Miracle-dz/UniFAR-FTUs huggingface dataset:
Comparison of Alternative Imputation Methods in the National Teacher and Principal Survey 1

The Schools and Staffing Survey (SASS) is undergoing a redesign and will be called the National Teacher and Principal Survey (NTPS) during its next administration, to be conducted during the 2015-16 school year. As part of this redesign, it is of interest to determine if multiple imputation methods or administrative records could replace or supplement the current hot deck imputation procedure. One research objective is to determine if the coverage and quality of the administrative records is sufficient to use as an alternative imputation source. The other objective is to explore additional suitable imputation techniques with and without using administrative records. This paper will discuss the direct assignment imputation method, in which administrative records will be used to assign values to missing data for the matching SASS record. Other imputation methods that will be explored include predictive mean matching imputation and propensity score imputation. To evaluate the proposed imputation methods we will look at several metrics that examine the bias of the predictive, distributional, and estimation accuracy of each of the methods.
Wage Growth Decomposition: Mobility, Learning, and Loss of Human Capital in Unemployment Preliminary

This paper studies sources of cumulative wage growth and its sensitivity to unemployment history for two education groups in the US. I assume that ex ante homogenous workers stochastically live through several stages of career, giving rise to ex post within-age and between-age heterogeneity. Mobility rates and the ability to acquire and retain skills di¤er across career stages, and rms post stage-speci c o¤ers taking these di¤erences into account. In the calibrated model the equilibrium o¤ers range is very wide initially, it contracts in mid-career, and shifts down later on. With a wide job ladder mobility can account for 57 percent of the total wage growth over the rst career decade and it can become a negative factor afterwards because workers move to search within a lower range of o¤ers. I nd that workers lose up to 6.6 percent of their lifetime wage increase due both to depreciation of skills in unemployment and foregone skills accumulation. Finally, lifetime earnings of college graduates are found to be especially sensitive to unemployment history.
Nonresponse Adjustment Using Logistic Regression : To Weight or Not To Weight ?

Unit nonresponse in sample surveys is accommodated by reallocating the weights of unit nonrespondents to respondents. One way of doing this is to develop logistic regression models to predict the probability of response. The inverses of the predicted probabilities from these models are then used to adjust the sampling weights. In rounds two and three of the Community Tracking Study (CTS) Household and Physician Surveys, nonresponse adjustments to the weights were carried out using weighted logistic regression models. In the fourth round of the survey, unweighted logistic regression models were used to adjust for nonresponse, with design variables, basic sampling weights, and higher order interactions included in the models, following a methodology introduced in papers by Vartivarian and Little (2003). In this paper, we compare nonresponse adjustments using the two methods.
Variables Affecting First-Time Parents' Feeding Behaviors

After deciding whether to breastfeed or formula feed, parents must determine when to introduce solid foods. We examined feeding behaviors of 131 first-time parents, applying the theory of planned behavior to our investigation. Results indicated that parents' attitudes influenced infant feeding behavior at 6 months old. Therefore, Extension professionals should consider providing programming and materials to encourage healthful attitudes, in addition to focusing on general nutrition information. Moreover, our sample relied heavily on health professionals, friends and family, and books or videos for infant feeding information, so Extension professionals should consider targeting other influential groups in addition to targeting parents directly.
DEVELOPMENT OF INNOVATIVE METHODOLOGIES TO EVALUATE ITS SAFETY AND USABILITY : HUMANIST TF E

During the HUMANIST project Task the aim of Task Force E (TF E) was to develop innovative methodologies to evaluate ITS safety and usability. A matrix of methods for the assessment of ADAS and IVIS was developed and subsequently a proposed model for integration of these methodologies was proposed. A number of methods for the assessment of driver appropriation of ITS over time were also established and another model was proposed for the integration of these methods into one integrated methodology.
E-LEARNING PERSONALIZATION BASED ON DYNAMIC LEARNERS ' PREFERENCE

Personalized e-learning implementation is recognized one of the most interesting research areas in the distance web-based education. Since the learning style of each learner is different we must to fit elearning to the different needs of learners. This paper discusses teaching strategies matching with learner’s personality using the Myers-Briggs Type Indicator (MBTI) tools. Based on an innovative approach, a framework for building an adaptive learning management system by considering learner’s preference has been developed. The learner’s profile is initialized according to the results obtained by the student in the index of learning styles questionnaire and then fine-tuned during the course of the interaction using the Bayesian model. Moreover, an experiment was conducted to evaluate the performance of our approach. The result reveals the system effectiveness for which it appears that the proposed approach may be promising.
Relationship between mentalizing abilities , attachment styles , anxiety and depressive symptom levels in fibromyalgia patients

