Miracle-dz/UniFAR-FTUs huggingface dataset:
Turbo-Charging Estimate Convergence in DBO

DBO is a database system that utilizes randomized algorithms to give statistically meaningful estimates for the final answer to a multi-table, disk-based query from start to finish during query execution. However, DBO's "time 'til utility" (or "TTU"; that is, the time until DBO can give a useful estimate) can be overly large, particularly in the case that many database tables are joined in a query, or in the case that a join query includes a very selective predicate on one or more of the tables, or when the data are skewed. In this paper, we describe Turbo DBO, which is a prototype database system that can answer multi-table join queries in a scalable fashion, just like DBO. However, Turbo DBO often has a much lower TTU than DBO. The key innovation of Turbo DBO is that it makes use of novel algorithms that look for and remember "partial match" tuples in a randomized fashion. These are tuples that satisfy some of the boolean predicates associated with the query, and can possibly be grown into tuples that actually contribute to the final query result at a later time.
A High-Performance Approach to Model Calibration and Validation

A new model validation approach is presented that integrates parallel processing on high- performance computing clusters with random search algorithms to fit cognitive models to human performance data. The efficiency, accuracy, and non-biasness of this approach surpasses the prevalent manual optimization techniques; results in exceptional model to human data fits; and is available and extendable to other parameterized models, search algorithms, cognitive architectures, and cluster computing resources. Results from testing the validation approach using a prototype cognitive model of a serial subtraction task, the ACT-R cognitive architecture, and 15 individual fits are described.
E‐cadherin controls adherens junctions in the epidermis and the renewal of hair follicles

E‐cadherin is thought to mediate intercellular adhesion in the mammalian epidermis and in hair follicles as the adhesive component of adherens junctions. We have tested this role of E‐cadherin directly by conditional gene ablation in the mouse. We show that postnatal loss of E‐cadherin in keratinocytes leads to a loss of adherens junctions and altered epidermal differentiation without accompanying signs of inflammation. Overall tissue integrity and desmosomal structures were maintained, but skin hair follicles were progressively lost. Tumors were not observed and β‐catenin levels were not strongly altered in the mutant skin. We conclude that E‐cadherin is required for maintaining the adhesive properties of adherens junctions in keratinocytes and proper skin differentiation. Furthermore, continuous hair follicle cycling is dependent on E‐cadherin.
Chlorine dioxide treatment of sisal fibre: Surface lignin and its influences on fibre surface characteristics and interfacial behaviour of sisal fibre/phenolic resin composites

This paper describes an investigation of the influences of chlorine dioxide treatment on fibre surface lignin. The fibre surface characteristics and the interfacial behaviour of the sisal fibre/phenolic resin composites were also studied by SEM, AFM, and XPS. The results show that the surface of the untreated fibre contains a large amount of lignin with granular structure and non-granular structure. The surface lignin concentration is up to 51% for the untreated fibre, and then it decreases to 24% and 20% for fibres treated with 1.5 % and 2.0% chlorine dioxide, respectively. The removal of lignin from the fibre surface can enhance the interfacial strength of the composites, giving rise to increases by 36% and 28% in tensile strength and internal bonding strength. These results indicate that the surface properties of single sisal fibres can be tailored to improve the fibre/resin interface. Chlorine dioxide treatment has potential for surface modification of sisal fibre in engineering the interfacial behaviour of composites.
Rater Cognition: Implications for Validity.

The scoring process is critical in the validation of tests that rely on constructed responses. Documenting that readers carry out the scoring in ways consistent with the construct and measurement goals is an important aspect of score validity. In this article, rater cognition is approached as a source of support for a validity argument for scores based on constructed responses, whether such scores are to be used on their own or as the basis for other scoring processes, for example, automated scoring.
Investigating the Disconnect between Financial Knowledge and Behavior: The Role of Parental Influence and Psychological Characteristics in Responsible Financial Behaviors among Young Adults

