Miracle-dz/UniFAR-FTUs huggingface dataset:
Optimizing Live Migration of Virtual Machines in SMP Clusters for HPC Applications

Live migration is one of the most useful features provided by todays' virtual machine monitors (VMM). It enables seamless hardware upgrades, provides fault tolerance, achieves load balancing and saves power through server consolidation. These features can also be beneficial in HPC environments. This paper presents a comprehensive study of the migration facility of the Xen VMM, specifically targeting HPC applications. We analyze the effects of live and non-live migration techniques on HPC application wall times. A detailed relationship of the migration routine with memory modification, communication intensitivity and CPU contention between guest VMs and the host VMM is presented. We propose a simple optimization for the live migration feature. Our optimization is able to reduce the total number of memory pages transferred during the migration by up to 500% and results show an average of 50% improvement over the default Xen migration routine on the traditional gigabit Ethernet infrastructure. We also demonstrate that live migration of virtual machines in an HPC environment can be used to improve application wall times.
Fixed-dimensional parallel linear programming via relative ε-approximations

We show that linear programming in IRd can be solved deterministically in O((loglogn)d) time using linear work in the PRAM model of computation, for any fixed constant d. Our method is developed for the CRCW variant of the PRAM parallel computation model, and can be easily implemented to run in O(logn(loglogn)d-l) time using linear work on an EREW PRAM. A key component in these algorithms is a new, efficient parallel method for constructing c-nets and c-approximations (which have wide applicability in computational geometry). In addition, we introduce a new deterministic set approximation for range spaces with finite VC-exponent, which we call the b-relative c-approtimation, and we show how such approximations can be efficiently constructed in parallel.
Appearances of the Risen Jesus in Cultural Context: Experiences of Alternate Reality

This cross-cultural study of appearances of the Risen Jesus builds on previous research (Pilch 1993; 1995a; 1996) in anthropological psychology about human experiences of alternate reality, also termed "altered states of consciousness. " There is a high degree of cultural plausibility in the Mediterranean world that those persons in the Second Testament reported to have "seen" Jesus, the risen Galilean hasîd or saddiq, could be interpreted as claiming that in an alternate state of consciousness they experienced Jesus' "real self. " This would be like the human experience of similarly real other-than-human persons, such as angels, demons, gods, or God.
OFDM Signal Detector Based on Cyclic Autocorrelation Function and its Properties

This paper is devoted to research of the general and particular properties of the OFDM signal detector based on the cyclic autocorrelation function. The cyclic autocorrelation function is estimated using DFT. The parameters of the testing signal have been chosen according to 802.11g WLAN. Some properties are described analytically; all events are examined via computer simulations. It is shown that the detector is able to detect an OFDM signal in the case of multipath propagation, inexact frequency synchronization and without time synchronization. The sensitivity of the detector could be decreased in the above cases. An important condition for proper value of the detector sampling interval was derived. Three types of the channels were studied and compared. Detection threshold SNR = -9 dB was found for the signal under consideration and for two-way propagation.
Indigenous Student Participation In Higher Education: Emergent Themes And Linkages

Educational processes directed at Indigenous peoples have long propagated a disparity between the educational successes of Indigenous and non–Indigenous students (May 1999), a contrast which can be acutely observed in Australia. It is not surprising, then, that the educational needs of Indigenous students have been poorly served, with the extant literature clearly declaring that there is much work to be done (Malin & Maidment, 2003). Although there have been numerous studies seeking to understand (and by extension, redress) issues pertaining to participation by minority groups in education (such as Indigenous communities), many of these undertakings fail to adequately articulate and consider the importance of cultural factors and how such realities form a unique foundation with respect to Indigenous educational policy and development options. In addressing this shortcoming, this paper explores critical, community capacity building and community empowerment strategies that may inform policies and programmes for the reduction of educational disparities, increasing Indigenous student participation in higher education and promoting Indigenous–led educational initiatives. As such, this exploratory study highlights a number of emergent themes derived by community representatives, including both Indigenous Aboriginal and Torres Strait Islanders, and non–Indigenous participants, during a series of focus group discussions.
Monsters and angels

