gebhart/patrepeval huggingface dataset:
Construction of heterobimetallics bridged by (oxyalkyl)phosphines: syntheses of trans-Me2Ta(.mu.-CH2)(.mu.-OCMe2CH2Ph2P)2PtMe and [cyclic] (TMEDA)Ta(.mu.-CH2)(.mu.-Me)(.mu.-OCMe2CH2Ph2P)2Ni (1990)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConstruction of heterobimetallics bridged by (oxyalkyl)phosphines: syntheses of trans-Me2Ta(.mu.-CH2)(.mu.-OCMe2CH2Ph2P)2PtMe and [cyclic] (TMEDA)Ta(.mu.-CH2)(.mu.-Me)(.mu.-OCMe2CH2Ph2P)2NiSteven M. Baxter and Peter T. WolczanskiCite this: Organometallics 1990, 9, 9, 2498–2509Publication Date (Print):September 1, 1990Publication History Published online1 May 2002Published inissue 1 September 1990https://pubs.acs.org/doi/10.1021/om00159a019https://doi.org/10.1021/om00159a019research-articleACS PublicationsRequest reuse permissionsArticle Views241Altmetric-Citations23LEARN 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
Control of fermentation of lignocellulosic hydrolysates (1999)

In this work substrate feeding rate to a fermentation of lignocellulose hydrolysate for production of ethanol has been studied. During hydrolysis of lignocellulose inhibitors are formed that effect the microorganism (here Saccharomyces cerevisiae) that ferments the sugar to ethanol in a negative way. To make the hydrolysate fermentable the inhibitors are often removed by detoxification prior to fermentation, but an alternative to detoxification is to use fed-batch fermentation. The reason for this is that the yeast can convert the inhibitors to less toxic compounds, if high concentrations of the inhibitors are avoided. To get a successful fermentation the substrate feed rate should be controlled so that severe inhibition is avoided and the production of ethanol is maximal. In this work on-line measurement of carbon dioxide evolution rate (CER) was used to control the feed rate of hydrolysate in fed batch fermentation of wood hydrolysate. A control algorithm was created for the feed rate of the hydrolysate and the results showed that the in-situ detoxification worked for moderately inhibiting hydrolysates but not for more severely inhibiting hydrolysates.
Proposal and demonstration of link connectivity assessment based enhancements to routing in mobile ad-hoc networks (2003)

Wireless ad-hoc networking can be employed to build inter-vehicle communication based applications. The associated hostile driving environment and high mobility exposes the routing protocol to a more dynamically changing topology. In this work we investigate and demonstrate the application of link-connectivity assessment to efficient ad-hoc routing. A framework for enhancements is delineated and incorporated in the implementation of OLSR protocol. For performance assessment we deploy a topology consisting of vehicles bearing laptop computers equipped with IEEE 802.11b compliant equipment. Experiments are conducted in a typical environment and routing performance is evaluated based on the UDP packet throughput and round trip time. It is demonstrated that the link quality assessment based enhancements improve the performance of OLSR. The improved scheme will be referred to as SBRS-OLSR (signal strength assessment based routing enhancements) in this paper.
Automatic creation of 3D facial models (1993)

Model-based encoding of human facial features for narrowband visual communication is described. Based on an already prepared 3D human model, this coding method detects and understands a person's body motion and facial expressions. It expresses the essential information as compact codes and transmits it. At the receiving end, this code becomes the basis for modifying the 3D model of the person and thereby generating lifelike human images. The feature extraction used by the system to acquire data for regions or edges that express the eyes, nose, mouth, and outlines of the face and hair is discussed. The way in which the system creates a 3D model of the person by using the features extracted in the first part to modify a generic head model is also discussed. >
A Miniaturized 256-Channel Neural Recording Interface With Area-Efficient Hybrid Integration of Flexible Probes and CMOS Integrated Circuits (2021)

We report a miniaturized, minimally invasive high-density neural recording interface that occupies only a 1.53 mm<sup>2</sup> footprint for hybrid integration of a flexible probe and a 256-channel integrated circuit chip. To achieve such a compact form factor, we developed a custom flip-chip bonding technique using anisotropic conductive film and analog circuit-under-pad in a tiny pitch of 75 μm. To enhance signal-to-noise ratios, we applied a reference-replica topology that can provide the matched input impedance for signal and reference paths in low-noise aimpliers (LNAs). The analog front-end (AFE) consists of LNAs, buffers, programmable gain amplifiers, 10b ADCs, a reference generator, a digital controller, and serial-peripheral interfaces (SPIs). The AFE consumes 51.92 μW from 1.2 V and 1.8 V supplies in an area of 0.0161 mm<sup>2</sup> per channel, implemented in a 180 nm CMOS process. The AFE shows > 60 dB mid-band CMRR, 6.32 μV<sub>rms</sub> input-referred noise from 0.5 Hz to 10 kHz, and 48 MΩ input impedance at 1 kHz. The fabricated AFE chip was directly flip-chip bonded with a 256-channel flexible polyimide neural probe and assembled in a tiny head-stage PCB. Full functionalities of the fabricated 256-channel interface were validated in both in vitro and in vivo experiments, demonstrating the presented hybrid neural recording interface is suitable for various neuroscience studies in the quest of large scale, miniaturized recording systems.
Clinical Investigation of 45 Cases of the Parotid Carcinoma (2004)

