270 research outputs found
Statically Checking Web API Requests in JavaScript
Many JavaScript applications perform HTTP requests to web APIs, relying on
the request URL, HTTP method, and request data to be constructed correctly by
string operations. Traditional compile-time error checking, such as calling a
non-existent method in Java, are not available for checking whether such
requests comply with the requirements of a web API. In this paper, we propose
an approach to statically check web API requests in JavaScript. Our approach
first extracts a request's URL string, HTTP method, and the corresponding
request data using an inter-procedural string analysis, and then checks whether
the request conforms to given web API specifications. We evaluated our approach
by checking whether web API requests in JavaScript files mined from GitHub are
consistent or inconsistent with publicly available API specifications. From the
6575 requests in scope, our approach determined whether the request's URL and
HTTP method was consistent or inconsistent with web API specifications with a
precision of 96.0%. Our approach also correctly determined whether extracted
request data was consistent or inconsistent with the data requirements with a
precision of 87.9% for payload data and 99.9% for query data. In a systematic
analysis of the inconsistent cases, we found that many of them were due to
errors in the client code. The here proposed checker can be integrated with
code editors or with continuous integration tools to warn programmers about
code containing potentially erroneous requests.Comment: International Conference on Software Engineering, 201
Regge and Okamoto symmetries
We will relate the surprising Regge symmetry of the Racah-Wigner 6j symbols
to the surprising Okamoto symmetry of the Painleve VI differential equation.
This then presents the opportunity to give a conceptual derivation of the Regge
symmetry, as the representation theoretic analogue of the author's previous
derivation of the Okamoto symmetry.
[The resulting derivation is quite simple, so it would be surprising if it
has not been previously observed. Any references would be appreciated!]Comment: 14 page
Stability conditions and Stokes factors
Let A be the category of modules over a complex, finite-dimensional algebra.
We show that the space of stability conditions on A parametrises an
isomonodromic family of irregular connections on P^1 with values in the Hall
algebra of A. The residues of these connections are given by the holomorphic
generating function for counting invariants in A constructed by D. Joyce.Comment: Very minor changes. Final version. To appear in Inventione
New technologies of representation, collaborative autoethnographies and âtaking it publicâ: An example from âFacilitating Communication on Sexual Topics in Educationâ
New technologies for representing and communicating autoethnographies make it possible to be publically visible in new and interesting ways that werenât possible prior to the digital revolution. An important ingredient in this process is the internet platforms that can make the digitisation of performances accessible across the world, even for short, modest creations from less experienced digital storytellers and film makers. As an illustration of the potential applications of digital technologies for âtakingâ autoethnographic research to the âpublic,â and making our research accessible to a wider audience we share âReverberations,â a collaborative autoethnography exploring bullying, homophobia, and other types of sexual harassment and associated feelings of shame, embarrassment and fear which often surround these topics
Disponibilidad biolĂłgica del calcio y fĂłsforo en diferentes fuentes comerciales.
En comparaciĂłn con los materiales de rereferencia (100 por ciento), los mayores porcentajes de disponibilidad biolĂłgica se observaron en los fosfatos monodicĂĄlcicos (110.70 por ciento para calcio y 113.58 por ciento para fĂłsforo) y en los fosfatos bicĂĄlcicos (100.69 por ciento para calcio y 106.16 por ciento para fĂłsforo), mientras que el superfosfato triple (87.11 por ciento) para calcio y 99.15 por ciento para fĂłsforo) y la harina de huesos calcinada (86.58 por ciento para calcio y 91.29 por ciento para fĂłsforo) presentaron los menores porcentaje
The personal is political: reframing individual acts of kindness as social solidarity in social work practice
This paper develops the theoretical position proposed by Zygmunt Bauman (2009), that one of the greatest contemporary âsocial evilsâ or injustices we face in society, is the total marketization and individualisation of our lived experience. Bauman (2009) along with Harvey (2005) argues that the last forty years of social, political, and economic reform under the zeitgeist of neoliberalism have transferred the burden of care from the state to the individual. This paper will explore the position that the dominant neoliberal culture within social work, in the form of ânew managerialismâ has reconstituted social work institutionally as one where interventions now focus on minimum statutory interventions emphasising; risk management, resource allocation, audit culture, and the promotion of self-care through a case work methodology. The discussion will analyse these macro social, political and economic discourses using an ethnographic approach based upon Michael Burawoyâs Global Ethnographic (GE) methodology (Burawoy et al, 2010). Despite the current landscape the research highlights the importance of the personal reframed as the political, and the nuanced ways in which acts of defiance and resistance against the prevailing orthodoxies have been adopted by social workers on the front line
Displacement rate effect on the flexural properties of glass fiber reinforced polyurethane
Numerical Weather Prediction (NWP) and hybrid ARMA/ANN model to predict global radiation
We propose in this paper an original technique to predict global radiation
using a hybrid ARMA/ANN model and data issued from a numerical weather
prediction model (ALADIN). We particularly look at the Multi-Layer Perceptron.
After optimizing our architecture with ALADIN and endogenous data previously
made stationary and using an innovative pre-input layer selection method, we
combined it to an ARMA model from a rule based on the analysis of hourly data
series. This model has been used to forecast the hourly global radiation for
five places in Mediterranean area. Our technique outperforms classical models
for all the places. The nRMSE for our hybrid model ANN/ARMA is 14.9% compared
to 26.2% for the na\"ive persistence predictor. Note that in the stand alone
ANN case the nRMSE is 18.4%. Finally, in order to discuss the reliability of
the forecaster outputs, a complementary study concerning the confidence
interval of each prediction is proposedComment: Energy (2012)
The rise of impact in academia: repackaging a long-standing idea
Since the Research Excellence Framework of 2014 (REF2014) âimpactâ has created a conceptual conundrum gradually being pieced together by academics across the Higher Education sector. Emerging narratives and counter-narratives focus upon its role in dictating institutional reputation and funding to universities. However, not only does literature exploring impact, rather than âREF2014 impactâ per se, seldom see it as part of a changing sector; it often treats it as a new phenomenon within the political and social sciences.
Here, drawing on academic perceptions of impact set in motion in the UK during the 1970s, we critique the underlying assumption that impact is new. We argue three key points to this end. Firstly, contrary to much of the literature examining academic perceptions of impact, it is a long-standing idea. Secondly, within such accounts, the effect of academic research on policy and society (which is longstanding) and the instrumentalisation of impact as a funding requirement (which is relatively new) are conflated. Thirdly, this conflation creates a novelty effect. In the context of a wider sea change to Higher Education, we examine different forms of consent, acceptance, endorsement and resistance surrounding the ânewâ impact agenda to argue that this ânovelty effectâ masks an important transitory process of acclimatisation among academics
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