LLukas22/scidocs huggingface dataset:
On the performance of near-far resistant CDMA detectors in the presence of synchronization errors

Little has so far been reported on the performance of the near-far resistant CDMA detectors in the presence of the synchronization errors. Starting with the general mathematical model of matched filters, this paper examines the effects of three classes of synchronization errors (ie., time-delay errors, carrier phase errors, and carrier frequency errors) on the performance (bit error rate and near-far resistance) of an emerging type of near-far resistant coherent DS/SSMA detectors, Le., the linear decorrelating detector (LDD). For comparison, the corresponding results for the conventional detector are also presented. It is shown that the LDD can still maintain a considerable performance advantage over the conventional detector even when some synchronization errors exist. Finally, several computer simulations are carried out to verify the theoretical conclusions.
Estimation and Stabilization of Humanoid Flexibility Deformation Using Only Inertial Measurement Units and Contact Information

Most robots are today controlled as being entirely rigid. But often, as for HRP-2 robot, there are flexible parts, intended for example to absorb impacts. The deformation of this flexibility modifies the orientation of the robot and endangers balance. Nevertheless, robots have usually inertial sensors (IMUs) to reconstruct their orientation based on gravity and inertial effects. Moreover, humanoids have usually to ensure a firm contact with the ground, which provides reliable information on surrounding environment. We show in this study how important it is to take into account these information to improve IMU-based position/orientation reconstruction. We use an extended Kalman filter to rebuild the deformation, making the fusion between IMU and contact information, and without making any assumption on the dynamics of the flexibility. We show how, with this simple setting, we are able to compensate for perturbations and to stabilize the end-effector’s position/orientation in the world reference frame. We show also that this estimation is reliable enough to enable a closed-loop stabilization of the flexibility and control of the CoM position with the simplest possible model. balance; compliance; state observation; sensor fusion; inertial measurement unit; force sensors; stabilization
Wegener granulomatosis: an analysis of 158 patients.

OBJECTIVE
To prospectively study the clinical features, pathophysiology, treatment and prognosis of Wegener granulomatosis.


DESIGN
Of the 180 patients with Wegener granulomatosis referred to the National Institute of Allergy and Infectious Diseases during the past 24 years, 158 have been followed for 6 months to 24 years (a total of 1229 patient-years).


MEASUREMENTS
Characteristics of clinical presentation, surgical pathology, course of illness, laboratory and radiographic findings, and the results of medical and surgical treatment have been recorded in a computer-based information retrieval system.


SETTING
The Warren Magnuson Clinical Center of the National Institutes of Health.


MAIN RESULTS
Men and women were equally represented; 97% of patients were white, and 85% were more than 19 years of age. The mean period of follow-up was 8 years. One hundred and thirty-three patients (84%) received "standard" therapy with daily low-dose cyclophosphamide and glucocorticoids. Eight (5.0%) received only low-dose cyclophosphamide. Six (4.0%) never received cyclophosphamide and were treated with other cytotoxic agents and glucocorticoids. Ten patients (6.0%) were treated with only glucocorticoids. Ninety-one percent of patients experienced marked improvement, and 75% achieved complete remission. Fifty percent of remissions were associated with one or more relapses. Of 99 patients followed for greater than 5 years, 44% had remissions of greater than 5 years duration. Thirteen percent of patients died of Wegener granulomatosis, treatment-related causes, or both. Almost all patients had serious morbidity from irreversible features of their disease (86%) or side effects of treatment (42%).


CONCLUSIONS
The course of Wegener granulomatosis has been dramatically improved by daily treatment with cyclophosphamide and glucocorticoids. Nonetheless, disease- and treatment-related morbidity is often profound. Alternative forms of therapy have not yet achieved the high rates of remission induction and successful maintenance that have been reported with daily cyclophosphamide treatment. Despite continued therapeutic success with cyclophosphamide, our long-term follow-up of patients with Wegener granulomatosis has led to increasing concerns about toxicity resulting from prolonged cyclophosphamide therapy and has encouraged investigation of other therapeutic regimens.
Randomized Study of Persistent Atrial Fibrillation Ablation: Ablate in Sinus Rhythm Versus Ablate Complex-Fractionated Atrial Electrograms in Atrial Fibrillation.

