Miracle-dz/UniFAR-FTUs huggingface dataset:
Analisis Hubungan Resiliensi Matematik Terhadap Kemampuan Pemecahan Masalah Siswa Pada Materi Lingkaran

The purpose of this study to determine the relationship of mathematical resilience to students problem solving abilities. This research was conducted in MTs Negeri Kota Cimahi class VIII-I even semester in academic year 2017-2018. The method used is qualitative descriptive method. Population taken is all students of class VIII MTs Negeri Kota Cimahi. Sampling using purposive sampling technique, which is a determination and sampling technique determined by the researchers with certain considerations. The sample consists of 34 students. Circle material used in research. Research instrument as many as 5 items about problem solving and resilience statement scale as many as 40 statement. The conclusion gained is that there are difficulties experienced by students in solving problem solving problem and there is correlation between mathematical resiliency to student problem solving ability equal to 0,649.
Six degree-of-freedom haptic rendering using voxel sampling

A simple, fast, and approximate voxel-based approach to 6-DOF haptic rendering is presented. It can reliably sustain a 1000 Hz haptic refresh rate without resorting to asynchronous physics and haptic rendering loops. It enables the manipulation of a modestly complex rigid object within an arbitrarily complex environment of static rigid objects. It renders a short-range force ﬁeld surrounding the static objects, which repels the manipulated object and strives to maintain a voxel-scale minimum separation distance that is known to preclude exact surface interpenetration. Force discontinuities arising from the use of a simple penalty force model are mitigated by a dynamic simulation based on virtual coupling. A generalization of octree improves voxel memory efﬁciency. In a preliminary implementation, a commercially available 6-DOF haptic prototype device is driven at a constant 1000 Hz haptic refresh rate from one dedicated haptic processor, with a separate processor for graphics. This system yields stable and convincing force feedback for a wide range of user controlled motion inside a large, complex virtual environment, with very few surface inter-penetration events. This level of performance appears suited to applications such as certain maintenance and assembly task simulations that can tolerate voxel-scale minimum separation distances. CR
Low-Latency Multi-Datacenter Databases using Replicated Commit

Web service providers have been using NoSQL datastores to provide scalability and availability for globally distributed data at the cost of sacrificing transactional guarantees. Recently, major web service providers like Google have moved towards building storage systems that provide ACID transactional guarantees for globally distributed data. For example, the newly published system, Spanner, uses Two-Phase Commit and Two-Phase Locking to provide atomicity and isolation for globally distributed data, running on top of Paxos to provide fault-tolerant log replication. We show in this paper that it is possible to provide the same ACID transactional guarantees for multi-datacenter databases with fewer cross-datacenter communication trips, compared to replicated logging. Instead of replicating the transactional log, we replicate the commit operation itself, by running Two-Phase Commit multiple times in different datacenters and using Paxos to reach consensus among datacenters as to whether the transaction should commit. Doing so not only replaces several inter-datacenter communication trips with intra-datacenter communication trips, but also allows us to integrate atomic commitment and isolation protocols with consistent replication protocols to further reduce the number of cross-datacenter communication trips needed for consistent replication; for example, by eliminating the need for an election phase in Paxos. We analyze our approach in terms of communication trips to compare it against the log replication approach, then we conduct an extensive experimental study to compare the performance and scalability of both approaches under various multi-datacenter setups.
CD154 Plays a Central Role in Regulating Dendritic Cell Activation During Infections That Induce Th1 or Th2 Responses1

