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Sample records for impacts involving porous

  1. Numerical simulations of impacts involving porous bodies. II. Comparison with laboratory experiments

    NASA Astrophysics Data System (ADS)

    Jutzi, Martin; Michel, Patrick; Hiraoka, Kensuke; Nakamura, Akiko M.; Benz, Willy

    2009-06-01

    In this paper, we compare the outcome of high-velocity impact experiments on porous targets, composed of pumice, with the results of simulations by a 3D SPH hydrocode in which a porosity model has been implemented. The different populations of small bodies of our Solar System are believed to be composed, at least partially, of objects with a high degree of porosity. To describe the fragmentation of such porous objects, a different model is needed than that used for non-porous bodies. In the case of porous bodies, the impact process is not only driven by the presence of cracks which propagate when a stress threshold is reached, it is also influenced by the crushing of pores and compaction. Such processes can greatly affect the whole body's response to an impact. Therefore, another physical model is necessary to improve our understanding of the collisional process involving porous bodies. Such a model has been developed recently and introduced successfully in a 3D SPH hydrocode [Jutzi, M., Benz, W., Michel, P., 2008. Icarus 198, 242-255]. Basic tests have been performed which already showed that it is implemented in a consistent way and that theoretical solutions are well reproduced. However, its full validation requires that it is also capable of reproducing the results of real laboratory impact experiments. Here we present simulations of laboratory experiments on pumice targets for which several of the main material properties have been measured. We show that using the measured material properties and keeping the remaining free parameters fixed, our numerical model is able to reproduce the outcome of these experiments carried out under different impact conditions. This first complete validation of our model, which will be tested for other porous materials in the future, allows us to start addressing problems at larger scale related to small bodies of our Solar System, such as collisions in the Kuiper Belt or the formation of a family by the disruption of a porous

  2. Crosslinking of porous SiOCH films involving Si-O-C bonds: Impact of deposition and curing

    NASA Astrophysics Data System (ADS)

    Gourhant, O.; Gerbaud, G.; Zenasni, A.; Favennec, L.; Gonon, P.; Jousseaume, V.

    2010-12-01

    This paper focuses on the properties of nanoporous SiOCH thin films deposited using a porogen approach by plasma enhanced chemical vapor deposition. The impact of deposition temperature, porogen loading and porogen removal treatment is investigated using Fourier transform infrared spectroscopy, solid-state nuclear magnetic resonance analysis, and electrical and mechanical measurements. This work shows that a higher deposition temperature allows limiting the film shrinkage during the porogen removal treatment and leads to the best compromise in term of electrical and mechanical properties. Beside, the effect of Si-O-C bonds on the enhancement of mechanical properties is promoted since a typical crosslinking mechanism is highlighted in case of ultraviolet curing.

  3. Droplet impact on a porous substrate: a capillary tube model

    NASA Astrophysics Data System (ADS)

    Ding, Hang; Theofanous, Theo

    2009-11-01

    The dynamics of impacting (spreading, penetrating) a droplet on a porous substrate, modeled by an array of capillary tubes, is studied numerically using diffuse interface methods. The absorption rate depends on the diameter ratio of the capillary tube to the droplet, wettability, and liquid properties. The flow dynamics is resolved by solving the Navier-Stokes equations and interface capturing is governed by the Cahn-Hilliard equation. Contact-angle hysteresis is included (Ding&Spelt 2008) and the stress singularity at moving contact lines is relieved using a diffuse interface model (Seppecher 1996; Jaqcmin 2000). The model is validated by studying the evolution of a droplet initially resting on a porous substrate and by comparison to drop-impact experiments involving just one capillary tube (Kogan et al 2008). Comparisons with analytical solutions and results available in the literature (e.g. Hilpert & Ben-David 2009) are presented. Through parametric simulations over relevant ranges of Reynolds and Ohnesorge numbers and contact angles, impact regime maps are derived.

  4. Impact cratering and ejection of material on porous asteroids

    NASA Astrophysics Data System (ADS)

    Housen, K.; Sweet, W.

    2014-07-01

    The manner in which an impact crater and its ejecta blanket are created involves an interplay between gravity and the strength properties of the target material. Gravity is important because the overburden stress at depth in an asteroid determines the material shear strength, which affects the mechanics of crater and ejecta formation. This has important implications when attempting to use lab experiments to simulate large-crater formation on asteroids. The only way to perform small-scale experimental simulations of cratering events on asteroids is to adjust the ambient ''gravity'', g, such that the experiment has the same product of gL as the actual impact event being simulated, where L is an important length scale, such as the projectile or crater size [1]. In this way, the lab crater has the same overburden stress (and shear strength) and ejecta ballistics as a much larger cratering event on an asteroid. Even though asteroids have weak gravity fields, the overburden stress of a multiple-km crater is larger than can be reproduced in the lab at 1 G. Therefore, simulation of large impacts on asteroids requires that the ''gravity'' of the experiment is greater than 1 G. Here we report on a series of impact experiments conducted at elevated gravity on a geotechnical centrifuge. These experimental craters are subscale replicas of the much larger craters they simulate; larger G-levels simulate larger craters. Using the Boeing 600-G centrifuge, we directly simulate the formation of asteroid (g˜0.001 G) craters as large as several tens of km. The target materials are cohesionless with porosity ranging from 35 % to 95 %. Cratering experiments in soils with small or moderate porosity (<30 %) show a decrease in cratering efficiency (crater volume/impactor volume) with increasing size scale or, equivalently, increasing G in a centrifuge experiment. This well-known gravity-regime behavior is due to the fact that the shear strength of the target material goes up due to the

  5. Impact ionization experiments with porous cosmic dust particle analogs

    NASA Astrophysics Data System (ADS)

    Sterken, Veerle; Moragas-Klostermeyer, Georg; Hillier, Jon; Fielding, Lee; Lovett, Joseph; Armes, Steven; Fechler, Nina; Srama, Ralf; Bugiel, Sebastian; Hornung, Klaus

    2016-04-01

    Impact ionization experiments have been performed since more than 40 years for calibration of cosmic dust instruments using a linear Van de Graaff dust accelerator. Such an accelerator can accelerate conductive dust particles of sizes between ca. a few tens of microns, and a micron in size to speeds up to 80 km/s depending on particle size. Many different materials have been used for instrument calibration, from iron in the earlier days to carbon, metal-coated minerals and most recently, minerals coated with conductive polymers. While different materials with different densities have been used for instrument calibration, no comparative analysis has been made yet of compact particles versus porous or fluffy particles of the same material. Porous or fluffy particles are increasingly found to be present in the solar system, e.g. dust from comet 67P Churyumov-Gerasimenko or aggregate grains from the plumes of Enceladus and recently also indications were found for low-density interstellar dust (ISD) from ISD data and trajectory simulations. These recalibrations are thus relevant for estimations of the size distributions of interplanetary and interstellar dust. In this talk we report about the calibrations being performed at the Heidelberg dust accelerator facility for investigating the influence of particle density on the impact ionization charge after impact. We use the Cassini Cosmic Dust Analyser as an impact target. We then explain the experiment set-up, the preparation of the materials and the materials used. We elaborate on the technical challenges, and finally about the current status of the research at this stage. We conclude the talk with the relevance of the study, being the potential influence of such calibrations on the estimates of the mass distributions of interstellar and interplanetary dust.

  6. Impact cratering and catastrophic disruption of porous targets through hypervelocity impact experiments

    NASA Astrophysics Data System (ADS)

    Ferri, F.; Giacomuzzo, C.; Pavarin, D.; Francesconi, A.; Bettella, A.; Flamini, E.; Angrilli, F.

    We present an experimental study of impact cratering and fragmentation processes onto low density materials by means of high velocity impact experiments using a two-stage light-gas gun, the impact facility of CISAS "G. Colombo" of the University of Padova (http://cisas.unipd.it/lgg/lgg.html). The goal of our experiments is to obtain a better comprehension of the impact processes on different materials in order to analyze the evolution of the surface of the solid bodies and the collisional evolution of the minor bodies of the Solar System. The results of this research are also aimed to contribute to the data interpretation of the ground- and space-based observations, in particular in view of space missions such as Smart1, MarsExpress, VenusExpress, BepiColombo, Cassini-Huygens, Rosetta, Dawn. Porosity is an important physical characteristic of the minor bodies, affecting their behaviour during cratering and greatly lengthening the collisional lifetimes of porous asteroids. Porous targets are likely to have average sound velocity lower than those of nonporous targets composed of same material; compaction of initially porous materials can produce rapid attenuation of the shock, thus affecting energy propagation during collisions. Therefore we focus on the study of impact processes on porous targets both by experimental and theoretical approach in order to complement and extend the available data to ranges of velocity and physical conditions not yet explored. In order to simulate porous asteroids, comets, icy satellites, we have manufactured and used targets of different material, e.g. glass ceramic foam, natural pumices, water ice, and different porosity (with density ranging from 0.35 to 1.07 g/cm3 ). Impact test campaign have been performed on the different samples varying the impact kinetic energy (by changing projectile mass and velocity) in order to study the craterization up to catastrophic disruption. The impact and shattering events are observed by high speed

  7. Experimental study on impact disruption of porous asteroids: Effects of oblique impact and multiple collisions on impact strength

    NASA Astrophysics Data System (ADS)

    Yasui, Minami; Takano, Shota; Matsue, Kazuma; Arakawa, Masahiko

    2015-08-01

    Most of asteroids would have pores and a plenty of pre-cracks in their interiors, and the pre-cracks could be formed by multiple impacts at various impact angles. Porosity and pre-cracks are important physical properties controlling the impact strength. Okamoto and Arakawa (2009) did impact experiments of porous gypsum spheres to obtain the impact strength of porous asteroids, but they carried out only single impact experiments on the same target at head-on. In this study, we conducted oblique impact and multiple impacts on porous gypsum and examined the effects of impact angle and pre-cracks on the impact strength.We carried out impact experiments by using the one-stage He gas gun and the two-stage H2 gas gun at Kobe University. The impact velocities were <200 m/s (low-vi) and >3 km/s (high-vi). Targets were porous gypsum spheres with the porosity of 55% and the diameters of 7 or 12 cm. The projectiles were a porous gypsum sphere with the diameter of 2.5 cm at low-vi or a polycarbonate sphere with the diameter of 4.7 cm at high-vi. The impact angle changed from 15° to 90°, and the projectile was impacted on the same target for 2-15 times. The impact phenomena were observed by a high-speed digital video camera to measure the fragment velocities.The oblique impact experiments showed that the impact strength did not depend on the impact angle θ between 45° and 90°, and obtained to be ~2000 J/kg, while it drastically changed at the θ from 15° to 30°. We reanalyzed our results by using the effective energy density defined as Qsin2θ, where Q is the energy density, and found that most of the results were consistent with the results of head-on impacts. The multiple impacts showed that the impact strength of pre-impacted targets was larger than that of intact targets in the case of low-vi. This might be caused by the compaction of the target surface. In the case of high-vi, the impact strength of pre-impacted targets was smaller than that of intact targets. This

  8. [The impact of socially involved films].

    PubMed

    Mimoun, M

    1979-01-01

    During the past few years studies on linguistics and particularly on semiology have considerably renewed the approach and investigation methods in artistic expression. Ideology has several languages and expression systems (photography, painting, music, speech, architecture and so on). The film does not only carry an ideological content: besides the signification systems and the signs taken from other means of films. To consider only films which have the ostensible objective to urge the public to a political action as socially involved is wrong: any movie is socially involved. One must appreciate correctly and politically the place, role and level at which it intervenes in the framework of the ideological fight. Audiovisual alphabetization is essential for the progress of new ideas in the field of picture and sound. In the Third World, when they do exist, cinematographies rarely have the political power to consider such an action. Ideological impact depends mostly on the social, political and cultural environment. A movie is 1st questioned from the standpoint of the historical place and of the problems of the public. The example of Algerian cinematography as a socially involved one is given. At its origin, film-making in this country was working at informing the outside world of the meaning of the people's fight. Its goal was to capture the political and social reality in order to change it. Therefore the social involvement role of Algerian film-producing is tightly connected to the revolutionary process in which the whole country is engaged. Algerian film-producing is often understood as a propaganda cinematography. The stagnation or progress of a cinematography cannot be measured in relation to the universal mythical culture, but in relation to the social and cultural reality of the country where it originates. The present deepening of the reflection on film and ideology is a result of a recent accentuation of the ideologic fight. PMID:12261392

  9. Impact of saturation on dispersion and mixing in porous media

    NASA Astrophysics Data System (ADS)

    Jimenez-Martinez, J.; De Anna, P.; Turuban, R.; Tabuteau, H.; Le Borgne, T.; Meheust, Y.

    2014-12-01

    In partially saturated porous media, the spatial distribution of wetting (e.g., water) and non-wetting (e.g., air) phases causes the liquid flow to be focused onto narrow and complex flow paths, leaving large volumes of wetting fluid trapped in between non-wetting phase clusters. The impact of the resulting highly heterogeneous wetting fluid velocity distributions on the dispersion and mixing of a solute in this wetting phase is critical for predicting reactive transport processes that take place in partially saturated porous media. We study the dependence of dispersion and mixing on the saturation degree using a 2D experimental setup consisting of cylindrical grains built using soft lithography. The joint injection of the two phases (wetting and non-wetting) provides a controlled homogeneous saturation in the medium. The simultaneous measurement of the flow velocity field, the spatial distribution of the wetting and non-wetting phases, and the tracer concentration field are used to investigate the relationship between the flow field complexity induced by desaturation and dispersion/mixing properties. We analyze the temporal behavior of the mean concentration gradient and the scalar dissipation rate, which quantify the temporal variation of the concentration variability and the potential for mixing-controlled chemical reactivity. The formation of preferential flowpaths in unsaturated flows is found to have an important impact on the mixing behavior. While the mean concentration gradient decays in time for saturated flow following the classical diffusive smoothing of concentration gradients, the creation of highly channelized finger structures in unsaturated flows induces persistently large concentration gradients which decay slowly in time. The highly resolved concentration field images show that this effect is due to i) a drastic increase of the surface available for creating concentration gradients across the finger boundaries, ii) the existence of dead-ends with

  10. Impact of hygrometry changes on creep behaviour of a porous rock and associated acoustic emission.

    NASA Astrophysics Data System (ADS)

    Grgic, D.; Amitrano, D.

    2009-04-01

    Static fatigue of a polycrystalline porous rock (iron ore) was studied by performing multi step uniaxial creep tests under partially saturated conditions, and the impact of water saturation was analyzed. The samples were, in a first step set to a partial water saturation of 90%. In a second step, the samples were saturated completely in order to simulate the impact of flooding corresponding to the conditions of abandoned iron mines. We recorded axial and transversal strain and acoustic emission (EA). The experimental results show that the water saturation induces a strong increase in AE activity and dilatant inelastic volumetric strain. This is associated with a notable decrease in Young's modulus and in the b-value of the Gutenberg-Richter law (i.e., the relative number of large-amplitude events increases) as the rock approaches failure, indicating that microfracturing plays an important role in the creep process. Water saturation accelerates static fatigue through hydro-mechanical coupling and subcritical stress corrosion cracking. The chemical reactions involved in the corrosion of iron ore and leading to a decrease in its intrinsic mechanical properties are described. These reactions play a major role in the static fatigue of iron ore, which on a large scale is probably the main mechanism explaining certain collapses in underground iron mines. It is also shown that creep straining of iron ore is partially reversible after stress removal, indicating that it results also from time-dependent viscoplastic mechanism (i.e., dislocation creep).

  11. Using bacterial bioluminescence to evaluate the impact of biofilm on porous media hydraulic properties.

    PubMed

    Bozorg, Ali; Gates, Ian D; Sen, Arindom

    2015-02-01

    Biofilm formation in natural and engineered porous systems can significantly impact hydrodynamics by reducing porosity and permeability. To better understand and characterize how biofilms influence hydrodynamic properties in porous systems, the genetically engineered bioluminescent bacterial strain Pseudomonas fluorescens HK44 was used to quantify microbial population characteristics and biofilm properties in a translucent porous medium. Power law relationships were found to exist between bacterial bioluminescence and cell density, fraction of void space occupied by biofilm (i.e. biofilm saturation), and hydraulic conductivity. The simultaneous evaluation of biofilm saturation and porous medium hydraulic conductivity in real time using a non-destructive approach enabled the construction of relative hydraulic conductivity curves. Such information can facilitate simulation studies related to biological activity in porous structures, and support the development of new models to describe the dynamic behavior of biofilm and fluid flow in porous media. The bioluminescence based approach described here will allow for improved understanding and control of industrially relevant processes such as biofiltration and bioremediation. PMID:25479429

  12. Protective Effectiveness of Porous Shields Under the Influence of High-Speed Impact Loading

    NASA Astrophysics Data System (ADS)

    Kramshonkov, E. N.; Krainov, A. V.; Shorohov, P. V.

    2016-02-01

    The results of numerical simulations of a compact steel impactor with the aluminum porous shields under high-speed shock loading are presented. The porosity of barrier varies in wide range provided that its mass stays the same, but the impactor has always equal (identical) mass. Here presented the final assessment of the barrier perforation speed depending on its porosity and initial shock speed. The range of initial impact speed varies from 1 to 10 km/s. Physical phenomena such as: destruction, melting, vaporization of a interacting objects are taken into account. The analysis of a shield porosity estimation disclosed that the protection effectiveness of porous shield reveals at the initial impact speed grater then 1.5 km/s, and it increases when initial impact speed growth.

  13. High Velocity Impact Interaction of Metal Particles with Porous Heterogeneous Materials with an Inorganic Matrix

    NASA Astrophysics Data System (ADS)

    Glazunov, A. A.; Ishchenko, A. N.; Afanasyeva, S. A.; Belov, N. N.; Burkin, V. V.; Rogaev, K. S.; Tabachenko, A. N.; Khabibulin, M. V.; Yugov, N. T.

    2016-03-01

    A computational-experimental investigation of stress-strain state and fracture of a porous heterogeneous material with an inorganic matrix, used as a thermal barrier coating of flying vehicles, under conditions of a high-velocity impact by a spherical steel projectile imitating a meteorite particle is discussed. Ballistic tests are performed at the velocities about 2.5 km/s. Numerical modeling of the high-velocity impact is described within the framework of a porous elastoplastic model including fracture and different phase states of the materials. The calculations are performed using the Euler and Lagrange numerical techniques for the velocities up to 10 km/s in a complete-space problem statement.

  14. Antipodal fragment velocities for porous and weak targets at catastrophic impacts

    NASA Technical Reports Server (NTRS)

    Yanagisawa, M.; Itoi, T.

    1993-01-01

    Mortar, porous alumina, and sand targets, which were spherical in shape and from 11 to 15 cm in diameter, were impacted normally by plastic (polycarbonate) projectiles of nearly 1 g in mass at velocities about 6 km/s. Fragment velocity at the antipole of impact site (antipodal velocity, V(sub a)), for each experiment, was obtained from two Flash X-ray images recorded prior to and at predetermined delayed time after impact event. It has been revealed that the velocities for the same E/M(sub t) (impact energy divided by target mass) depend strongly on target material, and differ about an order of magnitude between the sand and basalt.

  15. Impact experiments of exotic dust grain capture by highly porous primitive bodies

    NASA Astrophysics Data System (ADS)

    Okamoto, Takaya; Nakamura, Akiko M.; Hasegawa, Sunao; Kurosawa, Kosuke; Ikezaki, Katsutoshi; Tsuchiyama, Akira

    2013-05-01

    Small primitive bodies were presumably highly porous when they formed and some still have low densities that are indicative of a high pore content. Therefore, after their formation, interplanetary dust impacting on their surface may have been captured because of their porous structure. The mechanism of dust penetration is thus of importance to understand the evolution of small bodies and the origin of their internal dust particles. Impact experiments of sintered glass-bead targets characterized by 80%, 87%, and 94% bulk porosity were conducted using metal and basalt projectiles at impact velocities ranging from 1.6 to 7.2 km s-1. Track morphology and penetration processes were analyzed using both X-ray tomography and a flash X-ray system. Two types of track were observed, as previously also found in the Stardust aerogel: a thin and long track (carrot-shaped track), and a "bulb" with tails (bulb-shaped track). The track shape changed with initial dynamic pressure. We found that the transition between "carrot" and "bulb" occurred at a pressure of roughly 20 times the projectile's tensile strength. The deceleration process of projectiles without severe deformation and fragmentation was reproduced by a drag equation composed of an inertia drag that was proportional to the square of the projectile's velocity and a constant drag proportional to the target's compressive strength. We applied this deceleration equation to silicate dust penetrating into hypothetical porous icy bodies which were homogeneous on much smaller scales than the impacting dust particles. The penetration depth was approximately 100 times the projectile diameter for the bodies with 90% porosity.

  16. Propagation of impact-induced shock waves in porous sandstone using mesoscale modeling

    NASA Astrophysics Data System (ADS)

