gebhart/patrepeval huggingface dataset:
Single Morphing Attack Detection using Feature Selection and Visualisation based on Mutual Information (2021)

Face morphing attack detection is a challenging task. Automatic classification methods and manual inspection are realised in automatic border control gates to detect morphing attacks. Understanding how a machine learning system can detect morphed faces and the most relevant facial areas is crucial. Those relevant areas contain texture signals that allow us to separate the bona fide and the morph images. Also, it helps in the manual examination to detect a passport generated with morphed images. This paper explores features extracted from intensity, shape, texture, and proposes a feature selection stage based on the Mutual Information filter to select the most relevant and less redundant features. This selection allows us to reduce the workload and know the exact localisation of such areas to understand the morphing impact and create a robust classifier. The best results were obtained for the method based on Conditional Mutual Information and Shape features using only 500 features for FERET images and 800 features for FRGCv2 images from 1,048 features available. The eyes and nose are identified as the most critical areas to be analysed.
Size scalable integration of photonic neural networks (Conference Presentation) (2020)

Photonic systems are candidates for next generation neural networks, promising to boost energy efficiency and speed via optical vector matrix multiplication. We will introduce the first scalable neural network integration strategy, demonstrating a network for 999 neurons in 0.36 mm^2.
Controlled Synthesis of 2-D and 3-D Dendritic Platinum Nanostructures (2003)

Seeding and autocatalytic reduction of platinum salts in aqueous surfactant solution using ascorbic acid as the reductant leads to remarkable dendritic metal nanostructures. In micellar surfactant solutions, spherical dendritic metal nanostructures are obtained, and the smallest of these nanodendrites resemble assemblies of joined nanoparticles and the nanodendrites are single crystals. With liposomes as the template, dendritic platinum sheets in the form of thin circular disks or solid foamlike nanomaterials can be made. Synthetic control over the morphology of these nanodendrites, nanosheets, and nanostructured foams is realized by using a tin-porphyrin photocatalyst to conveniently and effectively produce a large initial population of catalytic growth centers. The concentration of seed particles determines the ultimate average size and uniformity of these novel two- and three-dimensional platinum nanostructures.
Current debate on the use of antibiotic prophylaxis for caesarean section (2010)

Caesarean delivery is frequently complicated by surgical site infections, endometritis and urinary tract infection. Most surgical site infections occur after discharge from the hospital, and are increasingly being used as performance indicators. Worldwide, the rate of caesarean delivery is increasing. Evidence-based guidelines recommended the use of prophylactic antibiotics before surgical incision. An exception is made for caesarean delivery, where narrow-range antibiotics are administered after umbilical cord clamping because of putative neonatal benefit. However, recent evidence supports the use of pre-incision, broad-spectrum antibiotics, which result in a lower rate of maternal morbidity with no disadvantage to the neonate.
Study on bubble formation at a submerged micro‐hole by a two‐stage model (2005)

Abstract In order to increase the accuracy of detached bubble volume prediction and to correct the theoretical weakness in models proposed previously, a modified two‐stage spherical bubble formation model is proposed in this study. This modified model takes account of an important factor, the length‐to‐diameter ratio of the micro‐hole by calculating the orifice constant with an entrance flow effect and expands the applicability of the modified model. Also, experimental tests were conducted to form bubbles at a submerged micro‐hole with diameters ranging from 60 to 1200 μm under variable pressure conditions due to continuous liquid drainage with drain rate ranging from 0.006 to 0.100 ml/s. The improved model indeed increases the ability to predict the detached bubble volume in the present study. Moreover, the results show that the condition for bubble formation in the present study could be shifted from a constant flow condition to a constant pressure condition depending on the orifice constant.
Identification and manipulation of dynamic active site deficiency-induced competing reactions in electrocatalytic oxidation processes (2022)

A detrimental competition between the urea oxidation reaction (UOR) and oxygen evolution reaction is identified. Strategies are proposed to alleviate such competition and boost the performance of the UOR and other organic compound oxidation reactions.
The dielectric behaviour of living cell suspensions (1999)

In the limit of small concentrations and weak applied electric fields, the dielectric permittivity of suspensions of arbitrarily shaped, shelled and charged particles is calculated. It is proved that the dielectric behavior at low frequencies is dominated by the effects of the diffusion of the free charges on the shell surfaces. Our theoretical formula is valid in the low range of frequencies (alpha dispersion) as well as in the high range of frequencies (beta dispersion). Will result that one can measure the membrane electrical potential by a simple investigation of the living cell suspension dielectric properties.
Novel Respiratory Syncytial Virus-Like Particle Vaccine Composed of the Postfusion and Prefusion Conformations of the F Glycoprotein (2016)

