Aluminum Corp. China Ltd.(Chalco) signed a binding agreement with the world’s second largest mining company,Rio Tinto,on July 29 in Beijing.

  8. The Sicomines Agreement

    DEFF Research Database (Denmark)

    Jansson, Johanna

    of the global political economy have shifted, and that China’s position as a foreign policy actor is now consolidated. Continuity, since the 2009 amendment of the agreement, which came about partly as a result of China’s ambitions to take up an active role in the International Monetary Fund (IMF...

  9. Contract agreements via logic

    Directory of Open Access Journals (Sweden)

    Massimo Bartoletti

    2013-10-01

    Full Text Available We relate two contract models: one based on event structures and game theory, and the other one based on logic. In particular, we show that the notions of agreement and winning strategies in the game-theoretic model are related to that of provability in the logical model.

  10. Features and Agreement

    CERN Document Server

    Bayer, S; Bayer, Sam; Johnson, Mark

    1995-01-01

    This paper compares the consistency-based account of agreement phenomena in `unification-based' grammars with an implication-based account based on a simple feature extension to Lambek Categorial Grammar (LCG). We show that the LCG treatment accounts for constructions that have been recognized as problematic for `unification-based' treatments.

  11. THE INFORMATION CONFIDENTIALITY AND CYBER SECURITY IN MEDICAL INSTITUTIONS

    Directory of Open Access Journals (Sweden)

    SABAU-POPA CLAUDIA DIANA

    2015-07-01

    Full Text Available The information confidentiality and cyber security risk affects the right to confidentiality and privacy of the patient, as regulated in Romania by the Law 46/2002. The manifestation of the cyber security risk event affects the reputation of the healthcare institution and is becoming more and more complex and often due to the: development of network technology, the medical equipment connected to wifi and the electronic databases. The databases containing medical records were implemented due to automation. Thus, transforming data into medical knowledge contribute to a better understanding of the disease. Due to these factors, the measures taken by the hospital management for this type of risk are adapted to the cyber changes. The hospital objectives aim: the implementation of a robust information system, the early threats identifications and the incident reporting. Neglecting this type of risk can generate financial loss, inability to continue providing health care services for a certain period of time, providing an erroneous diagnosis, medical equipment errors etc. Thus, in a digital age the appropriate risk management for the information security and cyber risk represent a necessity. The main concern of hospitals worldwide is to align with international requirements and obtain credentials in terms of data security from the International Organisation for Standardization, which regulates the management of this type of risk. Romania is at the beginning in terms of concerns regarding the management, avoidance and mitigation of information security, the health system being most highly exposed to its manifestation. The present paper examines the concerns of the health system to the confidentiality of information and cyber security risk and its management arrangements. Thus, a set of key risk indicators is implemented and monitored for 2011-2013, using a user interface, a Dashboard, which acts as an early warning system of the manifestation of the

  12. Institutional review boards' use and understanding of certificates of confidentiality.

    Directory of Open Access Journals (Sweden)

    Laura M Beskow

    Full Text Available Certificates of Confidentiality, issued by agencies of the U.S. government, are regarded as an important tool for meeting ethical and legal obligations to safeguard research participants' privacy and confidentiality. By shielding against forced disclosure of identifying data, Certificates are intended to facilitate research on sensitive topics critical to the public's health. Although Certificates are potentially applicable to an extensive array of research, their full legal effect is unclear, and little is known about stakeholders' views of the protections they provide. To begin addressing this challenge, we conducted a national survey of institutional review board (IRB chairs, followed by telephone interviews with selected chairs, to learn more about their familiarity with and opinions about Certificates; their institutions' use of Certificates; policies and practices concerning when Certificates are required or recommended; and the role Certificates play in assessments of research risk. Overall, our results suggest uncertainty about Certificates among IRB chairs. On most objective knowledge questions, most respondents chose the incorrect answer or 'unsure'. Among chairs who reported more familiarity with Certificates, composite opinion scores calculated based on five survey questions were evenly distributed among positive, neutral/middle, and negative views. Further, respondents expressed a variety of ideas about the appropriate use of Certificates, what they are intended to protect, and their effect on research risk. Nevertheless, chairs who participated in our study commonly viewed Certificates as a potentially valuable tool, frequently describing them as an 'extra layer' of protection. These findings lead to several practical observations concerning the need for more stakeholder education about Certificates, consideration of Certificates for a broader range of studies, the importance of remaining vigilant and using all tools available to

  13. Case Reports on the Web Redux: Confidentiality Still in Jeopardy

    OpenAIRE

    Markovitz, Barry P; Goodman, Kenneth W

    2003-01-01

    We reported at AMIA 1999 on the apparent lack of privacy protection for the subjects of case reports at 32 websites. It has been clear for some time that print journal editors and Institutional Review Boards require informed consent from patients or their surrogates if they can be potentially identified in publications.1–3 We found in 1999 that this level of confidentiality protection was not being applied to case reports on the Internet.4 This report is a follow up evaluation of those and 26...

  14. Uses the MTA after absorption of sandwich technique to repair of invasive cervical observation%MTA运用于3例侵袭性根颈吸收的疗效观察

    Institute of Scientific and Technical Information of China (English)

    高卫星; 仲庆军; 郑凌云

    2014-01-01

    Objective To observer the effect of using the minneral trionxide aggregate (MTA)to repair the invasive erical resorption (ICR) in a sandwich technique while keeping pulp vitality. Methods The study selected the October 2006 to March 2010, my outpatient disagnosis of invasive cervcal resorption in patients with three cases, MTA joint glass ionomer cements, composite resin restorative treatment, a mean follow-up of 2 years. Results The MTA sandwich technique to repaire the invasive cervical resorption can suspend the process of progressive cervical resortion, wich is a successful effective treatment. Conclusion MTA combined with glass ionoment, composite resin restoration of invasive cervical resorption canobtain good clinical effect.%目的:观察采用 MTA 经三明治技术修复侵袭性根颈吸收同时保持患牙牙髓活力的疗效。方法选用2006年10月~2010年3月我科门诊诊断为侵袭性根颈吸收患者3例,采用 MTA 联合玻璃离子水门汀,复合树脂进行修复治疗,平均随访2年。结果采用 MTA 经三明治技术修复侵袭性根颈吸收可中止进行性根颈吸收的进度,治疗有效。结论以 MTA 联合玻璃离子水门汀,复合树脂修复侵袭性根颈吸收可获得良好的临床疗效。

  15. 29 CFR 4901.24 - Special rules for trade secrets and confidential commercial or financial information submitted to...

    Science.gov (United States)

    2010-07-01

    ... confidential business information and designate, with appropriate markings, the portion(s) of the submission to... secret or is commercial or financial information that is privileged or confidential. Facts...

  16. 7 CFR 981.75 - Confidential nature of records and reports.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Confidential nature of records and reports. 981.75 Section 981.75 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING... GROWN IN CALIFORNIA Order Regulating Handling Records and Reports § 981.75 Confidential nature...

  17. 29 CFR 1208.5 - Material relating to mediation function-confidential.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 4 2010-07-01 2010-07-01 false Material relating to mediation function-confidential. 1208.5 Section 1208.5 Labor Regulations Relating to Labor (Continued) NATIONAL MEDIATION BOARD AVAILABILITY OF INFORMATION § 1208.5 Material relating to mediation function—confidential. (a) All...

  18. 45 CFR 303.21 - Safeguarding and disclosure of confidential information.

    Science.gov (United States)

    2010-10-01

    ... of confidential information. (a) Definitions—(1) Confidential information means any information... computerized support enforcement systems, the IV-D agency shall establish appropriate safeguards to comply with... subject to any State and Federal statutes that impose legal sanctions for such disclosure. Effective...

  19. 76 FR 69722 - Access to Confidential Business Information by Protection Strategies Incorporated

    Science.gov (United States)

    2011-11-09

    ... AGENCY Access to Confidential Business Information by Protection Strategies Incorporated AGENCY... access to the Toxic Substances Control Act (TSCA) confidential business information and to provide notice... contractor, PSI of Arlington, VA, to access information which has been submitted to EPA under all sections...

  20. Attitude of Lithuanian residents to confidentiality of adolescent sexual and reproductive health care

    DEFF Research Database (Denmark)

    Jaruseviciene, Lina; Lazarus, Jeff; Zaborskis, Apolinaras

    2011-01-01

    To assess the attitudes of Lithuanian residents towards the protection of confidentiality in the sexual and reproductive health care of adolescents.......To assess the attitudes of Lithuanian residents towards the protection of confidentiality in the sexual and reproductive health care of adolescents....

  1. 30 CFR 291.111 - How does MMS treat the confidential information I provide?

    Science.gov (United States)

    2010-07-01

    ... regulations at 43 CFR part 2 to give submitters an opportunity to object to disclosure. (c) MMS retains the... 30 Mineral Resources 2 2010-07-01 2010-07-01 false How does MMS treat the confidential information... SHELF LANDS ACT § 291.111 How does MMS treat the confidential information I provide? (a) Any person...

  2. 19 CFR 206.7 - Confidential business information; furnishing of nonconfidential summaries thereof.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 3 2010-04-01 2010-04-01 false Confidential business information; furnishing of... NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS RELATING TO GLOBAL AND BILATERAL SAFEGUARD ACTIONS, MARKET DISRUPTION, TRADE DIVERSION, AND REVIEW OF RELIEF ACTIONS General § 206.7 Confidential business...

  3. 21 CFR 71.15 - Confidentiality of data and information in color additive petitions.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 1 2010-04-01 2010-04-01 false Confidentiality of data and information in color additive petitions. 71.15 Section 71.15 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL COLOR ADDITIVE PETITIONS General Provisions § 71.15 Confidentiality of data and information in color...

  4. 42 CFR 2.1 - Statutory authority for confidentiality of drug abuse patient records.

    Science.gov (United States)

    2010-10-01

    ... HUMAN SERVICES GENERAL PROVISIONS CONFIDENTIALITY OF ALCOHOL AND DRUG ABUSE PATIENT RECORDS Introduction § 2.1 Statutory authority for confidentiality of drug abuse patient records. The restrictions of these regulations upon the disclosure and use of drug abuse patient records were initially authorized by section...

  5. 42 CFR 2.2 - Statutory authority for confidentiality of alcohol abuse patient records.

    Science.gov (United States)

    2010-10-01

    ... HUMAN SERVICES GENERAL PROVISIONS CONFIDENTIALITY OF ALCOHOL AND DRUG ABUSE PATIENT RECORDS Introduction § 2.2 Statutory authority for confidentiality of alcohol abuse patient records. The restrictions of these regulations upon the disclosure and use of alcohol abuse patient records were initially...

  6. 42 CFR 405.215 - Confidential commercial and trade secret information.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 2 2010-10-01 2010-10-01 false Confidential commercial and trade secret... HEALTH AND HUMAN SERVICES MEDICARE PROGRAM FEDERAL HEALTH INSURANCE FOR THE AGED AND DISABLED Medical... trade secret information. To the extent that CMS relies on confidential commercial or trade...

  7. 34 CFR 21.32 - Confidentiality of information about net worth.

    Science.gov (United States)

    2010-07-01

    ... established procedures under the Freedom of Information Act (34 CFR part 5). (Authority: 5 U.S.C. 504(c)(1)) ... 34 Education 1 2010-07-01 2010-07-01 false Confidentiality of information about net worth. 21.32... One Apply for an Award? § 21.32 Confidentiality of information about net worth. (a) In a proceeding...

  8. 47 CFR 51.335 - Notice of network changes: Confidential or proprietary information.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 3 2010-10-01 2010-10-01 false Notice of network changes: Confidential or proprietary information. 51.335 Section 51.335 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED... Carriers § 51.335 Notice of network changes: Confidential or proprietary information. (a) If an...

  9. 19 CFR 210.39 - In camera treatment of confidential information.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 3 2010-04-01 2010-04-01 false In camera treatment of confidential information....39 In camera treatment of confidential information. (a) Definition. Except as hereinafter provided... protective orders or orders granting in camera treatment are not made part of the public record and are...

  10. 15 CFR Supplement No. 1 to Part 718 - Confidential Business Information Declared or Reported *

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Confidential Business Information Declared or Reported * No. Supplement No. 1 to Part 718 Commerce and Foreign Trade Regulations Relating to... WEAPONS CONVENTION REGULATIONS CONFIDENTIAL BUSINESS INFORMATION Pt. 718, Supp. 1 Supplement No. 1 to...

  11. Confidential Communication Through Chaos Encryption in Wireless Sensor Network

    Institute of Scientific and Technical Information of China (English)

    CHEN Shuai; ZHONG Xian-xin

    2007-01-01

    A new byte block cipher algorithm with discrete chaos and Feistel structure has been studied for confidential communication in wireless sensor network to improve security. After permutation, the byte block was encrypted through a Feistel structure in multiple turns and afterwards replaced again. The child keys are the composite sequence of discrete chaos and linear congruence sequences. Both the plain text and cipher text are of 8 bits. The number of keys is alterable. A nonlinear encryption function in the Feistel structure with chaos was constructed. The cipher algorithm was realized in the Micaz node,and the confidential communication experiment in wireless sensor network was completed successfully. Additional ROM memory required for the cipher algorithm is 4144 bytes and an additional RAM memory 61 bytes. The cipher algorithm is nonlinear chaos and the Feistel structure holds the best of the RC6, DES and SKIPJACK cipher algorithms.The result shows that the algorithm needs a little memory and is safe at a high level.

  12. HIPAA-protecting patient confidentiality or covering something else?

    Directory of Open Access Journals (Sweden)

    Robbins RA

    2013-10-01

    Full Text Available No abstract available. Article truncated at 150 words. A case of a physician fired from the Veterans Administration (VA for violation of the Health Care Portability and Accountability Act of 1996 (HIPAA illustrates a problem with both the law and the VA. Anil Parikh, a VA physician at the Jesse Brown VA in Chicago, was dismissed on a charge of making unauthorized disclosures of confidential patient information on October 19, 2007. On January 3, 2011 the Merit Systems Protection Board (MSPB reversed Dr. Parikh’s removal. Dr. Parikh's initially made disclosures to the VA Office of Inspector General and to Senator Barack Obama and Congressman Luis Gutierrez, in whose district the Jesse Brown VA lies. Dr. Parikh alleged that there were systematic problems within the Jesse Brown VA that resulted in untimely and inadequate patient care. The confidential patient information Parikh disclosed included examples of the misdiagnoses and misdirection of patients within the hospital. Specifically, Dr. Parikh alleged that …

  13. Fluoride-containing nanoporous calcium-silicate MTA cements for endodontics and oral surgery: Early fluorapatite formation in a phosphate-containing solution

    OpenAIRE

    Gandolfi, M.G.; Taddei, P.; Siboni, F.; Modena, E.; Ginebra Molins, Maria Pau; Prati, Claudio

    2011-01-01

    Gandolfi MG, Taddei P, Siboni F, Modena E, Ginebra MP, Prati C. Fluoride-containing nanoporous calcium-silicate MTA cements for endodontics and oral surgery: early fluorapatite formation in a phosphate-containing solution. International Endodontic Journal, 44, 938–949, 2011. Aim To test the chemical–physical properties and apatite-forming ability of experimental fluoride-doped calcium silicate cements designed to create novel bioactive materials for use in endodontics ...

  14. Genetic secrets: Protecting privacy and confidentiality in the genetic era. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Rothstein, M.A. [ed.

    1998-09-01

    Few developments are likely to affect human beings more profoundly in the long run than the discoveries resulting from advances in modern genetics. Although the developments in genetic technology promise to provide many additional benefits, their application to genetic screening poses ethical, social, and legal questions, many of which are rooted in issues of privacy and confidentiality. The ethical, practical, and legal ramifications of these and related questions are explored in depth. The broad range of topics includes: the privacy and confidentiality of genetic information; the challenges to privacy and confidentiality that may be projected to result from the emerging genetic technologies; the role of informed consent in protecting the confidentiality of genetic information in the clinical setting; the potential uses of genetic information by third parties; the implications of changes in the health care delivery system for privacy and confidentiality; relevant national and international developments in public policies, professional standards, and laws; recommendations; and the identification of research needs.

  15. Effect of technique of sealer agitation on percentage and depth of MTA Fillapex sealer penetration: A comparative in-vitro study

    Directory of Open Access Journals (Sweden)

    Vineeta Nikhil

    2015-01-01

    Full Text Available Aim: To compare the effect of three root canal sealer activation techniques on percentage and depth of sealer penetration of MTA Fillapex and AH Plus sealers. Materials and Methods: Sixty teeth prepared till F5 ProTaper size were divided into three equal groups on the basis of sealer activation technique (G1: Ultrasonics, G2: Lentulo spiral, and G3: Counter-clockwise rotary motion. Each group was further divided into two equal subgroups on the basis of type of sealer used: AH Plus (Denstply, Konstanz, Germany or MTA Fillapex (Angelus, Londrina, PR, Brazil and obturated with gutta-percha. Horizontal sections at 3 and 6 mm from the apex were obtained and the percentage and depth of penetration of sealers into dentinal tubules were measured using confocal laser scanning microscopy (CLSM. Statistical analysis was performed utilizing Kruskal-Wallis and Mann-Whitney U tests with a significance level of 5%. Results: G1 showed significantly (P 0.05 between G2 and G3. Conclusion: Percentage and depth of sealer penetration are influenced by the type of sealer used sealer activation technique and by the root canal level. Ultrasonic method of sealer activation and MTA Fillapex showed the best results.

  16. 75 FR 24688 - Access to Confidential Business Information by Guident Technologies Inc.’s Identified Subcontractor

    Science.gov (United States)

    2010-05-05

    ... AGENCY Access to Confidential Business Information by Guident Technologies Inc.'s Identified... information may be claimed or determined to be Confidential Business Information (CBI). DATES: Access to the..., maintenance, and operations for the Confidential Business Information Systems and for Test...

