Miracle-dz/UniFAR-FTUs huggingface dataset:
A PERFORMANCE STUDY OF HARDWARE IMPACT ON FULL VIRTUALIZATION FOR SERVER CONSOLIDATION IN CLOUD ENVIRONMENT

Underutilization of hardware resources has always b een a problem in single workload driven traditional OS environment. To improve resource utilization, virtu alization of multiple VMs and workloads onto the sa me host with the aid of Hypervisor has been the recent trend. Its use cases such as server consolidation, live migration, performance isolation and on-demand serv er provisioning make it as a heart part of enterpri se application cloud. Cloud is an on-demand, service p rovisioning technology, where performance plays a vital role for user acceptance. There are numerous virtualization technologies are available from full virtualization to paravirtualization, each has its s rength and weakness. As performance study is an o ngoing pursuit, hardware and software development getting matured day by day, it is desirable to do this sort of performance study in regular interval that often sh eds new light on aspects of a work not fully explor ed in the previous publication. Hence, this paper focus p erformance behaviours of various full virtualizatio n models such as hosted (VirtualBox) and bare metal ( KVM) virtualization using variety of benchmarks fro m micro, macro and application level in the cloud en vironment. We compare both virtualization solutions with a base system in terms of application performa nce, resource consumption, low-level system metrics like context switch, process creation, interprocess communication latency and virtualization-specific metrics like virtualization layer consumption. Expe rimental results yield that VirtualBox outperforms KVM in CPU and thread level parallelism and KVM outperf orms in all other cases. Both are very reluctantly accepted for disk usages comparing with native syst em.
A Multi-Scale Approach to Directional Field Estimation

This paper proposes a robust method for directional field estimation from fingerprint images that combines estimates at multiple scales. The method is able to provide accurate estimates in scratchy regions, while at the same time maintaining correct estimates around singular points. Compared to other methods, the penalty for detecting false singular points is much smaller, because this does not deteriorate the directional field estimate.
Dedicated deep neural network architectures and methods for their training

Deep neural networks are currently very popular trend in artificial intelligence. While such networks are very powerful they are difficult in training. The paper discusses capabilities of different neural network architectures and presents the proposition of new multilayer architecture with additional connections across layers, called Bridged MLP, that is much easier to train that traditional MLP network. Efficiency of suggested approach has been confirmed by several experiments.
nDEWS: A new domains early warning system for TLDs

We present nDEWS, a Hadoop-based automatic early warning system of malicious domains for domain name registry operators, such as top-level domain (TLD) registries. By monitoring an entire DNS zone, nDEWS is able to single out newly added suspicious domains by analyzing both domain registration and global DNS lookup patterns of a TLD. nDEWS is capable to detect several types of domain abuse, such as malware, phishing, and allegedly fraudulent web shops. To act on this data, we have established a pilot study with two major . nl registrars, and provide them with daily feeds of their respective suspicious domains. Moreover, nDEWS can also be implemented by other TLD operators/registries.
Combined effects of electric toothbrushing and dentifrice on artificial stain removal: An in vitro study

Background This in vitro study aimed to clarify the combined effect of electric toothbrushing and dentifrice on the removal of artificial stain. Material and Methods Twenty-five bovine incisors were cut at the cervix and the crown was embedded in auto-cured acrylic resin. Specimens were abraded using #240 SiC paper to obtain a flat enamel surface, and 20 specimens were treated with 10% citric acid / 3% ferric chloride solution followed by 1% tannic acid solution to produce surface staining. They were divided into four groups: 1) brushing with an electric toothbrush and whitening dentifrice (group S+B); 2) brushing with an electric toothbrush and fluoride dentifrice (group S+C); 3) brushing with an electric toothbrush and no dentifrice (group S); and 4) no brushing (control group). The remaining five specimens were used as a baseline. Color values (L*, a*, and b* were measured before brushing (0 min), and at 1 min, 5 min, 10 min, and 20 min using a microscopic area spectrophotometer. The color change (ΔE) was calculated by subtracting the baseline values from the final color values obtained at each time point. The data were statistically analyzed using two-way repeated-measures analysis of variance and Tukey’s honest significant difference test as a post hoc test (p<0.05). Results The L* values of groups S+B and S+C increased over time (p<0.05), but no significant differences were observed in group S and the control group at any of the time points (p>0.05). Groups S+B and S+C demonstrated greater ΔE values than group S. Conclusions The combination of electric toothbrushing and dentifrice removed the artificial stain more effectively than brushing without dentifrice. However, the stain removal was limited. The two dentifrices evaluated in this study exhibited similar stain removal effects. Key words:Color change, stain removal, dentifrice, electric toothbrush, whitening effect.
Determinants of User Innovation and Innovation Sharing in a Local Market

