gebhart/patrepeval huggingface dataset:
Opportunistic User Association for Multi-Service HetNets Using Nash Bargaining Solution (2014)

We propose an opportunistic user association for multi-service HetNets aiming to guarantee quality of service (QoS) of human-to-human (H2H) traffic while providing fair resource allocation for machine-to-machine (M2M) traffic. We classify H2H traffic as primary service and M2M traffic as secondary service. The opportunistic user association is formulated as an optimization problem, which can be resolved by Nash Bargaining Solution (NBS). Simulation results show that the proposed algorithm can enable network operators to support fair resource allocation for M2M traffic without jeopardizing QoS of H2H traffic.
Optical Switching and Fluorescence Modulation in Photochromic Metal Complexes (1998)

Among organic photochromic compounds (attractive for optical data storage) diarylethenes are of special interest as switching units. They undergo a reversible electrocyclic interconversion between a colorless, non-conjugated open state (see Figure) and a colored, conjugated closed state. The design and synthesis of dithienylethene-tungsten complexes and the photoswitching of their luminescence properties is reported.
Organization of intramembrane particles in freeze-cleaved gap junctions of rat graafian follicles: optical-diffraction analysis (1976)

Gap junctions were identified in the membrana granulosa and cumulus oophorus, and between cells of the internal theca, of the preovulatory rat follicle. In replicas of freeze fractured follicles, the A face presented clusters of closely packed intramembrane particles, 7--9 nm in diameter, forming a mosaic pattern, while the B face showed a similar pattern of small pits. Optical diffraction analysis of these electron micrographs revealed that both the intramembrane particles and the corresponding pits were organized in hexagonal lattices with centre-to-centre spacing of 9-10 nm. In small junctions (up to 0.4 mum in diameter), both A and B faces generally consisted of a single lattice, while large junctions (0.5-2 mum) contained multiple lattices differing in orientation. Occasionally intramembrane particles and pits were more loosely arranged throughout the junctional area and failed to show a hexagonal pattern. Both granulosa and thecal cells often contained intracellular vesicles resembling annular junctions. These contained intramembrane particles whose assembly resembled that of the gap junctions with regard to periodicity and lattice organization. Examination of thin section of thin sections suggested that small gap junctions occur also between cytoplasmic processes of coronal cells and the oolemma. No tight junctions were detected between granulosa cells and between thecal cells.
Syntheses and multinuclear NMR characterizations of .alpha.-[SiMo2W9O39]8- and .alpha.-[SiMo3-xVxW9O40](4+x)- (x = 1, 2) heteropolyoxometalates (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSyntheses and multinuclear NMR characterizations of .alpha.-[SiMo2W9O39]8- and .alpha.-[SiMo3-xVxW9O40](4+x)- (x = 1, 2) heteropolyoxometalatesEmmanuel Cadot, Rene Thouvenot, Andre Teze, and Gilbert HerveCite this: Inorg. Chem. 1992, 31, 20, 4128–4133Publication Date (Print):September 1, 1992Publication History Published online1 May 2002Published inissue 1 September 1992https://pubs.acs.org/doi/10.1021/ic00046a026https://doi.org/10.1021/ic00046a026research-articleACS PublicationsRequest reuse permissionsArticle Views280Altmetric-Citations49LEARN 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
Effect of Helium implantation on gettering and electrical properties of 4H-SiC epilayers (2011)

This paper tests the gettering ability of sites created by He implantation in 4H‐SiC while heating the sample or not, and their impact on carrier lifetime. The spatial distribution of implantation‐induced defects (cavities, stacking faults and dislocations) is studied by transmission electron microscopy (TEM) and is compared to gold profiles performed by Rutherford Backscattering (RBS) in samples intentionally contaminated with gold. Minority carrier lifetimes are also measured with a specific set‐up based on microwave photoconductivity decay (μ‐PCD). Though gold atoms do not seem to be efficiently trapped by cavities, the presence of dislocations is of major importance to monitor gold diffusion. Indeed, they can double both its level and its diffusion length in the bulk. Gold is assumed to diffuse faster along dislocation cores. Besides, the implantation‐related defects are found to improve the carrier lifetime in the material, but the role of He2+ left in cavities remains to be investigated.
EVALUATION OF CLIENT PREFERENCE FOR FUNCTION‐BASED TREATMENT PACKAGES (1997)

