6,817,566 research outputs found
Automated Repair of Layout Cross Browser Issues Using Search-Based Techniques
A consistent cross-browser user experience is crucial for the success of a website. Layout Cross Browser Issues (XBIs) can severely undermine a website’s success by causing web pages to render incorrectly in certain browsers, thereby negatively impacting users’ impression of the quality and services that the web page delivers. Existing Cross Browser Testing (XBT) techniques can only detect XBIs in websites. Repairing them is, hitherto, a manual task that is labor intensive and requires significant expertise. Addressing this concern, our paper proposes a technique for automatically repairing layout XBIs in websites using guided search-based techniques. Our empirical evaluation showed that our approach was able to successfully fix 86% of layout XBIs reported for 15 different web pages studied, thereby improving their cross-browser consistency
Testing mixed-signal cores: a practical oscillation-based test in an analog macrocell
A formal set of design decisions can aid in using oscillation-based test (OBT) for analog subsystems in SoCs. The goal is to offer designers testing options that do not have significant area overhead, performance degradation, or test time. This work shows that OBT is a potential candidate for IP providers to use in combination with functional test techniques. We have shown how to modify the basic concept of OBT to come up with a practical method. Using our approach, designers can use OBT to pave the way for future developments in SoC testing, and it is simple to extend this idea to BIST.European Union 2635
Testing the securitization paradigm of the so-called Copenhagen school in the case study of europe migrant crisis in 2015
Migration is an international phenomenon and contentious concept. Although people have been moving by political, economic and cultural motivations since the beginning of the human history; particularly recently, migration fuels traditional fears over national and societal security. Because, migration, a normal or typical political issue can be altered to a security threat by repetitive and successful speech acts. This fact has often been referred to as ‘the securitization of migration’, which means the presentation of migration as a security threat. In this regard, the arrival of more than one million refugees to the EU in 2015 -Migrant (Refugee) Crisis- constitutes an important milestone. The starting point of this study is to depict “How the securitization process of the ‘Migrant Crisis’ was operated”. It will be in charge of defining not only the key-concepts, such as “securitization move” and “securitization”, but also of what are the success criteria are. According to this study, securitizing actors and their speech acts have opened the way for the success of securitization by providing the perfect ground for altering the question of Migrants into a survival issue. To analyze the characteristics and the implications of securitizing the migration issue within the EU, this article primarily engages with the theoretical approach developed by the so-called Copenhagen School, which outlines how issues become threats those need to be handled by extra-ordinary measures.La migración es un fenómeno internacional y un concepto polémico. Aunque las personas se han trasladado por motivos políticos, económicos o culturales a lo largo de los siglos; la migración alimenta en la actualidad antiguos temores sobre seguridad nacional y social. Dado que la migración, un problema político normal, puede transformarse en amenaza de seguridad por cómo se habla de él -actos de habla-.Este hecho se ha denominado a menudo como "la seguritización de la migración"; es decir, el considerar la migración como una amenaza existencial. En este sentido, la llegada de más de un millón de refugiados a la UE en 2015, la crisis de los inmigrantes (refugiados), constituye un hito importante. El punto de partida de este estudio es describir "Cómo se llevó a cabo el proceso de seguritización de la 'Crisis Migratoria'". Se tratará de definir no solo conceptos claves, como "seguritización" y "acto de habla", sino también cuáles son los criterios que contribuyen a construir con éxito dicha seguritización. Según el presente estudio, actores securitizadores y sus actos de habla han abierto el camino para su triunfo, al proporcionar el terreno perfecto para transformar la cuestión de los migrantes en una cuestión de supervivencia. Para analizar las características y las implicaciones de la seguritización de la cuestión migratoria dentro de la UE, este trabajo aborda principalmente el enfoque teórico desarrollado por la llamada Escuela de Copenhague, que describe cómo los problemas se convierten en amenazas que deben manejarse con medidas extraordinarias
Pavement testing by integrated geophysical methods: Feasibility, resolution and diagnostic potential
This work is focused on the assessment of the diagnostic potential of several geophysical methods when applied to the investigation of a rigid airport pavement. The potential and limit of each technique are evaluated as well as the added value deriving from their integration. Firstly, we reconstruct a high-resolution image of the pavement by a large electromagnetic and georadar screening. An advanced processing of georadar data, implemented through the picking of the arrival times of reflections for each profile, provides a quantitative estimation of the deviation between the design and the as-built thickness of layers. Additionally, electrical tomography has been applied to unequivocally identify the anomalous zones, where higher values of resistivity would be associated to porous zones that are prone to degradation and failure. The seismic tomographic survey had the additional purpose to recover the mechanical properties of the pavement in terms of both P- and S-waves and consequently of elastic constants (Poisson's ratio), whose values were consistent with those recovered in literature. The anomalies detected by each technique are consistent in their indications and they can be correlated to failure phenomena occurring at layer interfaces within the pavement structure or to unexpected variations of the layer thicknesses. The cost-effective geophysical campaign has validated the four-layered system deduced from the original design and has been used to reconstruct a high-resolution map of the pavement in order to discriminate fractures, crack-prone areas or areas where the as-built differs from the original design
Testing times for global financial governance
Ignazio Angeloni believes that the increase in financial interdependence in recent decades has not been matched by sufficient progress in the international coordination among regulatory authorities. In fact, the international financial system has suffered from insufficient globalisation of regulatory and supervisory policies, not excessive globalisation of financial markets.