Preoperative histological diagnosis of parotid carcinoma is more difficult than that of other head and neck carcinomas. Accurate tumor histological analysis is important in satisfactory management of cancer of the parotid gland. Therapy should be carried out according to each histological type because each has a different tumor activity level. We reviewed 45 cases of previously untreated carcinomas arising in the parotid gland that had been treated between 1989 and 2002 and investigated the accuracy of preoperative histological diagnosis and the initial surgery. Fine-needle aspiration biopsy (FNA) of the parotid gland tumors is an accepted, sensitive and specific technique in diagnosing tumors. FNA was performed for all patients with parotid carcinomas, and the FNA findings were compared with the final pathologic diagnosis of the surgical specimen. In 45 cases of parotid carcinomas, FNA correctly diagnoised 27 (13 histologically, and 14 as malignant only), but failed in 18. Because the accuracy of the FNA findings was poor, we performed open biopsy prior to surgery in 13 cases, and an accurate diagnosis of both histology and grading was obtained in 12 cases. The results of FNA findings in all cases and open biopsy in 13 cases showed correct disgnosis in 29 (22 histologically, and 7 were malignant only), but failed in 16. Seventeen of 22 patients accurately diagnosed histologically underwent an appropriate surgical procedure, while 3 of 16 patients diagnosed with benign tumors preoperatively underwent inappropriate procedures. About forty percent of the patients underwent an inappropriate procedure mainly because of the wrong preoperative histological diagnosis. An accurate diagnosis is necessary to schedule an appropriate surgery, which will improve the prognosis of parotid carcinoma.
Video2Cartoon: A System for Converting Broadcast Soccer Video into 3D Cartoon Animation (2007)

A system for converting broadcast soccer video into 3D cartoon animation is proposed. The system can provide viewers with a new experience that can not be acquired from the original soccer video, by taking advantage of computer vision and computer graphics techniques. Firstly, computer vision techniques are employed to estimate the 3D positions of players and the ball. Then, players, the ball and the playfield are modeled by computer graphics techniques. Finally, 3D cartoon animation is generated based on the extracted 3D information and the pre-constructed player motion database. The system allows users to watch the game at arbitrary viewpoint using a virtual camera. On the other hand, content service providers can distribute the generated cartoon animation on their Web portals or to mobile devices, for consumers to better enjoy the game.
Green Synthesis of De Novo Bioinspired Porous Iron-Tannate Microstructures with Amphoteric Surface Properties (2022)

Bioinspired porous microstructures of iron-tannate (Fe(III)-TA) coordination polymer framework were synthesized by catenating natural tannic acid with iron(II), using a scalable aqueous synthesis method in ambient conditions. The chemical composition, morphology, physiochemical properties, and colloidal stability of microstructures were elucidated. The surface area (SBET) and the desorption pore volume were measured to be 70.47 m2/g and 0. 44 cm3/g, respectively, and the porous structure was confirmed with an average pore dimension of ~27 nm. Microstructures were thermally stable up to 180 °C, with an initial weight loss of 13.7% at 180 °C. They exhibited high chemical stability with pH-responsive amphoteric properties in aqueous media at pH levels ranging from 2 to 12. Supporting their amphoteric sorption, microstructures exhibited rapid removal of Pb+2 from water, with 99% removal efficiency, yielding a maximum sorption capacity of 166.66 mg/g. Amphoteric microstructures of bioinspired metal–phenolate coordination polymers remain largely unexplored. Additionally, natural polyphenols have seldomly been used as polytopic linkers to construct both porous and pH-responsive amphoteric coordination polymer frameworks with a robust structure in both acidic and basic media. Thus, this de novo porous microstructure of Fe(III)-TA and its physiochemical surface properties have opened new avenues to design thermally and chemically stable, eco-friendly, low-cost amphoteric sorbents with multifunctionality for adsorption, ion exchange, separation, storage, and sensing of both anions and cations present in heterogeneous media.
ARMM: An Autonomic Resource Management Mechanism for Virtual Private Networks (2010)