Functional communication training (FCT) and noncontingent reinforcement (NCR) are commonly prescribed treatments that are based on the results of a functional analysis. Both treatments involve delivery of the reinforcer that is responsible for the maintenance of destructive behavior. One major difference between the two treatment procedures is that client responding determines reinforcement delivery with FCT (e.g., reinforcement of communication is delivered on a fixed-ratio 1 schedule) but not with NCR (e.g., reinforcement is delivered on a fixed-time 30-s schedule). In the current investigation, FCT and NCR were equally effective in reducing 2 participants' destructive behavior that was sensitive to attention as reinforcement. After the treatment analysis, the participants' relative preference for each treatment was evaluated using a modified concurrent-chains procedure. Both participants demonstrated a preference for the FCT procedure. The results are discussed in terms of treatment efficacy and preference for control over when reinforcement is delivered. In addition, a method is demonstrated in which clients with developmental disabilities can participate in selecting treatments that are designed to reduce their destructive behavior.
Airspace design process for dynamic sectorisation (2007)

Air Traffic Control in core Europe reaches the limits of available airspace capacities. Therefore new roles are introduced to shift workload away from the executive (radar) controller, who operates at the limit and is the capacity bottleneck, towards a more planning oriented but yet adaptive control function - the Multi Sector Planner. This Multi Sector Planner will be responsible for the expeditious flow through several sectors. The new role will execute a set of actions on both, airspace and traffic flows to reduce workload for the sector team or balance workload between sectors, so that overall centre capacity is increased. One of the central support tools is fine-grained, tactical, dynamic airspace management in conjunction with tactical flow measures. The study presents the airspace design process and tools that have been applied for the development of the future airspace of the Maastricht Upper Area Control Centre, based on the principles of dynamic airspace management.
Novel Nafion/ORMOSIL Hybrids via in Situ Sol-Gel Reactions. 1. Probe of ORMOSIL Phase Nanostructures by Infrared Spectroscopy (1995)

Novel [polymer]/[organically modified silicon oxide (ORIMOSIL)] hybrids were formulated via sol-gel reactions of mixtures of tetraethoxysilane (TEOS) and diethoxydimethylsilane (DEDMS) in the nanophase-separated morphology of perfluorosulfonic acid (PFSA) films. Molecular structures of ORMOSIL phases were investigated by FT-IR spectroscopy and the spectra compared with those of corresponding bulk ORMOSILs. Spectra are similar for PFSA in situ and bulk ORMOSILs, suggesting that short-range molecular structures in the two states are in fact comparable. Spectral trends with ORMOSIL composition suggest that similar D, Q sequence distributions exist for the two systems. There is evidence of co-condensation between Q and D units within the PFSA, as well as in the bulk ORMOSILs. As DEDMS:TEOS increases, ORMOSIL structures in both in situ and bulk states are increasingly more linear. It appears that a spectrum of energetic environment, or polarity, in the clusters of perfluorosulfonate ionomers can be tailored by adjusting the ratio of Si-OH and Si-CH3 groups in ORMOSIL nanophases.
Spectro-temporal imaging of femtosecond events (2000)

We demonstrate a new technique for the direct, real-time, femtosecond scale temporal measurement based on the conversion of temporal information to the spectral domain. The potential of the method has been experimentally investigated with an optical fiber spectral compressor device, first stretching and up-chirping the pulses in a prism dispersive delay line, and afterwards compensating the induced chirp by means of cross-phase modulation in a single-mode fiber. Spectro-temporal imaging (STI) reduces the problem of high-resolution temporal measurements to standard spectrometry.
Active Exoskeleton Control Systems: State of the Art (2012)