How to cite this article: Inanc L, Bodur NE, Cinar Parlak S, Sarikaya M, Sari A, Gulec H, Citak S. Relationship between mentalizing abilities, attachment styles, anxiety, and depressive symptom levels in fibromyalgia patients. Dusunen Adam The Journal of Psychiatry and Neurological Sciences 2019;32:113-20. Relationship between mentalizing abilities, attachment styles, anxiety and depressive symptom levels in fibromyalgia patients
A 5-Gb/s/pin transceiver for DDR memory interface with a crosstalk suppression scheme

A 5-Gb/s/pin transceiver for DDR memory interface is proposed with a crosstalk suppression scheme. The proposed transceiver implements a staggered memory bus topology and a glitch canceller to suppress crosstalk-induced distortions in a memory channel. The transceiver is implemented using 0.18 mum CMOS process and operates at 5-Gb/s. The results demonstrate widened eye diagram and lower bit error rate. The eye width and height of the proposed scheme increases 28.3% and 11.1% compared to the conventional memory transceiver, respectively. The p-p jitter of output data is 52.82-ps.
Speaker Verification and Identification

Speaker recognition system verifies or identifies a speaker’s identity based on his/her voice considered as one of the most convenient biometric characteristic for human machine communication. This chapter introduces several speaker recognition systems and examines their performances under various conditions. Speaker recognition can be classified into either speaker verification or speaker identification. Speaker verification aims to verify whether an input speech corresponds to a claimed identity, and speaker identification aims to identify an input speech by selecting one model from a set of enrolled speaker models. Both the speaker verification and identification system consist of three essential elements: feature extraction, speaker modeling, and matching. The feature extraction pertains to extracting essential features from an input speech for speaker recognition. The speaker modeling pertains to probabilistically modeling the feature of the enrolled speakers. The matching pertains to matching the input feature to various speaker models. Speaker modeling techniques including Gaussian mixture model (GMM), hidden Markov model (HMM), and phone n-grams are presented, and in this chapter, their performances are compared under various tasks. Several verification and identification experimental results presented in this chapter indicate that speaker recognition performances are highly dependent on the acoustical environment. A comparative study between human listeners and an automatic speaker verification system is presented, and it indicates that an automatic speaker verification system can outperform human listeners. The applications of speaker recognition are summarized, and finally various obstacles that must be overcome are discussed.
Evaluation of a System Layer Design for the Visual Knowledge Builder

Evaluation of a System Layer Design for the Visual Knowledge Builder. (December 2011) Arun Bharath Gomathinayagam, B. Tech, PSG College of Technology, Coimbatore, India Chair of Advisory Committee: Dr. Frank M. Shipman When users are searching for documents, they must sift through a collection of potentially relevant documents assessing, categorizing and prioritizing them based on the current task at hand, a process we refer to as document triage. Since users‟ time is precious, as much information as possible should be presented to them to aid the process of document triage. This thesis presents a simple visualization and a set of features that can help users in identifying information of interest. As a part of this thesis, the System Layer of the Visual Knowledge Builder (VKB) was developed as a tab strip container. Each of the tabs presents a different type of information about Web Documents. The types of information currently included in VKB are: a summary of the Web Document, keywords based on users‟ interests provided by the Interest Profile Manager (IPM), popular keywords from a social bookmarking site, metadata about the Web Document, a list of outgoing links of the Web Document, and the history of the Web Document. We performed a heuristic evaluation to assess the usefulness of the new visualization and features. During the evaluation, participants were asked to rate the usefulness of each of
SURVEY METHODOLOGY FOR STUDYING RADON LEVELS IN HOMES

For a sizable fraction of the total public, recent studies indicate that the inhalation of radon decay products in the indoor environment results in exposure to ionizing radiation, with some sources estimating that indoor radon exposure may be responsible for more than 10% of the United States incidence of lung cancer (Bundnetz, 1978). Radon is a radioactive gas which is produced through the decay of radium226, a naturally occurring element present in trace amounts throughout the earth's crust. Radon and its decay products rarely reach elevated levels outdoors because of continual dispersion and dilution. However, the reduced ventilation in enclosed buildings may enable radon and its decay products to reach levels indoors that are orders of magnitude above the outdoor level. Elevated radon levels have been found in homes in many states (Alter and Oswald, 1987). In this paper we present issues in the design of surveys to measure radon concentrations in indoor air using the New York State Radon Survey as an example. Sponsored by the New York State Energy Research and Development Authority (NYSERDA), the survey was conducted in 1985-86 to determine the extent to which high radon concentrations occurred in New York State homes and the relationship between indoor radon levels and local geology and house construction characteristics (Sheldon, et al., 1988).
A Novel Secure Localization Scheme for Wireless Sensor Networks