It is known that end users of products and services sometimes innovate, and that innovations developed by users sometimes become the basis for important newcommercial products and services. It has also been argued and to some extent shown that such innovations will be found concentrated in a "lead user" segment of the user community. However, neither the characteristics of innovating users nor the scope of the community that they "lead" has been explored in depth.In this paper, we explore the characteristics of innovation, innovators, and innovation sharing by library users of OPAC information search systems in Australia. This market has capable users, but it is nonetheless clearly a "follower" with respect to worldwide technological advance. Wefind that 26% of users in this local market nonetheless do modify their OPACs in both major and minor ways, and that OPAC manufacturers judge many of these user modifications to be of commercial interest. We find that we can distinguish modifying from nonmodifying users on the basis of a number of factors, including their "leading-edge status" and their in-house technical capabilities. We find that many innovating users freely share their innovations with others, and find that we can distinguish users that share information about their modifications from users that do not. We conclude by considering some implications of our findings for idea generation practices in marketing.
India Biodiversity Portal: An integrated, interactive and participatory biodiversity informatics platform

Abstract Background This paper describes a growing biodiversity platform, launched in 2008, which organizes knowledge on the biodiversity of India. The main objective and originality of the India Biodiversity Portal (IBP) is to aggregate curated biodiversity data of different kinds (e.g. distribution maps, temporal distribution or life history) in an integrated platform where amateurs and experts can easily interact. New information Since its launch, the platform has seen an exceptional increase in both user activity and biodiversity data. Currently the portal has descriptions of over 20,400 species, and has aggregated approximately 1,280,000 observations covering more than 30,000 species, which already constitutes a unique source of information for scientists and stakeholders in conservation. Over 8500 users have registered on the portal. The amount of data generated and to be generated in the next few years by this portal will certainly help the effective implementation of biodiversity conservation and management in one of the most ecologically diverse countries in the world.
Environmental Health: a Global Access Science Source Cocaine in Surface Waters: a New Evidence-based Tool to Monitor Community Drug Abuse

Background: Cocaine use seems to be increasing in some urban areas worldwide, but it is not straightforward to determine the real extent of this phenomenon. Trends in drug abuse are currently estimated indirectly, mainly by large-scale social, medical, and crime statistics that may be biased or too generic. We thus tested a more direct approach based on 'field' evidence of cocaine use by the general population.
Working Paper: Improving Recommendation Diversity Using Ranking-based Techniques Improving Recommendation Diversity Using Ranking-based Techniques

— Recommender systems are becoming increasingly important to individual users and businesses for providing personalized recommendations. However, while the majority of algorithms proposed in recommender systems literature have focused on improving recommendation accuracy (as exemplified by the recent Netflix Prize competition), other important aspects of recommendation quality, such as the diversity of recommendations, have often been overlooked. In this paper, we introduce and explore a number of item ranking techniques that can generate substantially more diverse recommendations across all users while maintaining comparable levels of recommendation accuracy. Comprehensive empirical evaluation consistently shows the diversity gains of the proposed techniques using several real-world rating datasets and different rating prediction algorithms.
Association Between High‐Sensitivity Cardiac Troponin I and Cardiac Events in Elderly Women

Background Elderly women are at high risk of coronary heart disease (CHD) and heart failure. High‐sensitivity assays allow detection of cardiac troponin I (hsTnI) well below diagnostic cutoffs for acute coronary syndrome. We investigated the association between these levels with future cardiac events in community‐based ambulant white women aged over 70 years initially recruited for a 5‐year randomized, controlled trial of calcium supplements. Methods and Results This was a prospective study of 1081 elderly women without clinical CHD at baseline (1998) or hsTnI above the diagnostic cutoffs for acute coronary syndrome with 14.5‐year follow‐up hospitalization and mortality (events). Two hundred forty‐three (22%) women had CHD events, 163 (15%) myocardial infarction or CHD death (hard CHD), and 109 (10%) heart failure. In 99.6% of available serum samples, hsTnI was above the level of detection (median, 4.5 ng/L; interquartile range, 3.6–5.8). After adjusting for Framingham risk factors, each SD natural log‐transformed hsTnI increase was associated with an increased hazard for CHD (hazard ratio, 1.34; 95% CI, 1.18–1.53; P<0.001) hard CHD (hazard ratio, 1.51; 95% CI, 1.29–1.76; P<0.001), and heart failure (hazard ratio, 1.65; 95% CI, 1.36–1.99; P<0.001). Step‐wise increases in relative hazards were observed with increasing quartiles of hsTnI (P for trend, <0.001), whereas the addition of hsTnI to conventional risk factors modestly improved discrimination indices: Harrell's c‐statistic, net reclassification, and integrated discrimination (P<0.05). Conclusions Cardiac troponin I is independently associated with future cardiac events in elderly women without apparent clinical manifestations. The addition of cardiac troponin I to conventional risk factors may modestly improve risk prediction in this setting.
Investigation of Roll-to-Sheet Imprinting for the Fabrication of Thin-film Transistor Electrodes