To get a compliant active exoskeleton controller, the force interaction controllers are mostly used in form of either the impedance or admittance controllers. The impedance or admittance controllers can only work if they are followed by either the force or the position controller respectively. These combinations place the impedance or admittance controller as high-level controller while the force or position controller as low-level controller. From the application point of view, the exoskeleton controllers are equipped by task controllers that can be formed in several ways depend on the aims. This paper presents the review of the control systems in the existing active exoskeleton in the last decade. The exoskeleton control system can be categorized according to the model system, the physical parameters, the hierarchy and the usage. These considerations give different control schemes. The main consideration of exoskeleton control design is how to achieve the best control performances. However, stability and safety are other important issues that have to be considered.
Starting Behavior of Gathering Lines and Pipelines Filled with Gelled Prudhoe Bay Oil (1971)

The apparent yield strength of Prudhoe Bay crude oil is influenced by its composition and its thermal and shear history. Laboratory studies were conducted with this gelled crude to determine yield behavior in compressible and essentially incompressible tubes, and it is concluded that with proper design, the proposed Trans Alaska pipeline can be restarted without difficulty. pipeline can be restarted without difficulty. Introduction The discovery of large quantities of oil in arctic regions has led to a number of unconventional difficulties in producing and transporting oil under conditions of low air and soil temperatures. One of the problems aggravated by low temperatures is that of gelling of oils. Although this difficulty has already been encountered during transmission of high-pour-point oils, it is expected that gelling will be much more severe or will be encountered more frequently as ambient temperatures fall far below zero. This paper describes the study of a particular oil, that from the Sadlerochit zone of the Prudhoe Bay field. Although the gelling and rheological behavior will be described in detail for this oil alone, we believe that much of the material presented here will be generally suitable for understanding starting behavior of gathering lines and pipelines filled with other gelled oils. Factors Affecting the Yield Strength of Prudhoe Bay Oil The concept of a "yield strength" of a gel has often proved useful in understanding the behavior of gelled proved useful in understanding the behavior of gelled oils. If it is imagined that a sample of gelled oil in a tube will exhibit a specific yield strength, then experimentally the pressure differential across the length of tube can be increased until the oil just begins to move. The force pushing the gel, D2 p/4, is set equal to tained by monotonically cooling the oil at less than the shear resistance along the wall, DLt, and we can calculate a yield strength of the gel. Although the rheological study described later will show that this concept is quite oversimplified, yield strengths determined this way can reveal the qualitative effects of variables on gel behavior. Using this approach, we have found that the following factors will significantly affect the yield strength of Prudhoe Bay oil:temperature history,shear, Prudhoe Bay oil:temperature history,shear,aging, andcomposition. Many of these same factors have been reported for other oils by previous investigators. Temperature History To investigate the effect of any variable, it is necessary first to return the oil to what is thought to be its reservoir condition. For Prudhoe Bay oil this is accomplished by reheating it to 180 degrees F (approximately the reservoir temperature) and holding for at least 1 hour. After this "beneficiation" treatment, the oil is relatively insensitive to any thermal treatment that it receives at temperatures above about 100 degrees F. However, at less than 100 degrees F three aspects of its subsequent thermal history measurably influence yield strengths. P. 301
A comparison of the effects of omeprazole and ranitidine on gastric secretion in women undergoing elective Caesarean section (1990)

This study compares the efficacy of omeprazole and ranitidine at reducing gastric secretion in obstetric patients. Sixty-five women scheduled to undergo elective Caesarean section under general anaesthesia were randomly allocated to receive either omeprazole 40 mg or ranitidine 150 mg orally at 2200 hours the night before and at 0600 hours on the morning of surgery. Intragastric pH and volume were measured immediately after induction of anaesthesia and on completion of surgery. All patients had gastric aspirates less than 25 ml. None of the omeprazole group had an aspirate of pH less than 3.5. Six patients (19%) in the ranitidine group had aspirates of pH less than 3.5, a significant difference from the omeprazole group (p less than 0.05). Of these six, two (6%) had aspirates of pH less than 2.5. Hence this study showed that omeprazole was more effective and consistent than ranitidine at maintaining gastric pH greater than 3.5.
Grazing incidence optics for soft x-ray microscopy (1992)