We compared splenic DC activation during infection with either the Th2 response-inducing parasite Schistosoma mansoni or with the Th1 response-inducing parasite Toxoplasma gondii. CD8α+ DC from schistosome-infected mice exhibited a 2- to 3-fold increase in the expression of MHC class II, CD80, and CD40 (but not CD86) compared with DC from uninfected control animals, while CD8α− DC exhibited a 2- to 3-fold increase in the expression of MHC class II and CD80 and no alteration, compared with DC from uninfected mice, in the expression of CD86 or CD40. Intracellular staining revealed that DC did not produce IL-12 during infection with S. mansoni. In contrast, infection with T. gondii resulted in a more pronounced increase in the expression of activation-associated molecules (MHC class II, CD80, CD86, and CD40) on both CD8α− and CD8α+ splenic DC and promoted elevated IL-12 production by DC. Analysis of MHC class I and of additional costimulatory molecules (ICOSL, ICAM-1, OX40L, 4-1BBL, and B7-DC) revealed a generally similar pattern, with greater indication of activation in T. gondii-infected mice compared with S. mansoni-infected animals. Strikingly, the activation of DC observed during infection with either parasite was not apparent in DC from infected CD154−/− mice, indicating that CD40/CD154 interactions are essential for maintaining DC activation during infection regardless of whether the outcome is a Th1 or a Th2 response. However, the ability of this activation pathway to induce IL-12 production by DC is restrained in S. mansoni-infected, but not T. gondii-infected, mice by Ag-responsive CD11c− cells.
Assessing the benefits of multimodal feedback on dual-task performance under demanding conditions

The last few years have seen the release of an increasing number of new IT-related devices into the marketplace that have started to utilize tactile feedback. These include those devices incorporating a touch screen that make multimodal feedback incorporating the delivery of two or more sensory modalities possible. The commonly-held view is that the use of such multimodal (or multisensory) feedback, involving the presentation of information to two or more sensory modalities ought, if anything, to improve the usability, performance, and satisfaction of the interface. In particular, an especially beneficial effect of multimodal feedback might be expected in those situations that are highly perceptually and/or cognitively demanding, such as driving a car or monitoring a complex system. In the present study, we examined the potential beneficial effect of the multimodal feedback provided by a touch screen on participants' performance in a perceptually demanding dual-task situation. We compared unimodal (visual) feedback with various kinds of multimodal (bimodal and trimodal) feedback. In addition, we also investigated the consequences of varying the intensity and number of multimodal feedback signals that were presented on driver performance (Experiment 2). Overall, the results of the two experiments reported here show that the presentation of multimodal feedback results in enhanced performance and more pronounced benefits as the intensity of the feedback signals presented to the different modalities is increased.
A comparison of three models to explain internet banking behaviour

A key objective of information technology (IT) research is to assess the value of technology for users and to understand the factors that ascertain this value in order to better deploy IT resources. This paper uses structural equation modeling to test if three popular models – TRA, TPB and TAM - of users’ behavior can be applied in the internet banking context. The purpose is to understand the capacity of these theories to predict and explain objectively measured behavior. Unlike other tests of these models, this paper employs independent measures of actual behavior and behavioural intention. The results indicate that technology acceptance model is superior to other models and also shows the importance of trust in understanding internet banking behaviour.
EMBEDDED YOUNG STELLAR OBJECT CANDIDATES IN THE ACTIVE STAR-FORMING COMPLEX W51: MASS FUNCTION AND SPATIAL DISTRIBUTION

We present 737 candidate young stellar objects (YSOs) near the W51 giant molecular cloud over an area of 1. °25 × 1. °00 selected from Spitzer Space Telescope data. We use spectral energy distribution fits to identify YSOs and distinguish them from main-sequence (MS) or red giant stars, asymptotic giant branch stars, and background galaxies. Based on extinction of each YSO, we separate a total of 437 YSOs associated with the W51 region from the possible foreground sources. We identify 69 highly embedded Stage 0/I candidate YSOs in our field with masses >5 M☉ (corresponding to mid- to early-B MS spectral types), 46 of which are located in the central active star-forming regions of W51A and W51B. From the YSOs associated with W51, we find evidence for mass segregation showing that the most massive YSOs are concentrated on the W51 H ii region complex. We find a variation in the spatial distribution of the mass function (MF) of YSOs in the mass range between 5 M☉ and 18 M☉. The derived slopes of the MF are −1.26 and −2.36 in the active star-forming region and the outer region, respectively. The variation of the MF for YSOs embedded in the molecular cloud implies that the distribution of stellar masses in clusters depends on the local conditions in the parent molecular cloud.
Fast global optimality verification in 3D SLAM

