LLukas22/scidocs huggingface dataset:
Development and implementation of a hybrid intelligent controller for interior permanent magnet synchronous motor drive

A hybrid neuro-fuzzy scheme for the online tuning of a genetic based proportional-integral (PI) controller for interior permanent magnet synchronous motor (IPMSM) drives is presented in this paper. The proposed controller is developed for accurate speed control of the IPMSM drive under various system disturbances. In this work, initially different operating conditions are obtained based on motor dynamics incorporating uncertainties. At each operating condition, a genetic algorithm (GA) is used to optimize the PI controller parameters in a closed loop vector control scheme. In the optimization procedure, a performance index is developed to reflect the minimum speed deviation, minimum settling time and zero steady-state error. A fuzzy basis function network (FBFN) is utilized for online tuning of the PI controller parameters to ensure optimum drive performance under different disturbances. The proposed FBFN based PI controller provides a natural framework for combining numerical and linguistic information in a uniform fashion. The proposed controller is successfully implemented in realtime using a digital signal processor board DS 1102 for a laboratory 1 hp IPMSM. The efficacy of the proposed controller is verified by simulation as well as experimental results at different dynamic operating conditions. The proposed controller is found to be robust for applications In IPMSM drive.
Natural Language Processing in Game Studies Research: An Overview

Natural language processing (NLP) is a field of computer science and linguistics devoted to creating computer systems that use human (natural) language as input and/or output. The authors propose that NLP can also be used for game studies research. In this article, the authors provide an overview of NLP and describe some research possibilities that can be explored using NLP tools and techniques. The authors discuss these techniques by performing three different types of NLP analyses of a significant corpus of online videogame reviews: (a) By using techniques such as word and syllable counting, the authors analyze the readability of professionally written game reviews, finding that, across a variety of indicators, game reviews are written for a secondary education reading level; (b) the authors analyze hundreds of thousands of user-submitted game reviews using part-of-speech tagging, parsing, and clustering to examine how gameplay is described. The findings of this study in this area highlight the primary aesthetics elements of gameplay according to the general public of game players; and (c) the authors show how sentiment analysis, or the classification of opinions and feelings based on the words used in a text and the relationship between those words, can be used to explore the circumstances in which certain negatively charged words may be used positively and for what reasons in the domain of videogames. The authors conclude with ideas for future research, including how NLP can be used to complement other avenues of inquiry. at DEPAUL UNIV LIBRARIES on November 2, 2012 sag.sagepub.com Downloaded from
Health-related quality of life of Iranian children with attention deficit/hyperactivity disorder

The present study aimed to examine the psychometric properties of the Persian version of the 23-item PedsQL™ 4.0 Generic Core Scales in Iranian children with attention deficit hyperactivity disorder (ADHD). A clinical sample of seventy-two children aged 8–17 years with ADHD and their parents completed the questionnaire. The control group consisted of 140 children matched for age and gender selected from schools by cluster sampling method. The English language version of the PedsQL™ 4.0 was translated into Persian. Factor analysis was conducted. Reliability analysis for the total scale score was 0.85 for the child report and it was 0.80 for parent report version. Factor loading for items of the questionnaire was very similar to its original version. The quality of life of children with ADHD was statistically lower than that of the control group. The Persian version of the scales has adequate reliability and validity. The HRQOL of children with ADHD is lower than that of the control group. It is lower than that of the community sample of ADHD children from USA or children with cancer.
Septic pulmonary embolism: presenting features and clinical course of 14 patients.

BACKGROUND
Septic pulmonary embolism (SPE) is an uncommon disorder with an insidious onset and is difficult to diagnose.


STUDY OBJECTIVES
To characterize the presenting features and clinical course of patients with SPE.


DESIGN
Retrospective study.


SETTING
Tertiary care, referral medical center.


PATIENTS
Fourteen subjects with SPE diagnosed during a 6-year period between 1996 and 2002.


INTERVENTIONS
None.


