WorldWideScience

Sample records for undertaken detailed structural

  1. Detailed nuclear structure studies far from stability

    International Nuclear Information System (INIS)

    Wood, J.L.; Schwarzenberg, J.; Zganjar, E.F.; Rupnik, D.

    1991-01-01

    State-of--the-art spectroscopy of nuclei far from stability has achieved an extraordinary level of sophistication and detail in the last ten years. In principle, if a state can be populated, it can be characterized by its energy, spin, parity, and major decay paths. Sometimes its lifetime can be measured. In practice, one is confronted with enormous complexity. To convert raw spectroscopic data into nuclear structure data involves a complex process of disentangling gamma rays and conversion electrons into decay schemes. Specifically, coincidence techniques, especially coincidence intensities, play a crucial role in this process. Recent examples and methods from work done at UNISOR are presented

  2. Structural concepts and details for seismic design

    Energy Technology Data Exchange (ETDEWEB)

    1991-09-01

    This manual discusses building and building component behavior during earthquakes, and provides suggested details for seismic resistance which have shown by experience to provide adequate performance during earthquakes. Special design and construction practices are also described which, although they might be common in some high-seismic regions, may not be common in low and moderate seismic-hazard regions of the United States. Special attention is given to describing the level of detailing appropriate for each seismic region. The UBC seismic criteria for all seismic zones is carefully examined, and many examples of connection details are given. The general scope of discussion is limited to materials and construction types common to Department of Energy (DOE) sites. Although the manual is primarily written for professional engineers engaged in performing seismic-resistant design for DOE facilities, the first two chapters, plus the introductory sections of succeeding chapters, contain descriptions which are also directed toward project engineers who authorize, review, or supervise the design and construction of DOE facilities. 88 refs., 188 figs.

  3. Structured detailed opto-mechanical tolerance modeling

    Science.gov (United States)

    Swart, P. C.

    2016-02-01

    Opto-mechanical tolerancing is a complex art, which is often reduced to inadequate tabled data of allowable tilts and decentres. During the process the respective roles of optical- and mechanical designers can become entangled and a source of conflict. A framework of principles is introduced to guide the design team through these murky waters. From these principles the development of a catalogue of models, practices and past precedents are proposed. An example is presented to serve as illustration. The final result is a model, of opto-mechanical tolerances, which allows a structured flow of tolerances into optical performance prediction.

  4. Analysis of local influences in structural details of the bridges

    Directory of Open Access Journals (Sweden)

    Adam RUDZIK

    2015-03-01

    Full Text Available The article analyses the problems of local influences in structural details of bridges as the critical locations, whose damages or excessive force may directly affect the safety of users. These analyses are shown on selected examples. Presented is the example of local changes in the forms of proper vibrations in the node of the truss bridge that can be used in expert issues concerning the causes of damages. The second example are the changes in stresses in the stay cable anchorage element including the nonlinear material models. Models of this type can be successfully used by engineers as they allow for analysis of selected structural details without the need for detailed mapping of the entire structure, but only a selected section.

  5. Detailed structure of pipe flow with water hammer oscillations | Kioni ...

    African Journals Online (AJOL)

    Herein, the evolution and detailed structure of velocity and pressure fields of an oscillating axi-symmetric pipe flow arising from a rapid closure of a valve has been determined through the solution, by the Finite Volume technique, of the full Navier Stokes equations. The method correctly predicts the distortion of the pressure ...

  6. Detailed electromagnetic simulation for the structural color of butterfly wings.

    Science.gov (United States)

    Lee, R Todd; Smith, Glenn S

    2009-07-20

    Many species of butterflies exhibit interesting optical phenomena due to structural color. The physical reason for this color is subwavelength features on the surface of a single scale. The exposed surface of a scale is covered with a ridge structure. The fully three-dimensional, periodic, finite-difference time-domain method is used to create a detailed electromagnetic model of a generic ridge. A novel method for presenting the three-dimensional observed color pattern is developed. Using these tools, the change in color that is a result of varying individual features of the scale is explored. Computational models are developed that are similar to three butterflies: Morpho rhetenor, Troides magellanus, and Ancyluris meliboeus.

  7. Detailed measurements of structure functions from nucleons and nuclei

    CERN Multimedia

    2002-01-01

    The experiment will study deep inelastic muon nucleon scattering in a wide range of $Q^{2}$(1-200 (GeV/c)$^{2}$) and $x(0.005-0.75)$. The main aims of the experiment are: \\\\\\\\ a) Detailed measurements of the nuclear dependence of the structure function $F_{2}^{A}$, of $R = \\sigma_/\\sigma_{T}$ and of the cross-section for $J/\\psi$ production. They will provide a basis for the understanding of the EMC effect: the modification of quark and gluon distributions due to the nuclear environment. \\\\b) A simultaneous high luminosity measurement of the structure function $F_{2}$ on hydrogen and deuterium. This will provide substantially improved accuracy in the knowledge of the neutron structure function $F_{2}^{n}$, of $F_{2}^{p}-F_{2}^{n}$ and $F_{2}^{n}/F_{2}^{p}$ and their $Q^{2}$ dependence. Furthermore, the data will allow a determination of the strong coupling constant $\\alpha_{S}(Q^{2})$ with reduced experimental and theoretical uncertainties as well as of the ratio of the down to up quark distributions in the v...

  8. Analysis of Fatigue Crack Growth in Ship Structural Details

    Directory of Open Access Journals (Sweden)

    Leheta Heba W.

    2016-04-01

    Full Text Available Fatigue failure avoidance is a goal that can be achieved only if the fatigue design is an integral part of the original design program. The purpose of fatigue design is to ensure that the structure has adequate fatigue life. Calculated fatigue life can form the basis for meaningful and efficient inspection programs during fabrication and throughout the life of the ship. The main objective of this paper is to develop an add-on program for the analysis of fatigue crack growth in ship structural details. The developed program will be an add-on script in a pre-existing package. A crack propagation in a tanker side connection is analyzed by using the developed program based on linear elastic fracture mechanics (LEFM and finite element method (FEM. The basic idea of the developed application is that a finite element model of this side connection will be first analyzed by using ABAQUS and from the results of this analysis the location of the highest stresses will be revealed. At this location, an initial crack will be introduced to the finite element model and from the results of the new crack model the direction of the crack propagation and the values of the stress intensity factors, will be known. By using the calculated direction of propagation a new segment will be added to the crack and then the model is analyzed again. The last step will be repeated until the calculated stress intensity factors reach the critical value.

  9. Detailed genetic structure of European bitterling populations in Central Europe

    Directory of Open Access Journals (Sweden)

    Veronika Bartáková

    2015-11-01

    Full Text Available The European bitterling (Rhodeus amarus is a small cyprinid fish whose populations declined markedly between 1950 and 1980. However, its range currently expands, partly due to human-assisted introductions. We determined the genetic variability and detailed spatial structure among bitterling populations in Central Europe and tested alternative hypotheses about colonization of this area. Twelve polymorphic microsatellite loci on a large sample of 688 individuals had been used to analyse genetic variability and population structure. Samples originated from 27 localities with emphasis on area of the Czech Republic where three major sea drainages (Black, Baltic, and Northern Sea meet. Highly variable level of intrapopulation genetic variability had generally been detected and a recent decrease in numbers (“bottleneck” had been indicated by genetic data among six populations. High level of interpopulation differentiation was identified even within the basins. There was a significant role of genetic drift and indications of low dispersal ability of R. amarus. Surprisingly, the Odra River was inhabited by two distinct populations without any genetic signatures of a secondary contact. Czech part of the Odra (Baltic basin was colonized from the Danubian refugium (similarly to adjacent Danubian basin rivers including the Morava, while Polish part of the Odra was genetically similar to the populations in the Vistula River (Baltic basin, that has been colonized by a different (Eastern phylogeographic lineage of R. amarus. Most Czech R. amarus populations were colonized from the Danubian refugium, suggesting potential for a human-mediated colonization of the Odra or Elbe Rivers by R. amarus. One Elbe basin population was genetically mixed from the two (Danubian and Eastern phylogeographic lineages. In general the Czech populations of R. amarus were genetically stable except for a single population which has probably been recently introduced. This research

  10. Content, Structure, and Sequence of the Detailing Discipline at Kendall College of Art and Design.

    Science.gov (United States)

    Mulder, Bruce E.

    A study identified the appropriate general content, structure, and sequence for a detailing discipline that promoted student achievement to professional levels. Its focus was the detailing discipline, a sequence of studio courses within the furniture design program at Kendall College of Art and Design, Grand Rapids, Michigan. (Detailing, an…

  11. Detailed requirements for a next generation nuclear data structure.

    Energy Technology Data Exchange (ETDEWEB)

    Brown, D. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2016-07-05

    This document attempts to compile the requirements for the top-levels of a hierarchical arrangement of nuclear data such as found in the ENDF format. This set of requirements will be used to guide the development of a new data structure to replace the legacy ENDF format.

  12. 3. The Detailed Structure of the Sub-debates

    OpenAIRE

    Betz, Gregor; Cacean, Sebastian

    2017-01-01

    3.1. The Central Justification of R&D The central justification of R&D represents a consequentialist argument. R&D into CE technologies is claimed to be a suitable means for reaching the goal that CE methods be ready for deployment in the future. This argument rests essentially on theses T2 – T4. The argument map below shows the dialectical structure of the central justification of R&D. Argument Map B The central argument in favour of R&D into CE technology T justifies thesis T1 by saying th...

  13. Creating Imaginative Worlds: Unique Details and Structure in Norma Fox Mazer's Young Adult Fiction.

    Science.gov (United States)

    Angel, Ann

    2001-01-01

    Discusses how writer Norma Fox Mazer has helped many readers make the leap between reality and imagination simply in the way she handles details in the lives of her characters. Explores the ideas of communicating with detail, experimenting with structure, and playing with time in crucial scenes. (SG)

  14. Total hip replacement for Mseleni Joint Disease undertaken in a ...

    African Journals Online (AJOL)

    Total hip replacement for Mseleni Joint Disease undertaken in a rural hospital: five-year follow-up. Abstract. Objective: The objective of this project was to ascertain whether it is reasonable to perform specialist surgery for Mseleni Joint Disease (MJD) in a rural hospital by assessing the medium- term outcome of surgery for ...

  15. Reduction of occupational exposures in PWR power plants - actions undertaken

    International Nuclear Information System (INIS)

    Jeanson, P.

    1983-01-01

    The reduction of doses to nuclear power plant workers is a permanent aim of Electricite de France. Many actions are undertaken simultaneously some of them jointly with the Commissariat a l'Energie Atomique. The theoretical studies bear mainly on the formation and transfer of corrosion and fission products in the primary circuit of PWRs and on the procedures to lower the deposited activity. The practical studies bear on the design of materials and buildings and the rules of installation as well as on the chemical conditioning of the primary fluid. They also bear on the conditions of maintenance of all the components; for the main ones, special tools are designed. Finally, operating a daily dosimetry makes it possible to know the distribution of collective doses better and therefore to judiciously direct the actions to be undertaken [fr

  16. Light water reactor fuel analysis code FEMAXI-IV(Ver.2). Detailed structure and user's manual

    International Nuclear Information System (INIS)

    Suzuki, Motoe; Saitou, Hiroaki.

    1997-11-01

    A light water reactor fuel behavior analysis code FEMAXI-IV(Ver.2) was developed as an improved version of FEMAXI-IV. Development of FEMAXI-IV has been already finished in 1992, though a detailed structure and input manual of the code have not been open to users yet. Here, the basic theories and structure, the models and numerical solutions applied to FEMAXI-IV(Ver.2), and the material properties adopted in the code are described in detail. In FEMAXI-IV(Ver.2), programming bugs in previous FEMAXI-IV were eliminated, renewal of the pellet thermal conductivity was performed, and a model of thermal-stress restraint on FP gas release was incorporated. For facilitation of effective and wide-ranging application of the code, methods of input/output of the code are also described in detail, and sample output is included. (author)

  17. Online survey of insolvency professionals undertaken for TSO. Final report.

    OpenAIRE

    Tribe, John; Purdy, David

    2014-01-01

    The London Gazette was first published as\\ud The Oxford Gazette in 1665. It is Great Britain’s\\ud oldest continuously-published newspaper and\\ud it has a long history of publishing insolvencyrelated\\ud information.\\ud This survey was commissioned in 2012 by\\ud TSO - publishers of The Gazette series - to\\ud investigate IP use of insolvency information in\\ud their publications.\\ud Our analysis relies heavily upon an online\\ud survey undertaken by Kingston Law School\\ud during February-March 201...

  18. Cyclic Testing for Structural Detail Improvement of CFT Column-Foundation Connections

    Directory of Open Access Journals (Sweden)

    Hee-Ju Kim

    2015-04-01

    Full Text Available In this study, concrete-filled tube (CFT column-to-foundation connections were investigated experimentally to improve the design of their structural details. Initially, five different types of foundation connections, which were classified according to the design parameters incorporating the types of anchor bolts, shear connectors, base members, and reinforced bars used, were fabricated. After conducting structural experiments on these foundation models, the performance and capacity of the individual model cases from the test results were compared with each other. The test results showed that some of the test models designed according to current design guidelines had problems related to the structural details. Therefore, this study proposed an adequate design methodology to improve the performance of foundation components, such as high tension bolt, base frame members, and embedded plate. An analytical investigation of the force-deformation relationship as well as the characteristic strains distributed over the individual foundation components was performed.

  19. Probing the structural details of xylan degradation by real-time NMR spectroscopy

    DEFF Research Database (Denmark)

    Petersen, Bent O.; Lok, Finn; Meier, Sebastian

    2014-01-01

    fraction of cereal cell wall polysaccharides consists of arabinoxylans. Arabinoxylan and its degradation products are therefore present in a variety of agro-industrial residues and products. Here, we undertook to track the structural details of wheat arabinoxylan degradation with high resolution NMR...... spectroscopy. More than 15 carbohydrate residues were distinguished in the substrate and more than 20 residues in partially degraded samples without any sample cleanup. The resolution of a plethora of structural motifs in situ permits the readout of persisting structures in degradation processes...

  20. Formulation of probabilistic models of protein structure in atomic detail using the reference ratio method

    DEFF Research Database (Denmark)

    Valentin, Jan B.; Andreetta, Christian; Boomsma, Wouter

    2014-01-01

    We propose a method to formulate probabilistic models of protein structure in atomic detail, for a given amino acid sequence, based on Bayesian principles, while retaining a close link to physics. We start from two previously developed probabilistic models of protein structure on a local length...... the parameters of the nonlocal model from the native structure without loss of generality. The local and nonlocal models are combined using the reference ratio method, which is a well-justified probabilistic construction. For evaluation, we use the resulting joint models to predict the structure of four proteins....... The results indicate that the proposed method and the probabilistic models show considerable promise for probabilistic protein structure prediction and related applications. © 2013 Wiley Periodicals, Inc....

  1. Protein secondary structure assignment revisited: a detailed analysis of different assignment methods

    Directory of Open Access Journals (Sweden)

    de Brevern Alexandre G

    2005-09-01

    Full Text Available Abstract Background A number of methods are now available to perform automatic assignment of periodic secondary structures from atomic coordinates, based on different characteristics of the secondary structures. In general these methods exhibit a broad consensus as to the location of most helix and strand core segments in protein structures. However the termini of the segments are often ill-defined and it is difficult to decide unambiguously which residues at the edge of the segments have to be included. In addition, there is a "twilight zone" where secondary structure segments depart significantly from the idealized models of Pauling and Corey. For these segments, one has to decide whether the observed structural variations are merely distorsions or whether they constitute a break in the secondary structure. Methods To address these problems, we have developed a method for secondary structure assignment, called KAKSI. Assignments made by KAKSI are compared with assignments given by DSSP, STRIDE, XTLSSTR, PSEA and SECSTR, as well as secondary structures found in PDB files, on 4 datasets (X-ray structures with different resolution range, NMR structures. Results A detailed comparison of KAKSI assignments with those of STRIDE and PSEA reveals that KAKSI assigns slightly longer helices and strands than STRIDE in case of one-to-one correspondence between the segments. However, KAKSI tends also to favor the assignment of several short helices when STRIDE and PSEA assign longer, kinked, helices. Helices assigned by KAKSI have geometrical characteristics close to those described in the PDB. They are more linear than helices assigned by other methods. The same tendency to split long segments is observed for strands, although less systematically. We present a number of cases of secondary structure assignments that illustrate this behavior. Conclusion Our method provides valuable assignments which favor the regularity of secondary structure segments.

  2. Imaging the internal structure of fluid upflow zones with detailed digital Parasound echosounder surveys

    Science.gov (United States)

    Spiess, V.; Zuehlsdorff, L.; von Lom-Keil, H.; Schwenk, T.

    2001-12-01

    Sites of venting fluids both with continuous and episodic supply often reveal complex surface and internal structures, which are difficult to image and cause problems to transfer results from local sampling towards a structural reconstruction and a quantification of (average) flux rates. Detailed acoustic and seismic surveys would be required to retrieve this information, but also an appropriate environment, where fluid migration can be properly imaged from contrasts to unaffected areas. Hemipelagic sediments are most suitable, since typically reflectors are coherent and of low lateral amplitude variation and structures are continuous over distances much longer than the scale of fluid migration features. During RV Meteor Cruise M473 and RV Sonne Cruise SO 149 detailed studies were carried out in the vicinity of potential fluid upflow zones in the Lower Congo Basin at 5oS in 3000 m water depth and at the Northern Cascadia Margin in 1000 m water depth. Unexpected sampling of massive gas hydrates from the sea floor as well as of carbonate concretions, shell fragments and different liveforms indicated active fluid venting in a typically hemipelagic realm. The acoustic signature of such zones includes columnar blanking, pockmark depressions at the sea floor, association with small offset faults (ParaDigMA System for further processing and display, to image the spatial structure of the upflow zones. Due to the high data density amplitudes and other acoustic properties could be investigated in a 3D volume and time slices as well as reflector surfaces were analyzed. Pronounced lateral variations of reflection amplitudes within a complex pattern indicate potential pathways for fluid/gas migration and occurrences of near-surface gas hydrate deposits, which may be used to trace detailed surface evidence from side scan sonar imaging down to depth and support dedicated sampling.

  3. Formulation of probabilistic models of protein structure in atomic detail using the reference ratio method.

    Science.gov (United States)

    Valentin, Jan B; Andreetta, Christian; Boomsma, Wouter; Bottaro, Sandro; Ferkinghoff-Borg, Jesper; Frellsen, Jes; Mardia, Kanti V; Tian, Pengfei; Hamelryck, Thomas

    2014-02-01

    We propose a method to formulate probabilistic models of protein structure in atomic detail, for a given amino acid sequence, based on Bayesian principles, while retaining a close link to physics. We start from two previously developed probabilistic models of protein structure on a local length scale, which concern the dihedral angles in main chain and side chains, respectively. Conceptually, this constitutes a probabilistic and continuous alternative to the use of discrete fragment and rotamer libraries. The local model is combined with a nonlocal model that involves a small number of energy terms according to a physical force field, and some information on the overall secondary structure content. In this initial study we focus on the formulation of the joint model and the evaluation of the use of an energy vector as a descriptor of a protein's nonlocal structure; hence, we derive the parameters of the nonlocal model from the native structure without loss of generality. The local and nonlocal models are combined using the reference ratio method, which is a well-justified probabilistic construction. For evaluation, we use the resulting joint models to predict the structure of four proteins. The results indicate that the proposed method and the probabilistic models show considerable promise for probabilistic protein structure prediction and related applications. Copyright © 2013 Wiley Periodicals, Inc.

  4. A structurally detailed finite element human head model for simulation of transcranial magnetic stimulation.

    Science.gov (United States)

    Chen, Ming; Mogul, David Jeffery

    2009-04-30

    Computational studies of the head utilizing finite element models (FEMs) have been used to investigate a wide variety of brain-electromagnetic (EM) field interaction phenomena including magnetic stimulation of the head using transcranial magnetic stimulation (TMS), direct electric stimulation of the brain for electroconvulsive therapy, and electroencephalography source localization. However, no human head model of sufficient complexity for studying the biophysics under these circumstances has been developed which utilizes structures at both the regional and cellular levels and provides well-defined smooth boundaries between tissues of different conductivities and orientations. The main barrier for building such accurate head models is the complex modeling procedures that include 3D object reconstruction and optimized meshing. In this study, a structurally detailed finite element model of the human head was generated that includes details to the level of cerebral gyri and sulci by combining computed tomography and magnetic resonance images. Furthermore, cortical columns that contain conductive processes of pyramidal neurons traversing the neocortical layers were included in the head model thus providing structure at or near the cellular level. These refinements provide a much more realistic model to investigate the effects of TMS on brain electrophysiology in the neocortex.

