gebhart/patrepeval huggingface dataset:
Capacity enhancement through opportunistic activation of relays in Cloud RAN deployments (2013)

This paper considers a combination of Coordinated Multi Point Transmission (CoMP) and opportunistic relay activation to enhance capacity in highly dense deployments. The activation of a small number of relays, selected judiciously from a large candidate set, enhances performance by restricting CoMP transmission to those UEs for which channel conditions allow interference to be mitigated effectively. Two opportunistic relay activation algorithms are considered, based on geometry and utility-metrics, respectively. System-level evaluations illustrate that a noticeable capacity gain can be achieved with such techniques, especially at the cell-edge.
ChemInform Abstract: Fluorination of a Bicyclic Keto Lactam (I) with Sulfur Tetrafluoride. (1994)

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.
Influence of Annealing on Performance for Hetero-Junction a-Si/c-Si Devices (2008)

The passivation of the crystalline silicon surface is directly related to the open circuit voltage for the hetero-junction a-Si/c-Si solar cell, and efficiencies above 22% and open-circuit voltages (Voc) above 700 mV are demonstrated in the literature. To achieve very high Voc and effective lifetime for these c-Si devices a high quality a-Si:H passivation will be needed. For thin film amorphous silicon based devices it is well-known that the PECVD conditions required to produce high quality a-Si:H are very close to the region where micro-crystalline Si is deposited. However, for the growth of a passivation layer on crystalline silicon these conditions often result in epitaxial growth at the interface, reducing the effective lifetime and Voc of those devices. In this paper, data will be presented that correlates passivation properties of intrinsic amorphous silicon films to device performance. Specifically it is demonstrated that the passivation properties change during the anneal processes applied to cells during the manufacturing of full devices.
Supplementary Figure 2 from A Tricin Derivative from <i>Deschampsia antarctica</i> Desv. Inhibits Colorectal Carcinoma Growth and Liver Metastasis through the Induction of a Specific Immune Response (2023)

&lt;p&gt;Preconditioning of DCs derived from (A) cancer patients and healthy donors, and (B) mice using10 μg/ml Antartina{trade mark, serif} enhances the expression of activation markers&lt;/p&gt;
Acoustic Thrust Estimation on Turbofan Engines (2022)

An acoustic time of flight sensor is operated across a turbofan exhaust plume and is calibrated to provide nozzle thrust in a ground-test cell. Such a sensor could potentially be used to monitor any degradation of engine performance in an on-wing application. Validation of the technique was performed on an AE3007-A1E turbofan engine. Using a pneumatic horn and a set of microphones, the acoustic time of flight across the exhaust plume was estimated. A correlation-based approach was then used to relate the acoustic time of flight to the thrust produced by the engine. The thrust estimates resulting from this single-receiver approach matched load cell data within a root-mean-square (RMS) error of 1.1% full scale. The same approach was also used to estimate the thrust of a TFE731-2B engine. In that case, the estimated thrust matched load cell data to within an RMS error of 1.5% full scale. The technique is shown to significantly improve on a previous technique that produced errors of 5% RMS full scale or greater. Possible explanations for the comparative inaccuracy of the previous technique are analyzed.
Cryosurgical ablation of the prostate (2005)

Cryoablation was a feasible treatment option in patients with organ-confined prostate carcinoma who had high-risk features. Longer follow-up will be necessary to determine the effectiveness of this approach.
ChemInform Abstract: Novel Palladium‐on‐Carbon/Diphenyl Sulfide Complex for Chemoselective Hydrogenation: Preparation, Characterization, and Application. (2008)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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.
Visible photon generation via four-wave mixing in near-infrared near-zero-index thin films (2021)

