gebhart/patrepeval huggingface dataset:
Procedimiento para la preparación de titanosilicatos mesoporosos tipo MCM-48, y su uso como catalizadores en reacciones de oxidación selectiva (2002)

Referencia OEPM: P9900214.-- Fecha de solicitud: 29/01/1999.-- Titulares: Universidad Politécnica de Valencia (UPV), Consejo Superior de Investigaciones Científicas (CSIC).
Assessment of myocardial oxygenation changes in the presence of coronary artery stenosis with three dimensional cardiac phase-resolved SSFP BOLD imaging in canines (2009)

Introduction: Prophylactic implantation of a cardioverter/ defibrillator (ICD) has been shown to reduce mortality in patients with chronic myocardial infarction (CMI) and an increased risk for life threatening ventricular arrhythmia (VA). The use of ICDs in this large patient population is still limited by high costs and possible adverse events including inappropriate discharges and progression of heart failure. VA is related to infarct size and seems to be related to infarct morphology. Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification in this setting. Hypothesis: ceCMR can identify the subgroup developing VA in patients with prophylactic ICD implantation following MADIT criteria. Methods: We prospectively enrolled 52 patients (49 males, age 69 10 years) with CMI and clinical indication for ICD therapy following MADIT criteria. Prior to implantation (36 78 days) patients were investigated on a 1.5 T clinical scanner (Siemens Avanto , Germany) to assess left ventricular function (LVEF), LV end-diastolic volume (LVEDV) and LV mass (sequence parameters: GRE SSFP, matrix 256 192, short axis stack; full LV coverage, no gap; slice thickness 6 mm). For quantitative assessment of infarct morphology late gadolinium enhancement (LGE) was performed including measurement of total and relative infarct mass (related to LV mass) and the degree of transmurality (DT) as defined by the percentage of transmurality in each scar. (sequence parameters: inversion recovery gradient echo; matrix 256 148, imaging 10 min after 0.2 g/kg gadolinium DTPA; slice orientation equal to SSFP). MRI images were analysed using dedicated software (MASS , Medis, Netherlands). LGE was defined as myocardial areas with signal intensity above the average plus 5 SD of the remote myocardium. After implantation, patients were followed up including ICD readout after 3 and than every 6 months for a mean of 945 344 days. ICD data were evaluated by an experienced electrophysiologist. Primary endpoint was the occurrence of an appropriate discharge (DC), antitachycard pacing (ATP) or death from cardiac cause. Results: The endpoint occurred in 10 patients (3 DC, 6 ATP, 1 death). These patients had a higher relative infarct mass (28 7% vs. 22 11%, p = 0.03) as well as high degree of transmurality (64 22% vs. 44 25%, p = 0.05). Their LVEF (29 8% vs. 30 4%, p = 0.75), LV mass (148 29 g vs. 154 42 g, p = 0.60), LVEDV (270 133 ml vs. 275 83 ml, p = 0.90) or total infarct mass (43 19 g vs. 37 21 g, p = 0.43) were however not significant from the group with no events. In a cox proportional hazards regression model including LVEF, LVEDV, LV mass, DT and age, only degree of transmurality and relative infarct mass emerged as independent predictors of the primary end point (p = 0.009).
Compression Progressive Générique de Maillages Surfaciques (2014)

National audience
OFDMA-TDMA-Based Seismic Data Transmission Over TV White Space (2021)

Traditional cable-based geophone network is not an efficient way of seismic data transmission owing to the related cost and weight. To alleviate these drawbacks, in this work, unlike the existing setup, an OFDMA-TDMA based wireless geophone network is proposed to maximize the throughput for timely delivery of the seismic data from geophones to the data center. Furthermore, a TV white space is utilized for transmission in order to have long-distance links between the wireless geophones and the data center, and ultimately evading the use of intermediate relays. This, in turn, reduces the delivery time of the seismic data. More importantly, the seismic data transmission is modeled using a Markov chain and analytical expressions of throughput and transmission time are derived. Finally, our theoretical findings are substantially corroborated by simulation results.
Deracemization of Chiral-at-Ruthenium Catalyst by Diastereoselective Dynamic Resolution (2021)

