gebhart/patrepeval huggingface dataset:
A Generative Shape Regularization Model for Robust Face Alignment (2008)

In this paper, we present a robust face alignment system that is capable of dealing with exaggerating expressions, large occlusions, and a wide variety of image noises. The robustness comes from our shape regularization model, which incorporates constrained nonlinear shape prior, geometric transformation, and likelihood of multiple candidate landmarks in a three-layered generative model. The inference algorithm iteratively examines the best candidate positions and updates face shape and pose. This model can effectively recover sufficient shape details from very noisy observations. We demonstrate the performance of this approach on two public domain databases and a large collection of real-world face photographs.
Nonconservative Optical Torques (2010)

We demonstrate that mutual electromagnetic interaction induces torques even in lossless spheres. This constitutes a new mechanism to gain energy from an external field, besides radiation pressure and absorption, and is fully controlled by polarization.
A reduced-reference perceptual quality metric for texture synthesis (2014)

This paper presents a reduced-reference quality metric that quantifies the perceptual quality of the synthesized textures. The metric is based on the change in perceived regularity between the original and the synthesized textures. The perceived regularity is quantified through a modified texture regularity metric based on visual attention. It is shown through subjective testing that the proposed metric has a strong correlation with the Mean Opinion Score for the fidelity of synthesized textures and outperforms the state-of-the-art full-reference quality metrics.
Guest Editorial (2010)

The 20 papers in this first part of this special section are classified by energy sources (wind, photovoltaic (PV), hydro, etc.), grid-related issues (islanding, synchronization, microgrid and smart grid), and converters for renewable-energy sources.
PSYCHOSOCIAL ASPECTS OF TERMINAL CARE (1973)

schoenberg, Bernard; Carr, Arthur C.; Peretz, David; Kutscher, Austin H.; CASTLES, MARY REARDON R.N., PH.D. Author Information
A Traceless Approach for the Solid-Phase Parallel Synthesis of Trisubstituted Oxindoles (2007)

ADVERTISEMENT RETURN TO ISSUEPREVReportNEXTA Traceless Approach for the Solid-Phase Parallel Synthesis of Trisubstituted OxindolesJinwen Xie, Jing Sun, Guolin Zhang, Richard A. Houghten, and Yongping YuView Author Information Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Zijin Campus, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China, and Torrey Pines Institute for Molecular Studies, 3550 General Atomics Court, San Diego, California 92121 Cite this: J. Comb. Chem. 2007, 9, 4, 566–568Publication Date (Web):May 12, 2007Publication History Received13 January 2007Published online12 May 2007Published inissue 1 July 2007https://pubs.acs.org/doi/10.1021/cc070010xhttps://doi.org/10.1021/cc070010xbrief-reportACS PublicationsCopyright © 2007 American Chemical SocietyRequest reuse permissionsArticle Views1100Altmetric-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 optionsSupporting Info (2)»Supporting Information Supporting Information SUBJECTS:Alcohols,Chemical synthesis,Organic polymers,Oxindoles,Solid phase synthesis Get e-Alerts
An overview of deep learning based methods for unsupervised and\n semi-supervised anomaly detection in videos (2018)

Videos represent the primary source of information for surveillance\napplications and are available in large amounts but in most cases contain\nlittle or no annotation for supervised learning. This article reviews the\nstate-of-the-art deep learning based methods for video anomaly detection and\ncategorizes them based on the type of model and criteria of detection. We also\nperform simple studies to understand the different approaches and provide the\ncriteria of evaluation for spatio-temporal anomaly detection.\n
Iron conservation by reduction of metalloenzyme inventories in the marine diazotroph Crocosphaera watsonii (2011)