The crime of child murder is considered the most heinous and least comprehensible of all violent crimes. This study examines the visual representation of 12 high profile child abductions and murders in broadsheet and tabloid newspapers from two countries over a 70-year time frame. The body of coverage produced almost 1000 images and these were examined using a content analysis of the individual subjects of these photographs, followed by a qualitative analysis of the main patterns which emerged. The study produced two expected findings: that the coverage has become increasingly visual, and that the visuals were overwhelmingly `personal'. Within these overarching patterns, it was clear that the content of the visuals has changed over the three decades studied (the 1930s, 1960s and 1990s). In the earlier decades the visuals emphasized the role of the criminal justice system in capturing the perpetrators and bringing them to justice. In the 1990s there was a far greater focus on the victims' families, as well as the emotional responses of society as a whole: both grief for the child, and anger towards their killers and the authorities which `enabled' them to offend. I explore these changes and the possible impact this visual coverage could have on public understanding of this crime, those who commit it, and how we treat them.
Optimized null-subcarrier selection for CFO estimation in OFDM over frequency-selective fading channels

We address the problem of frequency synchronization in OFDM-based communications systems in the context of frequency-selective fading channels. Frequency offsets are estimated by inserting null sub-carriers into a single OFDM block. The paper clarifies issues related to acquisition range and identifiability of carrier frequency offset (CFO), and performance of estimators. A deterministic maximum likelihood estimation approach is adopted. We derive necessary and sufficient conditions on the number of null-subcarriers and their placement in order to ensure identifiability. The Cramer-Rao bound (CRB) for the CFO is derived; for a given number of null sub-carriers, the optimal placement which minimizes the CRB is derived. We show that if the number of null sub-carriers is less than half the total number of sub-carriers, performance is optimal when the null sub-carriers are equispaced.
Serial changes in levels of IL‐6 and IL‐1β in premature infants at risk for bronchopulmonary dysplasia *

The aim of this study was to define the inflammatory changes occurring in the lungs of infants at risk for bronchopulmonary dysplasia (BPD) over the first 28 days of life, and to define an optimal strategy for steroids therapy in the prevention of BPD. We measured levels of interleukin‐6 (IL‐6) and interleukin‐1 beta (IL‐1β) in tracheal aspirate (TA) samples and blood of premature infants with severe respiratory distress syndrome RDS (n = 45) on the first day of life prior to initiation of surfactant therapy and on days 5–7, 12–14, 19–21, and 26–28. Levels of IL‐6 and IL‐1β were determined with a commercially available enzyme‐linked immunoassay. Logistic regression analyses were performed in order to examine differences in trends in levels of IL‐6 and IL‐1β between groups of infants. Infants were divided into group I (n = 30, FiO2 ≤ 0.35 at 28 days) and group II (n = 15, FiO2 > 0.35 based on their likelihood of developing BPD at 36 weeks postconceptional age (PCA).
Zrf1 controls mesoderm lineage genes and cardiomyocyte differentiation

ABSTRACT In the present study we addressed the function of the transcriptional activator Zrf1 in the generation of the 3 germ layers during in vitro development. Currently, Zrf1 is rather regarded as a factor that drives the expression of neuronal genes. Here, we have employed mouse embryonic stem cells and P19 cells to understand the role of Zrf1 in the generation of mesoderm-derived tissues like adipocytes, cartilage and heart. Our data shows that Zrf1 is essential for the transcriptional activation of genes that give rise to mesoderm and in particular heart development. In both, the mESC and P19 systems, we provide evidence that Zrf1 contributes to the generation of functional cardiomyocytes. We further demonstrate that Zrf1 binds to the transcription start sites (TSSs) of heart tissue-specific genes from the first and second heart field where it drives their temporal expression during differentiation. Taken together, we have identified Zrf1 as a novel regulator of the mesodermal lineage that might facilitate spatiotemporal expression of genes.
Semantics and Ontologies for EarthCube