  17. ShRNA-mediated gene silencing of MTA1 influenced on protein expression of ER alpha, MMP-9, CyclinD1 and invasiveness, proliferation in breast cancer cell lines MDA-MB-231 and MCF-7 in vitro

    Directory of Open Access Journals (Sweden)

    Zhang Ping

    2011-05-01

    Full Text Available Abstract Background MTA1(metastasis associated-1 is a tumor metastasis associated candidate gene and overexpression in many human tumors, including breast cancer. In this study, we investigated depressive effect on MTA1 by MTA1-specific short hairpin RNA(shRNA expression plasmids in human breast cancer cell lines MDA-MB-231 and MCF-7, and effect on protein levels of ER alpha, MMP-9, cyclinD1, and tumor cell invasion, proliferation. Methods ShRNA expression vectors targeting MTA1 was constructed and transfected into human breast cancer cell lines MDA-MB-231 and MCF-7. The transfection efficiency was evaluated by fluorescence microscopy, mRNA levels of MTA1 were detected by reverse transcription-polymerase chain reaction (RT-PCR, protein levels of ER alpha, MMP-9 and cyclinD1 were detected by Western blotting, respectively. Tumor cells invasive ability were evaluated by Boyden chamber assay, the cells proliferation were evaluated using cell growth curve and MTT analysis, the cell cycle analysis was performed using flow cytometry. Results Down-regulation of MTA1 by RNAi approach led to re-expression of ER alpha in ER-negative breast cancer cell lines MDA-MB-231, and reduced protein levels of MMP-9 and CyclinD1, as well as decreased tumor cell invasion and proliferation, more cells were blocked in G0/G1 stage(P 0.05. Conclusions ShRNA targeted against MTA1 could specifically mediate the MTA1 gene silencing and consequentially recover the protein expression of ER alpha, resulting in increase sensitivity of antiestrogens, as well as suppress the protein levels of MMP-9 and cyclinD1 in ER-negative human breast cancer cell lines MDA-MB-231. Silencing effect of MTA1 could efficiently inhibit the invasion and proliferation in MDA-MB-231 cells. The shRNA interference targeted against MTA1 may have potential therapeutic utility in human breast cancer.

  18. Perceptions of healthcare professionals for colleague confidentiality. A descriptive study.

    Directory of Open Access Journals (Sweden)

    Karkasina Α.

    2013-01-01

    Full Text Available Introduction: Cooperation among nurses is related to Colleague’s Confidentiality Protection, according to Nursing Deontology and their Code of Ethics.The purpose of this study was the evaluation of nursing personnel attitudes, perceptions and behavior towards Colleague’s Confidentiality. Methodology: This study was conducted on the basis of the Master Studies in “Management of health services and crisis management” of University of Peloponnese from July till November of 2011. The sample of the study included nursing personnel of General Hospital of Sparta, of Molai and of Panarkadian Hospital of Tripolis. Based on the study of literature a questionnaire was constructed. Data consistency was tested by Cronbach α (α= 0,81. Specifically, the questionnaire reflected the attitudes and perceptions related to the behavior of the nursing staff regarding the cooperation among them and their collaboration with patients. It also included questions investigating actions made by the participants in case a colleague put in danger patient’s life or risked an infection. Finally, there were questions regarding the participants’ satisfaction from actions taken in case they made a report for a nursing error to the ward they were working. 200 questionnaires were distributed and 177 were finally answered (88.5% respone rate. For the statistical analysis the statistical program SPSS V.16 was used. Results: 9.7% of the participants were men and the rest 90,3% were women. Mean age of the sample was 36,8 years with the lowest to be 20 years old and the highest 58 years old. The majority of the participants (40% said that they had reported an error but they didn’t do it officially. The main reason for non-reporting it was because of the Colleague’s Confidentiality’s Protection. A rate of 48% of the nurses knew Nurses’ Code of Ethics and the law existence supporting it. A rate of 32.5% of the participants considered that by reporting an error, the

  19. Effects of LED phototherapy on bone defects grafted with MTA, bone morphogenetic proteins, and guided bone regeneration in a rodent model: a description of the bone repair by light microscopy

    Science.gov (United States)

    Pinheiro, Antonio Luiz B.; Aciole, Gilberth T. S.; Soares, Luiz G. P.; Correia, Neandder A.; N. dos Santos, Jean

    2011-03-01

    We carried out a histological analysis on surgical bone defects grafted or not with MTA, treated or not with LED, BMPs and GBR. We have used several models to assess the effects of laser on bone. Benefits of the isolated or combined use them on bone healing has been suggested. There is no previous report on their association with LED light. 90 rats were divided into 10 groups. On Groups II and I the defect were filled with the clot. On Group II, were further irradiated. On groups III-VI, defect was filled with MTA + Collagen gel (III); animals of group IV were further irradiated. On groups V and VI, the defects filled with the MTA were covered with a membrane. Animals of Group VI were further irradiated. On Groups VII and VIII a pool of BMPs was added to the MTA and was further irradiated. On groups IX and X, the MTA + BMP graft was covered with a membrane. On group X, the defect was further irradiated. LED (λ850 +/- 10nm, 150mW, A= 0.5cm2, 54s, 0.3W/cm2, 16 J/cm2) was applied at 48 h intervals during 15 days. Specimens were taken, processed, cut and stained with H&E and Sirius red and underwent histological analysis. The results showed that MTA seemed not being affected by LED light. However, its use positively affected healing around the graft. It is concluded that MTA is not affected by the LED light due to it characteristics, but beneficial results with LED usage was found.

  20. Attacker Control and Impact for Confidentiality and Integrity

    CERN Document Server

    Askarov, Aslan

    2011-01-01

    Language-based information flow methods offer a principled way to enforce strong security properties, but enforcing noninterference is too inflexible for realistic applications. Security-typed languages have therefore introduced declassification mechanisms for relaxing confidentiality policies, and endorsement mechanisms for relaxing integrity policies. However, a continuing challenge has been to define what security is guaranteed when such mechanisms are used. This paper presents a new semantic framework for expressing security policies for declassification and endorsement in a language-based setting. The key insight is that security can be characterized in terms of the influence that declassification and endorsement allow to the attacker. The new framework introduces two notions of security to describe the influence of the attacker. Attacker control defines what the attacker is able to learn from observable effects of this code; attacker impact captures the attacker's influence on trusted locations. This ap...

  1. Talking about suicide: confidentiality and anonymity in qualitative research.

    Science.gov (United States)

    Gibson, Susanne; Benson, Outi; Brand, Sarah L

    2013-02-01

    While it is acknowledged that there is a need for more qualitative research on suicide, it is also clear that the ethics of undertaking such research need to be addressed. This article uses the case study of the authors' experience of gaining ethics approval for a research project that asks people what it is like to feel suicidal to (a) analyse the limits of confidentiality and anonymity and (b) consider the ways in which the process of ethics review can shape and constrain suicide research. This leads to a discussion of the ways in which ethics committees assess and monitor qualitative research more generally and some preliminary suggestions for how this might be improved.

  2. Maglev suspension in soundproofing cabins for confidential talks

    Directory of Open Access Journals (Sweden)

    I.I. Bogolepov

    2010-06-01

    Full Text Available This article discusses the idea of providing sound insulation of the room by using a magnetic suspension. It is based on the invention of the Abrakitov V. E.: sound bridge problem is solved by the avoidance of mechanical contact between the panel and the main structure by a magnetic suspension of sound-insulating vacuum panel. The problem is considered on the example of the cabin for private talks.The implementation of sound insulation from airborne sound is technically uncomplicated task, but there are some problems with the structural component of the sound - the sound energy transfer from box floor to office floor and further through the building structures, sometimes at great distance. Modern methods of eavesdropping can use successfully this way. This paper suggests using a magnetic suspension in soundproof rectangular cabins for confidential talks, which excludes leakage of speech information by more effective isolation of the structural sound. If it is necessary to stop the voice information leakage fundamentally by both air sound and structural sound ways, the authors propose to make a cabin from two steel spherical shells, exhausting all air between the walls and supporting the inner shell by the magnetic suspension in suspended condition. In addition, a spherical cabin is the only effective way of isolation from infrasound.The proposed soundproof rectangular and spherical cabins for confidential talks should be designed, manufactured and tested by experts in the field of acoustic, magnetic suspension, autonomous air regeneration and providing a vacuum. Only in this case the necessary acoustic, technological and operational characteristics of a new hi-tech product will be provided.

  3. [Health professionals may have a dilemma about confidentiality healthcare of adolescents].

    Science.gov (United States)

    Boisen, Kirsten; Adolphsen, Caroline; Svensson, Jannet; Jensen, Rikke; Teilmann, Grete

    2016-09-01

    Confidentiality is paramount in healthcare, yet according to Danish guidelines, health professionals have to inform parents about their child´s situation until the age of 18 years. This is in contrast to Danish legislation regarding informed consent, where adolescents aged 15 years can consent to treatment. Young people value confidentiality, although they are unaware of the current guidelines. International guidelines on youth-friendly health services recommend split visits and confidential care while at the same time acknowledging parents' caretaking role, especially in adolescents with chronic illness. PMID:27593236

  4. Seismic contracts and agreements

    International Nuclear Information System (INIS)

    Some points to consider regarding management of seismic projects within the Canadian petroleum industry were reviewed. Seismic projects involve the integration of many services. This paper focused on user-provider relationships, the project planning process, competitive bid considerations, the types of agreement used for seismic and their implications, and the impact that certain points of control may have on a company: (1) initial estimate versus actual cost, (2) liability, (3) safety and operational performance, and (4) quality of deliverables. The objective is to drive home the point that in today's environment where companies are forming, merging, or collapsing on a weekly basis , chain of command and accountability are issues that can no longer be dealt with casually. Companies must form business relationships with service providers with a full knowledge of benefits and liabilities of the style of relationship they choose. Diligent and proactive management tends to optimize cost, safety and liability issues, all of which have a bearing on the points of control available to the company

  5. VHA Data Sharing Agreement Repository

    Data.gov (United States)

    Department of Veterans Affairs — The VHA Data Sharing Agreement Repository serves as a centralized location to collect and report on agreements that share VHA data with entities outside of VA. It...

  6. 76 FR 37111 - Access to Confidential Business Information by Computer Sciences Corporation and Its Identified...

    Science.gov (United States)

    2011-06-24

    ... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Access to Confidential Business Information by Computer Sciences Corporation and Its Identified... contractor, Computer Sciences Corporation of Chantilly, VA and Its Identified Subcontractors, to...

  7. 49 CFR 40.351 - What confidentiality requirements apply to service agents?

    Science.gov (United States)

    2010-10-01

    ... TRANSPORTATION WORKPLACE DRUG AND ALCOHOL TESTING PROGRAMS Roles and Responsibilities of Service Agents § 40.351... the same confidentiality regulations as the employer with respect to the use and release of...

  8. 77 FR 76028 - Access to Confidential Business Information by Science Applications International Corporation and...

    Science.gov (United States)

    2012-12-26

    ... AGENCY Access to Confidential Business Information by Science Applications International Corporation and... (EPA). ACTION: Notice. SUMMARY: EPA has authorized its contractor, Science Applications International... access information which has been submitted to EPA under all sections of the Toxic Substances Control...

  9. 75 FR 78238 - Access to Confidential Business Information by Science Applications International Corporation and...

    Science.gov (United States)

    2010-12-15

    ... AGENCY Access to Confidential Business Information by Science Applications International Corporation and...: EPA has authorized its contractor, Science Applications International Corporation (SAIC) of San Diego, CA, and Its Identified Subcontractors, to access information which has been submitted to EPA...

  10. 76 FR 10360 - Access to Confidential Business Information by Guident Technologies Inc. and Its Identified...

    Science.gov (United States)

    2011-02-24

    ... AGENCY Access to Confidential Business Information by Guident Technologies Inc. and Its Identified Subcontractors AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: EPA has authorized its contractor, Guident Technologies, Inc. of Herndon, VA and Its Identified Subcontractors, to...

  11. 77 FR 10434 - Mandatory Reporting of Greenhouse Gases Rule: Confidentiality Determinations and Best Available...

    Science.gov (United States)

    2012-02-22

    ... Reporting of Greenhouse Gases: Additional Sources of ] Fluorinated GHGs'' rule (75 FR 74774, hereinafter... AGENCY 40 CFR Part 98 RIN 2060-AQ70 Mandatory Reporting of Greenhouse Gases Rule: Confidentiality... technical information, contact the Greenhouse Gas Reporting Rule Hotline at:...

  12. 19 CFR 206.66 - Limited disclosure of certain confidential business information under administrative protective...

    Science.gov (United States)

    2010-04-01

    ... business information under administrative protective order. 206.66 Section 206.66 Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS RELATING TO GLOBAL... certain confidential business information under administrative protective order. In an investigation...

  13. Knowledge, attitudes, and awareness of Croatian dentists concerning patients' confidentiality and privacy.

    Science.gov (United States)

    Budimir, Vice; Cerjan-Letica, Gordana; Budimir, Jozo; Macan, Darko

    2013-03-01

    Confidentiality and privacy have always been a vital part of the health care provider-patient relationship. The aim of this study was to identify and analyze the knowledge, attitudes, and awareness of dentists in Croatia concerning patients' confidentiality and privacy and to determine the degree to which they were protecting patients' confidentiality and privacy in everyday practice. Survey data were collected from seventy of the approximately 4,000 dentists in Croatia who had been randomly selected using the registry of the Croatian Chamber of Dental Medicine. Our strategy for data collection included visits to the dental offices and clinics. The data showed that dentists displayed a lack of awareness and had a poor attitude toward respecting patients' rights to confidentiality and privacy. This study indicated the need to educate dentists about their responsibilities and legal obligations. PMID:23486904

  14. Confidentiality and parental involvement in adolescent sexual and reproductive health care

    DEFF Research Database (Denmark)

    Jaruseviciene, Lina; Lazarus, Jeff; Zaborskis, Apolinaras

    2011-01-01

    was sent to a random sample of 607 Lithuanian GPs. The purpose of this questionnaire was to gain knowledge about current practices of GPs in informing parents on the importance of confidentiality as well as in protecting the privacy of minors. GPs' knowledge of the current legal age limit...... of confidentiality protection in patient-provider settings was also assessed. RESULTS: Although 67.5% of the responding GPs (response rate 73.5%) stated that they inform the parents or guardians of adolescent patients about the importance of confidentiality, 82.9% of them only did so if the opportunity arose. When...... consulting on general sexual issues, more than 70% stated that they would guarantee their minor patients confidentiality. However, when cases involved sexually transmitted infections or pregnancy, nearly the same percentage said they would inform the parents. 62.3% of GPs incorrectly believed that the law...

  15. 75 FR 56096 - Access to Confidential Business Information by Industrial Economics Incorporated

    Science.gov (United States)

    2010-09-15

    ... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Access to Confidential Business Information by Industrial Economics Incorporated AGENCY... Economics Incorporated (IEI) of Cambridge, MA, to access information which has been submitted to EPA...

  16. Predicting word sense annotation agreement

    DEFF Research Database (Denmark)

    Martinez Alonso, Hector; Johannsen, Anders Trærup; Lopez de Lacalle, Oier;

    2015-01-01

    High agreement is a common objective when annotating data for word senses. However, a number of factors make perfect agreement impossible, e.g. the limitations of the sense inventories, the difficulty of the examples or the interpretation preferences of the annotations. Estimating potential...... agreement is thus a relevant task to supplement the evaluation of sense annotations. In this article we propose two methods to predict agreement on word-annotation instances. We experiment with a continuous representation and a three-way discretization of observed agreement. In spite of the difficulty...

  17. Discrete Memoryless Interference and Broadcast Channels with Confidential Messages: Secrecy Rate Regions

    OpenAIRE

    Liu, Ruoheng; Maric, Ivana; Spasojevic, Predrag; Yates, Roy D.

    2007-01-01

    We study information-theoretic security for discrete memoryless interference and broadcast channels with independent confidential messages sent to two receivers. Confidential messages are transmitted to their respective receivers with information-theoretic secrecy. That is, each receiver is kept in total ignorance with respect to the message intended for the other receiver. The secrecy level is measured by the equivocation rate at the eavesdropping receiver. In this paper, we present inner an...

  18. Contractual Protection of Confidential Business Information: In Norwegian Employment- and Business Contracts

    OpenAIRE

    Coates, Sarah Lea

    2013-01-01

    Confidential information can be one of the most valuable assets in a business. By avoiding the disclosure of such information, companies are able to maintain their competitive advantage. The main purpose of this thesis is to establish how and to what extent companies can protect confidential business information by contractual regulations according to Norwegian law. This thesis was written with a scholarship from the research project "Nordic Restatement of Contract Law".

  19. Controls Mitigating the Risk of Confidential Information Disclosure by Facebook: Essential Concern in Auditing Information Security

    OpenAIRE

    Ivan Ognyanov Kuyumdzhiev

    2014-01-01

    Facebook allows people to easily share information about themselves which in some cases could be classified as confidential or sensitive in the organisation they’re working for. In this paper we discuss the type of data stored by Facebook and the scope of the terms “confidential” and “sensitive data”. The intersection of these areas shows that there is high possibility for confidential data disclosure in organisations with none or ineffective security policy. This paper proposes a strategy fo...

  20. An In vitro Comparison of Furcal Perforation Repaired with Pro-root MTA and New Endodontic Cement in Primary Molar Teeth- A Microleakage Stud

    Directory of Open Access Journals (Sweden)

    Haghgoo R.