  5. Detailed Structural Analyses of KOH Activated Carbon from Waste Coffee Beans

    Science.gov (United States)

    Takahata, Tomokazu; Toda, Ikumi; Ono, Hiroki; Ohshio, Shigeo; Akasaka, Hiroki; Himeno, Syuji; Kokubu, Toshinori; Saitoh, Hidetoshi

    2009-11-01

    The relationship of the detailed structural change of KOH activated carbon and hydrogen storage ability was investigated in activated carbon materials fabricated from waste coffee beans. The specific surface area of porous carbon materials calculated from N2 adsorption isotherms stood at 2070 m2/g when the weight ratio of KOH to carbon materials was 5:1, and pore size was in the range of approximately 0.6 to 1.1 nm as micropores. In the structural analysis, X-ray diffraction analysis and Raman spectroscopy indicated structural change in these carbon materials through KOH activation. The order of the graphite structure changed to a smaller scale with this activation. It is theorized that specific surface area increased using micropores provided by carbon materials developed from the descent of the graphite structure. Hydrogen storage ability improved with these structural changes, and reached 0.6 wt % at 2070 m2/g. These results suggest that hydrogen storage ability is conferred by the chemical effect on graphite of carbon materials.

  6. The E-ELT project: the telescope main structure detailed design study

    Science.gov (United States)

    Marchiori, Gianpietro; Busatta, Andrea; Ghedin, Leonardo; De Lorenzi, Simone

    2012-09-01

    The European Extremely Large Telescope (E-ELT) is the biggest telescope in the world. Within the Detailed Design activities, ESO has awarded EIE GROUP (European Industrial Engineering) a contract for the Design of the Main Structure to the point where the concept of the telescope has been consolidated, from a construction point of view. All the Design activities have been developed in order to create an integrated system in terms of functionality and performance, while the engineering activities have been performed with the aim of obtaining a telescope that can be built, transported, integrated, with a reduced maintainability.

  7. Several qualitative acoustic surveys are undertaken each year in ...

    African Journals Online (AJOL)

    denise

    each year in Namibian waters to assess the biomass of the major pelagic fish ... VARIABLE SPATIAL STRUCTURE OF SCHOOLING PELAGIC FISH OFF. NAMIBIA: IMPLICATIONS ... (77%) and round herring (90%) between surveys, whereas biomass estimates of horse mackerel were relatively similar between surveys.

  8. Several qualitative acoustic surveys are undertaken each year in ...

    African Journals Online (AJOL)

    denise

    The aim of this paper is to quantify, by means of var- iograms, the spatial structure of aggregations of pelagic fish off Namibia, and to investigate their different strategies of space occupation. The influence of high- density areas on overall estimates of abundance and associated variance is also assessed, as is the effect of.

  9. Ultrasound of the knee with emphasis on the detailed anatomy of anterior, medial, and lateral structures.

    Science.gov (United States)

    De Maeseneer, Michel; Marcelis, Stefaan; Boulet, Cedric; Kichouh, Mimoun; Shahabpour, Maryam; de Mey, Johan; Cattrysse, Erik

    2014-08-01

    To describe the detailed ultrasound anatomy of the anterior, medial, and lateral aspects of the knee and present the ultrasound examination technique used. We present ultrasound using images of patients, volunteer subjects, and cadaveric specimens. We correlate ultrasound images with images of anatomical sections and dissections. The distal quadriceps tendon is made up of different laminas that can be seen with ultrasound. One to five laminas may be observed. The medial retinaculum is made up of three anatomical layers: the fascia, an intermediate layer, and the capsular layer. At the level of the medial patellofemoral ligament (MPFL) one to three layers may be observed with ultrasound. The medial supporting structures are made up of the medial collateral ligament and posterior oblique ligament. At the level of the medial collateral ligament (MCL), the superficial band, as well as the deeper meniscofemoral and meniscotibial bands can be discerned with ultrasound. The posterior part, corresponding to the posterior oblique ligament (POL), also can be visualized. Along the posteromedial aspect of the knee the semimembranosus tendon has several insertions including an anterior arm, direct arm, and oblique popliteal arm. These arms can be differentiated with ultrasound. Along the lateral aspect of the knee the iliotibial band and adjacent joint recesses can be assessed. The fibular collateral ligament is encircled by the anterior arms of the distal biceps tendon. Along the posterolateral corner, the fabellofibular, popliteofibular, and arcuate ligaments can be visualized. The anatomy of the anterior, medial, and lateral supporting structures of the knee is more complex than is usually thought. Ultrasound, with its exquisite resolution, allows an accurate assessment of anatomical detail. Knowledge of detailed anatomy and a systematic technique are prerequisites for a successful ultrasound examination of the knee.

  10. Detailed crustal structure of the North China and its implication for seismicity

    Science.gov (United States)

    Jiang, Wenliang; Wang, Xin; Tian, Tian; Zhang, Jingfa; Wang, Donglei

    2014-02-01

    Since the Mesozoic-Cenozoic era the North China Craton has experienced an important tectonic transition and it has given rise to complicated crustal structure and strong earthquake activity. Based on the large-scale surface gravity data, we studied the detailed crustal structure and seismogenic mechanism of the North China. The results indicate that the North China presents typical characteristics of adjoining depression and uplift, alternating basins and hills, inhomogeneous density and also great differences in crustal structure and Moho topography. The upper and middle crustal structures are dominated by the NNE-striking tectonic units, with many faults cut down to the middle crust. The lower crust is characterized by the folding-structure, with high and low-density placed alternately from west to east, presenting lateral heterogeneous feature. Adjusted by the gravity isostasy, Moho topography of the North China fluctuates greatly. Compared with the North China Basin, crustal thickness in the Western Taihang, northern Yanshan and Luzhong areas are much thicker while those densities are lower than the North China Basin. The dominating tectonic direction of the Moho topography strikes NE to NNE and undulates alternately from west to east. The epicenters are mostly concentrated in the upper and middle crust, especially the transitional areas between the high and low-gravity anomalies. The Tancheng earthquake in 1668, Sanhe earthquake in 1673, Tangshan earthquake in 1976, and all other seismic tectonic zones of the North China are all distributed in area where magma moves strongly beneath the crust, which is considered to be related to the movement of the high density, unstable and heat flows along the deep passage from the uppermost and asthenosphere due to the subduction of the Pacific slab towards the Eurasian plate.

  11. Insights on the Structural Details of Endonuclease EcoRI-DNA Complexes by Electron Spin Resonance

    Science.gov (United States)

    Sarver, Jessica

    2009-03-01

    Pulsed electron spin resonance (ESR) was used to probe the binding specificity of EcoRI, a restriction endonuclease. Using site-directed spin labeling, a nitroxide side chain was incorporated into the protein, enabling the use of ESR to study structural details of EcoRI. Distance measurements were performed on EcoRI mutants when bound to varying sequences of DNA using the Double Electron-Electron Resonance experiment. These distances demonstrated that the average structure in the arm regions of EcoRI, thought to play a major role in binding specificity, is the same when the protein binds to different sequences of DNA. Also, it was determined that the arms exhibit higher flexibility when bound to sequences other than the specific sequence due to the larger distance distributions acquired from these spin labeled complexes. Molecular dynamics (MD) simulations were performed on the spin-label-modified specific EcoRI-DNA crystal structure to model the average nitroxide orientation. The distance distributions from MD were found to be narrower than experiment, indicating the need for a more rigorous sampling of the nitroxide conformers in silico.

  12. Porous electrode apparatus for electrodeposition of detailed metal structures or microelectronic interconnections

    Science.gov (United States)

    Griffiths, Stewart K.; Nilson, Robert H.; Hruby, Jill M.

    2002-01-01

    An apparatus and procedure for performing microfabrication of detailed metal structures by electroforming metal deposits within small cavities. Two primary areas of application are: the LIGA process which manufactures complex three-dimensional metal parts and the damascene process used for electroplating line and via interconnections of microelectronic devices. A porous electrode held in contact or in close proximity with a plating substrate or mold top to ensure one-dimensional and uniform current flow into all mold cavities is used. Electrolyte is pumped over the exposed surface of the porous electrode to ensure uniform ion concentrations at this external surface. The porous electrode prevents electrolyte circulation within individual mold cavities, avoiding preferential enhancement of ion transport in cavities having favorable geometries. Both current flow and ion transport are one-dimensional and identical in all mold cavities, so all metal deposits grow at the same rate eliminating nonuniformities of the prior art.

  13. Visualisation of details of a complicated inner structure of model objects by the method of diffusion optical tomography

    International Nuclear Information System (INIS)

    Tret'yakov, Evgeniy V; Shuvalov, Vladimir V; Shutov, I V

    2002-01-01

    An approximate algorithm is tested for solving the problem of diffusion optical tomography in experiments on the visualisation of details of the inner structure of strongly scattering model objects containing scattering and semitransparent inclusions, as well as absorbing inclusions located inside other optical inhomogeneities. The stability of the algorithm to errors is demonstrated, which allows its use for a rapid (2 - 3 min) image reconstruction of the details of objects with a complicated inner structure. (laser biology and medicine)

  14. Molecular Details of Olfactomedin Domains Provide Pathway to Structure-Function Studies.

    Directory of Open Access Journals (Sweden)

    Shannon E Hill

    Full Text Available Olfactomedin (OLF domains are found within extracellular, multidomain proteins in numerous tissues of multicellular organisms. Even though these proteins have been implicated in human disorders ranging from cancers to attention deficit disorder to glaucoma, little is known about their structure(s and function(s. Here we biophysically, biochemically, and structurally characterize OLF domains from H. sapiens olfactomedin-1 (npoh-OLF, also called noelin, pancortin, OLFM1, and hOlfA, and M. musculus gliomedin (glio-OLF, also called collomin, collmin, and CRG-L2, and compare them with available structures of myocilin (myoc-OLF recently reported by us and R. norvegicus glio-OLF and M. musculus latrophilin-3 (lat3-OLF by others. Although the five-bladed β-propeller architecture remains unchanged, numerous physicochemical characteristics differ among these OLF domains. First, npoh-OLF and glio-OLF exhibit prominent, yet distinct, positive surface charges and copurify with polynucleotides. Second, whereas npoh-OLF and myoc-OLF exhibit thermal stabilities typical of human proteins near 55°C, and most myoc-OLF variants are destabilized and highly prone to aggregation, glio-OLF is nearly 20°C more stable and significantly more resistant to chemical denaturation. Phylogenetically, glio-OLF is most similar to primitive OLFs, and structurally, glio-OLF is missing distinguishing features seen in OLFs such as the disulfide bond formed by N- and C- terminal cysteines, the sequestered Ca2+ ion within the propeller central hydrophilic cavity, and a key loop-stabilizing cation-π interaction on the top face of npoh-OLF and myoc-OLF. While deciphering the explicit biological functions, ligands, and binding partners for OLF domains will likely continue to be a challenging long-term experimental pursuit, we used structural insights gained here to generate a new antibody selective for myoc-OLF over npoh-OLF and glio-OLF as a first step in overcoming the impasse in

  15. PROCESSING OF UAV BASED RANGE IMAGING DATA TO GENERATE DETAILED ELEVATION MODELS OF COMPLEX NATURAL STRUCTURES

    Directory of Open Access Journals (Sweden)

    T. K. Kohoutek

    2012-07-01

    Full Text Available Unmanned Aerial Vehicles (UAVs are more and more used in civil areas like geomatics. Autonomous navigated platforms have a great flexibility in flying and manoeuvring in complex environments to collect remote sensing data. In contrast to standard technologies such as aerial manned platforms (airplanes and helicopters UAVs are able to fly closer to the object and in small-scale areas of high-risk situations such as landslides, volcano and earthquake areas and floodplains. Thus, UAVs are sometimes the only practical alternative in areas where access is difficult and where no manned aircraft is available or even no flight permission is given. Furthermore, compared to terrestrial platforms, UAVs are not limited to specific view directions and could overcome occlusions from trees, houses and terrain structures. Equipped with image sensors and/or laser scanners they are able to provide elevation models, rectified images, textured 3D-models and maps. In this paper we will describe a UAV platform, which can carry a range imaging (RIM camera including power supply and data storage for the detailed mapping and monitoring of complex structures, such as alpine riverbed areas. The UAV platform NEO from Swiss UAV was equipped with the RIM camera CamCube 2.0 by PMD Technologies GmbH to capture the surface structures. Its navigation system includes an autopilot. To validate the UAV-trajectory a 360° prism was installed and tracked by a total station. Within the paper a workflow for the processing of UAV-RIM data is proposed, which is based on the processing of differential GNSS data in combination with the acquired range images. Subsequently, the obtained results for the trajectory are compared and verified with a track of a UAV (Falcon 8, Ascending Technologies carried out with a total station simultaneously to the GNSS data acquisition. The results showed that the UAV's position using differential GNSS could be determined in the centimetre to the decimetre

  16. The detailed orbital-decomposed electronic structures of tetragonal ZrO2

    International Nuclear Information System (INIS)

    Zhang, Yan; Ji, Vincent; Xu, Ke-Wei

    2013-01-01

    The detailed orbital-decomposed electronic structures of the tetragonal zirconia have been investigated by using the first-principles projector augmented wave (PAW) potential within the generalized gradient approximation (GGA) as well as taking into account the on-site Coulomb repulsive interaction (GGA+U). The deviation of the minimization energy from d z =0 to d z =±0.032 for experimental lattice constants (a=3.605 Å and c=5.180 Å) confirms the alternating displacement of the oxygen atoms, which causes half of the Zr---O bonds stronger and the other half weaker compared with the bonds in symmetric (d z =0) zirconia. The distorted tetragonal environment of the eight oxygen anions around Zr site splits the five-fold degenerate d states of a free Zr atom into triply degenerate t 2g (d xy , d yz and d zx ) states and doubly degenerate e g (d z 2 and d x 2 -y 2 ) states. The additional covalent character upon Zr-O ionic bonds are resulted from the hybridization between the O(2s), O(2p) and Zr(5s), triply degenerate t 2g (d xy , d yz and d zx ) states of Zr(4d). The O(2s) and O(2p) states are clearly separated and no hybrid bonding states are formed

  17. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Isa, M.F.M.. Vol 9, No 3S (2017): Special Issue - Articles Experimental and numerical investigation on blast wave propagation in soil structure. Abstract PDF · Vol 9, No 3S (2017): Special Issue - ...

  18. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... No 3S (2017): Special Issue - Articles Experimental and numerical investigation on blast wave propagation in soil structure. Abstract PDF · Vol 9, No 3S (2017): Special Issue - Articles Simulation on ...

  19. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... to blast loadings. Abstract PDF · Vol 9, No 3S (2017): Special Issue - Articles Experimental and numerical investigation on blast wave propagation in soil structure. Abstract PDF. ISSN: 1112-9867.

  20. Detailed imaging of flowing structures at depth using microseismicity: a tool for site investigation?

    Science.gov (United States)

    Pytharouli, S.; Lunn, R. J.; Shipton, Z. K.

    2011-12-01

    Field evidence shows that faults and fractures can act as focused pathways or barriers for fluid migration. This is an important property for modern engineering problems, e.g., CO2 sequestration, geological radioactive waste disposal, geothermal energy exploitation, land reclamation and remediation. For such applications the detailed characterization of the location, orientation and hydraulic properties of existing fractures is necessary. These investigations are expensive, requiring the hire of expensive equipment (excavator or drill rigs), which incur standing charges when not in use. In addition, they only provide information for discrete sample 'windows'. Non-intrusive methods have the ability to gather information across an entire area. Methods including electrical resistivity/conductivity and ground penetrating radar (GRP), have been used as tools for site investigations. Their imaging ability is often restricted due to unfavourable on-site conditions e.g. GRP is not useful in cases where a layer of clay or reinforced concrete is present. Our research has shown that high quality seismic data can be successfully used in the detailed imaging of sub-surface structures at depth; using induced microseismicity data recorded beneath the Açu reservoir in Brazil we identified orientations and values of average permeability of open shear fractures at depths up to 2.5km. Could microseismicity also provide information on the fracture width in terms of stress drops? First results from numerical simulations showed that higher stress drop values correspond to narrower fractures. These results were consistent with geological field observations. This study highlights the great potential of using microseismicity data as a supplementary tool for site investigation. Individual large-scale shear fractures in large rock volumes cannot currently be identified by any other geophysical dataset. The resolution of the method is restricted by the detection threshold of the local

  1. Knowledge-based instantiation of full atomic detail into coarse-grain RNA 3D structural models.

    Science.gov (United States)

    Jonikas, Magdalena A; Radmer, Randall J; Altman, Russ B

    2009-12-15

    The recent development of methods for modeling RNA 3D structures using coarse-grain approaches creates a need to bridge low- and high-resolution modeling methods. Although they contain topological information, coarse-grain models lack atomic detail, which limits their utility for some applications. We have developed a method for adding full atomic detail to coarse-grain models of RNA 3D structures. Our method [Coarse to Atomic (C2A)] uses geometries observed in known RNA crystal structures. Our method rebuilds full atomic detail from ideal coarse-grain backbones taken from crystal structures to within 1.87-3.31 A RMSD of the full atomic crystal structure. When starting from coarse-grain models generated by the modeling tool NAST, our method builds full atomic structures that are within 1.00 A RMSD of the starting structure. The resulting full atomic structures can be used as starting points for higher resolution modeling, thus bridging high- and low-resolution approaches to modeling RNA 3D structure. Code for the C2A method, as well as the examples discussed in this article, are freely available at www.simtk.org/home/c2a. russ.altman@stanford.edu

  2. Structural alterations of the superior temporal gyrus in schizophrenia: Detailed subregional differences.

    Science.gov (United States)

    Ohi, K; Matsuda, Y; Shimada, T; Yasuyama, T; Oshima, K; Sawai, K; Kihara, H; Nitta, Y; Okubo, H; Uehara, T; Kawasaki, Y

    2016-05-01

    Reduced gray matter volumes in the superior temporal gyrus (STG) have been reported in patients with schizophrenia. Such volumetric abnormalities might denote alterations in cortical thickness, surface area, local gyrification or all of these factors. The STG can be anatomically divided into five subregions using automatic parcellation in FreeSurfer: lateral aspect of the STG, anterior transverse temporal gyrus of Heschl gyrus (HG), planum polare (PP) of the STG, planum temporale (PT) of the STG and transverse temporal sulcus. We acquired magnetic resonance imaging (MRI) 3T scans from 40 age- and sex-matched patients with schizophrenia and 40 healthy subjects, and the scans were automatically processed using FreeSurfer. General linear models were used to assess group differences in regional volumes and detailed thickness, surface area and local gyrification. As expected, patients with schizophrenia had significantly smaller bilateral STG volumes than healthy subjects. Of the five subregions in the STG, patients with schizophrenia showed significantly and marginally reduced volumes in the lateral aspect of the STG and PT of the STG bilaterally compared with healthy subjects. The volumetric alteration in bilateral lateral STG was derived from both the cortical thickness and surface area but not local gyrification. There was no significant laterality of the alteration in the lateral STG between patients and controls and no correlation among the structures and clinical characteristics. These findings suggest that of five anatomical subregions in the STG, the lateral STG is one of the most meaningful regions for brain pathophysiology in schizophrenia. Copyright © 2016 Elsevier Masson SAS. All rights reserved.

  3. A detailed study of the structure of the nested planetary nebula, Hb 12, the Matryoshka nebula

    Energy Technology Data Exchange (ETDEWEB)

    Clark, D. M.; López, J. A. [Instituto de Astronomía, Universidad Nacional Autónoma de México, Campus Ensenada, Ensenada, Baja California, 22860 (Mexico); Edwards, M. L. [LBT Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Winge, C., E-mail: dmclark@astrosen.unam.mx, E-mail: jal@astrosen.unam.mx, E-mail: medwards@lbto.org, E-mail: cwinge@gemini.edu [Gemini Observatory, Southern Operations Center, c/o AURA Inc., Casilla 603, La Serena (Chile)

    2014-11-01

    We present near-IR, integral field spectroscopic observations of the planetary nebula (PN) Hb 12 using Near-infrared Integral Field Spectrograph (NIFS) on Gemini-North. Combining NIFS with the adaptive optics system Altair, we provide a detailed study of the core and inner structure of this PN. We focus the analysis in the prominent emission lines [Fe II] (1.6436 μm), He I (2.0585 μm), H{sub 2} (2.1214 μm), and Br{sub γ} (2.16553 μm). We find that the [Fe II] emission traces a tilted system of bipolar lobes, with the northern lobe being redshifted and the southern lobe blueshifted. The [Fe II] emission is very faint at the core and only present close to the systemic velocity. There is no H{sub 2} emission in the core, whereas the core is prominent in the He I and Br{sub γ} recombination lines. The H{sub 2} emission is concentrated in equatorial arcs of emission surrounding the core and expanding at ∼30 km s{sup –1}. These arcs are compared with Hubble Space Telescope images and shown to represent nested loops belonging to the inner sections of a much larger bipolar structure that replicates the inner one. The He I and Br{sub γ} emission from the core clearly show a cylindrical central cavity that seems to represent the inner walls of an equatorial density enhancement or torus. The torus is 0.''2 wide (≡200 AU radius at a distance of 2000 pc) and expanding at ≤30 km s{sup –1}. The eastern wall of the inner torus is consistently more intense than the western wall, which could indicate the presence of an off-center star, such as is observed in the similar hourglass PN, MyCn 18. A bipolar outflow is also detected in Br{sub γ} emerging within 0.''1 from the core at ∼ ± 40 km s{sup –1}.

