gebhart/patrepeval huggingface dataset:
Performance of Nylon Based Polymer Foams at Elevated Temperature under Tensile Loading (2011)

One of the primary applications of polymer based cellular solids is to act as an energy absorbing material during impact where compressive strain rates may reach 500-800/s. In reality, impacts occur over a wide range of temperatures and velocities at different angles of incidence. Understanding and modelling the behaviour of the polymer foams requires characterisation of the material response in detail. The stress-strain response that covers both compressive and tensile behaviour for a wide range of strain rates and temperatures are needed to characterize the mechanical performance of polymer foams as polymeric foams are highly nonlinear materials that undergo large deformation in crashworthiness related cases. It is reported in literature that any increase or decrease in temperature over the glass transition region can cause changes by order of magnitude in elastic modulus of polymeric foams. However, creation of cross linking at high temperature can affect the elastic modulus. In this work, the behaviour of two, polyamide-6 (PA-6) based closed cell foams at elevated temperatures were investigated covering the glass transition temperature. This work presents the variation of elastic and tangent modulus of two low densities PA-6 and PA-6/polyolefin (Nylon alloy) based foams. Empirical equations have been proposed to allow the prediction of modulus over a temperature range of 23°C to 120°C for these materials.
Predicting the Degree of Breast Size in Augmentation with Cohesive Gel Implant (2010)

Purpose: Predicting the change in breast size for a specific patient's need is a challenging problem in breast augmentation. We intended to investigate the postaugmentation degree of breast size according to the size of cohesive silicone gel implant. Methods: To predict post-augmentation breast size, we measured 100 patients' pre-and postoperative 3 month's bust circumference. All patients were performed by total subfascial breast augmentation with moderate profile cohesive silicone gel implant through areolar omega (transareolar-perinipple) incision. Results: According to this study, each additional one pair of 100 mL in implant size yielded an approximate 1.5 cm increase in bust circumference (p=0.006). Conclusion: From this result, we conclude that each additional one pair of 100 mL in implant volume yielded about 1.5 cm increase in bust circumference. Although this result may not be applied to every patient, we believe that it yields a practical chart that can help to predict the amount of increase in breast size with the use of cohesive silicone gel implant of a specific size preoperatively.
A new crystal form of Lys48-linked diubiquitin (2010)

Lys48-linked polyubiquitin chains are recognized by the proteasome as a tag for the degradation of the attached substrates. Here, a new crystal form of Lys48-linked diubiquitin (Ub2) was obtained and the crystal structure was refined to 1.6 A resolution. The structure reveals an ordered isopeptide bond in a trans configuration. All three molecules in the asymmetric unit were in the same closed conformation, in which the hydrophobic patches of both the distal and the proximal moieties interact with each other. Despite the different crystallization conditions and different crystal packing, the new crystal structure of Ub2 is similar to the previously published structure of diubiquitin, but differences are observed in the conformation of the flexible isopeptide linkage.
A high performance video server for karaoke systems (1994)

A high performance and low cost video server architecture is proposed for karaoke systems which can store more than 200 Gbytes of video and support up to 30 concurrent users simultaneously. Moreover, a novel caching strategy, called head caching, is proposed which can significantly reduce the initial delay. With this strategy, the initial delay can be dramatically reduced without increasing the cache size. Besides, using head caching scheme, the proposed system can act as a general video server which can support fast-forward, rewind, and dynamic panning controls.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Random Forests Feature Selection with Kernel Partial Least Squares: Detecting Ischemia from MagnetoCardiograms (2006)

Random Forests were introduced by Breiman for feature (variable) selection and improved predictions for decision tree models. The resulting model is often superior to Adaboost and bagging approaches. In this paper the random forest approach is extended for variable selection with other learning models, in this case partial least squares (PLS) and kernel partial least squares (K-PLS) to estimate the importance of vari- ables. This variable selection method is demonstrated on two benchmark datasets (Boston Housing and South African heart disease data). Finally, this methodology is applied to magnetocardiogram data for the detection of ischemic heart disease.
Experimenting with Mobile Context-Aware SIP-based Multimedia Communications (2007)