Respiratory syncytial virus (RSV) is the leading cause of severe respiratory disease in infants and children and represents an important global health burden for the elderly and the immunocompromised. Despite decades of research efforts, no licensed vaccine for RSV is available. We have developed virus-like particle (VLP)-based RSV vaccines assembled with the human metapneumovirus (hMPV) matrix protein (M) as the structural scaffold and the RSV fusion glycoprotein (F) in either the postfusion or prefusion conformation as its prime surface immunogen. Vaccines were composed of postfusion F, prefusion F, or a combination of the two conformations and formulated with a squalene-based oil emulsion as adjuvant. Immunization with these VLP vaccines afforded full protection against RSV infection and prevented detectable viral replication in the mouse lung after challenge. Analyses of lung cytokines and chemokines showed that VLP vaccination mostly induced the production of gamma interferon (IFN-γ), a marker of the Th1-mediated immune response, which is predominantly required for viral protection. Conversely, immunization with a formalin-inactivated RSV (FI-RSV) vaccine induced high levels of inflammatory chemokines and cytokines of the Th2- and Th17-mediated types of immune responses, as well as severe lung inflammation and histopathology. The VLP vaccines showed restricted production of these immune mediators and did not induce severe bronchiolitis or perivascular infiltration as seen with the FI-RSV vaccine. Remarkably, analysis of the serum from immunized mice showed that the VLP vaccine formulated using a combination of postfusion and prefusion F elicited the highest level of neutralizing antibody and enhanced the Th1-mediated immune response.
Pathogenesis and infection dynamics of high pathogenicity avian influenza virus (HPAIV) H5N6 (clade 2.3.4.4b) in pheasants and onward transmission to chickens (2022)

High pathogenicity avian influenza viruses clade 2.3.4.4 H5 have spread among wild birds worldwide during recent years causing annual die-offs among wild birds and outbreaks in poultry in multiple European countries. The outbreaks significantly impact the poultry and game bird sectors. Infected game birds may act as a bridging species potentially enabling spread of virus into commercial and backyard premises. In this study, the pathogenesis and transmission of a HPAIV clade 2.3.4.4b H5N6 virus was investigated in pheasants and chickens. Efficient virus transmission was detected between pheasants over multiple rounds of naïve pheasant introductions and onwards to chickens. Mortality of up to 100% was observed for both infected pheasants and chickens. Intra-species transmission from chicken to chicken was less efficient. The study confirmed that clade 2.3.4.4b H5N6 HPAIV is highly virulent in pheasants and emphasises the role of pheasants as a bridging host for the infection of commercial poultry.
Effect of fluvastatin sodium on the smooth muscle cells in atherosclerotic plaques. In vivo study using low-density lipoprotein receptor deficient Watanabe heritable hyperlipidemic (WHHL) rabbits. (1998)

The effects of fluvastatin sodium (CAS 93957-55-2, XU 62-320), an inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A reductase, on the smooth muscle cells in the atherosclerotic plaques of Watanabe heritable hyperlipidemic (WHHL) rabbits, a low density lipoprotein (LDL) receptor deficient animal model, were examined. Fluvastatin was administered to WHHL rabbits for 32 weeks at a dose of 50 mg/kg of body weight. The control WHHL rabbits were administered distilled water as placebo. Compared to the control group, the total cholesterol levels in the sera, very low density lipoprotein, intermediate density lipoprotein, and LDL decreased by 34%, 72%, 63%, and 25%, respectively. Although the surface lesion area of the aorta in the treated group was not different from that in the control group, intimal thickening in the treated group was significantly lower than that in the control group. Of the lesional components of atherosclerosis, the relative area of smooth muscle cells, collagen fibers, and extracellular lipid deposits in the treated group decreased significantly. It is concluded that fluvastatin decreased in the smooth muscle cell content of the atherosclerotic plaques and delayed progression of the aortic atherosclerosis in addition to the potent hyperlipidemic effect.
Usage of VSAT for TCP/IP based LAN interconnection (2002)

An analysis of the possibilities of usage of VSAT networks for the interconnection of TCP/IP based LANs is performed. In the first part of the paper, a general feasibility overview of TCP/IP through satellite is presented, stressing on the inconveniences and technical problems of arrangement. In the second part, a comparative study between low rate (up to 19.2 kbps) VSAT networks and other low capacity data networks (such as X.25) is carried out. The study is based upon measurements performed by Telefonica I+D on the Hughes ISBN VSAT system operated by Telefonica de Espana.
Time 0 growth reading using a plate reader v1 (2015)

For use in "One-step growth curve for Cyanophage"
Fluorescent microparticles fabricated through chemical coating of O/W emulsion droplets with a thin metallic film (2014)

