gebhart/patrepeval huggingface dataset:
Reference-based person re-identification (2013)

Person re-identification refers to recognizing people across non-overlapping cameras at different times and locations. Due to the variations in pose, illumination condition, background, and occlusion, person re-identification is inherently difficult. In this paper, we propose a reference-based method for across camera person re-identification. In the training, we learn a subspace in which the correlations of the reference data from different cameras are maximized using Regularized Canonical Correlation Analysis (RCCA). For re-identification, the gallery data and the probe data are projected into the RCCA subspace and the reference descriptors (RDs) of the gallery and probe are constructed by measuring the similarity between them and the reference data. The identity of the probe is determined by comparing the RD of the probe and the RDs of the gallery. Experiments on benchmark dataset show that the proposed method outperforms the state-of-the-art approaches.
Probing the Transition to Dataset-Level Privacy in ML Models Using an Output-Specific and Data-Resolved Privacy Profile (2023)

Differential privacy (DP) is the prevailing technique for protecting user data in machine learning models. However, deficits to this framework include a lack of clarity for selecting the privacy budget $ε$ and a lack of quantification for the privacy leakage for a particular data row by a particular trained model. We make progress toward these limitations and a new perspective by which to visualize DP results by studying a privacy metric that quantifies the extent to which a model trained on a dataset using a DP mechanism is ``covered" by each of the distributions resulting from training on neighboring datasets. We connect this coverage metric to what has been established in the literature and use it to rank the privacy of individual samples from the training set in what we call a privacy profile. We additionally show that the privacy profile can be used to probe an observed transition to indistinguishability that takes place in the neighboring distributions as $ε$ decreases, which we suggest is a tool that can enable the selection of $ε$ by the ML practitioner wishing to make use of DP.
Towards a Fluid-Structure Interaction Solver for Problems with Large Deformations Within the Open-Source SU2 Suite (2016)

© 2015 American Institute of Aeronautics and Astronautics.This paper describes a new framework for Fluid-Structure Interaction (FSI) modelling within the open-source code SU2. SU2 has been developed to solve complex, multi-physics problems described by Partial Differential Equations (PDEs), with an emphasis on problems involving aerodynamic shape optimization. Due to its modularity, the code provides an appropriate infrastructure for the solution of physical problems in several disciplines. This work provides SU2 with new tools that expand its capabilities in the fields of structural analysis and FSI. The focus will be on geometrically-nonlinear deformable solids in low-speed external ows. A Finite Element (FE) structural solver, able to deal with geometrical and material non-linearities in a static and a dynamic setting, has been built within the framework of SU2 alongside the existing solvers. Following the original object-oriented architecture in C++, a new structure compliant with the CFD solver has been developed. These new features will serve as a basis for future developments of FE-based strategies for the solution of PDEs. The structural solver has been coupled with the original uid solver in SU2 using a partitioned approach. The structure of the code was fully recast to allow analysis across multiple zones and physical problems, currently limited to problems involving uid and structural analysis. Both loosely-and strongly-coupled strategies are available for the solution of the coupled FSI problem. Finally, the validity of the implementations is assessed by studying the behavior of a rigid square with a exible cantilever at low Reynolds number. The results obtained demonstrate the capabilities of these new developments and further address the physics behind this benchmark problem.
Convergence Behavior of LDPC Decoding and Application to Early Termination (2018)

The iterative algorithms employed to decode Low-Density Parity-Check (LDPC) codes are not guaranteed to converge to a valid code word for every receive word. The goal of Early Termination (ET) is to prevent the waste of resources in such cases. In this paper, we conduct an analysis of the suitability of ET criteria by tracking the evolution of parameters available from decoder-internal states. We find that the commonly selected parameters, e.g., the mean Log-Likelihood Ratio (LLR) magnitude or the fraction of satisfied parity checks, result in similar probabilities of detecting non-converging receive words. We propose a novel criterion for Early Give-Up (EGU) and evaluate its performance using a cost metric based on the retransmission of individual code blocks initiated by higher-layer protocols.
Strategies and tools for whole genome alignments - eScholarship (2002)

The availability of the assembled mouse genome makes possible, for the first time, an alignment and comparison of two large vertebrate genomes. We have investigated different strategies of alignment for the subsequent analysis of conservation of genomes that are effective for different quality assemblies. These strategies were applied to the comparison of the working draft of the human genome with the Mouse Genome Sequencing Consortium assembly, as well as other intermediate mouse assemblies. Our methods are fast and the resulting alignments exhibit a high degree of sensitivity, covering more than 90 percent of known coding exons in the human genome. We have obtained such coverage while preserving specificity. With a view towards the end user, we have developed a suite of tools and websites for automatically aligning, and subsequently browsing and working with whole genome comparisons. We describe the use of these tools to identify conserved non-coding regions between the human and mouse genomes, some of which have not been identified by other methods.
Repeat balloon dilation of congenital valvar aortic stenosis: Immediate results and midterm outcome (1999)