    2014-03-01

    Full Text Available Statement of Problem: One of the most challenging procedural accidents during pulpotomy of primary molars is furcal perforation. To prevent bacterial invasion, the perforation site should be sealed as soon as possible. Purpose: The aim of the current study is to investigate the ability of the pro- root MTA and new endodontic cement (NEC in repairing the furcation perforations of primary molar teeth. Materials and Method: In this in vitro study, 42 extracted primary molars were select-ed. Their roots were sectioned horizontally and standard access cavity was prepared. The orifices and the root apices were sealed with two layers of resin composite .The samples were randomly assigned into 2 groups. Six teeth were considered as the positive and the negative controls. In the experimental groups; perforation was made. In group 1 and 2, perforation site received pro- root MTA and NEC respectively. The teeth were covered by two layers of nail polish except for the external surface of the perforation site. The negative control group received no repairing material. All teeth were mounted and sterilized for 24 hours. Lower chambers were filled with sterilized Muller Hinton broth. Bacterial suspension of E-faecalis in 0.5 McFarland was prepared. Then repaired site was exposed to the bacterial suspension of E-faecalis every 3 days. All samples were inserted in an incubator at 37oC and 100% humidity. The turbidity of the samples was detected for a period of 30 days. Data were analyzed by Chi- square test. Results: 44% of samples in Pro- root group, 50% of the samples in the NEC group showed contaminations during 30 days. There was no significant difference between these two groups (p= 0.799. Conclusion: With limitations of this study, Pro- root MTA and NEC showed similar capability in sealing the furcal perforations of the primary molars.

  1. Attitudes toward medical and genetic confidentiality in the Saudi research biobank: An exploratory survey.

    Science.gov (United States)

    Alahmad, Ghiath; Hifnawy, Tamer; Abbasi, Badaruddin; Dierickx, Kris

    2016-03-01

    Achieving a balance between giving access to information and respecting donors' confidentiality is a crucial issue for any biobank, with its large number of samples and associated information. Despite the existence of much empirical literature on confidentiality, there are too few surveys in the Middle East about the topic, particularly in the Saudi context. A survey was conducted of 200 respondents at King Abdulaziz Medical City in Riyadh, Saudi Arabia, among 5 groups of equal size, comprised of researchers, physicians, medical students, donors and laypersons, respectively. The majority of participants agreed that confidentiality is an important issue and that it is well protected in the Saudi biobank. All 5 groups showed different attitudes toward disclosing information to various third parties. They were in favor of allowing treating physicians, and to a certain extent family members, to have access to medical and genetic results from research. No significant differences were found between views on medical and genetic confidentiality. The majority of respondents agreed that confidentiality might be breached in cases with specific justified reasons. Even considering differences in religion, culture and other factors, the results of the study were consistent with those reported in the literature and research conducted in other countries. We therefore place emphasis on the importance of protecting and promoting patient/donor confidentiality and privacy.

  2. Application of Hydrocracking Process for Upgrading Tail Oil Quality in 1.0 Mt/a Hydrocracker Unit at SINOPEC Yangzi Petrochemical Company

    Institute of Scientific and Technical Information of China (English)

    Zhang Haichun; Dong Jianwei

    2009-01-01

    This article focuses on the hydrocracking technology for upgrading the quality of tail oil and the first commercial application of the RN-32V/RHC-1 catalysts in the 1.0 Mt/a hydrocracker at the Yangzi Petrochemical Company, which was started up successfully in September 2008. One month after start-up of the hydrocracking unit, an evaluation opera-tion has been conducted for assessing the catalysts performance. The technical calibration results showed that the RN-32V/RHC-1 catalysts had high activity, and the product yield distribution was reasonable. The hydrocracker can provide abundant feedstocks for the downstream aromatic production unit and ethylene production unit.

  3. An Invitro Evaluation of Antimicrobial Efficacy and Flow Characteristics for AH Plus, MTA Fillapex, CRCS and Gutta Flow 2 Root Canal Sealer

    Science.gov (United States)

    Gupta, Prashant; Tikku, Aseem P; Pathak, Anjani Kumar; Chandra, Anil; Yadav, Rakesh Kumar; Bharti, Ramesh; Singh, Rajeev Kumar

    2016-01-01

    Introduction Cleaning and shaping of root canal does not guarantee complete disinfection of the canal, regardless of the systems and techniques used for this purpose. Therefore, it becomes mandatory for the endodontic filling materials to have a good antimicrobial potential especially against E. faecalis. This research was aimed therefore to evaluate the antibacterial efficacy and flow properties of different root canal sealers. Aim To study invitro antimicrobial activity and flow characteristics for Resin based (AH Plus), Mineral Trioxide Aggregate based (MTA Fillapex), Calcium hydroxide based (CRCS) and Flowable Gutta-Percha (Gutta Flow 2) endodontic sealers on Enterococcus faecalis. Materials and Methods Enterococcus faecalis ATCC 29212 was used to test antibacterial potential of sealers by Agar diffusion test (ADT) and Direct Contact Test (DCT). ADT was performed by punching the sealers on a well of 4×6mm diameter on Muller Hinton agar plates. These plates were inoculated with standard suspension of E. faecalis and the zone of inhibition was measured at 24 hours and after 7 days. All the sealers were prepared in accordance with the manufacturer’s recommendations. Flow of sealers was measured according to ADA specification no. 57. Results All sealers showed antibacterial activity against E. faecalis except Gutta Flow 2. At 24 hours, zone of inhibition was highest in Calcibiotic Root Canal Sealer (CRCS) and lowest in AH Plus. After 7 days the zone of inhibition decreased in AH plus, CRCS and MTA Fillapex. DCT showed a significant lower number of organisms in AH Plus, CRCS and MTA than controls at both the time intervals. Gutta Flow 2 did not show any significant antimicrobial action. Maximum and minimum flow was shown by AH Plus and CRCS respectively. Conclusion Highest microbial inhibition was shown by (CRCS), followed by MTA Fillapex and AH Plus. Gutta Flow 2 did not show any inhibition of E. faecalis by ADT. Maximum reduction in antibacterial property with

  4. Isikliku sõiduauto hüvitis ja sisendkäibemaksu mahaarvamine : EML järelepärimine MTA-le / Lasse Lehis

    Index Scriptorium Estoniae

    Lehis, Lasse, 1972-

    2007-01-01

    Probleemist teemal, kas äriühingu töötajatele isikliku auto kasutamisel ette nähtud 1000-kroonise hüvitise rehkendamisel tuleb aluseks võtta kütuse hind koos käibemaksuga või ilma. 2000. aasta Riigikohtu lahendist 3-3-1-50-99. Lisatud: Kindsigo, Aule. Isikliku sõiduauto hüvitisest : MTA vastus EML-ile. Lisatud kommentaar: Lehis, Lasse. Lahendus on maksuvaba piirmäära tõstmine

  5. When security and medicine missions conflict: confidentiality in prison settings.

    Science.gov (United States)

    Allen, Scott A; Aburabi, Raed

    2016-06-13

    Purpose - It is a simple fact that prisons cannot exist - practically, legally, ethically or morally - without the support of physicians and other health professionals. Access to adequate healthcare is one of the fundamental measures of the legitimacy of a jail or prison. At the same time, there is a fundamental tension in the missions of the prison and doctor. The primary mission of the prison is security and often punishment. Reform and rehabilitation have intermittently been stated goals of prisons in the last century, but in practice those humane goals have rarely governed prison administrative culture. The primary mission of the physician is to promote the health and welfare of his or her patient. The paper aims to discuss these issues. Design/methodology/approach - At times, what is required to serve the patient's best interest is at odds with the interests of security. Much of the work of the prison physician does not conflict with the operation of security. Indeed, much of the work of the prison physician is allowed to proceed without much interference from the security regime. But given the fundamental discord in the legitimate missions of security vs medicine, conflict between the doctor and the warden is inevitable. Findings - In this paper, the authors consider the example of patient confidentiality to illustrate this conflict, using case examples inspired by real cases from the experience of the authors. Originality/value - The authors provide an ethical and practical framework for health professionals to employ when confronting these inevitable conflicts in correctional settings.

  6. Confidentiality Protection of Digital Health Records in Cloud Computing.

    Science.gov (United States)

    Chen, Shyh-Wei; Chiang, Dai Lun; Liu, Chia-Hui; Chen, Tzer-Shyong; Lai, Feipei; Wang, Huihui; Wei, Wei

    2016-05-01

    Electronic medical records containing confidential information were uploaded to the cloud. The cloud allows medical crews to access and manage the data and integration of medical records easily. This data system provides relevant information to medical personnel and facilitates and improve electronic medical record management and data transmission. A structure of cloud-based and patient-centered personal health record (PHR) is proposed in this study. This technique helps patients to manage their health information, such as appointment date with doctor, health reports, and a completed understanding of their own health conditions. It will create patients a positive attitudes to maintain the health. The patients make decision on their own for those whom has access to their records over a specific span of time specified by the patients. Storing data in the cloud environment can reduce costs and enhance the share of information, but the potential threat of information security should be taken into consideration. This study is proposing the cloud-based secure transmission mechanism is suitable for multiple users (like nurse aides, patients, and family members).

  7. Confidentiality Protection of Digital Health Records in Cloud Computing.

    Science.gov (United States)

    Chen, Shyh-Wei; Chiang, Dai Lun; Liu, Chia-Hui; Chen, Tzer-Shyong; Lai, Feipei; Wang, Huihui; Wei, Wei

    2016-05-01

    Electronic medical records containing confidential information were uploaded to the cloud. The cloud allows medical crews to access and manage the data and integration of medical records easily. This data system provides relevant information to medical personnel and facilitates and improve electronic medical record management and data transmission. A structure of cloud-based and patient-centered personal health record (PHR) is proposed in this study. This technique helps patients to manage their health information, such as appointment date with doctor, health reports, and a completed understanding of their own health conditions. It will create patients a positive attitudes to maintain the health. The patients make decision on their own for those whom has access to their records over a specific span of time specified by the patients. Storing data in the cloud environment can reduce costs and enhance the share of information, but the potential threat of information security should be taken into consideration. This study is proposing the cloud-based secure transmission mechanism is suitable for multiple users (like nurse aides, patients, and family members). PMID:27059737

  8. Agreements at the Pharmaceutical/University Interface.

    Science.gov (United States)

    Ku, Katherine

    1987-01-01

    Specific agreements that arise at the interface between universities and pharmaceutical companies are described including sponsored research agreements, license agreements, clinical study agreements, material transfer agreements, and patient consent forms with respect to commercialization rights. (Author/MLW)

  9. Labor Agreement Information System (LAIRS)

    Data.gov (United States)

    Office of Personnel Management — The Labor Agreement Information Retrieval System (LAIRS) is a database containing historical information on labor-management relations in the Federal Government. It...

  10. Activation cross sections of $\\alpha$-particle induced nuclear reactions on hafnium and deuteron induced nuclear reaction on tantalum: production of $^{178}$W/$^{178m}$Ta generator

    CERN Document Server

    Tárk'anyi, F; Ditrói, F; Hermanne, A; Ignatyuk, A V; Uddin, M S

    2014-01-01

    In the frame of a systematic study of charged particle production routes of medically relevant radionuclei, the excitation function for indirect production of $^{178m}$Ta through $^{nat}$Hf($\\alpha$,xn)$^{178}$W-$^{178m}$Ta nuclear reaction was measured for the first time up to 40 MeV. In parallel, the side reactions $^{nat}$Hf($\\alpha$,x)$^{179,177,176,175}$W, $^{183,182,178g,177,176,175}$Ta, $^{179m,177m,175}$Hf were also assessed. Stacked foil irradiation technique and $\\gamma$-ray spectrometry were used. New experimental cross section data for the $^{nat}$Ta(d,xn)$^{178}$W reaction are also reported up to 40 MeV. The measured excitation functions are compared with the results of the ALICE-IPPE, and EMPIRE nuclear reaction model codes and with the TALYS 1.4 based data in the TENDL-2013 library. The thick target yields were deduced and compared with yields of other charged particle ((p,4n), (d,5n) and ($^3$He,x)) production routes for $^{178}$W.

  11. MTA-B or not to be? Recycled bifaces and shifting hunting strategies at Le Moustier and their implication for the late Middle Palaeolithic in southwestern France.

    Science.gov (United States)

    Gravina, Brad; Discamps, Emmanuel

    2015-07-01

    Explaining late Middle Palaeolithic industrial variability remains a topic of great interest for researchers focusing on aspects of Neanderthal behavioural complexity and the so-called Middle-to-Upper Paleolithic 'transition.' Several sites in southwestern France figure prominently in these discussions, including the eponymous site of Le Moustier (Dordogne, France), one of the 'key' sequences used in larger anthropological models. Here we present a re-assessment of this important site based on a technological and taphonomic re-evaluation of previously studied collections combined with an analysis of unpublished archaeological material, which includes both lithic and faunal components. Our study produces a very different interpretation of the 'classic' Le Moustier sequence, challenging previous cultural attributions in a way that significantly impacts current debates surrounding the proposed Mousterian of Acheulean Tradition (MTA)--Châtelperronian affiliation. This new interpretation highlights independent changes in lithic technology and subsistence strategies that were previously undetected as well as a novel aspect of Neanderthal raw material use. Finally, we discuss how this new vision has important ramifications for broader issues connected to the definition of late Mousterian techno-complexes, such as the MTA, and the identification of relationships between technology, subsistence, and mobility strategies. PMID:25976251

  12. When security and medicine missions conflict: confidentiality in prison settings.

    Science.gov (United States)

    Allen, Scott A; Aburabi, Raed

    2016-06-13

    Purpose - It is a simple fact that prisons cannot exist - practically, legally, ethically or morally - without the support of physicians and other health professionals. Access to adequate healthcare is one of the fundamental measures of the legitimacy of a jail or prison. At the same time, there is a fundamental tension in the missions of the prison and doctor. The primary mission of the prison is security and often punishment. Reform and rehabilitation have intermittently been stated goals of prisons in the last century, but in practice those humane goals have rarely governed prison administrative culture. The primary mission of the physician is to promote the health and welfare of his or her patient. The paper aims to discuss these issues. Design/methodology/approach - At times, what is required to serve the patient's best interest is at odds with the interests of security. Much of the work of the prison physician does not conflict with the operation of security. Indeed, much of the work of the prison physician is allowed to proceed without much interference from the security regime. But given the fundamental discord in the legitimate missions of security vs medicine, conflict between the doctor and the warden is inevitable. Findings - In this paper, the authors consider the example of patient confidentiality to illustrate this conflict, using case examples inspired by real cases from the experience of the authors. Originality/value - The authors provide an ethical and practical framework for health professionals to employ when confronting these inevitable conflicts in correctional settings. PMID:27219904

  13. Telemedicine and security. Confidentiality, integrity, and availability: a Canadian perspective.

    Science.gov (United States)

    Jennett, P; Watanabe, M; Igras, E; Premkumar, K; Hall, W

    1996-01-01

    The health care system is undergoing major reform, characterized by organized delivery systems (regionalization, decentralization, devolution, etc); shifts in care delivery sites; changing health provider roles; increasing consumer responsibilities; and accountability. Rapid advances in information technology and telecommunications have led to a new type of information infrastructure which can play a major role in this reform. Compatible health information systems are now being integrated and connected across institutional, regional, and sectorial boundaries. In the near future, these information systems will readily be accessed and shared by health providers, researchers, policy makers, health consumers, and the public. SECURITY is a critical characteristic of any health information system. This paper will address three fields associated with SECURITY: confidentiality, integrity, and availability. These will be defined and examined as they relate to specific aspects of Telemedicine, such as electronic integrated records and clinical databases; electronic transfer of documents; as well as data storage and disposal. The guiding principles, standards, and safeguards being considered and put in place to ensure that telemedicine information intrastructures can protect and benefit all stakeholders' rights and needs in both primary and secondary uses of information will be reviewed. Implemented, proposed, and tested institutional, System, and Network solutions will be discussed; for example, encryption-decryption methods; data transfer standards; individual and terminal access and entry I.D. and password levels; smart card access and PIN number control; data loss prevention strategies; interference alerts; information access keys; algorithm safeguards; and active marketing to users of standards and principles. Issues such as policy, implementation, and ownership will be addressed. PMID:10163762

  14. Notes on Agreement in Itelmen

    Directory of Open Access Journals (Sweden)

    Jonathan David Bobaljik

    2002-01-01

    Full Text Available Agreement in Itelmen is represented by means of both prefixes and suffixes. While the prefixes reference subjects (of both transitive and intransitive verbs, the suffixal agreement morphemes on a given verb may reference the subject, the object, or an oblique argument, or some combination of these. We propose that the proper characterization of the factors that determine which arguments control suffixal agreement involves a division of labour between morphology and a notion of discourse prominence/salience. In essence, we propose that the suffixal agreement morpheme is an object agreement marker, but the features of the subject are reflected in this position when the object lacks the relevant features (for example, we treat third person as the lack of a person feature, or is absent altogether (thus, intransitive verbs agree twice with their subjects. When a verb occurs with an oblique as well as a direct object, discourse salience will determine which of these non-subject arguments will control object agreement. In addition to providing a description of a complex range of facts from Itelmen, the paper sheds light on the nature of “multiple exponence” and the role of “competition” among affixes for a particular position in the verbal agreement system.