    GÜLdemeister, Nicole; WÜNnemann, Kai; Durr, Nathanael; Hiermaier, Stefan

    2013-01-01

    Abstract-Generation and propagation of shock waves by meteorite <span class="hlt">impact</span> is significantly affected by material properties such as porosity, water content, and strength. The objective of this work was to quantify processes related to the shock-induced compaction of pore space by numerical modeling, and compare the results with data obtained in the framework of the Multidisciplinary Experimental and Modeling <span class="hlt">Impact</span> Research Network (MEMIN) <span class="hlt">impact</span> experiments. We use mesoscale models resolving the collapse of individual pores to validate macroscopic (homogenized) approaches describing the bulk behavior of <span class="hlt">porous</span> and water-saturated materials in large-scale models of crater formation, and to quantify localized shock amplification as a result of pore space crushing. We carried out a suite of numerical models of planar shock wave propagation through a well-defined area (the "sample") of <span class="hlt">porous</span> and/or water-saturated material. The <span class="hlt">porous</span> sample is either represented by a homogeneous unit where porosity is treated as a state variable (macroscale model) and water content by an equation of state for mixed material (ANEOS) or by a defined number of individually resolved pores (mesoscale model). We varied porosity and water content and measured thermodynamic parameters such as shock wave velocity and particle velocity on meso- and macroscales in separate simulations. The mesoscale models provide additional data on the heterogeneous distribution of peak shock pressures as a consequence of the complex superposition of reflecting rarefaction waves and shock waves originating from the crushing of pores. We quantify the bulk effect of porosity, the reduction in shock pressure, in terms of Hugoniot data as a function of porosity, water content, and strength of a quartzite matrix. We find a good agreement between meso-, macroscale models and Hugoniot data from shock experiments. We also propose a combination of a porosity compaction model (ɛ-α model) that was</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015WRR....51.1315E','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015WRR....51.1315E"><span id="translatedtitle"><span class="hlt">Impact</span> of space-time mesh adaptation on solute transport modeling in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Esfandiar, Bahman; Porta, Giovanni; Perotto, Simona; Guadagnini, Alberto</p> <p>2015-02-01</p> <p>We implement a space-time grid adaptation procedure to efficiently improve the accuracy of numerical simulations of solute transport in <span class="hlt">porous</span> media in the context of model parameter estimation. We focus on the Advection Dispersion Equation (ADE) for the interpretation of nonreactive transport experiments in laboratory-scale heterogeneous <span class="hlt">porous</span> media. When compared to a numerical approximation based on a fixed space-time discretization, our approach is grounded on a joint automatic selection of the spatial grid and the time step to capture the main (space-time) system dynamics. Spatial mesh adaptation is driven by an anisotropic recovery-based error estimator which enables us to properly select the size, shape, and orientation of the mesh elements. Adaptation of the time step is performed through an ad hoc local reconstruction of the temporal derivative of the solution via a recovery-based approach. The <span class="hlt">impact</span> of the proposed adaptation strategy on the ability to provide reliable estimates of the key parameters of an ADE model is assessed on the basis of experimental solute breakthrough data measured following tracer injection in a nonuniform <span class="hlt">porous</span> system. Model calibration is performed in a Maximum Likelihood (ML) framework upon relying on the representation of the ADE solution through a generalized Polynomial Chaos Expansion (gPCE). Our results show that the proposed anisotropic space-time grid adaptation leads to ML parameter estimates and to model results of markedly improved quality when compared to classical inversion approaches based on a uniform space-time discretization.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26275609','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26275609"><span id="translatedtitle">Psychosocial <span class="hlt">impact</span> of <span class="hlt">involvement</span> in the Special Olympics.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Crawford, Clare; Burns, Jan; Fernie, Bruce A</p> <p>2015-01-01</p> <p>Existing evidence suggests that people with intellectual disabilities are vulnerable to low self-esteem leading to additional psychosocial issues such as social exclusion and stress. Previous research into the <span class="hlt">involvement</span> of Special Olympics (SO) of people with intellectual disabilities has indicted positive psychosocial outcomes. <span class="hlt">Involvement</span> in sport is known generally to have psychological and social benefits. This study aimed to compare the psychosocial <span class="hlt">impact</span> of <span class="hlt">involvement</span> in sport through the SO to no or limited sports <span class="hlt">involvement</span>, for a sample of people with intellectual disabilities. A cross sectional design was employed comparing three groups, SO, Mencap Sports, and Mencap No Sports on the variables: Self-esteem, quality of life, stress levels and social networks. One hundred and one participants were recruited either through the SO or Mencap. Data were collected through the completion of validated questionnaires by one to one interviews with the participants. Analysis revealed that self-esteem, quality of life, and stress were all significantly associated with SO <span class="hlt">involvement</span>. Logistic regression analysis was used to explore whether scores on these variables were able to predict group membership. Self-esteem was found to be a significant predictor of group membership, those in the SO having the highest self-esteem. The findings provide further evidence of a positive association between sport <span class="hlt">involvement</span> and increased psychological wellbeing, especially for those <span class="hlt">involved</span> in the SO. The implications of these findings for practice and future research into the relationship between sport and psychological wellbeing within the learning disabled population are considered. PMID:26275609</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2014AGUFM.H13A1061H&link_type=ABSTRACT','NASAADS'); return false;" href="http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2014AGUFM.H13A1061H&link_type=ABSTRACT"><span id="translatedtitle">The Efficiency Analysis of Low <span class="hlt">Impact</span> Development Applied in Taiwan: A Case Study of <span class="hlt">Porous</span> Pavement</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Huang, Y. H.; Liu, H. J.; Hsu, N. S.; Chang, F. M.</p> <p>2014-12-01</p> <p>Low <span class="hlt">Impact</span> Development (LID) has been developed since the end of 1990s. Lots of successful experience based on this new technology have been made. Taiwan Executive Yuan is conducting a six-year (2014~2019) program "Integrated River Basin Management Plan" applying LID to build sponge cities. Construction and Planning Agency, Ministry of the Interior is editing the manual of LID technology for Taiwan. However, since the hydrological environments, physiographic conditions, climates, the strength and frequency of disasters in Taiwan are different from that in America, this study takes the first laboratory experiment and model simulation to evaluate the efficiency of application of LID in Taiwan.LID Facilities includes <span class="hlt">porous</span> pavement, rain garden, green roof, tree box filter facilities and so on, and in this study, <span class="hlt">porous</span> pavement is taken as an example for discussion. In the part of laboratory experiments, the sand box experiments is designed to operate with the specified rainfall return period calculated by Horton formula and rainfall characteristics of Taipei. Then the outflow hydrograph in each designed rainfall of specified return period can be evaluated. As for model simulation, this study constructs LID simulation elements by SWMM model and tests the suitability for simulation of the outflow hydrograph obtained from experiments, and definitely quantifies the efficiency of water retention and flood reduction of <span class="hlt">porous</span> pavement. The results fits well with the experimental observation data with less than 10% error of pick flow. It suggests that, with LID simulation elements constructed in this study, the efficiency of LID in actual on-site application can be evaluated.The results shows that <span class="hlt">porous</span> pavement is able to delay arrival time of pick about 5% ~10% and reduce the pick flow about 5%~20%, and hold the ability of near 3~5% water retention. It proves that application of LID can retain water and reduce flood in Taiwan.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/27142952','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/27142952"><span id="translatedtitle">Assessing the organizational <span class="hlt">impact</span> of patient <span class="hlt">involvement</span>: a first STEPP.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Kreindler, Sara A; Struthers, Ashley</p> <p>2016-05-01</p> <p>Purpose - Patient <span class="hlt">involvement</span> in the design and improvement of health services is increasingly recognized as an essential part of patient-centred care. Yet little research, and no measurement tool, has addressed the organizational <span class="hlt">impacts</span> of such <span class="hlt">involvement</span>. The paper aims to discuss these issues. Design/methodology/approach - The authors developed and piloted the scoresheet for tangible effects of patient participation (STEPP) to measure the instrumental use of patient input. Its items assess the magnitude of each recommendation or issue brought forward by patients, the extent of the organization's response, and the apparent degree of patient influence on this response. In collaboration with teams (staff) from five <span class="hlt">involvement</span> initiatives, the authors collected interview and documentary data and scored the STEPP, first independently then jointly. Feedback meetings and a "challenges log" supported ongoing improvement. Findings - Although researchers' and teams' initial scores often diverged, the authors quickly reached consensus as new information was shared. Composite scores appeared to credibly reflect the degree of organizational <span class="hlt">impact</span>, and were associated with salient features of the <span class="hlt">involvement</span> initiatives. Teams described the STEPP as easy to use and useful for monitoring and accountability purposes. The tool seemed most suitable for initiatives in which patients generated novel, concrete recommendations; less so for broad public consultations of which instrumental use was not a primary goal. Originality/value - The STEPP is a promising, first-in-class tool with potential usefulness to both researchers and practitioners. With further research to better establish its reliability and validity, it could make a valuable contribution to full mixed-methods evaluation of patient <span class="hlt">involvement</span>. PMID:27142952</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li class="active"><span>1</span></li> <li><a href="#" onclick='return showDiv("page_2");'>2</a></li> <li><a href="#" onclick='return showDiv("page_3");'>3</a></li> <li><a href="#" onclick='return showDiv("page_4");'>4</a></li> <li><a href="#" onclick='return showDiv("page_5");'>5</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_1 --> <div id="page_2" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_1");'>1</a></li> <li class="active"><span>2</span></li> <li><a href="#" onclick='return showDiv("page_3");'>3</a></li> <li><a href="#" onclick='return showDiv("page_4");'>4</a></li> <li><a href="#" onclick='return showDiv("page_5");'>5</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="21"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2013M%26PS...48....8P','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2013M%26PS...48....8P"><span id="translatedtitle">The MEMIN research unit: Scaling <span class="hlt">impact</span> cratering experiments in <span class="hlt">porous</span> sandstones</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Poelchau, Michael H.; Kenkmann, Thomas; Thoma, Klaus; Hoerth, Tobias; Dufresne, Anja; SchńFer, Frank</p> <p>2013-01-01</p> <p>The MEMIN research unit (Multidisciplinary Experimental and Modeling <span class="hlt">Impact</span> research Network) is focused on analyzing experimental <span class="hlt">impact</span> craters and experimental cratering processes in geological materials. MEMIN is interested in understanding how porosity and pore space saturation influence the cratering process. Here, we present results of a series of <span class="hlt">impact</span> experiments into <span class="hlt">porous</span> wet and dry sandstone targets. Steel, iron meteorite, and aluminum projectiles ranging in size from 2.5 to 12 mm were accelerated to velocities of 2.5-7.8 km s-1, yielding craters with diameters between 3.9 and 40 cm. Results show that the target's porosity reduces crater volumes and cratering efficiency relative to nonporous rocks. Saturation of pore space with water to 50% and 90% increasingly counteracts the effects of porosity, leading to larger but flatter craters. Spallation becomes more dominant in larger-scale experiments and leads to an increase in cratering efficiency with increasing projectile size for constant <span class="hlt">impact</span> velocities. The volume of spalled material is estimated using parabolic fits to the crater morphology, yielding approximations of the transient crater volume. For <span class="hlt">impacts</span> at the same velocity these transient craters show a constant cratering efficiency that is not affected by projectile size.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015WRR....51.2634N','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015WRR....51.2634N"><span id="translatedtitle"><span class="hlt">Impact</span> of viscous fingering and permeability heterogeneity on fluid mixing in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Nicolaides, Christos; Jha, Birendra; Cueto-Felgueroso, Luis; Juanes, Ruben</p> <p>2015-04-01</p> <p>Fluid mixing plays a fundamental role in many natural and engineered processes, including groundwater flows in <span class="hlt">porous</span> media, enhanced oil recovery, and microfluidic lab-on-a-chip systems. Recent developments have explored the effect of viscosity contrast on mixing, suggesting that the unstable displacement of fluids with different viscosities, or viscous fingering, provides a powerful mechanism to increase fluid-fluid interfacial area and enhance mixing. However, existing studies have not incorporated the effect of medium heterogeneity on the mixing rate. Here, we characterize the evolution of mixing between two fluids of different viscosity in heterogeneous <span class="hlt">porous</span> media. We focus on a practical scenario of divergent-convergent flow in a quarter five spot geometry prototypical of well-driven groundwater flows. We study by means of numerical simulations the <span class="hlt">impact</span> of permeability heterogeneity and viscosity contrast on the breakthrough curves and mixing efficiency, and we rationalize the nontrivial mixing behavior that emerges from the competition between the creation of fluid-fluid interfacial area and channeling.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2001AGUFM.H51A0304M','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2001AGUFM.H51A0304M"><span id="translatedtitle"><span class="hlt">Impact</span> of Moisture Content and Grain Size on Hydrocarbon Diffusion in <span class="hlt">Porous</span> Media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>McLain, A. A.; Ho, C. K.</p> <p>2001-12-01</p> <p>Diffusion of hydrocarbon vapors in <span class="hlt">porous</span> media can play an important role in our ability to characterize subsurface contaminants such as trichloroethylene (TCE). For example, traditional monitoring methods often rely on direct sampling of contaminated soils or vapor. These samples may be influenced by the diffusion of vapors away from the contaminant source term, such as non-aqueous-phase TCE liquid. In addition, diffusion of hydrocarbon vapors can also <span class="hlt">impact</span> the migration and dispersion of the contaminant in the subsurface. Therefore, understanding the diffusion rates and vapor transport processes of hydrocarbons in variably-saturated, heterogeneous <span class="hlt">porous</span> media will assist in the characterization and detection of these subsurface contaminants. The purpose of this study was to investigate the <span class="hlt">impact</span> of soil heterogeneity and water-moisture content on the diffusion processes for TCE. A one-dimensional column experiment was used to monitor the rates of vapor diffusion through sand. Experiments were performed with different average water-moisture contents and different grain sizes. On one end of the column, a reservoir cap is used to encase the TCE, providing a constant vapor boundary condition while sealing the end. The other end of the column contains a novel microchemical sensor. The sensor employs a polymer-absorption resistor (chemiresistor) that reversibly swells and increases in resistance when exposed to hydrocarbons. Once calibrated, the chemiresistors can be used to passively monitor vapor concentrations. This unique method allows the detection of in-situ vapor concentrations without disturbing the local environment. Results are presented in the form of vapor-concentration breakthrough curves as detected by the sensor. The shape of the breakthrough curve is dependent on several key parameters, including the length of the column and parameters (e.g., water-moisture content and grain-size) that affect the effective diffusion coefficient of TCE in air</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/23367938','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/23367938"><span id="translatedtitle"><span class="hlt">Impact</span> on <span class="hlt">porous</span> targets: penetration, crater formation, target compaction, and ejection.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Ringl, Christian; Bringa, Eduardo M; Urbassek, Herbert M</p> <p>2012-12-01</p> <p>Using a granular-mechanics code, we study the <span class="hlt">impact</span> of a sphere into a <span class="hlt">porous</span> adhesive granular target, consisting of monodisperse silica grains. The model includes elastic repulsive, adhesive, and dissipative forces, as well as sliding, rolling, and twisting friction. <span class="hlt">Impact</span> velocities of up to 30 m/s and target filling factors (densities) between 19% and 35% have been systematically studied. We find that the projectile is stopped by an effective drag force which is proportional to the square of its velocity. Target adhesion influences projectile stopping only below a critical velocity, which increases with adhesion. The penetration depth depends approximately logarithmically on the <span class="hlt">impact</span> velocity and is inversely proportional to the target density. The excavated crater is of conical form and is surrounded by a compaction zone whose width increases but whose maximum value decreases with increasing target density. Grain ejection increases in proportion with impactor velocity. Grains are ejected which have originally been buried to a depth of 8R(grain) below the surface; the angular distribution favors oblique ejection with a maximum around 45°. The velocity distribution of ejected grains features a broad low-velocity maximum around 0.5-1 m/s but exhibits a high-velocity tail up to ~15% of the projectile <span class="hlt">impact</span> velocity. PMID:23367938</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015WRR....51.8973M','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015WRR....51.8973M"><span id="translatedtitle">The <span class="hlt">impact</span> of immobile zones on the transport and retention of nanoparticles in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Molnar, Ian L.; Gerhard, Jason I.; Willson, Clinton S.; O'Carroll, Denis M.</p> <p>2015-11-01</p> <p>Nanoparticle transport and retention within <span class="hlt">porous</span> media is treated by conceptualizing the <span class="hlt">porous</span> media as a series of independent collectors (e.g., Colloid Filtration Theory). This conceptualization assumes that flow phenomena near grain-grain contacts, such as immobile zones (areas of low flow), exert a negligible influence on nanoparticle transport and assumes that retention and release of particles depends only on surface chemistry. This study investigated the <span class="hlt">impact</span> of immobile zones on nanoparticle transport and retention by employing synchrotron X-ray computed microtomography (SXCMT) to examine pore-scale silver nanoparticle distributions during transport through three sand columns: uniform iron oxide, uniform quartz, and well-graded quartz. Extended tailing was observed during the elution phase of all experiments suggesting that hydraulic retention in immobile zones, not detachment from grains, was the source of tailing. A numerical simulation of fluid flow through an SXCMT data set predicted the presence of immobile zones near grain-grain contacts. SXCMT-determined silver nanoparticle concentrations observed that significantly lower nanoparticle concentrations existed near grain-grain contacts throughout the duration of all experiments. In addition, the SXCMT-determined pore-scale concentration gradients were found to be independent of surface chemistry and grain size distribution, suggesting that immobile zones limit the diffusive transport of nanoparticles toward the collectors. These results suggest that the well-known overprediction of nanoparticle retention by traditional CFT may be due to ignoring the influences of grain-grain contacts and immobile zones. As such, accurate prediction of nanoparticle transport requires consideration of immobile zones and their influence on both hydraulic and surface retention.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/894846','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/894846"><span id="translatedtitle"><span class="hlt">Impact</span> of microbial growth on water flow and solute transport in unsaturated <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Yarwood, R. R.; Rockhold, M. L.; Niemet, M. R.; Selker, John S.; Bottomley, Peter J.</p> <p>2006-10-05</p> <p>A novel analytical method was developed that permitted real-time, noninvasive measurements of microbial growth and associated changes in hydrodynamic properties in <span class="hlt">porous</span> media under unsaturated flowing conditions. Salicylate-induced, lux gene-based bioluminescence was used to quantify the temporal and spatial development of colonization over a seven day time course. Water contents were determined daily by measuring light transmission through the system. Hydraulic flow paths were determined daily by pulsing a bromophenol blue dye solution through the colonized region of the sand. Bacterial growth and accumulation had a significant <span class="hlt">impact</span> on the hydraulic properties of the <span class="hlt">porous</span> media. Microbial colonization caused localized drying within the colonized zone, with decreases in saturation approaching 50% of antecedent values, and a 25% lowering of the capillary fringe height. Flow was retarded within the colonized zone and diverted around it. The apparent solute velocity through the colonized region was reduced from 0.41 cm min 1 (R2 = 0.99) to 0.25 cm min 1 (R2 = 0.99) by the sixth day of the experiment, associated with maximum population densities that would occupy about 7% of the available pore space within the colonized region. Changes in the extent of colonization occurred over the course of the experiment, including upward migration against flow. The distribution of cells was not determined by water flow alone, but rather by a dynamic interaction between water flow and microbial growth. This experimental system provides rich data sets for the testing of conceptualizations expressed through numerical modeling.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/921683','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/921683"><span id="translatedtitle"><span class="hlt">IMPACT</span> OF COMPOSITION AND HEAT TREATMENT ON PORE SIZE IN <span class="hlt">POROUS</span> WALLED HOLLOW GLASS MICROSPHERES</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Raszewski, F; Erich Hansen, E; Ray Schumacher, R; David Peeler, D</p> <p>2007-12-04</p> <p>The Savannah River National Laboratory (SRNL) developed a new geometric form: hollow glass microspheres (HGMs), with unique <span class="hlt">porous</span> walls. The new geometric form combines the existing technology of HGMs with basic glass science knowledge in the realm of glass-in-glass phase separation. Conceptually, the development of a HGM with <span class="hlt">porous</span> walls (referred to as a PWHGM) provides a unique system in which various media or filling agents can be incorporated into the PWHGM (via transport through the <span class="hlt">porous</span> walls) and ultimately has the capacity to serve as a functional delivery system in various industrial applications. Applications of these types of systems could range from hydrogen storage, molecular sieves, drug and bioactive delivery systems, to environmental, chemical and biological indicators, relevant to Energy, Environmental Processing and Homeland Security fields. As a specific example, previous studies at SRNL have introduced materials capable of hydrogen storage (as well as other materials) into the interior of the PWHGMs. The goal of this project was to determine if the microstructure (i.e., pore size and pore size distribution) of a PWHGM could be altered or tailored by varying composition and/or heat treatment (time and/or temperature) conditions. The ability to tailor the microstructure through composition or heat treatments could provide the opportunity to design the PWHGM system to accommodate different additives or fill agents. To meet this objective, HGMs of various alkali borosilicate compositions were fabricated using a flame forming apparatus installed at the Aiken County Technical Laboratory (ACTL). HGMs were treated under various heat treatment conditions to induce and/or enhance glass in glass phase separation. Heat treatment temperatures ranged from 580 C to 620 C, while heat treatment times were either 8 or 24 hours. Of the two primary variables assessed in this study, heat treatment temperature was determined to be most effective in changing the</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=parental+AND+involvement+AND+classroom&pg=3&id=ED552172','ERIC'); return false;" href="http://eric.ed.gov/?q=parental+AND+involvement+AND+classroom&pg=3&id=ED552172"><span id="translatedtitle">The <span class="hlt">Impact</span> of Parental <span class="hlt">Involvement</span> on Kindergarten Student Writing Development</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Anderson, Somer Knight</p> <p>2013-01-01</p> <p>Although researchers have studied parental <span class="hlt">involvement</span> and reading achievement, few have examined the effects of parental <span class="hlt">involvement</span> on young children's developmental writing. The purpose of this study was to explore the relationship between parent <span class="hlt">involvement</span> in a writing workshop and the writing development of kindergarten students in an…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2014AdWR...73..123M','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2014AdWR...73..123M"><span id="translatedtitle"><span class="hlt">Impacts</span> of transport mechanisms and plume history on tailing of sorbing plumes in heterogeneous <span class="hlt">porous</span> formations</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Maghrebi, Mahdi; Jankovic, Igor; Allen-King, Richelle M.; Rabideau, Alan J.; Kalinovich, Indra; Weissmann, Gary S.</p> <p>2014-11-01</p> <p>This work investigated the <span class="hlt">impacts</span> of permeability and sorption heterogeneity on contaminant transport in groundwater using simulation experiments designed to elucidate the causes of tailing. The effects of advection, diffusion and sorption mechanisms and plume history were explored. A simple conceptual model consisting of a single inclusion (heterogeneity) of uniform hydraulic conductivity K and sorption distribution coefficient Kd was adopted. The 3D inclusion, shaped as a horizontal oblate ellipsoid of variable thickness, was placed in a homogeneous anisotropic background of different hydraulic conductivity and sorption distribution coefficient. The background represents average K and Kd of a heterogeneous <span class="hlt">porous</span> formation. A closed-form analytic flow solution for uniform flow past the inclusion was coupled with a numerical transport solution to simulate contaminant migration for a wide range of transport parameters and two distinct source conditions. Over 2600 numerical simulations were performed in parallel. Transport results were presented in terms of travel time distributions at a control plane downstream of the inclusion and used to quantify tailing for a wide range of transport parameters, in order to separate advection-dominated from diffusion-dominated transport regime and to investigate effects of inclusion shape, diffusion, sorption and plume history on tailing.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2014AGUFM.H33D0852N','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2014AGUFM.H33D0852N"><span id="translatedtitle"><span class="hlt">Impact</span> of viscous fingering and permeability heterogeneity on fluid mixing in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Nicolaides, C.; Jha, B.; Cueto-Felgueroso, L.; Juanes, R.</p> <p>2014-12-01</p> <p>Fluid mixing plays a fundamental role in many natural and engineered processes, including groundwater flows in <span class="hlt">porous</span> media, enhanced oil recovery, and microfluidic lab-on-a-chip systems[1]. Recent developments have explored the effect of viscosity contrast on mixing, suggesting that the unstable displacement of fluids with different viscosities, or viscous fingering, provides a powerful mechanism to increase fluid--fluid interfacial area and enhance mixing[2]. In this paper, we revisit the problem of subsurface contaminant transport through a heterogeneous aquifer in a quarter five-spot geometry[3] and we focus on the <span class="hlt">impact</span> of two principal sources of disorder in the flow field: viscosity contrast between the fluids and heterogeneity in the permeability field. We consider a wide range of viscosity ratios of the contaminant and the water, from a less viscous to a more viscous contaminant, flowing through a range of permeability fields, from almost homogeneous to strongly heterogeneous. We ask the following practical question: how does the interplay between viscosity contrast and permeability heterogeneity determine the evolution of macroscopic quantities that characterize the spatial structure and temporal evolution of a contaminant plume? We answer this question by conducting high resolution simulations of contaminant flow and transport in an aquifer, and by analyzing both point measurements of contaminant breakthrough and clean-up times as well as global degree of mixing and dilution of the contaminant plume. [1] M. Dentz, T. Le Borgne, A. Englert, and B. Bijeljic, Mixing, spreading and reaction in heterogeneous media: A brief review, J. Contam. Hydrol. 120, 1-17 (2011). [2] B. Jha, L. Cueto-Felgueroso, and R. Juanes, Fluid mixing from viscous fingering. Phys. Rev. Lett. 106, 194502 (2011) [3] J. Luo, M. Dentz, O. A. Cirpka, and P. K. Kitanidis, Breakthrough curve tailing in a dipole flow field, Water Resour. Res. 43(9), W09403 (2007).</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=sport+AND+university+AND+organization&pg=3&id=EJ816872','ERIC'); return false;" href="http://eric.ed.gov/?q=sport+AND+university+AND+organization&pg=3&id=EJ816872"><span id="translatedtitle"><span class="hlt">Impacts</span> of Campus <span class="hlt">Involvement</span> on Hospitality Student Achievement and Satisfaction</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Yin, Dean; Lei, Simon A.</p> <p>2007-01-01</p> <p>Campus <span class="hlt">involvement</span> affecting satisfaction and academic achievement (overall grade point average) of hospitality undergraduate students at a state university in the Midwest (University X) was investigated through a survey research. A four-part survey instrument was developed to facilitate this study. There were a number of academic, professional,…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3773043','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3773043"><span id="translatedtitle">Combined Orbital Floor and Medial Wall Fractures <span class="hlt">Involving</span> the Inferomedial Strut: Repair Technique and Case Series Using Preshaped <span class="hlt">Porous</span> Polyethylene/Titanium Implants</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Cho, Raymond I.; Davies, Brett W.</p> <p>2013-01-01</p> <p>Background Combined orbital floor and medial wall fractures can be technically challenging to repair, particularly when the inferomedial strut is <span class="hlt">involved</span>. A surgical repair technique is described utilizing a single preshaped <span class="hlt">porous</span> polyethylene/titanium implant to span both defects. Methods Retrospective interventional case series. Results Fracture repair was performed on 17 orbits (16 patients) between October 2009 and February 2012. Subsequent surgical revision was required in three cases (18%). Visual acuity was stable or improved in all cases. Of 7 patients with preoperative diplopia, 5 improved and 2 remained stable postoperatively, and there were no cases of new or worsened diplopia following surgery. Postoperative asymmetry in Hertel exophthalmometry averaged 1.0 mm (range 0 to 2 mm). Preoperatively, average orbital volume was 122.7% compared with control (range 109 to 147%, standard deviation [SD] 9.6), which improved to 100.3% postoperatively (range 92 to 110%, SD 5.7). The average decrease in orbital volume was 22.5% (range 10 to 54%, SD 11.4, p < 0.001). Conclusions With careful preoperative planning and meticulous surgical technique, combined orbital floor and medial wall fractures <span class="hlt">involving</span> the inferomedial strut can be successfully repaired with a preshaped <span class="hlt">porous</span> polyethylene/titanium implant through a transconjunctival/transcaruncular approach with inferior oblique disinsertion. PMID:24436754</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015AGUFM.H54F..03S','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015AGUFM.H54F..03S"><span id="translatedtitle">Modeling the <span class="hlt">Impact</span> of Fracture Growth on Fluid Displacements in Deformable <span class="hlt">Porous</span> Media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Santillán, D.; Cueto-Felgueroso, L.; Juanes, R.</p> <p>2015-12-01</p> <p>Coupled flow and geomechanics is a critical research challenge in engineering and the geosciences. The flow of a fluid through a deformable <span class="hlt">porous</span> media is present in manyenvironmental, industrial, and biological processes,such as the removal of pollutants from underground water bodies, enhanced geothermal systems, unconventional hydrocarbon resources or enhanced oil recovery techniques. However, the injection of a fluid can generate or propagate fractures, which are preferential flow paths. Using numerical simulation, we study the interplay between injection and rock mechanics, and elucidate fracture propagation as a function of injection rate, initial crack topology and mechanical rock properties. Finally, we discuss the role of fracture growth on fluid displacements in <span class="hlt">porous</span> media. Figure: An example of fracture (in red) propagated in a <span class="hlt">porous</span> media (in blue)</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/14827','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/14827"><span id="translatedtitle">Tailored <span class="hlt">Porous</span> Materials</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>BARTON,THOMAS J.; BULL,LUCY M.; KLEMPERER,WALTER G.; LOY,DOUGLAS A.; MCENANEY,BRIAN; MISONO,MAKOTO; MONSON,PETER A.; PEZ,GUIDO; SCHERER,GEORGE W.; VARTULI,JAMES C.; YAGHI,OMAR M.</p> <p>1999-11-09</p> <p>Tailoring of <span class="hlt">porous</span> materials <span class="hlt">involves</span> not only chemical synthetic techniques for tailoring microscopic properties such as pore size, pore shape, pore connectivity, and pore surface reactivity, but also materials processing techniques for tailoring the meso- and the macroscopic properties of bulk materials in the form of fibers, thin films and monoliths. These issues are addressed in the context of five specific classes of <span class="hlt">porous</span> materials: oxide molecular sieves, <span class="hlt">porous</span> coordination solids, <span class="hlt">porous</span> carbons, sol-gel derived oxides, and <span class="hlt">porous</span> heteropolyanion salts. Reviews of these specific areas are preceded by a presentation of background material and review of current theoretical approaches to adsorption phenomena. A concluding section outlines current research needs and opportunities.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2015JCHyd.183..109B&link_type=ABSTRACT','NASAADS'); return false;" href="http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2015JCHyd.183..109B&link_type=ABSTRACT"><span id="translatedtitle"><span class="hlt">Impact</span> of biofilm on bacterial transport and deposition in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Bozorg, Ali; Gates, Ian D.; Sen, Arindom</p> <p>2015-12-01</p> <p>Laboratory scale experiments were conducted to obtain insights into factors that influence bacterial transport and deposition in <span class="hlt">porous</span> media. According to colloidal filtration theory, the removal efficiency of a filter medium is characterized by two main factors: collision efficiency and sticking efficiency. In the case of bacterial transport in <span class="hlt">porous</span> media, bacteria attached to a solid surface can establish a thin layer of biofilm by excreting extracellular polymeric substances which can significantly influence both of these factors in a <span class="hlt">porous</span> medium, and thus, affect the overall removal efficiency of the filter medium. However, such polymeric interactions in bacterial adhesion are not well understood and a method to calculate polymeric interactions is not yet available. Here, to determine how the migration of bacteria flowing within a <span class="hlt">porous</span> medium is affected by the presence of surface-associated extracellular polymeric substances previously produced and deposited by the same bacterial species, a commonly used colloidal filtration model was applied to study transport and deposition of Pseudomonas fluorescens in small-scale columns packed with clean and biofilm coated glass beads. Bacterial recoveries were monitored in column effluents and used to quantify biofilm interactions and sticking efficiencies of the biofilm coated packed-beds. The results indicated that, under identical hydraulic conditions, the sticking efficiencies in packed-beds were improved consistently by 36% when covered by biofilm.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26583740','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26583740"><span id="translatedtitle"><span class="hlt">Impact</span> of biofilm on bacterial transport and deposition in <span class="hlt">porous</span> media.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Bozorg, Ali; Gates, Ian D; Sen, Arindom</p> <p>2015-12-01</p> <p>Laboratory scale experiments were conducted to obtain insights into factors that influence bacterial transport and deposition in <span class="hlt">porous</span> media. According to colloidal filtration theory, the removal efficiency of a filter medium is characterized by two main factors: collision efficiency and sticking efficiency. In the case of bacterial transport in <span class="hlt">porous</span> media, bacteria attached to a solid surface can establish a thin layer of biofilm by excreting extracellular polymeric substances which can significantly influence both of these factors in a <span class="hlt">porous</span> medium, and thus, affect the overall removal efficiency of the filter medium. However, such polymeric interactions in bacterial adhesion are not well understood and a method to calculate polymeric interactions is not yet available. Here, to determine how the migration of bacteria flowing within a <span class="hlt">porous</span> medium is affected by the presence of surface-associated extracellular polymeric substances previously produced and deposited by the same bacterial species, a commonly used colloidal filtration model was applied to study transport and deposition of Pseudomonas fluorescens in small-scale columns packed with clean and biofilm coated glass beads. Bacterial recoveries were monitored in column effluents and used to quantify biofilm interactions and sticking efficiencies of the biofilm coated packed-beds. The results indicated that, under identical hydraulic conditions, the sticking efficiencies in packed-beds were improved consistently by 36% when covered by biofilm. PMID:26583740</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2005cmns.conf..771C','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2005cmns.conf..771C"><span id="translatedtitle"><span class="hlt">Impact</span> of Boundary Effects <span class="hlt">Involving</span> Broken Gauge Symmetry on Lenr's</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Chubb, Scott R.</p> <p>2005-12-01</p> <p>Surfaces have a huge <span class="hlt">impact</span> on the physics and chemistry of solids. Changes in surfaces (or other boundaries of a solid), in particular, can be related to changes in the local ("chemical") environment. In the idealized limit, in which surfaces are defined as "boundaries" associated with a lack of, or accumulation of charge, dynamical effects at surfaces can be used and are required (by the associated coupling to external electromagnetic fields) to relate seemingly unrelated local and non-local effects. Thus, counter-intuitive ideas about local and non-local effects can become dominant. In particular, in PdH or PdD, provided external forces are applied uniformly, it is entirely possible for hydrogen (p) or deuterium (d) nuclei to acquire a common phase (a broken gauge symmetry1) and to "become wave-like" and interact coherently, through the electromagnetic field, simultaneously, but an isotropically at the boundaries of a PdD or PdH substrate, or at isolated locations within either substrate. Also, these effects can create coupling between localized and delocalized forms of interaction. We use these and related effects as the basis for suggesting new experiments that have bearing on the findings of Iwamura et al., concerning the "apparent" transmutation of Cs-Pr.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=positive+AND+parenting+AND+style&pg=5&id=EJ571135','ERIC'); return false;" href="http://eric.ed.gov/?q=positive+AND+parenting+AND+style&pg=5&id=EJ571135"><span id="translatedtitle">Understanding the <span class="hlt">Impact</span> of Parent School <span class="hlt">Involvement</span> on Children's Educational Outcomes.</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Zellman, Gail L.; Waterman, Jill M.</p> <p>1998-01-01</p> <p>Investigated the <span class="hlt">impact</span> of parental <span class="hlt">involvement</span> on elementary students' educational outcomes. Data from a study of 193 Los Angeles area second and fifth graders and their mothers indicated that parent school <span class="hlt">involvement</span> contributes to positive child outcomes. The <span class="hlt">involvement</span> appears to be a manifestation of parental enthusiasm and positive…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/22107848','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/22107848"><span id="translatedtitle"><span class="hlt">Impact</span> of <span class="hlt">porous</span> medium on the high cycle temperature fluctuations in a mixing tee</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Bu, L.; Zhao, J.</p> <p>2012-07-01</p> <p>Temperature fluctuations occur in the region where hot and cold fluids mix turbulently in the nuclear power plants. Temperature fluctuations cause thermal fatigue of piping systems. In the design of generation IV nuclear power plants, supercritical fluids are supposed to be used widely. This paper investigated the thermal striping phenomenon caused by the turbulent mixing in a supercritical water Tee. There are two key issues in the study of thermal striping phenomenon: One is to find the region which experiences the peak temperature fluctuation; the other is how to attenuate it. <span class="hlt">Porous</span> media was used to attenuate the temperature fluctuations in this paper. The results show that <span class="hlt">porous</span> media with proper parameters in a tee can reduce the temperature fluctuations magnificently. (authors)</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2016JPS...320...59S&link_type=ABSTRACT','NASAADS'); return false;" href="http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2016JPS...320...59S&link_type=ABSTRACT"><span id="translatedtitle">Atomic structural and electrochemical <span class="hlt">impact</span> of Fe substitution on nano <span class="hlt">porous</span> LiMnPO4</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Seo, Inseok; Senthilkumar, B.; Kim, Kwang-Ho; Kim, Jae-Kwang; Kim, Youngsik; Ahn, Jou-Hyeon</p> <p>2016-07-01</p> <p>The atomic structural and electrochemical properties of Fe substituted nano <span class="hlt">porous</span> LiMn1-xFexPO4 (x = 0-0.8) composites are investigated and compared. X-ray scattering method is used for atomic structural investigation. Rietveld refinement shows that all Fe substituted composites have the same olivine structure (Pnma) with lithium occupying octahedral 4a sites, Fe2+ replacing Mn2+ at the octahedral 4c sites. The a, b, c parameters and cell volume decrease with the addition of Fe2+. When the nano <span class="hlt">porous</span> LiMn1-xFexPO4 composites are evaluated as cathode materials in lithium cells at room temperature, x = 0.6, and 0.8 resulted in the best overall electrochemical performance, exhibiting stable cycling and high discharge capacities of 149 and 154 mA h g-1, respectively. The composites with above x = 0.4 show a fast lithium ions transfer with high electronic conductivity because Fe transition metal substitution reduce the partly occupation of Mn in the M1 (LiO6) sites and thereby Mn block the lithium ion diffusion pathway. We here firstly find the antisite defect in the high Mn content in <span class="hlt">porous</span> LiMn1-xFexPO4 composites.</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_1");'>1</a></li> <li class="active"><span>2</span></li> <li><a href="#" onclick='return showDiv("page_3");'>3</a></li> <li><a href="#" onclick='return showDiv("page_4");'>4</a></li> <li><a href="#" onclick='return showDiv("page_5");'>5</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_2 --> <div id="page_3" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_1");'>1</a></li> <li><a href="#" onclick='return showDiv("page_2");'>2</a></li> <li class="active"><span>3</span></li> <li><a href="#" onclick='return showDiv("page_4");'>4</a></li> <li><a href="#" onclick='return showDiv("page_5");'>5</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="41"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2016AIPC.1698d0009I','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2016AIPC.1698d0009I"><span id="translatedtitle">High-speed <span class="hlt">impact</span> of the metal projectile on the barrier containing <span class="hlt">porous</span> corundum-based ceramics with chemically active filler</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Ischenko, Alexander; Afanas'eva, Svetlana; Belov, Nikolai; Blinov, Vasiliy; Burkin, Vladimir; Korolkov, Leonid; Rogaev, Konstantin; Khabibullin, Marat; Yugov, Nikolai</p> <p>2016-01-01</p> <p>The paper presents a calculation-experimental study on high-speed interaction of the metal projectile with a combined barrier made of <span class="hlt">porous</span> corundum-based ceramics filled with chemically active composition (sulfur, nitrate of potash) in the wide range of speeds. A mathematical behavior model of <span class="hlt">porous</span> corundum-based ceramics with chemically active filler is developed within the scope of mechanics of continuous media taking into account the energy embedding from a possible chemical reaction between a projectile metal and filler at high-speed <span class="hlt">impact</span>. Essential embedding of inlet heat is not observed in the considered range of <span class="hlt">impact</span> speeds (2.5 … 8 km/s).</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015AGUFM.H31A1407W','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015AGUFM.H31A1407W"><span id="translatedtitle">Free and Forced Convection in High Permeability <span class="hlt">Porous</span> Media: <span class="hlt">Impact</span> on Gas Flux at the Earth-atmosphere Interface</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Weisbrod, N.; Levintal, E.; Dragila, M. I.; Kamai, T.</p> <p>2015-12-01</p> <p>Gas movement within the earth's subsurface and its exchange with the atmosphere is one of the principal elements contributing to soil and atmospheric function. As the soil permeability increases, gas circulation by convective mechanisms becomes significantly greater than the diffusion. Two of the convective mechanisms, which can be of great importance, are being explored in this research. The first one is thermal convection venting (TCV), which develops when there are unstable density gradients. The second mechanism is wind induced convection (WIC), which develops due to surface winds that drive air movement. Here, we report the results of a study on the relationships between the <span class="hlt">porous</span> media permeability and particle size, and the development and magnitude of TCV and WIC with the development of thermal differences and surface winds. The research included large high-permeability column experiments carried out under highly controlled laboratory conditions, using well-defined single-sized spherical particles while surface winds and thermal differences were forced and monitored. CO2 enriched air, functioned as a tracer, was used to quantify the <span class="hlt">impact</span> of TCV and WIC on gas migration in the <span class="hlt">porous</span> media. Results show that in homogenous <span class="hlt">porous</span> media a permeability range of 10-7 to 10-6 m2 is the threshold value for TCV onset under standard atmospheric conditions. Adding surface wind with an average velocity of 1.5 m s-1 resulted in WIC effect to a depth of -0.3 m in most experimental settings; however, it did not caused additional air circulation at the reference depth of -0.9 m. Furthermore, given the appropriate conditions, a combined effect of TCV and WIC did significantly increase the overall media ventilation. Simulations of temperature profiles in soil under that permeability, showed that as the thermal gradient changes with depth and is a continuous function, TCV cells can be developed in local sections of the profile, not necessarily reaching the atmosphere.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2014WRR....50.9103K','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2014WRR....50.9103K"><span id="translatedtitle"><span class="hlt">Impact</span> of biofilm-induced heterogeneities on solute transport in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Kone, T.; Golfier, F.; Orgogozo, L.; Oltéan, C.; Lefèvre, E.; Block, J. C.; Buès, M. A.</p> <p>2014-11-01</p> <p>In subsurface systems, biofilm may degrade organic or organometallic pollutants contributing to natural attenuation and soil bioremediation techniques. This increase of microbial activity leads to change the hydrodynamic properties of aquifers. The purpose of this work was to investigate the influence of biofilm-induced heterogeneities on solute transport in <span class="hlt">porous</span> media and more specifically on dispersivity. We pursued this goal by (i) monitoring both spatial concentration fields and solute breakthrough curves from conservative tracer experiments in a biofilm-supporting <span class="hlt">porous</span> medium, (ii) characterizing in situ the changes in biovolume and visualizing the dynamics of the biological material at the mesoscale. A series of experiments was carried out in a flow cell system (60 cm3) with a silica sand (Φ = 50-70 mesh) as solid carrier and Shewanella oneidensis MR-1 as bacterial strain. Biofilm growth was monitored by image acquisition with a digital camera. The biofilm volume fraction was estimated through tracer experiments with the Blue Dextran macromolecule as in size-exclusion chromatography, leading to a fair picture of the biocolonization within the flow cell. Biofilm growth was achieved in the whole flow cell in 29 days and up to 50% of void space volume was plugged. The influence of biofilm maturation on <span class="hlt">porous</span> medium transport properties was evaluated from tracer experiments using Brilliant Blue FCF. An experimental correlation was found between effective (i.e., nonbiocolonized) porosity and biofilm-affected dispersivity. Comparison with values given by the theoretical model of Taylor and Jaffé (1990b) yields a fair agreement.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://files.eric.ed.gov/fulltext/EJ1054940.pdf','ERIC'); return false;" href="http://files.eric.ed.gov/fulltext/EJ1054940.pdf"><span id="translatedtitle">The <span class="hlt">Impact</span> of <span class="hlt">Involving</span> Students in Managing the Quality of Higher Education Provision</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Garwe, Evelyn Chiyevo</p> <p>2015-01-01</p> <p>This study was aimed at exploring the power of student <span class="hlt">involvement</span> in improving quality of higher educational provision in private higher education institutions in Zimbabwe. A longitudinal approach <span class="hlt">involving</span> two separate surveys and covering a period of three years was used. A preliminary survey aimed at assessing the issues that <span class="hlt">impact</span> negatively…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=work+AND+motivation&pg=6&id=ED531436','ERIC'); return false;" href="http://eric.ed.gov/?q=work+AND+motivation&pg=6&id=ED531436"><span id="translatedtitle">The <span class="hlt">Impact</span> of Motivation to Lead on College Students' Cocurricular <span class="hlt">Involvement</span></span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Pepper, Robert C.