The marine nitrogen fixing microorganisms (diazotrophs) are a major source of nitrogen to open ocean ecosystems and are predicted to be limited by iron in most marine environments. Here we use global and targeted proteomic analyses on a key unicellular marine diazotroph Crocosphaera watsonii to reveal large scale diel changes in its proteome, including substantial variations in concentrations of iron metalloproteins involved in nitrogen fixation and photosynthesis, as well as nocturnal flavodoxin production. The daily synthesis and degradation of enzymes in coordination with their utilization results in a lowered cellular metalloenzyme inventory that requires ∼40% less iron than if these enzymes were maintained throughout the diel cycle. This strategy is energetically expensive, but appears to serve as an important adaptation for confronting the iron scarcity of the open oceans. A global numerical model of ocean circulation, biogeochemistry and ecosystems suggests that Crocosphaera's ability to reduce its iron-metalloenzyme inventory provides two advantages: It allows Crocosphaera to inhabit regions lower in iron and allows the same iron supply to support higher Crocosphaera biomass and nitrogen fixation than if they did not have this reduced iron requirement.
Heterogeneous Sodium‐Manganese Oxide Catalyzed Aerobic Oxidative Cleavage of 1,2‐Diols (2017)

The aerobic oxidative cleavage of 1,2-diols using a heterogeneous catalyst only based on earth-abundant metals manganese and sodium is reported for the first time. This reusable catalyst cleaves a variety of substrates into aldehydes or ketones with high selectivity. The reaction requires small catalytic loadings and is performed under mild conditions using ambient pressure O<sub>2</sub> or air as the oxidant while producing water as the only by-product. Mechanistic investigations reveal a monodentate, two-electron oxidative fragmentation process involving a Mn<sup>IV</sup> species. The eco-friendly, innocuous catalyst is compatible with a wide range of functional groups and conditions, making it highly competitive with classical reagents, such as periodic acid or lead tetraacetate, as a preferred method for activated 1,2-diols.
Anti-biofilm activity of pseudoalteromonas haloplanktis tac125 against staphylococcus epidermidis biofilm: Evidence of a signal molecule involvement? (2015)

Staphylococcus epidermidis is recognized as cause of biofilm-associated infections and interest in the development of new approaches for S. epidermidis biofilm treatment has increased. In a previous paper we reported that the supernatant of Antarctic bacterium Pseudoalteromonas haloplanktis TAC125 presents an anti-biofilm activity against S. epidermidis and preliminary physico-chemical characterization of the supernatant suggested that this activity is due to a polysaccharide. In this work we further investigated the chemical nature of the anti-biofilm P. haloplanktis TAC125 molecule. The production of the molecule was evaluated in different conditions, and reported data demonstrated that it is produced in all P. haloplanktis TAC125 biofilm growth stages, also in minimal medium and at different temperatures. By using a surface coating assay, the surfactant nature of the anti-biofilm compound was excluded. Moreover, a purification procedure was set up and the analysis of an enriched fraction demonstrated that the anti-biofilm activity is not due to a polysaccharide molecule but that it is due to small hydrophobic molecules that likely work as signal. The enriched fraction was also used to evaluate the effect on S. epidermidis biofilm formation in dynamic condition by BioFlux system.
Two-Way Covert Quantum Communication in the Microwave Regime (2021)

Seminal results for the theory of low-frequency microwave quantum communication, as well as its practical implementation, are presented: Unconditional security for backscatter communication is found by hiding the carrier in the environment.
Molecular tools and analytical approaches for the characterization of farm animal genetic diversity (2012)

Genetic studies of livestock populations focus on questions of domestication, within- and among-breed diversity, breed history and adaptive variation. In this review, we describe the use of different molecular markers and methods for data analysis used to address these questions. There is a clear trend towards the use of single nucleotide polymorphisms and whole-genome sequence information, the application of Bayesian or Approximate Bayesian analysis and the use of adaptive next to neutral diversity to support decisions on conservation.
Listening In: Building a Profile of Podcast Users and Analyzing Their Political Participation (2012)