In this work, we introduce an auxiliary-mediated deracemization protocol in the synthesis of a non-C2-symmetric chiral-at-ruthenium catalyst bearing two cyclometalated 7-methyl-1,7-phenanthrolinium heterocycles, a CO ligand, and an additional labile MeCN ligand. Upon coordination of a monodentate chiral oxazoline ligand as chiral auxiliary, the racemic complex mixture is transformed into a single diastereomer in quantitative yield via a diastereoselective dynamic resolution process. After removal of the oxazoline ligand under acidic conditions, enantiomerically pure complexes (>20:1 er) with a Δ- and Λ-configuration were obtained. An application of the chiral-at-ruthenium catalyst to an enantioselective ring-closing C(sp3)-H amidation of a 1,2,4-dioxazol-5-one to the corresponding chiral γ-lactam is demonstrated.
Unravelling fullerene–perovskite interactions introduces advanced blend films for performance-improved solar cells (2019)

Identification of perovskite–fullerene interactions explained the beneficial effects of fullerene derivatisation for perovskite:fullerene films. Understanding these systems led to structurally optimised fullerene for improved perovskite solar cells.
Establishment of Antihuman IFN-α8-Specific Monoclonal Antibodies and Their Application in the Enzyme-Linked Immunosorbent Assay (ELISA) (2008)

In the present study, we describe the generation of a series of anti-interferon-alpha8 (IFN-alpha8)-specific monoclonal antibodies (mAbs), their characterization, and the establishment of a sandwich enzyme-linked immunosorbent assay (ELISA) system for human IFN-alpha8. The sandwich ELISA system is highly sensitive to human natural IFN-alpha8 (nIFN-alpha8), with a minimum detection limit of 50 pg/mL, which did not cross-react with the other IFN preparations and several cytokines tested. Using this ELISA system, pharmacokinetic properties of an IFN-alpha preparation administered in mice were examined. We found that IFN-alpha8 has higher vascular permeability and stability than IFN-alpha2 in the circulation. These results suggest that this ELISA would be very useful for determination of IFN-alpha8 protein concentrations in various experimental samples and also of pharmacokinetic properties of IFN-alpha preparations in human.
Metal-Free Deep Eutectic Solvents: Preparation, Physical Properties, and Significance (2019)

In the past decade, reports detailing the preparation, characterization, and application of deep eutectic solvents (DESs) have grown in number significantly, showing signs of increased interest and attention. Indeed, these systems provide tunable polar environments attractive for their ease of synthesis and lack of need for purification. DESs are homogeneous systems composed of two or more components having a significantly depressed melting point compared to either constituent material. As interest and application of DESs grow, the need for a common understanding of their preparation and characterization is required. In this Perspective, we discuss metal-free DESs, focusing on their preparation, characterization of physical properties, and considerations for their application. We highlight inconsistencies or omissions in literature reports as well as factors for researchers to consider when investigating these systems.
Use of multiplanar reformatted radiographic and digitally reconstructed radiographic images for planning conformal radiation therapy. (1995)

A three-dimensional treatment planning system capable of gantry, collimator, and table rotations is required for a noncoplanar conformal therapy. Unfortunately, such a system is not widely available. A method in which multiplanar reformatted radiographic (MPR) and digitally reconstructed radiographic (DRR) images are used is presented for conformal treatment of brain tumors. A head phantom containing a target volume was scanned on a computed tomographic (CT) simulator. The coronal MPR images were digitized on a treatment planning system to create a conformal block of the planned treatment field. The DRR images were generated on the CT simulator with the setup parameters calculated from the treatment planning system. A second set of conformal blocks was generated based on DRR images of the fields. The accuracy of the MPR- and DRR-generated blocks was verified on the vertex field. The differences between the actual planning target volume and the field edges of the MPR and DRR blocks were within +/- 4 mm and +/- 2 mm, respectively. The authors conclude that the MPR and DRR images could be successfully used to generate conformal blocks and for treatment planning of noncoplanar beams in radiation therapy.
Improved post‐fault operation strategy for a cascaded H‐bridge based STATCOM (2020)

