Miracle-dz/UniFAR-FTUs huggingface dataset:
Self-Confirming Price Prediction for Bidding in Simultaneous Second-Price Sealed-Bid Auctions

Bidding strategies for simultaneous interdependent markets typically rely on price predictions to manage uncertainty across markets. Previous work on simultaneous ascending auctions has found selfconfirming price predictions particularly effective in dealing with the exposure problem. We adapt this approach to a setting with simultaneous oneshot (SPSB) auctions, producing self-confirming prediction versions of a range of heuristic strategies previously proposed in the literature. An in-depth simulation study in service of empirical game-theoretic analysis finds strong support for the BidEvaluator family of strategies in this setting.
Active site dynamics of acyl‐chymotrypsin

The motions of water molecules, the acyl moiety, the catalytic triad, and the oxyanion binding site of acyl‐chymotrypsin were studied by means of a stochastic boundary molecular dynamics simulation. A water molecule that could provide the nucleophilic OH− for the deacylation stage of the catalysis was found to be trapped between the imidazole ring of His‐57 and the carbonyl carbon of the acyl group. It makes a hydrogen bond with the Nε2 of His‐57 and is heldin place through a network of hydrogen‐bonded water molecules in theactive site. The water molecule was found as close as 2.8 Å to the carbonyl carbon. This appears to be due to the constraints imposed by nonbonded interaction in the active site. Configurations were found in which one hydrogen of the trapped water shared a bifurcated hydrogen bond with His‐57‐Nε2 and Ser‐195‐0γ with the water oxygen very close to the carbonyl carbon. The existence of such a water molecule suggests that large movement of the His‐57 imidazole ring between positions suitable for providing general‐base catalyzed assistance and for providing general‐acid catalyzed assistance may notbe required during the reaction. The simulation indicates that the side chains of residues involved in catalysis (i.e., His‐57, Ser‐195, and Asp‐102) are significantly less flexible than other side chains in the protein. The 40% reduction in rms fluctuations is consistent with a comparable reduction calculated from the temperature factors obtained in the X‐ray crystal‐lographic data of γ‐chymotrypsin. The greater rigidity of active site residues seems to result from interconnected hydrogen bonding networks among the residues and between the residues and the solvent water in the active site. © Wiley‐Liss, Inc.
Non-Convex Low-Rank Approximation for Image Denoising and Deblurring

SUMMARY Recovery of low-rank matrices has seen signiﬁcant activity in many areas of science and engineering, motivated by theoretical re-sults for exact reconstruction guarantees and interesting practical applications. Recently, numerous methods incorporated the nuclear norm to pursue the convexity of the optimization. However, this greatly restricts its capability and ﬂexibility in dealing with many practical problems, where the singular values have clear physical meanings. This paper studies a generalized non-convex low-rank approximation, where the singular values are in l p (cid:0) heuristic. Then speciﬁc results are derived for image restoration, including denoising and deblurring. Extensive experimental results on natu-ral images demonstrate the improvement of the proposed method over the recent image restoration methods.
A Reconfigurable Resonant Coil for Range Adaptation Wireless Power Transfer

To widen the range of a magnetically coupled wireless power transfer system, we propose a novel reconfigurable resonant coil. This device consists of a series of subcoils that use switches to control the number of turned-on subcoils. With this design, both the coupling coefficient between coils and the quality factor of the proposed coil can be dynamically tuned when the distance between the transmit and receive coils changes. Thus, the proposed coil system increases the efficient power transfer range compared to a conventional resonant system. In this work, we replace the first coil in a four-coil system with the proposed coil. This coil uses six switches to change the number of series subcoils from six to one as the distance between the transmit and receive coils increases. A theoretical analysis demonstrates how to properly design and configure the proposed coil. Experimental results show the range at which the system achieves 70% efficiency or higher increases by 120% compared to the conventional system without the proposed method. The proposed system keeps high efficiency when the load varies from 40 to 300 Ω.
Evaluating Structural Similarity in XML Documents

