811 research outputs found
Real or not? Identifying untrustworthy news websites using third-party partnerships
Untrustworthy content such as fake news and clickbait have become a pervasive problem on the Internet, causing significant socio-political problems around the world. Identifying untrustworthy content is a crucial step in countering them. The current best-practices for identification involve content analysis and arduous fact-checking of the content. To complement content analysis, we propose examining websites? third-parties to identify their trustworthiness. Websites utilize third-parties, also known as their digital supply chains, to create and present content and help the website function. Third-parties are an important indication of a website?s business model. Similar websites exhibit similarities in the third-parties they use. Using this perspective, we use machine learning and heuristic methods to discern similarities and dissimilarities in third-party usage, which we use to predict trustworthiness of websites. We demonstrate the effectiveness and robustness of our approach in predicting trustworthiness of websites from a database of News, Fake News, and Clickbait websites. Our approach can be easily and cost-effectively implemented to reinforce current identification methods
Design-driven Uniaxial and Biaxial Tensile Testing of Knitted Fabrics Applied to Construction
Knitted fabrics are rarely subjected to tensile stress tests in the field of architectural construction
materials, mostly due to their common use as drapery. However, recent non-standard applications
of tensioned knitted textiles to hybrid lightweight constructions call for the assessment of their
mechanical behavior. In the light of the absence of specific testing methodologies regarding
knitted fabrics in the field of construction, this study aims at investigating customized testing
techniques that target design requisites, as well as extending previous groundwork on plain weftknitted
textiles to tuck-loop knit structures. Fabrics with a piquet Lacoste loop structure are tested
uniaxially and biaxially in order to estimate the feasibility of a relatively large-scale project. The
challenging task consists of stretching the limited production width in weft direction to the
extended dimensions of the tensile architectural project. Hence the study focuses on elongation
limits and especially on the maximum elongation that allows elastic deformation. Extracted
empirical data are expressed in the form of stress/strain curves that enable an appropriate
understanding of the textiles’ mechanical behavior. This inquiry points out the extent to which knit
pattern favors directional elongation in warp as opposed to weft or vice-versa. In addition, it
addresses the mechanical performance of knitted textiles by means of a strategic customization of
tensile tests that can make them better at informing the design process and feasibility assessment
Cu-Au type orderings in the staggered quadrupolar region of the fcc Blume Emery Griffiths model
The spin-1 Ising (BEG) model has been simulated using a cellular automaton
(CA) algorithm improved from the Creutz cellular automaton (CCA) for a
face-centered cubic (fcc) lattice. The ground state diagram (, ) of the
fcc BEG model has ferromagnetic (), quadrupolar () and staggered
quadrupolar () ordering regions. The simulations have been made in the
staggered quadrupolar region for the parameter values in the intervals and . The phase diagrams on the (, ) and the (, ) planes have been obtained through and lines, respectively. The staggered quadrupolar ordering region
separates into five ordering regions (, , (type-I),
(type-II) and ) which have the different stoichiometric Cu-Au
type structures.Comment: 24 pages, 11 figure
First Order Phase Transition in the 3-dimensional Blume-Capel Model on a Cellular Automaton
The first order phase transition of the three-dimensional Blume Capel are
investigated using cooling algorithm which improved from Creutz Cellular
Automaton for the parameter value in the first order phase transition
region. The analysis of the data using the finite-size effect and the histogram
technique indicate that the magnetic susceptibility maxima and the specific
heat maxima increase with the system volume () at .Comment: 13 pages, 4 figure
Combining electrical stimulation mediated by iterative learning control with movement practice using real objects and simulated tasks for post-stroke upper extremity rehabilitation.
Objective: Task specific training and Electrical Stimulation (ES) are techniques used in rehabilitation of the upper extremity post stroke. This study describes the feasibility of using a rehabilitation system that combines
personalised, precisely controlled levels of ES to the anterior deltoid, triceps and finger and wrist extensors
during goal-oriented activity utilising real objects from daily life.