We applied a roll-to-sheet imprinting process to a largescale substrate. Patterned ruthenium oxide (RuO2) electrodes were fabricated on both glass and flexible substrates. The resistivity of the electrodes on a glass substrate was 3.5×10−5 Ω cm, which indicates that this technique is useful for the fabrication of thin-film transistor (TFT) electrodes. key words: Nano-rheology Printing, Oxide TFT, Printed Electronics, Printed TFT
CELF4 Regulates Translation and Local Abundance of a Vast Set of mRNAs, Including Genes Associated with Regulation of Synaptic Function

RNA–binding proteins have emerged as causal agents of complex neurological diseases. Mice deficient for neuronal RNA–binding protein CELF4 have a complex neurological disorder with epilepsy as a prominent feature. Human CELF4 has recently been associated with clinical features similar to those seen in mutant mice. CELF4 is expressed primarily in excitatory neurons, including large pyramidal cells of the cerebral cortex and hippocampus, and it regulates excitatory but not inhibitory neurotransmission. We examined mechanisms underlying neuronal hyperexcitability in Celf4 mutants by identifying CELF4 target mRNAs and assessing their fate in the absence of CELF4 in view of their known functions. CELF4 binds to at least 15%–20% of the transcriptome, with striking specificity for the mRNA 3′ untranslated region. CELF4 mRNA targets encode a variety of proteins, many of which are well established in neuron development and function. While the overall abundance of these mRNA targets is often dysregulated in Celf4 deficient mice, the actual expression changes are modest at the steady-state level. In contrast, by examining the transcriptome of polysome fractions and the mRNA distribution along the neuronal cell body-neuropil axis, we found that CELF4 is critical for maintaining mRNA stability and availability for translation. Among biological processes associated with CELF4 targets that accumulate in neuropil of mutants, regulation of synaptic plasticity and transmission are the most prominent. Together with a related study of the impact of CELF4 loss on sodium channel Nav1.6 function, we suggest that CELF4 deficiency leads to abnormal neuronal function by combining a specific effect on neuronal excitation with a general impairment of synaptic transmission. These results also expand our understanding of the vital roles RNA–binding proteins play in regulating and shaping the activity of neural circuits.
Turnover of Information Technology Professionals: A Narrative Review, Meta-Analytic Structural Equation Modeling, and Model Development

This study combines a narrative review with meta-analytic techniques to yield important insights about the existing research on turnover of information technology professionals. Our narrative review of 33 studies shows that the 43 antecedents to turnover intentions of IT professionals could be mapped onto March and Simon's (1958) distal-proximal turnover framework. Our meta-analytic structural equation modeling shows that proximal constructs of job satisfaction (reflecting the lack of desire to move) and perceived job alternatives (reflecting ease of movement) partially mediate the relationships between the more distal individual attributes, job-related and perceived organizational factors, and IT turnover intentions. Building on the findings from our review, we propose a new theoretical model of IT turnover that presents propositions for future research to address existing gaps in the IT literature.
Load-Balanced Routing in Wireless Networks: State Information Accuracy Using OLSR

To support QoS routing, accurate state should be available and manageable. But due to bandwidth constraints, communication costs, high loss rate and the dynamic topology of wireless networks, obtaining and keeping up-to-date state information is a very complex task. A commonly used QoS metric is router queue length, used as a load metric in a number of load-balancing routing protocols. In this paper, we explore how to accurately propagate information about a router's queue length in a network that runs the optimized link state routing (OLSR) protocol. We report the quantification of state information accuracy under different traffic rates. The results show that state information is inaccurate, especially under high traffic rates. Tuning the OLSR protocol parameters has no noticeable impact on inaccuracy levels. Based on our initial analysis, we propose two additional techniques to collect queue length information as an attempt to reduce inaccuracies. We compare the different techniques against the basic OLSR, no additional improvements were observed. The results raise questions as to how load-balanced routing should be done in the face of non-negligible inaccuracies in the load metric.
An Overview of Argumentation Semantics

El principal proposito de la teoria de argumentacion es el estudio de los mecanismos basicos que los humanos usan en argumentacion y ademas explorar metodos para implementar dichos mecanismos en las computadoras. Durante los ultimos anos, argumentacion ha ganado importancia en el area de las ciencias de la computacion muy en especial en los campos de la inteligencia artificial, comercio electronico, sistemas multi – agentes y toma de decisiones. En este articulo, presentamos una breve revision de los patrones mas aceptados en la seleccion de argumentos — a dichos patrones se les llama semanticas de argumentacion. Con el proposito de promover y difundir esta joven area de investigacion, se describira el uso de argumentacion en una aplicacion medica. Ademas, presentaremos algunos resultados que contribuyen a la integracion de modelos teoricos de argumentacion a sistemas reales basados en argumentacion
Downlink Resource Allocation and Power Control for Device-to-Device Communication Underlaying Cellular Networks