RESULTS
The median age of these patients was 37.5 years (range, 14 to 81 years) and included five women. Presenting symptoms included fever (93%), dyspnea (36%), pleuritic chest pain (29%), cough (14%), and hemoptysis (7%). The median duration of symptoms before diagnosis was 18 days (range, 5 to 180 days). A potential source or underlying condition that predisposed to SPE was identified in all 14 patients and included Lemierre syndrome (4 patients), central venous catheter infection (3 patients), prosthetic cardiac valve (2 patients), and pacemaker infection (2 patients). Two patients had a focal extrapulmonary infection, and one patient was an IV drug user. Most common pathogens were staphylococcal species (eight patients) and fusobacterium (four patients). Chest radiographic presentation was usually nonspecific, but CT was more helpful and revealed multiple nodular opacities peripherally, often with cavitation. Transesophageal echocardiography was performed in eight patients and demonstrated infectious vegetations in four cases. Aside from antimicrobial therapy and removal of infected devices, the management of these patients included cardiac surgery (two patients), thoracoscopic surgery with decortication (one patient), and tube thoracostomy (one patient). All 14 patients recovered from their illness.


CONCLUSIONS
We conclude that SPE presents with variable and often nonspecific clinical and radiographic features. The diagnosis is usually suggested by the presence of a predisposing factor, febrile illness, and CT findings of multiple, nodular lung infiltrates peripherally, with or without cavitation.
Factors contributing to the lower mortality with ticagrelor compared with clopidogrel in patients undergoing coronary artery bypass surgery.

OBJECTIVES
This study investigated the differences in specific causes of post-coronary artery bypass graft surgery (CABG) deaths in the PLATO (Platelet Inhibition and Patient Outcomes) trial.


BACKGROUND
In the PLATO trial, patients assigned to ticagrelor compared with clopidogrel and who underwent CABG had significantly lower total and cardiovascular mortality.


METHODS
In the 1,261 patients with CABG performed within 7 days after stopping study drug, reviewers blinded to treatment assignment classified causes of death into subcategories of vascular and nonvascular, and specifically identified bleeding or infection events that either caused or subsequently contributed to death.


RESULTS
Numerically more vascular deaths occurred in the clopidogrel versus the ticagrelor group related to myocardial infarction (14 vs. 10), heart failure (9 vs. 6), arrhythmia or sudden death (9 vs. 3), and bleeding, including hemorrhagic stroke (7 vs. 2). Clopidogrel was also associated with an excess of nonvascular deaths related to infection (8 vs. 2). Among factors directly causing or contributing to death, bleeding and infections were more common in the clopidogrel group compared with the ticagrelor group (infections: 16 vs. 6, p < 0.05, and bleeding: 27 vs. 9, p < 0.01, for clopidogrel and ticagrelor, respectively).


CONCLUSIONS
The mortality reduction with ticagrelor versus clopidogrel following CABG in the PLATO trial was associated with fewer deaths from cardiovascular, bleeding, and infection complications. (Platelet Inhibition and Patient Outcomes [PLATO]; NCT00391872).
Magmatic activity beneath the quiescent Three Sisters volcanic center, central Oregon Cascade Range, USA

[1] Images from satellite interferometric synthetic aperture radar (InSAR) reveal uplift of a broad 10 km by 20 km area in the Three Sisters volcanic center of the central Oregon Cascade Range, 130 km south of Mt. St. Helens. The last eruption in the volcanic center occurred 1500 years ago. Multiple satellite images from 1992 through 2000 indicate that most if not all of 100 mm of observed uplift occurred between September 1998 and October 2000. Geochemical (water chemistry) anomalies, first noted during 1990, coincide with the area of uplift and suggest the existence of a crustal magma reservoir prior to the uplift. We interpret the uplift as inflation caused by an ongoing episode of magma intrusion at a depth of 6.5 km.
Passenger distractions among adolescent drivers.

PROBLEM
Adolescents who drive with peers are known to have a higher risk of crashes. While passengers may distract drivers, little is known about the circumstances of these distractions among teen drivers.