</p> <p>2009-01-01</p> <p>This exploratory research examined the <span class="hlt">impact</span> of motivation to lead on college students' cocurricular <span class="hlt">involvement</span>. The question driving this research was: Is motivation to lead a predictor of cocurricular student <span class="hlt">involvement</span>? A 52-item questionnaire that included the Motivation to Lead Self-Report Questionnaire (Chan & Drasgow, 2001) was used to…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26821548','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26821548"><span id="translatedtitle">Decreasing Risky Behavior on Social Network Sites: The <span class="hlt">Impact</span> of Parental <span class="hlt">Involvement</span> in Secondary Education Interventions.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Vanderhoven, Ellen; Schellens, Tammy; Valcke, Martin</p> <p>2016-06-01</p> <p>Teenagers face significant risks when using increasingly popular social network sites. Prevention and intervention efforts to raise awareness about these risks and to change risky behavior (so-called "e-safety" interventions) are essential for the wellbeing of these minors. However, several studies have revealed that while school interventions often affect awareness, they have only a limited <span class="hlt">impact</span> on pupils' unsafe behavior. Utilizing the Theory of Planned Behavior and theories about parental <span class="hlt">involvement</span>, we hypothesized that <span class="hlt">involving</span> parents in an e-safety intervention would positively influence pupils' intentions and behavior. In a quasi-experimental study with pre- and post-test measures <span class="hlt">involving</span> 207 pupils in secondary education, we compared the <span class="hlt">impact</span> of an intervention without parental <span class="hlt">involvement</span> with one that included active parental <span class="hlt">involvement</span> by means of a homework task. We found that whereas parental <span class="hlt">involvement</span> was not necessary to improve the intervention's <span class="hlt">impact</span> on risk awareness, it did change intentions to engage in certain unsafe behavior, such as posting personal and sexual information on the profile page of a social network site, and in reducing existing problematic behavior. This beneficial <span class="hlt">impact</span> was particularly evident for boys. These findings suggest that developing prevention campaigns with active parental <span class="hlt">involvement</span> is well worth the effort. Researchers and developers should therefore focus on other efficient strategies to <span class="hlt">involve</span> parents. PMID:26821548</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/18275319','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/18275319"><span id="translatedtitle">The <span class="hlt">impact</span> of banners on digital television: the role of program interactivity and product <span class="hlt">involvement</span>.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Cauberghe, Verolien; De Pelsmacker, Patrick</p> <p>2008-02-01</p> <p>In a sample of 281 respondents, the effect of a noninteractive and a medium-interactive television program on recall and brand attitudes for low- and high-<span class="hlt">involvement</span> products advertised in banners during these programs was investigated. Medium-interactive programs resulted in less product and brand recall and recognition of brands in embedded banner advertisements, but generated more positive brand attitudes than noninteractive programs. These effects were more outspoken for a high-<span class="hlt">involvement</span> product than for a low-<span class="hlt">involvement</span> product. The <span class="hlt">impact</span> of perceived program interactivity on brand attitude is fully mediated program valence and <span class="hlt">involvement</span> for low-<span class="hlt">involvement</span> products, but not for high-<span class="hlt">involvement</span> products, for which perceived program interactivity had a direct <span class="hlt">impact</span> on brand attitude. PMID:18275319</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2016EGUGA..18.4035M&link_type=ABSTRACT','NASAADS'); return false;" href="http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2016EGUGA..18.4035M&link_type=ABSTRACT"><span id="translatedtitle"><span class="hlt">Impact</span> of multicomponent ionic transport on pH fronts propagation in saturated <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Muniruzzaman, Muhammad; Rolle, Massimo</p> <p>2016-04-01</p> <p>Multicomponent ionic interactions have been increasingly recognized as important factors for the displacement of charged species in <span class="hlt">porous</span> media under both diffusion- [1,2] and advection-dominated flow regimes [3,4]. In this study we investigate the propagation of pH fronts during multicomponent ionic transport in saturated <span class="hlt">porous</span> media under flow-through conditions. By performing laboratory bench-scale experiments combined with numerical modeling we show the important influence of Coulombic effects on proton transport in the presence of ionic admixtures. The experiments were performed in a quasi two-dimensional flow-through setup under steady-state flow and transport conditions. Dilute solutions of hydrochloric acid with MgCl2 (1:2 strong electrolyte) were used as tracer solutions to experimentally test the effect of electrochemical cross-coupling on the migration of diffusive/dispersive pH fronts. We focus on two experimental scenarios, with different composition of tracer solutions, causing remarkably different effects on the propagation of the acidic fronts with relative differences in the penetration depth of pH fronts of 36% between the two scenarios and of 25% and 15% for each scenario with respect to the transport of ions at liberated state (i.e., without considering the charge effects). Also significant differences in the dilution of the distinct ionic plumes, quantified using the flux-related dilution index at the laboratory bench scale [5], were measured at the outflow of the flow-through system. The dilution of the pH plumes also changed considerably (26% relative difference) in the two flow-through experiments only due to the different composition of the pore water solution and to the electrostatic coupling of the ions in the flow-through setups. Numerical transport simulations were performed to interpret the laboratory experiments. The simulations were based on a multicomponent ionic formulation accurately capturing the Coulombic interactions between</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3165047','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3165047"><span id="translatedtitle"><span class="hlt">IMPACT</span> OF NON-IDEAL SORPTION ON LOW-CONCENTRATION TAILING BEHAVIOR FOR ATRAZINE TRANSPORT IN TWO NATURAL <span class="hlt">POROUS</span> MEDIA</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Kempf, A.</p> <p>2011-01-01</p> <p>The <span class="hlt">impact</span> of nonideal sorption on atrazine transport was investigated for two sandy <span class="hlt">porous</span> media with 0.38 and 0.03% organic-carbon contents. In contrast to prior investigations, effluent atrazine concentrations were monitored over a range of five orders of magnitude to examine long-term elution behavior. As characterized by batch experiments, atrazine experienced nonlinear sorption for both media. The results of the column experiments showed that atrazine exhibited extensive elution tailing (delayed approach to relative concentration of zero). This non-ideal transport was more pronounced for the medium with higher organic-carbon content. A mathematical model incorporating nonlinear, rate-limited sorption/desorption described by a continuous distribution function was used to successfully simulate atrazine transport. PMID:19699507</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2013AGUFM.H12E..08H','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2013AGUFM.H12E..08H"><span id="translatedtitle">Oxygen Transfer in a Fluctuating Capillary Fringe: <span class="hlt">Impact</span> of <span class="hlt">Porous</span> Medium Heterogeneity</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Haberer, C.; Rolle, M.; Cirpka, O. A.; Grathwohl, P.</p> <p>2013-12-01</p> <p>Mass transfer of oxygen from the atmosphere, across the capillary fringe, to anoxic groundwater is of primary importance for many biogeochemical processes affecting groundwater quality. The controlling mechanisms for oxygen transfer across the capillary fringe are the diffusive/dispersive transport as well as mass exchange between entrapped air and groundwater. In addition, the presence of physical heterogeneity in the <span class="hlt">porous</span> medium may strongly affect the oxygen fluxes. We performed quasi two-dimensional flow-through experiments at the laboratory bench-scale to study the effect of a coarse-material inclusion, located in proximity of the water table, on flow and oxygen transfer in the capillary fringe. Flow and transport were monitored under both steady-state and transient flow conditions, the latter obtained by fluctuating the water table. We visually inspected the complex flow field using a dye tracer solution, measured vertical oxygen profiles across the capillary fringe at high spatial resolution, and determined oxygen fluxes in the effluent of the flow-through chamber. Our results show that the coarse-material inclusion significantly affected oxygen transfer during the different phases of the experiments. At steady state, the oxygen flux across the unsaturated/saturated interface was considerably enhanced due to flow focusing in the fully water-saturated coarse lens. During drainage, the capillary barrier effect prevented water to drain from the fine material overlying the coarse lens. The entrapped oxygen-rich aqueous phase contributed to the total amount of oxygen supplied to the system when the water table was raised back to its initial level. In case of imbibition, also pronounced entrapment of air occurred in the coarse lens, causing oxygen to partition between the aqueous and gaseous phases. Thus, we found that oxygen transfer across the capillary fringe was significantly enhanced by the coarse-material inclusion due to flow focusing, the capillary</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2014AGUFM.H33D0846S','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2014AGUFM.H33D0846S"><span id="translatedtitle">Modeling the <span class="hlt">Impact</span> of Deformation on Unstable Miscible Displacements in <span class="hlt">Porous</span> Media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Santillán, D.; Cueto-Felgueroso, L.</p> <p>2014-12-01</p> <p>Coupled flow and geomechanics is a critical research challenge in engineering and the geosciences. The simultaneous flow of two or more fluids with different densities or viscosities through deformable media is ubiquitous in environmental, industrial, and biological processes, including the removal of non-aqueous phase liquids from underground water bodies, the geological storage of CO2, and current challenges in energy technologies, such as enhanced geothermal systems, unconventional hydrocarbon resources or enhanced oil recovery techniques. Using numerical simulation, we study the interplay between viscous-driven flow instabilities (viscous fingering) and rock mechanics, and elucidate the structure of the displacement patterns as a function of viscosity contrast, injection rate and rock mechanical properties. Finally, we discuss the role of medium deformation on transport and mixing processes in <span class="hlt">porous</span> media.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015WRR....51.6739M','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015WRR....51.6739M"><span id="translatedtitle"><span class="hlt">Impact</span> of multicomponent ionic transport on pH fronts propagation in saturated <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Muniruzzaman, Muhammad; Rolle, Massimo</p> <p>2015-08-01</p> <p>We investigate the propagation of pH fronts during multicomponent ionic transport in saturated <span class="hlt">porous</span> media under flow-through conditions. By performing laboratory bench-scale experiments combined with numerical modeling, we show the important influence of Coulombic effects on proton transport in the presence of ionic admixtures. The experiments were performed in a quasi two-dimensional flow-through setup under steady-state flow and transport conditions. Dilute solutions of hydrochloric acid with MgCl2 (1:2 strong electrolyte) were used as tracer solutions to experimentally test the effect of electrochemical cross coupling on the migration of diffusive/dispersive pH fronts. We focus on two experimental scenarios, with different composition of tracer solutions, causing remarkably different effects on the propagation of the acidic fronts with relative differences in the penetration depth of pH fronts of 36% between the two scenarios and of 25% and 15% for each scenario with respect to the transport of ions at liberated state (i.e., without considering the charge effects). Also differences in the dilution of the distinct ions plumes up to 28% and 45% in experiment 1 and 2, respectively, were measured at the outflow of the flow-through system. The dilution of the pH plumes also changed considerably (26% relative difference) in the two flow-through experiments only due to the different composition of the pore water solution and to the electrostatic coupling of the ions in the flow-through setups. Numerical transport simulations were performed to interpret the laboratory experiments. The simulations were based on a multicomponent ionic formulation accurately capturing the Coulombic interactions between the transported ions in the flow-through system. The results of purely forward simulations show a very good agreement with the high-resolution measurements performed at the outlet of the flow-through setup and confirms the importance of charge effects on pH transport in</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=5013512','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=5013512"><span id="translatedtitle">Psychological <span class="hlt">impact</span> and recovery after <span class="hlt">involvement</span> in a patient safety incident: a repeated measures analysis</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Van Gerven, Eva; Bruyneel, Luk; Panella, Massimiliano; Euwema, Martin; Sermeus, Walter; Vanhaecht, Kris</p> <p>2016-01-01</p> <p>Objective To examine individual, situational and organisational aspects that influence psychological <span class="hlt">impact</span> and recovery of a patient safety incident on physicians, nurses and midwives. Design Cross-sectional, retrospective surveys of physicians, midwives and nurses. Setting 33 Belgian hospitals. Participants 913 clinicians (186 physicians, 682 nurses, 45 midwives) <span class="hlt">involved</span> in a patient safety incident. Main outcome measures The <span class="hlt">Impact</span> of Event Scale was used to retrospectively measure psychological <span class="hlt">impact</span> of the safety incident at the time of the event and compare it with psychological <span class="hlt">impact</span> at the time of the survey. Results Individual, situational as well as organisational aspects influenced psychological <span class="hlt">impact</span> and recovery of a patient safety incident. Psychological <span class="hlt">impact</span> is higher when the degree of harm for the patient is more severe, when healthcare professionals feel responsible for the incident and among female healthcare professionals. <span class="hlt">Impact</span> of degree of harm differed across clinicians. Psychological <span class="hlt">impact</span> is lower among more optimistic professionals. Overall, <span class="hlt">impact</span> decreased significantly over time. This effect was more pronounced for women and for those who feel responsible for the incident. The longer ago the incident took place, the stronger <span class="hlt">impact</span> had decreased. Also, higher psychological <span class="hlt">impact</span> is related with the use of a more active coping and planning coping strategy, and is unrelated to support seeking coping strategies. Rendered support and a support culture reduce psychological <span class="hlt">impact</span>, whereas a blame culture increases psychological <span class="hlt">impact</span>. No associations were found with job experience and resilience of the health professional, the presence of a second victim support team or guideline and working in a learning culture. Conclusions Healthcare organisations should anticipate on providing their staff appropriate and timely support structures that are tailored to the healthcare professional <span class="hlt">involved</span> in the incident and to the specific</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015WRR....51.1710J','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015WRR....51.1710J"><span id="translatedtitle"><span class="hlt">Impact</span> of interfacial tension on residual CO2 clusters in <span class="hlt">porous</span> sandstone</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Jiang, Fei; Tsuji, Takeshi</p> <p>2015-03-01</p> <p>We develop a numerical simulation that uses the lattice Boltzmann method to directly calculate the characteristics of residual nonwetting-phase clusters to quantify capillary trapping mechanisms in real sandstone. For this purpose, a digital-rock-pore model reconstructed from micro-CT-scanned images of Berea sandstone is filtered and segmented into a binary file. The residual-cluster distribution is generated following simulation of the drainage and imbibition processes. The characteristics of the residual cluster in terms of size distribution, major length, interfacial area, and sphericity are investigated under conditions of different interfacial tension (IFT). Our results indicate that high interfacial tension increases the residual saturation and leads to a large size distribution of residual clusters. However, low interfacial tension results in a larger interfacial area, which is beneficial for dissolution and reaction processes during geological carbon storage. Analysis of the force balance acting on the residual clusters demonstrates that trapping stability is higher in high interfacial tension case, and the interfacial tension should be a controlling factor for the trapping stability in addition to the pore geometry and connectivity. The proposed numerical method can handle the complex displacement of multicomponent systems in <span class="hlt">porous</span> media. By using this method, we can obtain residual-cluster distributions under different conditions for optimizing the storage capacity of carbon-storage projects.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26705829','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26705829"><span id="translatedtitle">Bacteria cell properties and grain size <span class="hlt">impact</span> on bacteria transport and deposition in <span class="hlt">porous</span> media.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Bai, Hongjuan; Cochet, Nelly; Pauss, André; Lamy, Edvina</p> <p>2016-03-01</p> <p>The simultaneous role of bacteria cell properties and <span class="hlt">porous</span> media grain size on bacteria transport and deposition behavior was investigated in this study. Transport column experiments and numerical HYDRUS-1D simulations of three bacteria with different cell properties (Escherichia coli, Klebsiella oxytoca, and Rhodococcus rhodochrous) were carried out on two sandy media with different grain sizes, under saturated steady state flow conditions. Each bacterium was characterized by cell size and shape, cell motility, electrophoretic mobility, zeta potential, hydrophobicity and potential of interaction with the sand surface. Cell characteristics affected bacteria transport behavior in the fine sand, but similar bacteria breakthroughs and retardation factors observed in the coarse sand, indicated that bacteria transport was more depended on grain size than on bacteria cell properties. Retention decreased with increasing hydrophobicity and increased with increasing electrophoretic mobility of bacteria for both sand. The increasing sand grain size resulted in a decrease of bacteria retention, except for the motile E. coli, indicating that retention of this strain was more dependent on cell motility than on the sand grain size. Bacteria deposition coefficients obtained from numerical simulations of the retention profiles indicated that straining was an important mechanism affecting bacteria deposition of E. coli and Klebsiella sp., in the fine sand, but the attachment had the same importance as straining for R. rhodochrous. The results obtained in the coarse sand did not permit to discriminate the predominant mechanism of bacteria deposition and the relative implication of bacteria cell properties of this process. PMID:26705829</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2013duvi.workE...1S','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2013duvi.workE...1S"><span id="translatedtitle">Calibration of <span class="hlt">impact</span> ionization dust detectors with <span class="hlt">porous</span> or fluffy dust particles</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Sterken, V. J.; Moragas-Klostermeyer, G.; Hillier, J. K.; Bugiel, S.; Srama, R.; Armes, S. P.; Fielding; L. A.; Lovett, J. R.; Grün, E.</p> <p>2013-07-01</p> <p><span class="hlt">Impact</span> ionization instruments like the ones flying on Cassini, Galileo, Helios and Ulysses have been calibrated using compact particles made of conductive materials like iron, or of minerals (like Olivine, Orthopyroxene, Magnetite, Pyrite) coated with a thin layer of conductive material. These calibrations were performed by shooting cosmic dust analogues with hypervelocity speeds from 1 to 80 km/s onto the flight spares of these instruments, using the Van de Graaff dust accelerator facility in Heidelberg. Here, we perform first measurements with Cassini CDA of the influence of the density of these dust particles on the resulting signal by, for a given <span class="hlt">impact</span> speed, comparing signals from micron-sized particles made of compact PPy-coated silica to those from (PPy-coated) hollow silica spheres. The degree of <span class="hlt">impact</span> ionization depends on the ratio of the densities of the target material and the impactor material and hence, different signals may result from <span class="hlt">impacts</span> with diffe! rent density or porosity.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2014Tectp.634..171B','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2014Tectp.634..171B"><span id="translatedtitle">Scaling of sub-surface deformation in hypervelocity <span class="hlt">impact</span> experiments on <span class="hlt">porous</span> sandstone</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Buhl, Elmar; Poelchau, Michael; Dresen, Georg; Kenkmann, Thomas</p> <p>2014-11-01</p> <p>Two hypervelocity <span class="hlt">impact</span> experiments into dry sandstone (Seeberger Sandstein, ~ 23% porosity), performed under similar <span class="hlt">impact</span> conditions but with different projectile sizes, have been analyzed to investigate the size scaling of <span class="hlt">impact</span> damage. For one experiment a 2.5 mm steel projectile was <span class="hlt">impacted</span> at 4.8 km s- 1 onto a sandstone cube of 20 cm side length. For the other experiment a 10 mm iron meteorite projectile was <span class="hlt">impacted</span> at 4.6 km s- 1 onto a sandstone cube of 50 cm side length. The resulting kinetic <span class="hlt">impact</span> energies of 773 and 42,627 J led to crater cavities of 7600 and 612,000 mm3. Investigation of thin sections along cross-sections through both craters revealed that the same deformation microstructures are present in both experiments. The occurrence of different microstructural patterns was mapped and zones of characteristic deformation were defined. This mapping was used to calculate the volumes of material deformed by specific mechanisms. Comparing the results, normalized to the size of the projectile, showed that the sub-surface damage is very similar in size, volume and geometry for both experiments. Analysis of deformation bands found in both experiments regarding their long axes orientation showed that these features are developed under shear deformation. Particle size distributions (PSD), expressed as power-law fits, were measured to quantify the <span class="hlt">impact</span> damage. Comparison showed that the decay of the power-law exponents with increasing distance from the <span class="hlt">impact</span> point source is similar for both experiments. Reconstruction of the loading path allowed to infer the stresses under which distinct deformation microstructures are developed.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2016WRR....52.3637L','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2016WRR....52.3637L"><span id="translatedtitle"><span class="hlt">Impact</span> of kinetic mass transfer on free convection in a <span class="hlt">porous</span> medium</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Lu, Chunhui; Shi, Liangsheng; Chen, Yiming; Xie, Yueqing; Simmons, Craig T.</p> <p>2016-05-01</p> <p>We investigate kinetic mass transfer effects on unstable density-driven flow and transport processes by numerical simulations of a modified Elder problem. The first-order dual-domain mass transfer model coupled with a variable-density-flow model is employed to describe transport behavior in <span class="hlt">porous</span> media. Results show that in comparison to the no-mass-transfer case, a higher degree of instability and more unstable system is developed in the mass transfer case due to the reduced effective porosity and correspondingly a larger Rayleigh number (assuming permeability is independent on the mobile porosity). Given a constant total porosity, the magnitude of capacity ratio (i.e., immobile porosity/mobile porosity) controls the macroscopic plume profile in the mobile domain, while the magnitude of mass transfer timescale (i.e., the reciprocal of the mass transfer rate coefficient) dominates its evolution rate. The magnitude of capacity ratio plays an important role on the mechanism driving the mass flux into the aquifer system. Specifically, for a small capacity ratio, solute loading is dominated by the density-driven transport, while with increasing capacity ratio local mass transfer dominated solute loading may occur at later times. At significantly large times, however, both mechanisms contribute comparably to solute loading. Sherwood Number could be a nonmonotonic function of mass transfer timescale due to complicated interactions of solute between source zone, mobile zone and immobile zone in the top boundary layer, resulting in accordingly a similar behavior of the total mass. The initial assessment provides important insights into unstable density-driven flow and transport in the presence of kinetic mass transfer.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/19870014062','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/19870014062"><span id="translatedtitle">Centrifuge <span class="hlt">impact</span> cratering experiments: Scaling laws for non-<span class="hlt">porous</span> targets</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Schmidt, Robert M.</p> <p>1987-01-01</p> <p>A geotechnical centrifuge was used to investigate large body <span class="hlt">impacts</span> onto planetary surfaces. At elevated gravity, it is possible to match various dimensionless similarity parameters which were shown to govern large scale <span class="hlt">impacts</span>. Observations of crater growth and target flow fields have provided detailed and critical tests of a complete and unified scaling theory for <span class="hlt">impact</span> cratering. Scaling estimates were determined for nonporous targets. Scaling estimates for large scale cratering in rock proposed previously by others have assumed that the crater radius is proportional to powers of the impactor energy and gravity, with no additional dependence on <span class="hlt">impact</span> velocity. The size scaling laws determined from ongoing centrifuge experiments differ from earlier ones in three respects. First, a distinct dependence of <span class="hlt">impact</span> velocity is recognized, even for constant impactor energy. Second, the present energy exponent for low porosity targets, like competent rock, is lower than earlier estimates. Third, the gravity exponent is recognized here as being related to both the energy and the velocity exponents.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('https://www.gpo.gov/fdsys/pkg/CFR-2011-title18-vol1/pdf/CFR-2011-title18-vol1-sec33-4.pdf','CFR2011'); return false;" href="https://www.gpo.gov/fdsys/pkg/CFR-2011-title18-vol1/pdf/CFR-2011-title18-vol1-sec33-4.pdf"><span id="translatedtitle">18 CFR 33.4 - Additional information requirements for applications <span class="hlt">involving</span> vertical competitive <span class="hlt">impacts</span>.</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collectionCfr.action?selectedYearFrom=2011&page.go=Go">Code of Federal Regulations, 2011 CFR</a></p> <p></p> <p>2011-04-01</p> <p>... 18 Conservation of Power and Water Resources 1 2011-04-01 2011-04-01 false Additional information requirements for applications <span class="hlt">involving</span> vertical competitive <span class="hlt">impacts</span>. 33.4 Section 33.4 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT APPLICATIONS...</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_1");'>1</a></li> <li><a href="#" onclick='return showDiv("page_2");'>2</a></li> <li class="active"><span>3</span></li> <li><a href="#" onclick='return showDiv("page_4");'>4</a></li> <li><a href="#" onclick='return showDiv("page_5");'>5</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_3 --> <div id="page_4" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_2");'>2</a></li> <li><a href="#" onclick='return showDiv("page_3");'>3</a></li> <li class="active"><span>4</span></li> <li><a href="#" onclick='return showDiv("page_5");'>5</a></li> <li><a href="#" onclick='return showDiv("page_6");'>6</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="61"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=conventional+AND+theory&pg=7&id=ED552243','ERIC'); return false;" href="http://eric.ed.gov/?q=conventional+AND+theory&pg=7&id=ED552243"><span id="translatedtitle">Examining Parent <span class="hlt">Involvement</span> Activities in Two Immigrant-<span class="hlt">Impacted</span> Schools: A Comparative Case Study</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Marquez, Amalia</p> <p>2012-01-01</p> <p>K-12 schools with large immigrant populations face a myriad of challenges, including low academic achievement and high dropout rates of Latino students. Parental <span class="hlt">involvement</span> is a practical strategy in positively influencing student outcomes along the K-12 continuum. To this end, it is essential that immigrant <span class="hlt">impacted</span> schools work together with…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=capital+AND+structure+AND+theory&pg=6&id=ED524414','ERIC'); return false;" href="http://eric.ed.gov/?q=capital+AND+structure+AND+theory&pg=6&id=ED524414"><span id="translatedtitle">Parent's Perception of Barriers that <span class="hlt">Impact</span> Parent <span class="hlt">Involvement</span> in Capital School District's Central Middle School</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Paylor, Raymond L.</p> <p>2011-01-01</p> <p>Interest in the perception of barriers that <span class="hlt">impact</span> parents' <span class="hlt">involvement</span> in Central Middle Schools' Parent Teacher Organization was a result of the low P T O membership rolls. Some educational research supports that socio-economic status, family values toward education, race, and relationship to students are factors that present barriers to parent…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('https://www.gpo.gov/fdsys/pkg/CFR-2011-title18-vol1/pdf/CFR-2011-title18-vol1-sec33-3.pdf','CFR2011'); return false;" href="https://www.gpo.gov/fdsys/pkg/CFR-2011-title18-vol1/pdf/CFR-2011-title18-vol1-sec33-3.pdf"><span id="translatedtitle">18 CFR 33.3 - Additional information requirements for applications <span class="hlt">involving</span> horizontal competitive <span class="hlt">impacts</span>.</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collectionCfr.action?selectedYearFrom=2011&page.go=Go">Code of Federal Regulations, 2011 CFR</a></p> <p></p> <p>2011-04-01</p> <p>... the horizontal Competitive Analysis Screen. (3) The applicant may use a computer model to complete one... requirements for applications <span class="hlt">involving</span> horizontal competitive <span class="hlt">impacts</span>. 33.3 Section 33.3 Conservation of Power... FEDERAL POWER ACT APPLICATIONS UNDER FEDERAL POWER ACT SECTION 203 § 33.3 Additional...</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('https://www.gpo.gov/fdsys/pkg/CFR-2010-title18-vol1/pdf/CFR-2010-title18-vol1-sec33-3.pdf','CFR'); return false;" href="https://www.gpo.gov/fdsys/pkg/CFR-2010-title18-vol1/pdf/CFR-2010-title18-vol1-sec33-3.pdf"><span id="translatedtitle">18 CFR 33.3 - Additional information requirements for applications <span class="hlt">involving</span> horizontal competitive <span class="hlt">impacts</span>.</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collectionCfr.action?selectedYearFrom=2010&page.go=Go">Code of Federal Regulations, 2010 CFR</a></p> <p></p> <p>2010-04-01</p> <p>... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Additional information requirements for applications <span class="hlt">involving</span> horizontal competitive <span class="hlt">impacts</span>. 33.3 Section 33.3 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT APPLICATIONS...</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/19870014065','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/19870014065"><span id="translatedtitle">Centrifuge <span class="hlt">impact</span> cratering experiments: Scaling laws for non-<span class="hlt">porous</span> targets</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Schmidt, Robert M.</p> <p>1987-01-01</p> <p>This research is a continuation of an ongoing program whose objective is to perform experiments and to develop scaling relationships for large body <span class="hlt">impacts</span> onto planetary surfaces. The development of the centrifuge technique has been pioneered by the present investigator and is used to provide experimental data for actual target materials of interest. With both powder and gas guns mounted on a rotor arm, it is possible to match various dimensionless similarity parameters, which have been shown to govern the behavior of large scale <span class="hlt">impacts</span>. Current work is directed toward the determination of scaling estimates for nonporous targets. The results are presented in summary form.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/10129551','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/10129551"><span id="translatedtitle">Proposed Tenaska Washington II Generation Project : Final Environmental <span class="hlt">Impact</span> Statement. Volume 2: Public <span class="hlt">Involvement</span>.</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>United States. Bonneville Power Administration.</p> <p>1994-01-01</p> <p>In regard to the proposed Tenaska Washington II Generation Project, the goal of the Bonneville Power Administration`s (BPA) Environmental <span class="hlt">Impact</span> Statement (EIS) public <span class="hlt">involvement</span> process is to determine the issues to be examined and pertinent analyses to be conducted and to solicit comments on the content and quality of information presented in the Draft Environmental <span class="hlt">Impact</span> Statement (DEIS). Comments and questions are solicited from the public and government agencies during the scoping process and during the comment period and public hearing on the DEIS, to find out what is of most concern to them. The end product of the public <span class="hlt">involvement</span> process is the Comment Report which follows in part of this volume on Public <span class="hlt">Involvement</span>.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2009M%26PS...44.1877J','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2009M%26PS...44.1877J"><span id="translatedtitle">The formation of the Baptistina family by catastrophic disruption: <span class="hlt">Porous</span> versus non-<span class="hlt">porous</span> parent body</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Jutzi, M.; Michel, P.; Benz, W.; Richardson, D. C.</p> <p>2009-01-01</p> <p>In this paper, we present numerical simulations aimed at reproducing the Baptistina family based on its properties estimated by observations. A previous study by Bottke et al. (2007) indicated that this family is probably at the origin of the K/T impactor, is linked to the CM meteorites and was produced by the disruption of a parent body 170 km in size due to the head-on <span class="hlt">impact</span> of a projectile 60 km in size at 3 km s-1. This estimate was based on simulations of fragmentation of non-<span class="hlt">porous</span> materials, while the family was assumed to be of C taxonomic type, which is generally interpreted as being formed from a <span class="hlt">porous</span> body. Using both a model of fragmentation of non-<span class="hlt">porous</span> materials, and a model that we developed recently for <span class="hlt">porous</span> ones, we performed numerical simulations of disruptions aimed at reproducing this family and at analyzing the differences in the outcome between those two models. Our results show that a reasonable match to the estimated size distribution of the real family is produced from the disruption of a <span class="hlt">porous</span> parent body by the head-on <span class="hlt">impact</span> of a projectile 54 km in size at 3 km s-1. Thus, our simulations with a model consistent with the assumed dark type of the family requires a smaller projectile than previously estimated, but the difference remains small enough to not affect the proposed scenario of this family history. We then find that the break-up of a <span class="hlt">porous</span> body leads to different outcomes than the disruption of a non-<span class="hlt">porous</span> one. The real properties of the Baptistina family still contain large uncertainties, and it remains possible that its formation did not <span class="hlt">involve</span> the proposed <span class="hlt">impact</span> conditions. However, the simulations presented here already show some range of outcomes and once the real properties are better constrained, it will be easy to check whether one of them provides a good match.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/21802252','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/21802252"><span id="translatedtitle">A preclinical study of stem subsidence and graft incorporation after femoral <span class="hlt">impaction</span> grafting using <span class="hlt">porous</span> hydroxyapatite as a bone graft extender.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Howie, Donald W; McGee, Margaret A; Callary, Stuart A; Carbone, Angelo; Stamenkov, Roumen B; Bruce, Warrick J; Findlay, David M</p> <p>2011-10-01</p> <p>This preclinical in vivo screening study compared bone graft incorporation and stem subsidence in cemented hemiarthroplasty after femoral <span class="hlt">impaction</span> bone grafting with either morselized allograft bone (n = 5, control group) or a 1:1 mix of allograft and <span class="hlt">porous</span> hydroxyapatite ceramics (HA) granules (n = 5, HA group). At 14 weeks, there was excellent bone graft incorporation by bone, and the stems were well fixed in both groups. The median subsidence at the cement-bone interface, measured using radiostereometric analysis, was 0.14 and 0.93 mm in the control and HA groups, respectively. The comparable histologic results between groups and good stem fixation in this study support the conduct of a larger scale investigation of the use of <span class="hlt">porous</span> HA in femoral <span class="hlt">impaction</span> bone grafting at revision hip arthroplasty. PMID:21802252</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4216291','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4216291"><span id="translatedtitle">The <span class="hlt">impact</span> of resident <span class="hlt">involvement</span> in minimally-invasive urologic oncology procedures</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Ruhotina, Nedim; Dagenais, Julien; Gandaglia, Giorgio; Sood, Akshay; Abdollah, Firas; Chang, Steven L.; Leow, Jeffrey J.; Olugbade, Kola; Rai, Arun; Sammon, Jesse D.; Schmid, Marianne; Varda, Briony; Zorn, Kevin C.; Menon, Mani; Kibel, Adam S.; Trinh, Quoc-Dien</p> <p>2014-01-01</p> <p>Introduction: Robotic and laparoscopic surgical training is an integral part of resident education in urology, yet the effect of resident <span class="hlt">involvement</span> on outcomes of minimally-invasive urologic procedures remains largely unknown. We assess the <span class="hlt">impact</span> of resident participation on surgical outcomes using a large multi-institutional prospective database. Methods: Relying on the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) Participant User Files (2005–2011), we abstracted the 3 most frequently performed minimally-invasive urologic oncology procedures. These included radical prostatectomy, radical nephrectomy and partial nephrectomy. Multivariable logistic regression models were constructed to assess the <span class="hlt">impact</span> of trainee <span class="hlt">involvement</span> (PGY 1–2: junior, PGY 3–4: senior, PGY ≥5: chief) versus attending-only on operative time, length-of-stay, 30-day complication, reoperation and readmission rates. Results: A total of 5459 minimally-invasive radical prostatectomies, 1740 minimally-invasive radical nephrectomies and 786 minimally-invasive partial nephrectomies were performed during the study period, for which data on resident surgeon <span class="hlt">involvement</span> was available. In multivariable analyses, resident <span class="hlt">involvement</span> was not associated with increased odds of overall complications, reoperation, or readmission rates for minimally-invasive prostatectomy, radical and partial nephrectomy. However, operative time was prolonged when residents were <span class="hlt">involved</span> irrespective of the type of procedure. Length-of-stay was decreased with senior resident <span class="hlt">involvement</span> in minimally-invasive partial nephrectomies (odds ratio [OR] 0.49, p = 0.04) and prostatectomies (OR 0.68, p = 0.01). The major limitations of this study include its retrospective observational design, inability to adjust for the case complexity and surgeon/hospital characteristics, and the lack of information regarding the minimally-invasive approach utilized (whether robotic or laparoscopic</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2011AIPC.1330...13S','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2011AIPC.1330...13S"><span id="translatedtitle">Perspectives on <span class="hlt">Porous</span> Media MR in Clinical MRI</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Sigmund, E. E.</p> <p>2011-03-01</p> <p>Many goals and challenges of research in natural or synthetic <span class="hlt">porous</span> media are mirrored in quantitative medical MRI. This review will describe examples where MR techniques used in <span class="hlt">porous</span> media (particularly diffusion-weighted imaging (DWI)) are applied to physiological pathologies. Tissue microstructure is one area with great overlap with <span class="hlt">porous</span> media science. Diffusion-weighting (esp. in neurological tissue) has motivated models with explicit physical dimensions, statistical parameters, empirical descriptors, or hybrids thereof. Another clinically relevant microscopic process is active flow. Renal (kidney) tissue possesses significant active vascular / tubular transport that manifests as "pseudodiffusion." Cancerous lesions <span class="hlt">involve</span> anomalies in both structure and flow. The tools of magnetic resonance and their interpretation in <span class="hlt">porous</span> media has had great <span class="hlt">impact</span> on clinical MRI, and continued cross-fertilization of ideas can only enhance the progress of both fields.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4154307','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4154307"><span id="translatedtitle">Proteomic Analysis of Serum Opsonins <span class="hlt">Impacting</span> Biodistribution and Cellular Association of <span class="hlt">Porous</span> Silicon Microparticles</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Serda, Rita E.; Blanco, Elvin; Mack, Aaron; Stafford, Susan J.; Amra, Sarah; Li, Qingpo; van de Ven, Anne L.; Tanaka, Takemi; Torchilin, Vladimir P.; Wiktorowicz, John E.; Ferrari, Mauro</p> <p>2014-01-01</p> <p>Mass transport of drug delivery vehicles is guided by particle properties, such as shape, composition and surface chemistry, as well as biomolecules and serum proteins that adsorb to the particle surface. In an attempt to identify serum proteins influencing cellular associations and biodistribution of intravascularly injected particles, we used two dimensional gel electrophoresis and mass spectrometry to identify proteins eluted from the surface of cationic and anionic silicon microparticles. Cationic microparticles displayed a 25-fold greater abundance of Ig light chain variable region, fibrinogen, and complement component 1 compared to their anionic counterparts. The anionic-surface favored equal accumulation of microparticles in the liver and spleen, while cationic-surfaces favored preferential accumulation in the spleen. Immunohistochemistry supported macrophage internalization of both anionic and cationic silicon microparticles in the liver, as well as evidence of association of cationic microparticles with hepatic endothelial cells. Furthermore, scanning electron micrographs supported cellular competition for cationic microparticles by endothelial cells and macrophages. Despite high macrophage content in the lungs and tumor, microparticle uptake by these cells was minimal, supporting differences in the repertoire of surface receptors expressed by tissue-specific macrophages. In summary, particle surface chemistry drives selective binding of serum components <span class="hlt">impacting</span> cellular interactions and biodistribution. PMID:21303614</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2014PhDT........93H&link_type=ABSTRACT','NASAADS'); return false;" href="http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2014PhDT........93H&link_type=ABSTRACT"><span id="translatedtitle">Science homework with video directions for parents: The <span class="hlt">impact</span> on parental <span class="hlt">involvement</span> and academic achievement</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Hooker, Kathy L.</p> <p></p> <p>The benefits of effective parental <span class="hlt">involvement</span> in education have been well documented and can be far reaching. When educators make an effort to <span class="hlt">involve</span> families, parental <span class="hlt">involvement</span> can be even more meaningful. Homework is a commonly practiced and accepted connection between school and home and affords parents many opportunities to interact with their children on educational endeavors. However, parental <span class="hlt">involvement</span> may be limited because educators do not reach out to parents, parents feel their children do not need their help, or parents are unfamiliar with the content and therefore unable to help. The purpose of this study was too develop and implement a tool to enhance parental <span class="hlt">involvement</span> and academic achievement of fourth grade science students. The tool used in this study was a weekly science video to be viewed by parents when it accompanied science homework assignments. To begin, the researcher created six science videos for parents to watch that supplemented weekly homework assignments. Consequently, the researcher set up treatment and comparison groups to test the effectiveness of the supplemental videos in terms of parental <span class="hlt">involvement</span> and academic achievement. A mixed methods approach was used to collect data from parents and students throughout the study. A combination of quantitative and qualitative data was collected throughout this study from both parents and students. Additionally, data was collected from a variety of sources including baseline, midpoint, and endpoint surveys; scores on homework assignments; and focus group interview sessions with parents and students. Data analysis revealed an overall positive <span class="hlt">impact</span> on parental <span class="hlt">involvement</span> and academic achievement when the videos were utilized.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26407854','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26407854"><span id="translatedtitle">A Research Framework for Understanding the Practical <span class="hlt">Impact</span> of Family <span class="hlt">Involvement</span> in the Juvenile Justice System: The Juvenile Justice Family <span class="hlt">Involvement</span> Model.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Walker, Sarah Cusworth; Bishop, Asia S; Pullmann, Michael D; Bauer, Grace</p> <p>2015-12-01</p> <p>Family <span class="hlt">involvement</span> is recognized as a critical element of service planning for children's mental health, welfare and education. For the juvenile justice system, however, parents' roles in this system are complex due to youths' legal rights, public safety, a process which can legally position parents as plaintiffs, and a historical legacy of blaming parents for youth indiscretions. Three recent national surveys of juvenile justice-<span class="hlt">involved</span> parents reveal that the current paradigm elicits feelings of stress, shame and distrust among parents and is likely leading to worse outcomes for youth, families and communities. While research on the <span class="hlt">impact</span> of family <span class="hlt">involvement</span> in the justice system is starting to emerge, the field currently has no organizing framework to guide a research agenda, interpret outcomes or translate findings for practitioners. We propose a research framework for family <span class="hlt">involvement</span> that is informed by a comprehensive review and content analysis of current, published arguments for family <span class="hlt">involvement</span> in juvenile justice along with a synthesis of family <span class="hlt">involvement</span> efforts in other child-serving systems. In this model, family <span class="hlt">involvement</span> is presented as an ascending, ordinal concept beginning with (1) exclusion, and moving toward climates characterized by (2) information-giving, (3) information-eliciting and (4) full, decision-making partnerships. Specific examples of how courts and facilities might align with these levels are described. Further, the model makes predictions for how <span class="hlt">involvement</span> will <span class="hlt">impact</span> outcomes at multiple levels with applications for other child-serving systems. PMID:26407854</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2012AGUFMED41D0701W','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2012AGUFMED41D0701W"><span id="translatedtitle">Measuring the Broader <span class="hlt">Impact</span> of Direct Educator <span class="hlt">Involvement</span> in Scientific Research</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Wold-Brennon, R.; Cooper, S. K.; Rabin, B.</p> <p>2012-12-01</p> <p>Just how effective is that educator who is a part of your Education and Outreach efforts? What can educators and partner scientists do to ensure Broader <span class="hlt">Impact</span> goals are being met? This poster examines initial data from middle school classrooms in Hawaii that measures student interest and performance when an educator is directly <span class="hlt">involved</span> in research projects. The project includes pre- and post-cruise student data and attempts to get at the all-important question of student <span class="hlt">impact</span>. Innovative use of media in communicating the excitement of deep sub-seafloor exploration is also highlighted. This project is a result of a collaboration between the Consortium for Ocean Leadership's Deep Earth Academy and the Center for Dark Energy Biosphere Investigations. It focuses on a series of innnovative expeditions to the seafloor at a number of subseafloor observatories installed by the JOIDES Resolution on the ridge flank of the Juan de Fuca plate.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/27609276','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/27609276"><span id="translatedtitle">Thymus <span class="hlt">involvement</span> in myasthenia gravis: Epidemiological and clinical <span class="hlt">impacts</span> of different self-tolerance breakdown mechanisms.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Karni, Arnon; Asmail, Ali; Drory, Vivian E; Kolb, Hadar; Kesler, Anat</p> <p>2016-09-15</p> <p>The reasons for the abrogation of self-immunological tolerance in patients with myasthenia gravis (MG) may be different between those with concomitant thymic hyperplasia or thymoma, and those with no evidence of thymic <span class="hlt">involvement</span>. We conducted a retrospective observational case series study to investigate the epidemiology as well as the clinical, serologic, and electromyographic (EMG) characteristics of individuals diagnosed as having MG. We found that the average age at MG onset of patients with either thymic hyperplasia or thymoma was much younger (by ~20years) than that of MG patients without thymic <span class="hlt">involvement</span>. Thymic hyperplasia was more common in females than males. There were no differences in the rates of ocular MG vs. generalized MG among those three study groups. There were also no group differences in the rates of neuromuscular junction disfunction, as observed on EMG or by the results of serology tests for acetyl choline receptor antibody. Interestingly, only patients without thymic <span class="hlt">involvement</span> had other autoimmune diseases, and most of them were females. The patients with other coexisting autoimmune disease had a similar age at MG onset as the other patients with no thymic <span class="hlt">involvement</span>. These results shed light on the <span class="hlt">impact</span> of epidemiological and clinical factors that result from different mechanisms of self-immunological tolerance breakdown that occurs in MG. PMID:27609276</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/25054173','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/25054173"><span id="translatedtitle"><span class="hlt">Impact</span> of heat and mass transfer during the transport of nitrogen in coal <span class="hlt">porous</span> media on coal mine fires.