| 1. |
- Aad, G, et al.
(author)
-
Dijet Resonance Search with Weak Supervision Using s =13 TeV pp Collisions in the ATLAS Detector
- 2020
-
In: Physical Review Letters. - : American Physical Society (APS). - 1079-7114 .- 0031-9007. ; 125:13
-
Journal article (peer-reviewed)abstract
- This Letter describes a search for narrowly resonant new physics using a machine-learning anomaly detection procedure that does not rely on signal simulations for developing the analysis selection. Weakly supervised learning is used to train classifiers directly on data to enhance potential signals. The targeted topology is dijet events and the features used for machine learning are the masses of the two jets. The resulting analysis is essentially a three-dimensional search A→BC, for mA∼O(TeV), mB,mC∼O(100 GeV) and B, C are reconstructed as large-radius jets, without paying a penalty associated with a large trials factor in the scan of the masses of the two jets. The full run 2 s=13 TeV pp collision dataset of 139 fb-1 recorded by the ATLAS detector at the Large Hadron Collider is used for the search. There is no significant evidence of a localized excess in the dijet invariant mass spectrum between 1.8 and 8.2 TeV. Cross-section limits for narrow-width A, B, and C particles vary with mA, mB, and mC. For example, when mA=3 TeV and mBâ200 GeV, a production cross section between 1 and 5 fb is excluded at 95% confidence level, depending on mC. For certain masses, these limits are up to 10 times more sensitive than those obtained by the inclusive dijet search. These results are complementary to the dedicated searches for the case that B and C are standard model bosons. © 2020 CERN.
|
|
| 2. |
|
|
| 3. |
- Özcan, Gülay, 1973-
(author)
-
Essays on Labor Market Disparities and Discrimination : Immigration, Education and Gender
- 2011
-
Doctoral thesis (other academic/artistic)abstract
- The thesis consists of four papers, summarized as follows. Do Host Country Educations Even Out the Playing Field? Immigrant-Native Labor Market Gaps in Sweden This study follows a cohort of students from Swedish compulsory school graduation in 1988 until 2002 to document differences in education, including grades and field of education, and labor market outcomes between immigrants and natives. Results indicate initial differences in youth labor market status and long term differences in employment rates, most notably for those with Non-European backgrounds. Acculturation Identity and Higher Education: Is There a Trade-off Between Ethnic Identity and Education? This paper examines the role of identification to home and host cultures on the pursuit of higher educations for individuals with immigrant backgrounds. Identity is defined according to a two-dimensional acculturation framework based on strength of identification to both ethnic background cultures and the majority culture. The results put into question the premise of oppositional identities. Is It How You Look or Speak That Matters? -An Experimental Study Exploring the Mechanisms of Ethnic Discrimination Using a laboratory experiment, we explore the following questions: Are beliefs about performance affected by if a candidate is perceived to have looks that are non-stereotypical for the dominant population? Do these beliefs change if the candidate has a native-like vs. accented speech? We find that candidates not perceived as stereotypically Swedish are considered to be worse performers. When candidates are presented by both looks and speech, we find negative beliefs for candidates that speak Swedish with a foreign-accent. Sector Differences in the Glass Ceiling in Sweden -Is Occupational Segregation the Explanation? This paper explores sector differences in how the gender wage gap varies across the wage distribution and examines the role of occupational segregation in explaining this variation for Sweden. Results indicate that the phenomenon known as the glass ceiling is stronger in the public sector than in the private sector. This difference is found to be due to occupational segregation.
|
|
| 4. |
- Aad, G., et al.
(author)
-
- 2011
-
swepub:Mat__t (peer-reviewed)
|
|
| 5. |
- Lind, Kenneth, 1966, et al.
(author)
-
On the Relationship between Functional Size and Software Code Size
- 2010
-
In: International Workshop on Emerging Trends in Software Metrics (WETSoM 2010), May 4, 2010, Cape Town, South Africa.. - New York, NY, USA : ACM. - 0270-5257. - 9781605589763 ; , s. 47-52
-
Conference paper (peer-reviewed)abstract
- SLOC (Source Lines-Of-Code) has been used extensively as a Code Size Measure, and as input to parametric software cost and effort estimation tools. SLOC is obtained by measuring FP (Function Points) on the requirements and multiplying by the SLOC/FP ratio from similar projects. This is done even though several studies show large variations in this ratio, due to weak correlation between FP and SLOC. However, in our previous experiments we have obtained strong correlation between CFP (COSMIC Function Points) and Bytes compiled code as Code Size Measure. The experiments were conducted in the automotive industry using software components developed by GM (General Motors). In this paper we explain the reasons behind the strong correlation. The main reasons are that we apply the COSMIC method on software components of similar type, with a 1-to-1 mapping to COSMIC. A strong correlation between the Functional Size Measure and the Code Size Measure is required to obtain accurate Code Size estimation results. To estimate the Code Size before the software is available, is important both for Cost/Effort estimation and design of electronic hardware.