  4. Light water reactor fuel analysis code FEMAXI-IV(Ver.2). Detailed structure and user`s manual

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Motoe [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment; Saitou, Hiroaki

    1997-11-01

    A light water reactor fuel behavior analysis code FEMAXI-IV(Ver.2) was developed as an improved version of FEMAXI-IV. Development of FEMAXI-IV has been already finished in 1992, though a detailed structure and input manual of the code have not been open to users yet. Here, the basic theories and structure, the models and numerical solutions applied to FEMAXI-IV(Ver.2), and the material properties adopted in the code are described in detail. In FEMAXI-IV(Ver.2), programming bugs in previous FEMAXI-IV were eliminated, renewal of the pellet thermal conductivity was performed, and a model of thermal-stress restraint on FP gas release was incorporated. For facilitation of effective and wide-ranging application of the code, methods of input/output of the code are also described in detail, and sample output is included. (author)

  5. A Detailed Derivation of Gaussian Orbital-Based Matrix Elements in Electron Structure Calculations

    Science.gov (United States)

    Petersson, T.; Hellsing, B.

    2010-01-01

    A detailed derivation of analytic solutions is presented for overlap, kinetic, nuclear attraction and electron repulsion integrals involving Cartesian Gaussian-type orbitals. It is demonstrated how s-type orbitals can be used to evaluate integrals with higher angular momentum via the properties of Hermite polynomials and differentiation with…

  6. Detailed simulation of structural color generation inspired by the Morpho butterfly.

    Science.gov (United States)

    Steindorfer, Michael A; Schmidt, Volker; Belegratis, Maria; Stadlober, Barbara; Krenn, Joachim R

    2012-09-10

    The brilliancy and variety of structural colors found in nature has become a major scientific topic in recent years. Rapid-prototyping processes enable the fabrication of according structures, but the technical exploitation requires a profound understanding of structural features and material properties regarding the generation of reflected color. This paper presents an extensive simulation of the reflectance spectra of a simplified 2D Morpho butterfly wing model by utilizing the finite-difference time-domain method. The structural parameters are optimized for reflection in a given spectral range. A comparison to simpler models, such as a plane dielectric layer stack, provides an understanding of the origin of the reflection behavior. We find that the wavelength of the reflection maximum is mainly set by the lateral dimensions of the structures. Furthermore small variations of the vertical dimensions leave the spectral position of the reflectance wavelength unchanged, potentially reducing grating effects.

  7. 10 CFR 745.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-01-01

    ... human subjects. 745.119 Section 745.119 Energy DEPARTMENT OF ENERGY PROTECTION OF HUMAN SUBJECTS § 745.119 Research undertaken without the intention of involving human subjects. In the event research is undertaken without the intention of involving human subjects, but it is later proposed to involve human...

  8. 15 CFR 27.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-01-01

    ... intention of involving human subjects. 27.119 Section 27.119 Commerce and Foreign Trade Office of the Secretary of Commerce PROTECTION OF HUMAN SUBJECTS § 27.119 Research undertaken without the intention of involving human subjects. In the event research is undertaken without the intention of involving human...

  9. 14 CFR 1230.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-01-01

    ... of involving human subjects. 1230.119 Section 1230.119 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PROTECTION OF HUMAN SUBJECTS § 1230.119 Research undertaken without the intention of involving human subjects. In the event research is undertaken without the intention of involving...

  10. 28 CFR 46.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Research undertaken without the intention of involving human subjects. 46.119 Section 46.119 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) PROTECTION OF HUMAN SUBJECTS § 46.119 Research undertaken without the intention of involving...

  11. 49 CFR 11.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-10-01

    ... involving human subjects. 11.119 Section 11.119 Transportation Office of the Secretary of Transportation PROTECTION OF HUMAN SUBJECTS § 11.119 Research undertaken without the intention of involving human subjects. In the event research is undertaken without the intention of involving human subjects, but it is...

  12. 45 CFR 690.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-10-01

    ... involving human subjects. 690.119 Section 690.119 Public Welfare Regulations Relating to Public Welfare (Continued) NATIONAL SCIENCE FOUNDATION PROTECTION OF HUMAN SUBJECTS § 690.119 Research undertaken without the intention of involving human subjects. In the event research is undertaken without the intention...

  13. 22 CFR 225.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-04-01

    ... involving human subjects. 225.119 Section 225.119 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT PROTECTION OF HUMAN SUBJECTS § 225.119 Research undertaken without the intention of involving human subjects. In the event research is undertaken without the intention of involving human subjects, but it is...

  14. 16 CFR 1028.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-01-01

    ... involving human subjects. 1028.119 Section 1028.119 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION GENERAL PROTECTION OF HUMAN SUBJECTS § 1028.119 Research undertaken without the intention of involving human subjects. In the event research is undertaken without the intention of involving human subjects...

  15. 7 CFR 1c.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-01-01

    ... human subjects. 1c.119 Section 1c.119 Agriculture Office of the Secretary of Agriculture PROTECTION OF HUMAN SUBJECTS § 1c.119 Research undertaken without the intention of involving human subjects. In the event research is undertaken without the intention of involving human subjects, but it is later proposed...

  16. Detailed petrographic-structural study of an outcrop of Crystalline Basement of Montevideo

    International Nuclear Information System (INIS)

    Pascale, A.; Oyhantçabal, P.

    2010-01-01

    Preliminary data analysis of detailed outcrop Punta Virgilo, located on the S E coast of the department of Montevideo are presented. The investigated outcrop includes gneisses, amphibolite s and several generations of pegmatite and aplite dikes of Paleoproterozoic metamorphic basement, plus a set of dikes emplaced lamprófido exhumed once the area. Petrographic and microstructural studies of metamorphic units allowed to determine the conditions of metamorphism and deformation temperature between 520-720 ° C and pressure between 2 and 6 kbar (depth of 10 to 23 km)

  17. Author Details

    African Journals Online (AJOL)

    Kioni, P N. Vol 9, No 1 (2007) - Articles Detailed structure of pipe flow with water hammer oscillations. Abstract. ISSN: 1561-7645. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

  18. Detailed mass analysis of structural heterogeneity in monoclonal antibodies using native mass spectrometry

    NARCIS (Netherlands)

    Rosati, Sara; Yang, Yang; Barendregt, Arjan; Heck, Albert J R

    The molecular complexity of biopharmaceuticals puts severe demands on the bioanalytical techniques required for their comprehensive structural characterization. Mass spectrometry (MS) has gained importance in the analysis of biopharmaceuticals, taking different complementary approaches ranging from

  19. Structural biologists capture detailed image of gene regulator’s fleeting form | Center for Cancer Research

    Science.gov (United States)

    Using an ultrafast, high-intensity radiation source called an X-ray free-electron laser (XFEL), scientists have captured an atomic-level picture of an RNA structure called a riboswitch as it reorganizes itself to regulate protein production. The structure they visualized has never before been seen, and likely exists for only milliseconds after the riboswitch first encounters its activating molecule.  Read more...  

  20. Detailed inner structure of methane hydrate concentrated zone of lobe type

    Energy Technology Data Exchange (ETDEWEB)

    Kobayashi, T.; Saeki, T.; Inamori, T.; Fujii, T.; Shimoda, N. [Japan Oil, Gas and Metals National Corp., Chiba (Japan)

    2008-07-01

    Large gas hydrate deposits are located in ocean regions close to Japan. This paper discussed a research project conducted by a Japanese company as part of a national program to assess gas hydrates as energy sources. Seismic data from drilling surveys and velocity analyses were used to determine methane hydrate zones. Seismic geomorphology analyses showed that the hydrates were concentrated within turbidite sand layers in channels and lobes. A detailed analysis of the methane hydrate-concentrated zone of a lobe configuration was conducted using waves from methane hydrate-concentrated zones identified in the seismic studies. Reflectors at wells were correlated to the tops of the methane hydrate-bearing sand layers. The amplitude variation of the reflected waves was correlated to the sand layers. Results from the study will be used to characterize the distribution of sand layers and determine their relationship to methane hydrates. 11 figs.

  1. Detailed Study of the Internal Structure of a Red-giant Star Observed with Kepler

    DEFF Research Database (Denmark)

    Di Mauro, M. P.; Ventura, R.; Cardini, D.

    2012-01-01

    We study the internal structure and evolutionary state of KIC 4351319, a red-giant star observed with the Kepler satellite. The use of 25 individual oscillation frequencies, together with the accurate atmospheric data provided by ground-based spectroscopic observations, allowed us to estimate the...

  2. Detailed Study of the Internal Structure of a Red-giant Star Observed with Kepler

    NARCIS (Netherlands)

    Di Mauro, M.P.; Ventura, R.; Cardini, D.; Catanzaro, G.; Barban, C.; Bedding, T.R.; Christensen-Dalsgaard, J.; De Ridder, J.; Hekker, S.; Huber, D.; Kallinger, T.; Kinemuchi, K.; Kjeldsen, H.; Miglio, A.; Montalbán, J.; Mosser, B.; Mullally, F.; Stello, D.; Still, M.; Uytterhoeven, K.

    2012-01-01

    We study the internal structure and evolutionary state of KIC 4351319, a red-giant star observed with the Kepler satellite. The use of 25 individual oscillation frequencies, together with the accurate atmospheric data provided by ground-based spectroscopic observations, allowed us to estimate the

  3. High Resolution MRI Reveals Detailed Layer Structures in Early Human Fetal Stages: In Vitro Study with Histologic Correlation.

    Science.gov (United States)

    Wang, Rongpin; Dai, Guangping; Takahashi, Emi

    2015-01-01

    An understanding of normal fetal brain development is essential in detecting the early onset of brain disorders. It is challenging to obtain high-quality images that show detailed local anatomy in the early fetal stages because the fetal brain is very small with rapidly-changing complex structures related to brain development, including neurogenesis, neuronal migration, and axonal elongation. Previous magnetic resonance imaging (MRI) studies detected three layers throughout the fetal cerebral wall that showed differences in MR contrasts at 10 gestational weeks (GW), which is one of the earliest ages studied using MRI. Contrary to the MRI studies, histological studies found more layers at this fetal age. The purpose of this work is to study the development of brain structures from an early fetal period to an early second trimester stage using ex vivo MRI and compare it to histology. Special attention was paid to laminar structures in the cerebral wall. T2-weighted imaging was performed on fetal brain specimens ranging from 10 GW to 18 GW on a 4.7 tesla MR scanner. We obtained standard grayscale as well as color-coded images using weighted red-green-blue scales, and compared them with the histological images. Our study confirmed laminar structure in the cerebral wall in all the fetal specimens studied. We found that MRI detected four layers within the cerebral wall as early as 10 GW during the early fetal period (10-13 GW). Early second trimester (15-18 GW) was characterized by the emergence of subplate structures and five layers within the cerebral wall. The color-coded images were more useful than the standard grayscale images in detecting the laminar structures. Scans with appropriate parameters from a high tesla MR scanner showed detailed laminar structures even through a very small and thin cerebral wall at 10 GW ex vivo. A combination of high-resolution structural imaging and color-coding processing with histological analysis may be a potential tool for

  4. High resolution MRI reveals detailed layer structures in early human fetal stages: In vitro study with histologic correlation

    Directory of Open Access Journals (Sweden)

    Rongpin eWang

    2015-11-01

    Full Text Available An understanding of normal fetal brain development is essential in detecting the early onset of brain disorders. It is challenging to obtain high-quality images that show detailed local anatomy in the early fetal stages because the fetal brain is very small with rapidly-changing complex structures related to brain development, including neurogenesis, neuronal migration, and axonal elongation. Previous magnetic resonance imaging (MRI studies detected three layers throughout the fetal cerebral wall that showed differences in MR contrasts at 10 gestational weeks (GW, which is one of the earliest ages studied using MRI. Contrary to the MRI studies, histological studies found more layers at this fetal age. The purpose of this work is to study the development of brain structures from an early fetal period to an early second trimester stage using ex vivo MRI and compare it to histology. Special attention was paid to laminar structures in the cerebral wall. T2-weighted imaging was performed on fetal brain specimens ranging from 10 GW to 18 GW on a 4.7 tesla MR scanner. We obtained standard grayscale as well as color-coded images using weighted red-green-blue scales, and compared them with the histological images. Our study confirmed laminar structure in the cerebral wall in all the fetal specimens studied. We found that MRI detected four layers within the cerebral wall as early as 10 GW during the early fetal period (10-13 GW. Early second trimester (15-18 GW was characterized by the emergence of subplate structures and five layers within the cerebral wall. The color-coded images were more useful than the standard grayscale images in detecting the laminar structures. Scans with appropriate parameters from a high tesla MR scanner showed detailed laminar structures even through a very small and thin cerebral wall at 10 GW ex vivo. A combination of high-resolution structural imaging and color-coding processing with histological analysis may be a potential

  5. NMR Crystallography of Enzyme Active Sites: Probing Chemically-Detailed, Three-Dimensional Structure in Tryptophan Synthase

    Science.gov (United States)

    Dunn, Michael F.

    2013-01-01

    Conspectus NMR crystallography – the synergistic combination of X-ray diffraction, solid-state NMR spectroscopy, and computational chemistry – offers unprecedented insight into three-dimensional, chemically-detailed structure. From its initial role in refining diffraction data of organic and inorganic solids, NMR crystallography is now being developed for application to active sites in biomolecules, where it reveals chemically-rich detail concerning the interactions between enzyme site residues and the reacting substrate that is not achievable when X-ray, NMR, or computational methodologies are applied in isolation. For example, typical X-ray crystal structures (1.5 to 2.5 Å resolution) of enzyme-bound intermediates identify possible hydrogen-bonding interactions between site residues and substrate, but do not directly identify the protonation state of either. Solid-state NMR can provide chemical shifts for selected atoms of enzyme-substrate complexes, but without a larger structural framework in which to interpret them, only empirical correlations with local chemical structure are possible. Ab initio calculations and molecular mechanics can build models for enzymatic processes, but rely on chemical details that must be specified. Together, however, X-ray diffraction, solid-state NMR spectroscopy, and computational chemistry can provide consistent and testable models for structure and function of enzyme active sites: X-ray crystallography provides a coarse framework upon which models of the active site can be developed using computational chemistry; these models can be distinguished by comparison of their calculated NMR chemical shifts with the results of solid-state NMR spectroscopy experiments. Conceptually, each technique is a puzzle piece offering a generous view of the big picture. Only when correctly pieced together, however, can they reveal the big picture at highest resolution. In this Account, we detail our first steps in the development of NMR

  6. Detailed Post-Soft Impact Progressive Damage Assessment for Hybrid Structure Jet Engines

    Science.gov (United States)

    Siddens, Aaron; Bayandor, Javid; Celestina, Mark L.

    2014-01-01

    Currently, certification of engine designs for resistance to bird strike is reliant on physical tests. Predictive modeling of engine structural damage has mostly been limited to evaluation of individual forward section components, such as fan blades within a fixed frame of reference, to direct impact with a bird. Such models must be extended to include interactions among engine components under operating conditions to evaluate the full extent of engine damage. This paper presents the results of a study aim to develop a methodology for evaluating bird strike damage in advanced propulsion systems incorporating hybrid composite/metal structures. The initial degradation and failure of individual fan blades struck by a bird were investigated. Subsequent damage to other fan blades and engine components due to resultant violent fan assembly vibrations and fragmentation was further evaluated. Various modeling parameters for the bird and engine components were investigated to determine guidelines for accurately capturing initial damage and progressive failure of engine components. Then, a novel hybrid structure modeling approach was investigated and incorporated into the crashworthiness methodology. Such a tool is invaluable to the process of design, development, and certification of future advanced propulsion systems.

  7. Determining the Thickness and the Sub-Structure Details of the Magnetopause from MMS Data

    Science.gov (United States)

    Manuzzo, R.; Belmont, G.; Rezeau, L.

    2017-12-01

    The magnetopause thickness, like its mean location, is a notion that can have different meanings depending which parameters are considered (magnetic field or plasma properties). In any case, all the determinations have been done, up to now, considering the magnetopause boundary as a structure strictly stationary and 1D (or with a simple curvature). These determinations have shown to be very sensitive to the accuracy of the normal direction, because it affects the projection of the quantities of interest in studying geometrical sensitive phenomena such as the magnetic reconnection. Furthermore, the 1D stationary assumptions are likely to be rarely verified at the real magnetopause. The high quality measurements of MMS and their high time resolution now allow investigating the magnetopause structure in its more delicate features and with an unequal spatio-temporal accuracy. We make use here of the MDD tool developed by [Shi et al., 2005], which gives the dimensionality of the gradients from the four-point measurements of MMS and allows estimating the direction of the local normal when defined. Extending this method to various quantities, we can draw their profiles as functions of a physical abscissa (length instead of time) along a sensible normal. This procedure allows answering quantitatively the questions concerning the locations and the thicknesses of the different sub-structures encountered inside the "global magnetopause" [Rezeau, 2017, paper submitted to JGR-Space Physics].

  8. Detailed assessment of global transport-energy models’ structures and projections

    Energy Technology Data Exchange (ETDEWEB)

    Yeh, Sonia; Mishra, Gouri Shankar; Fulton, Lew; Kyle, Page; McCollum, David L.; Miller, Joshua; Cazzola, Pierpaolo; Teter, Jacob

    2017-08-01

    This paper focuses on comparing the frameworks and projections from four major global transportation models with considerable transportation technology and behavioral detail. We analyze and compare the modeling frameworks, underlying data, assumptions, intermediate parameters, and projections to identify the sources of divergence or consistency, as well as key knowledge gaps. We find that there are significant differences in the base-year data and key parameters for future projections, especially for developing countries. These include passenger and freight activity, mode shares, vehicle ownership rates, and even energy consumption by mode, particularly for shipping, aviation and trucking. This may be due in part to a lack of previous efforts to do such consistency-checking and “bench-marking.” We find that the four models differ in terms of the relative roles of various mitigation strategies to achieve a 2°C / 450 ppm CO2e target: the economics-based integrated assessment models favor the use of low carbon fuels as the primary mitigation option followed by efficiency improvements, whereas transport-only and expert-based models favor efficiency improvements of vehicles followed by mode shifts. We offer recommendations for future modeling improvements focusing on (1) reducing data gaps; (2) translating the findings from this study into relevant policy implications such as feasibility of current policy goals, additional policy targets needed, regional vs. global reductions, etc.; (3) modeling strata of demographic groups to improve understanding of vehicle ownership levels, travel behavior, and urban vs. rural considerations; and (4) conducting coordinated efforts in aligning input assumptions and historical data, policy analysis, and modeling insights.

  9. A detailed study of nucleon structure function in nuclei in the valence quark region

    Energy Technology Data Exchange (ETDEWEB)

    Bianchi, N. [INFN-Laboratori, Nazionali di Frascati (Italy)

    1994-04-01

    The so called {open_quotes}EMC effect{close_quotes} discovered during the 1980`s, has caused a big controversy in the community of nuclear and high energy physicists; during the last ten years, five experiments have been performed in different laboratories and several hundreds of papers about the possible interpretation of the modification of the nucleon structure function inside nuclei have been published. However, from the experimental point of view, the main goal of four experiments (EMC, BCDMS, NMC, FNAL) has been to emphasize the region of low x{sub b}, where shadowing effects appear. In the region of valence quarks and nuclear effects (x{sub b} > 0.1 - 0.2) the most reliable data presently available are from the SLAC E139 experiment performed in 1983 with only 80 hours of beam time. New precise data in the valence quark region are necessary to measure separate structure functions F{sub 2}(x{sub b}, Q{sup 2}) and R{sup lt}(x{sub b},Q{sup 2}) = {sigma}{sub l}/{sigma}{sub t}, and to investigate the real A-dependence of the ratio between bound and free-nucleon structure functions which is not completely defined by the SLAC data. Moreover, from the nuclear physics point of view, a measurement on some unexplored nuclei, like {sup 3}He and {sup 48}Ca, would be of great interest. The intermediate scaling region (0.1 < x{sub b} < 0.7) would be accessible at CEBAF if the machine energy will reach 6-8 GeV, as suggested by all the tests performed on the RF cavities. This physics program has been already presented in two letter of intents.