We have developed and brought into operation a new type of scanning soft x-ray microscope basing on a grazing incidence mirror. A ring shaped ellipsoidal mirror serves as a nonimaging but concentrating optical element to produce a microfocus. The specimen is mechanically scanned, and the image is recorded a pixel at a time. Transmission, total photoelectron yield, photoelectron spectroscopy, fluorescence, and stimulated desorption of ions and neutrals can provide information in the range of photon energies between 20 and 1300 eV. While the smallest spatially resolved structure, limited by the mirror imperfections, has a size of 0.4 μm, the minimum diameter of selected areas necessary for photoelectron microspectroscopy presently is about 4 μm.
Bio-Optical Imaging: An Advanced Cancer Detection Modality (2014)

Oral cancer is one of the most common malignancies that affect human beings across the world, mainly because of the wide-spread consumption of tobacco and its products. Tobacco and its products have been implicated as predisposing factors in the etiology of oral cancer. The commonest type of oral cancer is oral squamous cell carcinoma. Early detection is very important in the management of oral cancer. However, when the lesion is detected in the oral cavity, it is very much advanced for effective management with minimum morbidity and mortality. It is clearly known that cancer and cancer treatment are always associated with considerable morbidity and mortality, especially because of the late detection. In order to improve the clinical outcome, early detection is very important. Though the oral cavity is easily accessible for direct visual examination, medical practitioners mostly neglect this area in the general examination of the patient. The general dental practitioners also do not give much importance to the oral mucosal changes while carrying out dental treatment. One of the emerging technologies in the early detection of oral cancer is the use of non-invasive in vivo tissue imaging that capture the molecular changes at high-resolution to improve the detection capability of early stage oral cancer.Various newer cancer detection methods currently available are the use of optical imaging such as autofluorescence, fluorescence diagnosis, laser confocal endomicroscopy, surface enhanced Raman spectroscopy, optical coherence tomography and confocal reflectance microscopy in the early oral cancer. Fluorescence diagnosis is emerging as a promising method in the differentiation of cancerous lesions from benign lesions, thus helping in the determination of resolution for the surgical resection of affected area of malignancy very accurately. Laser confocal endomicroscopy offers in vivo cellular imaging of tissue structures from surface to subsurface layers and can be used as a minimally invasive biopsy technique for the early detection of the lesion. Based on the pattern of the spectrum obtained from the saliva, the detection of the lesion is possible in surface enhanced Raman spectroscopy. Optical coherence tomography can be used in the imaging of histopathological features of oral lesions. The above mentioned techniques can help in defining the surgical margin and in the assessment of successful management of the lesion. The review process was carried out by literature search using appropriate key words for articles published between 1995 1nd 2015. Out of 4,46,000 articles obtained, 1480 articles were selected. In the final review process, 179 articles were selected. After subjecting the articles to systematic review, finally 19 articles were selected. The study designs in the articles were interventional experimental studies.
Fibers with Pure SiO2-Core Made by PICVD (1987)

Presentation des resultats concernant les fibres optiques mono- et multimode avec un cœur dope partiellement au SiO 2 ou bien pur, et dont la fabrication fut realisee par une technique de depot chimique phase vapeur plasma
The effect of rat liver carcinomas, growing in the yolk sacs of chick embryos, on the free glutamic acid and glutamine content of the eggs. (1954)

1. Estimations of the free glutamic acid and glutamine concentrations of tumor-bearing and control eggs have shown a definite rise in the free glutamic acid concentration of eggs with tumors, which was apparent in 7–9 days following tumor injection.

2. The rise in free glutamic acid was accompanied by a decrease in glutamine concentration.

3. The free glutamic acid and glutamine of control eggs tended to decrease on incubation.

4. Upon separation of egg and tumor, the free glutamic acid content of the egg was found to be higher than that for control eggs.