BACKGROUND
Achieving long-term successful outcomes with ablation of persistent atrial fibrillation (AF) remains a clinical and procedural challenge. We aimed to assess 2 ablation strategies for persistent AF: pulmonary vein antral isolation (PVAI) in sinus rhythm after direct current cardioversion versus PVAI and ablation targeting complex-fractionated atrial electrograms while in AF.


METHODS AND RESULTS
Between June 2009 and July 2013, patients with continuous persistent AF for ≥3 months were prospectively randomized to either direct current cardioversion before PVAI and posterior wall/septum ablation while in sinus rhythm (group 1), versus same ablation in group 1 in addition to complex-fractionated atrial electrogram ablation while in AF (group 2). The procedural profiles and clinical outcomes of the 2 strategies were compared. Ninety patients were randomized to group 1 (n=46) or group 2 (n=44). There were no differences in baseline characteristics between groups. Over 365 days of follow-up after the index procedure, 16 patients (35%) in group 1 and 13 patients (30%) in group 2 remained arrhythmia-free off antiarrhythmic medications. Over long-term follow-up (median, 867 days), arrhythmia-free survival off antiarrhythmic medications was more likely in group 1 than in group 2 in Kaplan-Meier analysis (Log Rank P=0.04). Group 1 ablation was associated with significantly shorter procedural duration and fluoroscopy time (231±72 versus 273±76 min; P=0.008 and 54 [Q1-Q3: 46-67] versus 66 (Q1-Q3: 53-83] min; P=0.018, respectively).


CONCLUSIONS
In patients with persistent AF, PVAI in sinus rhythm after direct current cardioversion is associated with higher success and shorter procedural and fluoroscopy times compared with PVAI in AF with additional complex-fractionated atrial electrogram ablation.


CLINICAL TRIAL REGISTRATION
URL: http://www.clinicaltrials.gov. Unique identifier: NCT02429648.
Association of State Recreational Marijuana Laws With Adolescent Marijuana Use.

Importance
Historical shifts are occurring in marijuana policy. The effect of legalizing marijuana for recreational use on rates of adolescent marijuana use is a topic of considerable debate.


Objective
To examine the association between the legalization of recreational marijuana use in Washington and Colorado in 2012 and the subsequent perceived harmfulness and use of marijuana by adolescents.


Design, Setting, and Participants
We used data of 253 902 students in eighth, 10th, and 12th grades from 2010 to 2015 from Monitoring the Future, a national, annual, cross-sectional survey of students in secondary schools in the contiguous United States. Difference-in-difference estimates compared changes in perceived harmfulness of marijuana use and in past-month marijuana use in Washington and Colorado prior to recreational marijuana legalization (2010-2012) with postlegalization (2013-2015) vs the contemporaneous trends in other states that did not legalize recreational marijuana use in this period.


Main Outcomes and Measures
Perceived harmfulness of marijuana use (great or moderate risk to health from smoking marijuana occasionally) and marijuana use (past 30 days).


Results
Of the 253 902 participants, 120 590 of 245 065(49.2%) were male, and the mean (SD) age was 15.6 (1.7) years. In Washington, perceived harmfulness declined 14.2% and 16.1% among eighth and 10th graders, respectively, while marijuana use increased 2.0% and 4.1% from 2010-2012 to 2013-2015. In contrast, among states that did not legalize recreational marijuana use, perceived harmfulness decreased by 4.9% and 7.2% among eighth and 10th graders, respectively, and marijuana use decreased by 1.3% and 0.9% over the same period. Difference-in-difference estimates comparing Washington vs states that did not legalize recreational drug use indicated that these differences were significant for perceived harmfulness (eighth graders: % [SD], -9.3 [3.5]; P = .01; 10th graders: % [SD], -9.0 [3.8]; P = .02) and marijuana use (eighth graders: % [SD], 5.0 [1.9]; P = .03; 10th graders: % [SD], 3.2 [1.5]; P = .007). No significant differences were found in perceived harmfulness or marijuana use among 12th graders in Washington or for any of the 3 grades in Colorado.