In this paper, we are addressing the problem of autonomic resource management for Virtual Private Networks (VPNs). Resources management is one of the important problems facing most Internet Service Providers (ISPs). As a solution, the Autonomic Service Architecture (ASA) is proposed in the literature to automate the resources management. Although, this model is able to improve ISPs' performance by automatically adjusting the resources allocation of each customer, it still suffers from two main limitations. First, this model increases the ISPs' revenue in a non-optimal way. Second, this model has no mechanism to prevent customers' exaggeration that can lead to an inefficient resource utilization, and violate the contracted Service Level Agreements' (SLAs) terms. Customers might exaggerate by asking for more resources during and after the SLA negotiation session, especially in the case of multimedia streaming, where this can waste the available network resources. This is due to the fact that customers would like to guarantee their Quality of Services (QoS). To overcome the above limitations, we propose an Autonomic Resources Management Mechanism (ARMM) that increases the ISPs' revenue by allocating resources based on the auction mechanism, where resources are granted to the best bidders. Additionally, we propose a threat model based on Vickrey-Clarke-Groves (VCG) mechanism that is able to penalize exaggerated bidders according to the created inconvenience. Since in our framework, customers are assumed to be rational, they will avoid asking for more unneeded resources. Simulation results show that the ARMM model is able to efficiently utilize network resources, increase ISPs' profit, and customers' satisfaction rates.
Visualization of Single Heavy Atoms by Dark Field Electron Microscopy (1971)

Dark field electronmicrographs of atoms of palladium, iodine, platinum, osmium, and uranium in model compounds have been obtained. Statistical analyses and a series of blind tests demonstrate the validity of the results. Moreover, optical density measurements of the images indicate that the observed relative scattering cross-sections of these atoms agree well with the theoretical cross-sections calculated from a Thomas-Fermi-Dirac model of the atom.
Subcellular localization and mitotic interactome analyses identify SIRT4 as a centrosomally localized and microtubule associated protein (2020)

Abstract The stress-inducible and senescence-associated tumor suppressor SIRT4, a member of the family of mitochondrial sirtuins (SIRT3, SIRT4, and SIRT5), regulates bioenergetics and metabolism via NAD + -dependent enzymatic activities. Next to the known mitochondrial location, we found that a fraction of endogenous or ectopically expressed SIRT4, but not SIRT3, is located at the mitotic spindle apparatus in the cytosol. Confocal spinning disk microscopy revealed that SIRT4 localizes during the cell cycle dynamically at centrosomes with an intensity peak in G 2 and early mitosis. Moreover, SIRT4 binds to microtubules and interacts with structural (α,β-tubulin, γ-tubulin, TUBGCP2, TUBGCP3) and regulatory (HDAC6) microtubule components as detected by co-immunoprecipitation and mass spectrometric analyses of the mitotic SIRT4 interactome. Overexpression of SIRT4 resulted in a pronounced decrease of acetylated α-tubulin (K40) associated with altered microtubule dynamics in mitotic cells. SIRT4 or the N-terminally truncated variant SIRT4(ΔN28), which is unable to translocate into mitochondria, delayed mitotic progression and reduced cell proliferation. This study extends the functional roles of SIRT4 beyond mitochondrial metabolism, and suggests that SIRT4 acts as a novel centrosomal / microtubule-associated protein in the regulation of cell cycle progression. Thus, stress-induced SIRT4 may exert its role as tumor suppressor through mitochondrial as well as extramitochondrial functions, the latter associated with its localization at the mitotic spindle apparatus.
Screener Evaluation of Pseudo-Colored Single Energy X-ray Luggage Images (2006)

An interactive user friendly graphical user interface and a portable test were developed and used in a performance evaluation study involving a population of actual federal airport screeners. The paper describes a series of linear and non-linear pseudo-coloring maps designed and applied to single energy x-ray luggage scans, to assist airport screeners in identifying and detecting threat items, particularly hard to see low-density weapons in luggage. Considerations of the psychological and physiological processing involved in the human perception of color as well as the effects of using various color models and color transforms were explored. Statistical analysis of screeners’ evaluation results proved the advantages of using color over gray level data and also allowed the ranking of color maps and selection of the best performing coloring scheme. Rate improvements in weapon detection of up to 97% were achieved through the use of color.
Pore-scale Analysis of CO2-brine Displacement in Berea Sandstone and Its Implications to CO2 Injectivity (2023)

