LLukas22/scidocs huggingface dataset:
Cost analysis of Plug-in Hybrid Electric Vehicles including Maintenance & Repair Costs and Resale Values

This paper analyses the cost competitiveness of different electrified propulsion technologies for the German auto market in 2020. Several types of hybrid electric vehicles including parallel hybrids (with and without external charging) and a serial range extended electric vehicle are compared to a conventional car with SI engine, a full battery electric vehicle and a hydrogen powered fuel cell vehicle. Special focus lies on the maintenance and repair cost and the expected resale value of alternative vehicles, which have been integrated within one extensive total cost of ownership model. The assessment shows that the current TCO gaps for alternative drivetrains will decrease significantly by 2020 mainly driven by the reduction in production cost. Furthermore hybrid electric vehicles will profit from lower maintenance and repair cost and a higher expected resale value compared to conventional cars. Therefore, hybrid electric vehicles will be an attractive option in particular for users with high annual mileages, who can benefit from the low operating cost of EVs in combination with unlimited driving range. The analysis concludes that there will not be one dominant powertrain design in the midterm future. Hence, automakers have to manage a wide portfolio of competing drivetrain architectures, which will increase the risk and complexity of strategic decisions.
Design and Manufacturing of a Mobile Rescue Robot

This paper presents design and manufacturing procedure of a tele-operative rescue robot. First, the general task to be performed by such a robot is defined, and variant kinematic mechanisms to form the basic structure of the robot are discussed. Choosing an appropriate mechanism, geometric dimensions, and mass properties are detailed to develop a dynamics model for the system. Next, the strength of each component is analyzed to finalize its shape. To complete the design procedure, Patran/Nastran was used to apply the finite element method for strength analysis of complicated parts. Also, ADAMS was used to model the mechanisms, where 3D sketch of each component of the robot was generated by means of Solidworks, and several sets of equations governing the dimensions of system were solved using Matlab. Finally, the components are fabricated and assembled together with controlling hardware. Two main processors are used within the control system of the robot. The operator's PC as the master processor and the laptop installed on the robot as the slave processor. The performance of the system was demonstrated in Rescue robot league of RoboCup 2005 in Osaka (Japan) and achieved the 2nd best design award
Digital Communications: A Discrete-Time Approach

M. Rice Errata Foreword Page xiii, first paragraph, “bare witness” should be “bear witness” Page xxi, last paragraph, “You know who you.” should be “You know who you are.” Chapter 1 Page 3, second new paragraph, “Pittsburg” should be “Pittsburgh” Page 9, The end of the second lines reads, “... signal sideband AM.” This should be “... single sideband AM.” Page 10, the second line of Section 1.2, “information baring” should be “information bearing” Page 12, Equation (1.1) should read
Pizza into Java: Translating Theory into Practice

Pizza is a strict superset of Java that incorporates three ideas from the academic community: parametric polymorphism, higher-order functions, and algebraic data types. Pizza is defined by translation into Java and compiles into the Java Virtual Machine, requirements which strongly constrain the design space. Nonetheless, Pizza fits smoothly to Java, with only a few rough edges.
Towards QoE assessment of encrypted YouTube adaptive video streaming in mobile networks

Video streaming has become one of the most prevalent mobile applications, and takes a huge portion of the traffic on mobile networks today. YouTube is one of the most popular and volume-dominant video content providers. Understanding the user perception on the quality (i.e., Quality of Experience or QoE) of YouTube video streaming services is thus paramount for the content provider as well as its content delivery network (CDN) providers. Although various video QoE assessment approaches proposed to use different Key Performance Indicators (KPIs), they are all essentially related to a common parameter: Bitrate. However, after YouTube adopted HTTPS as its adaptive video streaming method to better protect user privacy and network security, bitrate cannot be obtained anymore from encrypted video traffic via typical deep packet inspection (DPI) method. In this paper, we tackle this challenge by proposing a machine learning based bitrate estimation (MBE) approach to parse bitrate information from IP packet level measurement. For evaluating the effectiveness of MBE, we have chosen video Mean Opinion Score (vMOS) proposed by a leading telecom vendor, as the QoE assessment framework, and have conducted comprehensive experiments to study the impact of bitrate estimation accuracy on its KPIs for HTTPS YouTube video streaming service. Experimental results show that MBE is a feasible and highly effective approach to obtain in real time the bitrate information from encrypted video streaming traffic.
Sensorless Control of Induction Motors for Maximum Steady-State Torque and Fast Dynamics at Field Weakening