  15. Adolescent Substance Use in the Multimodal Treatment Study of Attention-Deficit/Hyperactivity Disorder (ADHD) (MTA) as a Function of Childhood ADHD, Random Assignment to Childhood Treatments, and Subsequent Medication

    Science.gov (United States)

    Molina, Brooke S. G.; Hinshaw, Stephen P.; Arnold, L. Eugene; Swanson, James M.; Pelham, William E.; Hechtman, Lily; Hoza, Betsy; Epstein, Jeffery N.; Wigal, Timothy; Abikoff, Howard B.; Greenhill, Laurence L.; Jensen, Peter S.; Wells, Karen C.; Vitiello, Benedetto; Gibbons, Robert D.; Howard, Andrea; Houck, Patricia R.; Hur, Kwan; Lu, Bo; Marcus, Sue

    2013-01-01

    Objective: To determine long-term effects on substance use and substance use disorder (SUD), up to 8 years after childhood enrollment, of the randomly assigned 14-month treatments in the multisite Multimodal Treatment Study of Children with Attention-Deficit/Hyperactivity Disorder (MTA; n = 436); to test whether medication at follow-up, cumulative…

  16. MTA应用于切髓术、根尖诱导成形术疗效观察%Clinical observation of the treatment which MTA applied to the pulpotomy and the apexification

    Institute of Scientific and Technical Information of China (English)

    李冬霞; 吕晶; 汪正文

    2011-01-01

    Objective: To explore the function of MTA and calcium hydroxide in these two types of material in the restoration of endodontium and apex. Methods: 168 patients which had been taken the pulpotomy and the apexification in our hospital from January 2005 to October 2009 were randomly divided into two groups, each 90 teeth. Then, used MTA and calcium hydroxide during the treatment respectively, and take a two-year average follow-up. Results: The treatment efficacy of MTA was more remarkable than the control group. Conclusion: MTA has more obvious clinical advantage than calcium hydroxide.%目的:探讨MTA和氢氧化钙在这两类材料在牙髓、根尖修复中的作用.方法:选取2005年1月~2009年10月在我院进行切髓术、根尖诱导成形术治疗的患者共168例,随机将其分为两组,平均每组有90颗牙,分别采用MTA和氢氧化钙进行治疗,平均随访2年以观察疗效.结果:MTA应用于切髓术、根尖诱导成形术的疗效更为显著.结论:MTA比氢氧化钙有着更为明显的临床优势.

  17. Federal Facility Agreement progress report

    Energy Technology Data Exchange (ETDEWEB)

    1993-10-01

    The (SRS) Federal Facility Agreement (FFA) was made effective by the US. Environmental Protection Agency Region IV (EPA) on August 16, 1993. To meet the reporting requirements in Section XXV of the Agreement, the FFA Progress Report was developed. The FFA Progress Report is the first of a series of quarterly progress reports to be prepared by the SRS. As such this report describes the information and action taken to September 30, 1993 on the SRS units identified for investigation and remediation in the Agreement. This includes; rubble pits, runoff basins, retention basin, seepage basin, burning pits, H-Area Tank 16, and spill areas.

  18. Federal Facility Agreement progress report

    International Nuclear Information System (INIS)

    The (SRS) Federal Facility Agreement (FFA) was made effective by the US. Environmental Protection Agency Region IV (EPA) on August 16, 1993. To meet the reporting requirements in Section XXV of the Agreement, the FFA Progress Report was developed. The FFA Progress Report is the first of a series of quarterly progress reports to be prepared by the SRS. As such this report describes the information and action taken to September 30, 1993 on the SRS units identified for investigation and remediation in the Agreement. This includes; rubble pits, runoff basins, retention basin, seepage basin, burning pits, H-Area Tank 16, and spill areas

  19. Clinical Efficacy Comparison of MTA and Vitapex in Apexification for Young Permanent Teeth%MTA及Vitapex在年轻恒牙根尖诱导成形术中的应用价值对比观察

    Institute of Scientific and Technical Information of China (English)

    强海燕

    2015-01-01

    Objective To study the clinical efficacy comparison of MTA and Vitapex in apexification for young permanent teeth .Methods 150caseswithyoungpermanentendodonticinfectionfromJuly,2014toJuly,2015wereregardedastheresearchobjects.And they were randomly divided into two groups ( MTA group and Vitapex group ) ,according to the different apexification materials.MTA group chose MTA material, and Vitapex group chose Vitapex material.After 3 months and 6 months, the effect was assessed.Results After 3 months, the total effective rate was 96.4%in MTA group;while the total effective rate was 95.0%in the Vitapex group.After 6 months, the total effective rate was 94.0 %in MTA group;while the total effective rate was 95.0%in the Vitapex group.Conclusion MTA and Vitapex are superior in the induction of permanent apical ideal material , and it is worthy of clinical use and promotion.%目的:探讨观察MTA及Vitapex在年轻恒牙根尖诱导成形术中的应用价值对比情况。方法选择2014-07~2015-07间来我院就诊的150例年轻恒牙牙髓感染的患者作为研究对象。根据治疗选择的根尖诱导材料的不同,将所有患者按随机抽样的方法分为MTA组和Vitapex组,Vitapex组的根尖诱导材料为Vitapex,MTA组选择MTA作为根尖诱导材料。3个月及6个月后,根据患者的临床检查评定疗效。结果经过治疗3个月后,MTA组总有效率为96.4%,Vitapex组总有效率为95.2%;治疗6个月后,MTA组总有效率为94.0%,Vitapex组总有效率为95.2%。结论 MTA和Vitapex两种材料在行年轻恒牙根尖诱导成形术中应用效果均较为优越,是恒牙根尖诱导中理想的材料,值得临床推广和应用。

  20. Application-Oriented Confidentiality and Integrity Dynamic Union Security Model Based on MLS Policy

    Science.gov (United States)

    Xue, Mingfu; Hu, Aiqun; He, Chunlong

    We propose a new security model based on MLS Policy to achieve a better security performance on confidentiality, integrity and availability. First, it realizes a combination of BLP model and Biba model through a two-dimensional independent adjustment of integrity and confidentiality. And, the subject's access range is adjusted dynamically according to the security label of related objects and the subject's access history. Second, the security level of the trusted subject is extended to writing and reading privilege range respectively, following the principle of least privilege. Third, it adjusts the objects' security levels after adding confidential information to prevent the information disclosure. Fourth, it uses application-oriented logic to protect specific applications to avoid the degradation of security levels. Thus, it can ensure certain applications operate smoothly. Lastly, examples are presented to show the effectiveness and usability of the proposed model.

  1. [Confidentiality in HIV-infection/AIDS--a comment on the Communicable Disease Control Act].

    Science.gov (United States)

    Frich, J C

    1995-05-10

    The new Communicable Diseases Control Act has come into force in Norway. It makes it compulsory for a physician to warn a third party if it is obvious that a HIV-positive patient, with a high degree of certainty, puts the third party at risk of being infected with HIV. Some philosophers characterize medical confidentiality as an intransigent and absolute obligation, others as a prima facie duty. This article supports the latter view, but the author still argues that strict conditions have to be fulfilled before a physician should consider breaking medical confidentiality: The doctor must try repeatedly to gain the consent or co-operation of the patient involved. Possible negative long-term consequences for the preventive HIV-work support strict medical confidentiality.

  2. Corporate Integrity Agreement (CIA) documents

    Data.gov (United States)

    U.S. Department of Health & Human Services — OIG negotiates corporate integrity agreements (CIA) with health care providers and other entities as part of the settlement of Federal health care program...

  3. Nuclear security information: A balancing act between confidentiality and transparency

    International Nuclear Information System (INIS)

    Full text: Nuclear information security - the control of access to sensitive information as well as classification and control measures for nuclear security information - is one of the principles of nuclear security culture. On the other hand the genera l public should be aware, that security is a key consideration for nuclear plant operation and transports of nuclear material. The internet has influenced society and today in all areas access to information is quite easy and taken for granted. Nuclear security is no exception and general information about security is necessary. It is clear that details relating to sensitive security arrangements cannot be divulged to the general public but the release of appropriate information can be helpful in acquiring public confidence and support for nuclear security. The particular content and mode of disseminating this information is a balancing act between confidentiality and transparency. It may vary according to local and national circumstances, the particular public being addressed and prevailing circumstances and conditions. Taking up examples from the nuclear and the non-nuclear field, the paper will focus on some reflections on what could or should be observed, when giving information in sensitive areas and in particular on nuclear security matters. Reflections such as: When evaluating the pros and cons of a transparent policy in the field of nuclear security and trying to evaluate what information may be disclosed, we have to be aware, that we are acting in the delicate field of the nuclear discussion. Further our behaviour will be compared with the information policy in nuclear safety, where in general absolutely open information is applied. Information in general is spread by Medias. When entering in the information business. we have to understand and care about how the Medias work and behave. We have to decide who will enter in contact with the Medias and which information has to be given to whom, at what time and

  4. Security V/S Qos for LTE Authentication and Key Agreement Protocol

    Directory of Open Access Journals (Sweden)

    Jacques Bou Abdo

    2012-10-01

    Full Text Available Protocol and technology convergence, the core of near future communication, will soon be forming theinteroperating heterogeneous networks. Attaining a strict secure authentication without risking the QoSperformance and call success rates is a major concern when it comes to wireless heterogeneousnetworks. In order to achieve this, a generic, fast and secure, Authentication and Key Agreement protocolis to be used; a version of which is to be implemented between each two technologies. In this research,different existing EPS-EPS AKA protocols will be compared with our proposed protocol EC-AKA(Ensure Confidentiality Authentication and Key Agreement based on security, cost effectiveness,signaling overhead, delay and performance. It is proven that EC-AKA is the exclusive protocol satisfyingthe New Generation Network’s KPIs and it will be promoted as the target generic AKA protocol inheterogeneous networks.

  5. 49 CFR 512.17 - How long should it take to determine whether information is entitled to confidential treatment?

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 6 2010-10-01 2010-10-01 false How long should it take to determine whether information is entitled to confidential treatment? 512.17 Section 512.17 Transportation Other Regulations... TRANSPORTATION CONFIDENTIAL BUSINESS INFORMATION Agency Determination § 512.17 How long should it take...

  6. 49 CFR 512.20 - How does the agency treat information submitted pursuant to this part before a confidentiality...

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 6 2010-10-01 2010-10-01 false How does the agency treat information submitted pursuant to this part before a confidentiality determination is made? 512.20 Section 512.20 Transportation... Confidential § 512.20 How does the agency treat information submitted pursuant to this part before...

  7. Confidentiality Protection of User Data and Adaptive Resource Allocation for Managing Multiple Workflow Performance in Service-Based Systems

    Science.gov (United States)

    An, Ho

    2012-01-01

    In this dissertation, two interrelated problems of service-based systems (SBS) are addressed: protecting users' data confidentiality from service providers, and managing performance of multiple workflows in SBS. Current SBSs pose serious limitations to protecting users' data confidentiality. Since users' sensitive data is sent in…

  8. 21 CFR 814.9 - Confidentiality of data and information in a premarket approval application (PMA) file.

    Science.gov (United States)

    2010-04-01

    ..., DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PREMARKET APPROVAL OF MEDICAL DEVICES... secret or confidential commercial or financial information under § 20.61. (3) Any adverse reaction report...: (i) Any information that constitutes trade secret or confidential commercial or financial...

  9. 10 CFR 709.26 - Protection of confidentiality of CI evaluation records to include polygraph examination records...

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Protection of confidentiality of CI evaluation records to... Protection of confidentiality of CI evaluation records to include polygraph examination records and other pertinent documentation. (a) DOE owns all CI evaluation records, including polygraph examination records...

  10. Lithuanian general practitioners' knowledge of confidentiality laws in adolescent sexual and reproductive healthcare: a cross-sectional study

    DEFF Research Database (Denmark)

    Lazarus, Jeff; Jaruseviciene, Lina; Liljestrand, Jerker

    2008-01-01

    In Lithuania, the legislation addressing confidentiality in adolescent healthcare is contradictory and vague. Previous studies have also revealed that medico-legal knowledge among physicians is poor, and attitudes play a correspondingly greater role than legal knowledge in ensuring the confidenti...

  11. Cost-Benefit Analysis of Confidentiality Policies for Advanced Knowledge Management Systems

    Energy Technology Data Exchange (ETDEWEB)

    May, D

    2003-03-01

    Knowledge Discovery (KD) processes can create new information within a Knowledge Management (KM) system. In many domains, including government, this new information must be secured against unauthorized disclosure. Applying an appropriate confidentiality policy achieves this. However, it is not evident which confidentiality policy to apply, especially when the goals of sharing and disseminating knowledge have to be balanced with the requirements to secure knowledge. This work proposes to solve this problem by developing a cost-benefit analysis technique for examining the tradeoffs between securing and sharing discovered knowledge.

  12. Application of information technology may increase the efficacy of Confidential Unit Exclusion (CUE) in blood donors

    OpenAIRE

    Jalalian, Mehrdad; Mahboobi, Hamidreza

    2013-01-01

    Confidential Unit Exclusion (CUE) refers to a procedure by which a blood donor designates confidentially whether his or her blood might not be safe for transfusion. It applies to situations in which an individual who is not eligible for blood donation in terms of blood safety feel pressured by others to donate his or her blood. A potential problem in the CUE system is misunderstanding of the procedure and its significance by blood donors as well as the lack of their confidence regarding the c...

  13. Dentin penetrability evaluation of three different dyes in root-end cavities filled with mineral trioxide aggregate (MTA Avaliação da penetração dentinária de três diferentes corantes em retrocavidades obturadas com agregado trióxido mineral (MTA

    Directory of Open Access Journals (Sweden)

    Beatriz Farias Vogt

    2006-04-01

    Full Text Available The purpose of this study was to evaluate the penetration of three dyes in MTA root-end fillings. In 30 single-rooted teeth, cavities for retrofilling were prepared with an ultrasound appliance and filled with MTA. The specimens were randomly assigned to three groups (n = 10 and immersed in the following solutions: 2% methylene blue (MET, 50% silver nitrate (NIT and 0.2% rhodamine B (ROD. Two transversal slices (1 mm of the retrofilling region were obtained and evaluated using the Image Tool 3.0 software to obtain a quantitative evaluation (in mm² of the dye penetration around the retrofillings. Data were submitted to statistical analysis using Student’s t-test. The lowest degree of dye penetration was observed for the NIT group, in both slices (p A proposta deste trabalho foi avaliar a penetração de três corantes em retrocavidades obturadas com MTA. As retrocavidades foram confeccionadas com aparelho de ultra-som em 30 dentes unirradiculares e obturadas com MTA. Os espécimes foram divididos aleatoriamente em três grupos (n = 10 e imersos nas seguintes soluções corantes: azul de metileno a 2% (MET, nitrato de prata a 50% (NIT e rodamina B a 0,2% (ROD. Duas fatias transversais (1 mm da região retrobturada foram obtidas e avaliadas através do software Image Tool 3.0, objetivando quantificar a área (em mm² de penetração do corante ao redor das retrobturações. Os dados foram submetidos à análise estatística, utilizando o teste t de Student. A menor área de penetração foi observada no grupo NIT, nas duas fatias (p < 0.05. A penetração de corante foi significativamente maior no grupo ROD quando comparado ao grupo NIT, nas duas fatias (p < 0.05, e ao grupo MET, somente na fatia 1 (p < 0.05. Dentro das limitações desta pesquisa, concluiu-se que a escolha da solução corante pode influenciar a avaliação da penetração em estudos sobre retrobturações e que o grupo NIT teve a menor capacidade de penetração na dentina

  14. Risk-Based Confidentiality Requirements Specification for Outsourced IT Systems

    OpenAIRE

    Morali, Ayse; Wieringa, Roel

    2010-01-01

    Today, companies are required to be in control of their IT assets, and to provide proof of this in the form of independent IT audit reports. However, many companies have outsourced various parts of their IT systems to other companies, which potentially threatens the control they have of their IT assets. To provide proof of being in control of outsourced IT systems, the outsourcing client and outsourcing provider need a written service level agreement (SLA) that can be audited by an independen...

  15. Gender agreement and multiple referents

    Science.gov (United States)

    Finocchiaro, Chiara; Mahon, Bradford Z.; Caramazza, Alfonso

    2010-01-01

    We report a new pattern of usage in current, spoken Italian that has implications for both psycholinguistic models of language production and linguistic theories of language change. In Italian, gender agreement is mandatory for both singular and plural nouns. However, when two or more nouns of different grammatical gender appear in a conjoined noun phrase (NP), masculine plural agreement is required. In this study, we combined on-line and off-line methodologies in order to assess the mechanisms involved in gender marking in the context of multiple referents. The results of two pronoun production tasks showed that plural feminine agreement was significantly more difficult than plural masculine agreement. In a separate study using offline judgements of acceptability, we found that agreement violations in Italian are tolerated more readily in the case of feminine conjoined noun phrases (e.g., la mela e la banana ‘the:fem apple:fem and the: fem banana: fem’) than masculine conjoined noun phrases (e.g., il fiore e il libro ‘the:mas flower: mas and the:mas book:mas’). Implications of these results are discussed both at the level of functional architecture within the language production system and at the level of changes in language use.* PMID:21037930

  16. Gender agreement and multiple referents.

    Science.gov (United States)

    Finocchiaro, Chiara; Mahon, Bradford Z; Caramazza, Alfonso

    2008-01-01

    We report a new pattern of usage in current, spoken Italian that has implications for both psycholinguistic models of language production and linguistic theories of language change. In Italian, gender agreement is mandatory for both singular and plural nouns. However, when two or more nouns of different grammatical gender appear in a conjoined noun phrase (NP), masculine plural agreement is required. In this study, we combined on-line and off-line methodologies in order to assess the mechanisms involved in gender marking in the context of multiple referents. The results of two pronoun production tasks showed that plural feminine agreement was significantly more difficult than plural masculine agreement. In a separate study using offline judgements of acceptability, we found that agreement violations in Italian are tolerated more readily in the case of feminine conjoined noun phrases (e.g., la mela e la banana 'the:fem apple:fem and the: fem banana: fem') than masculine conjoined noun phrases (e.g., il fiore e il libro 'the:mas flower: mas and the:mas book:mas'). Implications of these results are discussed both at the level of functional architecture within the language production system and at the level of changes in language use.

