668 research outputs found
THE RECENT SEISMICITY AT THE ALP-DINARIDES JUNCTION
2005/2006The aim of this Phd thesis is to get an insight on recent active seismic events
occurring in the area of the Alps-Dinarides junction. This area is tectonically active in the greater scenario of the collision between the Eurasian plate and the African one, particularly the Adria microplate.
In this study we have adapted the reflectivity method package developed for applied geophysics purpose to obtain synthetic seismograms related to earthquake signals, in particular for what it concerns the extended source modelling, and we have applied it to study the Friuli area events. In particular, to validate the method, we have performed both the direct modelling
of the 2002 Carnia event, obtaining for it a 2km x 2km fault area, and calculated a scenario for the Friuli 1976 event, which turns to be compatible in its pattern with the observed macroseismic intensity felt.
In the second part we have performed a JHD relocation for the 2004 Bovec sequence,
comparing the aftershock relocations with those related to the 1998 sequence. We have
observed that the 1998 rupture continued towards NW during the 2004 event. This is in
agreement with the post event Coulomb's stress distribution, obtained by modelling the 1998 Bovec event. From the Coulomb stress modelling we recognize also a general increase of stress to the West and to the East of Bovec epicentral area.
At last we have performed a waveform source parameter inversion for four events in
the Friuli area and eleven events in the Western Slovenia area (magnitude mainly M>3.5), finding fault plane solutions in agreement with both the North-South directed stress field and the geometry of faults in each of the areas
Deep Semi-Supervised Anomaly Detection for Finding Fraud in the Futures Market
Modern financial electronic exchanges are an exciting and fast-paced
marketplace where billions of dollars change hands every day. They are also
rife with manipulation and fraud. Detecting such activity is a major
undertaking, which has historically been a job reserved exclusively for humans.
Recently, more research and resources have been focused on automating these
processes via machine learning and artificial intelligence. Fraud detection is
overwhelmingly associated with the greater field of anomaly detection, which is
usually performed via unsupervised learning techniques because of the lack of
labeled data needed for supervised learning. However, a small quantity of
labeled data does often exist. This research article aims to evaluate the
efficacy of a deep semi-supervised anomaly detection technique, called Deep
SAD, for detecting fraud in high-frequency financial data. We use exclusive
proprietary limit order book data from the TMX exchange in Montr\'eal, with a
small set of true labeled instances of fraud, to evaluate Deep SAD against its
unsupervised predecessor. We show that incorporating a small amount of labeled
data into an unsupervised anomaly detection framework can greatly improve its
accuracy.Comment: 8 pages, 3 figure
Relationships Between Externalization Behaviors and Team Cognition Variables in Distributed Teams
Members of distributed teams often have difficulty sharing unique information with their teammates during decision making tasks. These communication problems may hinder the development of cognitions that allow team members to reach a similar understanding of the content and structure of task information. The C-MAP intervention (Rentsch, Delise, & Hutchison, 2008) was designed to assist team members in sharing their information through behaviors that convey the content and structure of information by using specific communication behaviors and developing a knowledge object. In the present study, the knowledge object took the form of a white board where information was posted and organized. The development of the team knowledge object was the focus of the study. Using the knowledge object, team members could post a piece of unique information, highlight it, and organize it into clusters, thereby illustrating the content and structure of information through knowledge object development (KOD) behaviors. The present study evaluated the relationships among four types of KOD behaviors (posting content, highlighting content, conveying structure within domain, and conveying structure across domains) used to externalize pieces of unique information and two team cognition variables (transferred and interoperable knowledge) that develop with respect to each piece of unique information. Results provided evidence that posting content behaviors and highlighting content behaviors were positively related to transferred knowledge. Results also indicated that conveying structure within domain behaviors were negatively related to interoperable knowledge. However, conveying structure across domains behaviors were positively related to interoperable knowledge. Implications of these findings for the C-MAP intervention and suggestions for future research are presented
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Religious Exemptions to Neutral Laws of General Applicability and the Theory of Disparate Impact Discrimination
This Article argues that the theory undergirding religious exemptions to neutral laws of general applicability represents a viable theoretical and legal justification for race-based disparate-impact policies such as Title VII. Though not always expressly stated as such, one can best understand the theory underpinning the exemptions approach to religious free exercise as a paradigm of disparate impact discrimination. Similar to disparate-impact discrimination in the context of race and employment policy, the statutory level serves as the domain of execution for religious-based models of disparate impact. Just as Washington v. Davis relegated remedies for race-based disparate impact in employment to the statutory level, the Court’s ruling in Employment Division v. Smith served the same function in the context of religion. However, in sharp contrast to Title VII and the paradigm of race-based disparate impact in the context of employment, the Supreme Court has not evinced hostility toward disparate-impact legislation in the context of religious free exercise; it has not found a tension between the positive right to be judged as an individual and the tendency of Congress and other legislative bodies to engage in explicitly religious-conscious decision-making. Constitutionally speaking, there is no tenable method of differentiating between race-conscious and religious-conscious decision-making. Because there is no legitimate method of constitutional differentiation here, and because the Court has not interpreted the legal-theoretical model of religious exemptions as offending the Equal Protection Clause, this Article posits that the theory undergirding religious exemptions to neutral laws of general applicability represents a viable theoretical and legal justification for race-based disparate-impact policies such as Title VII
Me, Myself, & Identity Online: Identity Salience on Facebook vs Non-Virtual Identity
Many Social Networking Sites have come and gone over the past decade, but Facebook continues to grow in popularity. Facebook is designed to connect people to one another through virtual networks of “friends” where members participate in the presentation of self virtually- through profile creation, maintenance, and exchanges of content. Social Networking Sites create a location for identity formation and projection that is similar, yet distinct, from face-to-face interactions. Facebook offers a unique avenue for people to control their presentation of self, while maintaining reflexive features. This study this study explores the notion of a particular “Facebook role” while specifically addressing front stage projections in relation to backstage information and the resulting differences in identity. In effect, people are “themselves” on Facebook, just a consistently “good” version of themselves
ALCUNI DOCUMENTI SULLA PESCA DELL’ISOLA DI LESINA SOTTO IL GOVERNO AUSTRO-UNGARICO E DURANTE L’AMMINISTRAZIONE ITALIANA
L’Autore in questo saggio porta alla luce dei documenti inediti sulla pesca
dell’isola di Lesina, frutto di una ricerca presso l’Archivio di Stato di Trieste, che
interessano gli anni 1903, 1911-1913 e 1918 per quanto riguarda il periodo di Governo
austro-ungarico e gli anni 1919-1921 per la breve Amministrazione italiana.U ovom eseju
autor predstavlja pojedine neobjavljene dokumente o ribarstvu na otoku Hvaru, koji su
plod istraživanja provedenog u Državnom arhivu u Trstu, a čuvaju se u fondu Governo
marittimo in Trieste (Pomorski gubernij u Trstu). Odnose se na godine 1903., 1911.-1913.