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Shi, Bobo; Zhou, Fubao</p> <p>2014-01-01</p> <p>The application of liquid nitrogen injection is an important technique in the field of coal mine fire prevention. However, the mechanism of heat and mass transfer of cryogenic nitrogen in the goaf <span class="hlt">porous</span> medium has not been well accessed. Hence, the implementation of fire prevention engineering of liquid nitrogen roughly relied on an empirical view. According to the research gap in this respect, an experimental study on the heat and mass transfer of liquid nitrogen in coal <span class="hlt">porous</span> media was proposed. Overall, the main mechanism of liquid nitrogen fire prevention technology in the coal mine is the creation of an inert and cryogenic atmosphere. Cryogenic nitrogen gas vapor cloud, heavier than the air, would cause the phenomenon of "gravity settling" in <span class="hlt">porous</span> media firstly. The cryogen could be applicable to diverse types of fires, both in the openings and in the enclosures. Implementation of liquid nitrogen open-injection technique in Yangchangwan colliery achieved the goals of fire prevention and air-cooling. Meanwhile, this study can also provide an essential reference for the research on heat and mass transfer in <span class="hlt">porous</span> media in the field of thermal physics and engineering. PMID:25054173</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4098614','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4098614"><span id="translatedtitle"><span class="hlt">Impact</span> of Heat and Mass Transfer during the Transport of Nitrogen in Coal <span class="hlt">Porous</span> Media on Coal Mine Fires</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Zhou, Fubao</p> <p>2014-01-01</p> <p>The application of liquid nitrogen injection is an important technique in the field of coal mine fire prevention. However, the mechanism of heat and mass transfer of cryogenic nitrogen in the goaf <span class="hlt">porous</span> medium has not been well accessed. Hence, the implementation of fire prevention engineering of liquid nitrogen roughly relied on an empirical view. According to the research gap in this respect, an experimental study on the heat and mass transfer of liquid nitrogen in coal <span class="hlt">porous</span> media was proposed. Overall, the main mechanism of liquid nitrogen fire prevention technology in the coal mine is the creation of an inert and cryogenic atmosphere. Cryogenic nitrogen gas vapor cloud, heavier than the air, would cause the phenomenon of “gravity settling” in <span class="hlt">porous</span> media firstly. The cryogen could be applicable to diverse types of fires, both in the openings and in the enclosures. Implementation of liquid nitrogen open-injection technique in Yangchangwan colliery achieved the goals of fire prevention and air-cooling. Meanwhile, this study can also provide an essential reference for the research on heat and mass transfer in <span class="hlt">porous</span> media in the field of thermal physics and engineering. PMID:25054173</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/960957','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/960957"><span id="translatedtitle">Seismic stress mobilization of natural colloids in a <span class="hlt">porous</span> rock</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Roberts, Peter M; Abdel-fattah, Amr I</p> <p>2008-01-01</p> <p>Stress oscillations at 26 Hz enhanced the release of natural micro-particles (colloids) in a <span class="hlt">porous</span> rock sample. Micron-scale effects were induced by meter-scale wavelengths. The results are attributed to altering the release rate coefficient for colloids trapped in pores. The rate change did not depend on colloid size and thus is not due to altering colloid-pore-wall interactions. Enhanced colloid detachment from pore walls and flushing from dead-end pores are likely mechanisms. This phenomenon could <span class="hlt">impact</span> a broad range of physical sciences <span class="hlt">involving</span> colloid dynamics and <span class="hlt">porous</span> transport.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/22390595','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/22390595"><span id="translatedtitle">Rate coefficients for dissociative attachment and resonant electron-<span class="hlt">impact</span> dissociation <span class="hlt">involving</span> vibrationally excited O{sub 2} molecules</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Laporta, V.; Celiberto, R.; Tennyson, J.</p> <p>2014-12-09</p> <p>Rate coefficients for dissociative electron attachment and electron-<span class="hlt">impact</span> dissociation processes, <span class="hlt">involving</span> vibrationally excited molecular oxygen, are presented. Analytical fits of the calculated numerical data, useful in the applications, are also provided.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4090752','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4090752"><span id="translatedtitle">Redefining the <span class="hlt">impact</span> of nutrition on breast cancer incidence: is epigenetics <span class="hlt">involved</span>?</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Teegarden, Dorothy; Romieu, Isabelle; Lelièvre, Sophie A.</p> <p>2014-01-01</p> <p>Breast cancer incidence is rising worldwide with an increase in aggressive neoplasias in young women. Possible factors <span class="hlt">involved</span> include lifestyle changes, notably diet that is known to make an <span class="hlt">impact</span> on gene transcription. However, among dietary factors, there is sufficient support for only greater body weight and alcohol consumption whereas numerous studies revealing an <span class="hlt">impact</span> of specific diets and nutrients on breast cancer risk show conflicting results. Also, little information is available from middle- and low-income countries. The diversity of gene expression profiles found in breast cancers indicates that transcription control is critical for the outcome of the disease. This suggests the need for studies on nutrients that affect epigenetic mechanisms of transcription, such as DNA methylation and post-translational modifications of histones. In the present review, a new examination of the relationship between diet and breast cancer based on transcription control is proposed in light of epidemiological, animal and clinical studies. The mechanisms underlying the <span class="hlt">impact</span> of diets on breast cancer development and factors that impede reaching clear conclusions are discussed. Understanding the interaction between nutrition and epigenetics (gene expression control via chromatin structure) is critical in light of the influence of diet during early stages of mammary gland development on breast cancer risk, suggesting a persistent effect on gene expression as shown by the influence of certain nutrients on DNA methylation. Successful development of breast cancer prevention strategies will require appropriate models, identification of biological markers for rapid assessment of preventive interventions, and coordinated worldwide research to discern the effects of diet. PMID:22853843</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_2");'>2</a></li> <li><a href="#" onclick='return showDiv("page_3");'>3</a></li> <li class="active"><span>4</span></li> <li><a href="#" onclick='return showDiv("page_5");'>5</a></li> <li><a href="#" onclick='return showDiv("page_6");'>6</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_4 --> <div id="page_5" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_3");'>3</a></li> <li><a href="#" onclick='return showDiv("page_4");'>4</a></li> <li class="active"><span>5</span></li> <li><a href="#" onclick='return showDiv("page_6");'>6</a></li> <li><a href="#" onclick='return showDiv("page_7");'>7</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="81"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2005JAP....97k3302C','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2005JAP....97k3302C"><span id="translatedtitle"><span class="hlt">Impact</span> of reductive N2/H2 plasma on <span class="hlt">porous</span> low-dielectric constant SiCOH thin films</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Cui, Hao; Carter, Richard J.; Moore, Darren L.; Peng, Hua-Gen; Gidley, David W.; Burke, Peter A.</p> <p>2005-06-01</p> <p><span class="hlt">Porous</span> low-dielectric constant (low-κ) SiCOH thin films deposited using a plasma-enhanced chemical-vapor deposition have been comprehensively characterized before and after exposure to a reactive-ion-etch-type plasma of N2 and H2 chemistry. The low-κ film studied in this work is a carbon-doped silicon oxide film with a dielectric constant (κ) of 2.5. Studies show that a top dense layer is formed as a result of significant surface film densification after exposure to N2/H2 plasma while the underlying bulk layer remains largely unchanged. The top dense layer is found to seal the <span class="hlt">porous</span> bulk SiCOH film. SiCOH films experienced significant thickness reduction, κ increase, and leakage current degradation after plasma exposure, accompanied by density increase, pore collapse, carbon depletion, and moisture content increase in the top dense layer. Both film densification and removal processes during N2/H2 plasma treatment were found to play important roles in the thickness reduction and κ increase of this <span class="hlt">porous</span> low-κ SiCOH film. A model based upon mutually limiting film densification and removal processes is proposed for the continuous thickness reduction during plasma exposure. A combination of surface film densification, thickness ratio increase of top dense layer to bulk layer, and moisture content increase results in the increase in κ value of this SiCOH film.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=sss&pg=2&id=ED517488','ERIC'); return false;" href="http://eric.ed.gov/?q=sss&pg=2&id=ED517488"><span id="translatedtitle">The Role of Student Support Services in Encouraging Student <span class="hlt">Involvement</span> and Its <span class="hlt">Impact</span> on Student Perceptions and Academic Experiences</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Kelley-Hall, Caren</p> <p>2010-01-01</p> <p>The purpose of this study was to explore the role of Student Support Services (SSS) in encouraging student <span class="hlt">involvement</span> and its <span class="hlt">impact</span> on student perceptions and academic experiences in three technical colleges in upstate South Carolina. By examining Alexander Astin's theory of student <span class="hlt">involvement</span> in the services provided by the program, a better…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3995719','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3995719"><span id="translatedtitle">Bacteria and Genes <span class="hlt">Involved</span> in Arsenic Speciation in Sediment <span class="hlt">Impacted</span> by Long-Term Gold Mining</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Costa, Patrícia S.; Scholte, Larissa L. S.; Reis, Mariana P.; Chaves, Anderson V.; Oliveira, Pollyanna L.; Itabayana, Luiza B.; Suhadolnik, Maria Luiza S.; Barbosa, Francisco A. R.; Chartone-Souza, Edmar; Nascimento, Andréa M. A.</p> <p>2014-01-01</p> <p>The bacterial community and genes <span class="hlt">involved</span> in geobiocycling of arsenic (As) from sediment <span class="hlt">impacted</span> by long-term gold mining were characterized through culture-based analysis of As-transforming bacteria and metagenomic studies of the arsC, arrA, and aioA genes. Sediment was collected from the historically gold mining <span class="hlt">impacted</span> Mina stream, located in one of the world’s largest mining regions known as the “Iron Quadrangle”. A total of 123 As-resistant bacteria were recovered from the enrichment cultures, which were phenotypically and genotypically characterized for As-transformation. A diverse As-resistant bacteria community was found through phylogenetic analyses of the 16S rRNA gene. Bacterial isolates were affiliated with Proteobacteria, Firmicutes, and Actinobacteria and were represented by 20 genera. Most were AsV-reducing (72%), whereas AsIII-oxidizing accounted for 20%. Bacteria harboring the arsC gene predominated (85%), followed by aioA (20%) and arrA (7%). Additionally, we identified two novel As-transforming genera, Thermomonas and Pannonibacter. Metagenomic analysis of arsC, aioA, and arrA sequences confirmed the presence of these genes, with arrA sequences being more closely related to uncultured organisms. Evolutionary analyses revealed high genetic similarity between some arsC and aioA sequences obtained from isolates and clone libraries, suggesting that those isolates may represent environmentally important bacteria acting in As speciation. In addition, our findings show that the diversity of arrA genes is wider than earlier described, once none arrA-OTUs were affiliated with known reference strains. Therefore, the molecular diversity of arrA genes is far from being fully explored deserving further attention. PMID:24755825</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26501893','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26501893"><span id="translatedtitle">Gatekeeping and its <span class="hlt">impact</span> on father <span class="hlt">involvement</span> among Black South Africans in rural KwaZulu-Natal.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Makusha, Tawanda; Richter, Linda</p> <p>2016-01-01</p> <p><span class="hlt">Involved</span> and caring fatherhood contributes to the health and wellbeing of children, women and men. The corollary is also true - men, women and children are affected when fathers are not <span class="hlt">involved</span> or supportive of their children. Many factors affect fathers' <span class="hlt">involvement</span>, including women's attitudes, the history and nature of the relationship between mother and father, and the cultural context. This study explores gatekeeping and its <span class="hlt">impact</span> on father <span class="hlt">involvement</span> among Black South Africans in rural KwaZulu-Natal. Among married couples, gatekeeping occurs with respect to childcare and housework through women's attempts to validate their maternal identity according to socially and culturally constructed gender roles. Among unmarried, non-resident parents, women control father-child contact and <span class="hlt">involvement</span>, with mothers and/or their families either facilitating or inhibiting father <span class="hlt">involvement</span>. In this context, we found that cultural gatekeeping had a huge <span class="hlt">impact</span> on father <span class="hlt">involvement</span>, with the non-payment of inhlawulo or lobola regulating father-child <span class="hlt">involvement</span>. In a country like South Africa, where there is high non-marital fertility and father-child non-residence, future research, parenting and family programmes should focus on strategies that encourage positive paternal <span class="hlt">involvement</span> as well as maternal and cultural support for father <span class="hlt">involvement</span>, regardless of parental relationship and residence status. PMID:26501893</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4495600','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4495600"><span id="translatedtitle">Systematic Analysis of the Genetic Variability That <span class="hlt">Impacts</span> SUMO Conjugation and Their <span class="hlt">Involvement</span> in Human Diseases</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Xu, Hao-Dong; Shi, Shao-Ping; Chen, Xiang; Qiu, Jian-Ding</p> <p>2015-01-01</p> <p>Protein function has been observed to rely on select essential sites instead of requiring all sites to be indispensable. Small ubiquitin-related modifier (SUMO) conjugation or sumoylation, which is a highly dynamic reversible process and its outcomes are extremely diverse, ranging from changes in localization to altered activity and, in some cases, stability of the modified, has shown to be especially valuable in cellular biology. Motivated by the significance of SUMO conjugation in biological processes, we report here on the first exploratory assessment whether sumoylation related genetic variability <span class="hlt">impacts</span> protein functions as well as the occurrence of diseases related to SUMO. Here, we defined the SUMOAMVR as sumoylation related amino acid variations that affect sumoylation sites or enzymes <span class="hlt">involved</span> in the process of connectivity, and categorized four types of potential SUMOAMVRs. We detected that 17.13% of amino acid variations are potential SUMOAMVRs and 4.83% of disease mutations could lead to SUMOAMVR with our system. More interestingly, the statistical analysis demonstrates that the amino acid variations that directly create new potential lysine sumoylation sites are more likely to cause diseases. It can be anticipated that our method can provide more instructive guidance to identify the mechanisms of genetic diseases. PMID:26154679</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015NatSR...510900X','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015NatSR...510900X"><span id="translatedtitle">Systematic Analysis of the Genetic Variability That <span class="hlt">Impacts</span> SUMO Conjugation and Their <span class="hlt">Involvement</span> in Human Diseases</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Xu, Hao-Dong; Shi, Shao-Ping; Chen, Xiang; Qiu, Jian-Ding</p> <p>2015-07-01</p> <p>Protein function has been observed to rely on select essential sites instead of requiring all sites to be indispensable. Small ubiquitin-related modifier (SUMO) conjugation or sumoylation, which is a highly dynamic reversible process and its outcomes are extremely diverse, ranging from changes in localization to altered activity and, in some cases, stability of the modified, has shown to be especially valuable in cellular biology. Motivated by the significance of SUMO conjugation in biological processes, we report here on the first exploratory assessment whether sumoylation related genetic variability <span class="hlt">impacts</span> protein functions as well as the occurrence of diseases related to SUMO. Here, we defined the SUMOAMVR as sumoylation related amino acid variations that affect sumoylation sites or enzymes <span class="hlt">involved</span> in the process of connectivity, and categorized four types of potential SUMOAMVRs. We detected that 17.13% of amino acid variations are potential SUMOAMVRs and 4.83% of disease mutations could lead to SUMOAMVR with our system. More interestingly, the statistical analysis demonstrates that the amino acid variations that directly create new potential lysine sumoylation sites are more likely to cause diseases. It can be anticipated that our method can provide more instructive guidance to identify the mechanisms of genetic diseases.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/27030954','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/27030954"><span id="translatedtitle">Numerical modelling of biophysicochemical effects on multispecies reactive transport in <span class="hlt">porous</span> media <span class="hlt">involving</span> Pseudomonas putida for potential microbial enhanced oil recovery application.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Sivasankar, P; Rajesh Kanna, A; Suresh Kumar, G; Gummadi, Sathyanarayana N</p> <p>2016-07-01</p> <p>pH and resident time of injected slug plays a critical role in characterizing the reservoir for potential microbial enhanced oil recovery (MEOR) application. To investigate MEOR processes, a multispecies (microbes-nutrients) reactive transport model in <span class="hlt">porous</span> media was developed by coupling kinetic and transport model. The present work differs from earlier works by explicitly determining parametric values required for kinetic model by experimental investigations using Pseudomonas putida at different pH conditions and subsequently performing sensitivity analysis of pH, resident time and water saturation on concentrations of microbes, nutrients and biosurfactant within reservoir. The results suggest that nutrient utilization and biosurfactant production are found to be maximum at pH 8 and 7.5 respectively. It is also found that the sucrose and biosurfactant concentrations are highly sensitive to pH rather than reservoir microbial concentration, while at larger resident time and water saturation, the microbial and nutrient concentrations were lesser due to enhanced dispersion. PMID:27030954</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/872975','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/872975"><span id="translatedtitle">Rigid <span class="hlt">porous</span> filter</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Chiang, Ta-Kuan; Straub, Douglas L.; Dennis, Richard A.</p> <p>2000-01-01</p> <p>The present invention <span class="hlt">involves</span> a <span class="hlt">porous</span> rigid filter including a plurality of concentric filtration elements having internal flow passages and forming external flow passages there between. The present invention also <span class="hlt">involves</span> a pressure vessel containing the filter for the removal of particulates from high pressure particulate containing gases, and further <span class="hlt">involves</span> a method for using the filter to remove such particulates. The present filter has the advantage of requiring fewer filter elements due to the high surface area-to-volume ratio provided by the filter, requires a reduced pressure vessel size, and exhibits enhanced mechanical design properties, improved cleaning properties, configuration options, modularity and ease of fabrication.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=study+AND+home+AND+affect+AND+student&pg=4&id=ED525317','ERIC'); return false;" href="http://eric.ed.gov/?q=study+AND+home+AND+affect+AND+student&pg=4&id=ED525317"><span id="translatedtitle">The <span class="hlt">Impact</span> of a Family <span class="hlt">Involvement</span> Program on Achievement in First Grade Students</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Nagy, Kerri Ann</p> <p>2011-01-01</p> <p>Given expectations for higher standards teachers must find ways to improve family <span class="hlt">involvement</span> and build a community atmosphere within the classroom. The purpose of this mixed methods study was to examine the implementation of a family <span class="hlt">involvement</span> program into a first grade classroom. Epstein's six types of parent <span class="hlt">involvement</span> formed the theoretical…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=Endpoint&pg=5&id=ED557531','ERIC'); return false;" href="http://eric.ed.gov/?q=Endpoint&pg=5&id=ED557531"><span id="translatedtitle">Science Homework with Video Directions for Parents: The <span class="hlt">Impact</span> on Parental <span class="hlt">Involvement</span> and Academic Achievement</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Hooker, Kathy L.</p> <p>2014-01-01</p> <p>The benefits of effective parental <span class="hlt">involvement</span> in education have been well documented and can be far reaching. When educators make an effort to <span class="hlt">involve</span> families, parental <span class="hlt">involvement</span> can be even more meaningful. Homework is a commonly practiced and accepted connection between school and home and affords parents many opportunities to interact with…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=student+AND+academic+AND+performance+AND+parenting&pg=2&id=ED558305','ERIC'); return false;" href="http://eric.ed.gov/?q=student+AND+academic+AND+performance+AND+parenting&pg=2&id=ED558305"><span id="translatedtitle">The <span class="hlt">Impact</span> of Elementary Teachers' Perceptions and Practices to Promote Parental <span class="hlt">Involvement</span></span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Lattimore, Myra T.</p> <p>2013-01-01</p> <p>Parental <span class="hlt">involvement</span>, defined as the educational engagement of parents in activities such as <span class="hlt">involvement</span> in PTA, volunteering, and Science/Math night, promotes academic success. Lack of parental <span class="hlt">involvement</span> is associated with lower academic performance. The purpose of this correlational study was to determine the relationship between parent…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=leadership+AND+volunteer&pg=4&id=ED546183','ERIC'); return false;" href="http://eric.ed.gov/?q=leadership+AND+volunteer&pg=4&id=ED546183"><span id="translatedtitle">The <span class="hlt">Impact</span> of <span class="hlt">Involvement</span> in Mortar Board Senior Honor Society on Lifelong Views of Civic Engagement and Leadership</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Turner, Daniel James</p> <p>2012-01-01</p> <p>This study examines the <span class="hlt">impact</span> that <span class="hlt">involvement</span> in Mortar Board National Senior Honor Society has on lifelong views of civic engagement and leadership. Mortar Board Senior Honor Society is a collegiate honor society established in 1918 that recognizes students for their outstanding contributions to their college or university community in the…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=work+AND+life&pg=6&id=EJ1063771','ERIC'); return false;" href="http://eric.ed.gov/?q=work+AND+life&pg=6&id=EJ1063771"><span id="translatedtitle">Who Can Help Working Students? The <span class="hlt">Impact</span> of Graduate School <span class="hlt">Involvement</span> and Social Support on School-Work Facilitation</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Wyland, Rebecca L.; Winkel, Doan E.; Lester, Scott W.; Hanson-Rasmussen, Nancy</p> <p>2015-01-01</p> <p>A significant number of employees attend graduate school, and the <span class="hlt">impact</span> of the student role may be substantial and valuable to the work-life literature. In this study the authors examine whether psychological <span class="hlt">involvement</span> in graduate school increases school-work facilitation. Further, they suggest that employers and graduate schools can provide…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=69633&keyword=plasmid&actType=&TIMSType=+&TIMSSubTypeID=&DEID=&epaNumber=&ntisID=&archiveStatus=Both&ombCat=Any&dateBeginCreated=&dateEndCreated=&dateBeginPublishedPresented=&dateEndPublishedPresented=&dateBeginUpdated=&dateEndUpdated=&dateBeginCompleted=&dateEndCompleted=&personID=&role=Any&journalID=&publisherID=&sortBy=revisionDate&count=50&CFID=65358626&CFTOKEN=79880610','EPA-EIMS'); return false;" href="http://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=69633&keyword=plasmid&actType=&TIMSType=+&TIMSSubTypeID=&DEID=&epaNumber=&ntisID=&archiveStatus=Both&ombCat=Any&dateBeginCreated=&dateEndCreated=&dateBeginPublishedPresented=&dateEndPublishedPresented=&dateBeginUpdated=&dateEndUpdated=&dateBeginCompleted=&dateEndCompleted=&personID=&role=Any&journalID=&publisherID=&sortBy=revisionDate&count=50&CFID=65358626&CFTOKEN=79880610"><span id="translatedtitle">BIODEGRADATION DURING CONTAMINANT TRANSPORT IN <span class="hlt">POROUS</span> MEDIA. 4. <span class="hlt">IMPACT</span> OF MICROBIAL LAG AND BACTERIAL CELL GROWTH. (R825415)</span></a></p> <p><a target="_blank" href="http://oaspub.epa.gov/eims/query.page">EPA Science Inventory</a></p> <p></p> <p></p> <p><h2>Abstract</h2><p>Miscible-displacement experiments were conducted to examine the <span class="hlt">impact</span> of microbial lag and bacterial cell growth on the transport of salicylate, a model hydrocarbon compound. The <span class="hlt">impacts</span> of these processes were examined separately, as well as jointly, to dete...</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/25325703','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/25325703"><span id="translatedtitle"><span class="hlt">Impact</span> of redox-active polymer molecular weight on the electrochemical properties and transport across <span class="hlt">porous</span> separators in nonaqueous solvents.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Nagarjuna, Gavvalapalli; Hui, Jingshu; Cheng, Kevin J; Lichtenstein, Timothy; Shen, Mei; Moore, Jeffrey S; Rodríguez-López, Joaquín</p> <p>2014-11-19</p> <p>Enhancing the ionic conductivity across the electrolyte separator in nonaqueous redox flow batteries (NRFBs) is essential for improving their performance and enabling their widespread utilization. Separating redox-active species by size exclusion without greatly impeding the transport of supporting electrolyte is a potentially powerful alternative to the use of poorly performing ion-exchange membranes. However, this strategy has not been explored possibly due to the lack of suitable redox-active species that are easily varied in size, remain highly soluble, and exhibit good electrochemical properties. Here we report the synthesis, electrochemical characterization, and transport properties of redox-active poly(vinylbenzyl ethylviologen) (RAPs) with molecular weights between 21 and 318 kDa. The RAPs reported here show very good solubility (up to at least 2.0 M) in acetonitrile and propylene carbonate. Ultramicroelectrode voltammetry reveals facile electron transfer with E1/2 ∼ -0.7 V vs Ag/Ag(+)(0.1 M) for the viologen 2+/+ reduction at concentrations as high as 1.0 M in acetonitrile. Controlled potential bulk electrolysis indicates that 94-99% of the nominal charge on different RAPs is accessible and that the electrolysis products are stable upon cycling. The dependence of the diffusion coefficient on molecular weight suggests the adequacy of the Stokes-Einstein formalism to describe RAPs. The size-selective transport properties of LiBF4 and RAPs across commercial off-the-shelf (COTS) separators such as Celgard 2400 and Celgard 2325 were tested. COTS <span class="hlt">porous</span> separators show ca. 70 times higher selectivity for charge balancing ions (Li(+)BF4(-)) compared to high molecular weight RAPs. RAPs rejection across these separators showed a strong dependence on polymer molecular weight as well as the pore size; the rejection increased with both increasing polymer molecular weight and reduction in pore size. Significant rejection was observed even for rpoly/rpore (polymer</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015WRR....51.9094G','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015WRR....51.9094G"><span id="translatedtitle">The <span class="hlt">impact</span> of pore structure and surface roughness on capillary trapping for 2-D and 3-D <span class="hlt">porous</span> media: Comparison with percolation theory</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Geistlinger, Helmut; Ataei-Dadavi, Iman; Mohammadian, Sadjad; Vogel, Hans-Jörg</p> <p>2015-11-01</p> <p>We study the <span class="hlt">impact</span> of pore structure and surface roughness on capillary trapping of nonwetting gas phase during imbibition with water for capillary numbers between 10-7 and 5 × 10-5, within glass beads, natural sands, glass beads monolayers, and 2-D micromodels. The materials exhibit different roughness of the pore-solid interface. We found that glass beads and natural sands, which exhibit nearly the same grain size distribution, pore size distribution, and connectivity, showed a significant difference of the trapped gas phase of about 15%. This difference can be explained by the microstructure of the pore-solid interface. Based on the visualization of the trapping dynamics within glass beads monolayers and 2-D micromodels, we could show that bypass trapping controls the trapping process in glass beads monolayers, while snap-off trapping controls the trapping process in 2-D micromodels. We conclude that these different trapping processes are the reason for the different trapping efficiency, when comparing glass beads packs with natural sand packs. Moreover, for small capillary numbers of 10-6, we found that the cluster size distribution of trapped gas clusters of all 2-D and 3-D <span class="hlt">porous</span> media can be described by a universal power law behavior predicted from percolation theory. This cannot be expected a priori for 2-D <span class="hlt">porous</span> media, because bicontinuity of the two bulk phases is violated. Obviously, bicontinuity holds for the thin-film water phase and the bulk gas phase. The snap-off trapping process leads to ordinary bond percolation in front of the advancing bulk water phase and is the reason for the observed universal power law behavior in 2-D micromodels with rough surfaces.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('https://www.gpo.gov/fdsys/pkg/FR-2010-11-15/pdf/2010-28689.pdf','FEDREG'); return false;" href="https://www.gpo.gov/fdsys/pkg/FR-2010-11-15/pdf/2010-28689.pdf"><span id="translatedtitle">75 FR 69630 - <span class="hlt">Impact</span> of Implementation of the Chemical Weapons Convention on Commercial Activities <span class="hlt">Involving</span>...</span></a></p> <p><a target="_blank" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013, 2014</a></p> <p></p> <p>2010-11-15</p> <p>... Bureau of Industry and Security <span class="hlt">Impact</span> of Implementation of the Chemical Weapons Convention on Commercial..., Through Calendar Year 2010 AGENCY: Bureau of Industry and Security, Commerce. ACTION: Notice of inquiry. SUMMARY: The Bureau of Industry and Security (BIS) is seeking public comments on the <span class="hlt">impact</span>...</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=transportation+AND+survey&pg=6&id=ED519258','ERIC'); return false;" href="http://eric.ed.gov/?q=transportation+AND+survey&pg=6&id=ED519258"><span id="translatedtitle">Factors that <span class="hlt">Impact</span> West Virginia Head Start Parental <span class="hlt">Involvement</span> in Early Literacy</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Clausell, Arlene Midget</p> <p>2010-01-01</p> <p>The research problem is: Many parents are not <span class="hlt">involved</span> in their children's early literacy education. Some Head Start parents experience issues that keep them from teaching their children early literacy skills. The research questions were: What are the factors for parental <span class="hlt">involvement</span> in the support of early literacy skill development for their…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://files.eric.ed.gov/fulltext/ED481644.pdf','ERIC'); return false;" href="http://files.eric.ed.gov/fulltext/ED481644.pdf"><span id="translatedtitle">Bringing the Mountain to Mohammed: Parent <span class="hlt">Involvement</span> in Migrant-<span class="hlt">Impacted</span> Schools.</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Lopez, Gerardo R.</p> <p></p> <p>Migrant students have a host of factors working against their chances of success in school. In the search for ways to counter these risk factors, educators have recognized the value of parent <span class="hlt">involvement</span>. In addition to its effects on student learning and achievement, parent <span class="hlt">involvement</span> also strengthens school accountability and gives historically…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=study+AND+crayons&pg=2&id=ED160231','ERIC'); return false;" href="http://eric.ed.gov/?q=study+AND+crayons&pg=2&id=ED160231"><span id="translatedtitle">A Study of the <span class="hlt">Impact</span> of Specially Designed Settings on Children's <span class="hlt">Involvement</span>: A Pilot Project.</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Berman, Louise M.; And Others</p> <p></p> <p>The purpose of this pilot project was to determine whether <span class="hlt">involvement</span>, as described by verbal and nonverbal indicators, increased as children worked at language arts learning centers characterized by increasing possibilities for <span class="hlt">involvement</span>. Twelve first graders, randomly selected from an open space school, were each observed at three learning…</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_3");'>3</a></li> <li><a href="#" onclick='return showDiv("page_4");'>4</a></li> <li class="active"><span>5</span></li> <li><a href="#" onclick='return showDiv("page_6");'>6</a></li> <li><a href="#" onclick='return showDiv("page_7");'>7</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_5 --> <div id="page_6" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_4");'>4</a></li> <li><a href="#" onclick='return showDiv("page_5");'>5</a></li> <li class="active"><span>6</span></li> <li><a href="#" onclick='return showDiv("page_7");'>7</a></li> <li><a href="#" onclick='return showDiv("page_8");'>8</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="101"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4776699','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4776699"><span id="translatedtitle"><span class="hlt">Impact</span> on the individual: what do patients and carers gain, lose and expect from being <span class="hlt">involved</span> in research?</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Ashcroft, Joanne; Wykes, Til; Taylor, Joseph; Crowther, Adam; Szmukler, George</p> <p>2016-01-01</p> <p>Abstract Background: Study feasibility and deliverability can benefit from <span class="hlt">involving</span> patients and carers in the research process, known as patient and public <span class="hlt">involvement</span> (PPI). There is less evidence on the experiences of patients and carers themselves and we require more information across a range of studies, health conditions and research stages. Aims: This study explored how patients and carers in eight diagnostic research specialties have been <span class="hlt">involved</span> in research, their motivations and the <span class="hlt">impact</span> <span class="hlt">involvement</span> had on them. Method: 143 patients and carers across the Clinical Research Network (CRN) responded to an online semi-structured questionnaire (developed using participatory methodology). Quantitative and qualitative data were analysed. Results: A range of benefits were reported, including providing a life focus and an improved relationship with illness. Less positive experiences regarding time and money and lack of acknowledgement were also reported, along with suggestions for improvement. Conclusions: PPI confers many benefits on patients and carers which could increase PPI recruitment if made explicit. More <span class="hlt">involvement</span> in study recruitment and dissemination would increase the effectiveness of PPI input. <span class="hlt">Involving</span> a more varied socioeconomic demographic and at an earlier stage is vital. Financial support for lower earners and greater feedback following <span class="hlt">involvement</span> should also be explored. PMID:26733079</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2016Icar..268..102M&link_type=ABSTRACT','NASAADS'); return false;" href="http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2016Icar..268..102M&link_type=ABSTRACT"><span id="translatedtitle">Survivability of copper projectiles during hypervelocity <span class="hlt">impacts</span> in <span class="hlt">porous</span> ice: A laboratory investigation of the survivability of projectiles <span class="hlt">impacting</span> comets or other bodies</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>McDermott, K. H.; Price, M. C.; Cole, M.; Burchell, M. J.</p> <p>2016-04-01</p> <p>During hypervelocity <span class="hlt">impact</span> (>a few km s-1) the resulting cratering and/or disruption of the target body often outweighs interest on the outcome of the projectile material, with the majority of projectiles assumed to be vaporised. However, on Earth, fragments, often metallic, have been recovered from <span class="hlt">impact</span> sites, meaning that metallic projectile fragments may survive a hypervelocity <span class="hlt">impact</span> and still exist within the wall, floor and/or ejecta of the <span class="hlt">impact</span> crater post-<span class="hlt">impact</span>. The discovery of the remnant impactor composition within the craters of asteroids, planets and comets could provide further information regarding the <span class="hlt">impact</span> history of a body. Accordingly, we study in the laboratory the survivability of 1 and 2 mm diameter copper projectiles fired onto ice at speeds between 1.00 and 7.05 km s-1. The projectile was recovered intact at speeds up to 1.50 km s-1, with no ductile deformation, but some surface pitting was observed. At 2.39 km s-1, the projectile showed increasing ductile deformation and broke into two parts. Above velocities of 2.60 km s-1 increasing numbers of projectile fragments were identified post <span class="hlt">impact</span>, with the mean size of the fragments decreasing with increasing <span class="hlt">impact</span> velocity. The decrease in size also corresponds with an increase in the number of projectile fragments recovered, as with increasing shock pressure the projectile material is more intensely disrupted, producing smaller and more numerous fragments. The damage to the projectile is divided into four classes with increasing speed and shock pressure: (1) minimal damage, (2) ductile deformation, start of break up, (3) increasing fragmentation, and (4) complete fragmentation. The implications of such behaviour is considered for specific examples of <span class="hlt">impacts</span> of metallic impactors onto Solar System bodies, including LCROSS <span class="hlt">impacting</span> the Moon, iron meteorites onto Mars and NASA's "Deep <span class="hlt">Impact</span>" mission where a spacecraft <span class="hlt">impacted</span> a comet.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4591048','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4591048"><span id="translatedtitle">Positive Social <span class="hlt">Impacts</span> Related to Participation in an HIV Prevention Trial <span class="hlt">Involving</span> People Who Inject Drugs</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Sugarman, Jeremy; Stalter, Randy; Bokoch, Kevin; Liu, Ting-Yuan; Donnell, Deborah</p> <p>2015-01-01</p> <p>Although attention has focused on whether participants actually derive better medical outcomes in research, the social benefits experienced in research have not been systematically examined. At regular follow-up visits during a phase III randomized trial assessing the safety and efficacy of a long-term versus a short-term drug treatment intervention in decreasing HIV transmission and mortality conducted in China and Thailand, participants identified research-related negative and positive social <span class="hlt">impacts</span> (PSIs). Open-ended PSI responses were coded using standard qualitative techniques. Among 1025 participants, only 4 reported a negative social <span class="hlt">impact</span>; however, 77% reported at least one PSI over the 104 week follow-up period. Given the high prevalence of PSIs we observed, future research should embed assessments of negative and positive social <span class="hlt">impacts</span> experienced by participants in research not only to ensure their well-being, but also to inform policy and conceptual work related to research ethics. PMID:26247080</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4235963','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4235963"><span id="translatedtitle">The Differential <span class="hlt">Impact</span> of Early Father and Mother <span class="hlt">Involvement</span> on Later Student Achievement</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>McBride, Brent A.; Dyer, W. Justin; Liu, Ying; Brown, Geoffrey L.; Hong, Sungjin</p> <p>2014-01-01</p> <p>The purpose of this exploratory study was to examine the direct and indirect effects of early parenting on later parental school <span class="hlt">involvement</span> and student achievement. The sample, pulled from the first and second waves of the Panel Study of Income Dynamics – Child Development Supplement data set, consisted of 390 children ages 2–5 at time 1 and their families. Fathers’ and mothers’ participation in five dimensions of early parenting behaviors were assessed at time 1, while later parental school <span class="hlt">involvement</span> and student achievement were assessed at time 2. Although early paternal and maternal parenting behaviors were not directly related to later student achievement, differences were revealed in the pattern of relationships between early parenting and later parental school <span class="hlt">involvement</span> for fathers and mothers. In addition, fathers’ later school <span class="hlt">involvement</span> was found to be negatively related to student achievement while maternal school <span class="hlt">involvement</span> was found to be positively related to student achievement. These findings provide partial support for the hypothesized differential relationship between fathers’ and mothers’ early parenting and later student achievement. PMID:25414521</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015AGUFMNS31A1954T','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015AGUFMNS31A1954T"><span id="translatedtitle">A feasible research of rock porosity and water saturation <span class="hlt">impact</span> on audio-magnetotelluric propagation in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Tian, Z.; Liu, J.</p> <p>2015-12-01</p> <p>Abstract: Although various factors have <span class="hlt">impact</span> on the resistivity of subsurface rock formation, in depth range of general electrical prospecting, the conductive actions of rocks are basically realized relying on the aqueous solutions filled in the pores. Therefore, quantitatively studying the <span class="hlt">impact</span> of the water level on rock resistivity is important to analyze and classify strata, investigate the underground structures. In this research, we proposed a feasible research on building electric property rock formation models with different porosity and water saturation based on theories of two-phase media. The propagation of audio-magnetotelluric (AMT) waves is simulated by using finite-difference (FD) scheme, and theoretic resistivity distribution is calculated on account of the response of AMT. According to a sequence of synthetic examples, through comparing and analyzing the simulated results with various porosity and water saturation respectively, we discuss the <span class="hlt">impact</span> on layers resistivity while porosity and water saturation of rock stratum are changing. The results shows the extent that the mentioned factors can have <span class="hlt">impact</span> on the propagation of AMT waves. Key words: audio-magnetotelluric modeling, two-phase media, porosity, water saturation, finite-difference</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3755281','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3755281"><span id="translatedtitle"><span class="hlt">Porous</span> Carbon Nanoparticle Networks with Tunable Absorbability</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Dai, Wei; Kim, Seong Jin; Seong, Won-Kyeong; Kim, Sang Hoon; Lee, Kwang-Ryeol; Kim, Ho-Young; Moon, Myoung-Woon</p> <p>2013-01-01</p> <p><span class="hlt">Porous</span> carbon materials with high specific surface areas and superhydrophobicity have attracted much research interest due to their potential application in the areas of water filtration, water/oil separation, and oil-spill cleanup. Most reported superhydrophobic <span class="hlt">porous</span> carbon materials are fabricated by complex processes <span class="hlt">involving</span> the use of catalysts and high temperatures but with low throughput. Here, we present a facile single-step method for fabricating <span class="hlt">porous</span> carbon nanoparticle (CNP) networks with selective absorbability for water and oils via the glow discharge of hydrocarbon plasma without a catalyst at room temperature. <span class="hlt">Porous</span> CNP networks were grown by the continuous deposition of CNPs at a relatively high deposition pressure. By varying the fluorine content, the <span class="hlt">porous</span> CNP networks exhibited tunable repellence against liquids with various degrees of surface tension. These <span class="hlt">porous</span> CNP networks could be applied for the separation of not only water/oil mixtures but also mixtures of liquids with different surface tension levels. PMID:23982181</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/25431978','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/25431978"><span id="translatedtitle">Family <span class="hlt">involvement</span> in music <span class="hlt">impacts</span> participation of children with cochlear implants in music education and music activities.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Driscoll, Virginia; Gfeller, Kate; Tan, Xueli; See, Rachel L; Cheng, Hsin-Yi; Kanemitsu, Mikiko</p> <p>2015-05-01</p> <p>Objective Children with cochlear implants (CIs) participate in musical activities in school and daily lives. Considerable variability exists regarding the amount of music <span class="hlt">involvement</span> and enjoyment. Using the Music Engagement Questionnaire-Preschool/Elementary (MEQ-P/E), we wanted to determine patterns of musical participation and the <span class="hlt">impact</span> of familial factors on engagement. Methods Parents of 32 children with CIs (16 preschool and 16 elementary) completed a questionnaire regarding the musical <span class="hlt">involvement</span> of their child with an implant and a normal-hearing (NH) sibling (if one existed). We compared CI children's <span class="hlt">involvement</span> to that of their NH siblings as well as across groups of children with and without CIs. Correlations between parent ratings of music importance, demographic factors, and <span class="hlt">involvement</span> of CI and NH children were conducted within and across groups. Results No significant differences were found between children with CIs and NH siblings, meaning children from the same family showed similar levels of musical <span class="hlt">involvement</span>. When compared at the same developmental stage, no significant differences were found between preschool children with and without CIs. Parents who rated the importance of music as 'low' or 'middle' had children (NH and CI) who were less <span class="hlt">involved</span> in music activities. Children whose parents rated music importance as 'high' were <span class="hlt">involved</span> in monthly to weekly music activities with 81.25% reporting daily music listening. Conclusion Despite a less-than-ideal auditory signal for music, preschool and school-aged CI children enjoy and are <span class="hlt">involved</span> in musical experiences. Families who enjoy and spend a greater amount of time <span class="hlt">involved</span> in music tend to have children who also engage more actively in music. PMID:25431978</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4420640','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4420640"><span id="translatedtitle">Family <span class="hlt">involvement</span> in music <span class="hlt">impacts</span> participation of children with cochlear implants in music education and music activities</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Driscoll, Virginia; Gfeller, Kate; Tan, Xueli; See, Rachel L.; Cheng, Hsin-Yi; Kanemitsu, Mikiko</p> <p>2014-01-01</p> <p>Objective Children with cochlear implants (CIs) participate in musical activities in school and daily lives. Considerable variability exists regarding the amount of music <span class="hlt">involvement</span> and enjoyment. Using the Music Engagement Questionnaire-Preschool/Elementary (MEQ-P/E), we wanted to determine patterns of musical participation and the <span class="hlt">impact</span> of familial factors on engagement. Methods Parents of 32 children with CIs (16 preschool, 16 elementary) completed a questionnaire regarding the musical <span class="hlt">involvement</span> of their child with an implant and a normal-hearing (NH) sibling (if one existed). We compared CI children's <span class="hlt">involvement</span> to that of their NH siblings as well as across groups of children with and without CIs. Correlations between parent ratings of music importance, demographic factors, and <span class="hlt">involvement</span> of CI and NH children were conducted within and across groups. Results No significant differences were found between children with CIs and NH siblings, meaning children from the same family showed similar levels of musical <span class="hlt">involvement</span>. When compared at the same developmental stage, no significant differences were found between preschool children with and without CIs. Parents who rated the importance of music as “low” or “middle” had children (NH and CI) who were less <span class="hlt">involved</span> in music activities. Children whose parents rated music importance as “high” were <span class="hlt">involved</span> in monthly to weekly music activities with 81.25% reporting daily music listening. Conclusion Despite a less-than-ideal auditory signal for music, preschool and school-aged CI children enjoy and are <span class="hlt">involved</span> in musical experiences. Families who enjoy and spend a greater amount of time <span class="hlt">involved</span> in music tend to have children who also engage more actively in music. PMID:25431978</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26723499','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26723499"><span id="translatedtitle">Clinical <span class="hlt">impact</span> of radiographic carotid artery <span class="hlt">involvement</span> in neck metastases from head and neck cancer.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Teymoortash, A; Rassow, S; Bohne, F; Wilhelm, T; Hoch, S</p> <p>2016-04-01</p> <p>The treatment of lymph node metastases <span class="hlt">involving</span> the carotid artery is controversial. The aim of the present study was to determine the outcomes of head and neck cancer patients with radiographic carotid artery <span class="hlt">involvement</span> in neck metastases. A total of 27 patients with head and neck cancer and radiologically diagnosed advanced metastases <span class="hlt">involving</span> the common carotid artery or internal carotid artery were enrolled. All patients underwent a primary or salvage neck dissection and surgical carotid peeling. The oncological outcome and survival of all patients were analyzed. Loco-regional control was observed in 13 of the 27 patients (48.1%). During follow-up, five patients (18.5%) developed second primaries and 11 (40.7%) developed distant metastases. The survival time was poor independent of regional control. The median overall survival was 1.55 years and disease-free survival was 0.71 year. Radiographic carotid artery <span class="hlt">involvement</span> in neck metastases in head and neck cancer appears to correlate with a poor long-term prognosis, with a high rate of distant metastases despite loco-regional control. PMID:26723499</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=marital+AND+job+AND+satisfaction&pg=3&id=EJ080357','ERIC'); return false;" href="http://eric.ed.gov/?q=marital+AND+job+AND+satisfaction&pg=3&id=EJ080357"><span id="translatedtitle">Exploring the <span class="hlt">Impact</span> of Work Satisfaction and <span class="hlt">Involvement</span> on Marital Interaction When Both Partners are Employed</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Ridley, Carl A.