  17. Evaluation of the reinforcement effect on teeth with different apical foramen diameters of retrograde or orthograde MTA application with internal matrix

    Directory of Open Access Journals (Sweden)

    Emre Bayram

    2016-01-01

    Full Text Available OBJECTIVE: The aim of this study was to determine the effect of the apical foramen diameter and different application methods of Mineral Trioxide Aggregate (MTA on the fracture resistance of simulated immature teeth using a Universal Testing Machine. MATERIALS AND METHOD: Ninety extracted human teeth were used for the fracture resistance test. The apical foramen was prepared to a diameter of 1.0 mm or 1.4 mm to simulate the open apex of immature teeth. MTA was mixed according to manufacturer's recommendations and placed into the root canals with different apical foramen diameter by four different root filling techniques: retrograde, two-phased orthograde, and ortograde with or without internal matrix. Prepared roots were marked 2 mm below the cemento-enamel junction and embedded in transparent acrylic resin in cylinder moulds. Vertical force was applied along the long axis of the tooth at a speed of 5 mm/min, and the maximum resistance to fracture for each tooth was determined in Newton. A software package was used for the statistical analysis. The data were analyzed by using one-way ANOVA and post-hoc Tukey tests. RESULTS: A statistically significant difference could not be observed between the groups (p>0.05 whereas statistically significant differences were found between the test groups and the control groups (p<0.05. CONCLUSION: There was no significant difference between different vertical root filling techniques in increasing the fracture strength of the teeth. The diameter of the apical foramen did not have a significant effect on the fracture resistance.

  18. Framework agreements in public procurement

    DEFF Research Database (Denmark)

    Andrecka, Marta; Telles, Pedro

    2015-01-01

    Interview with Dr. Marta Andrecka, Postdoctoral Fellow at the Department of Law at the University of Aarhus, where she is currently working on a project called "Dealing with legal loopholes and uncertainties within EU public procurement law regarding framework agreements" sponsored by the Carlsberg...... Foundation. Before taking up her present position she carried out her doctoral research in Denmark and Australia and worked at law offices in both Poland and the UK. The topic for today’s talk is framework agreements, a relatively popular way of undertaking public procurement...

  19. Adolescents' attitudes toward confidentiality between the school counsellor and the adolescent client.

    Science.gov (United States)

    Collins, N; Knowles, A D

    1995-11-01

    It is increasingly acknowledged that confidentiality is relative rather than absolute in any counselling relationship. This is particularly the case for minors receiving counselling at school, where third parties such as parents and teachers frequently have access to information about an adolescent client. The Australian Psychological Society's Code of Professional Conduct (1986) states that minors are unable to provide voluntary, informed consent in consulting relationships, although current research does not necessarily support this view. The current study investigated adolescents' attitudes to confidentiality in situations that may commonly arise in school counselling. The study also investigated the third parties to whom adolescents believed information should be disclosed by a counsellor. Respondents were 303 male and 254 female students attending three single-sex nongovernment schools. Ages ranged from 13 to 18 years. Results suggested that the adolescents' attitudes to confidentiality generally corresponded with adult views. Many adolescents wanted more autonomy regarding disclosure of information obtained in a counselling situation than the APS code provides. Parents were the only third party to whom the adolescents generally believed disclosure should be made. There were few age differences, but a wide range of opinions were evident, with female adolescents consistently more strongly in favor of confidentiality than males. PMID:17144046

  20. 6 CFR 25.10 - Confidentiality and protection of Intellectual Property.

    Science.gov (United States)

    2010-01-01

    ... protection of Intellectual Property. (a) General. The Secretary, in consultation with the Office of... 6 Domestic Security 1 2010-01-01 2010-01-01 false Confidentiality and protection of Intellectual Property. 25.10 Section 25.10 Domestic Security DEPARTMENT OF HOMELAND SECURITY, OFFICE OF THE...

  1. Wavelet-Based ECG Steganography for Protecting Patient Confidential Information in Point-of-Care Systems.

    Science.gov (United States)

    Ibaida, Ayman; Khalil, Ibrahim

    2013-12-01

    With the growing number of aging population and a significant portion of that suffering from cardiac diseases, it is conceivable that remote ECG patient monitoring systems are expected to be widely used as point-of-care (PoC) applications in hospitals around the world. Therefore, huge amount of ECG signal collected by body sensor networks from remote patients at homes will be transmitted along with other physiological readings such as blood pressure, temperature, glucose level, etc., and diagnosed by those remote patient monitoring systems. It is utterly important that patient confidentiality is protected while data are being transmitted over the public network as well as when they are stored in hospital servers used by remote monitoring systems. In this paper, a wavelet-based steganography technique has been introduced which combines encryption and scrambling technique to protect patient confidential data. The proposed method allows ECG signal to hide its corresponding patient confidential data and other physiological information thus guaranteeing the integration between ECG and the rest. To evaluate the effectiveness of the proposed technique on the ECG signal, two distortion measurement metrics have been used: the percentage residual difference and the wavelet weighted PRD. It is found that the proposed technique provides high-security protection for patients data with low (less than 1%) distortion and ECG data remain diagnosable after watermarking (i.e., hiding patient confidential data) and as well as after watermarks (i.e., hidden data) are removed from the watermarked data.

  2. 75 FR 60452 - Clean Water Act; Contractor Access to Confidential Business Information

    Science.gov (United States)

    2010-09-30

    ... AGENCY Clean Water Act; Contractor Access to Confidential Business Information AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The Environmental Protection Agency's (EPA) Office of Water... standards under the Clean Water Act (CWA). Interested persons may submit comments on this intended...

  3. 78 FR 79692 - Clean Water Act; Contractor Access to Confidential Business Information

    Science.gov (United States)

    2013-12-31

    ... AGENCY Clean Water Act; Contractor Access to Confidential Business Information AGENCY: Environmental... access to CBI submitted to EPA under Section 308 of the Clean Water Act (CWA) and in connection with... authorized Abt Associates, Inc. (Abt), its subcontractors, and its consultants to access...

  4. 77 FR 60962 - Clean Water Act; Contractor Access to Confidential Business Information

    Science.gov (United States)

    2012-10-05

    ... AGENCY 40 CFR Part 2 Clean Water Act; Contractor Access to Confidential Business Information AGENCY... Clean Water Act and in connection with various programs and are providing notice and an opportunity to... under the Clean Water Act (CWA). The information being transferred was or will be collected under...

  5. 75 FR 55577 - Clean Water Act; Contractor Access to Confidential Business Information

    Science.gov (United States)

    2010-09-13

    ... AGENCY Clean Water Act; Contractor Access to Confidential Business Information AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The Environmental Protection Agency's (EPA) Office of Water... of section 308 of the Clean Water Act (CWA). Some information being transferred from the pulp,...

  6. 42 CFR 423.136 - Privacy, confidentiality, and accuracy of enrollee records.

    Science.gov (United States)

    2010-10-01

    ... records. 423.136 Section 423.136 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM VOLUNTARY MEDICARE PRESCRIPTION DRUG BENEFIT Benefits and Beneficiary Protections § 423.136 Privacy, confidentiality, and accuracy of enrollee...

  7. 40 CFR 68.152 - Substantiating claims of confidential business information.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 15 2010-07-01 2010-07-01 false Substantiating claims of confidential business information. 68.152 Section 68.152 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CHEMICAL ACCIDENT PREVENTION PROVISIONS Risk Management Plan §...

  8. 40 CFR 68.151 - Assertion of claims of confidential business information.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 15 2010-07-01 2010-07-01 false Assertion of claims of confidential business information. 68.151 Section 68.151 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CHEMICAL ACCIDENT PREVENTION PROVISIONS Risk Management Plan §...

  9. 40 CFR 260.2 - Availability of information; confidentiality of information.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 25 2010-07-01 2010-07-01 false Availability of information; confidentiality of information. 260.2 Section 260.2 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) HAZARDOUS WASTE MANAGEMENT SYSTEM: GENERAL General § 260.2...

  10. 5 CFR 213.3301 - Positions of a confidential or policy-determining nature.

    Science.gov (United States)

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Positions of a confidential or policy-determining nature. 213.3301 Section 213.3301 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL... or policy-determining nature. (a) Upon specific authorization by OPM, agencies may make...

  11. 19 CFR 206.47 - Limited disclosure of certain confidential business information under administrative protective...

    Science.gov (United States)

    2010-04-01

    ... business information under administrative protective order. 206.47 Section 206.47 Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS RELATING TO GLOBAL... Investigations for Relief From Market Disruption § 206.47 Limited disclosure of certain confidential...

  12. 77 FR 12284 - Access to Confidential Business Information; Protection Strategies Incorporated

    Science.gov (United States)

    2012-02-29

    ... AGENCY Access to Confidential Business Information; Protection Strategies Incorporated AGENCY... Strategies Incorporated (PSI) of Arlington, VA, to access information which has been submitted to EPA under all sections of the Toxic Substances Control Act (TSCA). Some of the information may be claimed...

  13. 76 FR 52659 - Access by EPA Contractors to Confidential Business Information (CBI) Related to the Greenhouse...

    Science.gov (United States)

    2011-08-23

    ... AGENCY Access by EPA Contractors to Confidential Business Information (CBI) Related to the Greenhouse Gas... be submitted to EPA under the Greenhouse Gas Reporting Program that may be designated or claimed as...), EPA created the Greenhouse Gas Reporting Program (GHGRP), 40 CFR part 98 (part 98), which...

  14. Confidentiality Issues when Minor Children Disclose Family Secrets in Family Counseling

    Science.gov (United States)

    McCurdy, Kenneth G.; Murray, Kenneth C.

    2003-01-01

    The literature addressing ethical issues involved in the disclosure of family secrets in counseling has typically focused on secrets disclosed by adults, ignoring the ethical issues surrounding individual disclosure by minor children and confidentiality within the family counseling context. This article explores family secrets, confidentiality…

  15. 45 CFR 61.14 - Confidentiality of Healthcare Integrity and Protection Data Bank information.

    Science.gov (United States)

    2010-10-01

    ... GENERAL ADMINISTRATION HEALTHCARE INTEGRITY AND PROTECTION DATA BANK FOR FINAL ADVERSE INFORMATION ON HEALTH CARE PROVIDERS, SUPPLIERS AND PRACTITIONERS Disclosure of Information by the Healthcare Integrity... 45 Public Welfare 1 2010-10-01 2010-10-01 false Confidentiality of Healthcare Integrity...

  16. 77 FR 10506 - Access to Confidential Business Information by Syracuse Research Corporation, Inc., and Its...

    Science.gov (United States)

    2012-02-22

    ... AGENCY Access to Confidential Business Information by Syracuse Research Corporation, Inc., and Its...: Notice. SUMMARY: EPA has authorized its contractor, Syracuse Research Corporation (SRC), Inc., of North Syracuse, NY, and its identified subcontractor BeakerTree Corporation to access information which has...

  17. 19 CFR 206.17 - Limited disclosure of certain confidential business information under administrative protective...

    Science.gov (United States)

    2010-04-01

    ... Investigations Relating to Global Safeguard Actions § 206.17 Limited disclosure of certain confidential business... business information under administrative protective order. 206.17 Section 206.17 Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS RELATING TO...

  18. 78 FR 47421 - Scope of the Copyright Royalty Judges Authority to Adopt Confidentiality Requirements upon...

    Science.gov (United States)

    2013-08-05

    ... Phonorecords II, 77 FR 29259 (May 17, 2012). The proposed regulations included ``confidentiality requirements... of the settling parties to a distribution and rate proceeding'' Id. at 8, citing 74 FR 4510, 4514.... at 8-9, citing 74 FR 4537, 4540 (Jan. 26, 2009). The Settling Participants point out that the...

  19. Providing integrity, authenticity, and confidentiality for header and pixel data of DICOM images.

    Science.gov (United States)

    Al-Haj, Ali

    2015-04-01

    Exchange of medical images over public networks is subjected to different types of security threats. This has triggered persisting demands for secured telemedicine implementations that will provide confidentiality, authenticity, and integrity for the transmitted images. The medical image exchange standard (DICOM) offers mechanisms to provide confidentiality for the header data of the image but not for the pixel data. On the other hand, it offers mechanisms to achieve authenticity and integrity for the pixel data but not for the header data. In this paper, we propose a crypto-based algorithm that provides confidentially, authenticity, and integrity for the pixel data, as well as for the header data. This is achieved by applying strong cryptographic primitives utilizing internally generated security data, such as encryption keys, hashing codes, and digital signatures. The security data are generated internally from the header and the pixel data, thus a strong bond is established between the DICOM data and the corresponding security data. The proposed algorithm has been evaluated extensively using DICOM images of different modalities. Simulation experiments show that confidentiality, authenticity, and integrity have been achieved as reflected by the results we obtained for normalized correlation, entropy, PSNR, histogram analysis, and robustness.

  20. 32 CFR 727.8 - Confidential and privileged character of service provided.

    Science.gov (United States)

    2010-07-01

    ... legal sense as outlined in the Code of Professional Responsibility, as opposed to confidential in the... individual legal assistance client by name or any other particular, such as social security number, shall be... fear that their confidence will be abused or used against them in any way. While case files are...

  1. 77 FR 25475 - Inquiry To Learn Whether Businesses Assert Business Confidentiality Claims Regarding Waste Import...

    Science.gov (United States)

    2012-04-30

    ... AGENCY Inquiry To Learn Whether Businesses Assert Business Confidentiality Claims Regarding Waste Import... notices similar to this one in the Federal Register, the latest one being at 76 FR 362, January 4, 2011... information at issue: the preliminary inquiry and the notice of opportunity to comment. a. Inquiry To...

  2. 75 FR 4812 - Inquiry To Learn Whether Businesses Assert Business Confidentiality Claims

    Science.gov (United States)

    2010-01-29

    ... AGENCY Inquiry To Learn Whether Businesses Assert Business Confidentiality Claims AGENCY: Environmental... Information EPA has previously published notices similar to this one in the Federal Register, at 74 FR 20293, May 1, 2009, and 72 FR 21006, April 27, 2007 that address issues similar to those raised by...

  3. 76 FR 362 - Inquiry To Learn Whether Businesses Assert Business Confidentiality Claims

    Science.gov (United States)

    2011-01-04

    ... AGENCY Inquiry To Learn Whether Businesses Assert Business Confidentiality Claims AGENCY: Environmental... previously published notices similar to this one in the Federal Register, the latest one being at 75 FR 4812... issue: The preliminary inquiry and the notice of opportunity to comment. a. Inquiry To Learn...

  4. 77 FR 109 - Inquiry To Learn Whether Businesses Assert Business Confidentiality Claims Regarding Waste Import...

    Science.gov (United States)

    2012-01-03

    ... AGENCY Inquiry To Learn Whether Businesses Assert Business Confidentiality Claims Regarding Waste Import... published notices similar to this one in the Federal Register, the latest one being at 76 FR 362, January 4... and the notice of opportunity to comment. a. Inquiry To Learn Whether Affected Businesses (Other...

  5. 75 FR 44951 - Inquiry To Learn Whether Businesses Assert Business Confidentiality Claims

    Science.gov (United States)

    2010-07-30

    ... AGENCY Inquiry To Learn Whether Businesses Assert Business Confidentiality Claims AGENCY: Environmental... previously published notices similar to this one in the Federal Register, the latest one being at 75 FR 4812... issue: The preliminary inquiry and the notice of opportunity to comment. a. Inquiry To Learn...

  6. 21 CFR 822.23 - Is the information in my submission considered confidential?

    Science.gov (United States)

    2010-04-01

    ... SERVICES (CONTINUED) MEDICAL DEVICES POSTMARKET SURVEILLANCE FDA Review and Action § 822.23 Is the... with the Freedom of Information Act. We will continue to protect trade secret and confidential... patients. You may wish to indicate in your submission which information you consider trade secret...

  7. The Confidentiality of Medical Secrets of Patients by the Nursing Staff

    Directory of Open Access Journals (Sweden)

    Chalkias Theodoros

    2010-01-01

    Full Text Available In this article you will find a critical discussion about the significance of confidentiality of "medical secrets" (keeping the secrets of ill people by nurses. Special cases are mentioned regarding the need to keep, or reveal the secret.

  8. 78 FR 2669 - Waste Import and Export; Inquiry To Learn Whether Businesses Assert Business Confidentiality Claims

    Science.gov (United States)

    2013-01-14

    ... responses to this notice must be in the English language. 5. The Effect of Failure To Respond to This Notice... AGENCY Waste Import and Export; Inquiry To Learn Whether Businesses Assert Business Confidentiality... comments, identified by Docket ID No. EPA-HQ- OECA-2012-0957, by one of the following methods:...

  9. 75 FR 75593 - Financial Crimes Enforcement Network; Confidentiality of Suspicious Activity Reports

    Science.gov (United States)

    2010-12-03

    ... confidentiality.\\13\\ This distinction is set forth in the final rule's second rule of construction and reflects... financial institutions to report suspicious activity without fear of reprisal--leans heavily in favor of... applicable to all persons not authorized in the rules of construction to receive such information....

  10. 77 FR 29635 - Access to Confidential Business Information by Several Student Services Contractors

    Science.gov (United States)

    2012-05-18

    ... AGENCY Access to Confidential Business Information by Several Student Services Contractors AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: EPA will be authorizing several Student Services contractors to access information which has been submitted to EPA under all sections of the Toxic...

  11. 76 FR 9012 - Access to Confidential Business Information by Electronic Consulting Services, Inc.

    Science.gov (United States)

    2011-02-16

    ... AGENCY Access to Confidential Business Information by Electronic Consulting Services, Inc. AGENCY... Consulting Services, Inc. (ECS) of Fairfax, VA, to access information which has been submitted to EPA under all sections of the Toxic Substances Control Act (TSCA). Some of the information may be claimed...

  12. 76 FR 77816 - Access to Confidential Business Information by Guident Technologies, Inc. and Subcontractor...

    Science.gov (United States)

    2011-12-14

    ... AGENCY Access to Confidential Business Information by Guident Technologies, Inc. and Subcontractor...: EPA has authorized its contractor, Guident Technologies, Inc. of Herndon, VA and subcontractor, Impact Innovations Systems, Inc. of Manassas, VA to access information which has been submitted to EPA under...

  13. 75 FR 70672 - Access to Confidential Business Information by Computer Sciences Corporation and Its Identified...

    Science.gov (United States)

    2010-11-18

    ... AGENCY Access to Confidential Business Information by Computer Sciences Corporation and Its Identified... contractor, Computer Sciences Corporation (CSC) of Chantilly, VA and Its Identified Subcontractors, to access... whose disclosure is restricted by statute. Certain other material, such as copyrighted material, will...