i 1918. za vrijeme Austro-ugarske vladavine nad otokom te na godine 1919.-1921. kratkog
razdoblja talijanske uprave.
To su svjedočanstva o lokalnim Komisijama za ribarstvo, o zakonima i količinama
slane ribe za izvoz u Italiju i o potrebnim ispravama radi dobivanja nadoknade u slučaju
krađe mreža. U drugim su dokumentima iskazane količine ulova cijelog otoka za mjesec
kolovoz 1918. Za vrijeme talijanske uprave donose se šestomješečni „inventari“ za godine
1919. i 1920. o broju i vrijednosti ribarskih brodova, mreža, alata te o broju ribara. Za
razdoblje 1920.-1921. pronađene su razne mjesečne izjave o ulovu na pojedinim otočkim
lokalitetima, zatim prijedlozi o ljetnom ribarstvu i procedure za dodjelu ribolovnih pošta.
Na kraju eseja donosi se protest dvadeset jelšanskih ribara protiv određenog načina
ribarenja u njihovom ribnjaku te problemi nastali uslijed Rapalskog ugovora (12. studeni
1920.)
Situating Street Kids: An Ethnography of Nomadic Street Kids in Portland, Oregon
Homelessness in the United States has been widely researched in the social sciences. Only within the last 20 years have ethnographic studies focused on street kids, a youth subculture. Some of this work has emphasized the transience of street kid lifeways and problematized the street kid lifestyle, an approach that has rendered street kids as victims. More recently, social scientists have refocused their analytic lens on the ways that street kids are agents of their own actions and understood only within the context of past events that shaped decisions to live on the street. This thesis aligns with the latter body of research and focuses specifically on street kid subculture in Portland, Oregon. I argue that a nomadic lifestyle is the cornerstone of street kid ethos and a meaningful site for framing a general disenchantment with mainstream American culture. Despite this disenchantment, I argue that street kid lifeways are better regarded as a subculture rather than a counterculture. To this end, I explore the ways that street kid identity is shaped by facets of their nomadic and communal lifestyle, dependent on the American mainstream, and ultimately impermanent. All data was collected during summer 2012 in Portland, Oregon through participant observation and interviews
ALCUNI DOCUMENTI SULLA PESCA DELL’ISOLA DI LESINA SOTTO IL GOVERNO AUSTRO-UNGARICO E DURANTE L’AMMINISTRAZIONE ITALIANA
L’Autore in questo saggio porta alla luce dei documenti inediti sulla pesca
dell’isola di Lesina, frutto di una ricerca presso l’Archivio di Stato di Trieste, che
interessano gli anni 1903, 1911-1913 e 1918 per quanto riguarda il periodo di Governo
austro-ungarico e gli anni 1919-1921 per la breve Amministrazione italiana.U ovom eseju
autor predstavlja pojedine neobjavljene dokumente o ribarstvu na otoku Hvaru, koji su
plod istraživanja provedenog u Državnom arhivu u Trstu, a čuvaju se u fondu Governo
marittimo in Trieste (Pomorski gubernij u Trstu). Odnose se na godine 1903., 1911.-1913.
i 1918. za vrijeme Austro-ugarske vladavine nad otokom te na godine 1919.-1921. kratkog
razdoblja talijanske uprave.
To su svjedočanstva o lokalnim Komisijama za ribarstvo, o zakonima i količinama
slane ribe za izvoz u Italiju i o potrebnim ispravama radi dobivanja nadoknade u slučaju
krađe mreža. U drugim su dokumentima iskazane količine ulova cijelog otoka za mjesec
kolovoz 1918. Za vrijeme talijanske uprave donose se šestomješečni „inventari“ za godine
1919. i 1920. o broju i vrijednosti ribarskih brodova, mreža, alata te o broju ribara. Za
razdoblje 1920.-1921. pronađene su razne mjesečne izjave o ulovu na pojedinim otočkim
lokalitetima, zatim prijedlozi o ljetnom ribarstvu i procedure za dodjelu ribolovnih pošta.
Na kraju eseja donosi se protest dvadeset jelšanskih ribara protiv određenog načina
ribarenja u njihovom ribnjaku te problemi nastali uslijed Rapalskog ugovora (12. studeni
1920.)
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