ABSTRACT Past research has shown that Internet use for news leads to increased political participation levels, both offline and online. Other forms of digital and user-generated media such as blogs have also yielded similar results. However, little is known about podcast users and their role within democratic societies. This article outlines findings from an online survey conducted in the United States that lend support to the notion that podcast use for news leads to political participation, even when controlling for the effects of other media forms. This article also identifies demographic predictors for those who are likely to be podcast users.
Multimedia (2013)

This summary overviews a keynote talk that the author is giving at the WebMedia conference. Christel will discuss his journey with multimedia research over the past six years, taking him from Carnegie Mellon University's Computer Science Department into the Entertainment Technology Center (ETC). The story begins with the use of speech recognition, image processing, and language technologies to automatically process large video corpora. Such processing facilitates more efficient retrieval. As demonstrated by top scores in the international TRECVID benchmarking forum, Christel's CMU Informedia research group has experienced success in finding relevant video shots quickly from large masses of material. The emphasis is on leveraging the intelligence of a human user in the interactive retrieval loop, with lessons shared in visual analytics papers. That work drew the attention of oral historians, who amassed large quantities of video stories that were not easily accessible. The value of synchronized metadata to open up these collections for the web audience illustrates the power of multimedia processing to help organize and present cultural repositories. As the user community appreciated the layers of meaning within these often riveting stories, Christel was drawn to the power of multimedia elements in entertainment technologies, including games. Transformational games are designed to change the player in some way, such as improving health habits, changing attitudes, or providing education. The ETC provides multidisciplinary teams of graduate students with skills in visual arts, design, sound, programming, and production the opportunity to create such games in the course of a semester-long project. Christel will briefly overview this development process, and then demonstrate some of the ETC-produced games, highlighting the role of multimedia elements within them and the promise of the work to positively affect the game player.
Does Aspirin Attenuate the Beneficial Effects of Angiotensin-Converting Enzyme Inhibition in Heart Failure? (2000)

Ischemic heart disease is the most common underlying cause of congestive heart failure, and thus aspirin (acetylsalicylic acid [ASA]) and angiotensin-converting enzyme (ACE) inhibitors are commonly used together for treatment in this setting. The issue of possible attenuation of the effect of ACE inhibitors by ASA has been an area of intense debate. Currently, it is perceived that a significant part of the beneficial effect of ACE inhibitors is related to augmentation of bradykinin levels, which among other effects stimulate the release of prostacyclin. Aspirin, on the other hand, inhibits the production of prostacyclin by blocking cyclooxygenase. Prostaglandins play an important endogenous vasodilatory role and counteract the enhanced peripheral vasoconstriction state in congestive heart failure. Thus, the counteracting effect of ASA on the augmentation of prostacyclin synthesis by ACE inhibitors could result in a potential reduction of the beneficial effects of the ACE inhibitor's and could be of great importance. This article reviews reports from large clinical trials pertaining to this issue and relates their findings to the currently available theoretical bases for support of the counteracting effect of ASA on augmentation of prostacyclin synthesis by ACE inhibitors. The clinical implications of such an interaction are discussed.
Investigation of the Evolution of Wavelet Higher-Order Dynamics in Atrial Fibrillation (2022)

Atrial fibrillation (AF) is the most common cardiac arrhythmia and is associated with significant morbidity and mortality. Owing to the advances in sensor technology and the emergence of wearable devices that enable daily self-monitoring, ECG signal processing methods for the automatic detection of AF are more pertinent than ever. In this paper, we investigate the use of wavelet higher-order statistics (WHOS) for feature extraction and differentiation between normal sinus rhythm and AF. The proposed approach captures the evolution of the WHOS dynamics and quantifies the changes in the time-varying characteristics of the frequency couplings caused by AF. Results obtained from the statistical analysis of a dataset of 5834 single-lead ECG recordings, reveal 46/50 statistically significant features and provide insight into the complexity of the evolution of the ECG non-linearities during AF.
Differences in gaze anticipation for locomotion with and without vision (2015)