Materials and Methods:Four chronic stroke participants undertook seventeen intervention sessions, each of one hour
duration. During each session, particpants performed goal
-orientated tasks while Iterative learning control (ILC) updated the ESsignal applied to each muscle group. The update was based on the difference between the ideal and actual movement in the previous attempt at the task, measured using Microsoft Kinect and PrimeSense sensors. The control system applied the minimum amount of ES required
with a view to facilitating success at each given task while
maximising voluntary effort.
Results: Preliminary results demonstrate that ES mediated by ILC resulted in a statistically significant improvement in range of movement in all four joint angles studied (shoulder flexion; elbow, wrist and index finger extension)
over 17 intervention sessions. Additionally, participants required signficantly less extrinsic support for each task. The tasks and system is described and initial intervention data are reported.
Discussion: The feasibility of using this system for assisting upper limb movement has been demonstrated. A large scale pilot RCT is now required
Effects of Thiamethoxam on Vespula Germanica (F.) (Hymenoptera: Vespidae)
Damage of pesticides used in agriculture on non-target organisms (except honey bees) is not sufficiently considered and neglected. Studies showed that wild bees, like honey bees, were also affected by pesticides. Wild bee species should also be protected because of their importance in pollination and biological control and also in order to protect biodiversity. Effects of pesticides on wild bees should be investigated without delay and precautions should be taken to protect the generations of wildlife. In addition, while increasing the agricultural areas, habitat for wild pollinators should be established.In this study, effect of Thiamethoxam, an agriculturally active agent in the neonicotinoid group, commonly used in agriculture fields, on the European wasp (Vespula germanica) was investigated. For this purpose, 2 molar carnation-flavored syrup in a petri dish was placed in a field where wild bees are frequent, and wild bees had got accustomed there. Trial doses were prepared with thiamethoxam dose commonly used in agricultural areas (15 ml/100 L water) and 50% dilutions of this dose (15.00, 7.50, 3.75, 1.87, 0.93, 0.46, 0.23, 0.12, 0.06 ml/100 L water) and fed in 2 molar syrup. Those who returned to the carnation petri dish after feeding were recorded at the 1st, 4th and 24th hours.At the end of the study, bees fed with 15.00, 7.50, and 3.75 ml / 100 L doses of the pesticide all died. One hour after pesticide ingestion, 84.73% of the control group and 13.33% of the bees fed with 1.87 ml / 100L dose, were alive and returned to the syrup petri dish
ISR3: Communication and Data Storage for an Unmanned Ground Vehicle*
Computer vision researchers working in mobile robotics and other real-time domains are forced to con- front issues not normally addressed in the computer vision literature. Among these are communication, or how to get data from one process to another, data storage and retrieval, primarily for transient, image- based data, and database management, for maps, ob- ject models and other permanent (typically 3D) data. This paper reviews eorts at CMU, SRI and UMass to build real-time computer vision systems for mobile robotics, and presents a new tool, called ISR3, for com- munication, data storage/retrieval and database man- agement on the UMass Mobile Perception Laboratory (MPL), a NAVLAB-like autonomous vehicle
The Critical Finite Size Scaling Relation of the Order-Parameter Probability Distribution for the Three-Dimensional Ising Model on the Creutz Cellular Automaton
We study the order parameter probability distribution at the critical point
for the three-dimensional spin-1/2 and spin-1 Ising models on the simple cubic
lattice with periodic boundary conditions. The finite size scaling relation for
the order parameter probability distribution is tested and verified numerically
by microcanonical Creutz cellular automata simulations. The state critical
exponent \delta, which characteries the far tail regime of the scaling order
parameter probability distribution, is estimated for 3-d Ising models using the
cellular automaton simulations at the critical temperature. The results are in
good agreement with the monte carlo calculations.Comment: 8 pages 5 figure
Mucoid Cyst of The Penile Skin: A Rare Entity
A 9-year old male patient was admitted to our clinic for circumcision. Physical examination revealed a mass in the prepuce. After excision of the mass, histopathological examination was consistent with a mucoid cyst of the penile skin, which has been rarely reported. Pathologists and clinicians dealing with genitourinary system pathology should be familiar with this rarely encountered entity.Key Words: Mucoid cyst, penile ski
- …