  14. 78 FR 29367 - Access to Confidential Business Information by ABT Associates, Incorporated; Perry Johnson...

    Science.gov (United States)

    2013-05-20

    ... AGENCY Access to Confidential Business Information by ABT Associates, Incorporated; Perry Johnson Registrars, Inc.; SGS North America, Inc.; SAI Global, Inc.; Orion Registrar, Inc.; NSF-ISR International... Global; Orion Registrar, Inc.; NSF- ISR International, and T V S D America, Inc., also known as...

  15. Form 6 - gas balancing agreement

    International Nuclear Information System (INIS)

    In 1988, a special Committee of the Rocky Mountain Mineral Law Foundation undertook a project to draft a model from gas balancing agreement. This project was initiated at the request of a number of Foundation members who felt that a model form gas balancing agreement would facilitate the negotiation of operating agreement, since gas balancing issues had become sticking points in the process. The Committee was composed of attorneys representing a wide cross-section of the oil and gas industry including both major and independent oil companies, production companies with interstate pipeline affiliates, and private practitioners. The Committee attempted to address the more controversial issues in gas balancing with optional provisions in the Form. To facilitate the negotiation process, the number of optional provisions was minimized. This form may be used as an Appendix to the new A.A.P.L. Form 610-1989 Model Form Operating Agreement. This book includes provision of this Form which are: Ownership of gas production; Balancing of production accounts; Cash balancing upon depletion; Deliverability tests; Nominations; Statements; Payment of taxes; Operating expenses; Overproducing allowable; Payment of leasehold burdens; Operator's liability; Successors and assigns; Audits; Arbitration; and Operator's fees

  16. Analysis of the ethical aspects of professional confidentiality in dental practice

    Directory of Open Access Journals (Sweden)

    Cléa Adas Saliba Garbin

    2008-02-01

    Full Text Available From the point of view of deontological ethics, privacy is a moral right that patients are entitled to and it is bound to professional confidentiality. Otherwise, the information given by patients to health professionals would not be reliable and a trustable relationship could not be established. The aim of the present study was to assess, by means of questionnaires with open and closed questions, the awareness and attitudes of 100 dentists working in the city of Andradina, São Paulo State, Brazil, with respect to professional confidentiality in dental practice. Most dentists (91.43% reported to have instructed their assistants on professional confidentiality. However, 44.29% of the interviewees showed to act contradictorily as reported talking about the clinical cases of their patients to their friends or spouses. The great majority of professionals (98.57% believed that it is important to have classes on Ethics and Bioethics during graduation and, when asked about their knowledge of the penalties imposed for breach of professional confidentiality, only 48.57% of them declared to be aware of it. Only 28.57% of the interviewees affirmed to have exclusive access to the files; 67.14% reported that that files were also accessed by their secretary; 1.43% answered that their spouses also had access, and 2.86% did not answer. From the results of the present survey, it could be observed that, although dentists affirmed to be aware of professional confidentiality, their attitudes did not adhere to ethical and legal requirements. This stand of health professionals has contributed to violate professional ethics and the law itself, bringing problems both to the professional and to the patient.

  17. Confidentiality of the medical records of HIV-positive patients in the United Kingdom – a medicolegal and ethical perspective

    Directory of Open Access Journals (Sweden)

    Mike Williams

    2011-01-01

    Full Text Available Mike WilliamsHead of Service, Cambridge University Dental Service, Cambridge, UKAbstract: This article examines the legal and ethical issues that surround the confidentiality of medical records, particularly in relation to patients who are HIV positive. It records some historical background of the HIV epidemic, and considers the relative risks of transmission of HIV from individual to individual. It explains the law as it pertains to confidentiality, and reports the professional guidance in these matters. It then considers how these relate to HIV-positive individuals in particular.Keywords: HIV/AIDS, confidentiality, medical records

  18. Offeree silence and contractual agreement.

    OpenAIRE

    Austen-Baker, Richard

    2006-01-01

    This article considers the mechanics of acceptance in the law of contract, focusing on the question of whether the silence of an offeree can effect acceptance. It finds the rule in Felthouse v Bindley (1862) alive and well, but creating problems for judges anxious to find agreements in place. The article considers whether there is, as sometimes suggested, a ‘duty to speak’ and dismisses this, along with any other supposed exceptions to the rule, concluding that silence cannot effect acceptanc...

  19. Managing Enterprise Service Level Agreement

    OpenAIRE

    Yang Li

    2010-01-01

    The continued trend of globalization and technology improvement like the internet and transportation have spawned an increasing number of complex service chains that span across local, regional and national boundaries. Service level agreement (SLA) plays a crucial role in gluing service chains together. In that regard, this paper provides a complete guidance of end-to-end lifecycle management of SLA, including SLA-aware service modelling and terms optimization, contract drafting and complianc...

  20. Report on the 13th symposium on invertebrate neurobiology held 26-30 August 2015 at the Balaton Limnological Institute, MTA Centre for ecological research of the Hungarian Academy of Sciences, Tihany, Hungary.

    Science.gov (United States)

    Crisford, Anna; Holden-Dye, Lindy; Walker, Robert J

    2016-06-01

    This report summarizes the lectures and posters presented at the International Society for Invertebrate Neurobiology's 13th symposium held 26-30 August 2015, at the Balaton Limnological Institute, MTA Centre for Ecological Research, Tihany, Hungary. The symposium provided an opportunity for scientists working on a range of topics in invertebrate neurobiology to meet and present their research and discuss ways to advance the discipline.

  1. Scanning electron microscopy (SEM) evaluation of sealing ability of MTA and EndoSequence as root-end filling materials with chitosan and carboxymethyl chitosan (CMC) as retrograde smear layer removing agents

    OpenAIRE

    Bolla Nagesh; Eppala Jeevani; Varri Sujana; Bharagavi Damaraju; Kaluvakolanu Sreeha; Penumaka Ramesh

    2016-01-01

    Aim: The purpose of this study was to evaluate the sealing ability of mineral trioxide aggregate (MTA) and EndoSequence with chitosan and carboxymethyl chitosan (CMC) as retrograde smear layer removing agents using scanning electron microscopy (SEM). Materials and Methods: Forty human single rooted teeth were taken. Crowns were decoronated and canals were obturated. Apically roots were resected and retrograde cavities were done. Based on the type of retrograde material placed and the typ...

  2. Átmenet a mezőgazdaságban - agrárgazdaságtan átmenetben. MTA Közgazdaságtudományi Intézet, Budapest, 2004. november 7-8.

    OpenAIRE

    B., B.; F., Sz.

    2005-01-01

    Az MTA Közgazdaságtudományi Intézet alapításának 50. évfordulójához kapcsolódó konferenciasorozat egyik rendezvénye az Átmenet a mezőgazdaságban - agrárgazdaságtan átmenetben (Transition in Agriculture - Agricultural Economics in Transition) című nemzetközi konferencia volt.

  3. Use of MTA as internal matrix to repair pathological perforations of the pulp floor in primary molars%MTA内屏障技术用于乳磨牙龋源性髓底穿孔的临床研究

    Institute of Scientific and Technical Information of China (English)

    徐晓岚; 徐耕耘; 杜跃谦; 姚淑萍

    2010-01-01

    目的:观察矿物三氧化聚合物(MTA)加药物糊剂、MTA、GIC修补乳磨牙髓室底龋源性穿孔的临床效果,以及穿孔大小对于治疗结果的影响.方法:将173例198颗龋源性髓底穿孔的乳磨牙,按穿孔大小分为两组,每组中随机分3个亚组,分别用MTA加药物糊剂(A、D组)、MTA(B、E组)、GIC(C、F组)修补,每牙均行根管治疗+穿孔修补,术后1、6、12、24月复查,并两两比较,对疗效进行评价.结果:小穿孔组疗效明显优于大穿孔组,至24月复查时疗效区别明显(P<0.01),对于大穿孔直径>2mm,MTA要优于GIC,MTA+药物组优于MTA组.结论:MTA内屏障技术修补乳磨牙髓室底穿孔(直径≤2mm)效果显著,乳磨牙髓室底大穿孔(直径>2mm)则用MTA+药物糊剂修补远期疗效理想.

  4. Assessment of the influence of Laser phototherapy on the bone repair process of complete fractures in tibiae of rabbits stabilized with semi-rigid internal fixation treated with or without MTA graft: a histological study

    Science.gov (United States)

    Soares, Luiz G. P.; Silva, Aline C. P.; Silva, Anna Paula L. T.; Neves, Bruno Luiz R. C.; Santos, Nicole R. S.; dos Santos, Jean N.; Pinheiro, Antonio L. B.

    2016-03-01

    Beside biomaterials, Laser phototherapy has shown positive effects as auxiliary therapy in bone repair process, especially when involving large bone losses. The aim of this histological study was to evaluate, by light microscopy, the influence of laser phototherapy on the repair of complete tibial fractures in rabbits treated or not with semi-rigid internal fixation and Mineral Trioxide Aggregate - MTA graft. Twelve Rabbits were randomly divided into four groups with three animals each. After general anesthesia, complete fractures were created in one tibia with a carborundum disk. All animals (groups I-IV) had the fracture stabilized with semi-rigid fixation (wire osteosynthesis - WO). Group I was routinely fixed with WO; groups II and IV fracture was filled by blood clot and MTA implant. In Groups III and IV fracture was filled by blood clot and further irradiated with laser (λ780 nm, 70 mW, CW, Φ = 0.04 cm2, 20.4 J/cm2, per session, t = 300s, 142.8 J/cm2 per treatment). The phototherapy protocol was applied immediately after the surgery and repeated each 48 hours during 15 days. Animal death occurred on the 30th postoperative day. After removal of the specimens, the samples were routinely processed, stained with HE and evaluated by light microscopy. Histologically, the group treated with MTA graft and irradiated with laser showed the fracture filled by a more organized and mature trabecular bone, when compared with all other groups. From the results of the present study, it may be concluded that the association of Laser phototherapy + MTA graft in fractures treated with WO improved bone repair when compared with fractures treated only with WO.

  5. The General Unenforceability of Collective Agreements under Nigerian Labour Jurisprudence: The Paradox of Agreement without Agreement

    Directory of Open Access Journals (Sweden)

    Vincent Iwunze

    2013-12-01

    Full Text Available This study considers the status of collective agreements under Nigerian labour law, examining the extent of their enforceability under the extant laws. It considers the emerging trends in some more advanced jurisdictions of the world in that regard and comparatively portrays the anachronisms of the Nigerian law on the point. It takes the position that the current legal climate as regards the legal status of collective agreements under Nigerian law is potentially disruptive of industrial peace and harmony and is bound to occasion serious hardship on employees. The work suggests among others a jurisprudential shift in paradigm if the Nigerian labour jurisprudence must meet and be reflective of modern socio-economic realities.

  6. Scanning electron microscopy (SEM evaluation of sealing ability of MTA and EndoSequence as root-end filling materials with chitosan and carboxymethyl chitosan (CMC as retrograde smear layer removing agents

    Directory of Open Access Journals (Sweden)

    Bolla Nagesh

    2016-01-01

    Full Text Available Aim: The purpose of this study was to evaluate the sealing ability of mineral trioxide aggregate (MTA and EndoSequence with chitosan and carboxymethyl chitosan (CMC as retrograde smear layer removing agents using scanning electron microscopy (SEM. Materials and Methods: Forty human single rooted teeth were taken. Crowns were decoronated and canals were obturated. Apically roots were resected and retrograde cavities were done. Based on the type of retrograde material placed and the type of smear layer removal agent used for retrograde cavities, they were divided into four groups (N = 10: Group I chitosan with EndoSequence, group II chitosan with MTA, group III CMC with EndoSequence, and Group IV CMC with MTA. All the samples were longitudinally sectioned, and the SEM analysis was done for marginal adaptation. Statistical Analysis: Kruskal-Wallis and Mann-Witney analysis tests. Results: SEM images showed the presence of less gaps in group III, i.e., CMC with EndoSequence when compared to other groups with statistically significant difference. Conclusion: Within the limited scope of this study, it was concluded that EndoSequence as retrograde material showed better marginal sealing ability.

  7. MECHANICAL PROPERTY RESEARCH OF sPS/PET/SsPS/MTA COMPOSITES%sPS/PET/SsPS/MTA复合材料的力学性能研究

    Institute of Scientific and Technical Information of China (English)

    王进; 祝方明; 林尚安

    2002-01-01

    用保持正常熔体插层法制备了新型的间规聚苯乙烯(sPS)/聚对苯二甲酸乙二酯(PET)/磺化间规聚苯乙烯(SsPS-H)及其锌盐(SsPS-Zn)/11-氨基酸改性蒙脱土(MTA)复合材料,该材料的综合力学性能较未加MTA材料显著提高.加入2份MTA时,sPS/PET/SsPS-H/MTA(质量比为85/15/4/2)和sPS/PET/SsPS-Zn/MTA(质量比为85/15/2/2)复合材料的冲击强度达到最大值,分别为15.6 kJ/m2和14.7 kJ/m2,约是纯sPS的3.5倍,是未加MTA材料的1.5倍.拉伸强度和弯曲强度比未填充材料都提高了约30 MPa.

  8. Changes in public attitudes towards confidential adolescent sexual and reproductive health services in Lithuania after the introduction of new legislation

    DEFF Research Database (Denmark)

    Jaruseviciene, Lina; Zaborskis, Apolinaras; Sauliune, Skirmante;

    2015-01-01

    BACKGROUND: In Lithuania, the right to confidentiality in healthcare for adolescents over the age of 16 was guaranteed in 2010 through the adoption of new legislation. This study sets out to explore changes in Lithuanian residents' attitudes towards confidentiality protection in adolescent sexual...... to 73% in 2012. Regardless of their belief in the importance of confidentiality, in 2012 respondents more often indicated positive outcomes on the relations between the physician and the minor patient, such as increased trust of the adolescent in the physician and more frequent visits to physicians...... outcomes if laws were enacted to further protect adolescent confidentiality. CONCLUSIONS: This study uncovers the dynamics of public attitudes towards the socially and ethically sensitive issue of adolescent SRH. Our study suggests that legislation could be a factor prompting changes in public opinion...

  9. A Comparison of the Clinical Effect between MTA and Dycal in Partial vital Pulpotomy of Young Permanent Tooth%MTA与氢氧化钙直接盖髓在年轻恒前牙外伤治疗中的疗效观察

    Institute of Scientific and Technical Information of China (English)

    吴欣帆

    2014-01-01

    Objective MTA observed with calcium hydroxide direct pulp capping effect of trauma in young permanent teeth before treatment. Methods Our hospital 40 cases of young permanent teeth due to trauma and accident exposed pulp were randomly divided into two groups, namely, the MTA and calcium hydroxide as the surgical treatment of capping agent for treatment and after 6 months, 1 year, 2 years and 3 years for review, analysis and evaluation of efficacy. Result After six months, one year after the review, MTA treatment groups were similar with calcium hydroxide, the difference was not statistically comparable (P>0.05); after 2 years, 3 years for review, MTA group treatment significantly better than the calcium hydroxide group, the two groups there was a significant treatment effect difference was statistically significant (P<0.05). Conclusion MTA is a good kind of drug in pulpotomy for the young permanent teeth,and its clinical effects are better than those of calium hydroxide,and it is worthwide application.%目的:观察 MTA 与氢氧化钙直接盖髓在年轻恒前牙外伤治疗中的效果。方法选取我院40例年轻恒前牙因外伤而意外露髓患者随机分成两组,分别将 MTA 及氢氧化钙作为手术治疗中的盖髓剂进行治疗,并在术后6个月、1年、2年及3年进行复查,分析评价疗效。结果术后6个月、1年后复查,MTA 组治疗效果与氢氧化钙组相似,差异在统计学上没有可比性(P >0.05);术后2年、3年进行复查, MTA 组治疗效果明显优于氢氧化钙组,两组治疗效果有显著性差异,有统计学意义(P <0.05)。结论年轻恒前牙外伤治疗中,盖髓剂应优先选择 MTA,MTA 的远期治疗效果明显优于氢氧化钙。

  10. The break of medical confidentiality for the benefit of public health: a controversial topic

    Directory of Open Access Journals (Sweden)

    Papageorgiou Ε.

    2013-10-01

    Full Text Available Aim: This paper refers to the decision made by the Greek Government to publish photographs and personal data of HIV positive sex workers on the grounds of protecting public health. Method: Initially, the law and theoretical background of medical confidentiality and its break were reviewed and then the conditions and data that led to the specific decision made by the Greek Authorities were investigated. Also the contribution of NGOs in the prevention of Public Health was studied. Conclusion: The survey showed that in this particular case the break of confidentiality was excessive and biased due to the origin and illegal activity of the women. A proper solution to the HIV/AIDS outbreak would be the intensification of prevention. In this sector, NGOs can and should play an active role considering that the primary care in Greece, especially during the economic crisis, shows organizational and operational weaknesses.

  11. Controls Mitigating the Risk of Confidential Information Disclosure by Facebook: Essential Concern in Auditing Information Security

    Directory of Open Access Journals (Sweden)

    Ivan Ognyanov Kuyumdzhiev

    2014-08-01

    Full Text Available Facebook allows people to easily share information about themselves which in some cases could be classified as confidential or sensitive in the organisation they’re working for. In this paper we discuss the type of data stored by Facebook and the scope of the terms “confidential” and “sensitive data”. The intersection of these areas shows that there is high possibility for confidential data disclosure in organisations with none or ineffective security policy. This paper proposes a strategy for managing the risks of information leakage. We define five levels of controls against posting non-public data on Facebook - security policy, applications installed on employees’ workstations, specific router software or firmware, software in the cloud, Facebook itself. Advantages and disadvantages of every level are evaluated. As a result we propose developing of new control integrated in the social media.