While balloon dilation (BD) has become the initial treatment for congenital valvar aortic stenosis (CVAS) at many institutions, repeat BD for recurrent obstruction has been reported only in a few. Between January 1985 and December 1996, 298 patients (70 neonates) underwent BD, 34 of whom underwent a repeat BD without mortality. A greater proportion of neonates had a repeat BD (26% vs. 8%, P < 0.001). At repeat BD (1 day–7.5 years post initial BD), the mean peak-to-peak gradient was reduced from 67 ± 24 to 36 ± 16 mm Hg (P < 0.0001). Aortic regurgitation (AR) increased immediately in 26%, being moderate or more in 24%. During a mean follow-up of 5.2 years, there was one surgically related death. Of the 33 survivors, 6 had surgery for residual stenosis and/or AR. Among the remaining 27 patients, 96% were asymptomatic, the peak instantaneous aortic valve Doppler gradient was 50 ± 15 mm Hg with AR absent in 8%, mild in 62%, and moderate or more in 31%. In conclusion, repeat BD is effective and without mortality. AR was at least moderate in 24% of patients immediately after a second BD. Repeat BD was more common in patients who underwent the initial BD as neonates. Cathet. Cardiovasc. Intervent. 47:47–51, 1999. © 1999 Wiley-Liss, Inc.
Hypervariable region diversity of hepatitis C virus and humoral response: Comparison between patients with or without cirrhosis (1999)

To investigate the potential clinical utility of antibody response to HVR1 of HCV, the genomic and amino acid diversity of HVR1 was compared between two groups of four chronic HCV carriers with or without liver cirrhosis. Peptides corresponding to the deduced COOH- and NH2-terminal amino acid sequences of HVR1 were synthesised to assess the reactivity of patient sera to autologous and homologous HVR1 epitopes by enzyme-linked immunosorbent assay. HCV chronic carriers had significantly more frequent cross-reactivity with homologous C- than N-terminal HVR1 peptides. Twelve cirrhotic and eleven noncirrhotic patients had a similar frequency of cross-reactivity with either C- or N-terminal HVR1 peptides. However, noncirrhotic patients had a significantly higher level of C-terminal HVR1 antibody cross-reactivity than cirrhotic patients. In HCV chronic carriers, the magnitude of the immune response to but not the frequency of cross-reactivity with C-terminus HVR1 peptides differ between patients with and without liver cirrhosis.
Alirocumab as Add-On to Atorvastatin Versus Other Lipid Treatment Strategies: ODYSSEY OPTIONS I Randomized Trial (2015)

Adding alirocumab to atorvastatin provided significantly greater LDL-C reductions vs adding ezetimibe, doubling atorvastatin dose, or switching to rosuvastatin and enabled greater LDL-C goal achievement.
Performance of non-coherent decode-and-forward relaying over time-varying fading channels (2016)

Performance analysis of selection combining (SC) for decode-and-forward (DF) relaying in case of general time-varying Rayleigh fading channels is investigated. While auto-regressive (AR) time series model is applied in channels, differential binary phase shift keying (DBPSK) modulation and non-coherent detection at relay and destination are used together. Due to SC scheme, DF relaying and DBPSK modulation no channel side information (CSI) is required to provide average bit-error-rate (BER), which is exactly calculated. Simulation results in different channel scenarios and fading rates, verifies the presented analysis. It is shown that SC is very close to semi-maximum-ratio-combining (semi-MRC) which is difficult to analyze and error floors occur at high signal-to-noise ratio (SNR) in both methods. The error floor in SC is obtained.
Radical ring-opening polymerization of .alpha.-cyclopropylstyrenes. Polymerization behavior and mechanistic aspects of polymerization by the molecular orbital method (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRadical ring-opening polymerization of .alpha.-cyclopropylstyrenes. Polymerization behavior and mechanistic aspects of polymerization by the molecular orbital methodFumio Sanda, Toshikazu Takata, and Takeshi EndoCite this: Macromolecules 1993, 26, 21, 5748–5754Publication Date (Print):October 1, 1993Publication History Published online1 May 2002Published inissue 1 October 1993https://pubs.acs.org/doi/10.1021/ma00073a032https://doi.org/10.1021/ma00073a032research-articleACS PublicationsRequest reuse permissionsArticle Views123Altmetric-Citations16LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
[Clinical evaluation of the five-digit numerical recording system for classification of cleft lip and palate deformities]. (2013)

The LAPAL system is easily understood and grasped in a short time. Clefts on the border of adjoin degrees may cause confusion in diagnosis. More training or simplified modification is suggested.
Data on nitridation effect of AlTiTaZrHf(-N) high entropy films by X-ray photoelectron spectroscopy (2022)