Optical nonlinearities can be strongly enhanced by operating in the so-called near-zero-index (NZI) regime, where the real part of the refractive index of the system under investigation approaches zero. Here we experimentally demonstrate semi-degenerate four-wave mixing (FWM) in aluminum zinc oxide thin films generating radiation tunable in the visible spectral region, where the material is highly transparent. To this end, we employed an intense pump (787 nm) and a seed tunable in the NIR window (1100-1500 nm) to generate a visible idler wave (530-620 nm). Experiments show enhancement of the frequency conversion efficiency with a maximum of 2% and a signal-to-pump detuning of 360 nm. Effective idler wavelength tuning has also been demonstrated by operating on the temporal delay between the pump and signal.
Autoimmune Disease and T-cell Immunologic Recognition (1989)

The immune system has evolved T-cell receptors (TCRs) and B-cell receptors with exquisite specificity to distinguish self from nonself. On occasion, the immune system will attack self-components leading to autoimmune disease (for review, see Kumar et al. 1989). Approximately 4 years ago, we initiated studies of autoimmune responses based on several general concepts. First, it is clear that an understanding of the molecular features of immune recognition will be a key to understanding autoimmune responses since helper T (TH) cells are pivotal in initiating most immune responses. Specifically, we focused our efforts on the trimolecular complex responsible for TH-cell activation: (1) the TCR for antigen, (2) the antigen-presenting class II molecules encoded by the major histocompatibility complex (MHC), and (3) the peptide antigen (Fig. 1). Second, it is likely that the primary response to self-antigens may be limited, both with regard to the number of peptide epitopes employed for TH-cell...
Too Much, Too Little, or Just Right? The Importance of Allograft Portal Flow in Deceased Donor Liver Transplantation (2019)

These results suggest that intraoperative PF plays an important role in determining early graft outcomes after DDLT.
Reduced absorption of saturated fatty acids and resistance to diet-induced obesity and diabetes by ezetimibe-treated andNpc1l1−/−mice (2008)

The impact of NPC1L1 and ezetimibe on cholesterol absorption are well documented. However, their potential consequences relative to absorption and metabolism of other nutrients have been only minimally investigated. Thus studies were undertaken to investigate the possible effects of this protein and drug on fat absorption, weight gain, and glucose metabolism by using Npc1l1(-/-) and ezetimibe-treated mice fed control and high-fat, high-sucrose diets. Results show that lack of NPC1L1 or treatment with ezetimibe reduces weight gain when animals are fed a diabetogenic diet. This resistance to diet-induced obesity results, at least in part, from significantly reduced absorption of dietary saturated fatty acids, particularly stearate and palmitate, since food intake did not differ between groups. Expression analysis showed less fatty acid transport protein 4 (FATP4) in intestinal scrapings of Npc1l1(-/-) and ezetimibe-treated mice, suggesting an important role for FATP4 in intestinal absorption of long-chain fatty acids. Concomitant with resistance to weight gain, lack of NPC1L1 or treatment with ezetimibe also conferred protection against diet-induced hyperglycemia and insulin resistance. These unexpected beneficial results may be clinically important, given the focus on NPC1L1 as a target for the treatment of hypercholesterolemia.
High-isolation metamaterial MIMO antenna (2017)

This paper presents the design of a metamaterial MIMO antenna which operates at 5.8 GHz. The left handed single cell of series capacitor and shunt inductor are considered the main block of the antenna elements. The configuration of the shunt stub is reversed to achieve lower coupling between the antenna elements The small size of only 2.93cm×2.6cm and high isolation of more than 35 dB are considered to be the main advantageous of the proposed metamaterial MIMO design. Experimental measurements of the fabricated antenna design agree with simulation results.
Protein–Protein Interactions: A Simple Strategy to Identify Binding Sites and Peptide Antagonists (2009)