Graph-based SLAM has proved to be one of the most effective solutions to the Simultaneous Localization and Mapping problem. This approach relies on nonlinear iterative optimization methods that in practice perform both accurately and efficiently. However, due to the non-convexity of the problem, the obtained solutions come with no guarantee of global optimality and may get stuck in local minima. The application of SLAM to many real-world applications cannot be conceived without additional control tools that detect possible suboptimalities as soon as possible in order to take corrective action and avoid catastrophic failure of the entire system. This paper builds upon the state-of-the-art framework in verification for this problem and introduces a novel superior formulation that leads to a much higher efficiency. While retaining the same high effectiveness, the verification times of our proposal reduce up to >50x, paving the way for faster verification in critical real applications or in embedded low-power systems. We support our claims with extensive experiments with real and simulated data.
The Vocal Generosity Effect: How Bad Can Your Singing Be?

prior work indicates that listeners may be more likely to call a note in-tune when it is sung than when it is in another timbre. The current study seeks to confirm whether this vocal generosity effect generalizes to melodies. Musicians and nonmusicians listened to pairs of single tones and scale-based melodies performed with the voice or the violin. The final note was varied in how well it was tuned to the prior context, and for each example, listeners judged whether the final note was intune or not. A strong vocal generosity effect was found for musicians and nonmusicians in both melodic and single tone conditions – a higher degree of mistuning was necessary for listeners to decide that sung tones were out-of-tune compared with violin notes. These results confirm the role of timbre in tuning judgments, and help explain why singers are typically less well-tuned than instrumentalists in performance.
The effect of tape overlappings in winding insulations on tree growth and breakdown time

The propagation of electrical trees in bent mica tapes of tape overlappings is described. The investigations were made because tapes in winding insulations of high voltage rotating machines are regularly bent at those sections. Geometrical sizes of bent mica tapes were analysed in micrographs and its influence on time to breakdown was determined in treeing experiments in a needle-plane-arrangement. It was found that a bent tape, which is penetrated by the tree, can lead to significantly reduced time to breakdown values. The probability of penetrating a tape depends on the size of bending and the support material. The results can be used by manufacturers to choose mica tapes that assure a higher quality of the insulation. Furthermore, the results provide a basis of developing tapes with lower sensitivity to damages at bends.
Effects of Teachers’ Professional Knowledge and Their Use of Three-Dimensional Physical Models in Biology Lessons on Students’ Achievement

Using three-dimensional physical models elaborately in their learning, students can develop high-level understanding of models and modeling in science, thereby attaining higher achievement. However, there are in the literature few indications of how teachers should use three-dimensional physical models in instruction and whether teachers’ professional knowledge is a prerequisite for teaching with elaborate use of models. Therefore, our study used a mixed-methods approach to analyze the effects of biology teachers’ domain-specific pedagogical content knowledge (PCK) and content knowledge (CK) on students’ achievement mediated by elaborate model use (ELMO). Our quantitative sample comprised 36 German secondary school teachers whose lessons on the topic of neurobiology were videotaped twice (N = 72 lessons). Teachers completed professional knowledge tests on their PCK and CK. Students’ achievement was measured using pre- and post-knowledge tests. Our qualitative analysis involved five selected teachers according to aspects of ELMO. The results of our study indicated that teachers’ PCK and CK had no direct effect on students’ achievement. However, teachers’ PCK had a significant indirect and positive effect on students’ achievement mediated by ELMO. The findings of our study can provide teachers and researchers examples of how to implement biology instruction with elaborate use of three-dimensional physical models.
Ordering Policy Rules with an Unconditional Welfare Measure