This study presents a multi‐fault tolerant strategy for a cascaded H‐bridge (CHB) based static synchronous compensator (STATCOM) with star configuration. A new method for post‐fault operation of CHB‐STATCOM is proposed, where after switch failures, the full‐bridge (FB) submodules are used as two different types of half‐bridge submodules named as positive half‐bridge (P‐HB) and negative half‐bridge (N‐HB). Using a modified level shift pulse‐width modulation technique, a combination of FB, P‐HB and N‐HB submodules is employed in three legs of the converter to generate the maximum attainable ac side voltage in post‐fault condition. In order to restore the nominal capacity of CHB‐STATCOM, the capacitor voltage of submodules is increased based on the type and number of switch failures. Furthermore, by utilising a voltage balancing strategy, the voltages of submodules’ capacitors are kept balanced and regulated at the desired value in post‐fault condition. The feasibility and effectiveness of the proposed strategy is validated on a scaled‐down 9‐level CHB‐STATCOM laboratory prototype.
ChemInform Abstract: First Example of a Third Generation Nitrone Cycloaddition. (1997)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Bond investigations of prestressed, near-surface-mounted, ribbed memory-steel bars with full bond length (2020)

The effectiveness of iron-based shape memory alloy (Fe-SMA, ‘memory-steel’) reinforcements has been proven in several studies and site applications. Due to the novelty of ribbed memory-steel reinforcement bars, limited research has been performed on their application in structural engineering, however. In this study, the bond behaviour of memory-steel bars in a near-surface-mounted configuration designed for prestressed strengthening of concrete structures was investigated. Memory-steel bars were installed on concrete blocks and activated by resistive heating before being subjected to pull-out load. The effects of heating and hence prestressing, bar ductility, bond length and rigidity of the fixation were studied based on obtained prestress, crack development, slip and bar strain. During activation of the bars, a longitudinal splitting crack with insignificant crack width occured. Two failure modes were observed during subsequent external loading, including tensile rupture of the bar when less ductile material was used, or bond failure when material with higher ductility was under investigation. Initial prestressing did not result in a reduced bond capacity. Based on the differential equation of bond behaviour, an analytical calculation procedure was developed that enables prediction of bond shear stress, slip, bar strain, pull-out load, as well as the use of a non-linear material behaviour.
New architectures for diversity in fiber loop networks (1989)

Active and passive multiplexing technologies and alternative architectural approaches to diverse routing for fiber-loop networks are described. It is shown on the basis of Markov models that the mean time to failure (MTTF) for a 1:1 protected system can be significantly improved by deploying fiber with alternate paths and duplicate central offices. Specific network examples are used to compare installed first costs of the active and passive multiplexing alternatives for various loop-diversity approaches. The results indicate the requirements for diverse routing can have a large impact on the choice of technologies and approaches for fiber loop networks. Specifically, a passive double-star architecture, using dense wavelength-division multiplexing (WDM) techniques, represents a promising technological approach to diverse routing, for it has the lowest installed first cost for diversity in the loop of the several approaches studied, both in suburban and urban areas.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Proceedings of the fifth ACM international conference on Web search and data mining (2012)

We are delighted to welcome you to the Fifth ACM International Conference on Web Search and Data Mining (WSDM 2012) held on February 8--12, 2012 in Seattle, Washington. As in the previous years, WSDM has attracted an impressive number of submissions tackling the most recent technical challenges in Web search and data mining, with an ever-growing interest in their social aspects. Now in its fifth year, the conference has reached maturity and has become a leading forum for reporting the latest research developments in the field. We are happy to present here the proceedings of the conference.

