Miracle-dz/UniFAR-FTUs huggingface dataset:
Traceable document flows

Ad hoc data exchange, e.g., by sending email attachments, leads to multiple copies or versions of a document at dispersed nodes in a network. However, their relationships such as is-a-version-of are lost. The relationships between a single document's existing versions together with the versions themselves form a so-called document flow, which allows to trace where a document originated and how it was distributed from node to node. The paper proposes an ontological, machine-processable framework for semantically describing and thus revealing document flows. The presented approach provides a light-weight communication infrastructure for information exchange and collaboration that is based on distributed versioning of documents and offers flexible document annotation mechanisms. After describing our infrastructure model, we present the implemented prototype and discuss a range of application scenarios for traceable document flows (TDFs).
A Flexible Scene Representation for 3D Reconstruction Using an RGB-D Camera

Updating a global 3D model with live RGB-D measurements has proven to be successful for 3D reconstruction of indoor scenes. Recently, a Truncated Signed Distance Function (TSDF) volumetric model and a fusion algorithm have been introduced (KinectFusion), showing significant advantages such as computational speed and accuracy of the reconstructed scene. This algorithm, however, is expensive in memory when constructing and updating the global model. As a consequence, the method is not well scalable to large scenes. We propose a new flexible 3D scene representation using a set of planes that is cheap in memory use and, nevertheless, achieves accurate reconstruction of indoor scenes from RGB-D image sequences. Projecting the scene onto different planes reduces significantly the size of the scene representation and thus it allows us to generate a global textured 3D model with lower memory requirement while keeping accuracy and easiness to update with live RGB-D measurements. Experimental results demonstrate that our proposed flexible 3D scene representation achieves accurate reconstruction, while keeping the scalability for large indoor scenes.
An ontology-based question answering method with the use of textual entailment

This paper presents a new method for ontology-based Question Answering (QA) with the use of textual entailment. In this method, a set of question patterns, called hypothesis questions, was automatically produced from a domain ontology, along with their corresponding SPARQL query templates for answer retrieval. Then the QA task was reduced to the problem of looking for the hypothesis question that was entailed by a user question and taking its corresponding query template to produce a complete query for retrieving the answers from underlying knowledge bases. An entailment engine was used to discover the entailed hypothesis questions with the help of question classification. An evaluation was carried out to assess the accuracy of the QA method, and the results revealed that most of the user questions (65%) can be correctly answered with a semantic entailment engine enhanced by the domain ontology.
Syndromes of Schizophrenia

In their classic descriptions of the illness that came to be called schizophrenia, Kraepelin and Bleuler presented it as a persistent illness characterised by fragmentation of mental function. In particular, Bleuler regarded clinical features such as loosening of associations and blunted affect as fundamental, and more transient features such as hallucinations and delusions as accessory. However, in the subsequent quest for greater reliability of diagnosis, Schneider attributed special importance to certain hallucinations and delusions that are common in schizophrenia and rare in other disorders. The focus on hallucinations and delusions was reinforced by the success of dopamine-blocking drugs in alleviating these symptoms. The efficacy of dopamine-blocking drugs became the central buttress supporting the hypothesis that schizophrenia is a neurohumoral disorder involving excessive dopaminergic neurotransmission. Despite the success of dopamine blocking drugs, many patients remained seriously disabled, their lives fragmented by persistent Bleulerian symptoms. A new concept of the illness was required. On the basis of work by his team at Northwick Park Hospital in the 1970s, Crow (1980) advanced his two-syndrome model. He proposed that there are two major dimensions of psychopathology in schizophrenia: type I, comprising positive symptoms, such as delusions, hallucinations and formal thought disorder, that tend to be transient; and type II, comprising negative symptoms such as poverty of speech and blunted affect that tend to persist. He proposed that these two syndromes reflect two dimensions of pathophysiology: a neurohumoral disturbance generating the type I syndrome, and structural cerebral abnormality generating the type II syndrome. Crow's concept of negative symptoms focused on poverty of speech and blunted affect, deficiencies in mental activity that can be assessed in a clinical interview. However, many patients suffering persistent disability in daily life exhibit neither poverty of speech nor blunted affect of marked degree. Should the negative syndrome be more broadly defined? Andreasen (1982) provided a broader concept of the negative syndrome and also a comprehensive rating scale, the Scale for the Assessment of Negative Symptoms (SANS), which comprises five subscales: blunted affect; alogia; avolition; anhedonia; and attentional impairment. Many of the items, especially in the avolition and anhedonia subscales, are scores of reported performance in daily life. SANS embodies a broader concept of negative symptoms, but is it too broad? A variety of factors might impede performance in daily life. A decade later, as we look back on these papers by Crow and by Andreasen, several questions must be answered. Do the symptoms of schizophrenia segregate into two distinct syndromes, and if so, how broad should the concept of negative symptoms be? Does the evidence support the proposal that negative symptoms arise from abnormal cerebral structure while positive symptoms reflect dopaminergic imbalance?
Privacy Concerns in Online Recommender Systems: Influences of Control and User Data Input