A method is described that fully utilizes both the maximum inverter voltage and current for steady-state torque production at field weakening. The control algorithm thus provides the maximum possible torque in the entire field weakening region. Dynamic requirements when operating at maximum voltage are met by creating a temporary voltage margin to enable a fast reaction of the current controller. The control algorithm is insensitive to changes of the machine parameters and to variations of the dc link voltage. The approach is based on a stator flux oriented scheme and permits operation without using a speed sensor
MAPS: Multiresolution Adaptive Parameterization of Surfaces

We construct smooth parameterizations of irregular connectivity triangulations of arbitrary genus 2-manifolds. Our algorithm uses hierarchical simplification to efficiently induce a parameterization of the original mesh over a base domain consisting of a small number of triangles. This initial parameterization is further improved through a hierarchical smoothing procedure based on Loop subdivision applied in the parameter domain. Our method supports both fully automatic and user constrained operations. In the latter, we accommodate point and edge constraints to force the align∗wailee@cs.princeton.edu †wim@bell-labs.com ‡ps@cs.caltech.edu §cowsar@bell-labs.com ¶dpd@cs.princeton.edu ment of iso-parameter lines with desired features. We show how to use the parameterization for fast, hierarchical subdivision connectivity remeshing with guaranteed error bounds. The remeshing algorithm constructs an adaptively subdivided mesh directly without first resorting to uniform subdivision followed by subsequent sparsification. It thus avoids the exponential cost of the latter. Our parameterizations are also useful for texture mapping and morphing applications, among others. CR
Guided internet-based cognitive behavioural treatment for chronic back pain reduces pain catastrophizing: a randomized controlled trial.

OBJECTIVE
The aim of this study was to investigate whether an Internet-based cognitive behavioural intervention would have an effect on the symptoms of chronic back pain.


DESIGN
Experimental design with a treatment group and a control group measured before and after a treatment period.


SUBJECTS
Participants who met the criteria for chronic back pain (n = 54).


METHODS
All participants were screened in a live, structured interview before inclusion. The study period was 12 weeks and the treatment consisted of education, cognitive skills acquisition, behavioural rehearsal, generalization and maintenance. The main outcome of interest was the catastrophizing subscale of the Coping Strategies Questionnaire.


RESULTS
There were statistically significant reductions from pre- to post-treatment in catastrophizing in the treatment group, and an improvement in quality of life for the treatment group. However, most outcome measures did not indicate a positive treatment outcome. On a scale measuring pain catastrophizing, 58% (15/26) of the treated participants showed reliable improvement, compared with 18% (5/28) of the control group.


CONCLUSION
Internet-based cognitive behavioural therapy can serve as a complement for individuals with chronic pain who prefer this treatment and have difficulties accessing specialist treatment facilities.
Association between daily activities, process skills, and motor skills in
community-dwelling patients after left hemiparetic stroke

[Purpose] The purpose of this study was to evaluate the relationships between daily activities, information processing, and motor skills in individuals with hemineglect after having a left hemiparetic stroke. [Subjects and Methods] The instrumental activities of daily living of 35 patients (22 male and 13 female; age: 57.1 ± 16.9 years) with hemineglect after having a left hemiparetic stroke were assessed by using three clinical measurement tools, including activity card sorting, assessment of motor and process skills, and the modified Barthel Index. [Results] The results of the regression analysis indicated that the patients' processing skills in instrumental activities of daily living after having a left hemiparetic stroke were reduced. Participation in leisure and social activities was also affected as assessed by using the modified Barthel Index. [Conclusion] This study supports the clinical need for rehabilitation intervention after a left hemiparetic stroke to improve patients' processing skills and independence in performing activities of daily living.
Mediterranean and DASH diet scores and mortality in women with heart failure: The Women's Health Initiative.

BACKGROUND
Current dietary recommendations for patients with heart failure (HF) are largely based on data from non-HF populations; evidence on associations of dietary patterns with outcomes in HF is limited. We therefore evaluated associations of Mediterranean and Dietary Approaches to Stop Hypertension (DASH) diet scores with mortality among postmenopausal women with HF.


METHODS AND RESULTS
Women's Health Initiative participants were followed up from the date of HF hospitalization through the date of death or last participant contact before August 2009. Mediterranean and DASH diet scores were calculated from food-frequency questionnaires. Cox proportional hazards models adjusted for demographics, health behaviors, and health status were used to calculate hazard ratios and 95% confidence intervals (CI). For a median of 4.6 years of follow-up, 1385 of 3215 (43.1%) participants who experienced a HF hospitalization died. Multivariable-adjusted hazard ratios were 1 (reference), 1.05 (95% CI, 0.89-1.24), 0.97 (95% CI, 0.81-1.17), and 0.85 (95% CI, 0.70-1.02) across quartiles of the Mediterranean diet score (P trend=0.08) and 1 (reference), 1.04 (95% CI, 0.89-1.21), 0.83 (95% CI, 0.70-0.98), and 0.84 (95% CI, 0.70-1.00) across quartiles of the DASH diet score (P trend=0.01). Diet score components, vegetables, nuts, and whole grain intake, were inversely associated with mortality.