Testing for alpha-1 antitrypsin in COPD in outpatient respiratory clinics in Spain: A multilevel, cross-sectional analysis of the EPOCONSUL study
Background
Alpha-1 antitrypsin deficiency (AATD) is the most common hereditary disorder in adults, but is under-recognized. In Spain, the number of patients diagnosed with AATD is much lower than expected according to epidemiologic studies. The objectives of this study were to assess the frequency and determinants of testing serum α1-antitrypsin (AAT) levels in COPD patients, and to describe factors associated with testing.
Methods
EPOCONSUL is a cross-sectional clinical audit, recruiting consecutive COPD cases over one year. The study evaluated serum AAT level determination in COPD patients and associations between individual, disease-related, and hospital characteristics.
Results
A total of 4,405 clinical records for COPD patients from 57 Spanish hospitals were evaluated. Only 995 (22.5%) patients had serum AAT tested on some occasion. A number of patient characteristics (being male [OR 0.5, p < 0.001], ≤55 years old [OR 2.38, p<0.001], BMI≤21 kg/m2 [OR 1.71, p<0.001], FEV1(%)<50% [OR 1.35, p<0.001], chronic bronchitis [OR 0.79, p < 0.001], Charlson index ≥ 3 [OR 0.66, p < 0.001], or history or symptoms of asthma [OR 1.32, p<0.001]), and management at a specialized COPD outpatient clinic [OR 2.73,p<0.001] were identified as factors independently associated with ever testing COPD patients for AATD. Overall, 114 COPD patients (11.5% of those tested) had AATD. Of them, 26 (22.8%) patients had severe deficiency. Patients with AATD were younger, with a low pack-year index, and were more likely to have emphysema (p<0.05).
Conclusion
Testing of AAT blood levels in COPD patients treated at outpatient respiratory clinics in Spain is infrequent. However, when tested, AATD (based on the serum AAT levels ≤100 mg/dL) is detected in one in five COPD patients. Efforts to optimize AATD case detection in COPD are needed.SEPA
Testing Naturalness
Solutions to the electroweak hierarchy problem typically introduce a new
symmetry to stabilize the quadratic ultraviolet sensitivity in the self-energy
of the Higgs boson. The new symmetry is either broken softly or collectively,
as for example in supersymmetric and little Higgs theories. At low energies
such theories contain naturalness partners of the Standard Model fields which
are responsible for canceling the quadratic divergence in the squared Higgs
mass. Post the discovery of any partner-like particles, we propose to test the
aforementioned cancellation by measuring relevant Higgs couplings. Using the
fermionic top partners in little Higgs theories as an illustration, we
construct a simplified model for naturalness and initiate a study on testing
naturalness. After electroweak symmetry breaking, naturalness in the top sector
requires at leading order, where and
are the Higgs couplings to a pair of top quarks and top partners, respectively.
Using a multivariate method of Boosted Decision Tree to tag boosted particles
in the Standard Model, we show that, with a luminosity of 30 at a 100
TeV -collider, naturalness could be tested with a precision of 10 % for a
top partner mass up to 2.5 TeV.Comment: 20 pages, 7 figures, 2 table
Hypothesis Testing
PowerPoint slides for Hypothesis Testing. Examples are taken from the Medical Literatur
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