  12. Violating confidentiality to warn of a risk of HIV infection: ethical work in progress.

    Science.gov (United States)

    Freedman, B

    1991-12-01

    The old literature on whether medical confidentiality may be breached to warn a spouse of a risk of contracting syphilis from his/her partner - a deep and rich literature - has become relevant once again in the context of HIV infection and AIDS. This paper examines the reasoning and method employed in: the Catholic approach centered around the patient's (property) right to the secret; a (generic) model of justice, utilizing minimal principles of non-aggression and restitution; and an approach involving the elimination of unstable alternatives: the view that public health officials, but not the spouse, may/must be notified; and, that maintaining that the physician is at liberty to disclose but is not obliged to do so. The theory and method behind confidentiality turns out to be deeper than you might have anticipated.

  13. 25 CFR 163.71 - Agreement funding.

    Science.gov (United States)

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Agreement funding. 163.71 Section 163.71 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GENERAL FORESTRY REGULATIONS Cooperative Agreements § 163.71 Agreement funding. In cooperative agreements, the Secretary is authorized to advance...

  14. 7 CFR 947.111 - Marketing agreement.

    Science.gov (United States)

    2010-01-01

    ... Definitions § 947.111 Marketing agreement. Marketing agreement means Marketing Agreement No. 114, as amended. ... 7 Agriculture 8 2010-01-01 2010-01-01 false Marketing agreement. 947.111 Section 947.111 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE...

  15. Safeguarding critical e-documents implementing a program for securing confidential information assets

    CERN Document Server

    Smallwood, Robert F

    2012-01-01

    Practical, step-by-step guidance for corporations, universities and government agencies to protect and secure confidential documents and business records Managers and public officials are looking for technology and information governance solutions to "information leakage" in an understandable, concise format. Safeguarding Critical E-Documents provides a road map for corporations, governments, financial services firms, hospitals, law firms, universities and other organizations to safeguard their internal electronic documents and private communications.Provides practical, step-by-step guidance o

  16. Medical confidentiality in the late nineteenth and early twentieth centuries: an Anglo-German comparison1

    OpenAIRE

    2010-01-01

    Professional secrecy of doctors became an issue of considerable medico-legal and political debate in the late nineteenth and early twentieth centuries in both Germany and England, although the legal preconditions for this debate were quite different in the two countries. While in Germany medical confidentiality was a legal obligation and granted in court, no such statutory recognition of doctors’ professional secrecy existed in England. This paper is a comparative analysis of medical secrecy ...

  17. Using Social Networking Sites for Communicable Disease Control: Innovative Contact Tracing or Breach of Confidentiality?

    OpenAIRE

    Mandeville, KL; Harris, M; Thomas, HL; Chow, Y; Seng, C.

    2013-01-01

    Social media applications such as Twitter, YouTube and Facebook have attained huge popularity, with more than three billion people and organizations predicted to have a social networking account by 2015. Social media offers a rapid avenue of communication with the public and has potential benefits for communicable disease control and surveillance. However, its application in everyday public health practice raises a number of important issues around confidentiality and autonomy. We report here...

  18. Security and confidentiality approach for the Clinical E-Science Framework (CLEF)

    OpenAIRE

    Kalra, D.; Singleton, P; Ingram, D.; Milan, J.; Mackay, J.; Detmer, D.; Rector, A.

    2005-01-01

    CLEF is an MRC sponsored project in the E-Science programme that aims to establish policies and infrastructure for the next generation of integrated clinical and bioscience research. One of the major goals of the project is to provide a pseudonymised repository of histories of cancer patients that can be accessed by researchers. Robust mechanisms and policies are needed to ensure that patient privacy and confidentiality are preserved while delivering a repository of such med...

  19. Spatial confidentiality and GIS: re-engineering mortality locations from published maps about Hurricane Katrina

    Directory of Open Access Journals (Sweden)

    Leitner Michael

    2006-10-01

    Full Text Available Abstract Background Geographic Information Systems (GIS can provide valuable insight into patterns of human activity. Online spatial display applications, such as Google Earth, can democratise this information by disseminating it to the general public. Although this is a generally positive advance for society, there is a legitimate concern involving the disclosure of confidential information through spatial display. Although guidelines exist for aggregated data, little has been written concerning the display of point level information. The concern is that a map containing points representing cases of cancer or an infectious disease, could be re-engineered back to identify an actual residence. This risk is investigated using point mortality locations from Hurricane Katrina re-engineered from a map published in the Baton Rouge Advocate newspaper, and a field team validating these residences using search and rescue building markings. Results We show that the residence of an individual, visualized as a generalized point covering approximately one and half city blocks on a map, can be re-engineered back to identify the actual house location, or at least a close neighbour, even if the map contains little spatial reference information. The degree of re-engineering success is also shown to depend on the urban characteristic of the neighborhood. Conclusion The results in this paper suggest a need to re-evaluate current guidelines for the display of point (address level data. Examples of other point maps displaying health data extracted from the academic literature are presented where a similar re-engineering approach might cause concern with respect to violating confidentiality. More research is also needed into the role urban structure plays in the accuracy of re-engineering. We suggest that health and spatial scientists should be proactive and suggest a series of point level spatial confidentiality guidelines before governmental decisions are made

  20. IT architecture-based confidentiality risk assessment in networks of organizations

    OpenAIRE

    Morali, Ayse

    2011-01-01

    Today almost every organization benefits from business opportunities created by digitalization. Digitalization allows, among others, to develop software products on shared platforms, to remotely access and alter patient records or remotely control power generators. This change in the technical environment has triggered changes in the legal environment, and introduced new compliance requirements. Consequently, protecting the confidentiality of digital information assets has become a major conc...

  1. Confidentiality and data sharing: vulnerabilities of the Mexican Genomics Sovereignty Act

    OpenAIRE

    Rojas-Martínez, Augusto

    2015-01-01

    A law known as “Genomic Sovereignty Act”, instituted in 2011, regulates research on the human genome in Mexico. This law establishes Government regulations for the exportation of DNA samples from Mexican nationals for population genetics studies. The Genomic Sovereignty Act protects fundamental human values, as confidentiality and non-discrimination based on personal genetic information. It also supports the development of the genome-based medical biotechnology and the bio-economy. Current la...

  2. 77 FR 42733 - Novartis AG; Analysis of Agreement Containing Consent Orders to Aid Public Comment

    Science.gov (United States)

    2012-07-20

    ... comment confidential treatment, you must file it in paper form, with a request for confidential treatment... confidential treatment that accompanies the comment must include the factual and legal basis for the request... papules and pustules of rosacea, a condition that causes chronic redness of facial skin....

  3. Avaliação de técnica cirúrgica parendodôntica: apicectomia em 90º, retrocavitação com ultra-som e retrobturação com MTA = Evaluation of endodontics surgical technique: apical resection with a 90 o angle, ultrasonic preparation of root-end cavities and trioxide aggregate (MTA filling

    Directory of Open Access Journals (Sweden)

    Pozza, Daniel Humberto

    2005-01-01

    Full Text Available Técnicas consagradas como apicectomia por broca em 45 graus, retrocavidade com broca de aço esférica e retrobturação com amálgama tem sido gradativamente substituídas por novas seqüências de procedimentos que aumentam os benefícios cirúrgico, melhorando o prognóstico clínico. A metodologia utilizada neste artigo encontra-se ambasada em revisão bibliográfica e aplicação laboratorial. Isto possibilitou identificar inúmeras vantagens no uso da apicectomia em 90 graus, retrocavidade com ultra-som e retrobturação com Odontology Mineral Trioxide Aggregate (MTA, nas cirurgias

  4. Embedding patients confidential data in ECG signal for healthcare information systems.

    Science.gov (United States)

    Ibaida, Ayman; Khalil, Ibrahim; Al-Shammary, Dhiah

    2010-01-01

    In Wireless tele-cardiology applications, ECG signal is widely used to monitor cardiac activities of patients. Accordingly, in most e-health applications, ECG signals need to be combined with patient confidential information. Data hiding and watermarking techniques can play a crucial role in ECG wireless tele-monitoring systems by combining the confidential information with the ECG signal since digital ECG data is huge enough to act as host to carry tiny amount of additional secret data. In this paper, a new steganography technique is proposed that helps embed confidential information of patients into specific locations (called special range numbers) of digital ECG host signal that will cause minimal distortion to ECG, and at the same time, any secret information embedded is completely extractable. We show that there are 2.1475 × 10(9) possible special range numbers making it extremely difficult for intruders to identify locations of secret bits. Experiments show that percentage residual difference (PRD) of watermarked ECGs can be as low as 0.0247% and 0.0678% for normal and abnormal ECG segments (taken from MIT-BIH Arrhythmia database) respectively.

  5. Confidentiality and data sharing: vulnerabilities of the Mexican Genomics Sovereignty Act.

    Science.gov (United States)

    Rojas-Martínez, Augusto

    2015-07-01

    A law known as "Genomic Sovereignty Act", instituted in 2011, regulates research on the human genome in Mexico. This law establishes Government regulations for the exportation of DNA samples from Mexican nationals for population genetics studies. The Genomic Sovereignty Act protects fundamental human values, as confidentiality and non-discrimination based on personal genetic information. It also supports the development of the genome-based medical biotechnology and the bio-economy. Current laws for the protection of the genomic confidentiality, however, are inexplicit and insufficient, and the legal and technological instruments are primitive and insufficient to safeguard this bioethical principle. In addition, this law may undermine efforts of the national and international scientific communities to cooperate with big-data analysis for the development of the genome-based biomedical sciences. The argument of this article is that deficiencies in the protection of the confidentiality of genomic information and limitations in data sharing severely weaken the objectives and scope of the Genomic Sovereignty Act. In addition, the Act may compromise the national biomedical development and the international cooperation for research and development in the field of human genomics. PMID:25990230

  6. MTA、GIC、银汞合金修复髓腔穿孔的临床效果比较研究%Comparison of the clinical effects of GIC 、amalgam and MTA on pulp chamber perforation repair

    Institute of Scientific and Technical Information of China (English)

    董佳增; 何建明; 周峰; 王辉

    2012-01-01

    Objective The purpose of this study was to investigate the clinical effects of GIC., amalgam and MTA in pulp chamber perforation repair. Methods Cases were divided into three groups randomly. In total,sixty-two cases were involved in our experiment, with MTA group 21 cases, GIC group 22 and amalgam group 19. All of the cases received the pulp chamber perforation repair with one of the three materials and perfect root canal therapy,and after a 3 months' follow-up, the clinical effects were evaluated. Results The type of the materials used had significant effects on canal perforation repair. MTA was more effective than GIC and Amalgam statistically (P < 0. 05). Conclusions MTA is a more suitable material than GIC and amalgam in pulp chamber perforation repair.%目的 比较无机三氧化聚合物(MTA)、玻璃离子水门汀(GIC)和银汞合金3种修复材料治疗医源性髓腔穿孔的临床效果.方法 所有临床病例随机分组,共有62例髓腔穿孔病例纳入分析,其中MTA组21例,GIC组22例,银汞合金组19例.分别进行穿孔修补并进行彻底的根管治疗和充填,术后3个月,根据临床症状评价短期疗效.结果 MTA组有效率为90.48%(19/21),GIC组有效率为59.09%(13/22),银汞合金组有效率为52.63% (10/19).MTA组与其他2组存在统计学差异,MTA组有效率高于GIC组和银汞合金组(P<0.05).结论 MTA具有良好生物相容性,能够促进硬组织的形成,封闭性能好,在髓腔穿孔修补中的临床效果优于GIC和银汞合金.

  7. Attitudes towards informed consent, confidentiality, and substitute treatment decisions in southern African medical students: a case study from Zimbabwe.

    Science.gov (United States)

    Hipshman, L

    1999-08-01

    This study explored the attitudes of biomedical science students (medical students) in a non-Western setting towards three medical ethics concepts that are based on fundamental Western culture ethical principles. A dichotomous (agree/disagree) response questionnaire was constructed using Western ethnocentric culture (WEC) based perspectives of informed consent, confidentiality, and substitute decision-making. Hypothesized WEC-Biased responses were assigned to the questionnaire's questions or propositions. A number of useful responses (169) were obtained from a large, cross-sectional, convenience sample of the MBChB students at the University of Zimbabwe Medical School. Statistical analysis described the differences in response patterns between the student's responses compared to the hypothesized WEC-Biased response. The effect of the nine independent variables on selected dependent variables (responses to certain questionnaire questions) was analyzed by stepwise logistic regression. Students concurred with the hypothesized WEC-Biased responses for two-thirds of the questionnaire items. This agreement included support for the role of legal advocacy in the substitute decision-making process. The students disagreed with the hypothesized WEC-Biased responses in several important medical ethics aspects. Most notably, the students indicated that persons with mental dysfunctions, as a class, were properly considered incompetent to make treatment decisions. None of the studied independent variables was often associated with students' responses, but training year was more frequently implicated than either ethnicity or gender. In order to develop internationally and culturally relevant medical ethics standards, non-Western perspectives ought to be acknowledged and incorporated. Two main areas for further efforts include: curriculum development in ethics reasoning and related clinical (medico-legal) decision-making processes that would be relevant to medical students from

  8. MTA ve zirkonyum pinlerle yapılan retrograd dolguların apikal sızdırmazlıklarının in vitro olarak değerlendirilmesi

    Directory of Open Access Journals (Sweden)

    Hamdi Oğuz Yoldaş

    2012-07-01

    Full Text Available

    Objectives: The purpose of this in-vitro study was to evaluate the apical sealing in root apex retrofilled with mineral trioxide aggregate (MTA and zirconium pins by means of fluid filtration test.

    Materials and Methods: In this study, 24 human single-rooted teeth were used. The root canals were instrumented to 50 file apical enlargement. All teeth except positive control group filled with gutta percha and AH plus root filling material. Two teeth in the positive control group filled only with gutta percha. The root apex of two teeth in the negative control group was covered with two layers of nail polish. The apical 3mm of the samples were cut by using diamond saw perpendicular to axis of teeth. The retrograde cavities were prepared by using ultrasonic tips in 5mm depth. The specimens were randomly divided into two groups of 10 samples. In MTA group, retrograde cavities were filled with MTA. In zirconium group, zirconium pins which were prepared at the same size of ultrasonic tips were placed into the retrograde cavities with digit pressure after the cavities were retrofilled with MTA. The teeth were prepared for microleakage test with fluid-filtration method. Measurements of fluid movement were made at 2-min intervals for 8 min and means of these measurements were recorded.

    Results: There was not statistically significant difference between two groups in terms of apical microleakage (p=0.91.

    Conclusions: In this study, it was planned to provide better apical seal by enforcing MTA with zirconium pins. It is suggested to conduct further studies to evaluate the zirconium pins used with different materials which simplifies the retrograde filling procedure.   

    Keywords: MTA, zirconium pin, retrograde filling, apical resection, fluid filtration method.

     

    ÖZET

  9. Clinical application comparsion of repairing the perforation of pulp floor with MTA,glass ionomer cement and amalgam%三种髓室底穿孔修补材料的临床对比研究

    Institute of Scientific and Technical Information of China (English)

    李歆; 王津惠

    2016-01-01

    Objective:To observe clinical effects of MTA,glass ionomer cement and amalgam on repai-ring the perforation of pulp floors.Method:Severty-eight cases of teeth with the perforation of pulp floors were enrolled and divided into three groups.They underwent root canal therapy.The pulp floors were repaired with MTA,glass ionomer cement and amalgam.To observe clinical and X-ray effects after one-year.Results:The suc-cess rate with MTA was 92.3%.The success rate with glass ionomer cement was 69.2%.The success rate with amalgam was 53 .8%.The success rate with MTA was apparently higher than those with glass ionomer cement and amalgam(P<0.05).The success rate with MTA was related with the reason of the perforation of pulp floor.The success rate with iatrogenic perforation was apparently higher than those with carious perforation( P<0.05). Conclusion:MTA has good compatibility,biological activity and satisfactory clinical effects.MTA was applied on repairing the perforation of pulp floors,and raises the survival rate of teeth.%目的:评价矿物三氧化物凝聚体( MTA)、玻璃离子水门汀和银汞合金在修补髓室底穿孔的临床疗效。方法:将78颗髓室底穿孔的患牙,进行根管治疗后随机分为3组,分别应用MTA、玻璃离子水门汀和银汞合金修补髓室底,1年后复查观察其临床疗效。结果:MTA治疗组成功率92.3%,玻璃离子水门汀治疗组成功率69.2%,银汞合金治疗组成功率53.8%。经统计学处理,MTA组与其余两组之间差异有统计学意义(P<0.05)。 MTA组的成功率高于玻璃离子组和银汞合金组。 MTA组成功率与穿孔原因有关,医源性穿孔治疗成功率高于龋源性穿孔,两者差异有统计学意义(P<0.05)。结论:MTA具有良好的生物活性和组织相容性,临床疗效良好,应用于修补髓室底穿孔可以提高患牙的保留率。

  10. 22 CFR 124.1 - Manufacturing license agreements and technical assistance agreements.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Manufacturing license agreements and technical... ARMS REGULATIONS AGREEMENTS, OFF-SHORE PROCUREMENT AND OTHER DEFENSE SERVICES § 124.1 Manufacturing... manufacturing license agreements, technical assistance agreements, distribution agreements, or...

  11. 78 FR 68444 - Notice of Agreements Filed

    Science.gov (United States)

    2013-11-14

    ... . Agreement No.: 010071-040. Title: Cruise Lines International Association Agreement. Parties: AMA Waterways.... By Order of the Federal Maritime Commission. Karen V. Gregory, Secretary. BILLING CODE 6730-01-P...

  12. 75 FR 31438 - Notice of Agreements Filed

    Science.gov (United States)

    2010-06-03

    ... Lines Joint Service Agreement. Filing Party: Tara L. Leiter, Esq.; Blank Rome, LLP; Watergate; 600 New... Service Agreement. Filing Party: Tara L. Leiter, Esq.; Blank Rome, LLP; Watergate; 600 New...