METHOD
This study used survey data on driving among 2,144 California high school seniors to examine distractions caused by passengers.


RESULTS
Overall, 38.4% of youths who drove reported having been distracted by a passenger. Distractions were more commonly reported among girls and students attending moderate- to high-income schools. Talking or yelling was the most commonly reported type of distraction. About 7.5% of distractions reported were deliberate, such as hitting or tickling the driver or attempting to use the vehicle's controls. Driving after alcohol use and having had a crash as a driver were both significant predictors of reporting passenger-related distraction.


CONCLUSION
Adolescents often experience distractions related to passengers, and in some cases these distractions are intentional.


IMPACT ON INDUSTRY
These results provide information about teenage drivers who are distracted by passenger behaviors. In some cases, passengers attempted to use vehicle controls; however, it seems unlikely that this behavior is common enough to warrant redesign of controls to make them less accessible to passengers.
Current Advanced Research Development of Electric Discharge Machining (EDM): A Review

Electrical discharge machining (EDM) process is one of the most commonly used nonconventional precise material removal processes. Electrical discharge machining (EDM) is a process f or shaping hard metals and forming deep complex shaped holes by arc erosion in all kinds of electroconductive materials. Erosion pulse discharge occu rs in a small gap between the work piece and the electrode. This removes the unwanted material from the parent metal through melting and vaporizing in presence of dielectric fluid. In recent years, EDM researchers have explored a number of ways to impr ove EDM Process parameters such as Electrical parameter s, Non-Electrical Parameters, tool Electrode based parameters & Powder based parameters. This new res earch shares the same objectives of achieving more efficient metal removal rate reduction in tool wear and improved surface quality. This paper reviews t he research work carried out from the inception to the development of die-sinking EDM, Water in EDM, dry EDM, and Powder mixed electric Discharge Machining. Within the past decade. & also briefly describing the Current Research technique Trend in EDM, future EDM research direction. Key Word-Electrical Discharge Machining (EDM), Dry EDM, PME DM, MRR, TWR, SQ
Opportunistic IoT: Exploring the harmonious interaction between human and the internet of things

The traditional view of Internet of Things (IoT) attempts to connect all the physical objects to build a global, infrastructure-based IoT. In this paper, however, we will present opportunistic IoT, which is formed based on the ad hoc, opportunistic networking of devices (e.g., mobile phones, smart vehicles) using short-range radio techniques (e.g., Bluetooth, Wi-Fi). The opportunistic IoT demonstrates inherently the close relationship between human and opportunistic connection of smart things. It enables information forwarding and dissemination within and among the opportunistic communities formed based on the movement and opportunistic contact nature of human. We characterize the bi-directional effects between human and opportunistic IoT, discuss the technical challenges faced by this new research field, and propose a reference architecture for developing opportunistic IoT systems. Some of our ongoing practices, including opportunistic mobile social networking, opportunistic marketing, and community service provision are further presented to demonstrate the potential application areas and technical solutions of opportunistic IoT.
Mass media and political accountability

Mass media can play a key role in enabling citizens to monitor the actions of incumbents and to use this information in their voting decisions. This can lead to government which is more accountable and responsive to its citizens’ needs. In spite of the intuitive plausibility of the proposition, there is comparatively little work in the political economy literature that scrutinizes the role and effectiveness of the media in fulfilling this function. A literature, however, is emerging which focuses attention on the importance of the socalled fourth estate of government in the policy process. A key feature of the approach taken here is to focus on incentives the media have to produce and disseminate information. This chapter discusses work on political agency problems with a focus on recent work by the authors. Besley and Burgess (2001), (2002) looks at the effect of media on responsiveness to shocks in India while Besley and Prat (2001) focuses on the determinants and consequences of captured media, with empirical evidence from cross-country data. At the heart of these ∗This is a draft chapter for The Right to Know: Institutions and the Media edited by Roumeen Islam, to be published by the World Bank.
The emotional paradox: Dissociation between explicit and implicit processing of emotional prosody in schizophrenia