We have developed a simple fabrication process for fluorescent silver-coated liquid particles. The synthesis involves the encapsulation of quasi-monodisperse micronic soybean oil-in-water emulsion droplets in a polydopamine shell followed by an electroless silver plating of the surface. Due to the presence of the thin silver layer, the droplets exhibit a broad range fluorescence that shows no photobleaching upon illumination. The method shows that multimodal colloidal microparticles can be produced via a high-yield method from sustainable, off-the-shelf products with mild synthesis routes in aqueous conditions.
Robust symmetrical number system direction finding arrays with virtual spacing (2008)

This research demonstrated how RSNS mapping is used to obtain unambiguous AOA estimates directly from phase measurements from the array elements. It is also possible to use the measured phases from elements with fixed spacing to simulate a nonphysical dasiavirtualpsila array with different element spacing. In order to apply the RSNS algorithm there are restrictions on the selected virtual array moduli. The virtual interferometers can be used to increase the resolution of a DF system over a limited spatial sector. Monte Carlo simulations have included thermal noise, channel errors, frequency errors and spacing errors [Kwai, 2007 and Pace, 2001]. The virtual array processing generally requires a higher SNR due to the higher resolution. The logical implementation of the RSNS is to use a coarse resolution for low SNR and switch to higher resolutions as the SNR increases [Chen, 2004].
Dattabase Information from Structure-based design of an urokinase-type plasminogen activator receptor–derived peptide inhibiting cell migration and lung metastasis (2023)

Dattabase Information from Structure-based design of an urokinase-type plasminogen activator receptor–derived peptide inhibiting cell migration and lung metastasis
Morphology of homogeneous copolymers of ethylene and 1‐octene. II. Structural changes on annealing (1998)

Based on DSC evidence, annealing of ethylene-1-octene copolymers results in a gradually increasing thermal stability of the original, metastable, crystals. SAXS and WAXD were used to monitor the structural changes involved after isothermal annealing for a fixed time at step-wise higher temperatures. A series of samples that differ in molar mass and comonomer content, ranging from 0 to 11.8 mol % 1-octene, were cooled at two extreme rates from 150°C, i.e., a quenching into liquid nitrogen and a controlled cooling at 0.1°C per minute to room temperature. The crystallinities of the quenched linear polyethylenes (LPEs), being included in this study as reference materials, and of the quenched copolymer with a 1-octene content of 2.1 mol % are always found to be lower than the crystallinities of the slowly cooled samples. On the other hand, higher crystallinities can be found for the quenched copolymers with a higher comonomer content compared to the slowly cooled specimens. A sequence of cocrystallization and recrystallization events is proposed to explain this contraintuitive, but reproducible experimental fact. This reasoning can also account for the steeper increase of the amorphous layer thickness of the latter slowly cooled copolymers compared to the quenched samples. All copolymers show a very moderate increase of the lamellar thickness after each heating step. Besides additional crystallization and recrystallization, lateral growth of the crystals and an increase of the crystallite density can account for the gradual increase of the thermal stability of copolymer crystals during prolonged annealing. The morphological effects observed for the LPEs confirm earlier findings. © 1999 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 37: 83–100, 1999
Isoform-Specific Ras Functions in Development and Cancer (2009)

The three closely related mammalian ras genes, Hras, Nras and Kras, have each been implicated in human tumorigenesis by virtue of mutational activation. However, while these genes encode proteins with very similar biochemical properties, activating ras alleles corresponding to the various isoforms have been linked to particular malignancies. Accumulating evidence suggests that these proteins exert distinct activities in a tissue-specific context, apparently reflecting developmental lineage-specific roles for the various ras isoforms. Some of these distinct functions appear to reflect differences in their C-termini, which determine distinct subcellular localization, thereby suggesting a role for compartmentalized signaling. In this review, we discuss the biological functions of the ras isoforms in the context of tissue-specific function as it relates to ras function in development and human cancer.
Width of the 1332-cm−1 Raman Line in Diamond (1969)

The width of the 1332-cm−1 Raman line in diamond has been measured using 6328-Å He-Ne laser excitation and a double grating monochromator for analyzing the scattered light. The Raman and system line profiles were determined for various settings of the spectrograph entrance and intermediate slits. The Raman linewidth was determined for each setting using the method employed by Park [Phys. Lett. 22, 39 (1966)]. The average of the various determination is Δν=1.88±0.12 cm−1 FWHM.
A cDNA clone closely associated with non-A, non-B hepatitits (1990)