Localization has great significance for theoretical study and practical applications in wireless sensor networks. Meanwhile, security has been a serious issue and great challenge for the development of localization technologies since attackers can alter localization information to affect the accuracy of localization results. In this paper, we propose a novel secure localization scheme based on signcryption (SLBS) that will allow sensors to assure the confidentiality and integrity of their location information. We perform analysis to explain why SLBS can enhance the security and accuracy of localization through the signcryption mechanism and simulation to verify the performance of SLBS. The analysis and simulation serve to demonstrate that SLBS can effectively reduce localization errors in hostile environments and keep the distance measurement errors within a small range.
A framework for throughput and stability analysis of a DS-CDMA network

We propose a framework for throughput and stability analysis of a direct sequence code division multiple access (DS-CDMA) network. Given the chip rate, processing gains, packet structure, coding scheme, and the characteristics of the wireless channel, we derive a system of non-linear fixed point equations for the sustainable link bit rates. The dimension of this system is equal to the number of network nodes receiving transmissions from other nodes. Generally, this non-linear system may have multiple locally stable solutions which indicates a possible instability of the DS-CDMA network because the persistent link bit rates may depend on the initial link loads. As an example, we consider throughput and stability of the reverse link in a cellular system, i.e., from mobiles to the base station. A reverse link is described by a single fixed point equation regardless of the number of mobiles.
Effect of Piezoresistors Self-heating on output Characteristics of Pressure Transducer based on SOI Structure

Silicon pressure transducers based on SOI-structure have several important advantages, such as high measuring performance, small dimensions and weight, low production cost. Moreover these transducers naturally have extended temperature range that is vital for a number of important applications in such areas as oil and gas industry, high speed vacuum tube transportation, space engineering. The paper investigates the influence of piezoresistors self-heating due to the current flow on the main characteristics of the transducer. Finite element modeling is chosen as a calculation approach due to the structural complexity of SOI-based pressure transducers. The modeling shows that local heating of the transducer structure leads to changes in some key parameters like the piezoresistor resistance and the main strain coefficients. To study the self-heating effect of piezoresistors, the main characteristics of the pressure transducer were calculated depending on the scaling factor. According to the analysis results the critical membrane thickness, where insufficient heat sink appears is 10 μm.
A Modified Adaptive Delta Modulator

This paper presents the results of a study in data compression of adaptive delta modulated video signals. The Song mode ADM is first investigated at a sampling rate of 16 Mbits/s and shown not to produce enough redundancy to warrant entropy encoding. We then present a modified adaptive delta modulator algorithm that operates at a sampling rate of 16 Mbits/s and does produce sufficient redundancy to yield a 40-50 percent data compression by using a simple code on 4 bit data blocks. Other techniques such as field interpolation and direct substitution are shown to increase the possible data compression further without noticeable degradation in the two input images used in this investigation. The effects of channel errors in the transmission of packet video over a computer network are considered. A leaky integrator is used to reduce the effects of channel errors in the data bits. We show that the effects of channel errors can be reduced by field interpolating those packets that can be shown to contain errors.
Estimation of Attrition Biases in SIPP

This paper studies estimators for the bias in estimated cross-sectional survey item totals due to attrition nonresponse weighting within a longitudinal survey. Adjustments for between-sample longitudinal nonresponse are made either by adjustment cells or by logistic regression. The bias estimators studied were first proposed by Bailey (2004) in connection with the Census Bureau’s Survey of Income and Program Participation (SIPP), but are generalized here to include longitudinal survey items, and formulas and estimators for their design-based variances are given in terms of joint inclusion probabilities. In practice, variance estimates for the bias estimators are obtained, in the SIPP setting where PSU samples are drawn as balanced half-sample replicates, using either balanced replication methods or a formula of Ernst, Huggins and Grill (1986). The methods are illustrated using crosssectional item data from the SIPP 1996 panel.
Regime Switches in Swedish Interest Rates March 4

This paper examines the forecasting properties of a Markov regime-switching model applied to Swedish interest rate volatility. A Monte Carlo testing procedure is used to arrive at a three state specification that is able to capture the high degree of leptokurtosis in the data without additional modelling of conditional heteroskedasticity. The final specification is shown to possess good forecasting properties both in general and for specific samples and horizons, something that the benchmark processes are unable to achieve.
OPENNESS FOR SERVICE INNOVATION THROUGH KNOWLEDGE CREATION