Secondary structure motifs and small protein domains can act as building blocks that are isolated and investigated to gain insights into protein global structure but can also modulate interactions with external partners. Most progress has been made in this field using synthetic peptides. Fragmentation of folded proteins by proteolytic enzymes that act preferentially on exposed and less structured sites can help to isolate shorter polypeptides with preserved secondary and tertiary structures that mimic the original protein architecture. Such molecules can be used as probes for structural studies and as tools for in vitro assays to select active fragments useful as agonists or antagonists of the original protein or as scaffolds for the design of more potent and selective ligands. This simple but effective proteolytic methodology has been successfully applied to determine antagonists of protein-protein interactions, allowing the identification of inhibitors with high efficacy and specificity. Here, we present several studies including the complex between phosphoprotein enriched in diabetes/phosphoprotein enriched in astrocytes and phospholipase 1, believed to play a relevant role in the insulin resistance mechanism in phosphoprotein enriched in diabetes/phosphoprotein enriched in astrocytes-overexpressing tissues, the self-association of BCL10 caspase recruitment domain that mediates a protein oligomerization process responsible for NF-kappaB activation and the self-association of growth arrest and DNA damage-inducible factor 45 beta, a major player of the endogenous NF-kappaB-mediated resistance to apoptosis.
Maintenance of muscle mass and load‐induced growth in Muscle RING Finger 1 null mice with age (2013)

Age-related loss of muscle mass occurs to varying degrees in all individuals and has a detrimental effect on morbidity and mortality. Muscle RING Finger 1 (MuRF1), a muscle-specific E3 ubiquitin ligase, is believed to mediate muscle atrophy through the ubiquitin proteasome system (UPS). Deletion of MuRF1 (KO) in mice attenuates the loss of muscle mass following denervation, disuse, and glucocorticoid treatment; however, its role in age-related muscle loss is unknown. In this study, skeletal muscle from male wild-type (WT) and MuRF1 KO mice was studied up to the age of 24 months. Muscle mass and fiber cross-sectional area decreased significantly with age in WT, but not in KO mice. In aged WT muscle, significant decreases in proteasome activities, especially 20S and 26S β5 (20-40% decrease), were measured and were associated with significant increases in the maladaptive endoplasmic reticulum (ER) stress marker, CHOP. Conversely, in aged MuRF1 KO mice, 20S or 26S β5 proteasome activity was maintained or decreased to a lesser extent than in WT mice, and no increase in CHOP expression was measured. Examination of the growth response of older (18 months) mice to functional overload revealed that old WT mice had significantly less growth relative to young mice (1.37- vs. 1.83-fold), whereas old MuRF1 KO mice had a normal growth response (1.74- vs. 1.90-fold). These data collectively suggest that with age, MuRF1 plays an important role in the control of skeletal muscle mass and growth capacity through the regulation of cellular stress.
Main achievements to date toward the use of RF MEMS into space satellite payloads (2005)

MEMS (Microelectromechanical Systems) technology plays a key role in the on-going miniaturization of electronic modules for automotive and consumer electronic products. In the microwave field, RF MEMS switches exhibit excellent RF properties as low power consumption, high linearity, low loss and high isolation compared to solid state electronic solutions. Based on these performances, we will present a status of the potentialities of RF-MEMS devices for application to future generation of space satellite payloads through some selected demonstrations achieved within Alcatel Space.
Imaging Colorimetry Using a Digital Camera (1999)

In this work, we investigate the use of a digital camera for colorimetry. Our system consists of a measurement device and a corresponding calibration mapping. The goal is to design a system that will accurately assess the color of a sample. We develop two colorimetry systems by applying model-based and regression-based techniques. For both systems, the measurement device is formed by a digital camera and a set of filters. The term multi-exposure refers to the multiple snapshots taken by the camera along with filters. The calibration mapping which consists of matrices then takes these filtered camera RGB outputs, and returns the CIE XYZ tristimulus values under several pre-selected illumination conditions. For the model-based system, a model for the measurement device is employed; and our objective is to find the optimal filters and the corresponding calibration sets that minimize a cost function which accounts for errors in L*a*b* space, system robustness, and filter smoothness. For the regression-based system, no modeling technique is applied to the measurement device. The objective is simply to find the optimal calibration matrices that minimize the total least squared errors of a given color set in CIE XYZ coordinates under several pre-selected illumination conditions. We apply both types of colorimetry systems to two specific tasks: general purpose measurement of color samples and colorimetry of human teeth. We present experimental results for both applications. Finally, in order to measure the parameters for these systems and evaluate their performance, we had to develop special instrumentation. We will briefly describe this effort as well.
The role of neuregulin4 and HER4 in gastrointestinal malignant lymphoma (2011)