</p> <p>1973-01-01</p> <p>The two major conclusions of this study were: (1) teachers and their husbands follow different patterns concerning the job satisfaction-marital adjustment relationship, and (2) teachers and their husbands were more than moderately successful at preventing their job <span class="hlt">involvement</span> from interfering with their marital adjustment. (Author)</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=child+AND+stars&pg=3&id=ED562888','ERIC'); return false;" href="http://eric.ed.gov/?q=child+AND+stars&pg=3&id=ED562888"><span id="translatedtitle">Parent <span class="hlt">Involvement</span> and the <span class="hlt">Impact</span> on Student Achievement in Grades 2-5</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Thurber, Yvonne Marie</p> <p>2013-01-01</p> <p>This quantitative research study examined the relationship between student achievement in reading and mathematics on the STAR (Standardized Test for the Assessment of Reading and Mathematics) and parent <span class="hlt">involvement</span> in specific character development activities. The research design was quantitative in nature and conducted in two similar elementary…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://files.eric.ed.gov/fulltext/EJ901305.pdf','ERIC'); return false;" href="http://files.eric.ed.gov/fulltext/EJ901305.pdf"><span id="translatedtitle">Determining the <span class="hlt">Impact</span> of Block Scheduling on Leadership <span class="hlt">Involvement</span> in the FFA</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Dunigan, Anne H.; Hoover, Tracy S.</p> <p>2007-01-01</p> <p>Block scheduling was established in response to educational reform measures and is the restructuring of the school day in longer class increments with fewer number of classes per day. The FFA, an intra-curricular component of the agricultural education, provides leadership opportunities and <span class="hlt">involvement</span> within the classroom setting. This study…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=Liu%2c+AND+W.&pg=5&id=EJ835041','ERIC'); return false;" href="http://eric.ed.gov/?q=Liu%2c+AND+W.&pg=5&id=EJ835041"><span id="translatedtitle">The Differential <span class="hlt">Impact</span> of Early Father and Mother <span class="hlt">Involvement</span> on Later Student Achievement</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>McBride, Brent A.; Dyer, W. Justin; Liu, Ying; Brown, Geoffrey L.; Hong, Sungjin</p> <p>2009-01-01</p> <p>The purpose of this exploratory study was to examine the direct and indirect effects of early parenting on later parental school <span class="hlt">involvement</span> and student achievement. The sample, pulled from the 1st and 2nd waves of the Child Development Supplement data set of the Panel Study of Income Dynamics, consisted of 390 children age 2-5 at Time 1 and their…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://files.eric.ed.gov/fulltext/ED365917.pdf','ERIC'); return false;" href="http://files.eric.ed.gov/fulltext/ED365917.pdf"><span id="translatedtitle">Adolescent Abortion and Mandated Parental <span class="hlt">Involvement</span>: The <span class="hlt">Impact</span> of Back Alley Laws on Young Women.</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Flinn, Susan; And Others</p> <p></p> <p>This document notes that many states have passed, or are considering, laws that would mandate parental consent for, or notification of, a young woman's decision to obtain an abortion. Constructed in a question-and-answer format, the document then examines a number of issues concerned with such mandated parental <span class="hlt">involvement</span>. It examines who is…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=%22College+students%22&id=EJ1061287','ERIC'); return false;" href="http://eric.ed.gov/?q=%22College+students%22&id=EJ1061287"><span id="translatedtitle">The <span class="hlt">Impact</span> of Racial Socialization on the Academic Performance and Prosocial <span class="hlt">Involvement</span> of Black Emerging Adults</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>White-Johnson, Rhonda L.</p> <p>2015-01-01</p> <p>Despite evidence linking racial socialization processes to the functioning of Black youth, the effect of these parenting practices among Black college students is less clear. This study examined the relationship among racial socialization messages, academic performance, and prosocial <span class="hlt">involvement</span> for 295 Black college students. Results revealed…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=Liaison+AND+librarian&id=EJ754300','ERIC'); return false;" href="http://eric.ed.gov/?q=Liaison+AND+librarian&id=EJ754300"><span id="translatedtitle">Do a Little Dance: The <span class="hlt">Impact</span> on Students when Librarians Get <span class="hlt">Involved</span> in Extracurricular Activities</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Kasperek, Sheila; Johnson, Amber; Fotta, Katie; Craig, Francis</p> <p>2007-01-01</p> <p>One hundred fifty-two undergraduate students at Mansfield University of Pennsylvania were surveyed to determine if the <span class="hlt">involvement</span> of their liaison librarian in theater productions and orchestra had an effect on their relationship with the library. The study shows positive and statistically significant results for students who participated in…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=japanese&pg=4&id=EJ948410','ERIC'); return false;" href="http://eric.ed.gov/?q=japanese&pg=4&id=EJ948410"><span id="translatedtitle">The <span class="hlt">Impact</span> of Japanese Corporate Transnationalism on Men's <span class="hlt">Involvement</span> in Family Life and Relationships</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Yasuike, Akiko</p> <p>2011-01-01</p> <p>This study examines the ways in which Japanese corporate transnationalism affects husbands' <span class="hlt">involvement</span> in family life and marital relationships primarily from a perspective of wives. It is based on interviews with 22 Japanese wives and 4 husbands. Studies of Japanese corporate transnationalism treat men as mere supervisors to local workers or…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://files.eric.ed.gov/fulltext/ED427880.pdf','ERIC'); return false;" href="http://files.eric.ed.gov/fulltext/ED427880.pdf"><span id="translatedtitle"><span class="hlt">Impact</span> of Parent <span class="hlt">Involvement</span> on Children's Development and Academic Performance: A Three-Cohort Study.</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Marcon, Rebecca A.</p> <p></p> <p>This study examined the possibility of a "threshold" of parent <span class="hlt">involvement</span> with their children's preschools, that can lead to positive child outcomes in a sample of hard-to-engage families. Three cohorts of preschool children were studied, most from low-income, single-parent families. Teachers were interviewed to determine extent of contact they…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015WRR....51.7189C','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015WRR....51.7189C"><span id="translatedtitle">The <span class="hlt">impact</span> of transitions between two-fluid and three-fluid phases on fluid configuration and fluid-fluid interfacial area in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Carroll, Kenneth C.; McDonald, Kieran; Marble, Justin; Russo, Ann E.; Brusseau, Mark L.</p> <p>2015-09-01</p> <p>Multiphase-fluid distribution and flow is inherent in numerous areas of hydrology. Yet pore-scale characterization of transitions between two and three immiscible fluids is limited. The objective of this study was to examine the <span class="hlt">impact</span> of such transitions on the pore-scale configuration of organic liquid in a multifluid system comprising natural <span class="hlt">porous</span> media. Three-dimensional images of an organic liquid (trichloroethene) in two-phase (organic-liquid/water) and three-phase (air/organic-liquid/water) systems were obtained using X-ray microtomography before and after drainage and imbibition. Upon transition from a two-phase to a three-phase system, a significant portion of the organic liquid (intermediate wetting fluid) was observed to exist as lenses and films in contact with air (nonwetting fluid). In these cases, the air was either encased by or contiguous to the organic liquid. The presence of air resulted in an increase in the surface-area-to-volume ratios for the organic-liquid blobs. Upon imbibition, the air was displaced downgradient, and concomitantly, the morphology of the organic-liquid blobs no longer in contact with air reverted to that characteristic of a two-phase distribution (i.e., more spherical blobs and ganglia). This change in morphology resulted in a reduction in the surface-area-to-volume ratio. These results illustrate the <span class="hlt">impact</span> of transitions between two-phase and three-phase conditions on fluid configuration, and they demonstrate the malleable nature of fluid configuration under dynamic, multiphase-flow conditions. The results have implications for characterizing and modeling pore-scale flow and mass transfer processes.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/895764','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/895764"><span id="translatedtitle">Resolving the <span class="hlt">Impact</span> of Biological Processes on Water Transport in Unsaturated <span class="hlt">Porous</span> Media Through Nuclear Magnetic Resonance Micro-Imaging</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Seymour, Joseph D.</p> <p>2005-06-01</p> <p>The magnetic resonance microscopy (MRM) work at Montana State University has extended the imaging of a single biofilm in a 1 mm capillary reactor to correlate T2 magnetic relaxation maps displaying biofilm structure with the corresponding velocity patterns in three dimensions in a Staphylococcus epidermidis biofilm fouled square capillary. A square duct geometry is chosen to provide correlation with existing experiments and simulations, as research bioreactors tend to be of square or rectangular cross section for optical or microelectrode access. The spatially resolved velocity data provide details on the <span class="hlt">impact</span> of biofilm induced advection on mass transport from the bulk fluid to the biofilm and through the capillary bioreactor.</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_4");'>4</a></li> <li><a href="#" onclick='return showDiv("page_5");'>5</a></li> <li class="active"><span>6</span></li> <li><a href="#" onclick='return showDiv("page_7");'>7</a></li> <li><a href="#" onclick='return showDiv("page_8");'>8</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_6 --> <div id="page_7" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_5");'>5</a></li> <li><a href="#" onclick='return showDiv("page_6");'>6</a></li> <li class="active"><span>7</span></li> <li><a href="#" onclick='return showDiv("page_8");'>8</a></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="121"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2011AGUFM.H53N..02P','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2011AGUFM.H53N..02P"><span id="translatedtitle">The 2D versus 3D imaging trade-off: The <span class="hlt">impact</span> of over- or under-estimating small throats for simulating permeability in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Peters, C. A.; Crandell, L. E.; Um, W.; Jones, K. W.; Lindquist, W. B.</p> <p>2011-12-01</p> <p>Geochemical reactions in the subsurface can alter the porosity and permeability of a <span class="hlt">porous</span> medium through mineral precipitation and dissolution. While effects on porosity are relatively well understood, changes in permeability are more difficult to estimate. In this work, pore-network modeling is used to estimate the permeability of a <span class="hlt">porous</span> medium using pore and throat size distributions. These distributions can be determined from 2D Scanning Electron Microscopy (SEM) images of thin sections or from 3D X-ray Computed Tomography (CT) images of small cores. Each method has unique advantages as well as unique sources of error. 3D CT imaging has the advantage of reconstructing a 3D pore network without the inherent geometry-based biases of 2D images but is limited by resolutions around 1 μm. 2D SEM imaging has the advantage of higher resolution, and the ability to examine sub-grain scale variations in porosity and mineralogy, but is limited by the small size of the sample of pores that are quantified. A pore network model was created to estimate flow permeability in a sand-packed experimental column investigating reaction of sediments with caustic radioactive tank wastes in the context of the Hanford, WA site. Before, periodically during, and after reaction, 3D images of the <span class="hlt">porous</span> medium in the column were produced using the X2B beam line facility at the National Synchrotron Light Source (NSLS) at Brookhaven National Lab. These images were interpreted using 3DMA-Rock to characterize the pore and throat size distributions. After completion of the experiment, the column was sectioned and imaged using 2D SEM in backscattered electron mode. The 2D images were interpreted using erosion-dilation to estimate the pore and throat size distributions. A bias correction was determined by comparison with the 3D image data. A special image processing method was developed to infer the pore space before reaction by digitally removing the precipitate. The different sets of pore</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/19980201262','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/19980201262"><span id="translatedtitle">Department of Physics' <span class="hlt">Involvement</span> of the <span class="hlt">Impact</span> Testing Project of the High Speed Civil Transport Program (HSCT)</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>VonMeerwall, Ernst D.</p> <p>1994-01-01</p> <p>The project <span class="hlt">involved</span> the <span class="hlt">impact</span> testing of a kevlar-like woven polymer material, PBO. The purpose was to determine whether this material showed any promise as a lightweight replacement material for jet engine fan containment. The currently used metal fan containment designs carry a high drag penalty due to their weight. Projectiles were fired at samples of PBO by means of a 0.5 inch diameter Helium powered gun. The Initial plan was to encase the samples inside a purpose-built steel "hot box" for heating and ricochet containment. The research associate's responsibility was to develop the data acquisition programs and techniques necessary to determine accurately the <span class="hlt">impacting</span> projectile's velocity. Beyond this, the Research Associate's duties include any physical computations, experimental design, and data analysis necessary.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/20969922','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/20969922"><span id="translatedtitle">Approaches to mitigate the <span class="hlt">impact</span> of dissolved organic matter on the adsorption of synthetic organic contaminants by <span class="hlt">porous</span> carbonaceous sorbents</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Yanping Guo; Abhishek Yadav; Tanju Karanfil</p> <p>2007-11-15</p> <p>Adsorption of trichloroethylene (TCE) and atrazine, two synthetic organic contaminants (SOCs) having different optimum adsorption pore regions, by four activated carbons and an activated carbon fiber (ACF) was examined. Adsorbents included two coconut-shell based granular activated carbons (GACs), two coal-based GACs (F400 and HD4000) and a phenol formaldehyde-based activated carbon fiber. The selected adsorbents had a wide range of pore size distributions but similar surface acidity and hydrophobicity. Single solute and preloading (with a dissolved organic matter (DOM)) isotherms were performed. Single solute adsorption results showed that (i) the adsorbents having higher amounts of pores with sizes about the dimensions of the adsorbate molecules exhibited higher uptakes, (ii) there were some pore structure characteristics, which were not completely captured by pore size distribution analysis, that also affected the adsorption, and (iii) the BET surface area and total pore volume were not the primary factors controlling the adsorption of SOCs. The preloading isotherm results showed that for TCE adsorbing primarily in pores <10 {angstrom}, the highly microporous ACF and GACs, acting like molecular sieves, exhibited the highest uptakes. For atrazine with an optimum adsorption pore region of 10-20 {angstrom}, which overlaps with the adsorption region of some DOM components, the GACs with a broad pore size distribution and high pore volumes in the 10-20 {angstrom} region had the least <span class="hlt">impact</span> of DOM on the adsorption. 25 refs., 3 figs., 3 tabs.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3406242','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3406242"><span id="translatedtitle">Nonideal Transport of Contaminants in Heterogeneous <span class="hlt">Porous</span> Media: 9. <span class="hlt">Impact</span> of Contact Time on Desorption and Elution Tailing</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Brusseau, M.L.; Russo, A.E.; Schnaar, G.</p> <p>2012-01-01</p> <p>A series of miscible-displacement experiments was conducted to examine the <span class="hlt">impact</span> of sorption contact time on desorption and elution of trichloroethene from a well-characterized soil. A large number of contact times were examined, spanning 1 hour to 4 years (~2·106 h). Effluent trichloroethene concentrations were monitored over a range of greater than six orders of magnitude, allowing characterization of potential asymptotic tailing. The results of the column experiments showed that trichloroethene exhibited extensive elution tailing for all experiments. Each increase in contact time resulted in a successive increase in the extent of tailing. In total, the number of pore volumes of water flushing required to reach the analytical detection limit increased from approximately 1000 for the one-hour contact time to almost 9000 for the four-year contact time. These results indicate that a contact time of less than one hour produced a sorbed phase that is relatively resistant to desorption, and that a progressive increase in resistance to desorption occurred with increased contact time. A mathematical model incorporating nonlinear, rate-limited sorption/desorption described by a continuous-distribution reaction function was used to successfully simulate the measured data. The nonlinear sorption, the apparent rapid development of desorption resistance, and the progressive increase in resistance with increasing contact time are consistent with behavior anticipated for sorbate interactions with hard-carbon components of the soil. PMID:22608708</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2013AGUFM.H53C1430R','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2013AGUFM.H53C1430R"><span id="translatedtitle">Geochemical <span class="hlt">Impact</span> on the Caprock <span class="hlt">Porous</span> Structure during CO2 Geological Storage : A Laboratory and Modeling Study</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Rhenals Garrido, D. R.; Lafortune, S.; Souli, H.; Dubujet, P.</p> <p>2013-12-01</p> <p>CO2 storage is envisioned as a technique which reduces large quantities of CO2 rejected in the atmosphere because of many human activities. The effectiveness of this technique is mainly related to the storage capacity as well as its safety. The safety of this operation is primarily based on the conservation of petro-physical properties of the caprock, which prevents the transport of CO2 towards the surface. However when CO2 reaches the reservoir/caprock interface due to buoyancy effects, the interaction between interstitial fluid and injected fluid creates a serie of dissolution/precipitation reactions affecting the properties of containment of the caprock, which is generally characterized by low transport properties. This study aims to assess the <span class="hlt">impact</span> caused by CO2/interstitial fluid interaction on the nanostructure of a caprock under geological storage conditions. In order to do this, degradation experiments at high pressure of CO2 (88 bar) and isothermal (55°C) conditions have been conducted using batch reactors for 3.5 months. The sample used for these experiments is a well characterized shale, from the Tournemire formation (Aveyron-France). Porosity evolution has been followed by using volumetric adsorption at low pressure, from advanced NLFDT and classical theories based on the micropores filling, and capillary condensation phenomena. Results showed a slight variation in both mesopores and micropores size distributions, as a result of dissolution processes, which dominated at laboratoty time scale. Furthermore, chemical analysis from the water sampled showed an overall increase in Ca,Mg,K,Si,Na. The results obtained by physical adsorption and water chemistry analysis were consistent, with geochemical modeling, which suggested reaction paths with calcite dissolution as the main mineral, by producing porosity at short term and (clays, feldspars) dissolution of aluminosilicates dominating at long term.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26457370','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26457370"><span id="translatedtitle">The <span class="hlt">impact</span> of emotional <span class="hlt">involvement</span> on online service buying decisions: an event-related potentials perspective.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Zhao, Meina; Wang, Jing; Han, Weiwei</p> <p>2015-12-01</p> <p>When examining a buying process, changes in human brain signals and their event-related potential (ERP) components can be considered a reflection of the consumers' emotions. In this experiment, participants were shown 12 products and related services that were available for purchase. After recording ERP components, we used a questionnaire to measure the individuals' emotional <span class="hlt">involvement</span> toward the services (i.e. the same services shown in the stimuli) of the 12 products to measure the emotional valence of the services. The emotional ERP components and the late positive potential (LPP) were elicited under the service conditions and distributed over the left frontal regions. We determined that the services may evoke an LPP and that services with a high emotional value may evoke a larger LPP, which suggests that positive emotion may be measured using the LPP amplitude in the left frontal regions. This result helps elucidate whether positive emotions are stimulated during the product-service system decision-making process and helps understand the emotional valences of different services. Our analysis of the emotional motivation of the consumer suggests that the LPP may be useful as an emotional indicator for measuring consumers' evaluation of services that provides a neural view of product-service system buying decisions. PMID:26457370</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4623853','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4623853"><span id="translatedtitle">The <span class="hlt">impact</span> of emotional <span class="hlt">involvement</span> on online service buying decisions: an event-related potentials perspective</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Wang, Jing; Han, Weiwei</p> <p>2015-01-01</p> <p>When examining a buying process, changes in human brain signals and their event-related potential (ERP) components can be considered a reflection of the consumers’ emotions. In this experiment, participants were shown 12 products and related services that were available for purchase. After recording ERP components, we used a questionnaire to measure the individuals’ emotional <span class="hlt">involvement</span> toward the services (i.e. the same services shown in the stimuli) of the 12 products to measure the emotional valence of the services. The emotional ERP components and the late positive potential (LPP) were elicited under the service conditions and distributed over the left frontal regions. We determined that the services may evoke an LPP and that services with a high emotional value may evoke a larger LPP, which suggests that positive emotion may be measured using the LPP amplitude in the left frontal regions. This result helps elucidate whether positive emotions are stimulated during the product-service system decision-making process and helps understand the emotional valences of different services. Our analysis of the emotional motivation of the consumer suggests that the LPP may be useful as an emotional indicator for measuring consumers’ evaluation of services that provides a neural view of product-service system buying decisions. PMID:26457370</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26213084','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26213084"><span id="translatedtitle"><span class="hlt">Impact</span> of different techniques <span class="hlt">involving</span> contact with lees on the volatile composition of cider.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Antón-Díaz, María José; Suárez Valles, Belén; Mangas-Alonso, Juan José; Fernández-García, Ovidio; Picinelli-Lobo, Anna</p> <p>2016-01-01</p> <p>The effect of different treatments <span class="hlt">involving</span> contact with natural lees on the aromatic profile of cider has been evaluated. Comparing with the untreated ciders, the contact with lees brought about a significant increase of the concentrations of most of the volatile compounds analysed, in particular fatty acids, alcohols, ethyl esters and 3-ethoxy-1-propanol. The opposite was observed among fusel acetate esters and 4-vinylguaiacol. The addition of β-glucanase enhanced the increase of ethyl octanoate, but produced a decrease in the contents of decanoic acid and all of the major volatiles excepting acetaldehyde, ethyl acetate and acetoine, whereas the application of oxygen influenced the rise of the level of 3-ethoxy-1-propanol only. The olfactometric profiles also revealed significant effects of the treatment with lees for ethyl propionate, diacetyl, cis-3-hexenol, acetic acid, benzyl alcohol, and m-cresol, while the addition of oxygen significantly influenced the perception of ethyl hexanoate, 1-octen-3-one, 3-methyl-2-butenol, t-3-hexenol and c-3-hexenol. PMID:26213084</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/946665','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/946665"><span id="translatedtitle"><span class="hlt">Impact</span> of nonaqueous phase liquid (NAPL) source zone architecture on mass removal mechanisms in strongly layered heterogeneous <span class="hlt">porous</span> media during soil vapor extraction</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Yoon, Hongkyu; Werth, Charlie; Valocchi, Albert J.; Oostrom, Martinus</p> <p>2008-09-26</p> <p>An existing multiphase flow simulator was modified in order to determine the effects of four mechanisms on NAPL mass removal in a strongly layered heterogeneous vadose zone during soil vapor extraction (SVE): a) NAPL flow, b) diffusion and dispersion from low permeability zones, c) slow desorption from sediment grains, and d) rate-limited dissolution of trapped NAPL. The <span class="hlt">impact</span> of water and NAPL saturation distribution, NAPL type (i.e., free, residual, or trapped) distribution, and spatial heterogeneity of the permeability field on these mechanisms were evaluated. Two different initial source zone architectures (one with and one without trapped NAPL) were considered and these architectures were used to evaluate seven different SVE scenarios. For all runs, slow diffusion from low permeability zones that gas flow bypassed was a dominant factor for diminished SVE effectiveness at later times. This effect was more significant at high water saturation due to the decrease of gas-phase relative permeability. Transverse dispersion contributed to fast NAPL mass removal from the low permeability layer in both source zone architectures, but longitudinal dispersion did not affect overall mass removal time. Both slow desorption from sediment grains and rate-limited mass transfer from trapped NAPL only marginally affected removal times. However, mass transfer from trapped NAPL did affect mass removal at late time, as well as the NAPL distribution. NAPL flow from low to high permeability zones contributed to faster mass removal from the low permeability layer, and this effect increased when water infiltration was eliminated. These simulations indicate that if trapped NAPL exists in heterogeneous <span class="hlt">porous</span> media, mass transfer can be improved by delivering gas directly to zones with trapped NAPL and by lowering the water content, which increases the gas relative permeability and changes trapped NAPL to free NAPL.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4568111','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4568111"><span id="translatedtitle">Clinical and Financial <span class="hlt">Impact</span> of Pharmacist <span class="hlt">Involvement</span> in Discharge Medication Reconciliation at an Academic Medical Center: A Prospective Pilot Study</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Parsons, Laura Beth; Pilch, Nicole A. (Weimert); Bullington, Wendy; Hayes, Genevieve L.; Easterling, Heather</p> <p>2015-01-01</p> <p>Background: Medication reconciliation is one of the more challenging aspects of inpatient care, and its accuracy is paramount to safe transitions of care. Studies have shown that pharmacists have a role in medication reconciliation through improving patient safety and avoiding costs associated with medication errors. The wide-scale use of pharmacists in this process has been limited by time constraints, cost, and lack of resources. Objective: This study evaluates the <span class="hlt">impact</span> of pharmacists in resolving medication errors, decreasing readmission rates, and reducing institutional costs during the discharge medication reconciliation process. Methods: Pharmacists evaluated discharge medication reconciliation documentation for patients to determine its accuracy, the accuracy of the admission reconciliation documentation, and any potential issues unrelated to accuracy. Analysis of these data determined the time required for pharmacist <span class="hlt">involvement</span>, the number of errors identified by pharmacists, the quality of pharmacist interventions, the cost avoidance for each error, and the overall <span class="hlt">impact</span> on hospital readmission. Results: During the 7-week study period, pharmacists performed 67 discharge medication reviews and identified 84 errors. Seventy-five percent were considered to be significant and 6% were considered to be serious. The 30-day readmission rate in the study cohort was 18% compared with 20% in the control group. Based on the clinical severity scale and pharmacist salaries, pharmacist interventions resulted in $42,300 in cost avoidance. Conclusion: Pharmacists <span class="hlt">involved</span> in this pilot discharge process identified and resolved significant errors on medication reconciliation orders that resulted in a financial benefit to the institution. PMID:26405342</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/24906461','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/24906461"><span id="translatedtitle">The <span class="hlt">impact</span> of self-concept and college <span class="hlt">involvement</span> on the first-year success of medical students in China.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Zhou, Ying-Xue; Ou, Chun-Quan; Zhao, Zhi-Tao; Wan, Cheng-Song; Guo, Cui; Li, Li; Chen, Ping-Yan</p> <p>2015-03-01</p> <p>Students' first-year academic success plays a critical role on their overall development in college, which implies the need to concentrate on identifying ways to improve students' first-year academic success. Different from most research on the subject, this study attempted to combine the sociological perspective of college <span class="hlt">impact</span> with a psychological perspective to synthetically explore the causal relationship of specific types of self-concept and college <span class="hlt">involvement</span> with academic success of medical students. A longitudinal study was conducted using 519 matriculates at a medical university in mainland China. We conducted the Cooperative Institutional Research Program freshmen survey and the Your First College Year survey to collect data of the pre-college and college academic and social self-concept, college <span class="hlt">involvement</span> components, and some input characteristics. The academic success was measured by the first-year grade point average. A pathway analysis was conducted and showed the following results. Having high academic self-concept, being engaged in class and putting effort in homework or study directly contributes to increasing college achievement. Students' pre-college achievement and self-concept, faculty interaction, and homework <span class="hlt">involvement</span> positively affected students' college academic self-concept development, which indirectly improved average grade point. These findings contribute to our understanding of a student's ability to interact with his or her collegiate environment and to experience academic success. PMID:24906461</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3639501','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3639501"><span id="translatedtitle"><span class="hlt">Porous</span> Shape Memory Polymers</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Hearon, Keith; Singhal, Pooja; Horn, John; Small, Ward; Olsovsky, Cory; Maitland, Kristen C.; Wilson, Thomas S.; Maitland, Duncan J.</p> <p>2013-01-01</p> <p><span class="hlt">Porous</span> shape memory polymers (SMPs) include foams, scaffolds, meshes, and other polymeric substrates that possess <span class="hlt">porous</span> three-dimensional macrostructures. <span class="hlt">Porous</span> SMPs exhibit active structural and volumetric transformations and have driven investigations in fields ranging from biomedical engineering to aerospace engineering to the clothing industry. The present review article examines recent developments in <span class="hlt">porous</span> SMPs, with focus given to structural and chemical classification, methods of characterization, and applications. We conclude that the current body of literature presents <span class="hlt">porous</span> SMPs as highly interesting smart materials with potential for industrial use. PMID:23646038</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/20850235','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/20850235"><span id="translatedtitle"><span class="hlt">Impact</span> of <span class="hlt">involved</span> field radiotherapy in partial response after doxorubicin-based chemotherapy for advanced aggressive non-Hodgkin's lymphoma</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Moser, Elizabeth C. . E-mail: e.c.moser@lumc.nl; Kluin-Nelemans, Hanneke C.; Carde, Patrice; Meerwaldt, Jacobus H.; Tirelli, Umberto; Aleman, Berthe M.P.; Baars, Joke; Thomas, Jose; Glabbeke, Martine van; Noordijk, Evert M.</p> <p>2006-11-15</p> <p>Purpose: Whether salvage therapy in patients with advanced aggressive non-Hodgkin's lymphoma (NHL) in partial remission (PR) should consist of radiotherapy or autologous stem-cell transplantation (ASCT) is debatable. We evaluated the <span class="hlt">impact</span> of radiotherapy on outcome in PR patients treated in four successive European Organization for Research and Treatment of Cancer trials for aggressive NHL. Patients and Methods: Records of 974 patients (1980-1999) were reviewed regarding initial response, final outcome, and type and timing of salvage treatment. After 8 cycles of doxorubicin-based chemotherapy, 227 NHL patients were in PR and treated: 114 received <span class="hlt">involved</span> field radiotherapy, 16 ASCT, 93 second-line chemotherapy, and 4 were operated. Overall survival (OS) and progression-free survival (PFS) after radiotherapy were estimated (Kaplan-Meier method) and compared with other treatments (log-rank). <span class="hlt">Impact</span> on survival was evaluated by multivariate analysis (Cox proportional hazards model). Results: The median PFS in PR patients was 4.2 years and 48% remained progression-free at 5 years. Half of the PR patients converted to a complete remission. After conversion, survival was comparable to patients directly in complete remission. Radiotherapy resulted in better OS and PFS compared with other treatments, especially in patients with low to intermediate International Prognostic Index score, bulky disease, or nodal disease only. Correction by multivariate analysis for prognostic factors such as stage, bulky disease, and number of extranodal locations showed that radiotherapy was clearly the most significant factor affecting both OS and PFS. Conclusion: This retrospective analysis demonstrates that radiotherapy can be effective for patients in PR after fully dosed chemotherapy; assessment in a randomized trial (radiotherapy vs. ASCT) is justified.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2016JLTP..tmp..187M','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2016JLTP..tmp..187M"><span id="translatedtitle">Adsorption on Highly Ordered <span class="hlt">Porous</span> Alumina</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Mistura, Giampaolo; Bruschi, Lorenzo; Lee, Woo</p> <p>2016-04-01</p> <p><span class="hlt">Porous</span> anodic aluminum oxide (AAO) is characterized by a regular arrangement of the pores with a narrow pore size distribution over extended areas, uniform pore depth, and solid pore walls without micropores. Thanks to significant improvements in anodization techniques, structural engineering of AAO allows to accurately tailor the pore morphology. These features make <span class="hlt">porous</span> AAO an excellent substrate to study adsorption phenomena. In this paper, we review recent experiments <span class="hlt">involving</span> the adsorption in <span class="hlt">porous</span> AAO. Particular attention will be devoted to adsorption in straight and structured pores with a closed end which shed new light on fundamental issues like the origin of hysteresis in closed end pores and the nature of evaporation from ink-bottle pores. The results will be compared to those obtained in other synthetic materials like <span class="hlt">porous</span> silicon and silica.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3651970','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3651970"><span id="translatedtitle"><span class="hlt">Involving</span> patient research partners has a significant <span class="hlt">impact</span> on outcomes research: a responsive evaluation of the international OMERACT conferences</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>de Wit, Maarten; Abma, Tineke; Koelewijn-van Loon, Marije; Collins, Sarah; Kirwan, John</p> <p>2013-01-01</p> <p>Objective To assess the inclusion of patients as international research partners in Outcome Measures in Rheumatology (OMERACT) conferences and how this has influenced the scope and conduct of outcomes research in rheumatology. Design A thematic content analysis of OMERACT internal documents, publications and conference proceedings, followed by a responsive evaluation including 32 qualitative semistructured interviews. Setting The international, biannual research conference OMERACT 10 (Malaysia, 2010). Participants Senior researchers (n=10), junior researchers (n=2), representatives of the pharmaceutical industry and regulators (n=2), conference staff (n=2), new patient delegates (n=8) and experienced patient delegates (n=8). Results The role of patients evolved over 10 years from a single patient focus group to full participation in all areas of the meeting and inclusion in research group meetings between conferences. Five main categories of <span class="hlt">impact</span> emerged: widening the research agenda; including patient relevant outcomes in core sets; enhancing patient reported instruments; changing the culture of OMERACT and consequences outside OMERACT. Patient participants identified previously neglected outcome domains such as fatigue, sleep disturbances and flares which prompted collaborative working on new programmes of research. Specific benefits and challenges for patients and professionals were identified, such as personal fulfilment, widening of research interests, difficulties in establishing equal partnerships and concerns about loss of research rigour. Conclusions Including patients as partners in OMERACT conferences has widened its focus and adjusted the way of working. It has resulted in new developments in the research agenda and the use of more patient-relevant outcomes in clinical trials. These collaborations have influenced perceptions and beliefs among many patients and researchers, and led to wider patient <span class="hlt">involvement</span> as partners in research. PMID:23667160</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=Istanbul&pg=6&id=EJ1016713','ERIC'); return false;" href="http://eric.ed.gov/?q=Istanbul&pg=6&id=EJ1016713"><span id="translatedtitle">The <span class="hlt">Impact</span> of Socio-Economic Status on Parental <span class="hlt">Involvement</span> in Turkish Primary Schools: Perspective of Teachers</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Bellibas, Mehmet Sukru; Gumus, Sedat</p> <p>2013-01-01</p> <p>This exploratory qualitative study investigates the effects of socio-economic status on parental <span class="hlt">involvement</span> in public primary schools in Turkey. The study aims to examine how teachers in these schools present the scope of current parental <span class="hlt">involvement</span>, to what factors teachers ascribe the barriers to parental <span class="hlt">involvement</span>, and whether…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=scholar+AND+motivation&pg=5&id=ED547953','ERIC'); return false;" href="http://eric.ed.gov/?q=scholar+AND+motivation&pg=5&id=ED547953"><span id="translatedtitle">The <span class="hlt">Impact</span> of <span class="hlt">Involvement</span> of African American Parents on Students' Achievement in a Middle School</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Lopez, Raquel</p> <p>2012-01-01</p> <p>This applied dissertation was designed to provide better understanding of issues related to parental <span class="hlt">involvement</span> to school officials and scholars. The parental <span class="hlt">involvement</span> at the school was very low and academic achievement was also low. The school leaders were requested to increase parental <span class="hlt">involvement</span> and the School Improvement Plan specified…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/5177290','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/biblio/5177290"><span id="translatedtitle">Ventilation of <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Neeper, D.A.</p> <p>1994-02-22</p> <p>Methods are presented for distributing gases throughout the interstices of <span class="hlt">porous</span> materials and removing volatile substances from the interstices of <span class="hlt">porous</span> materials. Continuous oscillation of pressures and flows results in increased penetration of the interstices by flowing gases and increased transport of gaseous components out of the interstices. The invention is particularly useful in soil vapor extraction. 10 figures.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/869166','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/869166"><span id="translatedtitle">Ventilation of <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Neeper, Donald A.</p> <p>1994-01-01</p> <p>Methods for distributing gases throughout the interstices of <span class="hlt">porous</span> materials and removing volatile substances from the interstices of <span class="hlt">porous</span> materials. Continuous oscillation of pressures and flows results in increased penetration of the interstices by flowing gases and increased transport of gaseous components out of the interstices. The invention is particularly useful in soil vapor extraction.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4067891','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4067891"><span id="translatedtitle">Exploring perceived barriers, drivers, <span class="hlt">impacts</span> and the need for evaluation of public <span class="hlt">involvement</span> in health and social care research: a modified Delphi study</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Snape, D; Kirkham, J; Britten, N; Froggatt, K; Gradinger, F; Lobban, F; Popay, Jennie; Wyatt, K; Jacoby, Ann</p> <p>2014-01-01</p> <p>Objective To explore areas of consensus and conflict in relation to perceived public <span class="hlt">involvement</span> (PI) barriers and drivers, perceived <span class="hlt">impacts</span> of PI and ways of evaluating PI approaches in health and social care research. Background Internationally and within the UK the recognition of potential benefits of PI in health and social care research is gathering momentum and PI is increasingly identified by organisations as a prerequisite for funding. However, there is relatively little examination of the <span class="hlt">impacts</span> of PI and how those <span class="hlt">impacts</span> might be measured. Design Mixed method, three-phase, modified Delphi technique, conducted as part of a larger MRC multiphase project. Sample Clinical and non-clinical academics, members of the public, research managers, commissioners and funders. Findings This study found high levels of consensus about the most important barriers and drivers to PI. There was acknowledgement that tokenism was common in relation to PI; and strong support for the view that demonstrating the <span class="hlt">impacts</span> and value of PI was made more difficult by tokenistic practice. PI was seen as having intrinsic value; nonetheless, there was clear support for the importance of evaluating its <span class="hlt">impact</span>. Research team cohesion and appropriate resources were considered essential to effective PI implementation. Panellists agreed that PI can be challenging, but can be facilitated by clear guidance, together with models of good practice and measurable standards. Conclusions This study is the first to present empirical evidence of the opinions voiced by key stakeholders on areas of consensus and conflict in relation to perceived PI barriers and drivers, perceived <span class="hlt">impacts</span> of PI and the need to evaluate PI. As such it further contributes to debate around best practice in PI, the potential for tokenism and how best to evaluate the <span class="hlt">impacts</span> of PI. These findings have been used in the development of the Public <span class="hlt">Involvement</span> <span class="hlt">Impact</span> Assessment Framework (PiiAF), an online resource which offers</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_5");'>5</a></li> <li><a href="#" onclick='return showDiv("page_6");'>6</a></li> <li class="active"><span>7</span></li> <li><a href="#" onclick='return showDiv("page_8");'>8</a></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_7 --> <div id="page_8" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_6");'>6</a></li> <li><a href="#" onclick='return showDiv("page_7");'>7</a></li> <li class="active"><span>8</span></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li><a href="#" onclick='return showDiv("page_10");'>10</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="141"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=sexual+AND+satisfaction&pg=7&id=EJ812518','ERIC'); return false;" href="http://eric.ed.gov/?q=sexual+AND+satisfaction&pg=7&id=EJ812518"><span id="translatedtitle">Posttraumatic Stress Disorder and Social Support in Female Victims of Sexual Assault: The <span class="hlt">Impact</span> of Spousal <span class="hlt">Involvement</span> on the Efficacy of Cognitive-Behavioral Therapy</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Billette, Valerie; Guay, Stephane; Marchand, Andre</p> <p>2008-01-01</p> <p>The goal of this study is to enhance the efficacy of CBT with victims of sexual assault suffering from PTSD by getting the spouse <span class="hlt">involved</span>. Thus, in addition to attempting to reduce PTSD symptoms, the therapy focuses on improving the support offered by the spouse and favors management of the <span class="hlt">impact</span> of the traumatic event within the couple. A…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=defining+AND+self-esteem&pg=4&id=ED513677','ERIC'); return false;" href="http://eric.ed.gov/?q=defining+AND+self-esteem&pg=4&id=ED513677"><span id="translatedtitle">An Investigation of the <span class="hlt">Impact</span> of Student Government <span class="hlt">Involvement</span> at One Public Historically Black University on the Career Choice of African American Student Participants</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Laosebikan-Buggs, Morolake O.</p> <p>2009-01-01</p> <p>The purpose of this study was to investigate student participation in collegiate student governance, the <span class="hlt">impact</span> of that <span class="hlt">involvement</span> and its influence on career choice for African-American participants, and to enlighten educators about role and value of collegiate student government participation. If participation in student government and…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=teammates+AND+relationship&id=EJ1017601','ERIC'); return false;" href="http://eric.ed.gov/?q=teammates+AND+relationship&id=EJ1017601"><span id="translatedtitle">The <span class="hlt">Impact</span> of Teachers' and Supervisors' <span class="hlt">Involvement</span> on Students' Skill and Affective Development in Service-Learning</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Leemen, Lee</p> <p>2013-01-01</p> <p>The study reported an assessment of a university-wide curriculum-based service learning program and, based on the assessment data, analyzed the <span class="hlt">impact</span> of teachers' and supervisors' <span class="hlt">involvement</span> on students' skill and affective learning outcomes. The study (n=750) showed that in general the students agreed that their participation in…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/415139','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/415139"><span id="translatedtitle"><span class="hlt">Porous</span> silicon gettering</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Tsuo, Y.S.; Menna, P.; Al-Jassim, M.</p> <p>1995-08-01</p> <p>We have studied a novel extrinsic gettering method that utilizes the very large surface areas, produced by <span class="hlt">porous</span> silicon etch on both front and back surfaces of the silicon wafer, as gettering sites. In this method, a simple and low-cost chemical etching is used to generate the <span class="hlt">porous</span> silicon layers. Then, a high-flux solar furnace (HFSF) is used to provide high-temperature annealing and the required injection of silicon interstitials. The gettering sites, along with the gettered impurities, can be easily removed at the end the process. The <span class="hlt">porous</span> silicon removal process consists of oxidizing the <span class="hlt">porous</span> silicon near the end the gettering process followed by sample immersion in HF acid. Each <span class="hlt">porous</span> silicon gettering process removes up to about 10 {mu}m of wafer thickness. This gettering process can be repeated so that the desired purity level is obtained.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2011PhDT........66Y','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2011PhDT........66Y"><span id="translatedtitle">Ultrasonic Nondestructive Characterization of <span class="hlt">Porous</span> Materials</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Yang, Ningli</p> <p>2011-12-01</p> <p>Wave propagation in <span class="hlt">porous</span> media is studied in a wide range of technological applications. In the manufacturing industry, determining porosity of materials in the manufacturing process is required for strict quality control. In the oil industry, acoustic signals and seismic surveys are used broadly to determine the physical properties of the reservoir rock which is a <span class="hlt">porous</span> media filled with oil or gas. In <span class="hlt">porous</span> noise control materials, a precise prediction of sound absorption with frequency and evaluation of tortuosity are necessary. Ultrasonic nondestructive methods are a very important tool for characterization of <span class="hlt">porous</span> materials. The dissertation deals with two types of <span class="hlt">porous</span> media: materials with relatively low and closed porosity and materials with comparatively high and open porosity. Numerical modeling, Finite Element simulations and experimental characterization are all discussed in this dissertation. First, ultrasonic scattering is used to determine the porosity in <span class="hlt">porous</span> media with closed pores. In order get a relationship between the porosity in <span class="hlt">porous</span> materials and ultrasonic scattering independently and to increase the sensitivity to obtain scattering information, ultrasonic imaging methods are applied and acoustic waves are focused by an acoustic lens. To verify the technique, engineered <span class="hlt">porous</span> acrylic plates with varying porosity are measured by ultrasonic scanning and ultrasonic array sensors. Secondly, a laser based ultrasonic technique is explored for predicting the mechanical integrity and durability of cementitious materials. The technique used <span class="hlt">involves</span> the measurement of the phase velocity of fast and slow longitudinal waves in water saturated cement paste. The slow wave velocity is related to the specimen's tortuosity. The fast wave speed is dependent on the elastic properties of <span class="hlt">porous</span> solid. Experimental results detailing the generation and detection of fast and slow wave waves in freshly prepared and aged water-saturated cement samples</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://files.eric.ed.gov/fulltext/EJ1092708.pdf','ERIC'); return false;" href="http://files.eric.ed.gov/fulltext/EJ1092708.pdf"><span id="translatedtitle">Predictors of Parent <span class="hlt">Involvement</span> and Their <span class="hlt">Impact</span> on Access of Postsecondary Education Facilitators among White and American Indian Parents</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Bardhoshi, Gerta; Duncan, Kelly; Schweinle, Amy</p> <p>2016-01-01</p> <p>This study examined demographic factors as predictors of parent <span class="hlt">involvement</span> (engagement with school, support of learning, support of child) among parents of children that attended a school implementing a college access program. The authors also examined whether <span class="hlt">involvement</span> predicted access of postsecondary education facilitators in parents, when…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://files.eric.ed.gov/fulltext/EJ1032271.pdf','ERIC'); return false;" href="http://files.eric.ed.gov/fulltext/EJ1032271.pdf"><span id="translatedtitle">The <span class="hlt">Impact</span> of a Collaborative Family <span class="hlt">Involvement</span> Program on Latino Families and Children's Educational Performance</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>O'Donnell, Julie; Kirkner, Sandra L.