  10. Unusual Lipid A from a Cold-Adapted Bacterium: Detailed Structural Characterization.

    Science.gov (United States)

    Casillo, Angela; Ziaco, Marcello; Lindner, Buko; Parrilli, Ermenegilda; Schwudke, Dominik; Holgado, Aurora; Verstrepen, Lynn; Sannino, Filomena; Beyaert, Rudi; Lanzetta, Rosa; Tutino, Maria Luisa; Corsaro, Maria Michela

    2017-09-19

    Colwellia psychrerythraea 34H is a Gram-negative cold-adapted microorganism that adopts many strategies to cope with the limitations associated with the low temperatures of its habitat. In this study, we report the complete characterization of the lipid A moiety from the lipopolysaccharide of Colwellia. Lipid A and its partially deacylated derivative were completely characterized by high-resolution mass spectrometry, NMR spectroscopy, and chemical analysis. An unusual structure with a 3-hydroxy unsaturated tetradecenoic acid as a component of the primary acylation pattern was identified. In addition, the presence of a partially acylated phosphoglycerol moiety on the secondary acylation site at the 3-position of the reducing 2-amino-2-deoxyglucopyranose unit caused tremendous natural heterogeneity in the structure of lipid A. Biological-activity assays indicated that C. psychrerythraea 34H lipid A did not show an agonistic or antagonistic effect upon testing in human macrophages. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  11. Detailed design of a lattice composite fuselage structure by a mixed optimization method

    Science.gov (United States)

    Liu, D.; Lohse-Busch, H.; Toropov, V.; Hühne, C.; Armani, U.

    2016-10-01

    In this article, a procedure for designing a lattice fuselage barrel is developed. It comprises three stages: first, topology optimization of an aircraft fuselage barrel is performed with respect to weight and structural performance to obtain the conceptual design. The interpretation of the optimal result is given to demonstrate the development of this new lattice airframe concept for the fuselage barrel. Subsequently, parametric optimization of the lattice aircraft fuselage barrel is carried out using genetic algorithms on metamodels generated with genetic programming from a 101-point optimal Latin hypercube design of experiments. The optimal design is achieved in terms of weight savings subject to stability, global stiffness and strain requirements, and then verified by the fine mesh finite element simulation of the lattice fuselage barrel. Finally, a practical design of the composite skin complying with the aircraft industry lay-up rules is presented. It is concluded that the mixed optimization method, combining topology optimization with the global metamodel-based approach, allows the problem to be solved with sufficient accuracy and provides the designers with a wealth of information on the structural behaviour of the novel anisogrid composite fuselage design.

  12. Accuracy assessment of modeling architectural structures and details using terrestrial laser scanning

    Directory of Open Access Journals (Sweden)

    M. Kedzierski

    2015-08-01

    Full Text Available One of the most important aspects when performing architectural documentation of cultural heritage structures is the accuracy of both the data and the products which are generated from these data: documentation in the form of 3D models or vector drawings. The paper describes an assessment of the accuracy of modelling data acquired using a terrestrial phase scanner in relation to the density of a point cloud representing the surface of different types of construction materials typical for cultural heritage structures. This analysis includes the impact of the scanning geometry: the incidence angle of the laser beam and the scanning distance. For the purposes of this research, a test field consisting of samples of different types of construction materials (brick, wood, plastic, plaster, a ceramic tile, sheet metal was built. The study involved conducting measurements at different angles and from a range of distances for chosen scanning densities. Data, acquired in the form of point clouds, were then filtered and modelled. An accuracy assessment of the 3D model was conducted by fitting it with the point cloud. The reflection intensity of each type of material was also analyzed, trying to determine which construction materials have the highest reflectance coefficients, and which have the lowest reflection coefficients, and in turn how this variable changes for different scanning parameters. Additionally measurements were taken of a fragment of a building in order to compare the results obtained in laboratory conditions, with those taken in field conditions.

  13. Leak tight sealants and joint details for concrete structure in RAPP

    International Nuclear Information System (INIS)

    Singha Roy, P.K.; Baste, M.S.

    1975-01-01

    Leak tightness may pertain to either air or water and in extreme cases each will require separate consideration based on general basic requirements. Leak-tight sealants against air pressure are required in the construction joints and around penetrations in the concrete containment structures. The containment structures should be able to withstand the maximum anticipated design pressure during the incident of a MCA with only minimal leakage (0.1% of bldg. volume per day in RAPP) which is mostly through these joints. Apart from proper joint design and preparation the sealant itself must have superb adhesion to the concrete surface and integrify throughout its service life to prevent any rupture or micro-cracks at any section of the joint. Leak tightness pertains to water tightness as well. A critical water-tight joint at the bottom dome of the prestressed concrete dousing tank at its junction with the 36 inches dia dousing water pipes constructed in RAPP-2, which should be able to withstand the water pressure, continuous submergence in the water of the tank and the longitudinal and lateral movement of the water pipes during opening and closure of the dousing valves, has been made and hydrostatically tested when not even the slight sweating was found. The construction and materials of the above joints and the sealant along with the properties and performance observed during testing/use are described. As the sealant used is an imported poly-sulphide caulking compound suggestions have also been made, which may be kept in mind while developing an Indian substitute. (author)

  14. Describing qualitative research undertaken with randomised controlled trials in grant proposals: a documentary analysis

    Science.gov (United States)

    2014-01-01

    Background There is growing recognition of the value of conducting qualitative research with trials in health research. It is timely to reflect on how this qualitative research is presented in grant proposals to identify lessons for researchers and research commissioners. As part of a larger study focusing on how to maximise the value of undertaking qualitative research with trials, we undertook a documentary analysis of proposals of funded studies. Methods Using the metaRegister of Controlled Trials (mRCT) database we identified trials funded in the United Kingdom, ongoing between 2001 and 2010, and reporting the use of qualitative research. We requested copies of proposals from lead researchers. We extracted data from the proposals using closed and open questions, analysed using descriptive statistics and content analysis respectively. Results 2% (89/3812) of trials in the mRCT database described the use of qualitative research undertaken with the trial. From these 89 trials, we received copies of 36 full proposals, of which 32 met our inclusion criteria. 25% used less than a single paragraph to describe the qualitative research. The aims of the qualitative research described in these proposals focused mainly on the intervention or trial conduct. Just over half (56%) of the proposals included an explicit rationale for conducting the qualitative research with the trial, the most frequent being to optimise implementation into clinical practice or to interpret trial findings. Key information about methods, expertise and resources was missing in a large minority of proposals, in particular sample size, type of analysis, and non-personnel resources. 28% specifically stated that qualitative researchers would conduct the qualitative research. Conclusions Our review of proposals of successfully funded studies identified good practice but also identified limited space given to describing the qualitative research, with an associated lack of attention to the rationale for

  15. Describing qualitative research undertaken with randomised controlled trials in grant proposals: a documentary analysis.

    Science.gov (United States)

    Drabble, Sarah J; O'Cathain, Alicia; Thomas, Kate J; Rudolph, Anne; Hewison, Jenny

    2014-02-18

    There is growing recognition of the value of conducting qualitative research with trials in health research. It is timely to reflect on how this qualitative research is presented in grant proposals to identify lessons for researchers and research commissioners. As part of a larger study focusing on how to maximise the value of undertaking qualitative research with trials, we undertook a documentary analysis of proposals of funded studies. Using the metaRegister of Controlled Trials (mRCT) database we identified trials funded in the United Kingdom, ongoing between 2001 and 2010, and reporting the use of qualitative research. We requested copies of proposals from lead researchers. We extracted data from the proposals using closed and open questions, analysed using descriptive statistics and content analysis respectively. 2% (89/3812) of trials in the mRCT database described the use of qualitative research undertaken with the trial. From these 89 trials, we received copies of 36 full proposals, of which 32 met our inclusion criteria. 25% used less than a single paragraph to describe the qualitative research. The aims of the qualitative research described in these proposals focused mainly on the intervention or trial conduct. Just over half (56%) of the proposals included an explicit rationale for conducting the qualitative research with the trial, the most frequent being to optimise implementation into clinical practice or to interpret trial findings. Key information about methods, expertise and resources was missing in a large minority of proposals, in particular sample size, type of analysis, and non-personnel resources. 28% specifically stated that qualitative researchers would conduct the qualitative research. Our review of proposals of successfully funded studies identified good practice but also identified limited space given to describing the qualitative research, with an associated lack of attention to the rationale for doing the qualitative research and

  16. Towards a Detailed Seismic Structure of the Valley of Mexico's Xochimilco Lake Zone.

    Science.gov (United States)

    Rabade, S.; Sanchez-Sanchez, J.; Ayala Hernandez, M.; Macias, M. A.; Aguilar Calderon, L. A.; Alcántara, L.; Almora Mata, D.; Castro Parra, G.; Delgado, R.; Leonardo Suárez, M.; Molina Avila, I.; Mora, A.; Perez-Yanez, C.; Ruiz, A. L.; Sandoval, H.; Torres Noguez, M.; Vazquez Larquet, R.; Velasco Miranda, J. M.; Aguirre, J.; Ramirez-Guzmán, L.

    2017-12-01

    Six centuries of gradual, intentional sediment filling in the Xochimilco Lake Zone have drastically reduced the size of the lake. The basin structure and the lake's clay limits and thickness are poorly constrained, and yet, essential to explain the city's anomalous ground motion. Therefore, we conducted an experiment to define the 3D velocity model of Mexico's capital; the CDMX-E3D. The initial phase involved the deployment of a moving set of 18-broadband stations with an interstation distance of 500m over a period of 19 weeks. We collected the data and analyzed the results for the Xochimilco Lake Zone using H/V Spectral Ratios (Nakamura, 1989), which provided an improved fundamental period map of the region. Results show that periods in the former lake zone have larger variability than values previously estimated. In order to obtain group velocity maps at different periods, we estimated Green's functions from ambient noise cross-correlations following standard methodologies to invert Rayleigh wave travel times (Bensen et al., 2007). Preliminary result show very low-velocity zones (100 m/s) and thick sediment layers in most of the former Xochimilco Lake area. This Project was funded by the Secretaria de Ciencia, Tecnología e Innovación (SECITI) of Mexico City. Project SECITI/073/2016.

  17. High-energy radiography. Detection of details of complex structures at great depths

    International Nuclear Information System (INIS)

    Kolkoori, Sanjeevareddy; Wrobel, Norma; Osterloh, Kurt; Redmer, Bernhard; Deresch, Andreas; Ewert, Uwe

    2013-01-01

    This study was dedicated to the nondestructive inspection of steel containers using high-energy X-ray radiation from a Betatron (2 - 7.5 MeV) and high-resolution flat detectors. Experimental work revealed that high levels of heterogeneity of the container content were associated with correspondingly noisy radiographs. This makes it difficult to discriminate materials from one another, especially in the presence of heavy metals, i.e. thick (≥ 85 mm) steel components with boreholes and complex structures. Furthermore, the influence of the thickness of the Cu prefilter on the bremsstrahlung spectrum was investigated in order to determine what would be the optimal conditions for dual-energy radiography. The radiographic inspection of containers was simulated using the aRTist software, which has been presented elsewhere. Simulated radiographs of a steel container containing various materials were compared quantitatively with the experimental results. The measured attenuation coefficients for Al, Cu and Fe were in good agreement with the simulation results.

  18. Impact of branched structures on cycloalkane ignition in a motored engine: Detailed product and conformational analyses

    KAUST Repository

    Kang, Dongil

    2015-04-01

    The ignition process of ethylcyclohexane (ECH) and its two isomers, 1,3-dimethylcyclohexane (13DMCH) and 1,2-dimethylcyclohexane (12DMCH) was investigated in a modified CFR engine. The experiment was conducted with intake air temperature of 155. °C, equivalence ratio of 0.5 and engine speed of 600. rpm. The engine compression ratio (CR) was gradually increased in a stepwise manner until autoignition occurred. It was found that ECH exhibited a significantly higher oxidation reactivity compared to its two isomers. The autoignition criterion was based on CO emissions and the apparent heat release rates. Ethylcyclohexane (ECH) indicated noticeable two stage ignition behavior, while less significant heat release occurred for the two isomers at comparable conditions. The mole fractions of unreacted fuel and stable intermediate species over a wide range of compression ratios were analyzed by GC-MS and GC-FID. Most of the species indicated constant rates of formation and the trends of relative yield to unreacted fuel are well in agreement with the oxidation reactivity in the low temperature regime. The major intermediate species are revealed as a group of conjugate olefins, which possess the same molecular structure as the original fuel compound except for the presence of a double carbon bond. Conjugate olefins were mostly formed through (1,4) H-shift isomerization during the low temperature oxidation of alkylcyclohexanes. Conformation analysis explains the reactivity differences in the three isomers as well as the fractions of intermediate species. The hydrogen availability located in alkyl substituents plays an important role in determining oxidation reactivity, requiring less activation energy for abstraction through the (1,5) H-shift isomerization. This reactivity difference contributes to building up the major intermediate species observed during oxidation of each test fuel. 12DMCH, whose ignition reactivity is the lowest, less favors β-scission of C-C backbone of

  19. 34 CFR 97.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-07-01

    ... human subjects. 97.119 Section 97.119 Education Office of the Secretary, Department of Education PROTECTION OF HUMAN SUBJECTS Federal Policy for the Protection of Human Subjects (Basic ED Policy for Protection of Human Research Subjects) § 97.119 Research undertaken without the intention of involving human...

  20. 45 CFR 46.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-10-01

    ... involving human subjects. 46.119 Section 46.119 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION PROTECTION OF HUMAN SUBJECTS Basic HHS Policy for Protection of Human Research Subjects § 46.119 Research undertaken without the intention of involving human subjects. In the event...

  1. 40 CFR 26.119 - Research undertaken without the intention of involving human subjects.

    Science.gov (United States)

    2010-07-01

    ... intention of involving human subjects. 26.119 Section 26.119 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL PROTECTION OF HUMAN SUBJECTS Basic EPA Policy for Protection of Subjects in Human... human subjects. In the event research is undertaken without the intention of involving human subjects...

  2. Coupling a distributed hydrological model with detailed forest structural information for large-scale global change impact assessment

    Science.gov (United States)

    Eisner, Stephanie; Huang, Shaochun; Majasalmi, Titta; Bright, Ryan; Astrup, Rasmus; Beldring, Stein

    2017-04-01

    Forests are recognized for their decisive effect on landscape water balance with structural forest characteristics as stand density or species composition determining energy partitioning and dominant flow paths. However, spatial and temporal variability in forest structure is often poorly represented in hydrological modeling frameworks, in particular in regional to large scale hydrological modeling and impact analysis. As a common practice, prescribed land cover classes (including different generic forest types) are linked to parameter values derived from literature, or parameters are determined by calibration. While national forest inventory (NFI) data provide comprehensive, detailed information on hydrologically relevant forest characteristics, their potential to inform hydrological simulation over larger spatial domains is rarely exploited. In this study we present a modeling framework that couples the distributed hydrological model HBV with forest structural information derived from the Norwegian NFI and multi-source remote sensing data. The modeling framework, set up for the entire of continental Norway at 1 km spatial resolution, is explicitly designed to study the combined and isolated impacts of climate change, forest management and land use change on hydrological fluxes. We use a forest classification system based on forest structure rather than biomes which allows to implicitly account for impacts of forest management on forest structural attributes. In the hydrological model, different forest classes are represented by three parameters: leaf area index (LAI), mean tree height and surface albedo. Seasonal cycles of LAI and surface albedo are dynamically simulated to make the framework applicable under climate change conditions. Based on a hindcast for the pilot regions Nord-Trøndelag and Sør-Trøndelag, we show how forest management has affected regional hydrological fluxes during the second half of the 20th century as contrasted to climate variability.

  3. Tectonic evolution of the eastern margin of the Thaumasia Plateau (Mars) as inferred from detailed structural mapping and analysis

    Science.gov (United States)

    Borraccini, F.; Di Achille, G.; Ori, G. G.; Wezel, F. C.

    2007-05-01

    The eastern margin of the Thaumasia Plateau (EMTP) is characterized by a diversity of tectonic features, which recorded its complex, and still controversial, tectonic history. A detailed structural survey and analyses have been carried out in order to assess the kinematics and relative age of the main deformational events. Combining results from statistics of lineament orientations and density of fault length for each geologic unit and taking into account crosscutting relationships among tectonic structures, three main deformational events have been recognized. The early stage of the tectonic evolution of EMTP is recorded by Noachian units at the southern edge of Melas Dorsa and is represented by N-S oriented grabens sutured by Early Hesperian formations. Starting from Late Noachian, the extensional stress field became NE-SW oriented and resulted in the formation of NW-SE striking sets of grabens. At the boundary between Noachian and Hesperian, the most important change in tectonic regime occurred. The Hesperian tectonics are characterized by an E-W shortening possibly related to an eastward motion of the Thaumasia Plateau. This tectonic phase likely produced a N-S-oriented wrinkle ridges as well as regional folds and thrust faults. E-W-oriented preexisting tectonic lineaments could have been reactivated forming regional transfer zones. In this scenario, Coprates Rise, Melas Dorsa, and Thaumasia Ridge could be interpreted as mountain belts resulting from buckling and thrust faulting of the eastern and southern margins of the Thaumasia plateau. The proto-Valles Marineris could have experienced a left-lateral component of displacement and played a role of a transfer shear zone.

  4. Charles Edward Isaacs (1811-1860): exploring the details of nephron structure and function in the post-Bowman period.

    Science.gov (United States)

    Fine, Leon G

    2003-01-01

    Charles Edward Isaacs (1811-1860), an anatomist working in New York, undertook a series of studies which attempted to define the microscopic structure of the nephrons in a variety of species. Given that he published his findings 15 years after William Bowman's seminal paper on the subject, he was able to add only a few of the finer details to the picture. He observed the continuity of the epithelium of the glomerular capsule with that of the proximal tubule and he demonstrated that the glomerular tuft is covered by a layer of epithelial cells. In a series of studies on human renal function he erroneously concluded that the glomerulus must have an excretory function in addition to its filtration function and that diuretics act primarily on the glomerlus. The latter conclusion was based upon observations of substances not currently categorized as being diuretic agents. The absence of a major conceptual advance in the writings of Isaacs probably accounts for that fact that his contribution has been largely forgotten.

  5. Report to the Fort Belknap Community Council on the work undertaken during the summer, 1979

    Energy Technology Data Exchange (ETDEWEB)

    Wehrenberg, J.P.; Ballard, J.H.; Pfouts, R.P.

    1979-01-01

    Results are presented of a gravity survey undertaken to determine the potential for oil and gas extraction on the Fort Belknap Indian Reservation. Two hundred forty-eight gravity measurements were taken and at least one major anomaly was found. Analysis of available surface and subsurface information suggests that there is a limited potential for oil but a somewhat better potential for the development of gas. Commercial development of coal is not likely, but there is at least one small coalfield that may be exploited for local use. Bentonite presents the best option for commercial development.

  6. Crump Geyser Exploration and Drilling Project. High Precision Geophysics and Detailed Structural Exploration and Slim Well Drilling

    Energy Technology Data Exchange (ETDEWEB)

    Fairbank, Brian D. [Nevada Geothermal Power Company, Vancouver (Canada); Smith, Nicole [Nevada Geothermal Power Company, Vancouver (Canada)

    2015-06-10

    The Crump Geyser Exploration and Drilling Project – High Precision Geophysics and Detailed Structural Exploration and Slim Well Drilling ran from January 29, 2010 to September 30, 2013. During Phase 1 of the project, collection of all geophysical surveys was completed as outlined in the Statement of Project Objectives. In addition, a 5000-foot full sized exploration well was drilled by Ormat, and preexisting drilling data was discovered for multiple temperature gradient wells within the project area. Three dimensional modeling and interpretation of results from the geophysical surveys and drilling data gave confidence to move to the project into Phase 2 drilling. Geological and geophysical survey interpretations combined with existing downhole temperature data provided an ideal target for the first slim-hole drilled as the first task in Phase 2. Slim-hole 35-34 was drilled in September 2011 and tested temperature, lithology, and permeability along the primary range-bounding fault zone near its intersection with buried northwest-trending faults that have been identified using geophysical methods. Following analysis of the results of the first slim-hole 35-34, the second slim hole was not drilled and subsequent project tasks, including flowing differential self-potential (FDSP) surveys that were designed to detail the affect of production and injection on water flow in the shallow aquifer, were not completed. NGP sold the Crump project to Ormat in August 2014, afterwards, there was insufficient time and interest from Ormat available to complete the project objectives. NGP was unable to continue managing the award for a project they did not own due to liability issues and Novation of the award was not a viable option due to federal award timelines. NGP submitted a request to mutually terminate the award on February 18, 2015. The results of all of the technical surveys and drilling are included in this report. Fault interpretations from surface geology, aeromag

  7. Shallow Crustal Structure in the Northern Salton Trough, California: Insights from a Detailed 3-D Velocity Model

    Science.gov (United States)

    Ajala, R.; Persaud, P.; Stock, J. M.; Fuis, G. S.; Hole, J. A.; Goldman, M.; Scheirer, D. S.

