| 1. |
- Fortner, Renee T., et al.
(författare)
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Ovarian Cancer Risk Factor Associations by Primary Anatomic Site : The Ovarian Cancer Cohort Consortium
- 2020
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Ingår i: Cancer Epidemiology, Biomarkers and Prevention. - : American Association for Cancer Research (AACR). - 1055-9965 .- 1538-7755. ; 29:10, s. 2010-2018
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Tidskriftsartikel (refereegranskat)abstract
- Background: Epithelial ovarian, fallopian tube, and primary peritoneal cancers have shared developmental pathways. Few studies have prospectively examined heterogeneity in risk factor associations across these three anatomic sites.Methods: We identified 3,738 ovarian, 337 peritoneal, and 176 fallopian tube incident cancer cases in 891,731 women from 15 prospective cohorts in the Ovarian Cancer Cohort Consortium. Associations between 18 putative risk factors and risk of ovarian, peritoneal, and fallopian tube cancer, overall and for serous and high-grade serous tumors, were evaluated using competing risks Cox proportional hazards regression. Heterogeneity was assessed by likelihood ratio tests.Results: Most associations did not vary by tumor site (P-het = 0.05). Associations between first pregnancy (P-het = 0.04), tubal ligation (P-het = 0.01), and early-adult (age 18-21 years) body mass index (BMI; P-het = 0.02) and risk differed between ovarian and peritoneal cancers. The association between early-adult BMI and risk further differed between peritoneal and fallopian tube cancer (P-het = 0.03). First pregnancy and tubal ligation were inversely associated with ovarian, but not peritoneal, cancer. Higher early-adult BMI was associated with higher risk of peritoneal, but not ovarian or fallopian tube, cancer. Patterns were generally similar when restricted to serous and high-grade serous cases.Conclusions: Ovarian, fallopian tube, and primary peritoneal cancers appear to have both shared and distinct etiologic pathways, although most risk factors appear to have similar associations by anatomic site.Impact: Further studies on the mechanisms underlying the differences in risk profiles may provide insights regarding the developmental origins of tumors arising in the peritoneal cavity and inform prevention efforts.
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| 2. |
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| 3. |
- Glahn, Esther, et al.
(författare)
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Processability in Scandinavian second language acquisition.
- 2001
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Ingår i: Studies in Second Language Acquisition. - 1470-1545. ; 23:3, s. 389-416
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Tidskriftsartikel (refereegranskat)abstract
- This paper reports on a test of the validity of Pienemann's (1998) Processability Theory (PT). This theory predicts that certain morphological and syntactic phenomena are acquired in a fixed sequence. Three phenomena were chosen for this study: attributive adjective morphology, predicative adjective morphology, and subordinate clause syntax (placement of negation). These phenomena are located at successive developmental stages in the hierarchy predicted by PT. We test whether they actually do appear in this predicted hierarchical order in the L2 of Danish, Norwegian, and Swedish learners. The three languages mentioned are very closely related and have the same adjective morphology and subordinate clause syntax. We can, therefore, treat them as one language for the purposes of this study. Three analyses have been carried out: The first follows Pienemann's theory and is concerned only with syntactic levels; the second is a semantic analysis of the acquisition of number versus that of gender; the third analysis studies the various kinds of mismatches between the inflection of the noun, the controller, and the adjective. The results are the following: The first test supports PT as it has been described by Pienemann. The second analysis shows that there is an acquisitional hierarchy such that number is acquired before gender (in adjectives), and the mismatch analysis raises questions about the fundamental assumptions of the theory.
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| 4. |
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| 5. |
- Håkansson, Gisela, et al.
(författare)
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Andraspråksforskningen i Sverige
- 1993
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Ingår i: Rapport fra det andre forskersymposiet om Nordens språk som andrespråk i Oslo den 19.-20. mars 1993. - 8291298017 ; , s. 1-19
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Konferensbidrag (refereegranskat)
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| 6. |
- Abdullah, Nazri, et al.
(författare)
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Blockchain based approach to enhance big data authentication in distributed environment
- 2017
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Ingår i: 2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN). - : IEEE Computer Society. - 9781509047499 ; , s. 887-892
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Konferensbidrag (refereegranskat)abstract
- Existing authentication protocols for Big Data system such as Apache Hadoop is based on Kerberos. In the Kerberos protocol, there are numerous security issues that have remained unsolved; replay attacks, DDoS and single point of failure are some examples. These indicate potential security vulnerabilities and Big Data risks in using Hadoop. This paper presents drawbacks of Kerberos implementations and identifies authentication requirements that can enhance the security of Big Data in distributed environments. The enhancement proposed is based on the rising technology of blockchain that overcomes shortcomings of Kerberos.
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| 7. |
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| 8. |
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| 9. |
- Apelkrans, Mats, 1939-, et al.
(författare)
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Applying Multi-Agent System Technique to Production Planning in Order to Automate Decisions
- 2009
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Ingår i: AGENT AND MULTI-AGENT SYSTEMS. - Berlin, Heidelberg : Springer Berlin/Heidelberg. ; , s. 193-202
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Konferensbidrag (refereegranskat)abstract
- Coordinate and deliver information is vital for the financial and operational success of a company. The information is used for understanding and evaluating performance of a manufacturing company and making decisions based on incoming information. Information about orders but also parts to be purchased, assembled for the final product to be delivered, can streamline the production line to provide good quality products in the right time and to right costs at highest profit. For profit, costs are Cut by reducing storage and searching for lowest price from established suppliers and providers on web as well as handling production planning automatically. To increase profit, we apply a multi-agent technique to production planning, which can automate business decision-making for the production line. The agents handle incoming orders, the production line, and search for information about the products at the intranet and the extranet. The outcome is decisions about the production line. The multi-agent solution becomes a complement to the production planning brought about by the company's enterprise resource planning system.
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| 10. |
- Apelkrans, Mats, et al.
(författare)
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Enterprise systems Configuration as an Information Logistics Process - A Case Study
- 2007
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Ingår i: Proceedings of 9th International Conference on Enterprise Information Systems. - : SciTePress. - 9789728865900 ; , s. 10-
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Konferensbidrag (refereegranskat)abstract
- In this paper, we suggest using rule-based descriptions of customer’s requirements for Enterprise Systems implementing Information Logistics. The rules are developed from the users’ requirements and inserted as schedules to the Enterprise System. The output, from testing these rules, is a list of modules and parameter setting to configure the system. By using rules, we can, at least partly, automate the configuration process for traverse the several modules and thousands parameters there are in an Enterprise System. From the list, we can select the modules and the parameters that meet the customer’s requirements. Then these selected modules and parameters are visually presented through a kind of Unified Modeling Language diagrams, to support the user investigation and then to configure the system either manually or automatically. Every attempt to match a customer’s requirement to the contents of the knowledge base within the Enterprise system can be thought of as an Information Logistics Process. The output from such a process must be examined by the user, which can give rise to a new call to the Information Logistics process. In other words the configuration work is done through a dialogue between the customer and the knowledge base of the Enterprise system.
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