5. Tumor tissue was found to have a lower concentration of free glutamic acid than the egg alone.
Is it rational to treat pneumonia with exogenous surfactant? (1993)

<b>1042</b> <h3><b>Objectives:</b></h3> The theranostic twins [<sup>68</sup>Ga]Pentixafor and [<sup>177</sup>Lu]Pentixather for chemokine-directed endoradiotherapy (ERT) were recently developed. We aimed to evaluate feasibility of non-invasive CXCR4 PET/CT imaging using [<sup>68</sup>Ga]Pentixafor in comparison to <sup>68</sup>Ga-DOTA-D-Phe-Tyr3-octreotide ([<sup>68</sup>Ga]DOTATOC) and <sup>18</sup>F-fluorodeoxyglucose ([<sup>18</sup>F]FDG) in gastroenteropancreatic neuroendocrine tumors (GEP-NET). <h3><b>Methods:</b></h3> 12 patients with histologically proven GEP-NET underwent [<sup>68</sup>Ga]DOTATOC, [<sup>18</sup>F]FDG and [<sup>68</sup>Ga]Pentixafor PET/CT. Scans were analyzed on a patient as well as on a lesion basis. <h3><b>Results:</b></h3> On a patient basis, all G1 NET (n=3) were [<sup>68</sup>Ga]DOTATOC-positive and [<sup>68</sup>Ga]Pentixafor-negative; [<sup>18</sup>F]FDG-PET yielded positive results in 2/3 patients. [<sup>68</sup>Ga]DOTATOC was the superior tracer in all cases. All G2 NET (n=4) were both SSTR- and [<sup>18</sup>F]FDG-positive, whereas CXCR4-positivity could only be observed in half of the cases (2/4). [<sup>68</sup>Ga]Pentixafor did not yield additional information in any G1 or G2 NET. Investigating G3 NET, 5/5 subjects were rated [<sup>18</sup>F]FDG positive. CXCR4- and SSTR-PET identified lesions in 4/5 patients each. Of note, the majority of the [<sup>68</sup>Ga]Pentixafor-positive subjects presented with Ki67 of 蠅85%, whereas well-differentiated tumors did not demonstrate relevant CXCR4 receptor expression. <h3><b>Conclusion:</b></h3> Increasing chemokine receptor expression could be non-invasively observed in NET with increasing tumor dedifferentiation. CXCR4-directed ERT can be envisioned for selected patients demonstrating increasing malignancy or [<sup>68</sup>Ga]DOTATOC negative findings. <b>Research Support:</b> n/a
Persistence of Dominant T Cell Clones in Accepted Solid Organ Transplants (2001)

Donor/recipient MHC class II matching is beneficial to the survival of allogeneic kidneys in humans and swine. In the latter, tolerance to class I-disparate grafts can be induced by a short course of immunosuppression, a peripheral mechanism that implicates regulatory T cells. Absence of treatment will lead to prompt rejection. Rejected grafts are infiltrated by dominant alloaggressive T cells, whereas there is still speculation on the specificity and function of T cells invading accepted tissues. To characterize the TCR repertoire of graft-infiltrating T cells (GITC) in accepted kidneys, we have used the RT-PCR-based spectratyping technique to assess the length polymorphism of the porcine TCRbeta chain complementary-determining region 3 (CDR3). Results show that T cells infiltrating accepted kidneys (n = 5) express a restricted polymorphism of the CDR3 length, whereas PBL from the same animal have the polymorphic distribution of CDR3 lengths found in naive animals; that the skewed Vbeta repertoire in accepted grafts involved distinct Vbeta subfamilies in otherwise MHC-identical recipient animals; that GITC clonal dominance is not caused by immunosuppression because a second kidney, accepted without drug treatment, exhibits the same TCR Vbeta CDR3 profiles than those detected in the first graft; and that intragraft clonal dominance intensifies with time, indicating progressive preeminence of nonaggressive GITC clones. Collectively, these data represent the first example, in a preclinical model, of the emergence of nonaggressive intragraft clones, which may be involved in the induction/maintenance of local tolerance to allogeneic tissues.