The human epidermal growth factor (EGF) receptor (HER) family consists of four receptors that bind to ligands sharing an EGF-like motif. The HER family of receptor tyrosine kinases and their ligands (EGF family) are known to play a significant role in gastrointestinal cancer. In particular, the EGF receptor, HER1, is one of the main candidates for the molecular-targeted therapy of colon cancer, and HER2 is a candidate for the treatment of gastric cancer which overexpresses HER2. In contrast, the role of the HER and EGF families in malignant lymphoma has not been fully elucidated. In this study, we investigated the expression and function of the HER and EGF families in lymphoma cell lines and tumor samples. Reverse transcription polymerase chain reaction revealed that the ligands for HER1 were mainly expressed in gastric cancer and colon cancer cell lines, but not in lymphoma cell lines. On the other hand, the EGF family member, neuregulin (NRG) 4, was highly expressed in lymphoma cell lines. Immunohistochemical analyses of malignant lymphoma clinical samples revealed that NRG4 and HER4 were mainly expressed in mucosa-associated lymphoid tissue (MALT) and follicular lymphoma. Immunoprecipitation of Raji and Daudi cell lines revealed that recombinant NRG4 induced the tyrosine phosphorylation of HER4. Additionally, recombinant NRG4 activated the proliferation of lymphoma cell lines. These findings suggest that the NRG4-HER4 axis plays a major role in the proliferation of malignant lymphoma cells in the gastrointestinal tract.
Noble Metals as a Source of Continuous Scattering in Fluoride Glasses (1988)

Submicrometer scattering centers in fluorozirconate glasses were analyzed in an analytical electron microscope. Spherical platinum particles were found most frequently; other morphologies and noble metals such as gold, rhodium, and iridium were also observed.
How Exposures to Biologics Influence the Induction and Incidence of Asthma (2005)

A number of environmental factors can affect the development and severity of allergy and asthma; however, it can be argued that the most significant inhaled agents that modulate the development of these conditions are biologics. Sensitization to environmental allergens is an important risk factor for the development of asthma. Innate immune responses are often mediated by receptors on mononuclear cells whose primary ligands arise from microorganisms. Many pathogens, especially viruses, target epithelial cells and affect the host immune response to those pathogens. The acquired immune response to an allergen is influenced by the nature of the innate immune system. Products of innate immune responses to microbes promote T(H)1-acquired responses. In the absence of T(H)1 responses, T(H)2 responses can dominate. Central to T(H)1/T(H)2 balance is the composition of contaminants that derive from microbes. In this review we examine the biology of the response to allergens, viruses, and bacterial products in the context of the development of allergy and asthma.
Effects of Confinement on Microstructure and Charge Transport in High Performance Semicrystalline Polymer Semiconductors (2012)

Abstract The film thickness of one of the most crystalline and highest performing polymer semiconductors, poly(2,5‐bis(3‐tetradecylthiophen‐2‐yl)thieno[3,2‐b]thiophene) (PBTTT), is varied in order to determine the effects of interfaces and confinement on the microstructure and performance in organic field effect transistors (OFETs). Crystalline texture and overall film crystallinity are found to depend strongly on film thickness and thermal processing. The angular distribution of crystallites narrows upon both a decrease in film thickness and thermal annealing. These changes in the film microstructure are paired with thin‐film transistor characterization and shown to be directly correlated with variations in charge carrier mobility. Charge transport is shown to be governed by film crystallinity in films below 20 nm and by crystalline orientation for thicker films. An optimal thickness is found for PBTTT at which the mobility is maximized in unannealed films and where mobility reaches a plateau at its highest value for annealed films.
Densities in free groups and $\mathbb{Z}^k$, Visible Points and Test Elements (2007)