XML documents on the web are often found without DTDs, particularly when these documents have been created from legacy HTML. Yet having knowledge of the DTD can be valuable in querying and manipulating such documents. Recent work (cf. [10]) has given us a means to (re-)construct a DTD to describe the structure common to a given set of document instances. However, given a collection of documents with unknown DTDs, it may not be appropriate to construct a single DTD to describe every document in the collection. Instead, we would wish to partition the collection into smaller sets of “similar” documents, and then induce a separate DTD for each such set. It is this partitioning problem that we address in this paper. Given two XML documents, how can one measure structural (DTD) similarity between the two? We deﬁne a tree edit distance based measure suited to this task, taking into account XML issues such as optional and repeated sub-elements. We develop a dynamic programming algorithm to ﬁnd this distance for any pair of documents. We validate our proposed distance measure experimentally. Given a collection of documents derived from multiple DTDs, we can compute pair-wise distances between documents in the collection, and then use these distances to cluster the documents. We ﬁnd that the resulting clusters match the original DTDs almost perfectly, and demonstrate performance superior to alternatives based on previous proposals for measuring similarity of trees. The overall algorithm runs in time that is quadratic in document collection size, and quadratic in the combined size of the two documents involved in a given pair-wise distance calculation.
Generalized Injection Shift Factors

Generalized injection shift factors (ISFs) are the sensitivities of active-power line flows to active-power bus injections. They are computed without designating an artifactual slack bus in the power network; therefore, conceptually, they reflect sensitivities of power flows more accurately than conventional ISFs, the values of which depend on the choice of the slack bus. This paper derives analytical closed-form expressions for generalized ISFs from a perturbative analysis of the ac circuit equations. In addition, they are computed from a system of linear equations that arise from high-frequency synchronized measurements collected from phasor measurement units. As an application, generalized ISFs are used to predict active-power line flows during the transient period following a contingency by leveraging inertial and governor power flows over appropriate time horizons.
The content of the principal protein target of a hepatic carcinogen in liver tumors.

It has been variously suggested that chemical carcinogens interact with a protein regulator of cell growth, ultimately causing neoplastic cells to arise in which the protein target of the carcinogen is reduced or absent. As a test of the target reduction aspect of these hypotheses, the amount of the principal protein target of a hepatic carcinogen was determined immunologically in liver tumors caused by that carcinogen. Specific antiserum against the principal liver protein target of a hepatic azocarcinogen was obtained by immunization with the highly purified liver azoprotein isolated from rats fed 3′-methyl-4-dimethylaminoazobenzene for 15 to 18 days. The amount of the target protein in serially diluted liver and liver tumor cytosols was measured by gel double immunodiffusion with a precision of 10% (S.D.) or less. Little difference in the relative content of the principal target protein was found in the liver cytosols of normal rats and of those fed a diet containing or lacking the azocarcinogen for 15 to 18 days. In contrast, in 15 cytosols of primary liver tumors of 15 rats fed the azocarcinogen until sacrifice, the content of protein target of azocarcinogen was 6 to 31% (average, 18 ± 8% S.D.) of that present in normal rat liver cytosol. In 7 cytosols of livers around tumors, the quantity of target protein was 66 to 116% (average, 83 ± 19% S.D.). An additional series of assays examined 4 types of transplanted hepatomas that were originally caused by fluorenyl amide and biphenyl amide carcinogens. These carcinogens probably have principal target proteins that are different from those of azocarcinogens. Three kinds of well-differentiated hepatomas had mean levels (85 to 98%) of the protein target of azocarcinogens like that of normal liver. One type of poorly differentiated hepatoma had < 3%. The finding of a reduction in amount of principal protein target of a carcinogen in primary tumors caused by that carcinogen, and not in transplanted differentiated tumors caused by other carcinogens, suggests two alternatives, namely, either the reduction need be specifically that of the target protein of the carcinogen which caused the neoplasm or it is due to other causes, e.g. , tumor progression, and therefore is not essential for neoplasia per se . These alternatives are separate from the more basic question of the role (if any) of the carcinogen-protein interaction in chemical carcinogenesis, possibly as part of a mechanism not involving target protein depletion in tumors.
Molecular Analysis of the Saccharomyces cerevisiae YHR076w Gene