</p> <p>2014-01-01</p> <p>Latino families highly value education and are committed to their children's educational success; however, Latino students often experience educational challenges. Well-designed family <span class="hlt">involvement</span> programs can encourage Latino families, especially new immigrants or monolingual Spanish-speakers, to increase their <span class="hlt">involvement</span> resulting in…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ars.usda.gov/research/publications/Publications.htm?seq_no_115=229969','TEKTRAN'); return false;" href="http://www.ars.usda.gov/research/publications/Publications.htm?seq_no_115=229969"><span id="translatedtitle">Structure of <span class="hlt">Porous</span> Starch Microcellular Foam Particles</span></a></p> <p><a target="_blank" href="http://www.ars.usda.gov/services/TekTran.htm">Technology Transfer Automated Retrieval System (TEKTRAN)</a></p> <p></p> <p></p> <p>A relatively new starch product with various novel applications is a <span class="hlt">porous</span> microcellular foam. The foam product is made by dehydrating a starch hydrogel in a solvent such as ethanol and then removing the solvent to form a foam product. The process <span class="hlt">involves</span> heating an aqueous slurry of starch (8% w/...</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/1064437','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/1064437"><span id="translatedtitle">Preparation of asymmetric <span class="hlt">porous</span> materials</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Coker, Eric N.</p> <p>2012-08-07</p> <p>A method for preparing an asymmetric <span class="hlt">porous</span> material by depositing a <span class="hlt">porous</span> material film on a flexible substrate, and applying an anisotropic stress to the <span class="hlt">porous</span> media on the flexible substrate, where the anisotropic stress results from a stress such as an applied mechanical force, a thermal gradient, and an applied voltage, to form an asymmetric <span class="hlt">porous</span> material.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/1041028','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/1041028"><span id="translatedtitle"><span class="hlt">POROUS</span> WALL, HOLLOW GLASS MICROSPHERES</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Sexton, W.</p> <p>2012-06-30</p> <p>Hollow Glass Microspheres (HGM) is not a new technology. All one has to do is go to the internet and Google{trademark} HGM. Anyone can buy HGM and they have a wide variety of uses. HGM are usually between 1 to 100 microns in diameter, although their size can range from 100 nanometers to 5 millimeters in diameter. HGM are used as lightweight filler in composite materials such as syntactic foam and lightweight concrete. In 1968 a patent was issued to W. Beck of the 3M{trademark} Company for 'Glass Bubbles Prepared by Reheating Solid Glass Particles'. In 1983 P. Howell was issued a patent for 'Glass Bubbles of Increased Collapse Strength' and in 1988 H. Marshall was issued a patent for 'Glass Microbubbles'. Now Google{trademark}, <span class="hlt">Porous</span> Wall, Hollow Glass Microspheres (PW-HGMs), the key words here are <span class="hlt">Porous</span> Wall. Almost every article has its beginning with the research done at the Savannah River National Laboratory (SRNL). The Savannah River Site (SRS) where SRNL is located has a long and successful history of working with hydrogen and its isotopes for national security, energy, waste management and environmental remediation applications. This includes more than 30 years of experience developing, processing, and implementing special ceramics, including glasses for a variety of Department of Energy (DOE) missions. In the case of glasses, SRS and SRNL have been <span class="hlt">involved</span> in both the science and engineering of vitreous or glass based systems. As a part of this glass experience and expertise, SRNL has developed a number of niches in the glass arena, one of which is the development of <span class="hlt">porous</span> glass systems for a variety of applications. These <span class="hlt">porous</span> glass systems include sol gel glasses, which include both xerogels and aerogels, as well as phase separated glass compositions, that can be subsequently treated to produce another unique type of porosity within the glass forms. The <span class="hlt">porous</span> glasses can increase the surface area compared to 'normal glasses of a 1 to 2 order of</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/20080004797','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/20080004797"><span id="translatedtitle">Fabricating <span class="hlt">porous</span> silicon carbide</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Shor, Joseph S. (Inventor); Kurtz, Anthony D. (Inventor)</p> <p>1994-01-01</p> <p>The formation of <span class="hlt">porous</span> SiC occurs under electrochemical anodization. A sample of SiC is contacted electrically with nickel and placed into an electrochemical cell which cell includes a counter electrode and a reference electrode. The sample is encapsulated so that only a bare semiconductor surface is exposed. The electrochemical cell is filled with an HF electrolyte which dissolves the SiC electrochemically. A potential is applied to the semiconductor and UV light illuminates the surface of the semiconductor. By controlling the light intensity, the potential and the doping level, a <span class="hlt">porous</span> layer is formed in the semiconductor and thus one produces <span class="hlt">porous</span> SiC.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/27352035','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/27352035"><span id="translatedtitle">Exploring the <span class="hlt">impacts</span> of factors contributing to tram-<span class="hlt">involved</span> serious injury crashes on Melbourne tram routes.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Naznin, Farhana; Currie, Graham; Logan, David</p> <p>2016-09-01</p> <p>Previous research is limited regarding factors influencing tram-<span class="hlt">involved</span> serious injury crashes. The aim of this study is to identify key vehicle, road, environment and driver related factors associated with tram-<span class="hlt">involved</span> serious injury crashes. Using a binary logistic regression modelling approach, the following factors were identified to be significant in influencing tram-<span class="hlt">involved</span> fatal crashes in Melbourne: tram floor height, tram age, season, traffic volume, tram lane priority and tram travel speed. Low floor trams, older trams, tram priority lanes and higher tram travelling speeds are more likely to increase tram-<span class="hlt">involved</span> fatal crashes. Higher traffic volume decreases the likelihood of serious crashes. Fatal crashes are more likely to occur during spring and summer. Findings from this study may offer ideas for future research in the area of tram safety and help to develop countermeasures to prevent specific fatality types from occurring. PMID:27352035</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/1013836','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/1013836"><span id="translatedtitle">Method to prepare nanoparticles on <span class="hlt">porous</span> mediums</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Vieth, Gabriel M [Knoxville, TN; Dudney, Nancy J [Oak Ridge, TN; Dai, Sheng [Knoxville, TN</p> <p>2010-08-10</p> <p>A method to prepare <span class="hlt">porous</span> medium decorated with nanoparticles <span class="hlt">involves</span> contacting a suspension of nanoparticles in an ionic liquid with a <span class="hlt">porous</span> medium such that the particles diffuse into the pores of the medium followed by heating the resulting composition to a temperature equal to or greater than the thermal decomposition temperature of the ionic liquid resulting in the removal of the liquid portion of the suspension. The nanoparticles can be a metal, an alloy, or a metal compound. The resulting compositions can be used as catalysts, sensors, or separators.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/1037524','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/1037524"><span id="translatedtitle"><span class="hlt">Porous</span> Organic Molecular Materials</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Tian, Jian; Thallapally, Praveen K.; McGrail, B. Peter</p> <p>2012-01-01</p> <p>Most nanoporous materials with molecular-scale pores are extended frameworks composed of directional covalent or coordination bonding, such as <span class="hlt">porous</span> metal-organic frameworks and organic network polymers. By contrast, nanoporous materials comprised of discrete organic molecules, between which there are only weak non-covalent interactions, are seldom encountered. Indeed, most organic molecules pack efficiently in the solid state to minimize the void volume, leading to non-<span class="hlt">porous</span> materials. In recent years, a significant number of nanoporous organic molecular materials, which may be either crystalline or amorphous, have been confirmed by the studies of gas adsorption and they are surveyed in this Highlight. In addition, the possible advantages of <span class="hlt">porous</span> organic molecular materials over <span class="hlt">porous</span> networks are discussed.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26207673','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26207673"><span id="translatedtitle">The <span class="hlt">impact</span> of practical support on parental bereavement: Reflections from a study <span class="hlt">involving</span> parents bereaved through military death.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Rolls, Liz; Harper, Mairi</p> <p>2016-01-01</p> <p>This article, drawing on data from a wider study, describes the <span class="hlt">impact</span> that U.K. bereaved military parents ascribe to the practical support (help with home and garden maintenance) that they received following the death of their son. The type of practical support offered to parents has had a wide-ranging and significant <span class="hlt">impact</span> on them. In addition to helping them find meaning and maintain continuing bonds, this form of support contributed to their capacity to engage in restoration-focused coping. As a symbolic resource, this type of practical support may be a significant moderator of distress in the psychosocial transition of bereavement. PMID:26207673</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/1018059','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/1018059"><span id="translatedtitle">Metal filled <span class="hlt">porous</span> carbon</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Gross, Adam F.; Vajo, John J.; Cumberland, Robert W.; Liu, Ping; Salguero, Tina T.</p> <p>2011-03-22</p> <p>A <span class="hlt">porous</span> carbon scaffold with a surface and pores, the <span class="hlt">porous</span> carbon scaffold containing a primary metal and a secondary metal, where the primary metal is a metal that does not wet the surface of the pores of the carbon scaffold but wets the surface of the secondary metal, and the secondary metal is interspersed between the surface of the pores of the carbon scaffold and the primary metal.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/20080004302','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/20080004302"><span id="translatedtitle"><span class="hlt">Porous</span> airfoil and process</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Hartwich, Peter M. (Inventor)</p> <p>1992-01-01</p> <p>A <span class="hlt">porous</span> airfoil having venting cavities with contoured barrier walls, formed by a core piece, placed beneath a <span class="hlt">porous</span> upper and lower surface area that stretches over the nominal chord of an airfoil is employed, to provide an airfoil configuration that becomes self-adaptive to very dissimilar flow conditions to thereby improve the lift and drag characteristics of the airfoil at both subcritical and supercritical conditions.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005JSG....27.1469J&link_type=ABSTRACT','NASAADS'); return false;" href="http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005JSG....27.1469J&link_type=ABSTRACT"><span id="translatedtitle">The <span class="hlt">impact</span> of syn-faulting porosity reduction on damage zone architecture in <span class="hlt">porous</span> sandstone: an outcrop example from the Moab Fault, Utah</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Johansen, Tord Erlend Skeie; Fossen, Haakon; Kluge, Richard</p> <p>2005-08-01</p> <p>Deformation structures in the Jurassic Moab Member of the Entrada Sandstone have been studied in the Courthouse area where two major fault segments (Segments A and B) of the Moab Fault are connected. Field data show that Segment A developed from an early stage of (thick) deformation band formation and that distinctively thinner deformation bands and fractures were subsequently added to its damage zone at a later stage. Only the second stage is expressed along Segment B. Geometric and kinematic evidence indicates that Segment B linked with Segment A at the time when Segment A (and its thick deformation bands) was already present in the Courthouse area. We attribute the transition from thick deformation bands to thin deformation bands to pore-space reduction caused by syn-faulting quartz dissolution and precipitation that changed the mechanical properties of the rock. In this model, thin deformation bands formed as porosity was reduced during quartz diagenesis. The observations underscore the importance of syn-kinematic diagenetic changes and the variation in small-scale structures along faults that apparently formed during the same faulting event in <span class="hlt">porous</span> sandstones.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015JPS...287..422T','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015JPS...287..422T"><span id="translatedtitle"><span class="hlt">Impact</span> of micro-<span class="hlt">porous</span> layer on liquid water distribution at the catalyst layer interface and cell performance in a polymer electrolyte membrane fuel cell</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Tabe, Yutaka; Aoyama, Yusuke; Kadowaki, Kazumasa; Suzuki, Kengo; Chikahisa, Takemi</p> <p>2015-08-01</p> <p>In polymer electrolyte membrane fuel cells, a gas diffusion layer (GDL) with a micro-<span class="hlt">porous</span> layer (MPL) gives better anti-flooding performance than GDLs without an MPL. To investigate the function and mechanism of the MPL to suppress water flooding, the liquid water distribution at the cathode catalyst layer (CL) surface are observed by a freezing method; in the method liquid water is immobilized in ice form by rapid freezing, followed by disassembling the cell for observations. The ice covered area is quantified by image processing and cells with and without an MPL are compared. The results show that the MPL suppresses water accumulation at the interface due to smaller pore size and finer contact with the CL, and this results in less water flooding. Investigation of ice formed after -10 °C cold start shutdowns and the temporary performance deterioration at ordinary temperatures also indicates a significant influence of the liquid water accumulating at the interface. The importance of the fine contact between CL and MPL, the relative absence of gaps, is demonstrated by a gas diffusion electrode (GDE) which is directly coated with catalyst ink on the surface of the MPL achieving finer contact of the layers.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=Msds&pg=2&id=EJ780334','ERIC'); return false;" href="http://eric.ed.gov/?q=Msds&pg=2&id=EJ780334"><span id="translatedtitle">The <span class="hlt">Impact</span> of Partner Training on the Communicative <span class="hlt">Involvement</span> of Students with Multiple and Severe Disability in Special Schools</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Foreman, Phil; Arthur-Kelly, Michael; Pascoe, Sue</p> <p>2007-01-01</p> <p>Background: The outcomes of a pilot program of staff development in communication support in the context of observed changes in student behaviour states and interactive abilities are reported. Participant reports about the <span class="hlt">impact</span> of the program on their professional practices are included. Method: Six teachers and six teacher aides in special…</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_6");'>6</a></li> <li><a href="#" onclick='return showDiv("page_7");'>7</a></li> <li class="active"><span>8</span></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li><a href="#" onclick='return showDiv("page_10");'>10</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_8 --> <div id="page_9" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_7");'>7</a></li> <li><a href="#" onclick='return showDiv("page_8");'>8</a></li> <li class="active"><span>9</span></li> <li><a href="#" onclick='return showDiv("page_10");'>10</a></li> <li><a href="#" onclick='return showDiv("page_11");'>11</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="161"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=KREBS&pg=5&id=EJ842258','ERIC'); return false;" href="http://eric.ed.gov/?q=KREBS&pg=5&id=EJ842258"><span id="translatedtitle">The <span class="hlt">Impact</span> of Residential and Nonresidential Drug Treatment on Recidivism among Drug-<span class="hlt">Involved</span> Probationers: A Survival Analysis</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Krebs, Christopher P.; Strom, Kevin J.; Koetse, Willem H.; Lattimore, Pamela K.</p> <p>2009-01-01</p> <p>A variety of approaches for addressing drug use and drug-related crime among the nearly 5 million offenders on community supervision in the United States has been tried and evaluated, but questions remain about which policies or programs are most effective. The authors use a large data set to assess the <span class="hlt">impact</span> of residential and nonresidential…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=characteristic+AND+academic+AND+success&id=EJ1051177','ERIC'); return false;" href="http://eric.ed.gov/?q=characteristic+AND+academic+AND+success&id=EJ1051177"><span id="translatedtitle">The <span class="hlt">Impact</span> of Self-Concept and College <span class="hlt">Involvement</span> on the First-Year Success of Medical Students in China</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Zhou, Ying-Xue; Ou, Chun-Quan; Zhao, Zhi-Tao; Wan, Cheng-Song; Guo, Cui; Li, Li; Chen, Ping-Yan</p> <p>2015-01-01</p> <p>Students' first-year academic success plays a critical role on their overall development in college, which implies the need to concentrate on identifying ways to improve students' first-year academic success. Different from most research on the subject, this study attempted to combine the sociological perspective of college <span class="hlt">impact</span> with a…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=diabete&pg=3&id=EJ1028945','ERIC'); return false;" href="http://eric.ed.gov/?q=diabete&pg=3&id=EJ1028945"><span id="translatedtitle"><span class="hlt">Impact</span> of a District-Wide Diabetes Prevention Programme <span class="hlt">Involving</span> Health Education for Children and the Community</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Sheeladevi, Sethu; Sagar, Jayanthi; Pujari, Siddharth; Rani, Padmaja Kumari</p> <p>2014-01-01</p> <p>Objective: To present results from a district-wide diabetes prevention programme <span class="hlt">involving</span> health education for school children and the local community. Method: The model of health education that was utilized aimed to secure lifestyle changes and the identification of diabetes risk by school children (aged 9-12 years). The children acted as health…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/20030059013','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/20030059013"><span id="translatedtitle">Application of Passive <span class="hlt">Porous</span> Treatment to Slat Trailing Edge Noise</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Khorrami, Mehdi R.; Choudhari, Meelan M.</p> <p>2003-01-01</p> <p><span class="hlt">Porous</span> trailing-edge treatment is investigated as a passive means for slat noise reduction by using time-accurate simulations based on Reynolds-averaged Navier-Stokes equations. For the model scale high-lift configuration used during previous experiments in the Low-Turbulence Pressure Tunnel at NASA Langley Research Center, application of the proposed treatment over a minute fraction of the slat surface area is shown to mitigate the noise <span class="hlt">impact</span> of the trailing edge, with no measurable aerodynamic penalty. Assessment of the pressure fluctuations in the vicinity of the treated edge indicates a potential noise reduction in excess of 20 dB. The primary mechanism underlying this reduction is related to the reduced strength of Strouhal shedding from the finite thickness trailing edge. A secondary effect of the treatment <span class="hlt">involves</span> an upward shift in the Strouhal-shedding frequency to a frequency band of reduced auditory sensitivity in a full-scale application.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2016JaJAP..55bBD03M','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2016JaJAP..55bBD03M"><span id="translatedtitle">Luminescence stability of <span class="hlt">porous</span> Si terminated by hydrophilic organic molecules</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Matsumoto, Kimihisa; Kamiguchi, Masao; Kamiya, Kazuhide; Nomura, Takashi; Suzuki, Shinya</p> <p>2016-02-01</p> <p>The effects of the surface termination of a <span class="hlt">porous</span> Si surface by propionic acid and by undecylenic acid on their hydrophilicity and luminescence stability were studied. In the measurements of the contact angle of water droplets on <span class="hlt">porous</span> Si films, the hydrophilicity of <span class="hlt">porous</span> Si is improved by the surface termination each types of organic molecule. The PL intensity of as-prepared <span class="hlt">porous</span> Si decreased with increasing aging time in ambient air. As PL quenching <span class="hlt">involves</span> PL blue shift and increasing Si-O bonds density, nonradiative recombination centers are formed in the surface oxide. After the hydrosilylation process of propionic acid and undecylenic acid, PL intensity decreased and became 30% that of as-prepared <span class="hlt">porous</span> Si film. However, the PL intensity was stable and exceeded that of the as-prepared film after 1000 min of aging in the ambient air. The PL stabilities are contributed to the termination by organic molecules that inhibits surface oxidation.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015EGUGA..17.7204C','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015EGUGA..17.7204C"><span id="translatedtitle">Influence of permeability anisotropy on mixing controlled reactive transport simulations in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Chiogna, Gabriele; Herrera, Paulo</p> <p>2015-04-01</p> <p>Several studies have demonstrated how plume deformation induced by flow heterogeneity in <span class="hlt">porous</span> media can enhance mixing of reactants. This enhancement can have important <span class="hlt">impact</span> on mixing controlled reactions such a biodegradation of plumes of organic compounds. On the other hand, recent studies have indicated the possibility of observing complex flow topology on groundwater flow that occurs in anisotropic yet homogenous <span class="hlt">porous</span> media. Moreover, it has been demonstrated that those complex flow topologies can also enhance solute mixing. We study the effect of medium anisotropy on reactive solute transport for the case of a chemical reactor composed of two homogeneous anisotropic layers. We simulate different injection strategies for different chemical reactions that <span class="hlt">involve</span> two reactants. We demonstrate the effect of the medium anisotropy by analyzing the results of the simulations and identify best strategies for the operation and design of the system to maximize reaction rates. These findings could have potential application in the design of new remediation systems for contaminated groundwater, chemical reactors and other engineering problems that <span class="hlt">involve</span> flow through <span class="hlt">porous</span> media.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015HMT....51..313M','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015HMT....51..313M"><span id="translatedtitle">Scaling heat and mass flow through <span class="hlt">porous</span> media during pyrolysis</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Maes, Julien; Muggeridge, Ann H.; Jackson, Matthew D.; Quintard, Michel; Lapene, Alexandre</p> <p>2015-03-01</p> <p>The modelling of heat and mass flow through <span class="hlt">porous</span> media in the presence of pyrolysis is complex because various physical and chemical phenomena need to be represented. In addition to the transport of heat by conduction and convection, and the change of properties with varying pressure and temperature, these processes <span class="hlt">involve</span> transport of mass by convection, evaporation, condensation and pyrolysis chemical reactions. Examples of such processes include pyrolysis of wood, thermal decomposition of polymer composite and in situ upgrading of heavy oil and oil shale. The behaviours of these systems are difficult to predict as relatively small changes in the material composition can significantly change the thermophysical properties. Scaling reduces the number of parameters in the problem statement and quantifies the relative importance of the various dimensional parameters such as permeability, thermal conduction and reaction constants. This paper uses inspectional analysis to determine the minimum number of dimensionless scaling groups that describe the decomposition of a solid <span class="hlt">porous</span> material into a gas in one dimension. Experimental design is then used to rank these scaling groups in terms of their importance in describing the outcome of two example processes: the thermal decomposition of heat shields formed from polymer composites and the in situ upgrading of heavy oils and oil shales. A sensitivity analysis is used to divide these groups into three sets (primary, secondary and insignificant), thus identifying the combinations of solid and fluid properties that have the most <span class="hlt">impact</span> on the performance of the different processes.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4459695','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4459695"><span id="translatedtitle">What Difference Does Patient and Public <span class="hlt">Involvement</span> Make and What Are Its Pathways to <span class="hlt">Impact</span>? Qualitative Study of Patients and Researchers from a Cohort of Randomised Clinical Trials</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Dudley, Louise; Gamble, Carrol; Preston, Jennifer; Buck, Deborah; Hanley, Bec; Williamson, Paula; Young, Bridget</p> <p>2015-01-01</p> <p>Background Patient and public <span class="hlt">involvement</span> (PPI) is advocated in clinical trials yet evidence on how to optimise its <span class="hlt">impact</span> is limited. We explored researchers' and PPI contributors' accounts of the <span class="hlt">impact</span> of PPI within trials and factors likely to influence its <span class="hlt">impact</span>. Methods Semi-structured qualitative interviews with researchers and PPI contributors accessed through a cohort of randomised clinical trials. Analysis of transcripts of audio-recorded interviews was informed by the principles of the constant comparative method, elements of content analysis and informant triangulation. Results We interviewed 21 chief investigators, 10 trial managers and 17 PPI contributors from 28 trials. The accounts of informants within the same trials were largely in agreement. Over half the informants indicted PPI had made a difference within a trial, through contributions that influenced either an aspect of a trial, or how researchers thought about a trial. According to informants, the opportunity for PPI to make a difference was influenced by two main factors: whether chief investigators had goals and plans for PPI and the quality of the relationship between the research team and the PPI contributors. Early <span class="hlt">involvement</span> of PPI contributors and including them in responsive (e.g. advisory groups) and managerial (e.g. trial management groups) roles were more likely to achieve <span class="hlt">impact</span> compared to late <span class="hlt">involvement</span> and oversight roles (e.g. trial steering committees). Conclusion Those seeking to enhance PPI in trials should develop goals for PPI at an early stage that fits the needs of the trial, plan PPI implementation in accordance with these goals, invest in developing good relationships between PPI contributors and researchers, and favour responsive and managerial roles for contributors in preference to oversight-only roles. These features could be used by research funders in judging PPI in trial grant applications and to inform policies to optimise PPI within trials. PMID:26053063</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/20372729','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/20372729"><span id="translatedtitle">Molecular diffusion in <span class="hlt">porous</span> media by PGSE ESR.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Talmon, Yael; Shtirberg, Lazar; Harneit, Wolfgang; Rogozhnikova, Olga Yu; Tormyshev, Victor; Blank, Aharon</p> <p>2010-06-21</p> <p>Diffusion in <span class="hlt">porous</span> media is a general subject that <span class="hlt">involves</span> many fields of research, such as chemistry (e.g. <span class="hlt">porous</span> catalytic pallets), biology (e.g. <span class="hlt">porous</span> cellular organelles), and materials science (e.g. <span class="hlt">porous</span> polymer matrixes for controlled-release and gas-storage materials). Pulsed-gradient spin-echo nuclear magnetic resonance (PGSE NMR) is a powerful technique that is often employed to characterize complex diffusion patterns inside <span class="hlt">porous</span> media. Typically it measures the motion of at least approximately 10(15) molecules occurring in the milliseconds-to-seconds time scale, which can be used to characterize diffusion in <span class="hlt">porous</span> media with features of approximately 2-3 mum and above (in common aqueous environments). Electron Spin Resonance (ESR), which operates in the nanoseconds-to-microseconds time scale with much better spin sensitivity, can in principle be employed to measure complex diffusion patterns in <span class="hlt">porous</span> media with much finer features (down to approximately 10 nm). However, up to now, severe technical constraints precluded the adaptation of PGSE ESR to <span class="hlt">porous</span> media research. In this work we demonstrate for the first time the use of PGSE ESR in the characterization of molecular restricted diffusion in common liquid solutions embedded in a model system for <span class="hlt">porous</span> media made of sub-micron glass spheres. A unique ESR resonator, efficient gradient coils and fast gradient current drivers enable these measurements. This work can be further extended in the future to many applications that <span class="hlt">involve</span> dynamical processes occurring in <span class="hlt">porous</span> media with features in the deep sub-micron range down to true nanometric length scales. PMID:20372729</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/23416226','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/23416226"><span id="translatedtitle">Radioactive characterization of the main materials <span class="hlt">involved</span> in the titanium dioxide production process and their environmental radiological <span class="hlt">impact</span>.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Mantero, J; Gazquez, M J; Bolivar, J P; Garcia-Tenorio, R; Vaca, F</p> <p>2013-06-01</p> <p>A study about the distribution of several radionuclides from the uranium and the thorium series radionuclides along the production process of a typical NORM industry devoted to the production of titanium dioxide has been performed. With this end the activity concentrations in raw materials, final product, co-products, and wastes of the production process have been determined by both gamma-ray and alpha-particle spectrometry. The main raw material used in the studied process (ilmenite) presents activity concentrations of around 300 Bq kg(-1) for Th-series radionuclides and 100 Bq kg(-1) for the U-series ones. These radionuclides in the industrial process are distributed in the different steps of the production process according mostly to the chemical behaviour of each radioelement, following different routes. As an example, most of the radium remains associated with the un-dissolved material waste, with activity concentrations around 3 kBq kg(-1) of (228)Ra and around 1 kBq kg(-1) of (226)Ra, while the final commercial products (TiO2 pigments and co-products) contain negligible amounts of radioactivity. The obtained results have allowed assessing the possible public radiological <span class="hlt">impact</span> associated with the use of the products and co-products obtained in this type of industry, as well as the environmental radiological <span class="hlt">impact</span> associated with the solid residues and liquid generated discharges. PMID:23416226</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/230563','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/230563"><span id="translatedtitle">Parametric study of boiling heat transfer in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Shi, B.; Jones, B.G.; Pan, C.</p> <p>1996-04-01</p> <p>Detailed numerical modeling and parametric variation studies were conducted on boiling heat transfer processes in <span class="hlt">porous</span> deposits with emphasis on applications associated with light water nuclear power reactor systems. The processes of boiling heat transfer in the <span class="hlt">porous</span> corrosion deposits typically <span class="hlt">involve</span> phase changes in finite volumetric regions in the <span class="hlt">porous</span> media. The study examined such processes in two <span class="hlt">porous</span> media configurations, without chimneys (homogeneous <span class="hlt">porous</span> structures) and with chimneys (heterogeneous <span class="hlt">porous</span> structures). A 1-D model and a 2-D model were developed to simulate two-phase flows with phase changes, without dry-out, inside the <span class="hlt">porous</span> media for both structural configurations. For closure of the governing equations, an empirical correlation of the evaporation rate for phase changes inside the <span class="hlt">porous</span> media was introduced. In addition, numerical algorithms were developed to solve the coupled nonlinear equations of mass, momentum, energy, capillary pressure, and evaporation rate. The distributions of temperature, thermodynamic saturation, liquid pressure, vapor pressure, liquid velocity, and vapor velocity were predicted. Furthermore, the effects of heat flux, system pressure, porosity, particle diameter, chimney population density, chimney radius, and crud thickness on the all superheat, critical heat flux, and minimum saturation were examined. The predictions were found to be in good agreement with the available experimental results.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/24629567','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/24629567"><span id="translatedtitle">Attitudes toward hiring applicants with mental illness and criminal justice <span class="hlt">involvement</span>: the <span class="hlt">impact</span> of education and experience.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Batastini, Ashley B; Bolanos, Angelea D; Morgan, Robert D</p> <p>2014-01-01</p> <p>Individuals with mental health diagnoses, as well as those <span class="hlt">involved</span> in the criminal justice system, experience a number of barriers in the recovery and reintegration progress, including access to stable, prosocial employment opportunities. Employment for these populations is important for establishing financial security, reducing unstructured leisure time, increasing self-worth, and improving interpersonal skills. However, research has demonstrated that individuals with psychiatric and/or criminal backgrounds may experience stigmatizing attitudes from employers that impede their ability to find adequate work. This study aimed to evaluate stigmatizing beliefs toward hypothetical applicants who indicated a mental health history, a criminal history, or both, as well as the effectiveness of psychoeducation in reducing stigma. Participants consisted of 465 individuals recruited from a large university who completed a series of online questions about a given applicant. Results of this study varied somewhat across measures of employability, but were largely consistent with extant research suggesting that mental illness and criminal justice <span class="hlt">involvement</span> serve as deterrents when making hiring decisions. Overall, psychoeducation appeared to reduce stigma for hiring decisions when the applicant presented with a criminal history. Unfortunately, similar findings were not revealed when applicants presented with a psychiatric or a psychiatric and criminal history. Implications and limitations of these findings are presented, along with suggestions for future research. PMID:24629567</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/5866567','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/5866567"><span id="translatedtitle">Foams in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Marsden, S.S.</p> <p>1986-07-01</p> <p>In 1978 a literature search on selective blocking of fluid flow in <span class="hlt">porous</span> media was done by Professor S.S. Marsden and two of his graduate students, Tom Elson and Kern Huppy. This was presented as SUPRI Report No. TR-3 entitled ''Literature Preview of the Selected Blockage of Fluids in Thermal Recovery Projects.'' Since then a lot of research on foam in <span class="hlt">porous</span> media has been done on the SUPRI project and a great deal of new information has appeared in the literature. Therefore we believed that a new, up-to-date search should be done on foam alone, one which would be helpful to our students and perhaps of interest to others. This is a chronological survey showing the development of foam flow, blockage and use in <span class="hlt">porous</span> media, starting with laboratory studies and eventually getting into field tests and demonstrations. It is arbitrarily divided into five-year time periods. 81 refs.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/1040878','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/1040878"><span id="translatedtitle"><span class="hlt">Porous</span> material neutron detector</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Diawara, Yacouba; Kocsis, Menyhert</p> <p>2012-04-10</p> <p>A neutron detector employs a <span class="hlt">porous</span> material layer including pores between nanoparticles. The composition of the nanoparticles is selected to cause emission of electrons upon detection of a neutron. The nanoparticles have a maximum dimension that is in the range from 0.1 micron to 1 millimeter, and can be sintered with pores thereamongst. A passing radiation generates electrons at one or more nanoparticles, some of which are scattered into a pore and directed toward a direction opposite to the applied electrical field. These electrons travel through the pore and collide with additional nanoparticles, which generate more electrons. The electrons are amplified in a cascade reaction that occurs along the pores behind the initial detection point. An electron amplification device may be placed behind the <span class="hlt">porous</span> material layer to further amplify the electrons exiting the <span class="hlt">porous</span> material layer.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=104339&keyword=Physics+AND+engineers&actType=&TIMSType=+&TIMSSubTypeID=&DEID=&epaNumber=&ntisID=&archiveStatus=Both&ombCat=Any&dateBeginCreated=&dateEndCreated=&dateBeginPublishedPresented=&dateEndPublishedPresented=&dateBeginUpdated=&dateEndUpdated=&dateBeginCompleted=&dateEndCompleted=&personID=&role=Any&journalID=&publisherID=&sortBy=revisionDate&count=50&CFID=65335586&CFTOKEN=47685152','EPA-EIMS'); return false;" href="http://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=104339&keyword=Physics+AND+engineers&actType=&TIMSType=+&TIMSSubTypeID=&DEID=&epaNumber=&ntisID=&archiveStatus=Both&ombCat=Any&dateBeginCreated=&dateEndCreated=&dateBeginPublishedPresented=&dateEndPublishedPresented=&dateBeginUpdated=&dateEndUpdated=&dateBeginCompleted=&dateEndCompleted=&personID=&role=Any&journalID=&publisherID=&sortBy=revisionDate&count=50&CFID=65335586&CFTOKEN=47685152"><span id="translatedtitle">FLUID TRANSPORT THROUGH <span class="hlt">POROUS</span> MEDIA</span></a></p> <p><a target="_blank" href="http://oaspub.epa.gov/eims/query.page">EPA Science Inventory</a></p> <p></p> <p></p> <p>Fluid transport through <span class="hlt">porous</span> media is a relevant topic to many scientific and engineering fields. Soil scientists, civil engineers, hydrologists and hydrogeologists are concerned with the transport of water, gases and nonaqueous phase liquid contaminants through <span class="hlt">porous</span> earth m...</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://ntrs.nasa.gov/search.jsp?R=19910000511&hterms=porous+silicon&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D40%26Ntt%3Dporous%2Bsilicon','NASA-TRS'); return false;" href="http://ntrs.nasa.gov/search.jsp?R=19910000511&hterms=porous+silicon&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D40%26Ntt%3Dporous%2Bsilicon"><span id="translatedtitle">Chemically Layered <span class="hlt">Porous</span> Solids</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Koontz, Steve</p> <p>1991-01-01</p> <p>Aerogels and other <span class="hlt">porous</span> solids in which surfaces of pores have chemical properties varying with depth below macroscopic surfaces prepared by sequences of chemical treatments. <span class="hlt">Porous</span> glass or silica bead treated to make two depth zones having different chemical properties. Beads dropped along tube filled with flowing gas containing atomic oxygen, generated in microwave discharge. General class of materials treatable include oxides of aluminum, silicon, zirconium, tin, titanium, and nickel, and mixtures of these oxides. Potential uses of treated materials include chromatographic separations, membrane separations, controlled releases of chemicals, and catalysis.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/416137','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/416137"><span id="translatedtitle"><span class="hlt">Porous</span> silicon gettering</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Tsuo, Y.S.; Menna, P.; Pitts, J.R.</p> <p>1996-05-01</p> <p>The authors have studied a novel extrinsic gettering method that uses the large surface areas produced by a <span class="hlt">porous</span>-silicon etch as gettering sites. The annealing step of the gettering used a high-flux solar furnace. They found that a high density of photons during annealing enhanced the impurity diffusion to the gettering sites. The authors used metallurgical-grade Si (MG-Si) prepared by directional solidification casing as the starting material. They propose to use <span class="hlt">porous</span>-silicon-gettered MG-Si as a low-cost epitaxial substrate for polycrystalline silicon thin-film growth.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/1289998','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/1289998"><span id="translatedtitle"><span class="hlt">Porous</span> block nanofiber composite filters</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Ginley, David S.; Curtis, Calvin J.; Miedaner, Alexander; Weiss, Alan J.; Paddock, Arnold</p> <p>2016-08-09</p> <p><span class="hlt">Porous</span> block nano-fiber composite (110), a filtration system (10) and methods of using the same are disclosed. An exemplary <span class="hlt">porous</span> block nano-fiber composite (110) includes a <span class="hlt">porous</span> block (100) having one or more pores (200). The <span class="hlt">porous</span> block nano-fiber composite (110) also includes a plurality of inorganic nano-fibers (211) formed within at least one of the pores (200).</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/757583','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/757583"><span id="translatedtitle">A rigid <span class="hlt">porous</span> filter and filtration method</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Chiang, Ta-Kuan; Straub, Douglas, Straub L.; Dennis, Richard A.</p> <p>1998-12-01</p> <p>The present invention <span class="hlt">involves</span> a <span class="hlt">porous</span> rigid filter comprising a plurality of concentric filtration elements having internal flow passages and forming external flow passages there between. The present invention also <span class="hlt">involves</span> a pressure vessel containing the filter for the removal of particulate from high pressure particulate containing gases, and further <span class="hlt">involves</span> a method for using the filter to remove such particulate. The present filter has the advantage of requiring fewer filter elements due to the high surface area- to-volume ratio provided by the filter, requires a reduced pressure vessel size, and exhibits enhanced mechanical design properties, improved cleaning properties, configuration options, modularity and ease of fabrication.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2014WRR....50.3933A','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2014WRR....50.3933A"><span id="translatedtitle">Analysis of the <span class="hlt">impact</span> of surface layer properties on evaporation from <span class="hlt">porous</span> systems using column experiments and modified definition of characteristic length</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Assouline, Shmuel; Narkis, Kfir; Gherabli, Rivka; Lefort, Philippe; Prat, Marc</p> <p>2014-05-01</p> <p>The hydraulic properties of the layer at the vicinity of the soil surface have significant <span class="hlt">impact</span> on evaporation and could be harnessed to reduce water losses. The effect of the properties of the upper layer on the evolution of phase distribution during the evaporation process is first illustrated from three-dimensional pore network simulations. This effect is then studied from experiments carried out on soil columns under laboratory conditions. Comparisons between homogeneous columns packed with coarse (sand) and fine (sandy loam) materials and heterogeneous columns packed with layers of fine overlying coarse material and coarse overlying fine material of different thicknesses are performed to assess the <span class="hlt">impact</span> of upper layer properties on evaporation. Experiments are analyzed using the classical approach based on the numerical solution of Richards equation and semianalytical theoretical predictions. The theoretical analysis is based on the clear distinction between two drying regimes, namely, the capillary regime and the gravity-capillary regime, which are the prevailing regimes in our experiments. Simple relationships enabling to estimate the duration of stage 1 evaporation (S1) for both regimes are proposed. In particular, this led to defining the characteristic length for the gravity-capillary regime from the consideration of viscous effects at low water content differently from available expressions. The duration of S1, during which most of the water losses occur, for both the homogeneous and two-layer columns is presented and discussed. Finally, the <span class="hlt">impact</span> of liquid films and its consequences on the soil hydraulic conductivity function are briefly discussed.</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_7");'>7</a></li> <li><a href="#" onclick='return showDiv("page_8");'>8</a></li> <li class="active"><span>9</span></li> <li><a href="#" onclick='return showDiv("page_10");'>10</a></li> <li><a href="#" onclick='return showDiv("page_11");'>11</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_9 --> <div id="page_10" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_8");'>8</a></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li class="active"><span>10</span></li> <li><a href="#" onclick='return showDiv("page_11");'>11</a></li> <li><a href="#" onclick='return showDiv("page_12");'>12</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="181"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3796997','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3796997"><span id="translatedtitle"><span class="hlt">Porous</span> metal for orthopedics implants</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Matassi, Fabrizio; Botti, Alessandra; Sirleo, Luigi; Carulli, Christian; Innocenti, Massimo</p> <p>2013-01-01</p> <p>Summary <span class="hlt">Porous</span> metal has been introduced to obtain biological fixation and improve longevity of orthopedic implants. The new generation of <span class="hlt">porous</span> metal has intriguing characteristics that allows bone healing and high osteointegration of the metallic implants. This article gives an overview about biomaterials properties of the contemporary class of highly <span class="hlt">porous</span> metals and about the clinical use in orthopaedic surgery. PMID:24133527</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26500837','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26500837"><span id="translatedtitle">Analysis by a highly sensitive split luciferase assay of the regions <span class="hlt">involved</span> in APP dimerization and its <span class="hlt">impact</span> on processing.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Decock, Marie; El Haylani, Laetitia; Stanga, Serena; Dewachter, Ilse; Octave, Jean-Noël; Smith, Steven O; Constantinescu, Stefan N; Kienlen-Campard, Pascal</p> <p>2015-01-01</p> <p>Alzheimer's disease (AD) is a neurodegenerative disease that causes progressive loss of cognitive functions, leading to dementia. Two types of lesions are found in AD brains: neurofibrillary tangles and senile plaques. The latter are composed mainly of the β-amyloid peptide (Aβ) generated by amyloidogenic processing of the amyloid precursor protein (APP). Several studies have suggested that dimerization of APP is closely linked to Aβ production. Nevertheless, the mechanisms controlling APP dimerization and their role in APP function are not known. Here we used a new luciferase complementation assay to analyze APP dimerization and unravel the <span class="hlt">involvement</span> of its three major domains: the ectodomain, the transmembrane domain and the intracellular domain. Our results indicate that within cells full-length APP dimerizes more than its α and β C-terminal fragments, confirming the pivotal role of the ectodomain in this process. Dimerization of the APP transmembrane (TM) domain has been reported to regulate processing at the γ-cleavage site. We show that both non-familial and familial AD mutations in the TM GXXXG motifs strongly modulate Aβ production, but do not consistently change dimerization of the C-terminal fragments. Finally, we found for the first time that removal of intracellular domain strongly increases APP dimerization. Increased APP dimerization is linked to increased non-amyloidogenic processing. PMID:26500837</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/22011916','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/22011916"><span id="translatedtitle">NUMERICAL MODELING OF THE 2009 <span class="hlt">IMPACT</span> EVENT ON JUPITER</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Pond, Jarrad W. T.; Palotai, Csaba; Gabriel, Travis; Harrington, Joseph; Rebeli, Noemi; Korycansky, Donald G.</p> <p>2012-02-01</p> <p>We have investigated the 2009 July <span class="hlt">impact</span> event on Jupiter using the ZEUS-MP 2 three-dimensional hydrodynamics code. We studied the <span class="hlt">impact</span> itself and the following plume development. Eight impactors were considered: 0.5 km and 1 km <span class="hlt">porous</span> ({rho} = 1.760 g cm{sup -3}) and non-<span class="hlt">porous</span> ({rho} = 2.700 g cm{sup -3}) basalt impactors, and 0.5 km and 1 km <span class="hlt">porous</span> ({rho} = 0.600 g cm{sup -3}) and non-<span class="hlt">porous</span> ({rho} = 0.917 g cm{sup -3}) ice impactors. The simulations consisted of these bolides colliding with Jupiter at an incident angle of {theta} = 69 Degree-Sign from the vertical and with an <span class="hlt">impact</span> velocity of v = 61.4 km s{sup -1}. Our simulations show the development of relatively larger, faster plumes created after <span class="hlt">impacts</span> <span class="hlt">involving</span> 1 km diameter bodies. Comparing simulations of the 2009 event with simulations of the Shoemaker-Levy 9 (SL9) events reveals a difference in plume development, with the higher incident angle of the 2009 <span class="hlt">impact</span> leading to a shallower terminal depth and a smaller and slower plume. We also studied the amount of dynamical chaos present in the simulations conducted at the 2009 incident angle. Compared to the chaos of the SL9 simulations, where {theta} Almost-Equal-To 45 Degree-Sign , we find no significant difference in chaos at the higher 2009 incident angle.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/6370269','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/biblio/6370269"><span id="translatedtitle"><span class="hlt">Porous</span> metallic bodies</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Landingham, R.L.