Advancements in converged networks, technologies, and IP-based multimedia communications are pushing the boundaries of when, where, and how people are able to communicate. As a negative repercussion, the lack of automatic behavior adaptation in wireless communication services is resulting in decreased levels of privacy, safety, security, and overall quality. Such a repercussion can be rectified through the evolution of information technology towards more aware, proactive, reactive, and generally more intelligent mobile devices. The Session Initiation Protocol (SIP) plays a large role in the development and exploration of this idea. We describe a context-aware SIP-based multimedia communication prototype that aims to enable locations to enforce communication policies on mobile devices and allow mobile devices to automatically adapt and negotiate the attributes of a communication session with other communication devices 'on the fly', both pre-session and mid-session. Through experimentation we strive to identify the feasibility of such a system and discuss the practical considerations involved.
Assessment of a COD analytical method based on the photoelectrocatalysis of a TiO2 nanotube array sensor (2012)

This work mainly describes assessment of a photoelectrocatalytic method to determine chemical oxygen demand (COD) in refractory and low-concentration organics using a highly effective TiO2 nanotube array sensor in a thin-cell reactor. Twenty organic compounds, including recalcitrant organics from six categories, were used as model compounds to evaluate the accuracy of the method. The correlation between theoretical oxygen demand (ThCOD) and response COD was studied. The linear regression equation COD = α × ThCOD was obtained, where α is the slope of the regression equation representing the conformity between the actual COD value and the theoretical value. Results of the photoelectrochemical method used in the present paper show excellent conformity between ThOD and response COD for all model compounds, with α and correlation coefficient r values of 0.9903 and 0.9901, respectively. However, results using the standard dichromate method show poor conformity, with α and r values of only 0.8359 and 0.8213, respectively. Hence, we conclude that this photoelectrocatalytic method is superior to the dichromate method for determination of COD in refractory and low-concentration organics. The photoelectrocatalytic method possesses a detection limit of 0.5 mg L−1, while dichromate COD values lower than 20 mg L−1 could not accurately be detected, with the exception of sugars.
Codes for Deletion and Insertion Channels With Segmented Errors (2010)

We consider deletion channels and insertion channels under an additional segmentation assumption: the input consists of disjoint segments of <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">b</i> consecutive bits, with at most one error per segment. Under this assumption, we demonstrate simple and computationally efficient deterministic encoding and decoding schemes that achieve a high provable rate even under worst case errors. We also consider more complex schemes that experimentally achieve higher rates under random error.
Impact of Metastasectomy in the Multimodality Approach for BRAF V600E Metastatic Colorectal Cancer: The Mayo Clinic Experience (2017)

<i>BRAF</i> V600E metastatic colorectal cancer (mCRC) represents an extremely difficult molecular subset of colorectal cancer to treat. To date, this subset remains refractory to standard chemotherapies, prompting extensive clinical investigation regarding novel treatment approaches and targeted modalities. While the use of metastasectomy for expanded <i>RAS</i> wild-type and <i>RAS</i> mutated mCRC has resulted in improved overall survival for select patients, utilization of metastasectomy in patients with <i>BRAF</i> V600E mCRC remains controversial. This article explores the authors' experience with <i>BRAF</i> V600E mCRC to ascertain whether a multidisciplinary approach incorporating metastasectomy for well-selected patients improves overall survival.
SPALL AND DYNAMIC YIELDING OF ALUMINUM AND ALUMINUM ALLOYS AT STRAIN RATES OF 3×10[sup 6] s[sup −1] (2009)

We have explored the role that grain size, impurity particles and alloying in aluminum play in dynamic yielding and spall fracture at tensile strain rates of ∼3×106 s−1. We achieved these strain rates shocking the aluminum specimens via laser ablation using the Z‐Beamlet Laser at Sandia National Laboratories. The high purity aluminum and 1100 series aluminum alloy produced very different spall strengths and nearly the same yield strengths. In contrast, various grain‐sized Al+3 wt. % Mg specimens presented the lowest spall strength, but the greatest dynamic yield strength. Fracture morphology results and particle analysis are presented along with hydrodynamic simulations to put these results in context. Impurity particles appeared to play a vital role in spall fracture at these fast strain rates. Alloying elements such as Mg seem to be the dominant factor in the dynamic yield results.
SHORT NOTICES (1980)