    2017-12-01

    The Coachella Valley is the northern extent of the Gulf of California-Salton Trough. It contains the southernmost segment of the San Andreas Fault (SAF) for which a magnitude 7.8 earthquake rupture was modeled to help produce earthquake planning scenarios. However, discrepancies in ground motion and travel-time estimates from the current Southern California Earthquake Center (SCEC) velocity model of the Salton Trough highlight inaccuracies in its shallow velocity structure. An improved 3-D velocity model that better defines the shallow basin structure and enables the more accurate location of earthquakes and identification of faults is therefore essential for seismic hazard studies in this area. We used recordings of 126 explosive shots from the 2011 Salton Seismic Imaging Project (SSIP) to SSIP receivers and Southern California Seismic Network (SCSN) stations. A set of 48,105 P-wave travel time picks constituted the highest-quality input to a 3-D tomographic velocity inversion. To improve the ray coverage, we added network-determined first arrivals at SCSN stations from 39,998 recently relocated local earthquakes, selected to a maximum focal depth of 10 km, to develop a detailed 3-D P-wave velocity model for the Coachella Valley with 1-km grid spacing. Our velocity model shows good resolution ( 50 rays/cubic km) down to a minimum depth of 7 km. Depth slices from the velocity model reveal several interesting features. At shallow depths ( 3 km), we observe an elongated trough of low velocity, attributed to sediments, located subparallel to and a few km SW of the SAF, and a general velocity structure that mimics the surface geology of the area. The persistence of the low-velocity sediments to 5-km depth just north of the Salton Sea suggests that the underlying basement surface, shallower to the NW, dips SE, consistent with interpretation from gravity studies (Langenheim et al., 2005). On the western side of the Coachella Valley, we detect depth-restricted regions of

  8. Author Details

    African Journals Online (AJOL)

    PROMOTING ACCESS TO AFRICAN RESEARCH. AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL · RESOURCES. Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads.

  9. Author Details

    African Journals Online (AJOL)

    Patriarchal Women's Spirituality Details · Vol 15, No 1 (2002): - Articles The suffering mothers – The Hindu Amman Goddesses as Empowering Role Models for Women Details · Vol 18, No 1 (2005): - Articles South Indian and Spanish Virgins: ...

  10. Fault zone structure and kinematics from lidar, radar, and imagery: revealing new details along the creeping San Andreas Fault

    Science.gov (United States)

    DeLong, S.; Donnellan, A.; Pickering, A.

    2017-12-01

    Aseismic fault creep, coseismic fault displacement, distributed deformation, and the relative contribution of each have important bearing on infrastructure resilience, risk reduction, and the study of earthquake physics. Furthermore, the impact of interseismic fault creep in rupture propagation scenarios, and its impact and consequently on fault segmentation and maximum earthquake magnitudes, is poorly resolved in current rupture forecast models. The creeping section of the San Andreas Fault (SAF) in Central California is an outstanding area for establishing methodology for future scientific response to damaging earthquakes and for characterizing the fine details of crustal deformation. Here, we describe how data from airborne and terrestrial laser scanning, airborne interferometric radar (UAVSAR), and optical data from satellites and UAVs can be used to characterize rates and map patterns of deformation within fault zones of varying complexity and geomorphic expression. We are evaluating laser point cloud processing, photogrammetric structure from motion, radar interferometry, sub-pixel correlation, and other techniques to characterize the relative ability of each to measure crustal deformation in two and three dimensions through time. We are collecting new and synthesizing existing data from the zone of highest interseismic creep rates along the SAF where a transition from a single main fault trace to a 1-km wide extensional stepover occurs. In the stepover region, creep measurements from alignment arrays 100 meters long across the main fault trace reveal lower rates than those in adjacent, geomorphically simpler parts of the fault. This indicates that deformation is distributed across the en echelon subsidiary faults, by creep and/or stick-slip behavior. Our objectives are to better understand how deformation is partitioned across a fault damage zone, how it is accommodated in the shallow subsurface, and to better characterize the relative amounts of fault creep

  11. Author Details

    African Journals Online (AJOL)

    Details PDF · Vol 22, No 2 (1999) - Articles Vegetation under different tree species in Acacia woodland in the Rift Valley of Ethiopia Details PDF · Vol 22, No 2 (1999) - Articles Preliminary evaluation of Phytomyza orobanchia (Diptera: Agromyzidae) as a controller of Orobanche spp in Ethiopia Details PDF. ISSN: 2520–7997.

  12. Author Details

    African Journals Online (AJOL)

    Details · Vol 1, No 1 (2003) - Articles Mesalazine: the gold standard for maintenance therapy in inflammatory bowel disease: review. Details · Vol 1, No 1 (2003) - Articles The dangers of eating away from home: review. Details · Vol 1, No 1 (2003) - Articles Infliximab (Revellex) inflammatory bowel disease: guidelines

  13. Herschel far-infrared observations of the Carina Nebula complex. III. Detailed cloud structure and feedback effects

    Science.gov (United States)

    Roccatagliata, V.; Preibisch, T.; Ratzka, T.; Gaczkowski, B.

    2013-06-01

    Context. The star formation process in large clusters/associations can be strongly influenced by the feedback from high-mass stars. Whether the resulting net effect of the feedback is predominantly negative (cloud dispersal) or positive (triggering of star formation due to cloud compression) is still an open question. Aims: The Carina Nebula complex (CNC) represents one of the most massive star-forming regions in our Galaxy. We use our Herschel far-infrared observations to study the properties of the clouds over the entire area of the CNC (with a diameter of ≈3.2°, which corresponds to ≈125 pc at a distance of 2.3 kpc). The good angular resolution (10''-36'') of the Herschel maps corresponds to physical scales of 0.1-0.4 pc, and allows us to analyze the small-scale (i.e., clump-size) structures of the clouds. Methods: The full extent of the CNC was mapped with PACS and SPIRE in the 70, 160, 250, 350, and 500 μm bands. We determined temperatures and column densities at each point in these maps by modeling the observed far-infrared spectral energy distributions. We also derived a map showing the strength of the UV radiation field. We investigated the relation between the cloud properties and the spatial distribution of the high-mass stars and computed total cloud masses for different density thresholds. Results: Our Herschel maps resolve for the first time the small-scale structure of the dense clouds over the entire spatial extent of the CNC. Several particularly interesting regions, including the prominent pillars south of η Car, are analyzed in detail. We compare the cloud masses derived from the Herschel data with previous mass estimates based on sub-mm and molecular line data. Our maps also reveal a peculiar wave-like pattern in the northern part of the Carina Nebula. Finally, we characterize two prominent cloud complexes at the periphery of our Herschel maps, which are probably molecular clouds in the Galactic background. Conclusions: We find that the

  14. International medical electives undertaken by Australian medical students: current trends and future directions.

    Science.gov (United States)

    Law, Iain R; Worley, Paul S; Langham, Freya J

    2013-04-01

    To estimate the proportion of students in Australian medical schools who undertake international medical electives (IMEs), particularly in developing countries, and to ascertain which medical schools provide predeparture training and postelective debriefing. Extraction of data on the number of students undertaking electives from the Medical Schools Outcomes Database (MSOD) for the 2013s 2006 to 2010; and interviews with the directors of each medical school in Australia in May to July 2012 to ascertain the availability of predeparture training and postelective debriefing. The proportion of medical students undertaking IMEs overall and within developing countries and the proportion of medical schools with optional and mandatory predeparture training and postelective debriefing. Fifty-three per cent of graduate-entry (GE) program students and 35% of high-school entry (HSE) program students undertook IMEs. Fifty-nine per cent of electives undertaken by GE program students were in developing countries, compared with 56% for HSE program students. Predeparture training was offered by 12 of the 16 Australian medical schools, but it was mandatory in only six. Only eight schools offer postelective debriefing. A large proportion of Australian medical students undertake IMEs in developing countries. However, a considerable proportion of students do not undertake formal preparation for, or reflection on, their experiences. Predeparture training and postelective debriefing should be scaled up across Australian medical schools to provide students with the guidance and support to maximise the benefits and minimise risks associated with undertaking IMEs in developing countries.

  15. Author Details

    African Journals Online (AJOL)

    An Overview of Africa's Marine Resources: Their Utilization and Sustainable Management Details · Vol 12, No 3 (2000) - Articles EDITORIAL Ganoderma Lucidum - Paramount among Medicinal Mushrooms. Details · Vol 15, No 3 (2003) - Articles Editorial: Africa's Mushrooms: A neglected bioresource whose time has come

  16. Author Details

    African Journals Online (AJOL)

    Tropical anaesthesia: effect on rehabilitation of spasticity in hemiplegic patients. Details · Vol 10, No 4 (2000) - Articles The effect of low intensity therapeutic ultrasound on fibroblast proliferation during the early stages of tendon healing. Details · Vol 18, No 2 (2008) - Articles Factors contributing to possession of walking aids ...

  17. Author Details

    African Journals Online (AJOL)

    Cariem, AK. Vol 1, No 2 (2003) - Articles Gastric outlet obstruction caused by drug-induced focal pancreatitis: case report. Details · Vol 2, No 2 (2004) - Articles Current management of chronic hepatitis B: review. Details. ISSN: 1812-1659. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  18. Author Details

    African Journals Online (AJOL)

    PROMOTING ACCESS TO AFRICAN RESEARCH. AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL · RESOURCES. Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. Username, Password, Remember me

  19. Author Details

    African Journals Online (AJOL)

    Details PDF · Vol 2, No 3 (2002) - Articles Oxydation Catalytique du Butane en Anhydride Maleique par les Oxides V-P. Details PDF · Vol 3, No 3 (2003) - Articles Caracterisation physico-chimique des fruits de quatre essences locales : vitex doniana sweet, vitex madiensis oliv. olax subscorpioides oliv. et ximenia americana

  20. Author Details

    African Journals Online (AJOL)

    Urga, Kelbessa. Vol 20, No 2 (1997) - Articles Co-fermentation of kocho with barley for an improved injera. Details PDF · Vol 21, No 2 (1998) - Articles Effect of fermentation by mixed cultures of lactic acid bacteria on the HCI-extractability of some minerals from tef (Eragrostis tef) atmit. Details PDF · Vol 22, No 2 (1999) - ...

  1. Author Details

    African Journals Online (AJOL)

    Localised tetanus in Lagos, Nigeria Details · Vol 9, No 4 (1999) - Articles Stroke with localised infarction of Wernicke's Area misdiagnosed as psychosis. Details · Vol 18, No 1 (2008) - Articles The effect of tens on selected symptoms in the management of patients with chronic tension type headache: A preliminary study

  2. Author Details

    African Journals Online (AJOL)

    Odihi, John Onu. Vol 10, No 1 (1998) - Articles Escavation-Water Harvesting in Sudano-Sahelian Nigeria: Problems and Prospects Details · Vol 10, No 3 (1998) - Articles Excavation Water Harvesting in Sudano-Sahelian Nigeria: Problems and Prospects Details · Vol 11, No 1 (1999) - Articles REVIEWS Land Use and ...

  3. Author Details

    African Journals Online (AJOL)

    Ngu, V Anomah. Vol 1, No 1 (2001) - Articles Effective Vaccines against and Immunotherapy of the HIV: A preliminary Report Details PDF · Vol 2, No 1 (2002) - Articles Significant reduction of HIV loads in the sera of patients treated with VANHIVAX Details PDF · AJOL African Journals Online. HOW TO USE AJOL.

  4. Author Details

    African Journals Online (AJOL)

    Book Review: Magic in the ancient world: revealing antiquity, F. Graf Details · Vol 23, No 1 (2003): - Articles Book Review: Religion als Phänomen, sozialwissenschaftliche, theologische und philosophische Erkundungen in der Lebenswelt, W.E. Failing, H-G. Heimbrock and T.A. Lotz (Eds.) Details · Vol 26, No 2 (2006): ...

  5. Author Details

    African Journals Online (AJOL)

    Evaluation of the 7 March 2000 earth tremor in Ibadan area, southwestern Nigeria Details · Vol 40, No 1 (2004) - Articles Industrial assessment of the residual clay bodies over gneisses and schists of Yaounde area, southern Cameroon Details · Vol 40, No 1 (2004) - Articles Hydrogeochemical investigation of surface water ...

  6. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to ... Tree, Anthony J. Vol 86, No 1-2 (2015) - Articles The status of the Damara Tern in the Eastern Cape, South Africa § Abstract. ISSN: 0030-6525. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for ...

  7. Author Details

    African Journals Online (AJOL)

    Journal Home > Advanced Search > Author Details. Log in or Register to get ... No 1 (1998) - Articles Investigation on canopy features of three indigenous woodland tree species of Ethiopia Details PDF · Vol 22, No 2 (1999) - Articles Vegetation under different tree species in Acacia woodland in the Rift Valley of Ethiopia

  8. Author Details

    African Journals Online (AJOL)

    A change in the breeding pattern of Aedes aegypti (Linnaeus) in domestic water receptacles during rapid urbanization period. Details · Vol 39 (1999) - Articles Environmental management for mosquito control in tropical urban areas. Details · Vol 39 (1999) - Articles Impact of rapid urbanization in Accra on the breeding ...

  9. Author Details

    African Journals Online (AJOL)

    Owusu, G.K.. Vol 3, No 2 (2001): - Articles Effects of cocoa swollen-shoot virus on the yield of mature bearing trees of upper Amazon cocoa hybrids in Ghana Details · Vol 3, No 2 (2001): - Articles An alternative source for the extraction and purification of cocoa swollen shoot badnavirus (CSSV) Details. ISSN: 0855-3823.

  10. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Abstract PDF · Vol 3, No 6 (2011) - Articles Mixed convection flow and heat transfer in a vertical wavy channel containing porous and fluid layer with traveling thermal waves. Abstract PDF · Vol 3, No 8 ...

  11. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Singh, J. Vol 3, No 2 (2011) - Articles Plane waves in a rotating generalized thermo-elastic solid with voids. Abstract PDF. ISSN: 2141-2839. AJOL African Journals Online. HOW TO USE AJOL.

  12. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Vol 12 (2008) - Articles On the wave equations of shallow water with rough bottom topography. Abstract · Vol 14 (2009) - Articles Energy generation in a plant due to variable sunlight intensity

  13. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Iliopsoas haematoma in a rugby player. Abstract PDF · Vol 29, No 1 (2017) - Articles The use of negative pressure wave treatment in athlete recovery. Abstract PDF. ISSN: 2078-516X. AJOL African ...

  14. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Ismail, A. Vol 9, No 3S (2017): Special Issue - Articles Investigate of wave absorption performance for oil palm frond and empty fruit bunch at 5.8 GHz. Abstract PDF · Vol 9, No 3S (2017): Special Issue ...

  15. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Duwa, S S. Vol 8 (2004) - Articles Lower hybrid waves instability in a velocity–sheared inhomogenous charged dust beam. Abstract · Vol 9 (2005) - Articles The slide away theory of lower hybrid bursts

  16. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Vol 45 (2016) - Articles From vectors to waves and streams: An alternative approach to semantic maps1. Abstract PDF · Vol 48 (2017) - Articles Introduction: 'n Klein ietsie for Johan Oosthuizen

  17. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... The use of negative pressure wave treatment in athlete recovery. Abstract PDF · Vol 29, No 1 (2017) - Articles The prevalence, risk factors predicting injury and the severity of injuries sustained during ...

  18. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Vol 29, No 1 (2017) - Articles The use of negative pressure wave treatment in athlete recovery. Abstract PDF · Vol 29, No 1 (2017) - Articles The prevalence, risk factors predicting injury and the ...

  19. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Uptake of intermittent preventive therapy in pregnancy for malaria in Zimbabwe 2013-2015 Audit Abstract. ISSN: 0008-9176. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for ...

  20. Author Details

    African Journals Online (AJOL)

    Author Details. Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Regional Anaesthetic Blocks For Hand Surgery In Resource Limited Areas Abstract PDF · Vol 9 (2012) - Articles Audit of prophylactic antibiotic use in orthopaedic surgery in Mulago Hospital

  1. Author Details

    African Journals Online (AJOL)

    Garisch, J. Vol 1, No 1 (2003) - Articles Infliximab (Revellex) inflammatory bowel disease: guidelines. Details · Vol 1, No 2 (2003) - Articles Reflux disease: pathways to the best care: guidelines. Details. ISSN: 1812-1659. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's ...

  2. An economic analysis of a major bio-fuel program undertaken by OECD countries

    International Nuclear Information System (INIS)

    2002-01-01

    Biofuels such as ethanol and bio-diesel are creating a new demand for agricultural output and for agriculture land in Canada. However, the participation of other large countries with a large demand potential is necessary for bio-fuels to have a significant impact on the price of grains and oilseeds. This paper quantified the potential impact that a major bio-fuel program initiated by OECD countries has on grain and oilseed prices. The program was initiated for the period 1999 to 2006. There is considerable interest by Canadian producers to stimulate grain and oilseed prices by increasing demand of biofuels. This renewable energy source produces fewer greenhouse gas emissions than petroleum products. The analysis presented in this paper only considered ethanol from corn or wheat and bio-diesel from vegetable oils. It also focused only on the use of bio-fuels in the OECD transportation sector. The analysis was undertaken with AGLINK, a multi-commodity multi-country policy-specific dynamic model of the international agricultural markets built by the OECD with member countries. It was shown that the increase in world and domestic prices for grains and vegetable oils will remain strong, particularly toward 2006. It was also shown that a major bio-fuel program for all OECD countries would be beneficial to Canadian agriculture. It was concluded that ultimately, an increase in OECD bio-fuels usage has a direct impact on the demand for grains and oilseeds which are important feed-stocks in biofuel production. The analysis presumes an increase in renewable fuel use, but does not consider factors such as financial incentives and regulatory requirements that could bring about this increase. 7 refs., 6 tabs., 4 figs

  3. Author Details

    African Journals Online (AJOL)

    chimique des fruits de quatre essences locales : vitex doniana sweet, vitex madiensis oliv. olax subscorpioides oliv. et ximenia americana. Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  4. Monitoring and evaluation of disaster response efforts undertaken by local health departments: a rapid realist review.