Previous experimental studies have shown a spontaneous anticipation of locomotor trajectory by the head and gaze direction during human locomotion. This anticipatory behavior could serve several functions: an optimal selection of visual information, for instance through landmarks and optic flow, as well as trajectory planning and motor control. This would imply that anticipation remains in darkness but with different characteristics. We asked 10 participants to walk along two predefined complex trajectories (limaçon and figure eight) without any cue on the trajectory to follow. Two visual conditions were used: (i) in light and (ii) in complete darkness with eyes open. The whole body kinematics were recorded by motion capture, along with the participant's right eye movements. We showed that in darkness and in light, horizontal gaze anticipates the orientation of the head which itself anticipates the trajectory direction. However, the horizontal angular anticipation decreases by a half in darkness for both gaze and head. In both visual conditions we observed an eye nystagmus with similar properties (frequency and amplitude). The main difference comes from the fact that in light, there is a shift of the orientations of the eye nystagmus and the head in the direction of the trajectory. These results suggest that a fundamental function of gaze is to represent self motion, stabilize the perception of space during locomotion, and to simulate the future trajectory, regardless of the vision condition.
What Image Properties Regulate Eye Growth (2006)

* This article is free to read on journal website.

The growth of the eye, unlike other parts of the body, is not ballistic. It is guided by visual feedback with the eventual aim being optimal focus of the retinal image or emmetropization. It has been shown in animal models that interference with the quality of the retinal image leads to a disruption to the normal growth pattern, resulting in the development of refractive errors and defocused retinal images. While it is clear that retinal images rich in pattern information are needed to control eye growth, it is unclear what particular aspect of image structure is relevant. Retinal images comprise a range of spatial frequencies at different absolute and relative contrasts and in different degrees of spatial alignment. Here we show, by using synthetic images, that it is not the local edge structure produced by relative spatial frequency alignments within an image but rather the spatial frequency composition per se that is used to regulate the growth of the eye. Furthermore, it is the absolute energy at high spatial frequencies regardless of the spectral slope that is most effective. Neither result would be expected from currently accepted ideas of how human observers judge the degree of image blur in a scene where both phase alignment and the relative energy distribution across spatial frequency (i.e., spectral slope) are important.
Sulfur Composite Cathode Materials for Rechargeable Lithium Batteries (2003)

Abstract Conductive polymer/sulfur composite materials were prepared by heating the mixture of polyacrylonitrile (PAN) and sublimed sulfur. During the heating process, PAN was dehydrogenated by sulfur, forming a conductive main chain similar to polyacetylene. At the same time, the high‐polarity functional group –CN cyclized at the melt state, forming a thermally stable heterocyclic compound in which sulfur was embedded. The nanodispersed composites showed excellent electrochemical properties. Tested as cathode material in a non‐aqueous lithium cell based on poly(vinylidene fluoride) (PVDF) gel electrolyte at room temperature, the composite exhibited a specific capacity up to 850 mA h g –1 in the initial cycle. Its specific capacity remained above 600 mA h g –1 after 50 cycles, about five times that of LiCoO 2 , and recovered partly after replacement of the anode with a fresh lithium sheet. The utilization of the electrochemically active sulfur was about 90 % assuming a complete reaction to the product, Li 2 S.
Modelos para el cálculo de consumo y emisiones gaseosas de la flota de autobuses de Madrid (2010)