CONCLUSIONS
Higher DASH diet scores were associated with modestly lower mortality in women with HF, and there was a nonsignificant trend toward an inverse association with Mediterranean diet scores. These data provide support for the concept that dietary recommendations developed for other cardiovascular conditions or general populations may also be appropriate in patients with HF.


CLINICAL TRIAL REGISTRATION
URL: http://www.clinicaltrials.gov. Unique identifier: NCT00000611.
Treatment of genital mycoplasma in colonized pregnant women in late pregnancy is associated with a lower rate of premature labour and neonatal complications.

Mycoplasma hominis and Ureaplasma spp. may colonize the human genital tract and have been associated with adverse pregnancy outcomes such as preterm labour and preterm premature rupture of membranes. However, as these bacteria can reside in the normal vaginal flora, there are controversies regarding their true role during pregnancy and so the need to treat these organisms. We therefore conducted a retrospective analysis to evaluate the treatment of genital mycoplasma in 5377 pregnant patients showing symptoms of potential obstetric complications at 25-37 weeks of gestation. Women presenting with symptoms were routinely screened by culture for the presence of these bacteria and treated with clindamycin when positive. Compared with uninfected untreated patients, women treated for genital mycoplasma demonstrated lower rates of premature labour. Indeed preterm birth rates were, respectively, 40.9% and 37.7% in women colonized with Ureaplasma spp. and M. hominis, compared with 44.1% in uncolonized women (Ureaplasma spp., p 0.024; M. hominis, p 0.001). Moreover, a reduction of neonatal complications rates was observed, with 10.9% of newborns developing respiratory diseases in case of Ureaplasma spp. colonization and 5.9% in the presence of M. hominis, compared with 12.8% in the absence of those bacteria (Ureaplasma spp., p 0.050; M. hominis, p <0.001). Microbiological screening of Ureaplasma spp. and/or M. hominis and pre-emptive antibiotic therapy of symptomatic pregnant women in late pregnancy might represent a beneficial strategy to reduce premature labour and neonatal complications.
Context-Based Machine Translation

Context-Based Machine TranslationTM (CBMT) is a new paradigm for corpusbased translation that requires no parallel text. Instead, CBMT relies on a lightweight translation model utilizing a fullform bilingual dictionary and a sophisticated decoder using long-range context via long n-grams and cascaded overlapping. The translation process is enhanced via in-language substitution of tokens and phrases, both for source and target, when top candidates cannot be confirmed or resolved in decoding. Substitution utilizes a synonym and near-synonym generator implemented as a corpus-based unsupervised learning process. Decoding requires a very large target-language-only corpus, and while substitution in target can be performed using that same corpus, substitution in source requires a separate (and smaller) source monolingual corpus. Spanish-to-English CBMT was tested on Spanish newswire text, achieving a BLEU score of 0.6462 in June 2006, the highest BLEU reported for any language pair. Further testing also shows that quality increases above the reported score as the target corpus size increases and as dictionary coverage of source words and phrases becomes more complete. 1
Generative Structural Representation of Tonal Music.

The usefulness and desirability of representation schemes which explicitly show musical structure has often been commented upon. A particular aim of music theory and analysis has been to describe and derive musical structure, and this article discusses computational systems based on this work. Six desirable properties of a structural representation are described: that it should be constructive, derivable, meaningful, decomposable, hierarchical, and generative. Previous computational work based on the generative and reductional theories of Schenker and of Lerdahl and Jackendoff is examined in the light of these properties. Proposals are made for a representational framework which promises the desirable properties. The framework shares characteristics with earlier work but does not use pure trees as a representational structure, instead allowing joining of branches in limited circumstances to make directed acyclic graphs. Important issues in developing a representation scheme within this framework are discussed, especially concerning the representation of polyphonic music, of rhythmic patterns, and of up-beats. An example is given of two alternative representations within this framework of the same segment of music used to exemplify earlier work: the opening of the theme of Mozart‘s piano sonata in A major, K.331.
Online Grocery Shopping Around the World: Examples of Key Business Models

The grocery industry evolved from mom-and-pop stores to mega-markets to online grocery buying, with many different forms along the way. The global market for groceries in 2000 is over $2 trillion. The online grocery segment of the market is expected to reach $34 billion by 2002, a thirty-three fold increase from 1998. This tutorial examines the issues surrounding online groceries and looks closely at fourteen examples from the Americas, Europe, and Australia. The online market is currently one of growth, not profits. Two key components of profitability for online vendors are the ability to generate sufficient volume, while keeping delivery costs low. The Internet also impacts business-tobusiness relations among grocers. This tutorial describes key online grocery firms including Peapod, NetGrocer, Streamline, WebVan, Ruok@Net, Albert Heijn, Disco, Ykköshalli, Shoplink, Coles and Woolworths. Each of these companies represents different business models, with differing organizational structure and scope of operations. Each has its own set of strengths and
Evaluating hygienic cleaning in health care settings: what you do not know can harm your patients.