We received a total of 362 submissions from 38 countries and regions, out of which 75 were accepted for full paper publication in the proceedings, thus reaching an acceptance rate of 20.7% (compared to 22.3% last year). The accepted papers are from 17 countries, spanning four continents -- making this a truly international forum. Oral presentation slots were allocated to all papers. Yet, in order to maintain the single track model that most attendees prefer, we introduced this year a spotlight type of oral presentation. Out of the 75 accepted papers, 45 were assigned such a spotlight slot, while 30 were assigned a plenary slot. The type of slot was chosen by the Senior PC members and Program chairs, mostly based on whether the topic and the content of the paper were best suited for a large group presentation or for a more focused and interactive spotlight style of presentation.
Risk of Pancreatic Cancer in the Long-Term Prospective Follow-Up of Familial Pancreatic Cancer Kindreds (2022)

Pancreatic cancer risk is strongly dependent on family history, including both the degree of relationship(s) and age of onset of pancreatic cancer in relatives. These risk estimates will help inform the design of early detection studies and the risk and benefit analysis of screening trials.
Surface++ (2019)

We present Surface++, which leverages our previous work SATURN, a self-powered flexible acoustic sensor, and ZEUSSS, a passive wireless sound communication technique using analog backscatter, to create a scalable and self-sustainable wireless sound sensing surface. Our new prototype allows for large area acoustic sensing using modular fabrication techniques with the promise of being fully printable. A single small Surface++ patch can be used to extend voice and gesture input for everyday surfaces, while our more sensitive Surface++ modular array allows for large-area context sensing and localization.
Adjoint Sensitivity Optimization of Three-Dimensional Directivity-Enhancing, Size-Reducing GRIN Lenses (2022)

Gradient Index (GRIN) lenses have the potential to tailor the radiation behavior of existing antennas for improved gain performance. Conventional methods such as transformation optics have mainly focused on two-dimensional (2-D) problems (e.g., axisymmetric or sectoral horn lenses), and often produce designs with unrealistic material parameters or poor impedance matching. In this letter, we propose a new method of designing freeform GRIN lenses using adjoint sensitivities to rapidly find optimal solutions within feasible material bounds that achieve desired performance goals. A proof-of-concept 3-D GRIN lens that achieves comparable performance to a larger 20 dB standard gain horn albeit with considerable size reduction is optimized, fabricated, and tested in order to highlight the effectiveness of the proposed approach.
Impossible plaintext cryptanalysis and probable-plaintext collision attacks of 64-bit block cipher modes. (2012)

The block cipher modes of operation that are widely used (CBC, CTR, CFB) are secure up to the birthday bound; that is, if w2 or fewer bits of data are encrypted with a w-bit block cipher. However, the detailed security properties close to this bound are not widely appreciated, despite the fact that 64-bit block ciphers are sometimes used in that domain. This work addresses the issue by analyzing plaintext-recovery attacks that are effective close to that bound. We describe possibleplaintext attacks, which can learn unknown plaintext values that are encrypted with CBC, CFB, or OFB. We also introduce impossible plaintext cryptanalysis, which can recover information encrypted with CTR, and can improve attacks against the aforementioned modes as well. These attacks work at the birthday bound, or even slightly below that bound, when the target plaintext values are encrypted under a succession of keys.
Interleukin-7 retroviruses transform pre-B cells by an autocrine mechanism not evident in Abelson murine. (1991)

In this study, we have constructed retroviral vectors expressing the interleukin-7 (IL-7) cDNA and have used infection with these retroviruses to express this cytokine endogenously in an IL-7-dependent pre-B-cell line. Infection with IL-7 retroviruses, but not with a control retrovirus, resulted in the conversion of the cells to IL-7 independence. The frequency at which this occurred, together with data on vector expression levels, indicated that secondary events were required for factor independence in this system. Southern analysis showed that the IL-7-dependent clones harbored unrearranged copies of the vector proviruses. The factor-independent cells produced variable quantities of IL-7 as measured by an IL-7-specific bioassay, and their proliferation could be substantially inhibited by a neutralizing antibody directed against IL-7, indicating that a classical autocrine-mechanism was responsible for their transformation. These IL-7-independent cells were tumorigenic, in contrast to the parental IL-7-dependent cells or those infected with a control vector. These results showed that IL-7 could participate in the malignant transformation of pre-B cells. However, neither of two Abelson murine leukemia virus (A-MuLV)-transformed pre-B-cell lines expressed detectable IL-7 mRNA, at a level of sensitivity corresponding to less than one molecule of mRNA per cell. Moreover, the proliferation of the A-MuLV transformants was unaffected by addition of the IL-7 antisera under conditions in which parallel experiments with IL-7 virus-infected cells resulted in greater than 70% growth inhibition. Thus, transformation of pre-B cells by A-MuLV was not associated with a demonstrable autocrine loop of IL-7 synthesis. These results show that IL-7 can participate in the malignant transformation of pre-B cells and suggest studies aimed at assessing the role of autocrine production of IL-7 in the generation of human leukemias and lymphomas.
Table S2 from Impaired Death Receptor Signaling in Leukemia Causes Antigen-Independent Resistance by Inducing CAR T-cell Dysfunction (2023)