En este trabajo se presentan algunos resultados del estudio experimental de cálculo de emisiones emanadas en condiciones concretas de la explotación del servicio de la flota de vehículos del transporte público de pasajeros de la ciudad de Madrid, realizado en el marco de cooperación entre grupos de investigación del Instituto Universitario de Investigación del Automóvil (INSIA) de la Universidad Politécnica de Madrid y del Instituto de Desarrollo Industrial (IIDISA) de la Universidad Nacional de Salta. La experiencia consistió en la adquisición de datos de emisiones de contaminantes y consumo de combustible mediante un equipo de medida de emisiones a bordo en un vehículo de prueba en condiciones reales de explotación, en los que se tomaron además, datos de variables cinemáticas en distintas líneas y recorridos representativos de las que conforman el servicio de la Empresa Municipal de Transportes de Madrid. Con los datos adquiridos se han ajustado modelos para la estimación de emisiones contaminantes y consumo en un escenario de 30 ciclos, con el objetivo de obtener valores por unidad (30 ciclos) que pueden ser utilizados como valores de referencia. Por razones de extensión, en este estudio se presentan los resultados del modelo estadístico para el cálculo del consumo y las emisiones totales de CO2 ajustado en función de variables cinemáticas como la velocidad media del autobús y el tiempo, en una de las líneas de servicio más largas de la ciudad: la línea Circular Uno (C1). Las expresiones obtenidas permiten estimar el consumo de combustibles y emisiones de CO2 con valores del coeficiente de correlación superior al 70%. A su vez, es posible realizar un análisis de la gestión de la flota de transporte inspirada en la comparación de los ciclos de operación de las líneas y la evaluación de los impactos producidos por la sustitución de vehículos y combustibles
The GenusBacteroides (2008)

Abstract The genus Bacteroides has been described over 100 years and comprises a group of small nonmotile, nonsporing, Gram‐negative rods; they are obligate anaerobes and form a major part of the bacterial flora of the human intestinal tract. Poor circumscription of this group has led to the genus accumulating a large and diverse collection of species that only superficially resembles this description but could not be accommodated elsewhere. Based largely on chemotaxonomic and genetic criteria the genus was reclassified (Shah and Collins, 1989) to encompass the type species Bacteroides fragilis and members of the ‘ B. fragilis group’. This more restricted definition, spurred on mainly by 16S rRNA (ribosomal ribonucleic acid ), has encouraged more in‐depth analysis of the colonic flora and a large number of new species have been described. Full genomes of four species have been completed. Such studies are providing a better basis for elucidating the biological role of specific species within the intestinal tract and their involvement in a variety of physiological and cellular processes.
Measurement of knee flexion/extension angle using wearable UWB radios (2013)

This paper proposes a wearable system using UWB transceivers to measure the knee flexion/extension angle parameter, who is known to be of clinical importance. First, a pair of very small and light antennas is placed on the adjacent segments of knee joint. Then, the range data between these two antennas is acquired using Time of Arrival (TOA) estimator. We further use the measured distance to compute the flexion/extension angle using the law of cosines. The performance of the method was compared with a flexible goniometer by simultaneously measuring knee flexion-extension angle. The experimental results show that the system has reasonable performance and has sufficient accuracy for clinical applications.
In Vivo Antitumor Activity of the Folate-Conjugated pH-Sensitive Polymeric Micelle Selectively Releasing Adriamycin in the Intracellular Acidic Compartments (2007)

Cancer treatment efficacy and safety of the environmentally sensitive polymeric micelle drug carriers were significantly increased by optimizing the number of ligands on their surface. These micelles were designed to target the cancerous tumors through the interaction between folate and its receptors that overexpress on the cancer cell membrane while achieving pH-controlled drug release in the intracellular acidic compartments such as endosomes and lysosomes. In order to elucidate the effects of folate on cytotoxicity, biodistribution, anticancer activity, and pharmacological properties, folate concentration on the surface of the micelles was controlled by precise synthesis of two different amphiphilic block copolymers that self-assemble into spherical micelles, folate-poly(ethylene glycol)-poly(aspartate-hydrazone-adriamycin) with gamma-carboxylic acid activated folate and methoxy-poly(ethylene glycol)-poly(aspartate-hydrazone-adriamycin) without folate. It is of significance that, although folate conjugation induced an extremely small change in tumor accumulation of the micelles, folate-conjugated micelles showed lower in vivo toxicity and higher antitumor activity over a broad range of the dosage from 7.50 to 26.21 mg/kg, which was 5-fold broader than free drugs.