Our results demonstrate that open reading frame (ORF) YHR076w on chromosome VIII of Saccharomyces cerevisiae that was previously described as a hypothetical gene is expressed. This ORF is transcribed as an mRNA of approximately 1,100 nucleotides. A 41.2‐kDa polypeptide and three others predicted to be modified forms of Yhr076wp are detected by Western blot with a Yhr076wp‐specific antibody. Promoter activity assays indicate that YHR076w transcription is regulated by carbon source and primarily by ethanol. Consistent with this observation, we have identified two potential ADR1 regulatory elements in the YHR076w upstream DNA region. Potential YAP1 and HSP elements are also identified in this region, suggesting other forms of regulation. YHR076w knockout strains do not exhibit any measurable growth or morphological phenotype under any conditions tested. However, increased YHR076w gene dosage confers a growth advantage to both wildtype and YHR076w knockout strains on 2% ethanol or 2% galactose medium in a low O2 growth environment. The fluorescence emitted by a Yhr076wp protein fusion to A. aquorin GFP colocalizes with the mitochondria in vivo.
On Bootstrapping Machine Learning Performance Predictors via Analytical Models

Performance modeling typically relies on two antithetic methodologies: white box models, which exploit knowledge on system's internals and capture its dynamics using analytical approaches, and black box techniques, which infer relations among the input and output variables of a system based on the evidences gathered during an initial training phase. In this paper we investigate a technique, which we name Bootstrapping, which aims at reconciling these two methodologies and at compensating the cons of the one with the pros of the other. We thoroughly analyze the design space of this gray box modeling technique, and identify a number of algorithmic and parametric trade-offs which we evaluate via two realistic case studies, a Key-Value Store and a Total Order Broadcast service.
Fractal characteristics and spatial variation of county land use

Based on the remote sensing image interpretation data of land use of Ningjin county in 2008, using the county and township scale as the basic measuring and calculating unit, through the calculation of fractal dimension of cultivated land, garden and residential site which belong to this county and all its towns, the results can be get. The result shows that, within unitscale of county, the fractal structures which belong to different land groups do exist, the same as the obvious difference in fractal dimension value of different land groups; the characteristics of fractal structure of different land groups with unit-scale of township still can be clearly seen, and the measured results of typical land groups, such as cultivated field, garden and residential site, showed obvious spatial variation. The variety of fractal dimension values of different land groups and their spatial variation existed in different townships proves that the way of land use and its spatial structure was clearly affected by natural condition and economic development; it also shows that fractal characteristics and spatial variation can provide a good guidance on indicating the characteristics of land use when the measuring and calculating unit is similar to these areas such as county or towns, and it also can provide a quantitative description indicator for adjusting land-use structure, optimizing land-use allocation and programming land-use blueprint in areas where were smaller than county unit.
Effects of plant diversity, N fertilization, and elevated carbon dioxide on grassland soil N cycling in a long‐term experiment