&lt;p&gt;Classification of KEGG hsa04210 gene set to develop intrinsic and extrinsic death receptor gene sets&lt;/p&gt;
PTP/IP Adapter Design and Connectivity Techniques for Legacy Imaging Appliances (2007)

PTP/IP is an emerging connectivity standard for networked imaging appliances. It combines the ease of use and seamless connectivity of Picture Transfer Protocol (PTP) with the ubiquity of TCP/IP networks. In this paper we examine methods to enable legacy PTP appliances to gain the benefits of PTP/IP through the design of bridge and gateway adapters which can be simply plugged into the USB ports of such appliances. The internal firmware stacks of such adapters are described and practical case studies describe the adaptation of legacy PTP cameras and printers to connect over a conventional 802.11 wireless LAN.
Low Complexity Full Duplex MIMO: Novel Analog Cancellation Architectures and Transceiver Design (2018)

Incorporating full duplex operation in Multiple Input Multiple Output (MIMO) systems provides the potential of boosting throughput performance. However, the hardware complexity of the analog self-interference canceller in emerging full duplex MIMO designs mostly scales with the number of transmit and receive antennas, thus exploiting the benefits of analog cancellation becomes impractical for full duplex MIMO transceivers, even for moderate number of antennas. In this paper, we present two novel architectures for the analog canceller comprising of reduced number of cancellation elements, compared to the state of the art, and simple multiplexers for efficient signal routing among the transmit and receive radio frequency chains. One architecture is based on analog taps (tap refers to a line of fixed delay, variable phase shifter, and attenuator) and the other on AUXiliary (AUX) Transmitters (TXs) that locally generate the cancellation signal. In contrast to the available analog cancellation architectures, the values for each tap or each AUX TX and the configuration of the multiplexers are jointly designed with the digital transmit and receive beamforming filters according to certain performance objectives. Focusing on a narrowband flat fading channel model as an example, we present a general optimization framework for the joint design of analog self-interference cancellation and digital beamforming. We also detail the sum rate optimization objective together with its derived solution for the latter architectural components. Representative computer simulation results demonstrate the superiority both in terms of hardware complexity and achievable performance of the proposed low complexity full duplex MIMO schemes over the lately available ones.
Computing Delay-Constrained Least-Cost Paths for Segment Routing is Easier Than You Think (2020)

With the growth of demands for quasi-instantaneous communication services such as real-time video streaming, cloud gaming, and industry 4.0 applications, multi-constraint Traffic Engineering (TE) becomes increasingly important. While legacy TE management planes have proven laborious to deploy, Segment Routing (SR) drastically eases the deployment of TE paths and thus became the most appropriate technology for many operators. The flexibility of SR sparked demands in ways to compute more elaborate paths. In particular, there exists a clear need in computing and deploying Delay-Constrained Least-Cost paths (DCLC) for real-time applications requiring both low delay and high bandwidth routes. However, most current DCLC solutions are heuristics not specifically tailored for SR. In this work, we leverage both inherent limitations in the accuracy of delay measurements and an operational constraint added by SR. We include these characteristics in the design of BEST2COP, an exact but efficient ECMP-aware algorithm that natively solves DCLC in SR domains. Through an extensive performance evaluation, we first show that BEST2COP scales well even in large random networks. In real networks having up to thousands of destinations, our algorithm returns all DCLC solutions encoded as SR paths in way less than a second.