Journal Article SHORT NOTICES Get access H. C. G. MATTHEW H. C. G. MATTHEW Christ ChurchOxford Search for other works by this author on: Oxford Academic Google Scholar The English Historical Review, Volume XCV, Issue CCCLXXV, April 1980, Pages 453-a–453, https://doi.org/10.1093/ehr/XCV.CCCLXXV.453-a Published: 01 April 1980
Burkholderia pseudomallei,B. thailandensis, andB. ambifariaProduce 4-Hydroxy-2-Alkylquinoline Analogues with a Methyl Group at the 3 Position That Is Required for Quorum-Sensing Regulation (2008)

4-Hydroxy-2-alkylquinolines (HAQs), especially 3,4-dihydroxy-2-heptylquinoline (Pseudomonas quinolone signal) and its precursor, 4-hydroxy-2-heptylquinoline, are attracting much attention, mainly because of their role as signaling molecules in Pseudomonas aeruginosa. The pqsABCDE operon is centrally involved in their biosynthesis. The presence of a homologous operon in Burkholderia pseudomallei and B. thailandensis was recently reported. Thus, we have investigated the abilities of 11 Burkholderia species to produce HAQ-like molecules by liquid chromatography/mass spectrometry. We have identified 29 different HAQ derivatives produced by the only three Burkholderia species where a pqsABCDE homologue was found among available sequenced Burkholderia species genomes, including B. ambifaria, a member of the Burkholderia cepacia complex. In contrast with those of P. aeruginosa, Burkholderia HAQs typically bear a methyl group, hence their designation as 4-hydroxy-3-methyl-2-alkylquinolines (HMAQs). We identified three families of HMAQs with a saturated or unsaturated alkyl chain at the 2' position, in contrast with the 1' position of P. aeruginosa, including one with an N-oxide group. Furthermore, the operon in these species contains two more genes downstream of the pqsE homologue, resulting in the hmqABCDEFG operon. While the inactivation of hmqA inhibits the production of HMAQs, the methylation of the quinoline ring requires a putative methyltransferase encoded by hmqG. Interestingly, hmqA or hmqG mutations increase the production of acyl homoserine lactones and, consequently, phenotypes under the control of quorum sensing in B. ambifaria: antifungal activity, siderophore production, and proteolytic activity. These results indicate that only HAQs bearing a methyl group (HMAQs) are involved in quorum-sensing regulation.
FReSCO: Flow Reconstruction and Segmentation for low‐latency Cardiac Output monitoring using deep artifact suppression and segmentation (2022)

The FReSCO framework was successfully demonstrated for real-time monitoring of CO during exercise and could provide a convenient tool for assessment of the hemodynamic response to a range of stressors.
[Hematopoiesis and its regulation. Comparison between erythropoiesis and megakaryocytopoiesis]. (1994)