Conclusions and Relevance
Among eighth and 10th graders in Washington, perceived harmfulness of marijuana use decreased and marijuana use increased following legalization of recreational marijuana use. In contrast, Colorado did not exhibit any differential change in perceived harmfulness or past-month adolescent marijuana use following legalization. A cautious interpretation of the findings suggests investment in evidence-based adolescent substance use prevention programs in any additional states that may legalize recreational marijuana use.
Spousal Intimate Partner Violence is Associated with HIV and Other STIs Among Married Rwandan Women

HIV is a health problem in Rwanda, where the adult HIV prevalence is 3.1% (WHO 2008 in Online database of HIV/AIDS epidemiological data, found at: http://www.who.int/globalatlas ); the majority of those infected are women (UNAIDS 2008 in http://data.unaids.org/pub/Report/2008/rwanda_2008_country_progress_report_en.pdf ). Prior studies indicate that intimate partner violence is frequently associated with increased HIV risk in women, often because men who abuse their wives also exhibit riskier sexual behaviors (Silverman et al. in JAMA 300:703–710 2008. Population—based data from the 2005 Rwanda Demographic and Health Survey indicate that women with few, if any, other sexual risk factors who have experienced sexual, physical, or emotional abuse within their marriages are 1.61–3.46 times as likely to test positive for HIV, and 2.14–4.11 times more likely to report another STI. These findings confirm prior clinical studies that indicate that intimate partner violence is a correlate of HIV/STIs in Rwanda. Further research is needed to determine whether Rwandan men that abuse their wives have higher baseline rates of HIV/STI infection.
Cuff size influences blood pressure measurement in obese children and adolescents.

INTRODUCTION
Recently, we established that a group of obese children and adolescents had a higher blood pressure (BP) than a healthy control group. In the present study, we investigate whether the higher BP in the obese group was influenced by BP cuff sizes.


METHODS
A total of 104 obese patients aged 10-18 years were compared with 50 controls. BP was measured with a validated oscillometric device using an appropriate cuff size depending on each person's arm circumferences (AC) according to the manufacturer's recommendation; small (AC < 23 cm), medium (23 ≤ AC < 32 cm) and large (AC ≥ 32 cm).


RESULTS
Cuff sizes had a significant impact on BP measurements. Despite the influence of cuff size, multiple regression analyses revealed that systolic BP was 6.8 mmHg higher and diastolic BP 3.2 mmHg higher in the obese group than in the control group. A step function, i.e. a sudden fall in BP, was seen at the point of switching from small to medium cuff size in the control group, which suggests that systolic BP was overestimated when using small cuff size and underestimated when using medium cuff size in subjects with an AC near 23 cm.


CONCLUSIONS
BP was higher in the obese group than in the control group although BP was influenced by BP cuff sizes.


FUNDING
The present project received funding from The Health Sciences Research Foundation of Region Zealand, The Danish Heart Foundation, Kathrine og Vigo Skovgaards Fond, Det Medicinske Selskab i København, Edith og Henrik Henriksens Mindelegat and LEO Pharma's Travel Grant.


TRIAL REGISTRATION
ClinicalTrials.gov id: NCT01310088.
View-dependent refinement of progressive meshes

Level-of-detail (LOD) representations are an important tool for realtime rendering of complex geometric environments. The previously introduced progressive mesh representation defines for an arbitrary triangle mesh a sequence of approximating meshes optimized for view-independent LOD. In this paper, we introduce a framework for selectively refining an arbitrary progressive mesh according to changing view parameters. We define efficient refinement criteria based on the view frustum, surface orientation, and screen-space geometric error, and develop a real-time algorithm for incrementally refining and coarsening the mesh according to these criteria. The algorithm exploits view coherence, supports frame rate regulation, and is found to require less than 15% of total frame time on a graphics workstation. Moreover, for continuous motions this work can be amortized over consecutive frames. In addition, smooth visual transitions (geomorphs) can be constructed between any two selectively refined meshes. A number of previous schemes create view-dependent LOD meshes for height fields (e.g. terrains) and parametric surfaces (e.g. NURBS). Our framework also performs well for these special cases. Notably, the absence of a rigid subdivision structure allows more accurate approximations than with existing schemes. We include results for these cases as well as for general meshes. CR Categories: I.3.3 [Computer Graphics]: Picture/Image Generation Display algorithms; I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling surfaces and object representations. Additional
Education in nonviolence: Levinas' Talmudic readings and the study of sacred texts