In this article we relate two different densities. Let F k be the free group of finite rank k 2 and let be the abelianization map from F k onto Z k . We prove that if S Z k is invariant under the natural action of SL(k, Z) then the asymptotic density of S in Z k and the annular density of its full preimage -1 (S) in F k are equal. This implies, in particular, that for every integer t 1, the annular density of the set of elements in F k that map to t-th powers of primitive elements in Z k is equal to
Performance evaluation of a DDST based SIMO SC system with PAPR reduction (2010)

In this paper we concentrate on the symbol level peak to average power ratio (PAPR) increase caused by a data dependent superimposed pilot sequence. Because we add the pilot sequence on top of the user data symbols, the dynamic range of the transmitted signal may increase significantly. We propose the usage of a simple limiter in the transmitter and a hard symbol estimate based iterative estimator for the receiver. We show by simulations that if we allow a modest increase in the symbol level PAPR, the spectral efficiency of the data dependent superimposed pilot based system is better than the traditional time domain multiplexed pilot based system in a block fading channel.
Multi-Frequency Acoustic Levitation and Trapping of Particles in All Degrees of Freedom (2022)

Stabilization of the position and orientation of non-spherical, sub-wavelength particles in mid-air is required for using acoustic levitation forces in applications such as automation of micro manufacturing processes, 3-D scanning, and inspection. Acoustic locking has previously been demonstrated by time-multiplexing of different acoustic traps at the same frequency. In this case, the magnitude of the acoustic levitation forces and the stabilizing torque are coupled by the ratio of the durations during which the different traps are applied and cannot be adjusted independently assuming operation at maximum power. This work presents a compact device that uses a method for independently adjusting the vertical trapping forces and the stabilizing torque using two different ultrasonic frequencies. A 40-kHz vertical standing wave is used to generate levitation forces that counteract the gravitational force. Additionally, a 25-kHz horizontal standing wave is used to generate a tunable stabilizing torque. Using this method, objects made from high-density materials across a wide range of geometries can be locked acoustically with increased stability compared with state-of-the-art methods. This is demonstrated by locking tin cuboids with a density of 7.3 g/cm<sup>3</sup> and plastic cuboids with average side lengths between 0.9 and 3.5 mm. The experimental results demonstrate torsional spring constants of up to 50 nN · m/rad and an orientation stability of <7.5°.
Cobalt Hydroformylation of Olefins in a Biphasic System Using Ionic Liquids – Development and Reaction Optimization by a Design Experiment Approach (2013)

The present paper describes the use of experimental designs (DoE) in association with high throughput experimentation devices for the optimization of cobalt hydroformylation of olefins in a biphasic system using ionic liquids. The main goal of the study was to gain insight into the various factors ([Co]<sub><i>NAIL<i/><sub/>, L/Co, Ph<sub><i>org<i/><sub/>/Ph<sub><i>NAIL<i/><sub/>, pressure and temperature) and how they interact and influence the activity and selec-tivity of the catalyst. On the basis of a D-Optimal design, the study pointed out that temperature and to a less extend “Phase<sub><i>orga<i/><sub/>/Phase<sub><i>NAIL<i/><sub/>” ratio are the most critical parameters. These conclusions confirm to a certain extend, the initial hypothesis formulated to describe the process operation. Furthermore, this strategy in association with high throughput experimentation devices, allows to predict catalytic results in the major part of a cubic space (representing the experimental domain) giving us the opportunity to determine the most suitable catalysts composition and optimal reaction conditions.
Contract-Based Quality-of-Service Assurance in Dynamic Distributed Systems (2022)

To offer an infrastructure for autonomous systems offloading parts of their functionality, dynamic distributed systems must be able to satisfy non-functional quality-of-service (QoS) requirements. However, providing hard QoS guarantees without complex global verification that are satisfied even under uncertain conditions is very challenging. In this work, we propose a contract-based QoS assurance for centralized, hierarchical systems, which requires local verification only and has the potential to cope with dynamic changes and uncertainties.