Semantic technologies and ontologies play an increasing role in scientiﬁc workﬂow systems and knowledge infrastructures. While ontologies are mostly used for the semantic annotation of metadata, semantic technologies enable searching metadata catalogs beyond simple keywords, with some early evidence of semantics used for data translation. However, the next generation of distributed and interdisciplinary knowledge infrastructures will require capabilities beyond simple subsumption reasoning over subclass relations. In this work, we report from the EarthCube Semantics Community by highlighting which role semantics and ontologies should play in the EarthCube knowledge infrastructure. We target the interested domain scientist and, thus, introduce the value proposition of semantic technologies in a non-technical language. Finally, we commit ourselves to some guiding principles for the successful implementation and application of semantic technologies and ontologies within EarthCube.
The relationship between posttraumatic and depressive symptoms during prolonged exposure with and without cognitive restructuring for the treatment of posttraumatic stress disorder.

OBJECTIVE In the present study, we examined the relationship between posttraumatic and depressive symptoms during prolonged exposure (PE) treatment with and without cognitive restructuring (CR) for the treatment of posttraumatic stress disorder (PTSD). METHOD Female assault survivors (N = 153) with PTSD were randomized to either PE alone or PE with added CR (PE/CR). During treatment, bi-weekly self-report measures of posttraumatic and depressive symptoms were administered. RESULTS Multilevel mediational analyses indicated that during PE, changes in posttraumatic symptoms accounted for 80.3% of changes in depressive symptoms, whereas changes in depressive symptoms accounted for 45.0% of changes in posttraumatic symptoms. During PE/CR, changes in posttraumatic symptoms accounted for 59.6% of changes in depressive symptoms, and changes in depressive symptoms accounted for 50.7% of changes in posttraumatic symptoms. CONCLUSIONS This pattern of results suggests that PE primarily affects posttraumatic symptoms, which in turn affect depressive symptoms. In contrast, PE/CR results in a more reciprocal relationship between posttraumatic and depressive symptoms.
Amodiaquine Dosage and Tolerability for Intermittent Preventive Treatment To Prevent Malaria in Children

ABSTRACT Sulfadoxine-pyrimethamine with amodiaquine (SP-AQ) is a highly efficacious regimen for intermittent preventive treatment to prevent malaria in children (IPTc), but the amodiaquine component is not always well tolerated. We determined the association between amodiaquine dosage by body weight and mild adverse events (AEs) and investigated whether alternative age-based regimens could improve dosing accuracy and tolerability, using data from two trials of IPTc in Senegal, one in which AQ dose was determined by age and the other in which it was determined by weight category. Both dosage strategies resulted in some children receiving AQ doses above the recommended therapeutic range. The odds of vomiting increased with increasing amodiaquine dosage. In one study, incidence of fever also increased with increasing dosage. Anthropometric data from 1,956 children were used to predict the dosing accuracy of existing and optimal alternative regimens. Logistic regression models describing the probability of AEs by dosage were used to predict the potential reductions in mild AEs for each regimen. Simple amendments to current AQ dosing schedules based on the child's age could substantially increase dosing accuracy and thus improve the tolerability of IPTc using SP-amodiaquine in situations where weighing the child is impractical.
Temporal Evaluation of Risk Factors for Acute Myocardial Infarction Readmissions

Risk-adjusted 30-day readmission rates for specific diagnoses including myocardial infarction are now used to index hospital reimbursement rates, making prediction of this outcome particularly salient. In order to consider how the importance of various predictors may be changing over time, we apply a modified prequential evaluation technique with an extended training set to this classification problem. Least Absolute Shrinkage and Selection Operator (LASSO) logistic regression using cyclical coordinate descent was used for classification. This paper proposes a bootstrapping based approach to evaluation of sparse coefficients in large sparse datasets with binary and numerical features. It was evaluated on an eight-year dataset of hospital discharge records of myocardial infarction patients consisting of 312,309 discharge records. Results indicate diagnoses (clustered around related disease systems) and length of stay are the most important positive predictors, whereas procedures and diagnoses correcting for small groups of patients and total charges are more important among negative predictors. Temporal comparisons tend to suggest that the importance of features themselves is changing, rather than their prevalence.
Express barcodes: racing from specimen to identification