systems (e.g., Amazon.com) provide users with tailored products and services, which have the potential to induce user privacy concerns. Although system designers have been actively developing algorithms to introduce user control mechanisms, it remains unclear whether such control is effective in alleviating privacy concerns. It also is unclear how data type affects this relationship. To determine the psychological mechanisms of user privacy concerns in a recommender system, we conducted a scenario-based online experiment (N = 385). Users' privacy concerns were measured in relation to different data input (explicit vs. implicit) and control (present vs. absent) scenarios. Results show that a control mechanism can effectively reduce users' concerns over implicit user data input (i.e., purchase history) but not over explicit user data input (i.e., product ratings). We also demonstrate that control can influence privacy concerns via users' perceived value of disclosure. These findings question the effectiveness of user control mechanisms in recommender systems with explicit data input. Additionally, our item categorization provides a reference for future personalized recommendations and future analyses.
Determinants of maxillary canine impaction: Retrospective clinical and radiographic study

Background The aim of this study is to evaluate determinants of maxillary canine impaction taking into account both canine position related variables and the pattern of facial growth. Material and Methods A retrospective clinical and radiographic analysis was carried out on 109 patients aged between 9 and 10 years at the time of first evaluation. At baseline, SN-GoMe angle, the interincisal angle, the canine angle α and the canine distance d were used to characterize canine location and vertical facial growth. At the end of a two years follow up period the eruption state of each canine of each patient was recorded and accordingly classified as erupted or impacted on a clinical and radiographic basis. Univariate and multivariate statistical analyses were performed, including correlation among the studied variables and principal components analysis; several machine learning methods were also used in order to built a predictive model. Results At the end of the two years follow up period after the first examination, 54 (24.77%) canines were classified as impacted. Except for Angle α values, there were no statistically significant differences between impacted and erupted canines. The studied variables were not significantly correlated, except for the SN-GoMe Angle and the distance d in the impacted canine group and the angle α and the distance d in erupted canines group. All variables, except for SN-GoMe Angle in erupted canines, have a partial communality with the first two principal components greater than 50%. Among the learning machine methods tested to classify data, the best performance was obtained by the random forest method, with an overall accuracy in predicting canine eruption of 88.3%. Conclusions The studied determinants are easy to perform measurements on 2D routinely executed radiographic images; they seems independently related to canine impaction and have reliable accuracy in predicting maxillary canine eruption. Key words:Canine impaction, Determinants, Facial growth.
A Novel Elliptic curve cryptography Processor using NoC design