</p> <p>1984-03-13</p> <p><span class="hlt">Porous</span> metallic bodies having a substantially uniform pore size of less than about 200 microns and a density of less than about 25 percent theoretical, as well as the method for making them, are disclosed. Group IIA, IIIB, IVB, VB, and rare earth metal hydrides a</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://ntrs.nasa.gov/search.jsp?R=19950065537&hterms=hydrophobic&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D10%26Ntt%3Dhydrophobic','NASA-TRS'); return false;" href="http://ntrs.nasa.gov/search.jsp?R=19950065537&hterms=hydrophobic&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D10%26Ntt%3Dhydrophobic"><span id="translatedtitle">Hydrophobic, <span class="hlt">Porous</span> Battery Boxes</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Bragg, Bobby J.; Casey, John E., Jr.</p> <p>1995-01-01</p> <p>Boxes made of <span class="hlt">porous</span>, hydrophobic polymers developed to contain aqueous potassium hydroxide electrolyte solutions of zinc/air batteries while allowing air to diffuse in as needed for operation. Used on other types of batteries for in-cabin use in which electrolytes aqueous and from which gases generated during operation must be vented without allowing electrolytes to leak out.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=39318&keyword=toner&actType=&TIMSType=+&TIMSSubTypeID=&DEID=&epaNumber=&ntisID=&archiveStatus=Both&ombCat=Any&dateBeginCreated=&dateEndCreated=&dateBeginPublishedPresented=&dateEndPublishedPresented=&dateBeginUpdated=&dateEndUpdated=&dateBeginCompleted=&dateEndCompleted=&personID=&role=Any&journalID=&publisherID=&sortBy=revisionDate&count=50&CFID=62107895&CFTOKEN=54106942','EPA-EIMS'); return false;" href="http://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=39318&keyword=toner&actType=&TIMSType=+&TIMSSubTypeID=&DEID=&epaNumber=&ntisID=&archiveStatus=Both&ombCat=Any&dateBeginCreated=&dateEndCreated=&dateBeginPublishedPresented=&dateEndPublishedPresented=&dateBeginUpdated=&dateEndUpdated=&dateBeginCompleted=&dateEndCompleted=&personID=&role=Any&journalID=&publisherID=&sortBy=revisionDate&count=50&CFID=62107895&CFTOKEN=54106942"><span id="translatedtitle"><span class="hlt">POROUS</span> DIKE INTAKE EVALUATION</span></a></p> <p><a target="_blank" href="http://oaspub.epa.gov/eims/query.page">EPA Science Inventory</a></p> <p></p> <p></p> <p>The report gives results of an evaluation of a <span class="hlt">porous</span> dike intake. A small-scale test facility was constructed and continuously operated for 2 years under field conditions. Two stone dikes of gabion construction were tested: one consisted of 7.5 cm stones; and the other, 20 cm st...</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/27087103','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/27087103"><span id="translatedtitle">Study investigating the <span class="hlt">impact</span> of pharmacist <span class="hlt">involvement</span> on the outcomes of diabetes medication therapy adherence program Malaysia.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Lim, Phei Ching; Lim, Kelvin; Embee, Zubaidah Che; Hassali, Mohamed Azmi; Thiagarajan, Anuradha; Khan, Tahir Mehmood</p> <p>2016-03-01</p> <p><span class="hlt">Involvement</span> of pharmacists in improving medication adherence among diabetic patients is recognized globally. In Malaysian healthcare system, pharmacists are also operating health services i.e. Diabetes Medication Therapy Adherence Clinic (DMTAC). This study aimed to assess the clinical outcomes of patients managed by pharmacists (DMTAC), in a Malaysian hospital setting. This was an open labelled randomised study. Type 2 diabetes patients with HbA1c ≥8% were recruited and arbitrarily divided into the intervention group (usual care plus DMTAC) and the non-intervention group (usual care only). Those enrolled in the intervention group were scheduled for follow-up for eight consecutive visits. Improvements in lab results were compared longitudinally (pre and post analysis) between the groups. Data analysis was done using PASW 18® version. A total of 76 patients were enrolled, with 39 patients in the intervention group and 37 patients in the non-intervention group. Mean HbA1c (-0.90% vs. -0.08%, p=0.011) and fasting blood glucose levels (-3.45 mmol.l vs. +0.79 mmol/l, p=0.002) reduced significantly between the intervention group vs. non-intervention group. Total cholesterol and low-density lipoprotein cholesterol (LDL-C) were also significantly reduced in the intervention group (TC -0.34 mmol/l, p=0.018) (LDL -0.45 mmol/l, p=0.001). In conclusion, pharmacists managed DMTAC significantly improved glycaemic control and lipid profile of diabetic patients. PMID:27087103</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/22056354','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/22056354"><span id="translatedtitle">The <span class="hlt">Impact</span> of Extent and Location of Mediastinal Lymph Node <span class="hlt">Involvement</span> on Survival in Stage III Non-Small Cell Lung Cancer Patients Treated With Definitive Radiotherapy</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Fernandes, Annemarie T.; Mitra, Nandita; Xanthopoulos, Eric; Evans, Tracey; Stevenson, James; Langer, Corey; Kucharczuk, John C.; Lin, Lilie; Rengan, Ramesh</p> <p>2012-05-01</p> <p>Purpose: Several surgical series have identified subcarinal, contralateral, and multilevel nodal <span class="hlt">involvement</span> as predictors of poor overall survival in patients with Stage III non-small-cell lung cancer (NSCLC) treated with definitive resection. This retrospective study evaluates the <span class="hlt">impact</span> of extent and location of mediastinal lymph node (LN) <span class="hlt">involvement</span> on survival in patients with Stage III NSCLC treated with definitive radiotherapy. Methods and Materials: We analyzed 106 consecutive patients with T1-4 N2-3 Stage III NSCLC treated with definitive radiotherapy at University of Pennsylvania between January 2003 and February 2009. For this analysis, mediastinal LN stations were divided into four mutually exclusive groups: supraclavicular, ipsilateral mediastinum, contralateral mediastinum, and subcarinal. Patients' conditions were then analyzed according to the extent of <span class="hlt">involvement</span> and location of mediastinal LN stations. Results: The majority (88%) of patients received sequential or concurrent chemotherapy. The median follow-up time for survivors was 32.6 months. By multivariable Cox modeling, chemotherapy use (hazard ratio [HR]: 0.21 [95% confidence interval (CI): 0.07-0.63]) was associated with improved overall survival. Increasing primary tumor [18F]-fluoro-2-deoxy-glucose avidity (HR: 1.11 [CI: 1.06-1.19]), and subcarinal <span class="hlt">involvement</span> (HR: 2.29 [CI: 1.11-4.73]) were significant negative predictors of overall survival. On univariate analysis, contralateral nodal <span class="hlt">involvement</span> (HR: 0.70 [CI: 0.33-1.47]), supraclavicular nodal <span class="hlt">involvement</span> (HR: 0.78 [CI: 0.38-1.67]), multilevel nodal <span class="hlt">involvement</span> (HR: 0.97 [CI: 0.58-1.61]), and tumor size (HR: 1.04 [CI: 0.94-1.14]) did not predict for overall survival. Patients with subcarinal <span class="hlt">involvement</span> also had lower rates of 2-year nodal control (51.2% vs. 74.9%, p = 0.047) and 2-year distant control (28.4% vs. 61.2%, p = 0.043). Conclusions: These data suggest that the factors that determine oncologic outcome in Stage III NSCLC</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/19437439','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/19437439"><span id="translatedtitle">Bone ingrowth into <span class="hlt">porous</span> silicon nitride.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Anderson, M C; Olsen, R</p> <p>2010-03-15</p> <p>Achieving solid skeletal attachment is a requirement for the clinical success of orthopedic implants. <span class="hlt">Porous</span> or roughened surfaces and coatings have been developed and used with mixed success to achieve attachment due to bone ingrowth. Silicon nitride is a high performance ceramic whose strength, imaging properties, and biocompatibility make it a candidate material for orthopedic implants. A <span class="hlt">porous</span> form of silicon nitride, cancellous-structured ceramic (CSC), has been developed. CSC is a nonresorbable, partially radiolucent <span class="hlt">porous</span> structure that can be bonded to orthopedic implants made of silicon nitride to facilitate skeletal attachment. The purpose of this study was to quantify the extent and rate of bone ingrowth into CSC in a large animal model. Cylindrical implants were placed bilaterally using staged surgeries in the medial femoral condyle of six sheep. Condyles were retrieved after 3 and 6 months in situ and prepared for examination of bone growth under SEM. Bone grew into CSC to extents and at rates similar to those reported for other titanium <span class="hlt">porous</span> surfaces in studies <span class="hlt">involving</span> large animals and postmortem retrievals in humans. Bone ingrowth was observed at depths of penetration greater than 3 mm in some implants after only 12 weeks in situ. Bone ingrowth into CSC is a viable method for achieving skeletal attachment. PMID:19437439</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/927603','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/927603"><span id="translatedtitle">SRNL <span class="hlt">POROUS</span> WALL GLASS MICROSPHERES</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Wicks, G; Leung Heung, L; Ray Schumacher, R</p> <p>2008-04-15</p> <p>The Savannah River National Laboratory (SRNL) has developed a new medium for storage of hydrogen and other gases. This <span class="hlt">involves</span> fabrication of thin, <span class="hlt">Porous</span> Walled, Hollow Glass Microspheres (PW-HGMs), with diameters generally in the range of 1 to several hundred microns. What is unique about the glass microballons is that porosity has been induced and controlled within the thin, one micron thick walls, on the scale of 10 to several thousand Angstroms. This porosity results in interesting properties including the ability to use these channels to fill the microballons with special absorbents and other materials, thus providing a contained environment even for reactive species. Gases can now enter the microspheres and be retained on the absorbents, resulting in solid-state and contained storage of even reactive species. Also, the porosity can be altered and controlled in various ways, and even used to filter mixed gas streams within a system. SRNL is <span class="hlt">involved</span> in about a half dozen different programs <span class="hlt">involving</span> these PW-HGMs and an overview of some of these activities and results emerging are presented.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/244573','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/244573"><span id="translatedtitle">Small scale flow processes in aqueous heterogeneous <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Rashidi, M.; Dickenson, E.</p> <p>1996-04-01</p> <p>Small scale flow processes in aqueous heterogeneous <span class="hlt">porous</span> systems have been studied experimentally via novel nonintrusive fluorescence imaging techniques. The techniques <span class="hlt">involve</span> 3D visualization and quantification of flow fields within a refractive index-matched transparent <span class="hlt">porous</span> column. The refractive index-matching yields a transparent <span class="hlt">porous</span> medium, free from any scattering and refraction at the solid-liquid interfaces, as a result allowing direct optical probing at any point within the <span class="hlt">porous</span> system. By illuminating the <span class="hlt">porous</span> regions within the column with a planar sheet of laser beam, flow processes through the <span class="hlt">porous</span> medium can be observed microscopically, and qualitative and quantitative in-pore transport information can be obtained at a good resolution and a good accuracy. A CCD camera is used to record the fluorescent images at every vertical plane location while sweeping back and forth across the column. These digitized flow images are then analyzed and accumulated over a 3D volume within the column. Series of flow experiments in aqueous, refractive index-matched, <span class="hlt">porous</span> systems packed with natural mineral particles have been performed successfully in these laboratories.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2003PhDT........23Z','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2003PhDT........23Z"><span id="translatedtitle"><span class="hlt">Porous</span> bioactive materials</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Zhang, Kai</p> <p></p> <p>Bioactive materials chemically bond to tissues through the development of biologically active apatite. <span class="hlt">Porous</span> structures in biomaterials are designed to enhance bioactivity, grow artificial tissues and achieve better integration with host tissues in the body. The goal of this research is to design, fabricate and characterize novel <span class="hlt">porous</span> bioactive materials. 3D ordered macroporous bioactive glasses (3DOM-BGs, pore size: 200--1000 nm) were prepared using a sol-gel process and colloidal crystal templates. 3DOM-BGs are more bioactive and degradable than mesoporous (pore size <50 nm) sol-gel BGs in simulated body fluid (SBF). Apatite formation and 3DOM-BG degradation rates increased with the decrease of soaking ratio. Apatite induction time in SBF increased with 3DOM-BG calcination temperature (600--800°C). Apatite formation and 3DOMBG degradation were slightly enhanced for a phosphate containing composition. Large 3DOM-BG particles formed less apatite and degraded less completely as compared with small particles. An increase in macropore size slowed down 3DOM-BG degradation and apatite formation processes. After heating the converted apatite at a temperature higher than 700°C, highly crystalline hydroxyapatite and a minor tri-calcium phosphate phase formed. 3DOM-BGs have potential applications as bone/periodontal fillers, and drugs and biological factors delivery agents. Anchoring artificial soft tissues (e.g., cartilage) to native bone presents a challenge. <span class="hlt">Porous</span> polymer/bioactive glass composites are candidate materials for engineering artificial soft tissue/bone interfaces. <span class="hlt">Porous</span> composites consisting of polymer matrices (e.g., polysulfone, polylactide, and polyurethane) and bioactive glass particles were prepared by polymer phase separation techniques adapted to include ceramic particles. Composites (thickness: 200--500 mum) have asymmetric structures with dense top layers and <span class="hlt">porous</span> structures beneath. <span class="hlt">Porous</span> structures consist of large pores (>100 mum) in a</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4377735','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4377735"><span id="translatedtitle">The <span class="hlt">impact</span> of patients’ <span class="hlt">involvement</span> in cooking on their mortality and morbidity: A 19-year follow-up of patients diagnosed with type 2 diabetes mellitus</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Siersma, Volkert; Køster-Rasmussen, Rasmus; Olivarius, Niels De Fine; Waldorff, Frans Boch</p> <p>2015-01-01</p> <p>Abstract Objective. This study explored the <span class="hlt">impact</span> of <span class="hlt">involvement</span> in cooking on long-term morbidity and mortality among patients newly diagnosed with type 2 diabetes mellitus (T2DM). Design and subjects. Data are from the population-based study Diabetes Care in General Practice. In baseline questionnaires, 1348 patients newly diagnosed with T2DM gave information on how frequently they consumed a warm main meal and how often they cooked it themselves. The selected patients were followed up for 19 years in the Danish National Patient Registry and the Danish Register of Causes of Death. Main outcome measures. This study analysed the association between <span class="hlt">involvement</span> in cooking and each of seven pre-specified outcomes was analysed in Cox regression models with stepwise adjustment for possible confounders and mediators. Results. 92% of the patients with T2DM consumed a warm main meal = five times per week. Among these, women who cooked for themselves less than once a week had a higher risk of diabetes-related deaths (HR 1.86 [95% CI 1.03–3.35], p = 0.039) and stroke (HR 2.47 [95% CI 1.08–5.65], p = 0.033), after adjustment for confounders. For men, infrequent cooking was not related to increased risk for the outcomes investigated. Conclusions. In patients newly diagnosed with T2DM and with a regular intake of warm main meals, infrequent <span class="hlt">involvement</span> in cooking was associated with an increased risk of diabetes-related death and stroke for women, but not for men. General practitioners should pay special attention to managing diabetes treatment in female patients newly diagnosed with T2DM who report infrequent <span class="hlt">involvement</span> in cooking. PMID:25592166</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2012JSV...331.5292O','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2012JSV...331.5292O"><span id="translatedtitle">On the sensitivity analysis of <span class="hlt">porous</span> material models</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Ouisse, Morvan; Ichchou, Mohamed; Chedly, Slaheddine; Collet, Manuel</p> <p>2012-11-01</p> <p><span class="hlt">Porous</span> materials are used in many vibroacoustic applications. Different available models describe their behaviors according to materials' intrinsic characteristics. For instance, in the case of <span class="hlt">porous</span> material with rigid frame, and according to the Champoux-Allard model, five parameters are employed. In this paper, an investigation about this model sensitivity to parameters according to frequency is conducted. Sobol and FAST algorithms are used for sensitivity analysis. A strong parametric frequency dependent hierarchy is shown. Sensitivity investigations confirm that resistivity is the most influent parameter when acoustic absorption and surface impedance of <span class="hlt">porous</span> materials with rigid frame are considered. The analysis is first performed on a wide category of <span class="hlt">porous</span> materials, and then restricted to a polyurethane foam analysis in order to illustrate the <span class="hlt">impact</span> of the reduction of the design space. In a second part, a sensitivity analysis is performed using the Biot-Allard model with nine parameters including mechanical effects of the frame and conclusions are drawn through numerical simulations.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/874843','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/874843"><span id="translatedtitle"><span class="hlt">Porous</span> polymer media</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Shepodd, Timothy J.</p> <p>2002-01-01</p> <p>Highly crosslinked monolithic <span class="hlt">porous</span> polymer materials for chromatographic applications. By using solvent compositions that provide not only for polymerization of acrylate monomers in such a fashion that a <span class="hlt">porous</span> polymer network is formed prior to phase separation but also for exchanging the polymerization solvent for a running buffer using electroosmotic flow, the need for high pressure purging is eliminated. The polymer materials have been shown to be an effective capillary electrochromatographic separations medium at lower field strengths than conventional polymer media. Further, because of their highly crosslinked nature these polymer materials are structurally stable in a wide range of organic and aqueous solvents and over a pH range of 2-12.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/7008502','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/biblio/7008502"><span id="translatedtitle"><span class="hlt">Porous</span> electrode preparation method</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Arons, R.M.; Dusek, J.T.</p> <p>1983-10-18</p> <p>A <span class="hlt">porous</span> sintered plaque is provided with a bimodal porosity that is especially well suited for use as an electrode within a molten carbonate fuel cell. The coarse porosity is sufficient for admitting gases into contact with the reaction surfaces while the fine porosity is wetted with and retains molten electrolyte on the reaction sites. The electrode structure is prepared by providing a very fine powder of such as nickel oxide and blending the powder with a suitable decomposable binder to form a solid mass. The mass is comminuted into agglomerate size particles substantially larger than the fine oxide particles and formed into a cohesive compact for subsequent sintering. Sintering is carried out at sufficient conditions to bind the agglomerates together into a <span class="hlt">porous</span> structure having both coarse and fine porosity. Where lithiated nickel oxide cathodes are prepared, the sintering conditions can be moderate enough to retain substantial quantities of lithium within the electrode for adequate conductivity. 2 figs.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/864745','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/864745"><span id="translatedtitle"><span class="hlt">Porous</span> electrode preparation method</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Arons, Richard M.; Dusek, Joseph T.</p> <p>1983-01-01</p> <p>A <span class="hlt">porous</span> sintered plaque is provided with a bimodal porosity that is especially well suited for use as an electrode within a molten carbonate fuel cell. The coarse porosity is sufficient for admitting gases into contact with the reaction surfaces while the fine porosity is wetted with and retains molten electrolyte on the reaction sites. The electrode structure is prepared by providing a very fine powder of such as nickel oxide and blending the powder with a suitable decomposable binder to form a solid mass. The mass is comminuted into agglomerate size particles substantially larger than the fine oxide particles and formed into a cohesive compact for subsequent sintering. Sintering is carried out at sufficient conditions to bind the agglomerates together into a <span class="hlt">porous</span> structure having both coarse and fine porosity. Where lithiated nickel oxide cathodes are prepared, the sintering conditions can be moderate enough to retain substantial quantities of lithium within the electrode for adequate conductivity.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/20100011118','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/20100011118"><span id="translatedtitle">Strong, Lightweight, <span class="hlt">Porous</span> Materials</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Leventis, Nicholas; Meador, Mary Ann B.; Johnston, James C.; Fabrizio, Eve F.; Ilhan, Ulvi</p> <p>2007-01-01</p> <p>A new class of strong, lightweight, <span class="hlt">porous</span> materials has been invented as an outgrowth of an effort to develop reinforced silica aerogels. The new material, called X-Aerogel is less hygroscopic, but no less <span class="hlt">porous</span> and of similar density to the corresponding unmodified aerogels. However, the property that sets X-Aerogels apart is their mechanical strength, which can be as much as two and a half orders of magnitude stronger that the unmodified aerogels. X-Aerogels are envisioned to be useful for making extremely lightweight, thermally insulating, structural components, but they may also have applications as electrical insulators, components of laminates, catalyst supports, templates for electrode materials, fuel-cell components, and filter membranes.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/377002','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/377002"><span id="translatedtitle">Determination of the heat transfer coefficients in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Kim, L.V.</p> <p>1994-06-01</p> <p>The process of transpiration cooling is considered. Methods are suggested for estimating the volumetric coefficient of heat transfer with the use of a two-temperature model and the surface heat transfer coefficient at entry into a <span class="hlt">porous</span> wall. The development of new technology under conditions of increasing heat loads puts the search for effective methods of heat transfer enhancement in the forefront of theoretical investigations. One of the promising trends in the solution of this problem is the use of <span class="hlt">porous</span> materials (PM) in the elements of power units. For thermal protection against convective or radiative heat fluxes, the method of transpiration cooling is successfully used. The mechanism operative in the thermal protection <span class="hlt">involves</span> the injection of a coolant through a <span class="hlt">porous</span> medium to produce a screen over the contour of a body in a flow for removing heat energy from the skeleton of the <span class="hlt">porous</span> material.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/18614698','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/18614698"><span id="translatedtitle">Posttraumatic stress disorder and social support in female victims of sexual assault: the <span class="hlt">impact</span> of spousal <span class="hlt">involvement</span> on the efficacy of cognitive-behavioral therapy.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Billette, Valérie; Guay, Stéphane; Marchand, André</p> <p>2008-11-01</p> <p>The goal of this study is to enhance the efficacy of CBT with victims of sexual assault suffering from PTSD by getting the spouse <span class="hlt">involved</span>. Thus, in addition to attempting to reduce PTSD symptoms, the therapy focuses on improving the support offered by the spouse and favors management of the <span class="hlt">impact</span> of the traumatic event within the couple. A single-case, multiple-baseline across-subjects design is used. Three victims of sexual assault with a diagnosis of PTSD participated in the study. Results at posttreatment and at 3-month follow-up are promising. None of the participants presents a diagnosis of PTSD, and all report a significant improvement in their satisfaction with the support received from their spouses. PMID:18614698</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_8");'>8</a></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li class="active"><span>10</span></li> <li><a href="#" onclick='return showDiv("page_11");'>11</a></li> <li><a href="#" onclick='return showDiv("page_12");'>12</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_10 --> <div id="page_11" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li><a href="#" onclick='return showDiv("page_10");'>10</a></li> <li class="active"><span>11</span></li> <li><a href="#" onclick='return showDiv("page_12");'>12</a></li> <li><a href="#" onclick='return showDiv("page_13");'>13</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="201"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015APS..DFD.H1001M','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015APS..DFD.H1001M"><span id="translatedtitle">Uniaxial deformation of a soft <span class="hlt">porous</span> material</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>MacMinn, Chris; Dufresne, Eric; Wettlaufer, John</p> <p>2015-11-01</p> <p>Compressing a <span class="hlt">porous</span> material will decrease the volume of pore space, driving fluid out. Similarly, injecting fluid into a <span class="hlt">porous</span> material will drive mechanical deformation, distorting the solid skeleton. This poromechanical coupling has applications ranging from cell and tissue mechanics to geomechanics and hydrogeology. The classical theory of linear poroelasticity captures this coupling by combining Darcy's law with linear elasticity and then further linearizing in the strain. This is a good model for very small deformations, but it becomes increasingly inappropriate as deformations grow larger, and moderate to large deformations are common in the context of phenomena such as swelling, damage, and extreme softness. Here, we compare the predictions of linear poroelasticity with those of a rigorous large-deformation framework in the context of two uniaxial model problems. We explore the error associated with the linear model in both steady and dynamic situations, as well as the <span class="hlt">impact</span> of allowing the permeability to vary with the deformation.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3600995','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3600995"><span id="translatedtitle"><span class="hlt">Porous</span> microsphere and its applications</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Cai, Yunpeng; Chen, Yinghui; Hong, Xiaoyun; Liu, Zhenguo; Yuan, Weien</p> <p>2013-01-01</p> <p><span class="hlt">Porous</span> microspheres have drawn great attention in the last two decades for their potential applications in many fields, such as carriers for drugs, absorption and desorption of substances, pulmonary drug delivery, and tissue regeneration. The application of <span class="hlt">porous</span> microspheres has become a feasible way to address existing problems. In this essay, we give a brief introduction of the <span class="hlt">porous</span> microsphere, its characteristics, preparation methods, applications, and a brief summary of existing problems and research tendencies. PMID:23515359</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/6730037','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/6730037"><span id="translatedtitle">Natural convection in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Prasad, V.; Hussain, N.A.</p> <p>1986-01-01</p> <p>This book presents the papers given at a conference on free convection in <span class="hlt">porous</span> materials. Topics considered at the conference included heat transfer, nonlinear temperature profiles and magnetic fields, boundary conditions, concentrated heat sources in stratified <span class="hlt">porous</span> media, free convective flow in a cavity, heat flux, laminar mixed convection flow, and the onset of convection in a <span class="hlt">porous</span> medium with internal heat generation and downward flow.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/19960009264','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/19960009264"><span id="translatedtitle">Selective formation of <span class="hlt">porous</span> silicon</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Fathauer, Robert W. (Inventor); Jones, Eric W. (Inventor)</p> <p>1993-01-01</p> <p>A pattern of <span class="hlt">porous</span> silicon is produced in the surface of a silicon substrate by forming a pattern of crystal defects in said surface, preferably by applying an ion milling beam through openings in a photoresist layer to the surface, and then exposing said surface to a stain etchant, such as HF:HNO3:H2O. The defected crystal will preferentially etch to form a pattern of <span class="hlt">porous</span> silicon. When the amorphous content of the <span class="hlt">porous</span> silicon exceeds 70 percent, the <span class="hlt">porous</span> silicon pattern emits visible light at room temperature.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/19940011487','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/19940011487"><span id="translatedtitle">Selective formation of <span class="hlt">porous</span> silicon</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Fathauer, Jones (Inventor)</p> <p>1993-01-01</p> <p>A pattern of <span class="hlt">porous</span> silicon is produced in the surface of a silicon substrate by forming a pattern of crystal defects in said surface, preferably by applying an ion milling beam through openings in a photoresist layer to the surface, and then exposing said surface to a stain etchant, such as HF:HNO3:H20. The defected crystal will preferentially etch to form a pattern of <span class="hlt">porous</span> silicon. When the amorphous content of the <span class="hlt">porous</span> silicon exceeds 70 percent, the <span class="hlt">porous</span> silicon pattern emits visible light at room temperature.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/22287819','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/22287819"><span id="translatedtitle">Analysis of the <span class="hlt">impact</span> of professional <span class="hlt">involvement</span> in evidence generation for the HTA Process, subproject "cochlear implants": methodology, results and recommendations.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Berrettini, S; Arslan, E; Baggiani, A; Burdo, S; Cassandro, E; Cuda, D; Filipo, R; Rossi, P Giorgi; Mancini, P; Martini, A; Quaranta, A; Quaranta, N; Turchetti, G; Forli, F</p> <p>2011-10-01</p> <p>The aim of Health Technology Assessment (HTA) is to provide decision-makers, distributors and recipients with information on the effectiveness, cost and <span class="hlt">impact</span> of health technologies. The present study constitutes a subproject within the wider project "Analysis of the <span class="hlt">impact</span> of professional <span class="hlt">involvement</span> in evidence generation for the HTA process", which is part of the strategic programme "Transfer of the results of the research in clinical practice and organisation of healthcare services", coordinated by Laziosanità - Agency of Public Healthcare of the Lazio Region and AgeNaS (National Agency for Regional Healthcare Services). The objectives of the present subproject (cochlear implants) are as follows: a) to produce a report regarding the health <span class="hlt">impact</span> of cochlear implants (CI) on their recipients, through a systematic review of literature and extensive selection of relative studies, combining the outcomes with metanalytical techniques. Output: report on the indications of usage in the groups of population for which benefits are controversial; b) to create a registry of patients using cochlear implants. The registry should contain a selection of anagraphic and clinical information relative to patient follow-up in order to assess factors associated with safety and <span class="hlt">impact</span> on cochlear implant users. This source of information is essential for future observational studies. This was divided into 4 phases: 1(st) phase: definition of key participants in the assessment process; 2(nd) phase: definition of methods and timing of "Aims" (definition of the objective); 3(rd) phase: definition of the methods and times of the "assessment process", 4(th) phase: production of the final report. From the analysis of systematic reviews and italian and international guidelines, the Working Group members approved recommendations on the following topics: results after CI in children in relation to age at implantation, bilateral CI in children, CI in deaf children with associated</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/22122787','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/22122787"><span id="translatedtitle">Amorphization and reduction of thermal conductivity in <span class="hlt">porous</span> silicon by irradiation with swift heavy ions</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Newby, Pascal J.; Canut, Bruno; Bluet, Jean-Marie; Lysenko, Vladimir; Gomes, Severine; Isaiev, Mykola; Burbelo, Roman; Chantrenne, Patrice; Frechette, Luc G.</p> <p>2013-07-07</p> <p>In this article, we demonstrate that the thermal conductivity of nanostructured <span class="hlt">porous</span> silicon is reduced by amorphization and also that this amorphous phase in <span class="hlt">porous</span> silicon can be created by swift (high-energy) heavy ion irradiation. <span class="hlt">Porous</span> silicon samples with 41%-75% porosity are irradiated with 110 MeV uranium ions at six different fluences. Structural characterisation by micro-Raman spectroscopy and SEM imaging show that swift heavy ion irradiation causes the creation of an amorphous phase in <span class="hlt">porous</span> Si but without suppressing its <span class="hlt">porous</span> structure. We demonstrate that the amorphization of <span class="hlt">porous</span> silicon is caused by electronic-regime interactions, which is the first time such an effect is obtained in crystalline silicon with single-ion species. Furthermore, the <span class="hlt">impact</span> on the thermal conductivity of <span class="hlt">porous</span> silicon is studied by micro-Raman spectroscopy and scanning thermal microscopy. The creation of an amorphous phase in <span class="hlt">porous</span> silicon leads to a reduction of its thermal conductivity, up to a factor of 3 compared to the non-irradiated sample. Therefore, this technique could be used to enhance the thermal insulation properties of <span class="hlt">porous</span> Si. Finally, we show that this treatment can be combined with pre-oxidation at 300 Degree-Sign C, which is known to lower the thermal conductivity of <span class="hlt">porous</span> Si, in order to obtain an even greater reduction.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/15348161','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/15348161"><span id="translatedtitle">Characterization of <span class="hlt">porous</span> hydroxyapatite.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Hing, K A; Best, S M; Bonfield, W</p> <p>1999-03-01</p> <p>Hydroxyapatite has been considered for use in the repair of osseous defects for the last 20 years. Recent developments have led to interest in the potential of <span class="hlt">porous</span> hydroxyapatite as a synthetic bone graft. However, despite considerable activity in this field, regarding assessment of the biological response to such materials, the basic materials characterization is often inadequate. This paper documents the characterization of the chemical composition, mechanical integrity, macro- and microstructure of a <span class="hlt">porous</span> hydroxyapatite, Endobon (E. Merck GmbH), intended for the bone-graft market. Specimens possesed a range of apparent densities from 0.35 to 1.44 g cm(-3). Chemical analysis demonstrated that the natural apatite precursor of Endobon was not converted to pure hydroxyapatite, but retained many of the ionic substituents found in bone mineral, notably carbonate, sodium and magnesium ions. Investigation of the microstructure illustrated that the struts of the material were not fully dense, but had retained some traces of the network of osteocyte lacunae. Macrostructural analysis demonstrated the complex inter-relationship between the structural features of an open pore structure. Both pore size and connectivity were found to be inversely dependent on apparent density. Furthermore, measurement of pore aspect ratio and orientation demonstrated a relationship between apparent density and the degree of macrostructural anisotropy within the specimens, while, it was also noted that pore connectivity was sensitive to anisotropy. Compression testing demonstrated the effect of apparent density and macrostructural anisotropy on the mechanical properties. An increase in apparent density from 0.38 to 1.25 g cm(-3) resulted in increases in ultimate compressive stress and compressive modulus of 1 to 11 MPa and 0.2 to 3.1 GPa, respectively. Furthermore, anisotropic high density (> 0.9 g cm(-3)) specimens were found to possess lower compressive moduli than isotropic specimens</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/20080006880','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/20080006880"><span id="translatedtitle">Small, <span class="hlt">porous</span> polyacrylate beads</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Rembaum, Alan (Inventor); Yen, Shiao-Ping Siao (Inventor); Dreyer, William J. (Inventor)</p> <p>1976-01-01</p> <p>Uniformly-shaped, <span class="hlt">porous</span>, round beads are prepared by the co-polymerization of an acrylic monomer and a cross-linking agent in the presence of 0.05 to 5% by weight of an aqueous soluble polymer such as polyethylene oxide. Cross-linking proceeds at high temperature above about 50.degree.C or at a lower temperature with irradiation. Beads of even shape and even size distribution of less than 2 micron diameter are formed. The beads will find use as adsorbents in chromatography and as markers for studies of cell surface receptors.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/20080006886','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/20080006886"><span id="translatedtitle">Crosslinked, <span class="hlt">porous</span>, polyacrylate beads</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Rembaum, Alan (Inventor); Yen, Shiao-Ping Siao (Inventor); Dreyer, William J. (Inventor)</p> <p>1976-01-01</p> <p>Uniformly-shaped, <span class="hlt">porous</span>, round beads are prepared by the co-polymerization of an acrylic monomer and a cross-linking agent in the presence of 0.05 to 5% by weight of an aqueous soluble polymer such as polyethylene oxide. Cross-linking proceeds at high temperature above about 50.degree.C or at a lower temperature with irradiation. Beads of even shape and even size distribution of less than 2 micron diameter are formed. The beads will find use as adsorbents in chromatography and as markers for studies of cell surface receptors.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/20080012236','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/20080012236"><span id="translatedtitle">Crosslinked, <span class="hlt">porous</span>, polyacrylate beads</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Rembaum, Alan (Inventor); Yen, Shiao-Ping S. (Inventor); Dreyer, William J. (Inventor)</p> <p>1977-01-01</p> <p>Uniformly-shaped, <span class="hlt">porous</span>, round beads are prepared by the co-polymerization of an acrylic monomer and a cross-linking agent in the presence of 0.05 to 5% by weight of an aqueous soluble polymer such as polyethylene oxide. Cross-linking proceeds at high temperature above about 50.degree. C or at a lower temperature with irradiation. Beads of even shape and even size distribution of less than 2 micron diameter are formed. The beads will find use as adsorbents in chromatography and as markers for studies of cell surface receptors.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/10384839','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/10384839"><span id="translatedtitle">Disintegration of <span class="hlt">porous</span> polyethylene prostheses.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Kerr, A G; Riley, D N</p> <p>1999-06-01</p> <p>A Plastipore (<span class="hlt">porous</span> polyethylene) Total Ossicular Replacement Prosthesis gave an excellent initial hearing result which was maintained for 14 years. Hearing then began to deteriorate and revision surgery showed disintegration of the prosthesis and a defect in the stapes footplate. Histological examination confirmed previous findings in <span class="hlt">porous</span> polyethylene with multinucleated foreign body giant cells and breakdown of the material. PMID:10384839</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2013EGUGA..15.2483W','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2013EGUGA..15.2483W"><span id="translatedtitle">The in-situ formation of methyl-nitrate during NOx re-cycling <span class="hlt">involving</span> CH3O2: global <span class="hlt">impacts</span> and implications in the troposphere</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Williams, Jason; Le Bras, Georges; Kukui, Alexandre</p> <p>2013-04-01</p> <p>Organic nitrates are formed via chain termination steps <span class="hlt">involving</span> peroxy-radicals and NO thus <span class="hlt">impacting</span> the efficiency of ozone production and global oxidative capacity, especially in low NOx environments (Browne and Cohen, 2012). Recently the direct formation of methyl nitrate (CH3ONO2) has been observed during the re-cycling of NOx by CH3O2 (Butkovskaya et al., 2012) with a branching ratio of 1.0(+/-)0.7% for tropospheric conditions. Considering that the CH3O2 route acts as the second most important radical mechanism of NOx re-cycling at global scale implies that this sequestration of reactive nitrogen into a more long lived reservoir could potentially decrease the efficiency of tropospheric ozone production, especially in the tropical regions where the highest mixing ratios of CH3O2 exist as a result of methane oxidation. Past measurements of alkyl-nitrates have shown that although resident mixing ratios of organic nitrates are high under urban conditions, they are also present in the more pristine regions of the tropical Pacific (e.g. Blake et al, 2003) and above Antarctica (i.e. in low NOx environments). Using the global 3D TM5 model we investigate the <span class="hlt">impact</span> that the direct in-situ formation of CH3ONO2 has on global tropospheric composition. By comparing against measurements we also show that such a process could go part way towards explaining the distribution of CH3ONO2 in the tropical troposphere, where direct emissions from the ocean have previously been used to explain observations (Neu et al, 2008). Browne and Cohen, Atms. Chem. Phys., 12, 11917-11932, 2012. Butkovskaya et al., J. Phys. Chem. A., 116(24), 5972-5980, 2012. Blake et al., J. Geophys. Res., 108(D2), 8242, 2003. Neu et al., Geophys. Res. Letts., 35, L13814, 2008.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/865714','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/865714"><span id="translatedtitle"><span class="hlt">Porous</span> metallic bodies</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Landingham, Richard L.</p> <p>1985-01-01</p> <p><span class="hlt">Porous</span> metallic bodies having a substantially uniform pore size of less than about 200 microns and a density of less than about 25 percent theoretical, as well as the method for making them, are disclosed. Group IIA, IIIB, IVB, VB, and rare earth metal hydrides are heated in a confining container at a controlled rate to a temperature of about greater than the temperature at which the hydride decomposes. Hydrogen is removed from the container and the remaining metal is heated during a second stage to a temperature greater than the temperature at which it was previously heated but not greater than the temperature of 1/2 to 2/3 the temperature at which the metal melts at a controlled rate. The resulting <span class="hlt">porous</span> metallic body produced has a density less than about 25 percent theoretical and a pore size of less than about 200 microns. The metallic particles of the present invention have high inner surface area and possess minimum resistance to gas flow.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/19780019129','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/19780019129"><span id="translatedtitle">Application of <span class="hlt">porous</span> materials for laminar flow control</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Pearce, W. E.</p> <p>1978-01-01</p> <p>Fairly smooth <span class="hlt">porous</span> materials were elected for study Doweave; Fibermetal; Dynapore; and perforated titanium sheet. Factors examined include: surface smoothness; suction characteristics; porosity; surface <span class="hlt">impact</span> resistance; and strain compatibility. A laminar flow control suction glove arrangement was identified with material combinations compatible with thermal expansion and structural strain.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/1981JEP....40..175L','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/1981JEP....40..175L"><span id="translatedtitle">Mathematical description of the structure of a capillary-<span class="hlt">porous</span> body</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Lyashkevich, I. M.; Volchenok, V. F.; Raptunovich, G. S.</p> <p>1981-02-01</p> <p>The properties of a capillary-<span class="hlt">porous</span> disperse body are described and a mathematical model of its structure is constructed. As the model body, gypsum stone, which hardens under conditions of oriented mass transfer <span class="hlt">involving</span> the liquid phase, is selected.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/765956','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/765956"><span id="translatedtitle">Combustion in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Dillon, J.</p> <p>1999-09-01</p> <p>A 2.8-liter tube-shaped combustion vessel was constructed to study flame propagation and quenching in <span class="hlt">porous</span> media. For this experiment, hydrogen-air flames propagating horizontally into abed of 6 mm diameter glass beads were studied. Measurements of pressure and temperature along the length of the tube were used to observe flame propagation of quenching. The critical hydrogen concentration for Hz-air mixtures was found to be 11.5%, corresponding to a critical Peclet number of Pe* = 37. This value is substantially less than the value of Pe* = 65 quoted in the literature, for example Babkin et al. (1991). It is hypothesized that buoyancy and a dependence of Pe on the Lewis number account for the discrepancy between these two results.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2014AGUFM.B41L..04H','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2014AGUFM.B41L..04H"><span id="translatedtitle">Biogenic Cracks in <span class="hlt">Porous</span> Rock</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Hemmerle, A.; Hartung, J.; Hallatschek, O.; Goehring, L.; Herminghaus, S.</p> <p>2014-12-01</p> <p>Microorganisms growing on and inside <span class="hlt">porous</span> rock may fracture it by various processes. Some of the mechanisms of biofouling and bioweathering are today identified and partially understood but most emphasis is on chemical weathering, while mechanical contributions have been neglected. However, as demonstrated by the perseverance of a seed germinating and cracking up a concrete block, the turgor pressure of living organisms can be very significant. Here, we present results of a systematic study of the effects of the mechanical forces of growing microbial populations on the weathering of <span class="hlt">porous</span> media. We designed a model <span class="hlt">porous</span> medium made of glass beads held together by polydimethylsiloxane (PDMS), a curable polymer. The rheological properties of the <span class="hlt">porous</span> medium, whose shape and size are tunable, can be controlled by the ratio of crosslinker to base used in the PDMS (see Fig. 1). Glass and PDMS being inert to most chemicals, we are able to focus on the mechanical processes of biodeterioration, excluding any chemical weathering. Inspired by recent measurements of the high pressure (~0.5 Mpa) exerted by a growing population of yeasts trapped in a microfluidic device, we show that yeast cells can be cultured homogeneously within <span class="hlt">porous</span> medium until saturation of the <span class="hlt">porous</span> space. We investigate then the effects of such an inner pressure on the mechanical properties of the sample. Using the same model system, we study also the complex interplay between biofilms and <span class="hlt">porous</span> media. We focus in particular on the effects of pore size on the penetration of the biofilm within the <span class="hlt">porous</span> sample, and on the resulting deformations of the matrix, opening new perspectives into the understanding of life in complex geometry. Figure 1. Left : cell culture growing in a model <span class="hlt">porous</span> medium. The white spheres represent the grains, bonds are displayed in grey, and microbes in green. Right: microscopy picture of glass beads linked by PDMS bridges, scale bar: 100 μm.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/20140001874','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/20140001874"><span id="translatedtitle">Regeneratively Cooled <span class="hlt">Porous</span> Media Jacket</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Mungas, Greg (Inventor); Fisher, David J. (Inventor); London, Adam Pollok (Inventor); Fryer, Jack Merrill (Inventor)</p> <p>2013-01-01</p> <p>The fluid and heat transfer theory for regenerative cooling of a rocket combustion chamber with a <span class="hlt">porous</span> media coolant jacket is presented. This model is used to design a regeneratively cooled rocket or other high temperature engine cooling jacket. Cooling jackets comprising impermeable inner and outer walls, and <span class="hlt">porous</span> media channels are disclosed. Also disclosed are <span class="hlt">porous</span> media coolant jackets with additional structures designed to transfer heat directly from the inner wall to the outer wall, and structures designed to direct movement of the coolant fluid from the inner wall to the outer wall. Methods of making such jackets are also disclosed.