Although devices combining microfluidic and advanced sequencing technologies promise a future where one can generate a DNA barcode in minutes, current analytical regimes typically involve workflows that extend over 2 days. Here we describe simple protocols enabling the advance from a specimen to barcode‐based identification in less than 2 h. The protocols use frozen or lyophilized reagents that can be prepackaged into ‘kits’ and support barcode analysis across the animal kingdom. The analytical procedure allows 5 min for DNA extraction, 25 min for polymerase chain reaction amplification of the barcode region, 25 min for cycle‐sequencing, 10 min for cleanup, 45 min for capillary sequencing and 5 min for trace file analysis to complete DNA‐based identification. This study involved the comparison of varied DNA preservation and extraction methods, and evaluated Taq polymerases with high processivity and resistance to inhibitors.
The use of mathematical tasks design to establish development of student's mathematical thinking by an admission exam at Faculty of Mechanical Engineering of the Banja Luka University

In this article we describe some principles of tasks design by the classification of entrance examination at University of Banja Luka Faculty of Mechanical Engineering. Through the analysis of those tasks we identify some delicate points in the design of examination tasks. We offer a hypothesis that teacher"s understanding of the designing process of examination tasks opens a possibility to enhance students" thinking when solving such tasks.
School leadership for the future: heroic or distributed? Translating international discourses in Norwegian policy documents

School leadership as a key for school reforms has become a dominant theme in education, as demonstrated by a growing body of research during the last 15 years. Still, little attention has been paid to how changing international discourses on school leadership are translated into national public policy documents during the last decade. As such, this study provides additional insight into this field by analysing how Norwegian policy documents translate international discourses and re-contextualise national constructs of school leadership. Inspired by a critical approach, the authors address this issue by identifying discursive shifts in ideas about school leadership roles and practices. Based on an examination of four recent white papers on Norwegian education and school leadership, the authors argue that the policy documents constructed a tension between an international ‘explicit’ principal and a national ‘docile’ principal in 2003–2004, while recent documents construct a consensus-oriented, distributed leadership role for principals through the term ‘facilitating school leaders’. This may lead to contested interpretations as to how to perform school leadership in practice.
Multisensor Biometric Evidence Fusion for Person Authentication Using Wavelet Decomposition and Monotonic-Decreasing Graph

This paper presents a novel biometric sensor generated evidence fusion of face and palmprint images using wavelet decomposition for personnel identity verification. The approach of biometric image fusion at sensor level refers to a process that fuses multispectral images captured at different resolutions and by different biometric sensors to acquire richer and complementary information to produce a new fused image in spatially enhanced form. When the fused image is ready for further processing, SIFT operator are then used for feature extraction and the recognition is performed by adjustable structural graph matching between a pair of fused images by searching corresponding points using recursive descent tree traversal approach. The experimental result shows the efficacy of the proposed method with 98.19% accuracy, outperforms other methods when it is compared with uni-modal face and palmprint authentication results with recognition rates 89.04% and 92.17%, respectively and when all the methods are processed in the same feature space.
Wirksamkeit des Englischunterrichts

Mit Blick auf die Wirksamkeit des Englischunterrichts werden in diesem Kapitel folgende Aspekte und Zusammenhange thematisiert: Unterrichtspraxis, Lehrpersonmerkmale und Unterrichtswirksamkeit, die Unterrichtsqualitat aus Schulersicht, die Rolle von Schulklassenunterschieden, Unterrichtsqualitat und Englischleistung, Bildungsgangprofile der Unterrichtsqualitat, Unterrichtsqualitat und Lerninteresse, Klassengrose und Heterogenitat der Vorkenntnisse. (DIPF/Mar.)
A cell culture system with better spatial and time resolution