The present study adopts a technology–organization–environment framework to discuss the effects of company openness on service innovation. The role of knowledge creation is proposed as a mediating factor in the relationship between openness and service innovation. We suggested that openness has a positive effect on knowledge creation which, in turn, has a positive effect on service innovation. Knowledge creation plays a mediating role in the relationship between company openness and service innovation.
Performance Improvement of Single-Phase Transformer less Grid-Connected PV Inverters Regarding the CMV and LVRT

AbstractThe single-phase transformerless grid-connected photovoltaic (PV) systems, mainly the low-power singlephase systems, requires high efficiency, small size, lightweight, and low-cost grid-connected inverters. However, problems such as leakage current, the DC current injection and safety issues are incorporated with transformerless grid-connected PV inverters. Besides, the new standards such as low-voltage ride-through (LVRT) capability and staying connected to the grid during the fault occurrence should be considered for the next generation of transformerless PV inverters. In this paper, a study is going underway on the LVRT capability and the Common-Mode Voltage (CMV) in a number of most common transformerless grid-connected PV inverters. In fact, by a comprehensive study on all possible switching combinations and the current paths during the freewheeling period of the selected inverters, the proposed control strategy for performance improvement of the PV inverters under the normal and the LVRT conditions is presented. As a matter of fact, a reconfigurable PWM method is proposed, which makes it possible to switch between two PWM methods and hence provide improved performance of the inverters in the LVRT condition. Finally, the results of simulations in the normal and the LVRT operations to verify the theoretical concepts are indicated.
The linguistic disadvantage of scholars who write in English as an additional language: Myth or reality

Academics are coming under increasing pressure to publish internationally. Given the global dominance of English, this very likely means publishing in English-medium journals and with publishers which publish in English. This raises the important question of the possible disadvantage of those scholars whose first language is not English and who therefore have the additional burden of having to develop adequate proficiency in an additional language, English. As a student of modern languages to university level and of other languages to rather lower levels of proficiency and as a teacher of English for academic purposes (EAP) and of English for research and publication purposes (ERPP), since I became aware of this issue, I have always believed this extra burden on the English as an additional language (EAL) academic writer to be a self-evident truth. Ken Hyland, however, in a recent book (Hyland, 2015) and an article titled ‘Academic publishing and the myth of linguistic injustice’ (Hyland, 2016a), has taken it upon himself to argue that such an assumption is ill-founded. Hyland argues that native-speakers (NSs) of English encounter the same difficulties as non-native speakers (NNSs) when it comes to academic writing, that ‘academic English is no one's first language’, and that it requires ‘deliberate learning’ by both NSs and NSs (p. 57). Native and non-native writers, Hyland implies, are on a level playing field when it comes to writing for publication, both groups having to jump the same hurdles.
The first-perspective alignment effect : spatial memories from verbal descriptions, virtual environments and object arrays.

Fourteen experiments investigate the ‘first-perspective alignment effect’ (FPA), a novel finding that people sometimes encode a space preferentially in alignment with the first perspective they encounter. In Experiments 1-6, participants read verbal descriptions of three-path routes. A map-drawing task in Experiment 1 suggested that spatial memories are egocentrically encoded on the basis of forward-up equivalence. In Experiments 3 and 4, when a salient landmark was described in relation to the start orientation of the routes, orientation estimates to remembered test locations were most accurate when participants imagined themselves aligned, rather than 180° contra-aligned, with the first part of the route. However, in Experiments 5 and 6 the introduction of allocentric cardinal terms systematically affected the text FPA. Participants in Experiment 7 explored two versions of VEs based on the text descriptions used in Experiments 2-6. The FPA was found following the first VE exploration, but following the second VE exploration, the effect was attenuated. Experiment 8 omitted the alignment tests after the first VE, leading to similar results to those in the first test of Experiment 7, suggesting that prior experience of making orientation judgements in the first test of Experiment 7 had attenuated the FPA. Experiment 9 used a text-based procedure, in which participants were asked to make active spatial judgements after reading each section of the route, and the FPA was not found. Experiments 10-14 extended the above findings to learning about arrays of static objects from primary experience. In Experiment 10, when participants viewed an array of four objects from four perspectives, orientation judgements were similar for all perspectives. When arrays were viewed from two perspectives that were 0 and 90° (Experiment 11), and 0 and 180° (Experiment 12) misaligned from the centre of the array, no evidence for FPA encoding was found. The absence of this effect following primary, but not secondary learning Experiments 2-9; Wilson, 2001), was further investigated in Experiments 13 and 14, in which participants viewed the arrays under conditions of observer movement and display rotation. No evidence for FPA encoding was found; therefore, the presence of vestibular feedback in the primary case, does not explain differences in encoding between primary and secondary learning sources. The results are discussed in terms of spatial reference frames and spatial anchor points, and suggest that the FPA effect is the default form of encoding in spatial memory under some circumstances.