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/1998PhDT.......108P','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/1998PhDT.......108P"><span id="translatedtitle">Light emission from <span class="hlt">porous</span> silicon</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Penczek, John</p> <p></p> <p>The continuous evolution of silicon microelectronics has produced significant gains in electronic information processing. However, greater improvements in performance are expected by utilizing optoelectronic techniques. But these techniques have been severely limited in silicon- based optoelectronics due to the lack of an efficient silicon light emitter. The recent observation of efficient light emission from <span class="hlt">porous</span> silicon offer a promising opportunity to develop a suitable silicon light source that is compatible with silicon microelectronics. This dissertation examined the <span class="hlt">porous</span> silicon emission mechanism via photoluminescence, and by a novel device structure for <span class="hlt">porous</span> silicon emitters. The investigation first examined the correlation between <span class="hlt">porous</span> silicon formation conditions (and subsequent morphology) with the resulting photoluminescence properties. The quantum confinement theory for <span class="hlt">porous</span> silicon light emission contends that the morphology changes induced by the different formation conditions determine the optical properties of <span class="hlt">porous</span> silicon. The photoluminescence spectral shifts measured in this study, in conjunction with TEM analysis and published morphological data, lend support to this theory. However, the photoluminescence spectral broadening was attributed to electronic wavefunction coupling between adjacent silicon nanocrystals. An novel device structure was also investigated in an effort to improve current injection into the <span class="hlt">porous</span> silicon layer. The selective etching properties of <span class="hlt">porous</span> silicon were used to create a p-i-n structure with crystalline silicon contacts to the <span class="hlt">porous</span> silicon layer. The resulting device was found to have unique characteristics, with a negative differential resistance region and current-induced emission that spanned from 400 nm to 5500 nm. The negative differential resistance was correlated to resistive heating effects in the device. A numerical analysis of thermal emission spectra from silicon films, in addition to</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li><a href="#" onclick='return showDiv("page_10");'>10</a></li> <li class="active"><span>11</span></li> <li><a href="#" onclick='return showDiv("page_12");'>12</a></li> <li><a href="#" onclick='return showDiv("page_13");'>13</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_11 --> <div id="page_12" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li><a href="#" onclick='return showDiv("page_10");'>10</a></li> <li><a href="#" onclick='return showDiv("page_11");'>11</a></li> <li class="active"><span>12</span></li> <li><a href="#" onclick='return showDiv("page_13");'>13</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="221"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2016EML....12...17J&link_type=ABSTRACT','NASAADS'); return false;" href="http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2016EML....12...17J&link_type=ABSTRACT"><span id="translatedtitle">Fabrication and characterization of <span class="hlt">porous</span> silicon nanowires</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Jung, Daeyoon; Cho, Soo Gyeong; Moon, Taeho; Sohn, Honglae</p> <p>2016-01-01</p> <p>We report the synthesis of <span class="hlt">porous</span> silicon nanowires through the metalassisted chemical etching of <span class="hlt">porous</span> silicon in a solution of hydrofluoric acid and hydrogen peroxide. The morphology of <span class="hlt">porous</span> silicon nanowires was characterized by scanning electron microscopy and transmission electron microscopy. The etch rate of the <span class="hlt">porous</span> silicon nanowires was faster than that of silicon nanowires, but slower than that of <span class="hlt">porous</span> silicon. The <span class="hlt">porous</span> silicon nanowires distributed uniformly on the entire <span class="hlt">porous</span> silicon layer and the tips of the <span class="hlt">porous</span> silicon nanowires congregated together. The single crystalline and sponge-like <span class="hlt">porous</span> structure with the pore diameters of less than 5 nm was confirmed for the <span class="hlt">porous</span> silicon nanowires. [Figure not available: see fulltext.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/22475958','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/22475958"><span id="translatedtitle">Efficient visible-light photocatalytic performance of cuprous oxide <span class="hlt">porous</span> nanosheet arrays</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Li, Xianghua; Wang, Jianqiang; Cao, Minhua</p> <p>2015-10-15</p> <p>Graphical Abstract: We demonstrated a facile and efficient process for fabricating Cu{sub 2}O <span class="hlt">porous</span> nanosheet arrays on Cu mesh. Benefiting from the 1D array structure and <span class="hlt">porous</span> structure, the as-prepared Cu{sub 2}O sample exhibited significantly improved photocatalytic activity for methyl orange degradation under visible light irradiation. - Highlights: • Cu{sub 2}O <span class="hlt">porous</span> nanosheet arrays on Cu mesh were synthesized via the facile and efficient process. • The Cu{sub 2}O sample exhibited the 1D array structure and <span class="hlt">porous</span> nanosheet morphology. • The as-prepared Cu{sub 2}O <span class="hlt">porous</span> nanosheet arrays exhibited significantly improved photocatalytic activity. - Abstract: One-dimensional nanostructures are of great interest for a wide range of applications. In this work, we demonstrated the fabrication of visible-light-responsive Cu{sub 2}O <span class="hlt">porous</span> nanosheet arrays. The synthesis <span class="hlt">involved</span> the growth of Cu(OH){sub 2} nanosheet arrays on Cu mesh by solution-based corrosion and thermal transformation of Cu(OH){sub 2} nanosheet to Cu{sub 2}O <span class="hlt">porous</span> nanosheets on Cu mesh. Benefiting from the one dimensional array structure and <span class="hlt">porous</span> structure, the as-prepared Cu{sub 2}O <span class="hlt">porous</span> nanosheet arrays exhibited significantly improved photocatalytic activity for methyl orange degradation under visible light irradiation.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/305763','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/305763"><span id="translatedtitle">Experimental investigation of contaminant transport in <span class="hlt">porous</span> media. Research report</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Wang, J.C.; Booker, J.R.; Carter, J.P.</p> <p>1998-10-01</p> <p>When numerical methods are applied to simulate a real contaminant transport problem, the values of a number of key parameters such as porosity, hydrodynamic dispersion coefficient or dispersivity and Darcy velocity or seepage velocity or seepage velocity are needed. In this paper, two different experimental programs, <span class="hlt">involving</span> two types of column test and a well simulation test, were designed to demonstrate that the theory developed to explain contaminant transport in <span class="hlt">porous</span> media is capable of representing the actual phenomenon of contaminant migration in soil. It is demonstrated that experiments can also be carried out to determine the properties necessary to model a real case of contaminant migration in <span class="hlt">porous</span> media.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26700405','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26700405"><span id="translatedtitle"><span class="hlt">Involvement</span> of NRN1 gene in schizophrenia-spectrum and bipolar disorders and its <span class="hlt">impact</span> on age at onset and cognitive functioning.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Fatjó-Vilas, Mar; Prats, Claudia; Pomarol-Clotet, Edith; Lázaro, Luisa; Moreno, Carmen; González-Ortega, Itxaso; Lera-Miguel, Sara; Miret, Salvador; Muñoz, Ma José; Ibáñez, Ignacio; Campanera, Sílvia; Giralt-López, Maria; Cuesta, Manuel J; Peralta, Victor; Ortet, Generós; Parellada, Mara; González-Pinto, Ana; McKenna, Peter J; Fañanás, Lourdes</p> <p>2016-03-01</p> <p>Objectives Neuritin 1 gene (NRN1) is <span class="hlt">involved</span> in neurodevelopment processes and synaptic plasticity and its expression is regulated by brain-derived neurotrophic factor (BDNF). We aimed to investigate the association of NRN1 with schizophrenia-spectrum disorders (SSD) and bipolar disorders (BPD), to explore its role in age at onset and cognitive functioning, and to test the epistasis between NRN1 and BDNF. Methods The study was developed in a sample of 954 SSD/BPD patients and 668 healthy subjects. Genotyping analyses included 11 SNPs in NRN1 and one functional SNP in BDNF. Results The frequency of the haplotype C-C (rs645649-rs582262) was significantly increased in patients compared to controls (P = 0.0043), while the haplotype T-C-C-T-C-A (rs3763180-rs10484320-rs4960155-rs9379002-rs9405890-rs1475157) was more frequent in controls (P = 3.1 × 10(-5)). The variability at NRN1 was nominally related to changes in age at onset and to differences in intelligence quotient, in SSD patients. Epistasis between NRN1 and BDNF was significantly associated with the risk for SSD/BPD (P = 0.005). Conclusions Results suggest that: (i) NRN1 variability is a shared risk factor for both SSD and BPD, (ii) NRN1 may have a selective <span class="hlt">impact</span> on age at onset and intelligence in SSD, and (iii) the role of NRN1 seems to be not independent of BDNF. PMID:26700405</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/21499737','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/21499737"><span id="translatedtitle"><span class="hlt">Impact</span> of Cranial Irradiation Added to Intrathecal Conditioning in Hematopoietic Cell Transplantation in Adult Acute Myeloid Leukemia With Central Nervous System <span class="hlt">Involvement</span></span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Mayadev, Jyoti S.; Douglas, James G.; Storer, Barry E.; Appelbaum, Frederick R.; Storb, Rainer</p> <p>2011-05-01</p> <p>Purpose: Neither the prognostic importance nor the appropriate management of central nervous system (CNS) <span class="hlt">involvement</span> is known for patients with acute myeloid leukemia (AML) undergoing hematopoietic cell transplantation (HCT). We examined the <span class="hlt">impact</span> of a CNS irradiation boost to standard intrathecal chemotherapy (ITC). Methods and Materials: From 1995 to 2005, a total of 648 adult AML patients received a myeloablative HCT: 577 patients were CNS negative (CNS-), and 71 were CNS positive (CNS+). Of the 71 CNS+ patients, 52 received intrathecal chemotherapy alone (CNS+ITC), and 19 received ITC plus an irradiation boost (CNS+RT). Results: The CNS-, CNS+ITC, and CNS+RT patients had 1- and 5-year relapse-free survivals (RFS) of 43% and 35%, 15% and 6%, and 37% and 32%, respectively. CNS+ITC patients had a statistically significant worse RFS compared with CNS- patients (hazard ratio [HR], 2.65; 95% confidence interval [CI], 2.0-3.6; p < 0.0001). CNS+RT patients had improved relapse free survival over that of CNS+ITC patients (HR, 0.45; 95% CI, 0.2-0.8; p = 0.01). The 1- and 5-year overall survivals (OS) of patients with CNS-, CNS+ITC, and CNS+RT, were 50% and 38%, 21% and 6%, and 53% and 42%, respectively. The survival of CNS+RT were significantly better than CNS+ITC patients (p = 0.004). After adjusting for known risk factors, CNS+RT patients had a trend toward lower relapse rates and reduced nonrelapse mortality. Conclusions: CNS+ AML is associated with a poor prognosis. The role of a cranial irradiation boost to intrathecal chemotherapy appears to mitigate the risk of CNS disease, and needs to be further investigated to define optimal treatment strategies.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2014PhDT.......309S','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2014PhDT.......309S"><span id="translatedtitle">Processing and Modeling of <span class="hlt">Porous</span> Copper Using Sintering Dissolution Process</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Salih, Mustafa Abualgasim Abdalhakam</p> <p></p> <p>The growth of <span class="hlt">porous</span> metal has produced materials with improved properties as compared to non-metals and solid metals. <span class="hlt">Porous</span> metal can be classified as either open cell or closed cell. Open cell allows a fluid media to pass through it. Closed cell is made up of adjacent sealed pores with shared cell walls. Metal foams offer higher strength to weight ratios, increased <span class="hlt">impact</span> energy absorption, and a greater tolerance to high temperatures and adverse environmental conditions when compared to bulk materials. Copper and its alloys are examples of these, well known for high strength and good mechanical, thermal and electrical properties. In the present study, the <span class="hlt">porous</span> Cu was made by a powder metallurgy process, using three different space holders, sodium chloride, sodium carbonate and potassium carbonate. Several different samples have been produced, using different ratios of volume fraction. The densities of the <span class="hlt">porous</span> metals have been measured and compared to the theoretical density calculated using an equation developed for these foams. The <span class="hlt">porous</span> structure was determined with the removal of spacer materials through sintering process. The sintering process of each spacer material depends on the melting point of the spacer material. Processing, characterization, and mechanical properties were completed. These tests include density measurements, compression tests, computed tomography (CT) and scanning electron microscopy (SEM). The captured morphological images are utilized to generate the object-oriented finite element (OOF) analysis for the <span class="hlt">porous</span> copper. <span class="hlt">Porous</span> copper was formed with porosities in the range of 40-66% with density ranges from 3 to 5.2 g/cm3. A study of two different methods to measure porosity was completed. OOF (Object Oriented Finite Elements) is a desktop software application for studying the relationship between the microstructure of a material and its overall mechanical, dielectric, or thermal properties using finite element models based on</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011AGUFM.H53L..08F&link_type=ABSTRACT','NASAADS'); return false;" href="http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011AGUFM.H53L..08F&link_type=ABSTRACT"><span id="translatedtitle">OPM: The Open <span class="hlt">Porous</span> Media Initiative</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Flemisch, B.; Flornes, K. M.; Lie, K.; Rasmussen, A.</p> <p>2011-12-01</p> <p>The principal objective of the Open <span class="hlt">Porous</span> Media (OPM) initiative is to develop a simulation suite that is capable of modeling industrially and scientifically relevant flow and transport processes in <span class="hlt">porous</span> media and bridge the gap between the different application areas of <span class="hlt">porous</span> media modeling, including reservoir mechanics, CO2 sequestration, biological systems, and product development of engineered media. The OPM initiative will provide a long-lasting, efficient, and well-maintained open-source software for flow and transport in <span class="hlt">porous</span> media built on modern software principles. The suite is released under the GNU General Public License (GPL). Our motivation is to provide a means to unite industry and public research on simulation of flow and transport in <span class="hlt">porous</span> media. For academic users, we seek to provide a software infrastructure that facilitates testing of new ideas on models with industry-standard complexity, while at the same time giving the researcher control over discretization and solvers. Similarly, we aim to accelerate the technology transfer from academic institutions to professional companies by making new research results available as free software of professional standard. The OPM initiative is currently supported by six research groups in Norway and Germany and funded by existing grants from public research agencies as well as from Statoil Petroleum and Total E&P Norge. However, a full-scale development of the OPM initiative requires substantially more funding and <span class="hlt">involvement</span> of more research groups and potential end users. In this talk, we will provide an overview of the current activities in the OPM initiative. Special emphasis will be given to the demonstration of the synergies achieved by combining the strengths of individual open-source software components. In particular, a new fully implicit solver developed within the DUNE-based simulator DuMux could be enhanced by the ability to read industry-standard Eclipse input files and to run on</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/1150645','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/1150645"><span id="translatedtitle"><span class="hlt">Porous</span> substrates filled with nanomaterials</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Worsley, Marcus A.; Baumann, Theodore F.; Satcher, Jr., Joe H.; Stadermann, Michael</p> <p>2014-08-19</p> <p>A composition comprising: at least one <span class="hlt">porous</span> carbon monolith, such as a carbon aerogel, comprising internal pores, and at least one nanomaterial, such as carbon nanotubes, disposed uniformly throughout the internal pores. The nanomaterial can be disposed in the middle of the monolith. In addition, a method for making a monolithic solid with both high surface area and good bulk electrical conductivity is provided. A <span class="hlt">porous</span> substrate having a thickness of 100 microns or more and comprising macropores throughout its thickness is prepared. At least one catalyst is deposited inside the <span class="hlt">porous</span> substrate. Subsequently, chemical vapor deposition is used to uniformly deposit a nanomaterial in the macropores throughout the thickness of the <span class="hlt">porous</span> substrate. Applications include electrical energy storage, such as batteries and capacitors, and hydrogen storage.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=Romance&pg=2&id=EJ1039711','ERIC'); return false;" href="http://eric.ed.gov/?q=Romance&pg=2&id=EJ1039711"><span id="translatedtitle">The <span class="hlt">Impact</span> of Direct <span class="hlt">Involvement</span> I and Direct <span class="hlt">Involvement</span> II Experiences on Secondary School Students' Social Capital, as Measured by Co-Cognitive Factors of the Operation Houndstooth Intervention Theory</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Sands, Michelle M.; Heilbronner, Nancy N.</p> <p>2014-01-01</p> <p>A mixed-methods study grounded in Renzulli's Operation Houndstooth Intervention Theory examined the <span class="hlt">impact</span> of different types of volunteer experiences on the six co-cognitive factors (Optimism, Courage, Romance With a Topic/Discipline, Sensitivity to Human Concerns, Physical/Mental Energy, and Vision/Sense of Destiny) associated with the…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2007PhRvE..76b6311C','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2007PhRvE..76b6311C"><span id="translatedtitle">Hydraulic contacts controlling water flow across <span class="hlt">porous</span> grains</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Carminati, A.; Kaestner, A.; Flühler, H.; Lehmann, P.; Or, D.; Lehmann, E.; Stampanoni, M.</p> <p>2007-08-01</p> <p>Water flow between <span class="hlt">porous</span> grains varies widely depending on the water distribution in contacts between grains. The hydraulic behavior of contacts varies from highly conductive when water fills the contacts to a bottleneck to flow as water pressure drops and contact asperities rapidly drain. Such changes greatly <span class="hlt">impact</span> the hydraulic conductivity of <span class="hlt">porous</span> grain packs such as aggregated soil. The dominant driving force of water flow across contacts is capillarity, often quantified relative to gravity and viscous forces using the capillary and Bond numbers. For fast water infiltration, viscous forces dominate. For simplicity we modeled the water distribution between spherical <span class="hlt">porous</span> grains whose surfaces are covered by spherical bumps of much smaller radii. We provide experimental evidence obtained by neutron radiography and synchrotron-based x-ray tomographic microscopy documenting transitions in the flow behavior across contacts.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/1040865','DOE-PATENT-XML'); return false;" href="http://www.osti.gov/scitech/servlets/purl/1040865"><span id="translatedtitle"><span class="hlt">Porous</span> light-emitting compositions</span></a></p> <p><a target="_blank" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p>Burrell, Anthony K.; McCleskey, Thomas Mark; Jia, Quanxi; Bauer, Eve; Mueller, Alexander H.</p> <p>2012-04-17</p> <p>Light-emitting devices are prepared by coating a <span class="hlt">porous</span> substrate using a polymer-assisted deposition process. Solutions of metal precursor and soluble polymers having binding properties for metal precursor were coated onto <span class="hlt">porous</span> substrates. The coated substrates were heated at high temperatures under a suitable atmosphere. The result was a substrate with a conformal coating that did not substantially block the pores of the substrate.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2005PSSCR...2.3424B','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2005PSSCR...2.3424B"><span id="translatedtitle">Gas sensors based on silicon devices with a <span class="hlt">porous</span> layer</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Barillaro, G.; Diligenti, A.; Nannini, A.; Strambini, L. M.</p> <p>2005-06-01</p> <p>In this work two silicon devices, that is a FET and a p crystalline silicon resistor having <span class="hlt">porous</span> silicon as adsorbing layer are presented as gas sensors. Owing to they are easily integrable with silicon electronics, these devices could represent an improvement of the functionality of silicon for sensor applications. Unlike other <span class="hlt">porous</span> silicon-based sensors, in this case the sensing variable is a current flowing in the crystalline silicon, so that the <span class="hlt">porous</span> silicon film has only the function of adsorbing layer and its properties, electrical or optical, are not directly <span class="hlt">involved</span> in the measurement. The fabrication processes and an electrical characterization in presence of isopropanol vapors are presented and discussed for both devices.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/25500631','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/25500631"><span id="translatedtitle">Additively manufactured <span class="hlt">porous</span> tantalum implants.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Wauthle, Ruben; van der Stok, Johan; Amin Yavari, Saber; Van Humbeeck, Jan; Kruth, Jean-Pierre; Zadpoor, Amir Abbas; Weinans, Harrie; Mulier, Michiel; Schrooten, Jan</p> <p>2015-03-01</p> <p>The medical device industry's interest in open <span class="hlt">porous</span>, metallic biomaterials has increased in response to additive manufacturing techniques enabling the production of complex shapes that cannot be produced with conventional techniques. Tantalum is an important metal for medical devices because of its good biocompatibility. In this study selective laser melting technology was used for the first time to manufacture highly <span class="hlt">porous</span> pure tantalum implants with fully interconnected open pores. The architecture of the <span class="hlt">porous</span> structure in combination with the material properties of tantalum result in mechanical properties close to those of human bone and allow for bone ingrowth. The bone regeneration performance of the <span class="hlt">porous</span> tantalum was evaluated in vivo using an orthotopic load-bearing bone defect model in the rat femur. After 12 weeks, substantial bone ingrowth, good quality of the regenerated bone and a strong, functional implant-bone interface connection were observed. Compared to identical <span class="hlt">porous</span> Ti-6Al-4V structures, laser-melted tantalum shows excellent osteoconductive properties, has a higher normalized fatigue strength and allows for more plastic deformation due to its high ductility. It is therefore concluded that this is a first step towards a new generation of open <span class="hlt">porous</span> tantalum implants manufactured using selective laser melting. PMID:25500631</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2041842','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2041842"><span id="translatedtitle">NanoCipro Encapsulation in Monodisperse Large <span class="hlt">Porous</span> PLGA Microparticles</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Arnold, Matthew M.; Gorman, Eric M.; Schieber, Loren J.; Munson, Eric J.; Berland, Cory</p> <p>2007-01-01</p> <p>Pulmonary drug delivery of controlled release formulations may provide an effective adjunct approach to orally delivered antibiotics for clearing persistent lung infections. Dry powder formulations for this indication should possess characteristics including; effective deposition to infected lung compartments, persistence at the infection site, and steady release of antibiotic. Large <span class="hlt">porous</span> particles (∼10-15 μm) have demonstrated effective lung deposition and enhanced lung residence as a result of their large diameter and reduced clearance by macrophages in comparison to small microparticles (∼1-5 μm). In this report, Precision Particle Fabrication technology was used to create monodisperse large <span class="hlt">porous</span> particles of poly(D,L-lactic-co-glycolic acid) (PLGA) utilizing oils as extractable porogens. After extraction, the resulting large <span class="hlt">porous</span> PLGA particles exhibited a low density and a web-like or hollow interior depending on porogen concentration and type, respectively. Ciprofloxacin nanoparticles (nanoCipro) created by homogenization in dichloromethane, possessed a polymorph with a decreased melting temperature. Encapsulating nanoCipro in large <span class="hlt">porous</span> PLGA particles resulted in a steady release of ciprofloxacin that was extended for larger particle diameters and for the solid particle morphology in comparison to large <span class="hlt">porous</span> particles. The encapsulation efficiency of nanoCipro was quite low and factors <span class="hlt">impacting</span> the entrapment of nanoparticles during particle formation were elucidated. A dry powder formulation with the potential to control particle deposition and sustain release to the lung was developed and insight to improve nanoparticle encapsulation is discussed. PMID:17604870</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2014PhDT........96T','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2014PhDT........96T"><span id="translatedtitle">Adhesion of liquids to <span class="hlt">porous</span> materials and fibers</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Trofimov, Artem</p> <p></p> <p>This research is centered on the analysis of adhesion properties of <span class="hlt">porous</span> materials and fibers of elliptical shapes. Composites are a unique class of materials having properties, which could not be achieved by either of the constituent materials alone. Composites with <span class="hlt">porous</span> filler are put into service in buildings, roads, bridges, etc. Fiber-reinforced composites are actively <span class="hlt">involved</span> in flight vehicles, automobiles, boats, and dozens of other products. In the first part of this study we developed a procedure for evaluation of adhesion of liquids to <span class="hlt">porous</span> solids, where water, hexadecane and asphalt binder and different rocks were studied to illustrate the methodology. An experimental protocol to evaluate the work of adhesion, a characteristic thermodynamic parameter of the liquid/<span class="hlt">porous</span> solid pair, was discussed and a mathematical model describing the kinetics of liquid penetration into inhomogeneous <span class="hlt">porous</span> material was developed and used for interpretation of the experiments. The second part is devoted to the analysis of interactions of liquids with circular and elliptical wires. The behavior of menisci embracing the fiber in the capillary rise experiment was investigated. In particular, we study the profiles of the contact line around cylinders, contact angle, and the work of adhesion of a set of different liquids. Compared to the circular wires, elliptical wires produced taller menisci, hence the wetted area increases. It is expected that the kinetics of resin impregnation into a preforms made of elliptical fibers will significantly change.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/biblio/22136546','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/biblio/22136546"><span id="translatedtitle">A <span class="hlt">POROUS</span>, LAYERED HELIOPAUSE</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Swisdak, M.; Drake, J. F.; Opher, M. E-mail: drake@umd.edu</p> <p>2013-09-01</p> <p>The picture of the heliopause (HP)-the boundary between the domains of the Sun and the local interstellar medium (LISM)-as a pristine interface with a large rotation in the magnetic field fails to describe recent Voyager 1 (V1) data. Magnetohydrodynamic (MHD) simulations of the global heliosphere reveal that the rotation angle of the magnetic field across the HP at V1 is small. Particle-in-cell simulations, based on cuts through the MHD model at V1's location, suggest that the sectored region of the heliosheath (HS) produces large-scale magnetic islands that reconnect with the interstellar magnetic field while mixing LISM and HS plasma. Cuts across the simulation reveal multiple, anti-correlated jumps in the number densities of LISM and HS particles, similar to those observed, at the magnetic separatrices. A model is presented, based on both the observations and simulations, of the HP as a <span class="hlt">porous</span>, multi-layered structure threaded by magnetic fields. This model further suggests that contrary to the conclusions of recent papers, V1 has already crossed the HP.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2015P%26SS..107...64F','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2015P%26SS..107...64F"><span id="translatedtitle">Hypervelocity cratering and disruption of <span class="hlt">porous</span> pumice targets: Implications for crater production, catastrophic disruption, and momentum transfer on <span class="hlt">porous</span> asteroids</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Flynn, George J.; Durda, Daniel D.; Patmore, Emma B.; Clayton, Angela N.; Jack, Sarah J.; Lipman, Miriam D.; Strait, Melissa M.</p> <p>2015-03-01</p> <p>Most asteroids for which porosities have been inferred have porosities from 20% to>50%. To investigate the effects of target porosity on cratering, <span class="hlt">impact</span> disruption, and momentum transfer we performed a series of 17 hypervelocity <span class="hlt">impact</span> experiments on high-porosity (60% to 85% <span class="hlt">porous</span>), terrestrial, pumice targets <span class="hlt">impacted</span> at speeds ranging from 3.5 to 5.2 km/s at the NASA Ames Vertical Gun Range. Eleven disruptions demonstrated that pumice targets are significantly stronger, i.e., they require more impactor kinetic energy per unit target mass to produce an equivalent disruption, than non-<span class="hlt">porous</span> targets. The threshold collisional specific energy, <mml:msubsup> Q D * , for this pumice is ~2380 J/kg, more than 60% greater than the value previously determined for ordinary chondrite meteorites having ~10% porosity, and more than three times the literature value for non-<span class="hlt">porous</span> terrestrial basalt. As a result, in the same impactor environment non-<span class="hlt">porous</span> asteroids, with properties similar to terrestrial basalt, and highly <span class="hlt">porous</span> asteroids with the properties of this pumice are equally likely to be disrupted, possibly explaining the survival of asteroids with moderate or high porosity. The six cratering events produced steep-walled, roughly cylindrical craters, with depth/diameter ratios of ~1 to ~2.7, rather than the bowl-shaped craters with depth/diameter ~0.5 produced in non-<span class="hlt">porous</span> targets. Computed microtomography shows little or no damage to the pumice outside the excavated crater volume even for impactor energies of approximately one-half <mml:msubsup> Q D * , an energy shown to produce global damage in non-<span class="hlt">porous</span> targets. Two large, overlapping craters were produced by successive hypervelocity <span class="hlt">impacts</span> into one pumice target, a result consistent with the interpretation of the large, overlapping craters on the asteroid 253 Mathilde being a result of its high (>50%) porosity. We measured the post-<span class="hlt">impact</span> momentum of a pumice target, showing that the recoil from the</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2013PhDT........26D','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2013PhDT........26D"><span id="translatedtitle">Stability of Chromium Carbide/Chromium Oxide Based <span class="hlt">Porous</span> Ceramics in Supercritical Water</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Dong, Ziqiang</p> <p></p> <p>This research was aimed at developing <span class="hlt">porous</span> ceramics as well as ceramic-metal composites that can be potentially used in Gen-IV supercritical water reactors (SCWR). The research mainly includes two parts: 1) fabricating and engineering the <span class="hlt">porous</span> ceramics and <span class="hlt">porous</span> ceramic-metal composite; 2) Evaluating the stability of the <span class="hlt">porous</span> ceramics in SCW environments. Reactive sintering in carbonaceous environments was used to fabricate <span class="hlt">porous</span> Cr3C2/Cr2O3-based ceramic. A new process consisting of freeze casting and reactive sintering has also been successfully developed to fabricate highly <span class="hlt">porous</span> Cr3C 2 ceramics with multiple interconnected pores. Various amounts of cobalt powders were mixed with ceramic oxides in order to modify the <span class="hlt">porous</span> structure and property of the <span class="hlt">porous</span> carbide obtained by reactive sintering. The hardness of the M(Cr,Co)7C3-Co composite has been evaluated and rationalized based on the solid solution of cobalt in the ceramic phase, the composite effect of soft Co metal and the <span class="hlt">porous</span> structure of the ceramic materials. Efforts have also been made in fabricating and evaluating interpenetrating Cr3C2-Cu composites formed by infiltrating liquid copper into <span class="hlt">porous</span> Cr3C2. The corrosion evaluation mainly focused on assessing the stability of <span class="hlt">porous</span> Cr3C2 and Cr2O3 under various SCW conditions. The corrosion tests showed that the <span class="hlt">porous</span> Cr3C 2 is stable in SCW at temperatures below 425°C. However, cracking and disintegrating of the <span class="hlt">porous</span> Cr3C2 occurred when the SCW temperature increased above 425°C. Mechanisms of the corrosion attack were also investigated. The <span class="hlt">porous</span> Cr2O3 obtained by oxidizing the <span class="hlt">porous</span> Cr3C2 was exposed to various SCW environments. It was found that the stability of Cr 2O 3 was dependent on its morphology and the SCW testing conditions. Increasing SCW temperature increased the dissociation rate of the Cr2O 3. Adding proper amount of Y2O3 can increase the stability of the <span class="hlt">porous</span> Cr2O3 in SCW. It was also concluded that decreasing</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2012PhDT........80W','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2012PhDT........80W"><span id="translatedtitle">Multiscale <span class="hlt">porous</span> fuel cell electrodes</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Wen, Hao</p> <p></p> <p><span class="hlt">Porous</span> electrodes are widely used in fuel cells to enhance electrode performance due to their high surface area. Increasingly, such electrodes are designed with both micro-scale and nano-scale features. In the current work, carbon based <span class="hlt">porous</span> materials have been synthesized and utilized as bioelectrode support for biofuel cells, analysis of such <span class="hlt">porous</span> electrodes via rotating disk electrode has been enhanced by a numerical model that considers diffusion and convection within <span class="hlt">porous</span> media. Finally, <span class="hlt">porous</span> perovskite metal oxide cathodes for solid oxide fuel cell have been modeled to simulate impedance response data obtained from symmetric cells. Carbon fiber microelectrodes (CFME) were fabricated to mimic the microenvironment of carbon fiber paper based <span class="hlt">porous</span> electrodes. They were also miniature electrodes for small-scale applications. As observed by scanning electron microscopy (SEM), carbon nanotubes (CNTs) formed a homogeneously intertwined matrix. Biocatalysts can fully infiltrate this matrix to form a composite, with a significantly enhanced glucose oxidation current---that is 6.4 fold higher than the bare carbon fiber electrodes. Based on the CNT based <span class="hlt">porous</span> matrix, polystyrene beads of uniform diameter at 500 nm were used as template to tune the <span class="hlt">porous</span> structure and enhance biomolecule transport. Focused ion beam (FIB) was used to observe the morphology both at the surface and the cross-section. It has been shown that the template macro-pores enhanced the fuel transport and the current density has been doubled due to the improvement. Like commonly used rotating disk electrode, the <span class="hlt">porous</span> rotating disk electrode is a system with analytically solved flow field. Although models were proposed previously with first order kinetics and convection as the only mass transport at high rotations, some recent findings indicated that diffusion could play an important role at all disk rotation rates. In the current proposed model, enzymatic kinetics that follow a Ping</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3952028','PMC'); return false;" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3952028"><span id="translatedtitle">Knowledge and prevention practices before breast cancer diagnosis in a cross-sectional study among survivors: <span class="hlt">impact</span> on patients' <span class="hlt">involvment</span> in the decision making process</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p>Taioli, Emanuela; Joseph, Gail R.; Robertson, Linda; Eckstein, Stacy; Ragin, Camille</p> <p>2013-01-01</p> <p>Disparities exist in breast cancer knowledge and education, which tend to influence symptom interpretation and decision to seek screening/care. The present project describes a cohort of women's experiences, knowledge and health behavior prior to and after a diagnosis of breast cancer. It also studies how knowledge and demographic factors are associated with level of <span class="hlt">involvement</span> participants had in the treatment of their breast cancer. Women > 18 years who have being diagnosed and treated for breast cancer within 10 years were recruited in Pittsburgh, PA, through the Healthy People Cohort Registry, a data base of volunteers from the community, and Brooklyn, NY through the American Cancer Society breast cancer survivor database. Subsequent to institutional ethics approvals, a questionnaire was administered by mail, and through an electronic interactive format. The study included 124 breast cancer survivors, one quarter of whom were of African ancestry. Roughly half of women indicated that their overall knowledge of breast cancer was limited before diagnosis; no significant association between overall knowledge before diagnosis and stage at diagnosis or an active role of the patient in treatment choices was observed. Two-third of women reported using personal research on internet, books and other media to increase knowledge on breast cancer after diagnosis; the improvement of knowledge was associated with an active role in therapy choice. White women's self report of breast cancer knowledge prior to diagnosis was higher than that of women of African origin (p=0.03); the latter experienced more delays in getting results about the diagnosis (p=0.002), in starting treatment (p=0.03), and in having treatment available at local facilities (p=0.007) than White women. White women were more likely to improve their knowledge through their own research (p=0.08) and through the contribution of their physician (p=0.06) than women of African origin. There is still a need for</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li><a href="#" onclick='return showDiv("page_10");'>10</a></li> <li><a href="#" onclick='return showDiv("page_11");'>11</a></li> <li class="active"><span>12</span></li> <li><a href="#" onclick='return showDiv("page_13");'>13</a></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_12 --> <div id="page_13" class="hiddenDiv"> <div class="row"> <div class="col-sm-12"> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li><a href="#" onclick='return showDiv("page_10");'>10</a></li> <li><a href="#" onclick='return showDiv("page_11");'>11</a></li> <li><a href="#" onclick='return showDiv("page_12");'>12</a></li> <li class="active"><span>13</span></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div> </div> <div class="row"> <div class="col-sm-12"> <ol class="result-class" start="241"> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2009PhDT........85K','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2009PhDT........85K"><span id="translatedtitle">In-situ growth of <span class="hlt">porous</span> alumino-silicates and fabrication of nano-<span class="hlt">porous</span> membranes</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Kodumuri, Pradeep</p> <p>2009-12-01</p> <p>Feasibility of depositing continuous films of nano-<span class="hlt">porous</span> alumino-silicates, primarily zeolites and MCM-41, on metallic and non-metallic substrates was examined with an aim to develop membranes for separation of gaseous mixtures and also for application as hydrogen storage material. Mesoporous silica was deposited in-side the pores of these nano-<span class="hlt">porous</span> disks with an aim to develop membranes for selective separations. Our study <span class="hlt">involves</span> supported zeolite film growth on substrates using in-situ hydrothermal synthesis. Faujasite, Silicalite and Mesoporous silica have been grown on various metallic and non-metallic supports. Metallic substrates used for film growth included anodized titanium, sodium hydroxide treated Titanium, Anodized aluminum, and sintered copper. A non-metallic substrate used was nano-<span class="hlt">porous</span> aluminum oxide. Zeolite film growth was characterized using Scanning Electron Microscope (AMRAY 1820) and High Resolution Transmission electron microscope. Silicalite was found to grow uniformly on all the substrates to form a uniform and closely packed film. Faujasite tends to grow in the form of individual particles which do not inter-grow like silicalite to form a continuous film. Mesoporous silica was found to grow uniformly on anodized aluminum compared to growth on sintered copper and anodized titanium. Mesoporous silica growth on AnodiscRTM was found to cover more than half the surface of the substrate. Commercially obtained AnodiscRTM was found to have cylindrical channels of the pore branching into each other and since we needed pore channels of uniform dimension for Mesoporous silica growth, we have fabricated nano-<span class="hlt">porous</span> alumina with uniform pore channels. Nano-<span class="hlt">porous</span> alumina membranes containing uniform distribution of through thickness cylindrical pore channels were fabricated using anodization of aluminum disks. Free-standing nano-<span class="hlt">porous</span> alumina membranes were used as templates for electro-deposition in order to fabricate nickel and palladium nano</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://files.eric.ed.gov/fulltext/ED545474.pdf','ERIC'); return false;" href="http://files.eric.ed.gov/fulltext/ED545474.pdf"><span id="translatedtitle">The <span class="hlt">Impact</span> of Family <span class="hlt">Involvement</span> on the Education of Children Ages 3 to 8: A Focus on Literacy and Math Achievement Outcomes and Social-Emotional Skills</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Van Voorhis, Frances L.; Maier, Michelle F.; Epstein, Joyce L.; Lloyd, Chrishana M.</p> <p>2013-01-01</p> <p>This report summarizes research conducted primarily over the past 10 years on how families' <span class="hlt">involvement</span> in children's learning and development through activities at home and at school affects the literacy, mathematics, and social-emotional skills of children ages 3 to 8. A total of 95 studies of family <span class="hlt">involvement</span> are reviewed. These…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=analysis+AND+service+AND+customer&pg=2&id=ED552368','ERIC'); return false;" href="http://eric.ed.gov/?q=analysis+AND+service+AND+customer&pg=2&id=ED552368"><span id="translatedtitle">Multi-Generational Perspectives: How They Interact and <span class="hlt">Impact</span> Service to Students and Their Families in an Age of Highly-<span class="hlt">Involved</span> Parents</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Wawrzusin, Andrea C.</p> <p>2013-01-01</p> <p>Although there have always been differences in how generations navigate decision-making in higher education, highly <span class="hlt">involved</span> parents have led to conflicting inter-generational educational expectations. This research study investigated the phenomenon of parental <span class="hlt">involvement</span> and how meanings on educational expectations vary depending on generation.…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://files.eric.ed.gov/fulltext/ED414533.pdf','ERIC'); return false;" href="http://files.eric.ed.gov/fulltext/ED414533.pdf"><span id="translatedtitle"><span class="hlt">Impact</span> of School-Related, Community-Based, and Parental-<span class="hlt">Involvement</span> Activities on Achievement of At-Risk Youth in the High School Setting.</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Young, Barbara N.; Helton, Carol; Whitley, Marilyn E.</p> <p></p> <p>If teenagers do not find support at school, home, or in the community, then they will find it with peers, gangs, or other means. Subsequently, the importance of extra-curricular <span class="hlt">involvement</span> for at-risk youth is reported in this paper; to what extent this <span class="hlt">involvement</span> had potential to influence performance in academics is also examined. Involvement…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://eric.ed.gov/?q=sage+AND+journals&pg=4&id=EJ835531','ERIC'); return false;" href="http://eric.ed.gov/?q=sage+AND+journals&pg=4&id=EJ835531"><span id="translatedtitle">Parental <span class="hlt">Involvement</span> in Latina/Latino-<span class="hlt">Impacted</span> Schools in the Midwest: Recognizing the Role and Function of Home-Based Knowledge and Practices</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>Lopez, Gerardo R.; Vazquez, Vanessa A.</p> <p>2006-01-01</p> <p>This qualitative research study aims to provide rich narratives of parental <span class="hlt">involvement</span> in households of newcomer Latino immigrants in the Midwest. A total of 20 families participated in this 4-month research study. Findings suggest that parents do get <span class="hlt">involved</span> in traditional ways but view "consejos" (the giving of sage advice) as a form of…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://files.eric.ed.gov/fulltext/ED221973.pdf','ERIC'); return false;" href="http://files.eric.ed.gov/fulltext/ED221973.pdf"><span id="translatedtitle">Parent <span class="hlt">Involvement</span>.</span></a></p> <p><a target="_blank" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p>LaCrosse, Ed</p> <p></p> <p>The paper discusses the rationale and guidelines for parent <span class="hlt">involvement</span> in HCEEP (Handicapped Children's Early Education Program) projects. Ways of assessing parents' needs are reviewed, as are four types of services to meet the identified needs: parent education, direct participation, parent counseling, and parent provided programs. Materials and…</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.ncbi.nlm.nih.gov/pubmed/26975034','PUBMED'); return false;" href="http://www.ncbi.nlm.nih.gov/pubmed/26975034"><span id="translatedtitle">Absorption of impinging water droplet in <span class="hlt">porous</span> stones.</span></a></p> <p><a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p>Lee, J B; Radu, A I; Vontobel, P; Derome, D; Carmeliet, J</p> <p>2016-06-01</p> <p>This paper presents an experimental investigation and numerical analysis of the absorption of water droplets <span class="hlt">impacting</span> <span class="hlt">porous</span> stones. The absorption process of an impinging droplet is here fully characterized from spreading to evaporation in terms of absorbed mass during droplet depletion and moisture content distribution in a time-resolved manner for three different natural stones. High-speed imaging and neutron radiography are used to quantify moisture absorption in <span class="hlt">porous</span> stones of varying moisture properties from deposition until depletion. During <span class="hlt">impact</span> and spreading, the droplet exhibits a dynamic non-wetting behavior. At maximum spreading, the droplet undergoes pinning, resulting into the contact radius remaining constant until droplet depletion. Absorption undergoes two phases: initially, absorption is hindered due a contact resistance attributed to entrapped air; afterwards, a more perfect capillary contact occurs and absorption goes on until depletion, concurrently with evaporation and further redistribution. A finite-element numerical model for isothermal unsaturated moisture transport in <span class="hlt">porous</span> media captures the phases of mass absorption in good agreement with the experimental data. Droplet spreading and absorption are highly determined by the <span class="hlt">impact</span> velocity of the droplet, while moisture content redistribution after depletion is much less dependent on <span class="hlt">impact</span> conditions. PMID:26975034</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://www.osti.gov/scitech/servlets/purl/5417765','SCIGOV-STC'); return false;" href="http://www.osti.gov/scitech/servlets/purl/5417765"><span id="translatedtitle">Shock compaction of a <span class="hlt">porous</span> pyrotechnic material</span></a></p> <p><a target="_blank" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p>Lee, L. M.; Schwarz, A. C.</p> <p>1980-01-01</p> <p>The results of an experimental program to generate Hugoniot data for an unreacted pyrotechnic material are discussed and the data presented. The program included both sample fabrication and experimental determination of stress-particle velocity Hugoniot data for the pyrotechnic, titanium hydride-potassium perchlorate (TiH/sub 2/-KClO/sub 4/), at two densities. The TiH/sub 2/-KClO/sub 4/, which was supplied as a powder mixture, was pressed to the desired bulk sample density and size using a ram and die technique. Samples were produced with nominal 2.02 or 2.27 g/cm/sup 3/ densities. Hugoniot data were generated on the <span class="hlt">porous</span> pyrotechnic samples using standard flat plate <span class="hlt">impact</span> techniques. The experimental program provided information defining the shock compaction behavior of <span class="hlt">porous</span> TiH/sub 2/-KClO/sub 4/ up to 70 kbar. The Hugoniot data for both sample densities indicated full compaction was achieved in the 15 to 20 kbar stress range.</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://adsabs.harvard.edu/abs/2011PhDT........76M','NASAADS'); return false;" href="http://adsabs.harvard.edu/abs/2011PhDT........76M"><span id="translatedtitle">Modeling isothermal and non-isothermal flows in <span class="hlt">porous</span> media</span></a></p> <p><a target="_blank" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p>Mohseni Languri, Ehsan</p> <p>2011-12-01</p> <p>A complete understanding of the physics of flow and heat transfer phenomena in <span class="hlt">porous</span> media is vital for accurate simulation of flow processes in industrial applications. In one such application pertaining to liquid composite molding (LCM) for manufacturing polymer composites, the fiber preforms used in LCM as reinforcements are limited not only to the single-scale <span class="hlt">porous</span> media in the form of random fiber-mats, but also include dual-scale <span class="hlt">porous</span> media in the form of woven or stitched fiber-mats. The conventional flow physics is not able to model the resin filling process in LCM <span class="hlt">involving</span> the dual-scale <span class="hlt">porous</span> media. In this study, the flow in dual-scale <span class="hlt">porous</span> media is studied in order to predict the permeability of these fiber mats. The effect of aspect ratio of the fiber preform on the accuracy and flow during permeability estimation in single- and dual-scale <span class="hlt">porous</span> media is analyzed experimentally and numerically. Flow of liquid in a free channel bounded on one side by <span class="hlt">porous</span> medium is studied next, and two well-known boundary conditions of stress continuity and stress jump at the interface of the two regions are evaluated numerically. A point-wise solution for Stokes flow through periodic and non periodic <span class="hlt">porous</span> media (made of cylindrical particles) adjacent to the free channel is presented using the Imite element based CFD software COMSOL. The efficacy of the two interfacial conditions is evaluated after volume averaging the point-wise velocity using a long averaging volume, also called the representative elementary volume or REV, and then comparing such a volume-averaged velocity profile with the available analytical solution. The investigation is carried out for five different porosities at three different Reynolds numbers to cover a wide range of applications. The presence of randomly-placed cylinders during the creation of non-periodic <span class="hlt">porous</span> media damps out spatial fluctuations in the averaged velocity observed in periodic <span class="hlt">porous</span> media. The analytical</p> </li> <li> <p><a target="_blank" onclick="trackOutboundLink('http://hdl.handle.net/2060/20110011143','NASA-TRS'); return false;" href="http://hdl.handle.net/2060/20110011143"><span id="translatedtitle">Acoustic Absorption in <span class="hlt">Porous</span> Materials</span></a></p> <p><a target="_blank" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p>Kuczmarski, Maria A.; Johnston, James C.</p> <p>2011-01-01</p> <p>An understanding of both the areas of materials science and acoustics is necessary to successfully develop materials for acoustic absorption applications. This paper presents the basic knowledge and approaches for determining the acoustic performance of <span class="hlt">porous</span> materials in a manner that will help materials researchers new to this area gain the understanding and skills necessary to make meaningful contributions to this field of study. Beginning with the basics and making as few assumptions as possible, this paper reviews relevant topics in the acoustic performance of <span class="hlt">porous</span> materials, which are often used to make acoustic bulk absorbers, moving from the physics of sound wave interactions with <span class="hlt">porous</span> materials to measurement techniques for flow resistivity, characteristic impedance, and wavenumber.</p> </li> </ol> <div class="pull-right"> <ul class="pagination"> <li><a href="#" onclick='return showDiv("page_1");'>«</a></li> <li><a href="#" onclick='return showDiv("page_9");'>9</a></li> <li><a href="#" onclick='return showDiv("page_10");'>10</a></li> <li><a href="#" onclick='return showDiv("page_11");'>11</a></li> <li><a href="#" onclick='return showDiv("page_12");'>12</a></li> <li class="active"><span>13</span></li> <li><a href="#" onclick='return showDiv("page_13");'>»</a></li> </ul> </div> </div><!-- col-sm-12 --> </div><!-- row --> </div><!-- page_13 --> <center> <div class="footer-extlink text-muted"><small>Some links on this page may take you to non-federal websites. 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