The essay offers a Jewish account of education in nonviolence by examining the first of Emmanuel Levinas' Talmudic readings "Toward the Other." I begin by exploring Levinas' unique philosophy of religious education, which nurtures responsibility for the other, as part of an alternative to enlightenment-orientated modern Jewish thought pioneered by the likes of Gershom Scholem, Martin Buber, and Franz Rosenzweig. I then consider a question raised by Yusef Waghid and Zehavit Gross at the 2012 meeting of the Philosophy of Education Society of Great Britain in Oxford concerning whether one must forget in order to forgive great wrong doing such as South African Apartheid or the Holocaust of European Jewry. Through an examination of Levinas' treatment of several Talmudic passages, I argue that the Jewish tradition takes a paradoxical approach to this question. We should forget in order to remember wrong doing. The spiritual process that both perpetrators and victims must undergo in order to embrace this paradox, I contend, is a genuine education in nonviolence. Language: en
Balancing performance measures for information security management: A balanced scorecard framework

Purpose – To provide useful references for manufacturing industry which guide the linkage of business strategies and performance indicators for information security projects. Design/methodology/approach – This study uses balanced scorecard (BSC) framework to set up performance index for information security management in organizations. Moreover, BSC used is to strengthen the linkage between foundational performance indicators and progressive business strategy theme. Findings – The general model of information security management builds the strategy map with 12 strategy themes and 35 key performance indicators are established. The development of strategy map also express how to link strategy themes to key performance indicators. Research limitations/implications – The investigation of listed manufacturing companies in Taiwan may limit the application elsewhere. Practical implications – Traditional performance measurement system like return on investment, sales growth is not enough to describe and manage intangible assets. This study based on BSC to measure information security management performance can provide the increasing value from improving measures and management insight in modern business. Originality/value – This study combines the information security researches and organizational performance studies. The result helps organizations to assess values of information security projects and consider how to link projects performance to business strategies.
Irregular Repeat – Accumulate Codes 1

In this paper we will introduce an ensemble of codes called irregular repeat-accumulate (IRA) codes. IRA codes are a generalization of the repeat-accumluate codes introduced in [1], and as such have a natural linear-time encoding algorithm. We shall prove that on the binary erasure channel, IRA codes can be decoded reliably in linear time, using iterative sum-product decoding, at rates arbitrarily close to channel capacity. A similar result appears to be true on the AWGN channel, although we have no proof of this. We illustrate our results with numerical and experimental examples.
Review of Fish Swimming Modes for Aquatic Locomotion Submitted to the IEEE Journal of Oceanic Engineering December 1998

Several physico-mechanical designs evolved in fish are currently inspiring robotic devices for propulsion and manoeuvring purposes in underwater vehicles. Considering the potential benefits involved, this paper presents an overview of the swimming mechanisms employed by fish. The motivation is to provide a relevant and useful introduction to the existing literature for engineers with an interest in the emerging area of aquatic biomechanisms. The fish swimming types are presented following the well-established classification scheme and nomenclature originally proposed by Breder. Fish swim either by Body and/or Caudal Fin (BCF) movements or using Median and/or Paired Fin (MPF) propulsion. The latter is generally employed at slow speeds, offering greater manoeuvrability and better propulsive efficiency, while BCF movements can achieve greater thrust and accelerations. For both BCF and MPF locomotion specific swimming modes are identified, based on the propulsor and the type of movements (oscillatory or undulatory) employed for thrust generation. Along with general descriptions and kinematic data, the analytical approaches developed to study each swimming mode are also introduced. Particular reference is made to lunate tail propulsion, undulating fins and labriform (oscillatory pectoral fin) swimming mechanisms, identified as having the greatest potential for exploitation in artificial systems. Index Terms marine animals, hydrodynamics, underwater vehicle propulsion, mobile robots, kinematics * Submitted as a regular paper to the IEEE Journal of Oceanic Engineering, March 1998. † Ocean Systems Laboratory, Dept. of Computing & Electrical Engineering, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, U.K. Tel: +(44) (0) 131 4513350. Fax: +(44) (0) 131 4513327. Email: dml@cee.hw.ac.uk ‡ Dept. of Mechanical & Chemical Engineering, Heriot-Watt University, Edinburgh EH14 4AS, Scotland,U.K. Review of Fish Swimming Modes for Aquatic Locomotion -2
Problem-Based Self-care Groups Versus Cognitive Behavioural Therapy for Persons on Sick Leave Due to Common Mental Disorders: A Randomised Controlled Study