This letter investigates the resource allocation and power control for both device-to-device (D2D) pairs and cellular users (CUs) in D2D communication underlaying single-cell cellular networks, where multiple D2D pairs can share the same resources with CUs. Our goal is to maximize the sum rate of D2D pairs subject to the rate requirements for all CUs and power requirements for both D2D pairs and the base station. We first give the optimal conditions for the resource allocation of D2D pairs and power control of CUs and then propose an iterative resource allocation and power control algorithm. Numerical results show that the proposed algorithm achieves higher sum rate of D2D pairs than the existing schemes.
T -theory : An Overview

T -theory is the name that we adopt for the theory of trees , injective envelopes of metric spaces , and all of the areas that are connected with these topics , which has been developed over the past 10 – 15 years in Bielefeld . Its motivation was originally—and still is to a large extent—the development of mathematical tools for reconstructing phylogenetic trees . T -theory expanded considerably when its relationships with the theory of af fine buildings , valuated matroids , and decompositions of metrics were discovered . In this paper , we give a brief introduction to this theory , which we hope will serve as a useful reference to some of the main results , and also as a guide for further investigations into what T -theory has to of fer .
A novel approach for effective integration of new faculty leadership

Purpose We report on an accelerated and effective way of assimilating a new leader into a team at a large academic dental school department. Methods At University of California, San Francisco (UCSF), a new Chair was recruited through a national search to lead its largest department in the School of Dentistry. Two months after arrival, the new Chair embarked on a process of leadership assimilation among her executive team, facilitated by a professional consultant. Within four weeks, team members participated in one-on-one interviews with the professional facilitator consultant and then completed the leadership assimilation questionnaire and returned it electronically to the facilitator. The facilitator then summarized all answers into themes and met with the team members without the Chair to debrief. Thereafter, the facilitator met with the Chair to discuss the major themes. Next, the Chair met with the team members in a facilitated session to discuss the results and negotiate a path forward. Results Approximately half of the feedback described the “how” of leadership: comments on communication, building relationships, building trust, and understanding UCSF history. The remaining half described the “what”: comments on vision, strategy, and operations. Team members indicated that the first debriefing session was helpful to alleviate initial anxiety and to start building team spirit. The session with the Chair was perceived as open and fruitful in which team members were able to express their concerns and hopes for the Department, while the Chair showed commitment to the team and the communication process. Conclusion Leader assimilation allows teams to share their expectations and anxieties with the new leader early in the relationship in an open way, before new habits and beliefs are formed. Conversely, for the leader, it effectively and efficiently allows a window into the team members’ thinking at a critical time period when otherwise first impressions occur. With a safe space created for open communication, the process allowed siloed individual division leaders to move toward a cohesive group while at the same time solidifying a commitment to the success of the new leader.
How Ordinary MPs Can Make it Into the News: A Factorial Survey Experiment with Political Journalists to Explain the Newsworthiness of MPs

Parliamentarians have to compete against each other to make it into the news, and some of them succeed more than others. Based upon news value theory, I consider MPs’ characteristics as news factors to explain their newsworthiness. I take an innovative approach by conducting a factorial survey experiment with political journalists. This allows me to study first which MPs are considered newsworthy and second whether journalists judge MPs’ newsworthiness regardless of their own personal background. In total, 73 Belgian journalists each judged 8 fictional press releases in which we carefully manipulated 4 characteristics of the MP sending it: party affiliation, issue specialization, media reactivity, and political action. Results show that parliamentarians from larger parties, those who react on mediatized issues, and those who communicate about their bill proposals are more newsworthy. Journalists’ judgments do not differ according to their gender, age, education, or political leaning.
CARAPACE: A novel composite advanced robotic actuator powering assistive compliant exoskeleton preliminary design

A novel actuator is introduced that combines an elastically compliant composite structure with conventional electromechanical elements. The proposed design is analogous to that used in Series Elastic Actuators, its distinctive feature being that the compliant composite part offers different stable configurations. In other words, its elastic potential presents points of local minima that correspond to robust stable positions (multistability). This potential is known a priori as a function of the structural geometry, thus providing tremendous benefits in terms of control implementation. Such knowledge enables the complexities arising from the additional degrees of freedom associated with link deformations to be overcome and uncover challenges that extends beyond those posed by standard rigidlink robot dynamics. It is thought that integrating a multistable elastic element in a robotic transmission can provide new scenarios in the field of assistive robotics, as the system may help a subject to stand or carry a load without the need for an active control effort by the actuators.