LLukas22/scidocs huggingface dataset:
A Virtual Change Agent: Motivating Pre-service Teachers to Integrate Technology in Their Future Classrooms

In this paper, we develop a conceptual framework for an anthropomorphic change agent to motivate pre-service teachers to integrate technology into teaching and learning. This agent is designed with a hybrid persona that simulates a mentor and plays both motivation and companion roles. Based on the theoretical grounding in motivation and change agency and related research, we propose that a computer-based change agent will impact pre-service teachers’ attitudes toward technology integration and improve their abilities to be effective users of educational technology. The impact on learning and instruction is explained as a process of changing perceptions and concerns about the value of using technology to support their learning. We build on models of innovation-decision processes and attributes of adoption of innovation and concern-based adoption. Practical considerations for the design of a virtual change agent are provided with respect to appearance, voice and emotional expression. Further research is also discussed, especially regard to empirical validation of specific components of the framework and longitudinal studies of teacher attitudes.
A rare and frequently unrecognised pathology in children: femoral hernia

A femoral hernia is the protrusion of the abdominal contents through the femoral canal. It accounts for less than 1% of all groin hernias in children and is often confused with inguinal hernia or other inguinal pathologies. Preoperative misdiagnosis has been reported to be between 40 and 75%. We believe that misdiagnosis and mistreatment usually occur due to insufficient physical examination, knowledge and experience about childhood femoral hernias. Here, we report and discuss the clinical appearance and treatment approach of three patients operated with the diagnosis of femoral hernias.
Untreated severe dental decay: a neglected determinant of low Body Mass Index in 12-year-old Filipino children

BACKGROUND
Dental decay is the most common childhood disease worldwide and most of the decay remains untreated. In the Philippines caries levels are among the highest in the South East Asian region. Elementary school children suffer from high prevalence of stunting and underweight.The present study aimed to investigate the association between untreated dental decay and Body Mass Index (BMI) among 12-year-old Filipino children.


METHODS
Data collection was part of the National Oral Health Survey, a representative cross-sectional study of 1951 11-13-year-old school children using a modified, stratified cluster sampling design based on population classifications of the Philippine National Statistics Office. Caries was scored according to WHO criteria (1997) and odontogenic infections using the PUFA index. Anthropometric measures were performed by trained nurses. Some socio-economic determinants were included as potential confounding factors.


RESULTS
The overall prevalence of caries (DMFT + dmft > 0) was 82.3% (95%CI; 80.6%-84.0%). The overall prevalence of odontogenic infections due to caries (PUFA + pufa > 0) was 55.7% (95% CI; 53.5%-57.9%) The BMI of 27.1% (95%CI; 25.1%-29.1%) of children was below normal, 1% (95%CI; 0.5%-1.4%) had a BMI above normal. The regression coefficient between BMI and caries was highly significant (p < 0.001). Children with odontogenic infections (PUFA + pufa > 0) as compared to those without odontogenic infections had an increased risk of a below normal BMI (OR: 1.47; 95% CI: 1.19-1.80).


CONCLUSIONS
This is the first-ever representative survey showing a significant association between caries and BMI and particularly between odontogenic infections and below normal BMI. An expanded model of hypothesised associations is presented that includes progressed forms of dental decay as a significant, yet largely neglected determinant of poor child development.
SDCA without Duality, Regularization, and Individual Convexity

Stochastic Dual Coordinate Ascent is a popular method for solving regularized loss minimization for the case of convex losses. We describe variants of SDCA that do not require explicit regularization and do not rely on duality. We prove linear convergence rates even if individual loss functions are non-convex, as long as the expected loss is strongly convex.
TiO2 nanotubes: synthesis and applications.

TiO(2) is one of the most studied compounds in materials science. Owing to some outstanding properties it is used for instance in photocatalysis, dye-sensitized solar cells, and biomedical devices. In 1999, first reports showed the feasibility to grow highly ordered arrays of TiO(2) nanotubes by a simple but optimized electrochemical anodization of a titanium metal sheet. This finding stimulated intense research activities that focused on growth, modification, properties, and applications of these one-dimensional nanostructures. This review attempts to cover all these aspects, including underlying principles and key functional features of TiO(2), in a comprehensive way and also indicates potential future directions of the field.
Computing Randomized Security Strategies in Networked Domains

Traditionally, security decisions have been made without explicitly accounting for adaptive, intelligent attackers. Recent game theoretic security models have explicitly included attacker response in computing randomized security policies. Techniques to date, however, generally fail to explicitly account for interdependence between the targets to be secured, which is of vital importance in a variety of domains, including cyber, supply chain, and critical infrastructure security. We introduce a novel framework for computing optimal randomized security policies in networked domains which extends previous approaches in two ways. First, we extend previous linear programming techniques for Stackelberg security games to incorporate benefits and costs of arbitrary security configurations on individual assets. Second, we offer a principled model of failure cascades that allows us to capture both the direct and indirect value of assets. Finally, we use our framework to analyze four models, two based on random graph generation models, a simple model of interdependence between critical infrastructure and key resource sectors, and a model of the Fedwire interbank payment network.
Mediate effect of technology innovation capabilities investment capability and firm performance in Vietnam