Recent studies using direct covert observation or a fluorescent targeting method have consistently confirmed that most near patient surfaces are not being cleaned in accordance with existing hospital policies while other studies have confirmed that patients admitted to rooms previously occupied by patients with hospital pathogens have a substantially greater risk of acquiring the same pathogen than patients not occupying such rooms. These findings, in the context recent studies that have shown disinfection cleaning can be improved on average more than 100% over baseline, and that such improvement has been associated with a decrease in environmental contamination of high touch surfaces, support the benefit of decreasing environmental contamination of such surfaces. This review clarifies the differences between measuring cleanliness versus cleaning practices; describes and analyzes conventional and enhanced monitoring programs; addresses the critical aspects of evaluating disinfection hygiene in light of guidelines and standards; analyzes current hygienic practice monitoring tools; and recommends elements that should be included in an enhanced monitoring program.
Neutrino Physics: An Experimental Overview

The field of neutrino physics is currently very exciting, with several recent results pointing to new physics. I will give an overview of the current experimental situation, focusing primarily on neutrino oscillation results. The data are not entirely consistent however, and puzzles remain. I will then review the new experiments which are poised to solve the outstanding puzzles.
Transesophageal echocardiography to assess mitral valve movement and flow during long term cardiopulmonary resuscitation: How cardiac effects fade with time.

BACKGROUND
Although the cardiac pump and the thoracic pump are the two main theories, the actual mechanisms of blood flow during Cardiopulmonary Resuscitation (CPR) in humans are still unclear. The aim of this study was to explore the relationship between the pump mechanism and time after cardiac arrest.


METHODS AND RESULTS
20 patients with non-traumatic cardiac arrest were enrolled in this study. Transesophageal two-dimensional and pulse-doppler echocardiography were used during CPR. The duration of CPR was 60-80min if there was no return of spontaneous circulation (ROSC). We found: (1) The mechanisms of blood flow during CPR varied with time: the thoracic pump took the place of the cardiac pump after prolonged CPR in the same patient. (2) Peak transmitral flow (TMF) decreased (p<0.05) after prolonged CPR in patients with mitral valve closure during chest compressions. (3) Longer elapsed time from collapse to CPR and TEE was correlated to lower peak TMF in CPR (Both p<0.05). (4) Peak TMF(p<0.01), mitral valve time-velocity integrals(p<0.05), left ventricular stroke volume (p<0.05) and end-tidal carbon dioxide tension (p<0.05) is higher in the group of patients with mitral valve closure during chest compressions. This group of patients had a shorter time from collapse to CPR (p<0.01), shorter time from collapse to TEE (p<0.01) and had overall better outcomes.


CONCLUSIONS
The pump mechanism changes over the course of prolonged CPR. Cardiac effect is an essential part of the pump at the beginning of cardiac arrest, but it faded with time, making the thoracic pump the dominate mechanism after prolonged CPR.
Lead exposure from soil in Peruvian mining towns: a national assessment supported by two contrasting examples.

OBJECTIVE
To estimate the population of Peru living in the vicinity of active or former mining operations that could be exposed to lead from contaminated soil.


METHODS
Geographic coordinates were compiled for 113 active mines, 138 ore processing plants and 3 smelters, as well as 7743 former mining sites. The population living within 5 km of these sites was calculated from census data for 2000. In addition, the lead content of soil in the historic mining town of Cerro de Pasco and around a recent mine and ore processing plant near the city of Huaral was mapped in 2009 using a hand-held X-ray fluorescence analyser.


FINDINGS
Spatial analysis indicated that 1.6 million people in Peru could be living within 5 km of an active or former mining operation. Two thirds of the population potentially exposed was accounted for by 29 clusters of mining operations, each with a population of over 10 000 each. These clusters included 112 active and 3438 former mining operations. Soil lead levels exceeded 1200 mg/kg, a reference standard for residential soil, in 35 of 74 sites tested in Cerro de Pasco but in only 4 of 47 sites tested around the newer operations near Huaral.


CONCLUSION
Soil contamination with lead is likely to be extensive in Peruvian mining towns but the level of contamination is spatially far from uniform. Childhood exposure by soil ingestion could be substantially reduced by mapping soil lead levels, making this information public and encouraging local communities to isolate contaminated areas from children.