Purpose To evaluate the interventional capacity of problem based method groups (PBM) regarding mental health and work ability compared to cognitive behavioural therapy (CBT) for persons on sick leave due to common mental disorders. Methods In a randomised controlled design the experimental group received PBM and the control group received CBT. Outcomes were measured by the Hospital Anxiety and Depression Scale (HADS), the Stress and Crisis Inventory 93 (SCI-93) and the Dialogue about Working Ability instrument (DOA). Results Twenty-two participants in the PBM group and 28 in the CBT group completed intervention. Both groups showed significant lower scores on the two HADS subscales. Regarding stress the PBM group showed significant decrease in one (out of three) subscales of SCI-93. The CBT group showed significant decrease on all subscales of SCI-93. Regarding work ability the PBM group showed significant higher scores on one of five subscales of DOA. The CBT group showed significant higher scores on four of five subscales of DOA. Between groups there were significant differences to the favour of CBT on one of two subscales of HADS, all three subscales of SCI-93 and on two of the five subscales of DOA. Conclusion PBM seem to be able to reduce anxiety- and depression symptoms. CBT showed to be superior to PBM in reducing symptoms in all aspects of mental health, except for anxiety, in which they seem equally effective. Regarding work ability CBT showed to be superior, with significant effect on more aspects compared to PBM.
The Forms of Bullying Scale (FBS): validity and reliability estimates for a measure of bullying victimization and perpetration in adolescence.

The study of bullying behavior and its consequences for young people depends on valid and reliable measurement of bullying victimization and perpetration. Although numerous self-report bullying-related measures have been developed, robust evidence of their psychometric properties is scant, and several limitations inhibit their applicability. The Forms of Bullying Scale (FBS), with versions to measure bullying victimization (FBS-V) and perpetration (FBS-P), was developed on the basis of existing instruments, for use with 12- to 15-year-old adolescents to economically, yet comprehensively measure both bullying perpetration and victimization. Measurement properties were estimated. Scale validity was tested using data from 2 independent studies of 3,496 Grade 8 and 783 Grade 8-10 students, respectively. Construct validity of scores on the FBS was shown in confirmatory factor analysis. The factor structure was not invariant across gender. Strong associations between the FBS-V and FBS-P and separate single-item bullying items demonstrated adequate concurrent validity. Correlations, in directions as expected with social-emotional outcomes (i.e., depression, anxiety, conduct problems, and peer support), provided robust evidence of convergent and discriminant validity. Responses to the FBS items were found to be valid and concurrently reliable measures of self-reported frequency of bullying victimization and perpetration, as well as being useful to measure involvement in the different forms of bullying behaviors. (PsycINFO Database Record (c) 2013 APA, all rights reserved).
Facial Expression Recognition Based on Facial Components Detection and HOG Features

In this paper, an effective method is proposed to handle the facial expression recognition problem. The system detects the face and facial components including eyes, brows and mouths. Since facial expressions result from facial muscle movements or deformations, and Histogram of Oriented Gradients (HOG) is very sensitive to the object deformations, we apply the HOG to encode these facial components as features. A linear SVM is then trained to perform the facial expression classification. We evaluate our proposed method on the JAFFE dataset and an extended Cohn-Kanade dataset. The average classification rate on the two datasets reaches 94.3% and 88.7%, respectively. Experimental results demonstrate the competitive classification accuracy of our proposed method. Keywords—facial expression recognition, HOG features, facial component detection, SVM