Hematopoiesis is the cellular system which leads to the continuous production of blood cells. This highly complex cellular system is organized into three main compartments: (i) stem cells which are both pluripotent and theoretically capable of self renewal; (ii) hematopoietic progenitors which are committed to (only) one cell lineage and are able to proliferate along each particular differentiation pathway; (iii) a maturation compartment in which cells become morphologically identifiable since they synthesize lineage specific proteins. The maturation cell compartment represents the majority of marrow cells. At the present time, the regulation of true stem cells remains poorly understood since these cells are difficult to assay in vitro. In contrast, the regulation of each hematopoietic lineages becomes to be well known. These knowledges are mainly due to two reasons: (i) hematopoietic progenitors can be purified and assayed in culture. Their proliferation and differentiation are strictly dependent upon the presence of hematopoietic growth factors; (ii) these different hematopoietic growth factors have been isolated and their cDNA cloned. Erythropoiesis and megakaryocytopoiesis are two branches of hematopoiesis which lead to the production of RBC and platelets, respectively. These two cell lineages have several common features. However, they markedly differ by their regulation since RBC production depends upon one main stimulus (hypoxia) and, therefore, the terminal erythroid differentiation is regulated by a single growth factor. In contrast, regulation of platelet production may depend on several stimuli such as the platelet mass (homeostasis), inflammation, infection and hypoxia. Therefore, several cytokines are involved in the regulation of megakaryocytopoiesis. In addition, the mechanisms of platelet production are highly complex and, in contrast to all the other hematopoietic lineages where the production of mature cells depends on a single parameter (the proliferation during differentiation), three independent parameters modify thrombopoiesis: a) the number of marrow megakaryocytes (MK) (proliferation of the precursor cells). b) the megakaryocyte volume which directly depends on the MK ploidy. During MK differentiation, MK precursors switch from a mitotic process (DNA duplication followed by cytokinesis) to an endomitotic process (DNA duplication without cytokinesis). Endomitosis is a specific process of the megakaryocytic differentiation and differs from all the other cellular models of polyploidization by the existence of a single polyploid and polylobulated nucleus in each cell. This polyploidization induces a major amplification of the platelet production since it is associated with a parallel increase in the cytoplasmic mass.(ABSTRACT TRUNCATED AT 400 WORDS)
AFlexible Framework for Wireless-Based Intelligent Sensor with Reconfigurability , Dynamic adding ,and Web interface (2006)

In this paper, we propose the use of standard, verifiable, common approach Platform called The Flexible Wireless Sensor platform (FWSP) architecture which had following features remote internet enabler, Reconfiguration by parameter which improve precision, Dynamic addition of sensor nodes, and fault tolerance which increase the reliability, stability. The goals of the FWSP architecture are to establish: common controller-hardware(System on module), a common control program, common device drivers, a common managed objects base, and a common appearance to higher-level sensor network management. The proposed platform architecture offers flexibility, easy customization ,and seamless system integration. An Experiment has been established based on wireless communication channel. using wireless Lan ( IEEE802.11) [1] as primary communication channel on our prototype Sensor node , I2C /Smbus [2] device such as temperature sensors, and desire sensor information can be viewed, and Sensor parameter can be adjusted to meet demanding. Measurements about the development time , sensor reconfiguration and confirm the proposed framework feasibility and effectiveness.
Bottom‐up and top‐down effects of browning and warming on shallow lake food webs (2018)

Productivity and trophic structure of aquatic ecosystems result from a complex interplay of bottom-up and top-down forces that operate across benthic and pelagic food web compartments. Projected global changes urge the question how this interplay will be affected by browning (increasing input of terrestrial dissolved organic matter), nutrient enrichment and warming. We explored this with a process-based model of a shallow lake food web consisting of benthic and pelagic components (abiotic resources, primary producers, grazers, carnivores), and compared model expectations with the results of a browning and warming experiment in nutrient-poor ponds harboring a boreal lake community. Under low nutrient conditions, the model makes three major predictions. (a) Browning reduces light and increases nutrient supply; this decreases benthic and increases pelagic production, gradually shifting productivity from the benthic to the pelagic habitat. (b) Because of active habitat choice, fish exert top-down control on grazers and benefit primary producers primarily in the more productive of the two habitats. (c) Warming relaxes top-down control of grazers by fish and decreases primary producer biomass, but effects of warming are generally small compared to effects of browning and nutrient supply. Experimental results were consistent with most model predictions for browning: light penetration, benthic algal production, and zoobenthos biomass decreased, and pelagic nutrients and pelagic algal production increased with browning. Also consistent with expectations, warming had negative effects on benthic and pelagic algal biomass and weak effects on algal production and zoobenthos and zooplankton biomass. Inconsistent with expectations, browning had no effect on zooplankton and warming effects on fish depended on browning. The model is applicable also to nutrient-rich systems, and we propose that it is a useful tool for the exploration of the consequences of different climate change scenarios for productivity and food web dynamics in shallow lakes, the worldwide most common lake type.
Model Compound Studies of Rigid Rod Aromatic Heterocyclic Polymer Systems, the X-Ray Crystal Structure of 2,6-Diphenylbenzo (1,2-d; 5,4-d') Diimidazole Tetrahydrate, C2OH14N4. 4H2O, a Model System for the Study of Polymer-Water Interaction in Polybenzimidazoles. (1983)