The effects of global environmental changes on soil nitrogen (N) pools and fluxes have consequences for ecosystem functions such as plant productivity and N retention. In a 13‐year grassland experiment, we evaluated how elevated atmospheric carbon dioxide (CO2), N fertilization, and plant species richness alter soil N cycling. We focused on soil inorganic N pools, including ammonium and nitrate, and two N fluxes, net N mineralization and net nitrification. In contrast with existing hypotheses, such as progressive N limitation, and with observations from other, often shorter, studies, elevated CO2 had relatively static and small, or insignificant, effects on soil inorganic N pools and fluxes. Nitrogen fertilization had inconsistent effects on soil N transformations, but increased soil nitrate and ammonium concentrations. Plant species richness had increasingly positive effects on soil N transformations over time, likely because in diverse subplots the concentrations of N in roots increased over time. Species richness also had increasingly positive effects on concentrations of ammonium in soil, perhaps because more carbon accumulated in soils of diverse subplots, providing exchange sites for ammonium. By contrast, subplots planted with 16 species had lower soil nitrate concentrations than less diverse subplots, especially when fertilized, probably due to greater N uptake capacity of subplots with 16 species. Monocultures of different plant functional types had distinct effects on N transformations and nitrate concentrations, such that not all monocultures differed from diverse subplots in the same manner. The first few years of data would not have adequately forecast the effects of N fertilization and diversity on soil N cycling in later years; therefore, the dearth of long‐term manipulations of plant species richness and N inputs is a hindrance to forecasting the state of the soil N cycle and ecosystem functions in extant plant communities.
Dating Color Images with Ordinal Classification

This paper proposes a new approach for automatically dating a photograph, based solely on its content. Building on recent advances in computer vision, the images are first described by a set of features. Then, the age group of every image is predicted by a classifier trained with annotated data. The key strength of our approach -- which makes it perform better than existing ones -- is the introduction of an ordinal classification framework, particularly adapted to the type of data to be predicted (age groups). The approach is validated on a recent challenging dataset for which it produces state-of-the-art results.
Identifying Goal-oriented and Explorative Information Search Patterns

One of the latest trends of ubiquitous Information Systems is the use of smartglasses, such as Google Glass or Epson Moverio BT-200 that are connected to the Internet and are augmenting reality with a head-up display. In order to develop recommendation agents (RAs) for the use at the point of sale, researchers have proposed to integrate a portable eye tracking system into such smartglasses (Pfeiffer et al. 2013). This would allow providing the customer with relevant product information and alternative products by making use of the customer’s information acquisition processes recorded during the purchase decision.
Decreasing fall risk in spinocerebellar ataxia

[Purpose] Spinocerebellar ataxia consists of a group of autosomal dominant disorders that cause progressive degeneration, mainly in the cerebellum and its connections. Falls, which are a significant concern of this condition, reduce patients’ mobility, deteriorate their health and have physical and social consequences. The aim of this study was to test the effectiveness of a modified protocol for improving balance and diminishing the fall risk of spinocerebellar ataxia patients exclusively. [Subjects and Methods] Exercises aiming to improve static and dynamic balance, whole body movements, measures to prevent falls and falling strategies were performed twice per week for four weeks by 11 spinocerebellar ataxia patients. Balance was evaluated using the Berg Balance Scale. [Results] The results show that there was a significant increase in Berg Balance Scale scores after the interventions (Wilcoxon p=0.0034). [Conclusion] This study demonstrated that the modified protocol is effective at reducing the fall risk of spinocerebellar ataxia patients. This protocol may be a useful option for appropriately coping with falls caused by spinocerebellar ataxia.
Soulstealers: The Chinese Sorcery Scare of 1768

* Introduction * A Time of Turmoil * Model Rulers * Reforming into Collapse * The Song in the South * Three Doctrines * Education and Examination * Life Cycle Rituals * Exploring the World Within and Without * Transforming the Capitals * A Changing World of Production * Money and Taxes * Private Lives in the Public Sphere * Conclusion * Dynastic Rulers * Measures * Pronunciation Guide * Notes * Bibliography * Acknowledgments * Index
Interplanetary space weather effects on Lunar Reconnaissance Orbiter avalanche photodiode performance