type="main" xml:id="joca12069-abs-0001"> Financial knowledge is an essential component in financial decision making; however, knowledge is insufficient to ensure responsible financial behavior. We investigate the weak association between financial knowledge and behavior by simultaneously testing the roles financial knowledge, parental influence, and individual psychological characteristics (self-discipline and thoroughness) play in young adults' financial behaviors. Results from 2,712 respondents from the 1997 National Longitudinal Survey of Youth confirm there is a weak association between financial knowledge and behavior. Parental influence and self-discipline positively associate with responsible financial behavior. We also investigate the moderating role of gender and observe that financial knowledge and parental influence improve women's financial behavior more than men, whereas being thorough has a larger impact among males. These findings suggest that considering social and individual psychological factors in financial education programs could improve program efficiency. The results also highlight the importance of adopting tailored financial education to suit gender differences.
Work and family domain stressors and support: Within‐ and cross‐domain influences on work–family conflict

The purpose of this study is to examine the within- and cross-domain influences of work and family domain stressors and support on two forms of work–family conflict (i.e. WIF: work interference with family, and FIW: family interference with work). To test our hypotheses, we collected multi-source data from 248 Hong Kong employees and their spouses. Among the proposed work domain antecedents of WIF, time commitment and work role expectation were significant. Among the proposed family domain antecedents of FIW, parental demands were significant. Direct cross-domain effects included family role expectation and parental demand on WIF and work role expectation and family-friendly policies on FIW. Tests of the moderating effects of work and family support resulted in support for both within-domain and cross-domain interactions. Implications for researchers and human resource managers are discussed.
In Pursuit of the Expert Pedagogue

Like many others, we believe the observational, correlational, and experimental literature on research on teaching has been very fruitful. From observational and correlational findings, for example, we have determined that the presence of opening homework reviews in mathematics classes are associated with higher achievement. This idea was studied further by creating levels of review and using these levels as variables in experiments. Opening homework reviews were again confirmed as important. Re-
Consenting Agents: Negotiation Mechanisms for Multi-Agent Systems

As distributed systems of computers play an increasingly important role in society, it will be necessary to consider ways in which these machines can be made to interact effectively. Especially when the interacting machines have been independently designed, it is essential that the interaction environment be conducive to the aims of their designers. These designers might, for example, wish their machines to behave efficiently, and with a minimum of overhead required by the coordination mechanism itself. The rules of interaction should satisfy these needs, and others. Formal tools and analysis can help in the appropriate design of these rules. We here consider how concepts from fields such as decision theory and game theory can provide standards to be used in the design of appropriate negotiation and interaction environments. This design is highly sensitive to the domain in which the interaction is taking place. Different interaction mechanisms are suitable for different domains, if attributes like efficiency and stability are to be maintained.
Incorporation of National Universities in Korea: Dynamic Forces, Key Features, and Challenges

Education reform has become more popular than ever, and the incorporation of public institutions of higher education is one such reform. Eventually, Korea will see its national universities being incorporated. The legislature passed a law on March 7, 2007 that requires a new national university to be established as a National University Corporation. Meanwhile, the Ministry of Education and Human Resources Development is finalising the general law of the incorporation of national universities. This paper examines the driving forces and key features of the incorporation of national universities in Korea. The Korean model of incorporation follows global trends and shares key features with other countries, especially Japan. Nonetheless, its unique national and local context brings new elements to the general framework of incorporation. This paper focuses in particular on how the dynamic interactions among global, national and local forces influence the shape and the adoption of incorporation. It also discusses the emerging patterns and future challenges in the incorporation of national universities in Korea.
When prey turns predatory: Workplace bullying as a predictor of counteraggression/bullying, coping, and well-being

This study examined workplace bullying through a self-report survey of a sample of 180 adults from diverse occupations and industries in Canada. It was predicted that bullying by others would lead to counteraggressive/bullying behaviours and certain coping responses. In turn, coping with bullying was predicted to impact burnout and well-being. Three different forms of bullying were identified: verbal abuse, work being undermined, and belittlement. The results of the structural relations analyses reveal that both verbal abuse and work being undermined were related to reciprocal forms of bullying. In addition, whereas verbal abuse was related to problem solving as a way of coping with bullying, belittlement was related to self-doubt, indirect/passive coping, and ignoring the bully. Self-doubt was, in turn, related to burnout and symptoms of ill-health.
Reasons Dynamic Addresses Change