Under the context of globalization and international economic integration today, Vietnam enterprises’ existence and development depends on competitive advantage. Technological innovation capabilities (TICs) are the fundamental supports and decisive factors of competitive advantage, the modern enterprise’s existence and development depend on the knowledge and technology’s innovation and application. Researchers widely recognized that TICs are still limited in Vietnam. Hence, enterprises are required to invest TICs in order to survive and achieve a goal for global market. However, while many assume that the relationship between investment capability and TICs is not clear how investment capability affects TICs, or how to what this relationship affect competitive performance of firm. Therefore, the main of objective of this present study is to understand the way in which investment capability (IT) of the industry on TICs at the level of its firm, affects the efficiency and the potential of Vietnam enterprises that have to gain their competitive advantage. Based on a survey of manufacturing firms in Vietnam, the study identified that Vietnam enterprise are required to invest to enhance seven dimensions of TICs learning, R&D, resource allocation, manufacturing, market, organizational, and strategic planning capabilities. Moreover, the research utilizes a regression analysis to demonstrate that investment capability can lead directly competitive performance through
POQLMM: A Query Language for Structured Multimedia Documents

An important research issue with multimedia databases is the formulation of queries to the database. Here the search for structured multimedia documents or relevant parts of it gains more and more significance. Unfortunately text retrieval on its own is not sufficient for the realization of capable search services in this respect. Therefore, an efficient combination of automatic text retrieval, retrieval in meta data and content based retrieval on structured multimedia documents is needed. In the present paper we propose POQL as a general purpose query language for an object oriented multimedia database, which supports the combination of text retrieval, content-based retrieval for other media types and traditional fact retrieval on structured multimedia documents. To this end, we describe the significant features of POQL and point out the applicability of POQL by means of some query examples.
Web 2.0: blind to an accessible new world

With the advent of Web 2.0 technologies, websites have evolved from static pages to dynamic, interactive Web-based applications with the ability to replicate common desktop functionality. However, for blind and visually impaired individuals who rely upon screen readers, Web 2.0 applications force them to adapt to an inaccessible use model. Many technologies, including WAI-ARIA, AJAX, and improved screen reader support, are rapidly evolving to improve this situation. However, simply combining them does not solve the problems of screen reader users. The main contributions of this paper are two models of interaction for screen reader users, for both traditional websites and Web 2.0 applications. Further contributions are a discussion of accessibility difficulties screen reader users encounter when interacting with Web 2.0 applications, a user workflow design model for improving Web 2.0 accessibility, and a set of design requirements for developers to ease the user's burden and increase accessibility. These models, accessibility difficulties, and design implications are based directly on responses and lessons learned from usability research focusing on Web 2.0 usage and screen reader users. Without the conscious effort of Web engineers and designers, most blind and visually impaired users will shy away from using new Web 2.0 technology in favor of desktop based applications.
Asymptotic waveform evaluation for timing analysis

For digital system designs the propagation delays due to the physical interconnect can have a significant, even dominant, impact on performance. Timing analyzers attempt to capture the effect of the interconnect on the delay with a simplified model, typically an RC tree. For mid-frequency MOS integrated circuits the RC tree methods can predict the delay to within 10 percent of a SPICE simulation and at faster than lOOOx the speed. With continual progress in integrated circuit processing, operating speeds and new technologies are emerging that may require more elaborate interconnect models. Digital bipolar and high-speed MOS integrated systems can require interconnect models which contain coupling capacitors and inductors. In addition, to enable timing verification at the printed circuit hoard level also requires general RLC interconnect models. Asymptotic Waveform Evaluation (AWE) provides a generalized approach to linear RLC circuit response approximations. The RLC interconnect model may contain floating capacitors, grounded resistors, inductors, and even linear controlled sources. The transient portion of the response is approximated by matching the initial boundary conditions and the first 2q-1 moments of the exact response to a lower order q-pole model. For the case of an RC tree model a first-order AWE approximation reduces to the RC tree methods.
Neuropsychological Issues in the Assessment of Refugees and Victims of Mass Violence