In this paper, we propose an elliptic curve key generation processor over GF(2 m ) and GF(P) with Network-on-Chip (NoC) design scheme based on binary scalar multiplication algorithm. Over the Two last decades, Elliptic Curve Cryptography (ECC) has gained increasing acceptance in the industry and the academic community. This interest is mainly caused by the same level of security with relatively small keys provided by ECC comparing to large key size in Rivest Shamir Adleman (RSA). Parallelism can be utilized in different hierarchy levels as shown in many publications. By using NoC, a new method with the reduced latency of point multiplication (with parallel field arithmetic) is introduced in this paper.
Biometrics based novel key distribution solution for body sensor networks

The security of wireless body sensor network (BSN) is very important to telemedicine and m-healthcare, and it still remains a critical challenge. This paper presents a novel key distribution solution which allows two sensors in one BSN to agree on a changeable cryptographic key. A previously published scheme, fuzzy vault, is firstly applied to secure the random cryptographic key generated from electrocardiographic (ECG) signals. Simulations based on ECG data from MIT PhysioBank database, produce a minimum half total error rate (HTER) of 0.65%, which demonstrates our key distribution solution is promising compared with previous method, with HTER of 4.26%.
Milliarcsecond-Scale Structure in the Gamma-Ray Loud Quasar PKS 1622−297

We made a high-resolution VLBI observation of the gamma-ray loud quasar PKS 1622−297 with the HALCA spacecraft and ground radio telescopesat 5GHz in 1998 February, almost 3yr after the source exhibited a spectacular GeV gamma-ray flare. The source shows an elongated structure toward the west on the parsec scale. The visibility data are well modeled by three distinct components: a bright core and two weaker jet components. Comparison with previous observations confirms that the jet components have an apparent superluminal motion up to 12.1 h −1 c, with the inner jet components having lower superluminal speeds. We applied the inverse Compton catastrophe model and derived a Doppler factor, δ, of 2.45, which is rather lower than those of other gamma-ray loud active galactic nuclei (AGNs), suggesting that the source was in a more quiescent phase at the epoch of our observation. As an alternative probe of the subparsec-scale structure, we also present the results from multiepoch ATCA total flux monitoring, which indicate the presence of persistent intraday variability consistent with refractive interstellar scintillation. We examined the gamma-ray emission mechanism in light of these observations.
How Do Donor-Recipient CMV Serostatus and Post-Hematopoietic Stem Cell Transplantation CMV Reactivation Affect Outcomes in Acute Leukemia Patients?

Background: This study evaluated CMV serostatus in donors and recipients of hematopoietic stem cell transplantation (HSCT) and its effects on CMV reactivation of patients and all aspects of CMV on HSCT outcomes. Materials and Methods: Seven hundred and five adult acute leukemia patients (AML=408 and AML=297) who had undergone HSCT were included in this retrospective study. We categorized donor-recipient pairs in three risk groups: positive donors (D+) were studied as high-risk group, including either R+ or R-(n=485), R-D- as low-risk group (n=32) and R+D- as intermediate group (n=15). Results: There was no statistically difference in CMV reactivation among these risk groups (P=0.14). CMV infection rate was lower in R+D+ than R+D-(p=0.050). Multivariate analysis showed that patients developing CMV infection had lower overall survival (p=0.04, HR: 1.43, CI=1.00- 2.05) and higher non- relapse mortality (P=0.01, HR: 1.62, CI=1.11-2.38). Relapse rate did not change in CMV reactivated patients (P=0.94). Conclusion: The results of the study indicated that asCMV reactivation occurred more in R+D- patients compared to R+D+ ones, and was associated with inferior OS and higher NRM it could be suggested that in contrast to general belief, if the recipient is seropositive , seropositive donor is preferred to a seronegative one.
Performance analysis of relay selection schemes in underlay cognitive networks with imperfect channel state information

Cognitive Radio (CR) aims to improve spectrum utilization by allowing unlicensed users to access the licensed spectrum and to coexist with primary user (PU) while respecting the PU's restrictions. An interesting case to consider in underlay CR is when the channel state informations (CSI) of the links between secondary users (SUs) or between SUs and PU are imperfect. In fact, due to feedback or scheduling delays, in practice, the relay and/or the source node can have outdated channel state information. This outdated information will cause a performance degradation. In this paper, its impact on relay selection schemes and PU are investigated. To evaluate the impact of imperfect CSI on the secondary network, closed form expressions of the bit error rate (BER), the outage probability and the ergodic capacity are derived. Additionally, we investigate how harmful imperfect CSI can be on the PU's side. The theoretical results obtained in this work are confirmed through simulations.
Endocrine responses to overreaching before and after 1 year of weightlifting.