Applications often use IP addresses as end host identifiers based on the assumption that IP addresses do not change frequently, even when dynamically assigned. The validity of this assumption depends upon the duration of time that an IP address continues to be assigned to the same end host, and this duration in turn, depends upon the various causes that can induce the currently assigned IP address to change. In this work, we identify different causes that can lead to an address change and analyze their effect in ISPs around the world using data gathered from 3,038 RIPE Atlas probes hosted across 929 ASes and 156 countries across all 12 months of 2015. Our observations reveal information about ISP practices, outages, and dynamic address prefixes. For example, we found 20 ISPs around the world that periodically reassign addresses after a fixed period, typically a multiple of 24 hours. We also found that address changes are correlated with network and power outages occurring at customer premises equipment (CPE) devices. Furthermore, almost half of the address changes we observed on the same CPE were to an entirely different BGP-routed prefix.
Implicit Relational Memory in Young and Older Adults

Abstract. Older adults do not perform as well as young adults in explicit episodic memory tasks that require the formation and retrieval of new associations. Relatively few studies have investigated the effects of older adults' associative deficit on implicit-memory performance. After introducing the reader to the area of implicit-memory research at large, the authors review studies that have investigated young and older adults' performance in implicit associative memory tasks. Core theoretical issues and methodological challenges are discussed.
Functional regulation of D‐type cyclins by insulin‐like growth factor‐I and serum in multiple myeloma cells

D‐type cyclin genes are universally dysregulated in multiple myeloma (MM), but the functional consequences are unclear as D‐type cyclin gene expression does not correlate with proliferation or disease progression. We examined the protein expression and regulation of D‐type cyclins and other cell cycle regulators in human myeloma cell lines and primary CD138+ plasma cells (PCs). Cyclin D1, cyclin D2, cyclin dependent kinase (CDK) 4, CDK6, p27Kip1 p18INK4C and retinoblastoma protein (pRb) were absent in normal PCs, heterogeneously expressed in primary MM cells and positively correlated with disease activity/progression. Cyclins D1 and D2 complexed with both CDK4 and CDK6, suggesting that both phosphorylate pRb in MM. Furthermore, cyclin D2 expressed via either t(14;16) or t(4;14) IgH translocations was functionally upregulated by fetal calf serum or insulin‐like growth factor‐I, leading to pRb phosphorylation and cell cycle entry/progression, and in some cases inversely correlated with p27Kip1. However, pRb phosphorylation and cell cycle progression mediated by cyclin D1 expressed via t(11;14) was less dependent on exogenous stimuli. These data suggest that the presence or absence of specific IgH translocations underlying aberrant D‐type cyclin expression may influence their response to mitogens in the bone marrow microenvironment. We showed for the first time that D‐type cyclins are functionally regulated in MM, differentially responsive to exogenous growth factors and upregulated with disease progression.
Inability to enter S phase and defective RNA polymerase II CTD phosphorylation in mice lacking Mat1

The trimeric Cdk7–cyclin H–Mat1 complex comprises the kinase subunit of basal transcription factor TFIIH and has been shown to function as a cyclin‐dependent kinase (Cdk)‐activating kinase. Herein we report that disruption of the murine Mat1 gene leads to peri‐implantation lethality coincident with depletion of maternal Mat1 protein. In culture, Mat1−/− blastocysts gave rise to viable post‐mitotic trophoblast giant cells while mitotic lineages failed to proliferate and survive. In contrast to wild‐type trophoblast giant cells, Mat1−/− cells exhibited a rapid arrest in endoreduplication, which was characterized by an inability to enter S phase. Additionally, Mat1−/− cells exhibited defects in phosphorylation of the C‐terminal domain (CTD) of RNA polymerase II on both Ser5 and Ser2 of the heptapeptide repeat. Despite this, Mat1−/− cells demonstrated apparent transcriptional and translational integrity. These data indicate an essential role for Mat1 in progression through the endocycle and suggest that while Mat1 modulates CTD phosphorylation, it does not appear to be essential for RNA polymerase II‐mediated transcription.
Capital Investment , Option Generation , and Stock Returns