    Science.gov (United States)

    Gossip, Kate; Gouda, Hebe; Lee, Yong Yi; Firth, Sonja; Bermejo, Raoul; Zeck, Willibald; Jimenez Soto, Eliana

    2017-06-29

    Local health departments are often at the forefront of a disaster response, attending to the immediate trauma inflicted by the disaster and also the long term health consequences. As the frequency and severity of disasters are projected to rise, monitoring and evaluation (M&E) efforts are critical to help local health departments consolidate past experiences and improve future response efforts. Local health departments often conduct M&E work post disaster, however, many of these efforts fail to improve response procedures. We undertook a rapid realist review (RRR) to examine why M&E efforts undertaken by local health departments do not always result in improved disaster response efforts. We aimed to complement existing frameworks by focusing on the most basic and pragmatic steps of a M&E cycle targeted towards continuous system improvements. For these purposes, we developed a theoretical framework that draws on the quality improvement literature to 'frame' the steps in the M&E cycle. This framework encompassed a M&E cycle involving three stages (i.e., document and assess, disseminate and implement) that must be sequentially completed to learn from past experiences and improve future disaster response efforts. We used this framework to guide our examination of the literature and to identify any context-mechanism-outcome (CMO) configurations which describe how M&E may be constrained or enabled at each stage of the M&E cycle. This RRR found a number of explanatory CMO configurations that provide valuable insights into some of the considerations that should be made when using M&E to improve future disaster response efforts. Firstly, to support the accurate documentation and assessment of a disaster response, local health departments should consider how they can: establish a culture of learning within health departments; use embedded training methods; or facilitate external partnerships. Secondly, to enhance the widespread dissemination of lessons learned and facilitate

  5. Assessing exposure to 3-MCPD from bakery products based on monitoring studies undertaken throughout Poland.

    Science.gov (United States)

    Starski, Andrzej; Jedra, Małgorzata; Gawarska, Halina; Postupolski, Jacek

    2013-01-01

    The compound 3-monochloropropano-1,2-diol, (3-MCPD) is a contaminant found in foodstuffs that arises during food processing and storage. Conditions condusive to the former are low pH and a high temperature and it can also be formed during manufacturing, ie. food processing. Those favouring the latter are dampness, raised temperatures, packaging conditions and storage duration. For the first time, high levels of 3-MCPD have been reported in soy sauces and hydrolysate products of vegetable protein manufactured through using acid hydrolysis. Animal studies on rats and mice have found that 3-MCPD is a carcinogen, however it is not genotoxic. To determine 3-MCPD levels in bakery products currently on the market and to estimate the resulting exposure to the those consumer groups most vulnerable. Results from a two year assessment of this contaminant are so presented. Concentrations of 3-MCPD were measured in 244 samples of bakery foodstuff products found on the market which included; sponge cake, biscuits, cakes, crackers, breadsticks and rusks. Sampling was undertaken by the State Sanitary Inspectorate and analyses were performed by an accredited Gas Chromatography Mass Spectrometry (GC/MS) method. The exposure was assessed by comparing the accepted Tolerable Daily Intake (TDI) for 3-MCPD with the different conditions it occurred in, the consumption of 3-MCPD in the aforementioned foodstuffs and the various consumer groups. Levels of 3-MCPD that exceeded the limits of quantification in the studied foodstuffs were found in 91 out of 244 samples, (ie. 37.3%). These samples included 11 sponge cakes (11.3%), 27 biscuits (55.2%), 10 crackers (8.33%), 17 breadsticks (8.93%), 21 rusks (63.6%) and 5 cakes (3.13%). The highest numbers of samples containing more than 10 (> or = 10) microg/ kg of 3-MCPD were successively found in the following; breadsticks (79%), biscuits (75%), rusks (33%), crackers (33%), cakes (31%), biscuits (24%) and sponge cakes (4%). In 60 samples (24

  6. Author Details

    African Journals Online (AJOL)

    Libouga, David Gabriel. Vol 1, No 1 (2001) - Articles Etudes du lait de Zebu (Bos Indicus) obtenu à Ngaoundéré (Adamaoua, Nord Cameroun Details PDF · Vol 2, No 2 (2002) - Articles Extrait des ecorces de l'ongokea gore: protéolysé et conservation. Details PDF · Vol 3, No 3 (2003) - Articles Quelques caractéristiques ...

  7. Importance of renal abnormalities first identified in the third trimester after normal findings on a detailed second-trimester structural fetal survey.

    Science.gov (United States)

    Shipp, Thomas D; Nguyen, Hiep T; Bromley, Bryann; Lyons, Jennifer G; Benacerraf, Beryl R

    2011-11-01

    The purpose of this study was to evaluate the importance of renal abnormalities first identified in the third trimester of pregnancy after normal findings on a detailed second-trimester structural fetal survey. Between March 1, 2007, and August 1, 2009, all patients having a sonographic examination in the third trimester who previously had normal findings on a second-trimester detailed structural fetal survey were retrospectively identified. Fetal renal abnormalities first detected in the third trimester and not seen during the second-trimester survey were tabulated. Neonatal follow-up was obtained for those with sonographic abnormalities. Overall, 4170 patients had third-trimester scans after normal findings on a detailed second-trimester survey. A new renal abnormality was detected in 77 (1.8%) of these third-trimester scans. Detailed postnatal imaging follow-up was available in 49 of 77 (63.6%), of which 44 (89.8%) had prenatal hydronephosis. Of these, 9 of 44 (20.5%) had reflux; 14 of 44 (31.8%) had normal findings or had hydronephosis that resolved on follow-up sonography after birth; and the rest had hydronephosis (13 of 44 [29.5%]), ureterovesical junction obstruction (3 of 44 [6.8%]), or ureteropelvic junction obstruction (5 of 44 [11.4%]). The other 5 fetuses with nonhydronephrotic renal abnormalities had pelvic kidneys (3) and unilateral renal agenesis (2). Two of those with reflux (22.2%) required surgery, and 1 of those with ureterovesical junction obstruction (33.3%) required surgery. Most renal abnormalities first identified in the third trimester after normal findings on a detailed second-trimester structural fetal survey were hydronephrosis, of which approximately one-third resolved after birth. Among the remaining neonates with persistent hydronephrosis, almost one-third had reflux that was not detected on the second-trimester anatomy scan.

  8. Ecosystem studies in the Indian Ocean sector of the Southern Ocean undertaken by the training vessel Umitaka-maru

    Science.gov (United States)

    Moteki, Masato; Odate, Tsuneo; Hosie, Graham W.; Takahashi, Kunio T.; Swadling, Kerrie M.; Tanimura, Atsushi

    2017-06-01

    This special issue provides an overview of the ten voyages undertaken by the Umitaka-maru from the austral summers of 2002/2003 to 2014/2015 to promote the next phase of study of the ecosystems in the Indian Ocean sector of the Southern Ocean. The voyages by the Umitaka-maru have mainly targeted three areas in the Indian Ocean sector: off Dumont d'Urville Base (France, 140°E transect), off Casey Station (Australia, 110°E transect), and off Syowa Station (Japan, north of Lützow Holm Bay). The findings of Umitaka-maru's research on the krill-independent food web, animal assemblages, community structure and distribution patterns from the epipelagic to the deeper waters provide invaluable information for elucidating the material cycle and predicting future ecosystem changes. Further studies on assessing the influence of sea ice on food webs in the water column are required, which will provide crucial information for predicting ecosystem changes as a result of projected sea ice changes in the near future.

  9. Renewal of the operating license. Activities, uncertainties and challenges to be undertaken by Asco NPP

    International Nuclear Information System (INIS)

    Diez, R. I.; Gonzalez Ayestaran, P.

    2015-01-01

    The management plan of life aims to analyze and manage properly, the effects of time and the operation in the structures, systems and / or components considered within its scope, so that the functions defined remain at their bases leave during their service life. (Author)

  10. Predicted 3D structures of olfactory receptors with details of odorant binding to OR1G1

    Science.gov (United States)

    Kim, Soo-Kyung; Goddard, William A.

    2014-12-01

    Olfactory receptors (ORs) are responsible for mediating the sense of smell; they allow humans to recognize an enormous number of odors but the connection between binding and perception is not known. We predict the ensemble of low energy structures for the human OR1G1 (hOR1G1) and also for six other diverse ORs, using the G protein-coupled receptor Ensemble of Structures in Membrane BiLayer Environment complete sampling method that samples 13 trillion different rotations and tilts using four different templates to predict the 24 structures likely to be important in binding and activation. Our predicted most stable structures of hOR1G1 have a salt-bridge between the conserved D3.49 and K6.30 in the D(E)RY region, that we expect to be associated with an inactive form. The hOR1G1 structure also has specific interaction in transmembrane domains (TMD) 3-6 (E3.39 and H6.40), which is likely an important conformational feature for all hORs because of the 94 to 98 % conservation among all hOR sequences. Of the five ligands studied (nonanal, 9-decen-1-ol, 1-nonanol, camphor, and n-butanal), we find that the 4 expected to bind lead to similar binding energies with nonanol the strongest.

  11. Implications of Model Structure and Detail for Utility Planning: Scenario Case Studies Using the Resource Planning Model

    Energy Technology Data Exchange (ETDEWEB)

    Mai, Trieu [National Renewable Energy Lab. (NREL), Golden, CO (United States); Barrows, Clayton [National Renewable Energy Lab. (NREL), Golden, CO (United States); Lopez, Anthony [National Renewable Energy Lab. (NREL), Golden, CO (United States); Hale, Elaine [National Renewable Energy Lab. (NREL), Golden, CO (United States); Dyson, Mark [National Renewable Energy Lab. (NREL), Golden, CO (United States); Eurek, Kelly [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2015-04-01

    In this report, we analyze the impacts of model configuration and detail in capacity expansion models, computational tools used by utility planners looking to find the least cost option for planning the system and by researchers or policy makers attempting to understand the effects of various policy implementations. The present analysis focuses on the importance of model configurations — particularly those related to capacity credit, dispatch modeling, and transmission modeling — to the construction of scenario futures. Our analysis is primarily directed toward advanced tools used for utility planning and is focused on those impacts that are most relevant to decisions with respect to future renewable capacity deployment. To serve this purpose, we develop and employ the NREL Resource Planning Model to conduct a case study analysis that explores 12 separate capacity expansion scenarios of the Western Interconnection through 2030.

  12. Author Details

    African Journals Online (AJOL)

    Ashour, MM. Vol 12, No 4 (2000) - Articles ROLE OF DIAGNOSTIC LAPAROSCOPY IN OBSCURE ASCITES Details. ISSN: 1110-5607. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

  13. Author Details

    African Journals Online (AJOL)

    Masoud, M. Vol 12, No 4 (2000) - Articles ROLE OF DIAGNOSTIC LAPAROSCOPY IN OBSCURE ASCITES Details. ISSN: 1110-5607. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

  14. Author Details

    African Journals Online (AJOL)

    RIZZO, R. Vol 7, No 2 (2001) - Articles Variental differences AND polymorphism in palm oil: a case study of palm oils blended with coconut oil. Details. ISSN: 1118-0579. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  15. Author Details

    African Journals Online (AJOL)

    UZOKA, FME. Vol 3, No 2 (2003) - Articles User's perception of Windows operating systems: A comparative analysis. Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

  16. Author Details

    African Journals Online (AJOL)

    Aboul-fotouh, Aisha M. Vol 12, No 3 (2000) - Articles INVESTIGATION OF AN OUTBREAK OF NOSOCOMIAL PNEUMONIA IN INTENSIVE CARE UNIT Details. ISSN: 1110-5607. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  17. Author Details

    African Journals Online (AJOL)

    Aiyegbusi, AI. Vol 10, No 4 (2000) - Articles The effect of low intensity therapeutic ultrasound on fibroblast proliferation during the early stages of tendon healing. Details. ISSN: 0189-2657. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  18. Author Details

    African Journals Online (AJOL)

    Book Review: Dorothy L. Hodgson and Sheryl A. McCurdy (eds.). 'Wicked' Women and the Reconfiguration of Gender in Africa. Portsmouth. Heinemann. 2001. Details · Vol 6, No 2 (2002) - Articles Book Reviews Aili Mari Tripp. Women and Politics in Uganda. Madison. The University of Wisconsin. 2000. Xxvii + 277 pp.

  19. Author Details

    African Journals Online (AJOL)

    Frost, P. Vol 73 (1999) - Articles Interdisciplinary Challenges for Environmental Researchers in Rural Farming Systems Details. ISSN: 0254-2765. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  20. Author Details

    African Journals Online (AJOL)

    Admasu, Assefa. Vol 22, No 2 (1999) - Articles Preliminary evaluation of Phytomyza orobanchia (Diptera: Agromyzidae) as a controller of Orobanche spp in Ethiopia Details PDF. ISSN: 2520–7997. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

  1. Author Details

    African Journals Online (AJOL)

    Nzongola-Ntalaja, Georges. Vol 1999, No 3-4 (1999) - Articles The Congo Holocaust and the Rwanda Genocide Details. ISSN: 0850-8712. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

  2. Author Details

    African Journals Online (AJOL)

    Amanor, Kojo Sebastian. Vol 17, No 1 (2001) - Articles Empowering Women through Tree Planting? Gender and Global Environmentalism in Northern Ghana. Details. ISSN: 0855-4412. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  3. Author Details

    African Journals Online (AJOL)

    Clasquin, Michel. Vol 17, No 1 (2004): - Articles Ixopo: The Evolution of a South African Buddhist Centre Details. ISSN: 1011-7601. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

  4. Author Details

    African Journals Online (AJOL)

    Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives. ONIBERE, EA. Vol 3, No 2 (2003) - Articles The effect of language on human-computer interactions in Cameroon Details PDF.

  5. Author Details

    African Journals Online (AJOL)

    Ngo Bum, Elisabeth. Vol 2, No 2 (2002) - Articles Effect of the decoction of rhizomes of Cyperus articulatus on bicuculline-, N-methyl-D-aspartate- and strychnine-induced behavioural excitation and convulsions in mice. Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  6. Author Details

    African Journals Online (AJOL)

    Abegaz, Berhanu M. Vol 21, No 2 (1998) - Articles The essential oils of Coriandrum sativum L. grown in Ethiopia. Details PDF. ISSN: 0379-2897. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  7. Author Details

    African Journals Online (AJOL)

    Abila, R.O.. Vol 10, No 1 (2001) - Articles The role of women in artisanal fish processing and trading on Lake Victoria (Kenya Details. ISSN: 0002-0036. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  8. Author Details

    African Journals Online (AJOL)

    Youmssi, A. Vol 1, No 1 (2001) - Articles Analytical Study of Permanent Magnet Cylindrical Synchronous Machines fed by Rectangular or Sinusoidal Currents Details · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  9. Author Details

    African Journals Online (AJOL)

    Akum, ZE. Vol 1, No 3 (2001) - Articles Basic home range characteristics for the conservation of the African grey parrot in the Korup national park, Cameroon Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

  10. Author Details

    African Journals Online (AJOL)

    On-farm introduction of some dry season feeding strategies to cattle farmers on the Accra Plains of Ghana and the response of cattle to these strategies. 1. A survey on reasons for non-adoption of strategies. Details · Vol 35, No 1 (2002) - Articles On-farm introduction of some dry season feeding strategies to cattle farmers on ...

  11. Author Details

    African Journals Online (AJOL)

    Michael, Cheyl Ann. Vol 3, No 2 (1999) - Articles Re-imagining South African Cultural Studies Details PDF. ISSN: 1027-4332. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News.

  12. Author Details

    African Journals Online (AJOL)

    Michael, Cheryl-Ann. Vol 1999, No 1-2 (1999) - Articles Imagining Futures: Identity and Nation in South African Autobiography Details. ISSN: 0850-8712. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

  13. Author Details

    African Journals Online (AJOL)

    de Beer, Arnold S. Vol 15, No 1 (2001): Media Freedom and Human Rights - Articles The Internet in Africa - A New Road to Developmental Opportunities or a Digital Highway leading to Nowhere? Details. ISSN: 0256-004. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  14. Author Details

    African Journals Online (AJOL)

    Chimombo, Steve. Vol 15 (2001) - Articles Book Review: Revisiting Ancestral Wisdom: A review of J.C. Chakanza's Wisdom of the people. Details PDF · Vol 2, No 1 (1988) - Articles Opinion: The Trickster and the Saint Abstract PDF · Vol 3, No 1 (1989) - Articles 'Shreds and tatters': Lipenga's short stories. Abstract PDF · Vol ...

  15. Author Details

    African Journals Online (AJOL)

    Amedofu, GK. Vol 31, No 1 (1991) - Articles Patterns of pre-school hearing impairment among kindergarten school children in Kumasi District, Ghana. Details. ISSN: 0855-1448. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  16. Author Details

    African Journals Online (AJOL)

    Gudefin, EJ. Vol 1, No 1 (2001) - Articles Analytical Study of Permanent Magnet Cylindrical Synchronous Machines fed by Rectangular or Sinusoidal Currents Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

  17. Author Details

    African Journals Online (AJOL)

    Bos Indicus) obtenu à Ngaoundéré (Adamaoua, Nord Cameroun Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  18. Author Details

    African Journals Online (AJOL)

    Ocholla-Ayayo, ABC. Vol 7, No 1 (2000) - Articles The African family in development crisis in the second millennium. Details PDF. ISSN: 1024-0969. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  19. Author Details

    African Journals Online (AJOL)

    Nia, R. Vol 3, No 3 (2003) - Articles A potential natural environmental-friendly insecticide Citrus sinensis vs Citrus aurantium. Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

  20. Author Details

    African Journals Online (AJOL)

    Atimomo, CE. Vol 9, No 1 (1999) - Articles Prognostic Factors Of Typhoid Perforation in Lagos Abstract · Vol 9, No 4 (1999) - Articles An open study of the safety and efficacy of ranitidine Bismuth citrate in the treatment of patients with Helicobacter Pylori-associated duodenal ulcer. Details. ISSN: 0189-2657. AJOL African ...

  1. Author Details

    African Journals Online (AJOL)

    Arigbabu, AO. Vol 9, No 4 (1999) - Articles An open study of the safety and efficacy of ranitidine Bismuth citrate in the treatment of patients with Helicobacter Pylori-associated duodenal ulcer. Details. ISSN: 0189-2657. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's ...

  2. Author Details

    African Journals Online (AJOL)

    Njubi, Francis. Vol 15, No 1 (2001): Media Freedom and Human Rights - Articles New Media, Old Struggles: Pan Africanism, Anti-racism and Information Technology Details. ISSN: 0256-004. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  3. Author Details

    African Journals Online (AJOL)

    Ligthelm, A.A.. Vol 5, No 2 (2001) - Articles Community attitudes towards Casinos and the estimated magnitude of problem gambling The Mpumalanga case. Details PDF. ISSN: 1027-4332. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  4. Author Details

    African Journals Online (AJOL)

    Mulinge, Munyae. Vol 5, No 2 (2001) - Articles Justice perceptions in the workplace: Gender differences in Kenya Details PDF. ISSN: 1027-4332. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  5. Author Details

    African Journals Online (AJOL)

    Egypt: Pharoahs and Fundamentalists? Abstract · Vol 31, No 3 (2001) - Articles The challenges of state collapse in Africa: The case of the Democratic Republic of Congo Details · Vol 31, No 4 (2001) - Articles Illegal immigration into South Africa Abstract. ISSN: 1995-641X. AJOL African Journals Online. HOW TO USE AJOL.

  6. Author Details

    African Journals Online (AJOL)

    Rakotonirina, Alice. Vol 2, No 2 (2002) - Articles Effect of the decoction of rhizomes of Cyperus articulatus on bicuculline-, N-methyl-D-aspartate- and strychnine-induced behavioural excitation and convulsions in mice. Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  7. Author Details

    African Journals Online (AJOL)

    DAVID-OKU, E. Vol 6, No 1 (2000) - Articles Theobromine administration inhibits platelet aggregation and elevates serum HDL - cholesterol in hyperlipidemic wistar rats. Details. ISSN: 1118-0579. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

  8. Author Details

    African Journals Online (AJOL)

    MENSAH, JK. Vol 3, No 2 (2003) - Articles Democratic Evolution in Africa in An Era of Globalization Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER ...

  9. Author Details

    African Journals Online (AJOL)

    McCarthy, Greg. Vol 15, No 1 (2001): Media Freedom and Human Rights - Articles Caught between Empires: Ambivalence in Australian Films Details. ISSN: 0256-004. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  10. Author Details

    African Journals Online (AJOL)

    Ayodele, IA. Vol 1, No 3 (2001) - Articles Basic home range characteristics for the conservation of the African grey parrot in the Korup national park, Cameroon Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

  11. Author Details

    African Journals Online (AJOL)

    Chanunkha, Robert. Vol 16 (2002) - Articles Music education in Malawi Details PDF · Vol 21, No 1 (2008) - Articles Malawian ethnic music: Concepts of hand clapping, foot stamping and relaxation. Abstract PDF. ISSN: 1016-0728. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  12. Author Details

    African Journals Online (AJOL)

    Umebese, P.F.A.. Vol 4, No 1 (2001) - Articles Motorcycle accidents in a Nigerian University campus. A one year study of the pattern of Trauma sustained in the University of Benin campus. Details PDF. ISSN: 1119-3077. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  13. Author Details

    African Journals Online (AJOL)

    Pongweni, Alex. Vol 14, No 2 (2000): Ethnicity and Identity - Articles BOOK REVIEW ESSAY: 'Voicing the text': South African oral Poetry and Performance Details. ISSN: 0256-004. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  14. Author Details

    African Journals Online (AJOL)

    Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... No 4S (2017): Special Issue - Articles Architectural design of experience based factory model for software development process in cloud computing: integration with workflow and multi-agent system. Abstract PDF.

  15. Author Details

    African Journals Online (AJOL)

    Lung function status of some Nigerian men and women chronically exposed to fish drying using burning firewood ... Risk awareness of HIV/AIDS amongh commercial farm workers in Zimbabwe ... Prevalence of HIV/AIDS and psychiatric disorders and their related risk factors among adults in Epworth, Zimbabwe Details PDF ...

  16. Author Details

    African Journals Online (AJOL)

    NWINUKA, NWIBANI M. Vol 7, No 3 (2001) - Articles Physicochemical characterization of breadnut (Artocarpus) seed oil. Details. ISSN: 1118-0579. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  17. Author Details

    African Journals Online (AJOL)

    Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Can, G. Vol 15, No 3 (2015) - Articles Chronic hepatitis B associated with hepatic steatosis, insulin resistance, necroinflammation and fibrosis. Abstract PDF. ISSN: 1680-6905. AJOL African Journals Online. HOW TO ...