The unconditional expectation of social welfare is often used to assess alternative macroeconomic policy rules in applied quantitative research. It is shown that it is generally possible to derive a linear-quadratic problem that approximates the exact non-linear problem where the unconditional expectation of the objective is maximised and the steady-state is distorted. Thus, the measure of policy performance is a linear combination of second moments of economic variables which is relatively easy to compute numerically, and can be used to rank alternative policy rules. The approach is applied to a simple Calvo-type model under various monetary policy rules.
Current State of Resistance to Antibiotics of Last-Resort in South Africa: A Review from a Public Health Perspective

A review of the literature was undertaken to delineate the current level and mechanisms of resistance to carbapenems, colistin, and tigecycline in South Africa. Thirty-two English publications and 32 National Institute of Communicable Diseases communiqués identified between early January 2000 and 20 May, 2016 showed substantial reports of NDM (n = 860), OXA-48 (n = 584), VIM (n = 131), and IMP (n = 45) carbapenemases within this period, mainly in Klebsiella pneumoniae (n = 1138), Acinetobacter baumannii (n = 332), Enterobacter cloacae (n = 201), and Serratia marcescens (n = 108). Colistin and tigecycline resistance was prevalent among K. pneumoniae, A. baumannii, S. marcescens, and E. cloacae. The first mcr-1 colistin resistance gene to be detected in South Africa was reported in Escherichia coli from livestock as well as from hospitalized and outpatients. There are increasing reports of NDM and OXA-48 carbapenemases among Enterobacteriaceae and A. baumannii in South Africa. Mcr-1 is now present in South African patients and livestock. Resistance to carbapenems, colistin, and tigecycline restricts infection management options for clinicians.
Scalable Genome Resequencing with ADAM and avocado by

Scalable Genome Resequencing with ADAM and avocado by Frank Austin Nothaft Master of Science in Computer Science University of California, Berkeley Professor David Patterson, Chair The decreased cost of genome sequencing technologies has made genome sequencing a viable tool for clinical and populations genomics applications. The e ciency of genome sequencing has been further improved through large projects like the Human Genome Project, which have assembled reference genomes for medically/agriculturally important organisms. These reference quality assemblies have enabled the creation of genome resequencing pipelines, where the genome of a single sample is computed by computing the di↵erence between a given sample and the reference genome for the organism. While sequencing cost has decreased by more than 10,000⇥ since the Human Genome Project concluded in 2003, resequencing pipelines have struggled to keep pace with the growing volume of genomic data. These tools su↵er from limited parallelism because they were not designed to use parallel or distributed computing techniques, and are limited by asymptotically ine cient algorithms. In this thesis, we introduce two tools, ADAM and avocado. ADAM provides an e cient framework for performing distributed genomic analyses, and avocado implements e cient local reassembly to discover genomic variants. ADAM presents high level APIs that allow for genomic analyses to be parallelized across more than 1,000 processors. Using these APIs, we are able to achieve linear speedups when parallelizing several common analysis stages.
An Analysis of Power Consumption in a Smartphone

Mobile consumer-electronics devices, especially phones, are powered from batteries which are limited in size and therefore capacity. This implies that managing energy well is paramount in such devices. Good energy management requires a good understanding of where and how the energy is used. To this end we present a detailed analysis of the power consumption of a recent mobile phone, the Openmoko Neo Freerunner. We measure not only overall system power, but the exact breakdown of power consumption by the device's main hardware components. We present this power breakdown for micro-benchmarks as well as for a number of realistic usage scenarios. These results are validated by overall power measurements of two other devices: the HTC Dream and Google Nexus One. We develop a power model of the Freerunner device and analyse the energy usage and battery lifetime under a number of usage patterns. We discuss the significance of the power drawn by various components, and identify the most promising areas to focus on for further improvements of power management. We also analyse the energy impact of dynamic voltage and frequency scaling of the device's application processor.
Evidence for live iron-60 in Semarkona and Chervony Kut: A NanoSIMS study