The data presented in this article are related to the published research of "Effect of nitrogen content on structural and mechanical properties of AlTiZrTaHf(-N) high entropy films deposited by reactive magnetron sputtering". This database contains X-ray photoelectron spectroscopy (XPS) measurements, performed in order to determine the extents of nitrides formed in AlTiTaZrHf high entropy films. The latter were prepared by DC magnetron sputtering technique in reactive mode by adding the nitrogen to argon gas. The nitrogen flow rate is calculated by R<sub>N2</sub> = N<sub>2</sub>/(N<sub>2</sub>+Ar). XPS measurements were done one month later. Oxides were detected on the top surface of the samples. 2p, 3d and 4f core level peaks were fitted in order to determine accurately the chemical composition of the nitride films. Al2p, Ti2p, Zr3d, Ta4f, and Hf4f reveal the formation of nitrides of all elements constituting the films. Atomic percentage of each element was calculated revealing an increase of nitrogen loading and decrease of the metallic fractions of the elements as R<sub>N2</sub> grows from 5% to 50%. Nitridation behaviour of each element, as a function of the nitrogen flow rate, is investigated and presented.
Biology and the Problem of Natural Evil (2021)

The problem of evil has perennially been the strongest objection to religious faith among nonbelievers as well as a major source of crises of faith among believers. The problem centers on the alleged incompatibility between God and evil of all kinds in the world that he supposedly created and governs. On the face of it, this incompatibility seems to support agnosticism or atheism and thus creates difficulties for religion, particularly theistic religion. Since the mid-twentieth century, formulations of the problem – as well as responses to it – have become increasingly technical due to the rise of the analytic philosophy of religion. Moral evil was a salient point of debate, and still is, but theistic replies revolving around the concept of free will have come to be considered quite effective.
Constant-load energy recovery memory for efficient high-speed operation (2004)

This paper proposes a constant-load SRAM design for highly efficient recovery of bit-line energy with a resonant power-clock supply. For each bit-line pair, the proposed SRAM includes a dummy bit-line of sufficient capacitance to ensure that the memory array presents a constant capacitive load to the power-clock, regardless of data or operation. Using a single-phase power-clock waveform, read and write operations are performed with single-cycle latency. The efficiency of the proposed SRAM has been assessed through simulations of 128x256 arrays with 0.25µm process parameters and a 42/58 write/non-write access pattern. Assuming lossless power-clock generation, the proposed SRAM dissipates 37% less power than its conventional counterpart at 400MHz/2.5V. When the overhead of power-clock generation is included, the proposed SRAM dissipates at least 27% less power than conventional SRAM.
“SMART” Drug Delivery Systems:  Double-Targeted pH-Responsive Pharmaceutical Nanocarriers (2006)

To develop targeted pharmaceutical carriers additionally capable of responding to certain local stimuli, such as decreased pH values in tumors or infarcts, targeted long-circulating PEGylated liposomes and PEG-phosphatidylethanolamine (PEG-PE)-based micelles have been prepared with several functions. First, they are capable of targeting a specific cell or organ by attaching the monoclonal antimyosin antibody 2G4 to their surface via pNP-PEG-PE moieties. Second, these liposomes and micelles were additionally modified with biotin or TAT peptide (TATp) moieties attached to the surface of the nanocarrier by using biotin-PE or TATp-PE or TATp-short PEG-PE derivatives. PEG-PE used for liposome surface modification or for micelle preparation was made degradable by inserting the pH-sensitive hydrazone bond between PEG and PE (PEG-Hz-PE). Under normal pH values, biotin and TATp functions on the surface of nanocarriers were "shielded" by long protecting PEG chains (pH-degradable PEG(2000)-PE or PEG(5000)-PE) or by even longer pNP-PEG-PE moieties used to attach antibodies to the nanocarrier (non-pH-degradable PEG(3400)-PE or PEG(5000)-PE). At pH 7.4-8.0, both liposomes and micelles demonstrated high specific binding with 2G4 antibody substrate, myosin, but very limited binding on an avidin column (biotin-containing nanocarriers) or internalization by NIH/3T3 or U-87 cells (TATp-containing nanocarriers). However, upon brief incubation (15-30 min) at lower pH values (pH 5.0-6.0), nanocarriers lost their protective PEG shell because of acidic hydrolysis of PEG-Hz-PE and acquired the ability to become strongly retained on an avidin column (biotin-containing nanocarriers) or effectively internalized by cells via TATp moieties (TATp-containing nanocarriers). We consider this result as the first step in the development of multifunctional stimuli-sensitive pharmaceutical nanocarriers.
ThT as an instrument for testing and investigation of amyloid and amyloid-like fibrils (2007)