People with schizophrenia show well-replicated deficits on tasks of explicit recognition of emotional prosody. However it remains unclear whether they are still sensitive to the implicit cues of emotional prosody, particularly when they exhibit high levels of social anhedonia. A dual processing model suggesting a dissociation between the neural networks involved in explicit and implicit recognition of emotional prosody has yet to be validated. 21 participants with schizophrenia and 21 controls were recruited. In the explicit recognition task, individuals listened to semantically neutral words pronounced with two different emotions and judged their emotional prosody. In the vocal emotional Stroop task, patients and controls listened to words with a positive or negative emotional valence pronounced with congruent or incongruent emotional prosody and judged their emotional content. Patients were also assessed with the Chapman Anhedonia Questionnaire and the Schizophrenic Communication Disorders scale. Individuals with schizophrenia were impaired in their explicit recognition of emotional prosody related to controls. In contrast, they showed a vocal emotional Stroop effect that was identical to controls for reaction time and greater for accuracy: patients were still sensitive to implicit emotional prosody. In addition the vocal emotional Stroop score increased with social anhedonia but was unrelated to communication disorders. Whereas explicit vocal affect recognition is impaired, implicit processing of emotional prosody seems to be preserved in schizophrenia. Our results provide evidence that at a behavioural level, the implicit and explicit processing of emotional prosody can be dissociated. Remediation of emotional prosody recognition in schizophrenia should target cognitive rather than sensory processes.
A 40-nm Sub-Threshold 5T SRAM Bit Cell With Improved Read and Write Stability

The need for power-efficient memories that are capable of operating at low supply voltages has led to the development of several alternative bit cell topologies. The majority of the proposed designs are based on the 6T bit cell with the addition of devices and/or peripheral techniques aimed at reducing leakage and enabling read and write functionality at lower operating voltages. In this brief, we propose a reduced transistor count bit cell that is fully functional in the sub-threshold (ST) region of operation. This asymmetric 5T bit cell is operated through a single-ended read and differential write scheme, with an option for operation as a two-port cell with single-ended write. The bit cell's operating scheme provides a non intrusive read operation and improved write margins for robust functionality. In addition, the circuit's asymmetric characteristic provides a low-leakage state with an additional 5X static power improvement over the reduction inherently achieved through voltage lowering. The proposed bit cell was designed and simulated in a 40-nm commercial CMOS process and is shown to be fully operational at ST voltages as low as 400 mV under global and local process variations. At this supply voltage, a 21X static power reduction is achieved, as compared to the industry-standard 6T bit cell, operated at its minimum supply voltage.
Evaluation of a community health worker intervention and the World Health Organization’s Option B versus Option A to improve antenatal care and PMTCT outcomes in Dar es Salaam, Tanzania: study protocol for a cluster-randomized controlled health systems implementation trial

BACKGROUND
Mother-to-child transmission of HIV remains an important public health problem in sub-Saharan Africa. As HIV testing and linkage to PMTCT occurs in antenatal care (ANC), major challenges for any PMTCT option in developing countries, including Tanzania, are delays in the first ANC visit and a low overall number of visits. Community health workers (CHWs) have been effective in various settings in increasing the uptake of clinical services and improving treatment retention and adherence. At the beginning of this trial in January 2013, the World Health Organization recommended either of two medication regimens, Option A or B, for prevention of mother-to-child transmission of HIV (PMTCT). It is still largely unclear which option is more effective when implemented in a public healthcare system. This study aims to determine the effectiveness, cost-effectiveness, acceptability, and feasibility of: (1) a community health worker (CWH) intervention and (2) PMTCT Option B in improving ANC and PMTCT outcomes.