Brain injury, stressor severity, depression, premorbid vulnerabilities, and PTSD are frequently intertwined in trauma populations. This interaction is further complicated when the neuropsychologist evaluates refugees from other cultures. In addition, the observed psychiatric symptoms reported in refugees and victims of mass violence may in fact not be the primary features of PTSD and depression but psychiatric symptoms secondary to the effects of traumatic brain injury. This paper reviews the occurrence of starvation, torture, beatings, imprisonment, and other head injury experiences in refugee and POW populations to alert treators to the presence of chronic and persistent neuropsychiatric morbidity, with implications for psychosocial adjustment. The concept of fixed neural loss may also interact with environmental and emotional stresses, and a model of neuropsychological abnormalities triggered by traumatic events and influenced by subsequent stress will also be considered. Neuropsychologists working with refugees play an important role in assessing the possibility of traumatic brain injury with tools that are relatively culture-fair.
Simulation Tools for Power Electronics Courses Based on Java Technologies

This paper presents interactive power electronics educational tools. These interactive tools make use of the benefits of Java language to provide a dynamic and interactive approach to simulating steady-state ideal rectifiers (uncontrolled and controlled; single-phase and three-phase). Additionally, this paper discusses the development and use of Java applet programs to assist the teaching of conventional power electronics rectifier circuits and to serve as a first design tool for basic laboratory experiments in power electronics courses. Comparison was made among results obtained using a well-known simulator package, experimental results, and the developed interactive simulation applets in order to validate the latter.
Filgrastim-mobilized peripheral blood progenitor cells versus bone marrow transplantation for treating leukemia: 3-year results from the EBMT randomized trial.

BACKGROUND AND OBJECTIVES
Allogeneic peripheral blood progenitor cells (PBPC) are now widely used as the source of hematopoietic stem cells for transplantation. However, it is still not clear which patients should receive mobilized PBPC or bone marrow cells to reconstitute hematopoiesis after myeloablative conditioning. The aim of this study is to present 3-year-follow-up data on outcome (incidence and severity of chronic graft-versus-host disease (GVHD), overall survival (OS) and leukemia-free survival (LFS) after a PBPC transplant (PBPCT) or a bone marrow transplant (BMT).


DESIGN AND METHODS
Data on 350 patients with leukemia were collected in a multicenter, randomized study initiated by the EBMT. The patients were randomized to receive filgrastim-mobilized PBSCT or BMT from an HLA-identical donor.


RESULTS
At a median follow-up of 3 years, significantly more patients transplanted with PBPC than with bone marrow developed chronic GVHD (73% vs 55%, p=0.003) and extensive chronic GvHD (36% vs 19%, p=0.002). The higher incidence and greater severity of chronic GvHD had little impact on the patient's performance status or survival. OS was 58% for PBPCT recipients versus 65% among those undergoing BMT. LFS was 56% for PBPCT recipients versus 60% for BMT recipients.


INTERPRETATION AND CONCLUSIONS
Patients transplanted with PBPC from an HLA-identical sibling develop more chronic GvHD than those transplanted with bone marrow, but the final impact of this difference is unclear. Longer follow-up is necessary to characterize the impact of chronic GvHD on quality of life, leukemia-free survival and overall survival.
Information Technology Project Management

Objectives: The student who successfully completes this course. 1. Understand the genesis of project, program, and portfolio management and their importance to enterprise success. 2. Describes the various approaches for selecting projects, programs, and portfolios. 3. Demonstrates knowledge of project management terms and techniques, such as: • The triple constraint of project management • The project management knowledge areas and process groups • The project life cycle • Tools and techniques of project management, such as:  Project selection methods  Work breakdown structures  Network diagrams, critical path analysis, and critical chain scheduling  Cost estimates  Earned value management  Motivation theory and team building 4. Applies project management concepts by working on a group project as a project
Additively Manufactured Open-Cell Porous Biomaterials Made from Six Different Space-Filling Unit Cells: The Mechanical and Morphological Properties

It is known that the mechanical properties of bone-mimicking porous biomaterials are a function of the morphological properties of the porous structure, including the configuration and size of the repeating unit cell from which they are made. However, the literature on this topic is limited, primarily because of the challenge in fabricating porous biomaterials with arbitrarily complex morphological designs. In the present work, we studied the relationship between relative density (RD) of porous Ti6Al4V EFI alloy and five compressive properties of the material, namely elastic gradient or modulus (Es20-70), first maximum stress, plateau stress, yield stress, and energy absorption. Porous structures with different RD and six different unit cell configurations (cubic (C), diamond (D), truncated cube (TC), truncated cuboctahedron (TCO), rhombic dodecahedron (RD), and rhombicuboctahedron (RCO)) were fabricated using selective laser melting. Each of the compressive properties increased with increase in RD, the relationship being of a power law type. Clear trends were seen in the influence of unit cell configuration and porosity on each of the compressive properties. For example, in terms of Es20-70, the structures may be divided into two groups: those that are stiff (comprising those made using C, TC, TCO, and RCO unit cell) and those that are compliant (comprising those made using D and RD unit cell).
Grafting techniques for Peyronie’s disease