Nine elite male junior weightlifters (mean age 17.6 +/- 0.3 yrs) performed weightlifting tests before (Test 1) and after (Test 2) 1 week of increased training volume (overreaching) and repeated the protocol after 1 year of their training program. Strength increased by Year 2 (p < 0.05) but did not change during either week of increased training volume. The 1-week overreaching stimulus resulted in attenuated exercise-induced testosterone concentrations during Year 1, but augmented exercise-induced testosterone concentrations during Year 2. Testosterone concentrations at 7 a.m. decreased for only Year 1. For both years, the 1-week overreaching stimulus increased cortisol at 7 a.m, indicative of the increased training volumes. Testosterone/cortisol was not affected by increased training volume for either year. One year of chronic weightlifting and prior exposure to the overreaching stimulus appears to decrease the detrimental effects of stressful training on the endocrine system.
Quantitative shear wave magnetic resonance elastography: Comparison to a dynamic shear material test

Magnetic resonance elastography (MRE), a phase contrast MRI technique, images the propagation of applied mechanical waves in tissue, allowing shear stiffness to be quantified in vivo. This MRE technique has been validated with static mechanical compression tests. Dynamic mechanical analysis (DMA) may be a more appropriate comparison to MRE because it directly measures the shear modulus dynamically, while compression tests convert the measured elastic modulus to shear modulus with an assumed Poisson ratio. This study compared the shear stiffness estimated with various MRE inversion algorithms (i.e., manual calculation, local frequency estimate, phase gradient, direct inversion, and matched filter) to the dynamic mechanical test. The shear stiffness of five agarose gels with concentrations ranging from 1.5 to 3.5% were measured using MRE and DMA. The phase gradient inversion algorithm overestimated the shear modulus at higher concentrations (i.e., 3–3.5% agar), while the results from the other techniques correlated well with the dynamic mechanical test. Magn Reson Med 53:1197–1201, 2005. © 2005 Wiley‐Liss, Inc.
The Experiences of Older People Living With Cancer

Nursing care for older people with cancer requires an understanding of their history and current needs from both an individual and generalized view. The aim of this study was to investigate the experience of older people living with cancer and the way it affects their daily life. During the study, 41 individuals 75 years of age and older (mean age, 83 years) who had a cancer diagnosed within the past 5 years were interviewed in their homes. After verbatim transcription, the interviews were analyzed with latent content analysis. Four main categories were identified: 1) living with cancer means bodily, mental, social, and existential experiences; 2) being aware of the disease or not; 3) handling of daily life; 4) feeling affirmation or rejection from healthcare professionals. Experiences of daily life with cancer were influenced by the combination of old age, comorbidities, and the perception of current and previous life. This combination more or less affected all aspects of life. The power to choose the approach to daily life with cancer, the disease, and its treatment proved to be crucial for handling cancer and the outcome. It seems that the main role for healthcare professionals is to empower the older person to choose for himself or herself. Furthermore, it seems to be important that healthcare professionals support older persons in their choices, whether they choose to take an active part in understanding the disease and handling of daily life or whether they decide to be more passive and hand themselves over to the healthcare system.
Autophagy Plays an Essential Role in Mediating Regression of Hypertrophy during Unloading of the Heart