We examine the effects of option-generating capital investments on subsequent stock returns. Firms undertake such investments to develop future growth options by, for example, investing in long-range research facilities and acquiring patents to build their long-run ability to generate and commercialize innovations (innovative capacity). Theoretically, option-generating investments can raise expected returns in contrast to the widely documented negative cross-sectional relation of capital investments and subsequent returns. We find that the cross-sectional relation of asset growth and various measures of capital investment to subsequent returns is significantly positive (by the fifth year after investment) for large firms that have high R&D intensity or are located in real options rich technology-driven industries. In contrast, low R&D intensity firms or small high R&D intensity firms show negative effects of capital investments on subsequent returns. The role of firm size is consistent with the view that capital investments can raise expected returns by generating innovations of substantial commercial value that will require non-trivial and risky development investment that is more affordable by large firms. * We thank Hengjie Ai, Heitor Almeida, Jonathan Berk, Jeffrey Brown, Louis Chan, Jaewon Choi, Prachi Deuskar, Wayne Ferson, Michael Fishman, Slava Fos, Paolo Fulghieri, Andrew Grant, Richard Green, Eric Ghysels, Dirk Hackbarth, David Hirshleifer, Gerard Hoberg, Ravi Jagannathan, Elvis Jarnecic, Dirk Jenter, Charles Kahn, Dana Kiku, Nisan Langberg, Michael Lemmon, Neil Pearson, Graham Partington, George Pennacchi, Gordon Phillips, Josh Pollet, Jeffrey Pontiff, Michael Roberts, Jeremy Stein, Sheridan Titman, Selale Tuzel (discussant), Neng Wang, Joakim Westerholm, Toni Whited, Jianfeng Yu, Lu Zhang, Guofu Zhou, seminar participants at University of Illinois (Urbana-Champagne), the USC Conference on Financial Economics and Accounting, and University of Sydney for helpful comments, and Lu Zhang for sharing the investment and profitability factors returns. a C.T. Bauer College of Business, University of Houston, Houston, TX 77204. Email: pkumar@uh.edu b Rady School of Management, University of California, San Diego, La Jolla, CA 92093. Email: dongmei@ucsd.edu
The Use of Water Lettuce (Pistia Stratiotes L.) for Rhizofiltration of a Highly Polluted Solution by Cadmium and Lead

The effectiveness of heavy metal uptake from contaminated nutrient solution by four aquatic macrophytes (Pistia stratiotes L., Salvinia auriculata Aubl., Salvinia minima Baker, and Azolla filiculoides Lam) was estimated in this study. The influence of cadmium (3.5 mg L−1 and 10.5 mg L−1) and lead (25 mg L−1 and 125 mg L−1) on the stress symptoms was observed through the determination of chlorophyll content and transpiration rate over 14 days of the experiment. The results of the present study showed extreme reductions in Cd and Pb concentrations in solution during the first 4 days. The accumulation of Pb in plant tissues was the highest during the first 4 days and was more than 10 times higher in the roots (42,862 mg kg−1) than in the leaves (3,867 mg kg−1). The accumulation of Cd slowly increased and was the highest at the end of the experiment. Concentrations in roots (3,923 mg kg−1) were roughly 6 times higher than in the leaves (624 mg kg−1). Results showed significant decrease in the transpiration rate at Pb treatment and a significant increase at Cd treatment during 48 hours of exposition.
Planck 2015 results - X. Diffuse component separation: Foreground maps