Abstract : The crystal and molecular structure of 2,6-diphenylbenzo (1,2-d;5,4-d') diimidazole tetrahydrate, C2OH14N4. 4H2O, is determined by single crystal x-ray diffraction. The benzodiimidazole compound is used as a model compound for poly(p-phenylenebenzodiimidazole), a rigid rod polymer. The crystals grown from ethanol are well formed, translucent, and amber tinted. The space group is P21/c (monoclinic), with cell constants a = 9.008(2)A, b = 24.967(7)Angstroms, c = 9.870(5)Angstroms, Beta = 119.82(3)deg. There are four molecules per unit cell of volume 1925.8(1.3)A3, and the measured density is 1.295 g/cc. 4850 unique reflections out to 56 deg in 2 theta were collected with an automated diffractometer using niobium filtered MoK alpha, radiation. The 2 theta scan technique was employed. Absorption corrections were made and approximately 11,000 reflections were averaged to give a hemisphere of independent observations. The direct method of phase determination was used to solve the structure, and full matrix least squares refinement gave a final Rw factor of 0.084 based on the 3570 reflections with Fobs or = 3sigma(F).
International Conference on Defects in Semiconductors (16th) Held in Bethlehem, Pennsylvania on 22-26 July 1991 (1992)

This report consists of the abstracts for the 16th International Conference on Defects in Semiconductors held at Lehigh University, Bethlehem, PA on July 22-26, 1991. Approximately 250 papers were presented. This meeting addressed the fundamental science of imperfection in semiconductor materials. A wide range of defects of both fundamental and technological interest that include native defects, impurities, dislocations,and defects at surfaces and interfaces in variety of semiconductor materials (Si, Ge, diamond, III-V and II- VI compounds, and related alloys) were discussed. Properties of interest included defect structures (atomic and electronic), defect introduction, reactions, motion, electrical and optical characteristics, etc. The following are a few examples of recent work that is breaking new ground in the field: (1) Oxygen in GaAs has been identify recently and has metastable characteristics. (2) After many years of effort, There has been progress in the doping of II-VI materials.
Effective toughness of periodic heterogeneous materials: the role of rate-dependent fracture energy (2020)

Dynamic fracture of heterogeneous materials is investigated by measuring displacement fields as a rupture propagates through a periodic array of obstacles of controlled toughness. We provide direct evidence of crack speed jumps at the boundary of obstacles. Our experiments reveal that such a discontinuous dynamics emerges from rate-dependent fracture energy, which combined with inertia, allows the crack to cross a toughness discontinuity at constant energy release rate. The rate-dependency, a direct consequence of the out-of-equilibrium nature of fracture phenomenon that is often neglected, plays a central role in setting up homogenized toughness, leading ultimately to increased resistance to failure.
ZUR METHANOLBILDUNG IN VITRO UND VIVO (METHANOLBILDUNG NACH PEKTINGABEN) (1994)

Die Methanolbestimmung im Serum von Alkoholikern dient neben anderen Parametern der Bestimmung des chronischen Alkoholabusus. In dieser Untersuchung wurde die Bildung von Methanol in frisch gepressten Fruchtsaeften untersucht. Dabei konnte festgestellt werden, dass der Methanolgehalt nach dem Pressvorgang in den ersten 1-2 Tagen stark ansteigt und in den folgenden Tagen weiter, jedoch langsamer. Durch die Gabe von Pektin an Versuchspersonen konnten im Serum derart hohe Spiegel an Methanol erreicht werden, dass diese den Grenzwert fuer einen chronischen Alkoholabusus uebertraf. Titel in Englisch: Formation of methanol in vitro and in vivo (formation of methanol after the consumption of pectin).