Autophagy is a bulk degradation mechanism for cytosolic proteins and organelles. The heart undergoes hypertrophy in response to mechanical load but hypertrophy can regress upon unloading. We hypothesize that autophagy plays an important role in mediating regression of cardiac hypertrophy during unloading. Mice were subjected to transverse aortic constriction (TAC) for 1 week, after which the constriction was removed (DeTAC). Regression of cardiac hypertrophy was observed after DeTAC, as indicated by reduction of LVW/BW and cardiomyocyte cross-sectional area. Indicators of autophagy, including LC3-II expression, p62 degradation and GFP-LC3 dots/cell, were significantly increased after DeTAC, suggesting that autophagy is induced. Stimulation of autophagy during DeTAC was accompanied by upregulation of FoxO1. Upregulation of FoxO1 and autophagy was also observed in vitro when cultured cardiomyocytes were subjected to mechanical stretch followed by incubation without stretch (de-stretch). Transgenic mice with cardiac-specific overexpression of FoxO1 exhibited smaller hearts and upregulation of autophagy. Overexpression of FoxO1 in cultured cardiomyocytes significantly reduced cell size, an effect which was attenuated when autophagy was inhibited. To further examine the role of autophagy and FoxO1 in mediating the regression of cardiac hypertrophy, beclin1+/− mice and cultured cardiomyocytes transduced with adenoviruses harboring shRNA-beclin1 or shRNA-FoxO1 were subjected to TAC/stretch followed by DeTAC/de-stretch. Regression of cardiac hypertrophy achieved after DeTAC/de-stretch was significantly attenuated when autophagy was suppressed through downregulation of beclin1 or FoxO1. These results suggest that autophagy and FoxO1 play an essential role in mediating regression of cardiac hypertrophy during mechanical unloading.
High-frequency positive-pressure ventilation for tracheal reconstruction supported by tracheal T-tube.

High-frequency positive-pressure ventilation (HFPPV) was first described by Oberg and Sjostrand (I), who demonstrated in animals that ventilation and oxygenation could be adequately maintained with much lower tidal volumes and higher respiratory rates than conventionally used. This method of ventilation was studied in humans by Jonzon et a1 (2) and was first reported during clinical anesthesia and surgery by Heijman et a1 in 1972 (3). HFPPV is one of two types of high-frequency ventilation; the other is high-frequency oscillation. They differ in the tidal volumes and respiratory rates used. In HFPPV, tidal volumes that approach the anatomic dead space (50 to 250 ml) are delivered at rates of 1 to 10 Hz (60 to 600 breaths/min); alveolar ventilation with this technique is thought to be accomplished by a combination of convection and improved gas diffusion. In high-frequency oscillation, lower tidal volumes (5 to 50 ml) are delivered at rates of 10 to 100 Hz (600 to 6000 breaths/min); alveolar ventilation during high-frequency oscillation is thought to be accomplished by acceleration of gas diffusion and collateral intra-alveolar ventilation (4-7). The high velocity of the small tidal volumes deliv-
A Component-Based Modeling Approach

This paper starts with a consolidated description of widely applied reuse techniques and discusses their drawbacks. As one of the most promising techniques, component-based software development is presented in more detail. Our modeling approach defines three representation techniques for capturing and documenting the essence of component systems. Each one can be represented in two forms, graphically or textually. To further ease modeling complex software systems, we present a general architecture model which structures a system in layers with well-defined tasks. Last, we discuss our view on the task of modeling in contrast to designing and present a list of modeling process activities which can be performed in any order.
Lightweight tagging expands information and activity management practices

Could people use tagging to manage day-to-day work in their personal computing environment? Could tagging be sufficiently generic and lightweight to support diverse ways of working and, perhaps, support new and efficient practices for managing applications and accessing documents? We investigate these issues by implementing the TAGtivity system that enables users to tag resources in the context of their ongoing work. We deployed TAGtivity and studied users' tagging practices in their actual work places over a three week period. Our analysis of interviews and logs reveals that affordances of the TAGtivity system supported users in a variety of information and activity management tasks. These include new practices for managing emerging activities and ephemeral information and accessing documents across application data silos.