|
|
| 6. |
|
|
| 7. |
|
|
| 8. |
- Adrian, Maria
(author)
-
Central venous catheterisation - clinical studies on mechanical complications in the ultrasound-guided era
- 2022
-
Doctoral thesis (other academic/artistic)abstract
- Central venous catheterisation is one of the most common invasive procedures performed on patients in secondary care. Unfortunately the catheterisation procedure is associated with mechanical complications that both can be life-threatening and may force postponement of life-saving treatments such as surgery and chemotherapy. The use of real-time ultrasound guidance increases success rates and reduces the numbers of mechanical complications - but major mechanical complications still occur. The general aim of this thesis was to explore various aspects of ultrasound-guided central venous catheterisation and associated mechanical complications in order to enable future quality improvements of the procedure.Papers I and II investigate the incidence of mechanical complications within 24 hours after central venous catheterisation and analyse possible associated risk factors. In total, 12 667 central venous catheter insertions in 8 586 patients were included. We found that in hospitals where real-time ultrasound guidance is standard of care for central venous access, the incidence of major mechanical complications was only 0.4%. We also identified patient BMI <20 kg/m2, male operator gender, limited operator experience and more than one skin puncture as independent risk factors for major mechanical complications. In addition, subclavian vein catheterisation was an independent risk factor for pneumothorax compared to internal jugular vein catheterisation. Paper III evaluates the use of a micro-convex probe and the right supraclavicular fossa ultrasound view for aiding guidewire positioning to avoid catheter misplacements in right infraclavicular subclavian vein catheterisation. We prospectively included 103 patients and showed that with the ultrasound method described, 14 of the 15 initially misplaced guidewires were detected and 12 of them were successfully adjusted to a correct position, which in turn helped avoid 12 catheter misplacements at the time of insertion. Paper IV estimates the minimal guidewire length required to avoid guidewire retraction, thereby maintaining a guidewire tip position in the lower segment of the superior vena cava throughout an ultrasound-guided infraclavicular catheter placement in the right subclavian vein. Based on vessel measurements in 100 patients, we concluded that the majority of the assessed 15–16 cm central venous catheter kits contain guidewires that are too short for right subclavian vein catheterisation, i.e., guidewire retraction is needed prior to catheter insertion. Paper V examines the effect of an implementation package on the documentation of central venous catheter insertions. We found that introduction of an updated central venous catheter insertion form, delegated information responsibility of the new local directions for central venous catheter placement, and follow-up of all registered insertion forms during a limited period of time reduced the porportion of missing data with 55%.The general conclusion of this thesis is that there are possibilities for further quality improvements of central venous catheterisation also in the ultrasound-guided era and that the combination of appropriate recording of central venous catheter insertions, possibilities to track patient outcomes, and clinical research contribute to advanced understanding and delivering of patient-safe healthcare.
|
|
| 9. |
- Mulligan, Vanessa, et al.
(author)
-
Prevalence, Macrolide Resistance, and Fluoroquinolone Resistance in Mycoplasma genitalium in Men Who Have Sex With Men Attending an Sexually Transmitted Disease Clinic in Dublin, Ireland in 2017-2018
- 2019
-
In: Sexually Transmitted Diseases. - : Lippincott Williams & Wilkins. - 0148-5717 .- 1537-4521. ; 46:4, s. E35-E37
-
Journal article (peer-reviewed)abstract
- This is the first prevalence study of Mycoplasma genitalium and antimicrobial resistance study in Ireland. In urine samples from men who have sex with men (n = 400) attending a sexually transmitted disease clinic in Dublin, the prevalence of M. genitalium was 3%(12 of 400 specimens; 95% confidence interval, 1.3-4.7%), and the prevalences of macrolide resistance (75%), fluoroquinolone resistance (33.3%), and multidrug resistance (33.3%) were very high.
|
|
| 10. |
- Juhlin, Oskar, et al.
(author)
-
Fashionable services for wearables
- 2017
-
In: interactions. - : Association for Computing Machinery (ACM). - 1072-5520 .- 1558-3449. ; 24:3, s. 88-88
-
Journal article (other academic/artistic)
|
|