A new cell culture system is demonstrated in this paper. This system includes a culture incubator with a compact optical monitoring module and an electro-chemical impedance sensor (ECIS) chip with gelatin micro patterns attracting living cells selectively. We provided a platform with a shorter observation interval of 4 hours and a finer line width of electrodes of sensor chips than the prior art in this work. The in-situ impedance measurement on HeLa cells was performed and shown the better spatial and time resolution.
Toxic? The Nature and Effects of Mothers' Exposure to Pediatric Environmental Health information in the Media

Protecting children from environmental threats like lead poisoning and pesticides is becoming a greater public health priority. Research dedicated to prenatal and pediatric environmental health (PPEH) coupled with the green movement and increasingly intensive parenting has created a new, dynamic environment in which information can play a critical role in determining protective behaviors. New and expecting mothers particularly vulnerable to toxic chemicals in the environment are exposed to health information from a variety of sources, including the mass media. Despite several decades of environmental and health communication research, the nature and effects of environmental health information available to mothers have received limited research attention. This dissertation launches a new exploration into environmental health communication by asking three overarching research questions: (1) how prevalent is PPEH information in the media, (2) is mothers' exposure to such information linked to key outcomes namely, protective behaviors, behavioral intentions, knowledge, descriptive norms, and perceived threat, and (3) are the effects of such exposure contingent on the relative volume of media coverage PPEH topics receive? To address these questions, four studies were conducted. Study 1, an elicitation survey, determines where mothers routinely come across, or scan, PPEH information and how they conceptualize toxic threats. Study 2, a content analysis of popular media sources (i.e., the Associated Press (AP), parenting magazines, and parenting websites), focuses on the first research question. Study 3, a cross-sectional survey, addresses the second question, while Study 4 combines data from Studies 2 and 3 to address the third. While Studies 1 and 2 examine multiple PPEH issues, the latter two studies focus in on three chemical toxins: arsenic, bisphenol A (BPA), and pesticides. Results show that PPEH information is prevalent on parenting websites and exists to a lesser extent in AP stories and parenting magazines. Perhaps more importantly, there is evidence that mothers scan this information and that scanning is associated with certain positive outcomes. The observed differences between the effects of media scanning at different levels of coverage volume were in a direction not entirely consistent with study hypotheses. Implications of these findings for communication research and practice are discussed. Degree Type Dissertation Degree Name Doctor of Philosophy (PhD) Graduate Group Communication First Advisor Robert C. Hornik This dissertation is available at ScholarlyCommons: http://repository.upenn. edu/edissertations/779
An Overview of The System Software of A Parallel Relational Database Machine GRACE

I’llis paper olll.lincs the system soflware of a parallel reI:ll.iollaI dnl.nhase machine GRACE. and describes its execul.inn and conlrol of rclnl.ional operalions based. on the data . s/rnom o~i.enlnrl processing. The system software is organized in a hicrnrchy. and the execulion of a relalional operation and il.s opcmnd tlnl. ;~ are encapsulated and controlled in lhe’ rOrln Or htk. The dala stream conLol ~olocol bclween n~odulcs in a lnsk makes lasks autonomdus objecls. The sysl.cm sorl.warc we propose eliminales lhe grealer p’arl ol possihlc conI.roI ovcrhcods firs1 by adopting Che task-level grnnuInri1.y lnr l.hc execuI.ion and control, lhen by execuling Ihe operation along 1.11~ flow of operand dala. The former rctluces Ihc control overhead for enabling the execution of a rcl;rl.ionnl operal.ion, while the laller hides the execul.ion hchind I.IIc I/O’s or da1.a I.rjnsler. 11s preliminary implemenI.rll. ion on lhc soflwarc simulalor of GRACE is also reporled. In nddil.ion. the novel virtual space management algorithm is proposed, which enables us lo handle a iarge data stream qui1.c cllicienl.ly.