Introduction: One of the most debated subjects in meteoritics is the time scale of events that occurred during the early history of the solar system. Chronometers based on short lived nuclides, such as Al, Mn, Fe, Pd, I, Sm, were extensively studied during the last decades. Some of them were shown to afford chronological resolutions on the order of a few Ma to less than one Ma [e.g. 1,2]. This considerably helped resolving the sequence of events that occurred since the formation of the first solid objects. Considering the high iron and aluminum contents of meteorites, special attention was devoted to Fe and Al, as they would have been the most powerful heat sources for inducing planetary melting and differentiation. The search for Ni isotopic anomalies produced by the decay of short lived Fe (T1⁄2 = 1.5 Ma) had been successful in the eucrite Chervony Kut [3]. Correlated with the Fe/Ni ratio, Ni excesses were found for several bulk samples. A large 5‰ excess was measured in a "troilite", which, however, does not follow the trend of the bulk samples. While this evidence shows that Fe was alive in the early solar system, the apparent mobility of Ni between the major phases of this meteorite limits the usefulness of the Fe-Ni system as a chronometer. In this report we present an in situ NanoSIMS study of the Fe-Ni system in iron sulfides in the Chervony Kut (CK) eucrite and in the Semarkona (LL3.0) ordinary chondrite. We chose CK to perform a follow-up study on a micro-scale on this highly Ni depleted planetary differentiate [4]. Semarkona was selected because it is a highly unequilibrated chondrite where a disturbance of the Fe-Ni system during parent body processing is assumed to be minimal.
Lead-Antimony Sulfosalts from Tuscany (Italy). XX. Members of the Jordanite–Geocronite Series from the Pollone Mine, Valdicastello Carducci: Occurrence and Crystal Structures

A crystal-chemical study of historical specimens as well as new ones belonging to the jordanite–geocronite series from the Pollone baryte + pyrite ± (Pb-Zn-Ag) ore deposit (Valdicastello Carducci, Apuan Alps, Tuscany, Italy) has been performed. These crystals were collected in quartz extension veins embedded in three different occurrences: (i) baryte + pyrite orebodies; (ii) schist layers interbedded between baryte + pyrite orebodies; and (iii) schists at the contact with pyrite-poor baryte orebodies. Electron-microprobe data indicated the occurrence of three distinct groups of compositions within the sample suite. These correspond to As-bearing geocronite, Sb-rich jordanite, and Sb-bearing jordanite, with mean compositions Pb14Sb3.8As2. 2S23, Pb14Sb2.9As3. 1S23, and Pb14Sb2.6As3. 4S23, respectively. Crystals representative of these different compositions have been investigated through single-crystal X-Ray diffraction studies and their crystal structures have been solved to R1 = 0.078, 0.069, and 0.033, respectively. The unit-cell volume decreases passing through As-bearing geocronite (V = 2149.5(3) A3) to Sb-bearing jordanite (V = 2132.3(3) A3). The As-to-Sb substitution takes place preferentially at the Sb4 site; through the increasing of the Sb content, Sb can substitute As also at the As6 site. According to the structural study of the ore deposit, formation of jordanite–geocronite is subordinated to a late Alpine deformative D2 stage, which permitted in situ remobilization of preexisting sulfide ore in small quartz extension veins. Such a local recrystallization would explain the variability of the As/(As + Sb) ratio of the members of the jordanite series, reflecting the heterogeneity of the orebody.
Quantization effects in biometric systems

The fundamental secret-key rate vs. privacy-leakage rate trade-offs for secret-key generation and transmission for i.i. d. Gaussian biometric sources are determined. These results are the Gaussian equivalents of the results that were obtained for the discrete case by the authors and independently by Lai et al. in 2008. Also the effect that binary quantization of the biometric sequences has on the ratio of the secret-key rate and privacy-leakage rate is considered. It is shown that the squared correlation coefficient must be increased by a factor of π2/4 to compensate for such a quantization action, for values of the privacy-leakage rate that approach zero, when the correlation coefficient is close to zero.