For storage in deep saline formations, where CO 2 is injected into the pore spaces of rocks previously occupied by saline groundwater (brine), relative permeability is a key input parameter for predictive models. CO 2 injectivity is considered to reach the maximum value at the CO 2 endpoint relative permeability when brine saturation becomes irreducible. The objective of this study is to investigate the effect of viscosity ratio, interfacial tension and wettability on relative permeability during CO 2 -brine drainage. A multiphase lattice Boltzmann model (LBM) is employed to numerically measure pore-scale dynamics in CO 2 -brine flow in the sample of Berea sandstone. CO 2 /brine with interfacial tension from 30 to 45 mN/m and viscosity ratio from 0.05 to 0.17 (the range of values expected for typical storage reservoirs conditions) are carried out to systematically assess the influence on the relative permeability curves. Although CO 2 storage in sandstone saline aquifers is predominantly water wet, there are contradictory results as to the magnitude of the contact angle and its variation with fluid conditions. Therefore, the range of wetting conditions is studied to gain a better insight into the effect of wettability on supercritical CO 2 displacement. In this study, it is observed that interfacial tension variations play a trivial impact while both of viscosity ratio and wettability are likely to have a significant effect on relative permeability curves under representative condition of storage reservoirs. We also perform a near-wellbore scale geomechanics analysis to investigate the impact of relative permeability on CO 2 injectivity. The result shows that water-wet condition facilitates the CO 2 injection when there is no fracture induced.
Pilot Scale Testing of Polymeric Membranes for CO2 Capture from Coal Fired Power Plants (2013)

This paper summarizes the results obtained in Nanoglowa EU project using polymeric polyvinylamine fixed site carrier membranes developed at NTNU Norway for CO2 removal from flue gas. The pilot scale testing using real flue gas was performed at Sines power plant of EDP in Portugal. The aim of the project was CO2 separation from flue gas of coal fired power plants using membrane technology and involved several aspects: membrane up-scaling, material durability and pilot testing in a power plant. Gas permeation experiments and material analyses confirmed that the membrane material and separation performances were not affected negatively by exposure to synthetic and real flue gas contaminants. A pilot scale module having installed a 1.5 m2 of NTNU membrane was tested continuously for 6,5 months. The membranes showed constant separation performances with a maximum content of 75% CO2 in permeate and a permeate flow of 525 l/day. The performances were kept constant despite several challenges related to power plant operation such as high levels of NOx (600 mg/Nm3) and 200 mg/Nm3 SO2, and frequent power plant outages.
Anti‐Inflammatory Glucocorticoids (2010)

Abstract Glucocorticoids are the first line medication used in the treatment of afflictions ranging from the moderate skin rash to severe acute inflammatory disorders. They exert their activity through binding to the glucocorticoid receptor, a ligand‐dependent transcription factor, and result in either activation or repression of a large set of glucocorticoid responsive genes. The glucocorticoid receptor ( GR ) is a cytoplasmic protein of complex structure that is associated with various heat shock proteins (e.g., hsp 90). The desired immunosuppressive effect is apparently due largely to the downregulation of a variety of proinflammatory factors, whereas adverse reactions such as corticoid‐induced diabetes and osteoporosis could be connected to the inappropriate activation of genes involved in the control of metabolic processes. The discovery of selective receptor modulators, which maintain beneficial therapeutic activity together with a diminished risk of side effects, focuses on ligands that lead to repression rather than activation of genes targeted by the glucocorticoid receptor. Current drug‐screening programs have yielded a number of molecules including steroidal as well as nonsteroidal compounds, which preferentially induce receptor‐mediated repression.
Possible Health Effects of a Wax Ester Rich Marine Oil (2020)

The consumption of seafood and the use of fish oil for the production of nutraceuticals and fish feed have increased over the past decades due the high content of long-chain polyunsaturated omega-3 fatty acids. This increase has put pressure on the sustainability of fisheries. One way to overcome the limited supply of fish oil is to harvest lower in the marine food web. <i>Calanus finmarchicus,</i> feeding on phytoplankton, is a small copepod constituting a considerable biomass in the North Atlantic and is a novel source of omega-3 fatty acids. The oil is, however, different from other commercial marine oils in terms of chemistry and, possibly, bioactivity since it contains wax esters. Wax esters are fatty acids that are esterified with alcohols. In addition to the long-chain polyunsaturated omega-3 fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), the oil is also rich in stearidonic acid (SDA), long-chain monounsaturated fatty acids, and the long-chain fatty alcohols eicosenol and docosenol. Recent animal studies have indicated anti-inflammatory and anti-obesogenic actions of this copepod oil beyond that provided by EPA and DHA. This review will discuss potential mechanisms behind these beneficial effects of the oil, focusing on the impact of the various components of the oil. The health effects of EPA and DHA are well recognized, whereas long-chain monounsaturated fatty acids and long-chain fatty alcohols have to a large degree been overlooked in relation to human health. Recently, however the fatty alcohols have received interest as potential targets for improved health <i>via</i> conversion to their corresponding fatty acids. Together, the different lipid components of the oil from <i>C. finmarchicus</i> may have potential as nutraceuticals for reducing obesity and obesity-related metabolic disorders.
Amino Acid Flow through Aphid and Its Symbiont : Studies with ^N-Labeled Glutamine (1993)

(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.