Thioflavin T (ThT) is known to have a very low quantum yield in water solutions itself and in the presence of native and denatured proteins and their amorphous aggregates, but to form a highly fluorescent complex with amyloid and amyloid-like fibrils. A new view on ThT spectral characteristics and mechanism of interaction with amyloid fibrils was elaborated on the basis of experimental studies of solvent polarity and viscosity influence on ThT absorption, excitation and fluorescence spectra and results of quantum-chemical calculations. It was shown that presence of the methyl group at nitrogen atom in benzthiazole ring makes nonplanar conformation of ThT energetically profitable and decreases barrier of intramolecular rotation of benzthiazole and aminobenzole rings relative to each other. Due to this ThT represents a dynamic set of molecules with differently perturbed systems of &pi;-conjugated bonds. Possibility of torsional oscillations of ThT fragments relative to each other coupled with intramolecular charge transfer in the excited state permits to refer ThT to the class of molecular rotors. The significant, by three orders, increase of quantum yield of ThT when incorporated in amyloid and amyloid-like fibrils is caused by restriction of torsional oscillations of ThT fragments relative to each other.
Genotyping the Mu‐Opioid Receptor A118G Polymorphism Using the Real‐time Amplification Refractory Mutation System: Allele Frequency Distribution Among Brazilians (2013)

We developed a fast and reliable genotyping method to identify the allele frequency distribution of the OPRM1 A118G polymorphism among patients from Center-West Brazil. Our preliminary results suggest functional consequences of the polymorphism on smoking behavior among Brazilians.
Optical network architectures and technologies for datacenters (2017)

The paper highlights the challenges related to the increasing importance of datacenter services, leading to dramatically growing datacenter traffic. The advantages of using photonic technology in intra-datacenter networks are discussed and a cross-layer view for network architecture design is presented.
Investigation into the Role of N‐Acetylaspartate in Cerebral Osmoregulation (1995)

Marked abnormalities of the magnetic resonance intensity of N-acetylaspartate (NAA) have been reported in patients with various neurological disorders, but the neurochemical consequences of these alterations are difficult to assess because the function of NAA remains speculative. The purpose of this study was to examine whether NAA plays a role in protecting neurons against osmotic stress. Intracerebral microdialysis was used to expose a small region of the rat dorsolateral striatum to an increasingly hyposmotic environment and to measure resulting changes in NAA extracellular concentrations. NAA changes in the extracellular fluid (ECF) were compared with those of the amino acids, in particular, taurine, known to be involved in brain osmoregulation. Stepped increases in cellular hydration produced by hyposmotic perfusion media induced a marked increase in ECF NAA, reflecting a redistribution of NAA from intra-to extracellular space. Parallel experiments showed that, of all the extracellular amino acids measured, only taurine markedly increased with hyposmolar perfusion medium, indicating that the ECF NAA increase associated with hyposmotic stress was a specific response and not passive leakage out of the cells. As NAA is predominantly neuronal, it may contribute to the protection of neurons against swelling (i.e., regulatory volume decrease). In conditions with impaired blood-brain barrier and cytotoxic oedema, efflux of intracellular NAA subsequent to sustained cellular swelling might lead to a reduction in total brain NAA detectable by magnetic resonance spectroscopy. Alternatively, redistribution of NAA from intra-to extracellular space implies changes in its chemical environment that may alter its magnetic resonance visibility.
Social regulation of maternal traits in nest-founding bumble bee (Bombus terrestris) queens (2013)

During the nest-founding phase of the bumble bee colony cycle, queens undergo striking changes in maternal care behavior. Early in the founding phase, prior to the emergence of workers in the nest, queens are reproductive and also provision and feed their offspring. However, later in the founding phase, queens reduce their feeding of larvae and become specialized on reproduction. This transition is synchronized with the emergence of workers in the colony, who assume the task of feeding their siblings. Using a social manipulation experiment with the bumble bee Bombus terrestris, we tested the hypothesis that workers regulate the transition from feeding brood to specialization on reproduction in nest-founding bumble bee queens. Consistent with this hypothesis, we found that early-stage nest-founding queens with workers prematurely added to their nests reduce their brood-feeding behavior and increase egg laying, and likewise, late-stage nest-founding queens increase their brood-feeding behavior and decrease egg-laying when workers are removed from their nests. Further, brood-feeding and egg-laying behaviors were negatively correlated. We used Agilent microarrays designed from B. terrestris brain expressed sequenced tags (ESTs) to explore a second hypothesis, that workers alter brain gene expression in nest-founding queens. We found evidence that brain gene expression in nest-founding queens is altered by the presence of workers, with the effect being much stronger in late-stage founding queens. This study provides new insights into how the transition from feeding brood to specialization on reproduction in queen bumble bees is regulated during the nest initiation phase of the colony cycle.