Space weather is a major concern for radiation‐sensitive space systems, particularly for interplanetary missions, which operate outside of the protection of Earth's magnetic field. We examine and quantify the effects of space weather on silicon avalanche photodiodes (SiAPDs), which are used for interplanetary laser altimeters and communications systems and can be sensitive to even low levels of radiation (less than 50 cGy). While ground‐based radiation testing has been performed on avalanche photodiode (APDs) for space missions, in‐space measurements of SiAPD response to interplanetary space weather have not been previously reported. We compare noise data from the Lunar Reconnaissance Orbiter (LRO) Lunar Orbiter Laser Altimeter (LOLA) SiAPDs with radiation measurements from the onboard Cosmic Ray Telescope for the Effects of Radiation (CRaTER) instrument. We did not find any evidence to support radiation as the cause of changes in detector threshold voltage during radiation storms, both for transient detector noise and long‐term average detector noise, suggesting that the approximately 1.3 cm thick shielding (a combination of titanium and beryllium) of the LOLA detectors is sufficient for SiAPDs on interplanetary missions with radiation environments similar to what the LRO experienced (559 cGy of radiation over 4 years).
Application of the Dengue Virus NS1 Antigen Rapid Test for On-Site Detection of Imported Dengue Cases at Airports

ABSTRACT We used the dengue virus NS1 antigen (Ag) rapid test for on-site detection of imported dengue cases at airports. Among 22 positive cases of dengue identified from 850 patients with a fever suspected to have dengue, 17 were NS1 Ag test positive. These findings demonstrate the usefulness of the NS1 Ag rapid test in screening imported dengue cases at airports.
Effect of two different extracts of red maca in male rats with testosterone-induced prostatic hyperplasia.

AIM To determine the effect of two different extracts of red maca in male rats. METHODS Prostatic hyperplasia was induced in male rats with testosterone enanthate (TE). The study comprised six groups: one control group (group 1), one group treated with TE (group 2), two groups treated with TE and aqueous extract of red maca (groups 3 and 4), one group treated with hydroalcoholic extract of red maca (group 5) and one group treated with finasteride (0.1 mg, group 6). Differences in the aqueous extract dependent on the length of time of boiling, whether for 2 or 3 hours, for groups 3 and 4 was assessed. Extracts of red maca contained 0.1 mg of benzylglucosinolate. Thereafter, a dose-response effect of different doses of benzylglucosinolates (0.02-0.08 mg) in red maca extracts was assessed. RESULTS Prostate weight was similar in rats treated with freeze-dried aqueous extract of red maca prepared after 2 and 3 hours of boiling. Freeze-dried aqueous extract of red maca, hydroalcoholic extract of red maca and finasteride reduced prostate weight in rats with prostatic hyperplasia. No difference was observed between the data obtained from aqueous extract or hydroalcoholic extract of red maca. A dose dependent reduction of prostate weight was observed with the increase of the dose of benzylglucosinolates in red maca extracts. CONCLUSION The present study showed that hydroalcoholic or aqueous extract of red maca containing 0.1 mg of benzylglucosinolate can reduce prostate size in male rats in which prostatic hyperplasia had been induced by TE.
Assess Sleep Stage by Modern Signal Processing Techniques

In this paper, two modern adaptive signal processing techniques, empirical intrinsic geometry and synchrosqueezing transform, are applied to quantify different dynamical features of the respiratory and electroencephalographic signals. We show that the proposed features are theoretically rigorously supported, as well as capture the sleep information hidden inside the signals. The features are used as input to multiclass support vector machines with the radial basis function to automatically classify sleep stages. The effectiveness of the classification based on the proposed features is shown to be comparable to human expert classification-the proposed classification of awake, REM, N1, N2, and N3 sleeping stages based on the respiratory signal (resp. respiratory and EEG signals) has the overall accuracy 81.7% (resp. 89.3%) in the relatively normal subject group. In addition, by examining the combination of the respiratory signal with the electroencephalographic signal, we conclude that the respiratory signal consists of ample sleep information, which supplements to the information stored in the electroencephalographic signal.
FIP1/RCP Binding to Golgin-97 Regulates Retrograde Transport from Recycling Endosomes to the trans-Golgi Network

This study shows that Rab11 and its binding protein FIP1 are required for retrograde delivery of TGN38 and Shiga toxin from early/recycling endosomes to the TGN. We also demonstrate that Golgin-97 as a FIP1-binding protein and that this binding regulates the targeting of retrograde transport vesicles to the TGN.