METHODS/DESIGN
This study is a cluster-randomized controlled health systems implementation trial with a two-by-two factorial design. All 60 administrative wards in the Kinondoni and Ilala districts in Dar es Salaam were first randomly allocated to either receiving the CHW intervention or not, and then to receiving either Option B or A. Under the standard of care, facility-based health workers follow up on patients who have missed scheduled appointments for PMTCT, first through a telephone call and then with a home visit. In the wards receiving the CHW intervention, the CHWs: (1) identify pregnant women through home visits and refer them to antenatal care; (2) provide education to pregnant women on antenatal care, PMTCT, birth, and postnatal care; (3) routinely follow up on all pregnant women to ascertain whether they have attended ANC; and (4) follow up on women who have missed ANC or PMTCT appointments.


TRIAL REGISTRATION
ClinicalTrials.gov: EJF22802. Registration date: 14 May 2013.
Real-Time Upper-Body Human Pose Estimation Using a Depth Camera

 Real-time Upper-body Human Pose Estimation using a Depth Camera Himanshu Prakash Jain, Anbumani Subramanian HP Laboratories HPL-2010-190 Haar cascade based detection, template matching, weighted distance transform and pose estimation Automatic detection and pose estimation of humans is an important task in HumanComputer Interaction (HCI), user interaction and event analysis. This paper presents a model based approach for detecting and estimating human pose by fusing depth and RGB color data from monocular view. The proposed system uses Haar cascade based detection and template matching to perform tracking of the most reliably detectable parts namely, head and torso. A stick figure model is used to represent the detected body parts. Then, the fitting is performed independently for each limb, using the weighted distance transform map. The fact that each limb is fitted independently speeds-up the fitting process and makes it robust, avoiding the combinatorial complexity problems that are common with these types of methods. The output is a stick figure model consistent with the pose of the person in the given input image. The algorithm works in real-time and is fully automatic and can detect multiple non-intersecting people. External Posting Date: November 21, 2010 [Fulltext] Approved for External Publication Internal Posting Date: November 21, 2010 [Fulltext] Copyright 2010 Hewlett-Packard Development Company, L.P.
Computational model and the human perception of emotional body language ( EBL )

Emotions are undeniably a central component of human existence. In recent years, the importance of developing systems which incorporate emotions into human-computer interaction (HCI) has been widely acknowledged. However, research on emotion recognition has been dominated by studies of facial expression of emotion. In comparison, the study of EBL has received relatively little attention. Here we study the phenomena of EBL, specifically of static body postures expressing emotions, from two different perspectives. First, we have built a computational model for the recognition of four basic emotions which achieves a relatively high recognition rate (70 %). Secondly, to study perception of EBL, we examined what body parts attract the observer's attention during the perception of EBL. This is done by tracking eye movements of human subjects during the observation of static postures expressing emotions. Although invaluable information can be inferred from motion, this study will show that information about static body posture is rich enough for both automatic recognition and human perception. The present study contributes in an applicative way both to the development of automatic recognition systems of EBL and provides insight into the nature of human recognition of EBL. 12
Notes on the Schreier graphs of the Grigorchuk group

The paper is concerned with the space of the marked Schreier graphs of the Grigorchuk group and the action of the group on this space. In particular, we describe the invariant set of the Schreier graphs corresponding to the action on the boundary of the binary rooted tree and dynamics of the group action restricted to this invariant set.
Nano-photocatalytic materials: possibilities and challenges.

Semiconductor photocatalysis has received much attention as a potential solution to the worldwide energy shortage and for counteracting environmental degradation. This article reviews state-of-the-art research activities in the field, focusing on the scientific and technological possibilities offered by photocatalytic materials. We begin with a survey of efforts to explore suitable materials and to optimize their energy band configurations for specific applications. We then examine the design and fabrication of advanced photocatalytic materials in the framework of nanotechnology. Many of the most recent advances in photocatalysis have been realized by selective control of the morphology of nanomaterials or by utilizing the collective properties of nano-assembly systems. Finally, we discuss the current theoretical understanding of key aspects of photocatalytic materials. This review also highlights crucial issues that should be addressed in future research activities.