A lambda gt11 cDNA library was constructed from RNA purified from hepatitis B viral surface antigen-negative human plasma with high alanine aminotransferase activity. A cDNA clone, designated as C8-2, was isolated by immunoscreening with mixed sera from non-A, non-B hepatitis (NANBH) carrier and convalescent chimpanzees. The recombinant protein produced by C8-2 reacted specifically with sera of patients in the chronic phase of NANBH. The sequence of C8-2, 269 bp, did not hybridized with any human or chimpanzee genomic DNA, and had no homology with those of primates and viruses. The existence of this sequence in RNA of possibly infectious plasma was shown by RNA blot hybridization and by Southern blot analysis of products amplified by the polymerase chain reaction. These results strongly suggest that C8-2 is derived from the agent of this viral hepatitis.
Do complexes of composition MnLX2 (L = tertiary phosphine) really exist? Do they reversibly bind dioxygen? (1983)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDo complexes of composition MnLX2 (L = tertiary phosphine) really exist? Do they reversibly bind dioxygen?H. D. Burkett, V. F. Newberry, W. E. Hill, and S. D. WorleyCite this: J. Am. Chem. Soc. 1983, 105, 12, 4097–4099Publication Date (Print):June 1, 1983Publication History Published online1 May 2002Published inissue 1 June 1983https://pubs.acs.org/doi/10.1021/ja00350a062https://doi.org/10.1021/ja00350a062research-articleACS PublicationsRequest reuse permissionsArticle Views73Altmetric-Citations7LEARN 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
Überwachung von Rotorblättern von Windkraftanlagen (2009)

Kurzfassung In diesem Bericht wird die Entwicklung eines Structural-Health-Monitoring Systems, SHM, vorgestellt, das den Zustand der Rotorblätter von Windenergieanlagen überwachen und rechtzeitig vor Totalausfällen Strukturveränderungen detektieren und lokalisieren soll. Es basiert auf einer Kombination von Messtechniken aus den Bereichen der geführten Wellen im Ultraschallbereich und niederfrequenter Modalanalyse. Die Kombination beider Techniken ist bei bisherigen Rotorblattuntersuchungen bereits erfolgversprechend eingesetzt worden. Mittels Modalanlayse sind Aussagen zum Gesamtverhalten der Rotorblattstruktur möglich; gefährdete und stark beanspruchte Bereiche werden zusätzlich durch geführte Wellen im Ultraschallbereich überwacht.
Modeling Tabular data using Conditional GAN (2019)

Modeling the probability distribution of rows in tabular data and generating realistic synthetic data is a non-trivial task. Tabular data usually contains a mix of discrete and continuous columns. Continuous columns may have multiple modes whereas discrete columns are sometimes imbalanced making the modeling difficult. Existing statistical and deep neural network models fail to properly model this type of data. We design TGAN, which uses a conditional generative adversarial network to address these challenges. To aid in a fair and thorough comparison, we design a benchmark with 7 simulated and 8 real datasets and several Bayesian network baselines. TGAN outperforms Bayesian methods on most of the real datasets whereas other deep learning methods could not.
Impact of 2D and 3D Vision on Performance of Novice Subjects Using da Vinci Robotic System (2006)

Our findings emphasized the advantage of 3D vision over 2D view in performing surgical task, encouraging the development of efficient and less expensive 3D systems in order to improve the accuracy of surgical gesture, the resident training and the operating time.
Fabrication of High Permittivity Resin Composite for Vat Photopolymerization 3D Printing: Morphology, Thermal, Dynamic Mechanical and Dielectric Properties (2019)

The formulation of a high dielectric permittivity ceramic/polymer composite feedstock for daylight vat photopolymerization 3D printing (3DP) is demonstrated, targeting 3DP of devices for microwave and THz applications. The precursor is composed of a commercial visible light photo-reactive polymer (VIS-curable photopolymer) and dispersed titanium dioxide (TiO<sub>2</sub>, TO) ceramic nano-powder or calcium copper titanate (CCT) micro-powder. To provide consistent 3DP processing from the formulated feedstocks, the carefully chosen dispersant performed the double function of adjusting the overall viscosity of the photopolymer and provided good matrix-to-filler bonding. Depending on the ceramic powder content, the optimal viscosities for reproducible 3DP with resolution better than 100 µm were η<sub>(TO)</sub> = 1.20 ± 0.02 Pa.s and η <sub>(CCT)</sub> = 0.72 ± 0.05 Pa.s for 20% w/v TO/resin and 20% w/v CCT/resin composites at 0.1 s<sup>-1</sup> respectively, thus showing a significant dependence of the "printability" on the dispersed particle sizes. The complex dielectric properties of the as-3D printed samples from pure commercial photopolymer and the bespoke ceramic/photopolymer mixes are investigated at 2.5 GHz, 5 GHz, and in the 12-18 GHz frequency range. The results show that the addition of 20% w/v of TO and CCT ceramic powder to the initial photopolymer increased the real part of the permittivity of the 3DP composites from ε' = 2.7 ± 0.02 to ε'<sub>(TO)</sub> = 3.88 ± 0.02 and ε'<sub>(CCT)</sub> = 3.5 ± 0.02 respectively. The present work can be used as a guideline for high-resolution 3DP of structures possessing high-ε.