  13. 75 FR 74732 - Notice of Agreements Filed

    Science.gov (United States)

    2010-12-01

    ... after November 24, 2010. Agreement No.: 012111. Title: Hainan PO Shipping Co., Ltd. and TS Lines Ltd. Slot Charter Agreement. Parties: Hainan PO Shipping Co., Ltd. and T.S. Lines Ltd. Filing Party: Neal...

  14. The administrative review of concession agreements

    OpenAIRE

    Fatmira Hajdari

    2014-01-01

    Concession agreements represent the most utilized and preferred legal option in the exercise of public functions by private entities. Before entering into a concessionary agreement, there is a special procedure that takes place, and that is one of the distinctive characteristics of this type of contract vis-a-vis other civil contracts. This procedure is provided for under the Public procurement law. Consequently, all agreements stemming from the exercise of the concession agreement are regula...

  15. Legal risks at foreign business agreements

    OpenAIRE

    Leppäkoski, Mika

    2015-01-01

    Abstract: The primary objective of this study is to understand the framework how to build an inter-national business agreements, complexity of agreements in the multinational trade and its' regulation, laws and finally evaluate and discuss the potential legal risks which may occur in these international agreements. Objectives: Objectives for this study has been that find an answer to a question: "How to make an international business agreements according to international and loca...

  16. TRIPs Agreement, Important Multilateral WTO Treaty

    Directory of Open Access Journals (Sweden)

    Oana-Maria Florescu

    2006-08-01

    Full Text Available This article aims at presenting the content and the frame of the TRIPs. Agreement. It starts by introducing the reader to the terms that defined the world economical climate by the time of the Agreement negociation. Also, it explains the need of having an Agreement on intellectual property rights with impact on the business world. Moreover, the article reviews the main provisions of the Agreement and the most important intellectual property rights.

  17. The Pros and Cons of Petroleum Agreements.

    Science.gov (United States)

    Lipton, Charles J.

    1980-01-01

    A mineral agreements expert discusses the options open to tribes, from the most standard lease form to arrangements as yet untried by Indian Nations. Discussion covers 18 basic provisions for inclusion in agreements, tax considerations, and basic forms of petroleum agreements (leases, joint ventures, production sharing, and service contracts).…

  18. 46 CFR 356.41 - Management agreements.

    Science.gov (United States)

    2010-10-01

    ... which the management company provides marketing services, consulting services or other services that are... 46 Shipping 8 2010-10-01 2010-10-01 false Management agreements. 356.41 Section 356.41 Shipping..., Management Agreements and Exclusive or Long-Term Contracts § 356.41 Management agreements. (a) An owner...

  19. 7 CFR 966.111 - Marketing Agreement.

    Science.gov (United States)

    2010-01-01

    ... and Regulations Definitions § 966.111 Marketing Agreement. Marketing Agreement means Marketing... 7 Agriculture 8 2010-01-01 2010-01-01 false Marketing Agreement. 966.111 Section 966.111 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE...

  20. 7 CFR 946.101 - Marketing agreement.

    Science.gov (United States)

    2010-01-01

    ... WASHINGTON Rules and Regulations Definitions § 946.101 Marketing agreement. Marketing agreement means... 7 Agriculture 8 2010-01-01 2010-01-01 false Marketing agreement. 946.101 Section 946.101 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE...

  1. 7 CFR 917.101 - Marketing agreement.

    Science.gov (United States)

    2010-01-01

    ... CALIFORNIA Rules and Regulations Definitions § 917.101 Marketing agreement. Marketing agreement means... 7 Agriculture 8 2010-01-01 2010-01-01 false Marketing agreement. 917.101 Section 917.101 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE...

  2. 50 CFR 81.3 - Cooperative Agreement.

    Science.gov (United States)

    2010-10-01

    ...) the recovery potential of the species; (3) the taxonomic status, e.g., giving full species priority... Project Agreement can be approved for endangered or threatened species projects. A cooperative agreement... SPECIES OF FISH, WILDLIFE, AND PLANTS-COOPERATION WITH THE STATES § 81.3 Cooperative Agreement....

  3. 49 CFR 1325.2 - Credit agreements.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false Credit agreements. 1325.2 Section 1325.2... OF TRANSPORTATION (CONTINUED) CARRIER RATES AND SERVICE TERMS EXTENSION OF CREDIT TO CANDIDATES FOR FEDERAL OFFICE OR THEIR REPRESENTATIVES § 1325.2 Credit agreements. (a) All agreements to extend credit...

  4. 48 CFR 1819.7209 - Credit agreements.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Credit agreements. 1819... ADMINISTRATION SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS NASA Mentor-Protégé Program 1819.7209 Credit agreements. (a) The credit permits the mentor to include the cost it expends on a mentor-protégé agreement...

  5. 47 CFR 27.602 - Lease agreements.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Lease agreements. 27.602 Section 27.602... Lease agreements. Guard Band licensees may enter into spectrum leasing arrangements under part 1... following conditions: (a) The spectrum lease agreement between the licensee and the spectrum lessee...

  6. 7 CFR 900.109 - Mediation agreement.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Mediation agreement. 900.109 Section 900.109 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing... Mediation agreement. An agreement arrived at by mediation shall not become effective until approved by...

  7. 77 FR 58592 - Modified Norway Post Agreement

    Science.gov (United States)

    2012-09-21

    ... Modified Norway Post Agreement AGENCY: Postal Regulatory Commission. ACTION: Notice. SUMMARY: The Commission is noticing a recently-filed Postal Service request to include a modified Norway Post Agreement... existing bilateral agreement for inbound competitive services with Posten Norge AS (Modified Norway...

  8. 77 FR 71001 - Notice of Agreements Filed

    Science.gov (United States)

    2012-11-28

    .... Agreement No.: 012188-000. Title: Matson/Kyowa Space Charter Agreement. Parties: Matson Navigation Company, Inc. (``Matson'') and Kyowa Shipping Co., Ltd. (``Kyowa''). Filing Party: Sloan White; Matson; 555...: Matson/Kyowa Space Charter Agreement for Guam and Pacific Islands. Parties: Matson Navigation...

  9. Summary of 1Mt/a Hydrocracking Unit Start-up%100万t/a加氢裂化装置开工总结

    Institute of Scientific and Technical Information of China (English)

    姜辉; 代旭; 关宝安; 赵华光

    2014-01-01

    中国石油辽阳石化100万t/a加氢裂化装置于2010年10月底顺利完成装置中交,2011年4月24日装置出合格产品,实现一次开车成功。介绍装置概况、工艺特点和主要产品,阐述自催化剂装填到开工进油的主要开工过程,包括催化剂装填、催化剂硫化、低氮油开工等一系列开工步骤,并对主要产品性质及反应系统的操作参数进行了分析,最后初步评价了装置初期生产情况。%The 1 Mt/a hydrocracking unit in PetroChina Liaoyang Petrochemical Company realized successful start-up at the end of October 2010, and the unit produced qualified products on 24 April 2011.In this paper, the device profile, process characteristics and main products were introduced. Then main start-up process from catalyst loading to switching gas oil was discussed, such as catalyst loading, catalyst vulcanizing, low nitrogen oil inletting, and so on. And the main products properties and the operation parameters of reaction system were analyzed. Finally the production situation of the unit during the initial stage of commissioning was evaluated.

  10. Mineral trioxide aggregate as root canal filing material: comparative study of physical properties = MTA como cimento endodôntico: estudo comparativo de propriedades físicas

    Directory of Open Access Journals (Sweden)

    Silva, Wander José da

    2010-01-01

    Full Text Available Objetivo: Este estudo avaliou as propriedades físicas de dois cimentos MTA disponíveis comercialmente. Metodologia: A resistência a compressão (CS dos materiais avaliados foi realizada após 21 horas e 14 dias de imersão em água. A avaliação da radiopacidade (RD dos materiais foi mensurada em função de espessura de alumínio. Com relação à propriedade de tempo de presa (ST, tanto os tempos de presa inicial e final foram mensurados. A solubilidade foi calculada em função da percentagem de massa perdida após armazenamento em água. Os valores de pH foram mensurados em três diferentes tempos (inicial, 1 e 24 horas de armazenamento em água. Todos os testes foram realizados de acordo com a norma ISO 6876-2:2001. Resultados: Ambos os materiais apresentaram valores de CS e pH em acordo com os valores da norma ISO. Os dois cimentos apresentaram RD superiores ao limite de 3 mm de alumínio. Ambos os materiais mostraram resultados de SB inferiores ao limite de 3%. ST e pH também estão de acordo com a norma ISO 6876-2:2001. Adicionalmente foram avaliadas as superfícies dos materiais por MEV, e ambos apresentaram fases estruturais amorfas e cristalinas. Conclusão: Concluiu-se que ambos os materiais avaliados estão de acordo com as normas ISO, permitindo o seu uso como material de preenchimento de canais radiculares

  11. China-ASEAN investment agreement negotiations

    Institute of Scientific and Technical Information of China (English)

    CHEN Huiping

    2006-01-01

    China and the ASEAN are negotiating to establish a free trade area and an investment agreement is an integral part of it.The ongoing investment agreement negotiations have achieved some basic consensus as to specific contents of the agreement.However,due to the procedural obstacles and substantive controversies,the negotiations have become stagnant.In order to reach a final and successful conclusion of the investment agreement,the procedural obstacles should be' overcome and the substantive controversies be settled since the agreement has economic and political implications for both China and the ASEAN.

  12. Clinical observation of MTA applied to the preventive pulp capping of premolar abnormal central cusp%MTA在前磨牙畸形中央尖预防性盖髓术中的疗效观察

    Institute of Scientific and Technical Information of China (English)

    赵献平; 徐芳

    2015-01-01

    Objective To observe the clinical effect of MTA applied to preventive pulp capping of prenmolar abnormal central cusp.Methods 78 unifected premolar steep abnormal central cusp teeth collected from 66 case were treated in our department of our hospital during June in 2011 to June in 2013.They were randomly divided into two groups .MTA was used in preventive pulp capping in the experimental group while Dycal was applied in the control group.At each (3、6、12months and two group),the teeth were assessed dimically to evaluate clinical effect.Results After three months ,the treatment success rate of the MTA group was 97% and the treatment success rate of the Dycal group was 95%.There was no statistically significant difference at the shot term clinical effect between the two groups(P>0.05).After two years ,the treatment success rate of the MTA group was 95% and the treatment success rate of the Dycal group was 72% ,The long term clinical effect of the treatment with MTA was better than Dycal in preventive pulp capping(P<0.05). Conclusion MTA applied to the preventive pulp capping of central cusp deformity is a better way.%目的:观察MTA在前磨牙畸形中央尖预防性盖髓术中的疗效。方法选择2011年7月~2013年7月在我科就诊的未感染前磨牙高陡畸形中央尖患者66例牙齿78颗,随机分为两组,分别用MTA和氢氧化钙进行预防性盖髓,术后3、6、12个月及2年后复查,观察疗效,评价疗效。结果术后3个月复查,MTA组成功率为97%,Dycal组成功率为95%,比较两组近期疗效,差异无统计学意义(P>0.05),术后2年复查, MTA组成功率为95%,Dycal组为72%,比较两组之间远期疗效,MTA组明显高于Dycal组,差异有统计学意义(P<0.05)。结论应用MTA行前磨牙畸形中央尖预防性盖髓术是一种较好的治疗方法。

  13. Confidentiality & Authentication Mechanism for Biometric Information Transmitted over Low Bandwidth & Unreliable channel

    Directory of Open Access Journals (Sweden)

    Raju Singh

    2011-03-01

    Full Text Available The security of bio-metric information – finger print, retina mapping, DNA mapping and some otherchemical and biological modified genes related information - transfer through low bandwidth andunreliable or covert channel is challenging task. Therefore, Security of biometric information is essentialrequirement in this fast developing communication world. Thus, in this paper, we propose efficient andeffective mechanism for confidentiality and authentication for biometric information transmitted by usingarithmetic encoding representation over low bandwidth and unreliable channel. It enhances the speed ofencryption, decryption and authentication process. It uses arithmetic encoding scheme and public keycryptography e.g. modified version of RSA algorithm called RSA-2 algorithm.

  14. Cyber-Security Challenges with SMEs in Developing Economies: Issues of Confidentiality, Integrity & Availability (CIA)

    DEFF Research Database (Denmark)

    Yeboah-Boateng, Ezer Osei

    The essence of this study is first to highlight the cyber-security challenges confronting SMEs in developing economies, and to model a framework for safeguarding their assets, to ensure continuous optimal business operations, and to participate and compete securely in the ubiquitous cyber-market......, to develop customer-centric strategies. While connectivity is indispensable for achieving business success, being connected also implies being exposed to a myriad of cyber-security challenges, such as vulnerabilities of confidentiality, integrity and availability (CIA). As vulnerabilities are exploited...

  15. Confidentiality & Authentication Mechanism for Biometric Information Transmitted over Low Bandwidth & Unreliable channel

    CERN Document Server

    Singh, Raju

    2011-01-01

    The security of bio-metric information - finger print, retina mapping, DNA mapping and some other chemical and biological modified genes related information - transfer through low bandwidth and unreliable or covert channel is challenging task. Therefore, Security of biometric information is essential requirement in this fast developing communication world. Thus, in this paper, we propose efficient and effective mechanism for confidentiality and authentication for biometric information transmitted by using arithmetic encoding representation over low bandwidth and unreliable channel. It enhances the speed of encryption, decryption and authentication process. It uses arithmetic encoding scheme and public key cryptography e.g. modified version of RSA algorithm called RSA-2 algorithm.

  16. Substandard emergency obstetric care - a confidential enquiry into maternal deaths at a regional hospital in Tanzania

    DEFF Research Database (Denmark)

    Sorensen, Bjarke Lund; Elsass, Peter; Nielsen, Brigitte Bruun;

    2010-01-01

    OBJECTIVE: (i) To identify clinical causes of maternal deaths at a regional hospital in Tanzania and through confidential enquiry (CE) assess major substandard care and make a comparison to the findings of the internal maternal deaths audits (MDAs); (ii) to describe hospital staff reflections...... in 46 (74%) of the 62 cases reviewed. During the same time period MDA identified substandard care in 18 cases. Staff perceived poor organization of work and lack of training as important causes for substandard care. Local MDA was considered useful although time-consuming and sometimes threatening...

  17. MTA和Super-Bond C&B树脂修补后磨牙纵裂隙的临床效果%Outcomes of repairing vertical fractured molars' fissure with MTA and Super-Bond C&B resin cement

    Institute of Scientific and Technical Information of China (English)

    刘思逸; 赵晓花; 李琴; 曹寅

    2012-01-01

    Objective To investigate the outcomes of repairing vertical fractured molars fissure with mineral trioxide aggregate(MTA) and Super-Bond C&-B resin cement Methods A total of 108 extracted vertical fractured molars was equally randomized into 3 groups of A( the fissures were filled with MTA) ,B(the fissures were filled with Super-Bond C&-B) and C(the fissures were filled with zinc phosphate). Results The success rate was 100% in 1 to 3 months after reparing in three groups. In 24 months after reparing, the success rate remained to be 100% in groups of A and B, but which was much lower in group C (58. 3% for maxillary first molars mandibular column,50. 0% for first molars maxillary column,28. 6% for second molars mandibular column, 28. 6% for second molars column) (P<0. 05). Conclusion The efficacy of filling the fissures of vertical fractured molars with MTA and Super-Bond C&-B resin cement is better than zinc phosphate.%目的 探讨用三氧化物聚合体(MTA)和Super-Bond C&B树脂修补纵裂后磨牙裂缝的临床效果.方法 108颗纵裂牙随机均分为三组,分别用MTA充填(A组)、Super-Bond C&B树脂水门汀(B组)或直接用磷酸锌充填(C组)修补裂缝.结果 治疗后1-3个月,三组的成功率均达到100%.治疗后24个月时,A组和B组的成功率均为100%;但C组的成功率分别为上颌第一后磨牙58.3%、下颌第一后磨牙50.0%、上颌第二后磨牙28.6%、下颌第二后磨牙28.6%.A组和B组的成功率高于C组(P<0.05).结论 后磨牙纵裂用MTA和Super-Bond C&B树脂修补纵裂疗效明显优于用磷酸锌直接充填.

  18. 矿物三氧化物凝聚体用于犬牙直接盖髓的实验研究%Experimental study of MTA applied to direct pulp capping in dog

    Institute of Scientific and Technical Information of China (English)

    郑莹; 彭彬

    2004-01-01

    目的:观察矿物三氧化物凝聚体(MTA)直接盖髓后牙髓炎症反应和修复性牙本质的形成.方法:人工机械暴露犬牙髓用MTA或氢氧化钙直接盖髓.结果:实验2周和8周MTA诱导修复性牙本质形成的效果优于氢氧化钙炎症反应较轻.结论:MTA是一种效果较好的盖髓剂.

  19. 22 CFR 124.6 - Termination of manufacturing license agreements and technical assistance agreements.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Termination of manufacturing license agreements... Termination of manufacturing license agreements and technical assistance agreements. The U.S. party to a manufacturing license or a technical assistance agreement must inform the Directorate of Defense Trade...

  20. [When the violation of medical confidentiality is imposed by law: Another side effect of Law N° 20.584].

    Science.gov (United States)

    Vega, Jorge; Quintana, María Soledad

    2016-02-01

    A law of rights and duties of patients was recently enacted in Chile (Law N° 20.584). When someone dies, the law allows his inheritors to have access to part or the totality of the medical record. Therefore, they may become acquainted of information that the patient gave in confidence to his physician, protected by "the medical confidentiality". The original bill included the possibility that a doctor could deny information that could cause harm to the former holder of the clinical record, but this precaution was banned by congressmen, seriously damaging the institution of "medical confidentiality", a cornerstone of the medical-patient relationship since the beginning of medicine. PMID:27092681