  18. Author Details

    African Journals Online (AJOL)

    Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Can, A. Vol 40, No 3 (2010) - Articles Frozen rumen fluid as microbial inoculum in the two-stage in vitro digestibility assay of ruminant feeds. Abstract PDF. ISSN: 2221-4062. AJOL African Journals Online. HOW TO ...

  19. Author Details

    African Journals Online (AJOL)

    Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Can, M. Vol 40, No 3 (2010) - Articles Effects of dietary boron on performance, egg production, egg quality and some bone parameters in layer hens. Abstract PDF. ISSN: 2221-4062. AJOL African Journals Online.

  20. Author Details

    African Journals Online (AJOL)

    AKPABIO, G. F.. Vol 7, No 3 (2001) - Articles Locally available materials for use as flat plate solar absorber. Details PDF. ISSN: 1118-0579. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

  1. Author Details

    African Journals Online (AJOL)

    LEKE, Rose G.F.. Vol 2 (2002): Supplement - Articles Prevalence of Multiple Concomitant Intestinal Parasitic Infections in Simbok a Malaria Endemic Village in Cameroon. Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  2. Author Details

    African Journals Online (AJOL)

    Omoluabi, PF. Vol 11, No 3 (2003) - Articles 10Cs of Psychotrauma in Refugees Details · Vol 16 (2008): Special Issue - Xenophobia - Articles Psychological Foundation Of Xenophobia Abstract · Vol 17, No 1 (2009) - Articles Validation Of Maslach Burnout Inventory Abstract. ISSN: 1117-1421. AJOL African Journals Online.

  3. Author Details

    African Journals Online (AJOL)

    Ibeabuchi, NM. Vol 10, No 3 (2000) - Articles Comparison of the effects of Methylsalicylate Cream with cryotherapy on delayed onset muscle soreness. Details · Vol 22, No 2 (2012) - Articles X-ray Pelvimetry And Labour Outcome In Term Pregnancy In A Rural Nigerian Population Abstract. ISSN: 0189-2657. AJOL African ...

  4. Author Details

    African Journals Online (AJOL)

    Kumbungu District of Northern Region of Ghana - Research and Development Notes Details · Vol 41, No 1 (2008) - Articles Technological changes in shea butter production in Ghana: A case study of shea butter production in the Yendi District of ...

  5. Author Details

    African Journals Online (AJOL)

    Boudjemai, A. Vol 14 (2002) - Articles Thermal behavior using analytical and numerical model in multi-finger power heterojuction Bipolar transistors. Details. ISSN: 1111-0902. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  6. Author Details

    African Journals Online (AJOL)

    Rabah, Kefa V O. Vol 9, No 1 (1997) - Articles REVIEW A Study of a New Power Semiconductor Insulated Gate Bipolar Transistor (IGBT) Characteristics and its Application to Automotive Ignition Details. ISSN: 1015-079X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  7. Author Details

    African Journals Online (AJOL)

    Tapondjou, LA. Vol 3, No 3 (2003) - Articles Effet des huiles essentielles des feuilles et des extrémités fleuries de Cupressus lusitanica sur la Tique Rhipicephalus lunulatus à L'ouest-Cameroun Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

  8. Author Details

    African Journals Online (AJOL)

    Effet des huiles essentielles des feuilles et des extrémités fleuries de Cupressus lusitanica sur la Tique Rhipicephalus lunulatus à L'ouest-Cameroun Details PDF · Vol 4, No 3 (2004) - Articles Potentiel de germination de Moringa oleifera Lam. Sous différents traitements à Dshang dans les Hautes terres de l\\'Ouest- ...

  9. Author Details

    African Journals Online (AJOL)

    EKPA, O. D.. Vol 7, No 2 (2001) - Articles Variental differences AND polymorphism in palm oil: a case study of palm oils blended with coconut oil. Details PDF. ISSN: 1118-0579. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  10. Author Details

    African Journals Online (AJOL)

    Simone, Abdou Maliq. Vol 3, No 2 (1999) - Articles Thinking about African Urban Management in an Era of Globalisation Details PDF. ISSN: 1027-4332. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

  11. Author Details

    African Journals Online (AJOL)

    Kamali, Y. Vol 4, No 2 (2014) - Articles A detailed systematic anatomical study of monocephalic conjoined symmetric twin lambs. Abstract PDF. ISSN: 2218-6050. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  12. Author Details

    African Journals Online (AJOL)

    Agyei-Afriyie, F. Vol 31 (1991): Special Food and Agriculture Edition - Articles Relationship between permethrin susceptiblity and elevated esterase in clones of cotton aphid (Homoptera:Aphididae) Details. ISSN: 0855-1448. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  13. Author Details

    African Journals Online (AJOL)

    Relationship between permethrin susceptiblity and elevated esterase in clones of cotton aphid (Homoptera:Aphididae) Details · Vol 39 (1999) - Articles Studies on some esterases of Coccinella septempunctata Brukii (Coleoptera: Coccinellidae) with varying degrees of insecticide tolerance, and implications for integrated ...

  14. Author Details

    African Journals Online (AJOL)

    BEFIDI, Rosa M. Vol 2 (2002): Supplement - Articles Prevalence of Multiple Concomitant Intestinal Parasitic Infections in Simbok a Malaria Endemic Village in Cameroon. Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  15. Author Details

    African Journals Online (AJOL)

    Mthatiwa, Dale Sy. Vol 17 (2003) - Articles Book Review: Leveling the Ground in Chichewa Literature: Francis Moto's Trends in Malawian Literature Details PDF. ISSN: 1016-0728. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  16. Author Details

    African Journals Online (AJOL)

    Vol 2, No 1 (2004) - Articles The South African Gastroenterology Review. Message from Prof J.E.J. Krige: SAGES President: from the president. Details · Vol 2, No 2 (2004) - Articles Variceal recurrence, rebleeding and survival after injection sclerotherapy in 306 alcoholic cirrhotic patients with bleeding oesophageal varices: ...

  17. Author Details

    African Journals Online (AJOL)

    SAMA, G. Vol 2 (2002): Supplement - Articles A Longitudinal Study of the Role of T Cell subset, Th1/Th2 cytokines and antiplasmodial antibodies in uncomplicated Malaria in a Village Population Chronically Exposed to Plasmodium falciparum Malaria. Details PDF · AJOL African Journals Online. HOW TO USE AJOL.

  18. Author Details

    African Journals Online (AJOL)

    QUAKYI, A.I.. Vol 2 (2002): Supplement - Articles A Longitudinal Study of the Role of T Cell subset, Th1/Th2 cytokines and antiplasmodial antibodies in uncomplicated Malaria in a Village Population Chronically Exposed to Plasmodium falciparum Malaria. Details PDF · AJOL African Journals Online. HOW TO USE AJOL.

  19. Author Details

    African Journals Online (AJOL)

    KOUONTCHOU, Samuel. Vol 2 (2002): Supplement - Articles Prevalence of Multiple Concomitant Intestinal Parasitic Infections in Simbok a Malaria Endemic Village in Cameroon. Details PDF · Vol 2 (2002): Supplement - Articles A Longitudinal Study of the Role of T Cell subset, Th1/Th2 cytokines and antiplasmodial ...

  20. Author Details

    African Journals Online (AJOL)

    ALAKE, J. Vol 2 (2002): Supplement - Articles A Longitudinal Study of the Role of T Cell subset, Th1/Th2 cytokines and antiplasmodial antibodies in uncomplicated Malaria in a Village Population Chronically Exposed to Plasmodium falciparum Malaria. Details PDF · AJOL African Journals Online. HOW TO USE AJOL.

  1. Author Details

    African Journals Online (AJOL)

    Booth, Wayne C. Vol 14, No 1 (2001): Religion: Rhetoric and Politics - Articles Can Rhetorology Yield a Truce Between Science and Religion? Details. ISSN: 1011-7601. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  2. Author Details

    African Journals Online (AJOL)

    Mekasha, Amha. Vol 4, No 1 (2002) - Articles Pertussis: review article. Details. ISSN: 1560-1560. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER RESOURCES.

  3. Author Details

    African Journals Online (AJOL)

    Bobcokono, Irene Yatabene. Vol 1, No 1 (2001) - Articles Utilisation du papier filtre dans la gestion de programme de lute contre le SIDA au Cameroun Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  4. Author Details

    African Journals Online (AJOL)

    Growth and nutrient uptake of some cocoa varieties grown on contrasting soils. Details · Vol 36, No 1 (2003) - Articles Intercropping robusta coffee with some edible crops in Ghana: Agronomic performance and economic returns. Abstract · Vol 40, No 2 (2008) - Articles Effect of weed control methods on some soil properties ...

  5. Author Details

    African Journals Online (AJOL)

    Radwan M.D, Mona Ahmed. Vol 12, No 1 (2000) - Articles RELAPSING REMITTING MULTIPLE SCLEROSIS: CT AND MRI IMAGING VS CLINICAL FINDINGIN THE DIAGNOSIS AND DETERMINATION OF DISEASE ACTIVITY. Details. ISSN: 1110-5607. AJOL African Journals Online. HOW TO USE AJOL... for Researchers ...

  6. Author Details

    African Journals Online (AJOL)

    Magbagbeola, OA. Vol 9, No 4 (1999) - Articles Serum Xanthine Oxidase activity in normotensive and hypertensive Nigerian pregnant women. Details · Vol 10, No 1 (2000) - Articles Antifertility effect of extracts of Musanga cecropioidis budsheath on the femal rat. Abstract. ISSN: 0189-2657. AJOL African Journals Online.

  7. Author Details

    African Journals Online (AJOL)

    Kamwendo, Gregory H. Vol 15 (2001) - Articles Book Review: Neville Alexander, (ed), Social Dynamics - special issue on 'Language Policies in Africa', Ayo Bamgbose, Language and Exclusion: The consequences of language policies in Africa Details PDF. ISSN: 1016-0728. AJOL African Journals Online. HOW TO USE ...

  8. Author Details

    African Journals Online (AJOL)

    Wotshela, Luvuyo. Vol 7, No 1 (2003) - Articles Review Symposium: Neville Alexander. An Ordinary Country: Issues in the Transition from Apartheid to Democracy. Pietermaritzburg. Natal University Press. 2002. Details PDF. ISSN: 1027-4332. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for ...

  9. Author Details

    African Journals Online (AJOL)

    Jordan, Z Pallo. Vol 7, No 1 (2003) - Articles Review Symposium: Neville Alexander. An Ordinary Country: Issues in the Transition from Apartheid to Democracy. Pietermaritzburg. Natal University Press. 2002. Details PDF. ISSN: 1027-4332. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  10. Author Details

    African Journals Online (AJOL)

    Wodajo, Negussie. Vol 11, No 2 (1997) - Articles Comparative study of aqueous extractions of the neurotoxin -ODAP from grass pea assayed by flow injection analysis. Details PDF. ISSN: 1726-801X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

  11. Author Details

    African Journals Online (AJOL)

    NENTY, N. JOHNSON. Vol 7, No 3 (2001) - Articles Common errors and perfomance of students in junior secondary mathematics certificate examinations in Cross River State, Nigeria Details PDF. ISSN: 1118-0579. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's ...

  12. Author Details

    African Journals Online (AJOL)

    Brown, Duncan. Vol 16, No 2 (2002): Continental Africans & the Question of Identity - Articles Environment and Identity: Douglas Livingstone's A Littoral Zone Details. ISSN: 0256-004. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  13. Author Details

    African Journals Online (AJOL)

    Aderinokun, GA. Vol 9, No 1 (1999) - Articles Relative Influence Of Sociodemographic Variables On Oral Health And Habits Of Some Nigerian School Children Abstract · Vol 9, No 4 (1999) - Articles Oral health services in Nigeria Details. ISSN: 0189-2657. AJOL African Journals Online. HOW TO USE AJOL.

  14. Author Details

    African Journals Online (AJOL)

    Body composition assessment in 221 Nigerian adults using bioelectrical impedance measurements. Abstract · Vol 10, No 3 (2000) - Articles Near-patient testing in the developing countries. Evaluation of a hemocue blood glucose analyser. Details · Vol 11, No 1 (2001) - Articles LDL-peroxidation, and total atioxidant status in ...

  15. Author Details

    African Journals Online (AJOL)

    Love, Alison. Vol 29, No 2 (2002) - Articles Policy-makers, the Press and Politics: Reporting a Public Policy Document Details. ISSN: 0379-0622. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  16. Author Details

    African Journals Online (AJOL)

    Ram, S. Vol 12, No 1 (2000) - Articles Ionospheric Plasma Heating During Powerful Wave Propagation. Details. ISSN: 1015-079X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

  17. Author Details

    African Journals Online (AJOL)

    Batisani, NJ. Vol 12 (2003) - Articles A review of Botswana soil fertility research: current status and prospects. Details. ISSN: 1021-0873. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

  18. Author Details

    African Journals Online (AJOL)

    Badrawi, H.M.. Vol 12, No 3 (2000) - Articles EFFECTS OF SOLCOSERYL AND LOW DOSE ASPIRIN ON UTERINE BLOOD FLOW Details. ISSN: 1110-5607. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions ...

  19. Author Details

    African Journals Online (AJOL)

    Lipenga, Allan. Vol 16 (2002) - Articles Le Chichewa essai de description dans une perspective didactique. Details PDF. ISSN: 1016-0728. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

  20. Author Details

    African Journals Online (AJOL)

    EKODECK, EK. Vol 3, No 2 (2003) - Articles Intêret de l'alterologie normative dans la sélection des argiles kaoliniques pour la production industrielle des caoutchoucs, du papier, des peintures et des plastiques. Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  1. Author Details

    African Journals Online (AJOL)

    alterologie normative dans la sélection des argiles kaoliniques pour la production industrielle des caoutchoucs, du papier, des peintures et des plastiques. Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for ...

  2. Author Details

    African Journals Online (AJOL)

    Sakwe, AM. Vol 2, No 3 (2002) - Articles Onchocerciasis Spectrum and Immunoglobulin G Responses of Endemic Normal subjects to Selected Recombinant Peptides Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  3. Author Details

    African Journals Online (AJOL)

    Idowu, OO. Vol 8, No 1 (2003) - Articles Evaluation of Different Substrates and Combinations on the Growth of Pleurotus pulmonarius (Fries) Quelet (Sajor-caju) Details. ISSN: 1118-2733. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  4. Author Details

    African Journals Online (AJOL)

    Tetiker, H. Vol 17, No 3 (2014) - Articles Central region morphometry in a child brain; Age and gender differences. Abstract PDF · Vol 20, No 2 (2017) - Articles MRI-based detailed evaluation of the anatomy of the human coccyx among Turkish adults. Abstract PDF. ISSN: 1119-3077. AJOL African Journals Online. HOW TO ...

  5. Author Details

    African Journals Online (AJOL)

    Hady, A. Vol 12, No 2 (2000) - Articles CLINICAL AND HISTOPATHOLOGICAL STUDY OF VOCAL CORD POLYPS Details. ISSN: 1110-5607. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  6. Author Details

    African Journals Online (AJOL)

    Development of a trap to contaminate variegated grasshoppers (Zonocerus variegatus L.) (Orthoptera: Pyrgomorphidae) with Metarrhyzium flavo-viride Gams & Rozsypal in the field. Details · Vol 40, No 1 (2007) - Articles Yam pests in the Ashanti and Brong Ahafo regions of Ghana: A study of farmers\\' indigenous technical ...

  7. Author Details

    African Journals Online (AJOL)

    Focho, DA. Vol 2, No 1 (2002) - Articles Observations on the Meiotic Process in the African Pest Grasshopper Taphronota thaelephora Stal. (Orthoptera : Pyrgomorphidae) Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  8. Author Details

    African Journals Online (AJOL)

    Details · Vol 4, No 2 (2000) - Articles Book Review: J. Kelly. Rethinking Industrial Relations: Mobilization, Collectivism and Long Waves. K. Moody. Workers in a Lean World: Unions in the International Economy. B. Nissen. Which Direction for Organized Labour? Essays on Organizing, Outreach and Internal Transformation

  9. Author Details

    African Journals Online (AJOL)

    Dalamba, Yolisa. Vol 14, No 1 (2000): Ethnicity and Identity - Articles Towards An African Renaissance: Some Thoughts on the Renaissance Conference September 28th & 29th 1998 and its Future Implications Details. ISSN: 0256-004. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  10. Author Details

    African Journals Online (AJOL)

    Comarof, John. Vol 1999, No 3-4 (1999) - Articles Alien-Nation: Zombies, Immigrants and Millennial Capitalism Details. ISSN: 0850-8712. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

  11. Author Details

    African Journals Online (AJOL)

    Agbodaze, DA. Vol 31, No 1 (1991) - Articles Biochemical characteristics of Plesiomonas shigelloides isolated from prawns (Macrobrachium sp.) and water sampled from the shore-line of the Volta River, Ghana Details. ISSN: 0855-1448. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  12. Author Details

    African Journals Online (AJOL)

    Angwe, CA. Vol 1, No 1 (2001) - Articles Culture potentials of Macrobrachium sp in Cameroon Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER ...

  13. Author Details

    African Journals Online (AJOL)

    Alexander, Neville. Vol 4, No 2 (2000) - Articles Book Review: CRD Halisi. Black Political Though in the Making of South African Democracy Details PDF. ISSN: 1027-4332. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

  14. Author Details

    African Journals Online (AJOL)

    Erasmus, GJ. Vol 1, No 1 (2001) - Articles Genetic parameter estimates for growth traits in purebred Gudali and two-breed synthetic Wakwa beef cattle in a tropical environment. Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  15. Author Details

    African Journals Online (AJOL)

    Oyewunmi, O K. Vol 2, No 1 (1999) - Articles Bacterial pathogens Isolated After Surgical Hand Scrub at the Lagos University Teaching Hospital. Details. ISSN: 1119-1716. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

  16. Author Details

    African Journals Online (AJOL)

    Abstract PDF · Vol 13, No 2 (2001) - Articles Quarterly clinic 'Cerebral malaria' Details · Vol 22, No 4 (2010) - Articles Paediatric Wandering Spleens in Malawi Abstract PDF · Vol 23, No 1 (2011) - Articles Ward Round-A rare tumor of the kidney resulting in hypertension, renal failure and a cerebrovascular accident in a young ...

  17. Author Details

    African Journals Online (AJOL)

    Mika, A. Vol 8, No 1 (2002) - Articles Phytochemical, Cytotoxicity and microbial screening of euphorbia hirta linn. Details. ISSN: 1118-0579. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

  18. Author Details

    African Journals Online (AJOL)

    Chidester, David. Vol 15, No 2 (2002): - Articles Credo Mutwa, Zulu Shaman: The invetion and Appropriation of indigenous Authenticity in African Folk religion. Details. ISSN: 1011-7601. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  19. Author Details

    African Journals Online (AJOL)

    Ghirmay, Senait. Vol 12, No 1 (1998) - Articles Characterisitics and chemical composition of the oil of Cucurbita pepo seeds. Details PDF. ISSN: 1726-801X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions ...

  20. Author Details

    African Journals Online (AJOL)

    Wasunna, M. Vol 80, No 8 (2003): - Articles Visceral leishmaniasis with concomitant post kala-asar Dermal leishmaniasis responds to oral sitamaquine: case report. Details PDF. ISSN: 0012-835X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

  1. Author Details

    African Journals Online (AJOL)

    Mbui, J. Vol 80, No 8 (2003): - Articles Visceral leishmaniasis with concomitant post kala-asar Dermal leishmaniasis responds to oral sitamaquine: case report. Details PDF. ISSN: 0012-835X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  2. Author Details

    African Journals Online (AJOL)

    Comarof, Jean. Vol 1999, No 3-4 (1999) - Articles Alien-Nation: Zombies, Immigrants and Millennial Capitalism Details. ISSN: 0850-8712. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

  3. Author Details

    African Journals Online (AJOL)

    Choi, Soung-ai. Vol 3, No 1 (1999) - Articles Whose Honour, Whose Humiliation: Women, Men and the Economic Crisis in South Korea Details. ISSN: 1024-9451. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  4. Author Details

    African Journals Online (AJOL)

    Bowles, Roger. Vol 31, No 1 (2001) - Articles Enterprise Compliance with Local Authority Regulation in Kenya Details. ISSN: 1995-641X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

  5. Author Details

    African Journals Online (AJOL)

    Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Okeke, EO. Vol 10 (2006) - Articles Analysis of Stokes waves theory as a diffusion problem. Abstract · Vol 11 (2007) - Articles On the impact of wave-current on Stokes waves. Abstract. ISSN: 1116-4336. AJOL African ...

  6. Author Details

    African Journals Online (AJOL)

    Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Obtaining the green's function for electromagnetic waves propagating in layered in-homogeneous thin film media of spherical particles on a substrate. Abstract · Vol 20, No 2 (2008) - Articles solution growth and ...