Peyronie's disease (PD) is a benign fibrotic condition of the penile tunica albuginea. PD can be associated with penile pain, curvature, shortening, and erectile dysfunction (ED). The predominant and most bothersome symptom in affected patients is penile curvature, which can lead to inability to have sexual intercourse. In such cases, surgical correction of the curvature may be required. Plication techniques to correct curvature can cause penile shortening and therefore are generally reserved for curvatures <60°. Penile prosthesis implantation with simultaneous correction of curvature by various means is recommended in PD patients with ED not responding to medical therapy. Grafting techniques are the preferred surgical treatment in patients with penile curvatures >60°, short penis, or hourglass deformity. Patients scheduled for grafting surgery are required to have satisfactory erectile rigidity preoperatively. There are various grafting materials that can be used for closure of the tunica albuginea defect following plaque incision/excision. Both autologous and non-autologous grafts have been used for PD reconstructive surgery, and each graft has its advantages and disadvantages. Novel grafting materials are presented and discussed in this review. A major advantage of the available "off-the-shelf" grafts is that there is no harvesting from a donor site and, thus, morbidity is reduced, and operative times are minimized. Further investigations in regard to tissue-engineered grafts to improve surgical handling and postoperative outcomes are ongoing. Surgeon experience, careful patient selection, patient preference and type of penile deformity affect the choice of graft. This review summarizes the literature within the past 5 years regarding grafting techniques in PD. Surgical outcomes and limitations of grafting techniques are reported. A major objective of this review is dedicated to preoperative considerations and indications for grafting procedures, with the aim to improve surgical outcomes and increase patient satisfaction. Proper postoperative management of patients after incision/excision and grafting is important to avoid early and long-term complications and unwanted outcomes. This review provides an overview of recent advances and recommendations in regard to rehabilitation strategies after grafting procedures. Adequate preoperative patient counseling, careful patient selection, appropriate indications, and postoperative management is key to optimal surgical outcomes with high satisfaction rates after grafting techniques in PD surgery.
Towards clinical bioinformatics: advancing genomic medicine with informatics methods and tools.

OBJECTIVES
To summarize the challenges facing clinical applications in the light of growing research results in genomic medicine and bioinformatics.


METHODS
Analysis of the contents of the Yearbook of Medical Informatics 2004 of the International Medical Informatics Association (IMIA).


RESULTS
The Yearbook of Medical Informatics 2004 includes 32 articles selected from 22 peer-reviewed scientific journals. A special section on clinical bioinformatics highlights recent developments in this field. Several guest editors review the promises and limitations of available methods and resources from biomedical informatics that are relevant to clinical medicine. Integrated data and knowledge resources are generally regarded to be central and key issues for clinical bioinformatics. Further review papers deal with public health implications of bioinformatics, knowledge management and trends in health care education. The Yearbook includes for the first time a section on the history of medical informatics, where the significant impact of the Reisensburg protocol 1973 on international health and medical informatics education is examined.


CONCLUSIONS
Close collaboration between bioinformatics and medical informatics researchers can contribute to new insights in genomic medicine and contribute towards the more efficient and effective use of genomic data to advance clinical care.
Cognitive Cellular Systems within the TV Spectrum

We propose a network architecture that enables spectrum sharing between a primary TV broadcast system and a secondary cellular broadband system. To compensate for the interference caused by overlay transmissions, the cognitive cellular base station cooperates with the TV system. We base our encoding approach on prior theoretical results and demonstrate how the cognition can be enabled in the TV spectrum. We show the performance gains of the proposed overlay approach for both the downlink and uplink of the cellular system. While the proposed approach requires that a cellular base station spends a part of its power to cooperate with the TV system, at the same time, it opens up frequency bands with favorable propagation properties, otherwise unavailable to cellular systems. This approach can thus bring benefits to both cellular and TV network operators in terms of performance and increased capacity.
Interdependent components of web accessibility

Increasingly, the Web is providing unprecedented access to information and interaction for people with disabilities. However, the Web will not be equally accessible, allowing people with disabilities to access and contribute to the Web, until:• Authoring tools and development environments (including content managements systems such as blogging applications) produce accessible Web content and have accessible interfaces;• Browsers, multimedia players and assistive technologies provide a completely usable and accessible experience;Content is designed to be accessible.Web accessibility relies on tools that are designed to work together and support the needs of the people who use them. This paper describes how Web accessibility depends on several components working together. It demonstrates the relationship between the World Wide Web Consortium (W3C) Web Accessibility Initiative (WAI) guidelines: Web Content Accessibility Guidelines (WCAG), Authoring Tool Accessibility Guidelines (ATAG), and User Agent Accessibility Guidelines (UAAG).