Planck has mapped the microwave sky in temperature over nine frequency bands between 30 and 857 GHz and in polarization over seven frequency bands between 30 and 353 GHz in polarization. In this paper we consider the problem of diffuse astrophysical component separation, and process these maps within a Bayesian framework to derive an internally consistent set of full-sky astrophysical component maps. Component separation dedicated to cosmic microwave background (CMB) reconstruction is described in a companion paper. For the temperature analysis, we combine the Planck observations with the 9-yr Wilkinson Microwave Anisotropy Probe (WMAP) sky maps and the Haslam et al. 408 MHz map, to derive a joint model of CMB, synchrotron, free-free, spinning dust, CO, line emission in the 94 and 100 GHz channels, and thermal dust emission. Full-sky maps are provided for each component, with an angular resolution varying between 7.5 and 1deg. Global parameters (monopoles, dipoles, relative calibration, and bandpass errors) are fitted jointly with the sky model, and best-fit values are tabulated. For polarization, the model includes CMB, synchrotron, and thermal dust emission. These models provide excellent fits to the observed data, with rms temperature residuals smaller than 4μK over 93% of the sky for all Planck frequencies up to 353 GHz, and fractional errors smaller than 1% in the remaining 7% of the sky. The main limitations of the temperature model at the lower frequencies are internal degeneracies among the spinning dust, free-free, and synchrotron components; additional observations from external low-frequency experiments will be essential to break these degeneracies. The main limitations of the temperature model at the higher frequencies are uncertainties in the 545 and 857 GHz calibration and zero-points. For polarization, the main outstanding issues are instrumental systematics in the 100–353 GHz bands on large angular scales in the form of temperature-to-polarization leakage, uncertainties in the analogue-to-digital conversion, and corrections for the very long time constant of the bolometer detectors, all of which are expected to improve in the near future.
, capacity in individuals with Parkinson ' s disease muscle mass , mitochondrial function , and physical Novel , high-intensity exercise prescription improves

116:582-592, 2014. First published 9 January 2014; J Appl Physiol Windham and Marcas M. Bamman Douglas R. Moellering, S. Craig Tuggle, Jeri Y. Williams, Laura Lieb, Samuel T. Neil A. Kelly, Matthew P. Ford, David G. Standaert, Ray L. Watts, C. Scott Bickel, capacity in individuals with Parkinson's disease muscle mass, mitochondrial function, and physical Novel, high-intensity exercise prescription improves
Pensieve: Non-Intrusive Failure Reproduction for Distributed Systems using the Event Chaining Approach

Complex and unforeseen failures in distributed systems must be diagnosed and replicated in a development environment so that developers can understand the underlying problem and verify the resolution. System logs often form the only source of diagnostic information, and developers reconstruct a failure using manual guesswork. This is an unpredictable and time-consuming process which can lead to costly service outages while a failure is repaired. This paper describes Pensieve, a tool capable of reconstructing near-minimal failure reproduction steps from log files and system bytecode, without human involvement. Unlike existing solutions that use symbolic execution to search for the entire path leading to the failure, Pensieve is based on the Partial Trace Observation, which states that programmers do not simulate the entire execution to understand the failure, but follow a combination of control and data dependencies to reconstruct a simplified trace that only contains events that are likely to be relevant to the failure. Pensieve follows a set of carefully designed rules to infer a chain of causally dependent events leading to the failure symptom while aggressively skipping unrelated code paths to avoid the path-explosion overheads of symbolic execution models.
YbeY, a Heat Shock Protein Involved in Translation in Escherichia coli

ABSTRACT Here we provide evidence that YbeY, a conserved heat shock protein with unknown function, is involved in the translation process. ybeY deletion mutants are temperature sensitive and have a significantly reduced thermotolerance. Nonetheless, there appears to be no damage of the protein quality control of mature polypeptides, as the levels of chaperones and proteases are normal and there is no accumulation of aggregates. Rather, the mutation results in a significant reduction in the level of polysomes, and upon a shift to a restrictive temperature (42°C), there is an immediate and severe slowdown of translation. Taken together, the data indicate that YbeY is an important factor for bacterial translation even at 37°C but becomes essential at high temperatures.