  7. Author Details

    African Journals Online (AJOL)

    Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text ... Abstract · Vol 17 (2010) - Articles Investigating The Travelling Wave Solution For an SIR Endemic Disease Model With No Disease Related Death (When The Spatial Spread Of The Susceptible Is Not Negligible). Abstract.

  8. Author Details

    African Journals Online (AJOL)

    Journal Home > Advanced Search > Author Details. Log in or Register to get access to full text downloads. ... Vol 8 (2004) - Articles Further on stokes expansions for the finite amplitude water waves. Abstract · Vol 11 (2007) - Articles On the effects of wave steepness on higher order Stokes waves. Abstract. ISSN: 1116-4336.

  9. Author Details

    African Journals Online (AJOL)

    Kale, Ndiva Kofele. Vol 8, No 1 (2001) - Articles Good Governance as Political Conditionality Details PDF. ISSN: 1024-0969. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News.

  10. Author Details

    African Journals Online (AJOL)

    GODINHO, P. Vol 6 (1997) - Articles Some aspects of the reproduction of female corvine fish Plagioscion squamosissimus Heckel, 1840 (Scienidae) in a reservoir of southern Brazil Details. ISSN: 0795-0101. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

  11. Author Details

    African Journals Online (AJOL)

    Gontrand, C. Vol 14 (2002) - Articles Modélisation électrique de transistors bipolaires radiofréquences a hétérojonction Compatibles CMOS Details. ISSN: 1111-0902. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  12. Author Details

    African Journals Online (AJOL)

    Odigie, IP. Vol 10, No 4 (2000) - Articles High dose vitamin E administration attenuates hypertensin in 2-Kidney 1 Clip Goldblatt hypertensive rats. Details. ISSN: 0189-2657. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

  13. Author Details

    African Journals Online (AJOL)

    Wasunna, AO. Vol 80, No 9 (2003): - Articles Neonatal bacterial meningitis at the newborn unit of Kenyatta National Hospital Details PDF · Vol 88, No 1 (2011) - Articles Clinical Risk Index for Babies (Crib) Ii Score as a Predictor of Neonatal Mortality among Low Birth Weight Babies at Kenyatta National Hospital Abstract PDF ...

  14. Author Details

    African Journals Online (AJOL)

    Musoke, RN. Vol 80, No 9 (2003): - Articles Neonatal bacterial meningitis at the newborn unit of Kenyatta National Hospital Details PDF · Vol 89, No 2 (2012) - Articles The impact of partial kangaroo mother care on growth rates and duration of hospital stay of low birth weight infants at the Kenyatta National Hospital, Nairobi

  15. Author Details

    African Journals Online (AJOL)

    Workalemahu, Bantikassegn. Vol 13, No 2 (1999) - Articles Electronic propertiesof junctions between aluminium and polyaniline doped with dodecylbenzene sulphonate. Details PDF. ISSN: 1726-801X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

  16. Author Details

    African Journals Online (AJOL)

    Onuoha, AIN. Vol 1, No 1 (2002) - Articles The Vibration Effect Of Unbalance Mass On Vertical Centrifugal Pump Rotor Details. ISSN: 1596-3497. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  17. Author Details

    African Journals Online (AJOL)

    Equus asinus) in cultivation tasks in Zimbabwe Details. ISSN: 1019-7788. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

  18. Author Details

    African Journals Online (AJOL)

    Journal Home > Advanced Search > Author Details. Log in or Register to get access ... No 3 (2009) - Articles Rising rates of Caesarean sections: an audit of Caesarean sections in a specialist private practice ... An audit of surgical termination of pregnancy at a level 1 health facility in South Africa Abstract PDF · Vol 54, No 6 ...

  19. Author Details

    African Journals Online (AJOL)

    Revathi, G. Vol 80, No 9 (2003): - Articles Neonatal bacterial meningitis at the newborn unit of Kenyatta National Hospital Details PDF · Vol 83, No 6 (2006): - Articles Bronchoscopic study on aetiology of chronic cough in HIV-infected adults with negative sputum smears for mycobacterium tuberculosis at Kenyatta National ...

  20. Author Details

    African Journals Online (AJOL)

    Edufunke, IO. Vol 10, No 3 (2000) - Articles Toxicity test of water homogenate of cissus populnea stem in mice and its effects on weights of some organs, serum gonadotropins, lipids and uric acid in male albino rats. Details. ISSN: 0189-2657. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for ...

  1. Author Details

    African Journals Online (AJOL)

    Lema, VM. Vol 80, No 9 (2003): - Articles Fournier's gangrene complicating vasectomy. Details PDF · Vol 86, No 6 (2009) - Articles Therapeutic misconception and clinical trials in sub-saharan Africa: A review. Abstract PDF · Vol 86, No 11 (2009) - Articles HIV/AIDS and pregnancy-related deaths in Blantyre, Malawi

  2. Author Details

    African Journals Online (AJOL)

    Green, J.M.. Vol 10, No 1 (2001) - Articles Information from Radio Telemetry on movements and exploitation of naturalized Rainbow trout, Oncorhynchus mykiss (Walbaum), in Kenya cold water streams. Details. ISSN: 0002-0036. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  3. Author Details

    African Journals Online (AJOL)

    Nardi, G. Vol 12, No 1 (2004) - Articles Nomenclatural and taxonomic notes on some Endomia Castelnau de Laporte (Coleoptera : Anthicidae) : short communication. Details · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  4. Author Details

    African Journals Online (AJOL)

    Ziady, C. Vol 1, No 1 (2003) - Articles Infliximab (Revellex) inflammatory bowel disease: guidelines. Details. ISSN: 1812-1659. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News.

  5. Author Details

    African Journals Online (AJOL)

    Nzogang, JF. Vol 3, No 3 (2003) - Articles Effet des huiles essentielles des feuilles et des extrémités fleuries de Cupressus lusitanica sur la Tique Rhipicephalus lunulatus à L'ouest-Cameroun Details PDF · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

  6. Author Details

    African Journals Online (AJOL)

    An open study of the safety and efficacy of ranitidine Bismuth citrate in the treatment of patients with Helicobacter Pylori-associated duodenal ulcer. Details · Vol 18, No 4 (2008) - Articles Haemosuccus pancreaticus as a rare initial manifestation of pancreatic carcinoma. Abstract · Vol 22, No 2 (2012) - Articles Intravesical ...

  7. Author Details

    African Journals Online (AJOL)

    OKANSEY, F. Vol 8, No 1 (2000) - Articles Adolescent Students' Perception of their career guidance and counselling needs. Details. ISSN: 1117-1421. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  8. The highly successful safe remediation of the Fernald waste pits undertaken under the privatization model

    Energy Technology Data Exchange (ETDEWEB)

    Cherry, Mark; Lojek, Dave; Murphy, Con

    2003-02-23

    Remediation of eight waste pits at the Department of Energy (DOE) Fernald site, located northwest of Cincinnati, Ohio, involves excavating approximately one million tonnes in-situ of low-level waste which were placed in pits during Fernald's production era. This unique project, one of the largest in the history of CERCLA/Superfund, includes uranium and thorium contaminated waste, soils and sludges. These wet soils and sludges are thermally dried in a processing facility to meet Department of Transportation (DOT) transportation and disposal facility waste acceptance criteria, loaded into railcars and shipped to the Envirocare waste disposal facility at Clive, Utah. This project is now approximately 60% complete with more than 415,000 tonnes (460,000 tons) of waste material safely shipped in 74 unit trains to Envirocare. Work is scheduled to be completed in early 2005. Success to date demonstrates that a major DOE site remediation project can be safely and successfully executed in partnership with private industry, utilizing proven commercial best practices, existing site labor resources and support of local stakeholders. In 1997 under the DOE's privatization initiative, Fluor Fernald, Inc. (Fluor Fernald) solicited the services of the remediation industry to design, engineer, procure, construct, own and operate a facility that would undertake the remediation of the waste pits. The resulting procurement was awarded to IT Corporation, currently Shaw Environmental and Infrastructure, Inc. (Shaw). The contractor was required to finance the procurement and construction of its facilities and infrastructure. The contract was performance-based and payment would be made on the successful loadout of the waste from the facility on a per-ton basis meeting the Envirocare waste acceptance criteria. This paper details the performance to date, the challenges encountered, and the seamless partnering between DOE, the Environmental Protection Agency (EPA), Fluor Fernald

  9. Revealing the structural detail of individual polymers using a combination of electrospray deposition and UHV-STM

    DEFF Research Database (Denmark)

    Jethwa, Siddharth; Madsen, Mikael; Knudsen, Jakob Back

    2017-01-01

    A phenylene vinylene polymer derivative is deposited onto a Au(111) surface under Ultra-High Vacuum (UHV) conditions using electrospray ionisation deposition and characterised using Scanning Tunnelling Microscopy (STM). High resolution STM images reveal the polymer structure on the monomeric scale...

  10. Segmented and Detailed Visualization of Anatomical Structures based on Augmented Reality for Health Education and Knowledge Discovery

    Directory of Open Access Journals (Sweden)

    Isabel Cristina Siqueira da Silva

    2017-05-01

    Full Text Available The evolution of technology has changed the face of education, especially when combined with appropriate pedagogical bases. This combination has created innovation opportunities in order to add quality to teaching through new perspectives for traditional methods applied in the classroom. In the Health field, particularly, augmented reality and interaction design techniques can assist the teacher in the exposition of theoretical concepts and/or concepts that need of training at specific medical procedures. Besides, visualization and interaction with Health data, from different sources and in different formats, helps to identify hidden patterns or anomalies, increases the flexibility in the search for certain values, allows the comparison of different units to obtain relative difference in quantities, provides human interaction in real time, etc. At this point, it is noted that the use of interactive visualization techniques such as augmented reality and virtual can collaborate with the process of knowledge discovery in medical and biomedical databases. This work discuss aspects related to the use of augmented reality and interaction design as a tool for teaching anatomy and knowledge discovery, with the proposition of an case study based on mobile application that can display targeted anatomical parts in high resolution and with detail of its parts.

  11. Author Details

    African Journals Online (AJOL)

    Etude des paramètres de compressibilité et de cisaillement de l'argile-sableuse de la région de Douala au Cameroun Details PDF · Vol 3, No 2 (2003) - Articles Effet du remaniement par décompression de L'échantillon sur la résistance au cisaillement de l'argile-sableuse jaunatre de Ndogbong dans la région de Douala ...

  12. Author Details

    African Journals Online (AJOL)

    Bahi, Aghi. Vol 7, No 1 (2003) - Articles La « Sorbonne » d'Abidjan: rêve de démocratie ou naissance d'un espace public? Details PDF. ISSN: 1027-4332. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

  13. Multiple rewards from a treasure trove of novel glycoside hydrolase and polysaccharide lyase structures: new folds, mechanistic details, and evolutionary relationships.

    Science.gov (United States)

    Fushinobu, Shinya; Alves, Victor D; Coutinho, Pedro M

    2013-10-01

    Recent progress in three-dimensional structure analyses of glycoside hydrolases (GHs) and polysaccharide lyases (PLs), the historically relevant enzyme classes involved in the cleavage of glycosidic bonds of carbohydrates and glycoconjugates, is reviewed. To date, about 80% and 95% of the GH and PL families, respectively, have a representative crystal structure. New structures have been determined for enzymes acting on plant cell wall polysaccharides, sphingolipids, blood group antigens, milk oligosaccharides, N-glycans, oral biofilms and dietary seaweeds. Some GH enzymes have very unique catalytic residues such as the Asp-His dyad. New methods such as high-speed atomic force microscopy and computational simulation have opened up a path to investigate both the dynamics and the detailed molecular interactions displayed by these enzymes. Copyright © 2013 Elsevier Ltd. All rights reserved.

  14. LCA as a Tool for Assessing Product and Process Oriented Eco-Innovations Undertaken by Enterprises

    Directory of Open Access Journals (Sweden)

    Rybaczewska-Błażejowska Magdalena

    2017-09-01

    Full Text Available This paper examines the application of life cycle assessment (LCA as an approach to foster the product and process oriented eco- innovation of enterprises, using the fruit and vegetable processing plant as an example. LCA, which is traditionally used to assess the impacts of a single product system on the environment, was applied in the enterprise context. This was made possible by forming an indicator describing the environmental profile of an enterprise, which is calculated by the sum of the multiplication of the environmental impact assessment (LCIA results for individual unit processes within a particular impact category and their weights reflecting the structure of production in an enterprise. In order to distinguish and indicate the direction in which an enterprise should undertake its eco-innovative actions (implementing eco-innovations within the product or production process the LCIA results are presented individually for products and production processes. The research was conducted in full compliance with the LCA methodology. LCA proved that the analysed enterprise has the largest negative impacts on the environment in the following impact categories: marine eco-toxicity, freshwater eco-toxicity, freshwater eutrophication, human toxicity and natural land transformation. They result primarily from the consumption of thermal and electric energy in the production processes. Therefore, to improve energy efficiency, the enterprise should take eco-innovative actions in the processes applied.

  15. Detailed DFT studies of the electronic structure and optical properties of KBaMSe{sub 3} (M = As, Sb)

    Energy Technology Data Exchange (ETDEWEB)

    Azam, Sikander; Khan, Saleem Ayaz; Khan, Wilayat [New Technologies – Research Center, University of West Bohemia, Univerzitni 8, 306 14 Pilsen (Czech Republic); Muhammad, Saleh; Udin, Haleem [Materials Modeling Lab, Department of Physics, Hazara University, Mansehra (Pakistan); Murtaza, G., E-mail: murtaza@icp.edu.pk [Materials Modeling Laboratory, Department of Physics, Islamia College University, Peshawar (Pakistan); Khenata, R., E-mail: khenata_rabah@yahoo.fr [Laboratoire de Physique Quantique et de Modélisation Mathématique (LPQ3M), Département de Technologie, Université de Mascara, Mascara 29000 (Algeria); Shah, Fahad Ali [Materials Modeling Lab, Department of Physics, Hazara University, Mansehra (Pakistan); Minar, Jan [New Technologies – Research Center, University of West Bohemia, Univerzitni 8, 306 14 Pilsen (Czech Republic); Ahmed, W.K. [ERU, College of Engineering, United Arab Emirates University, Al Ain (United Arab Emirates)

    2015-09-25

    Highlights: • The compounds are studied by FP-LAPW method within LDA, GGA, EV-GGA approximations. • All the compounds show indirect band gap nature. • Bonding nature is mixed covalent and ionic. • High absorption peaks and reflectivity ensures there utility in optoelectronic devices. - Abstract: Bonding nature as well as the electronic band structure, electronic charge density and optical properties of KBaMSe{sub 3} (M = As, Sb) compounds have been calculated using a full-potential augmented plane wave (FP-LAPW) method within the density functional theory. The exchange–correlation potential was handled with LDA and PBE-GGA approximations. Moreover, the Engel–Vosko generalized gradient approximation (EV-GGA) and the modified Beck–Johnson potential (mBJ) were also applied to improve the electronic band structure calculations. The study of band structure shows that KBaAsSe{sub 3}/KBaSbSe{sub 3} compounds have an indirect band gap of 2.08/2.10 eV which are in close agreement with the experimental data. The bonding nature has been studied as well using the electronic charge density (ECD) contour in the (1 0 1) crystallographic plane. It has been revealed that As/Sb–O atoms forms a strong covalent, while Ba–Se atoms form weak covalent bonding and the ionic bonding is mainly found between K and Ba atoms. Moreover, the complex dielectric function, absorption coefficient, refractive index, energy-loss spectrum and reflectivity have been estimated. From the reflectivity spectra, we found that KBaAsSe{sub 3} compound shows greater reflectivity than KBaSbSe{sub 3}, which means that KBaAsSe{sub 3} compound can be used as shielding material in visible and also in ultra violet region.

  16. Author Details

    African Journals Online (AJOL)

    Lokonon, BE. Vol 25, No 2 (2013) - Articles Structural and ethnobotanical characterization of velvet tamarind (Dialium guineense willd), a multipurpose tree species. Abstract PDF · Vol 25, No 2 (2013) - Articles Structural and ethnobotanical characterization of velvet tamarind (Dialium guineense willd), a multipurpose tree ...

  17. Author Details

    African Journals Online (AJOL)

    Glelekakai, R. Vol 25, No 2 (2013) - Articles Structural and ethnobotanical characterization of velvet tamarind (Dialium guineense willd), a multipurpose tree species. Abstract PDF · Vol 25, No 2 (2013) - Articles Structural and ethnobotanical characterization of velvet tamarind (Dialium guineense willd), a multipurpose tree ...

  18. Author Details

    African Journals Online (AJOL)

    Determination of Velocity And Acceleration of Structural Deformation Using Kalman Filter Technique Abstract · Vol 20, No 1 (2012) - Articles Deformation Prediction Using Linear Polynomial Functions Abstract · Vol 20, No 1 (2012) - Articles Determination of Velocity And Acceleration of Structural Deformation Using Kalman ...

  19. Author Details

    African Journals Online (AJOL)

    Galishnikova, V. V.. Vol 9, No 7S (2017) - Articles Forecasting the condition of petroleum impregnated load bearing concrete and reinforced concrete structures. Abstract PDF · Vol 9, No 7S (2017) - Articles A reliable method for the stability analysis of structures. Abstract PDF. ISSN: 1112-9867. AJOL African Journals Online.

  20. Risk identification applied to pipe supports structures on detailing phase; Identificacao de riscos aplicada a atividade de projeto de estruturas para suportes de tubulacoes industriais

    Energy Technology Data Exchange (ETDEWEB)

    Balbi, Diego Junca de Gonzaga; Cruz, Rodrigo Luiz Neves [Promon Engenharia, Sao Paulo, SP (Brazil); Morano, Cassia Andrea Ruotolo [Universidade Federal Fluminense (UFF), Niteroi, RJ (Brazil)

    2012-07-01

    The increasing demand for speed in the delivering process of projects in the Oil and Gas has forced a rethink on contracting strategies for fabrication and supply of facilities steel structures, equipment, pipes and other components that represent a critical path activities regarding construction on field. The consolidation of information necessary for the acquisition of these features is a multidisciplinary is based on steps of basic/conceptual, detail, construction, commissioning and startup of the plants. Among the specialties that make up the vast majority of enterprises of this industry, mechanical, civil, electrical and piping engineering are the most important ones. Being piping engineer the main subject of this paper. For each of the specialties above there are structured subsystems, with more specific functions in relation to the content, area and position. These disciplines are connected, some in a higher level than others, and constitute a network of exchange based on necessary information to perform the tasks inherent in each specialty. The present paper aims to identify risk factors that exist during the design phase in the discipline of piping, specifically on the activity of detailing structures to withstand loads from its own weight, weight of the fluid and thermal insulation, as well as efforts from its thermal expansion, addressing its sources and possible actions. Thus, a preliminary risk analysis is presented to point out the most critical items and its importance levels. (author)

  1. Detailed Analysis of Amplitude and Slope Diffraction Coefficients for knife-edge structure in S-UTD-CH Model

    Directory of Open Access Journals (Sweden)

    Eray Arik

    2017-03-01

    Full Text Available In urban, rural and indoor applications, diffraction mechanism is very important to predict the field strength and calculate the coverage accurately. The diffraction mechanism takes place on NLOS (non-line-of-sight cases like rooftop, vertex, corner, edge and sharp surfaces. S-UTD-CH model computes three type of electromagnetic wave incidence such as direct, reflected and diffracted waves, respectively. As obstacles in diffraction geometry are in the same or closer height, contribution of the diffraction mechanism is dominant. To predict the diffracted fields accurately, amplitude and slope diffraction coefficients and the derivative of these coefficients have to be taken correctly. In this paper, all the derivations about diffraction coefficients are made for knife edge type structures and extensive simulations are performed in order to analyze the amplitude and diffraction coefficients. In plane angle diffraction, contributions of amplitude and slope diffraction coefficient are maxima.

  2. A detailed investigation on the global minimum structures of mixed rare-gas clusters: geometry, energetics, and site occupancy.

    Science.gov (United States)

    Marques, Jorge M C; Pereira, Francisco B

    2013-03-05

    We performed a global minimum search of mixed rare-gas clusters by applying an evolutionary algorithm (EA), which was recently proposed for binary atomic systems (Marques and Pereira, Chem. Phys. Lett. 2010, 485, 211). Before being applied to the potentials used in this work, the EA was further tested against results previously reported for the Ar(N)Xe(38-N) clusters and several new putative global minima were discovered. We employed either simple Lennard-Jones (LJ) potentials or more realistic functions to describe pair interactions in Ar(N)Kr(38-N), Ar(N)Xe(38-N), and Kr(N)Xe(38-N) clusters. The long-range tail of the pair-potentials shows some influence on the energetic features and shape of the structure of clusters. In turn, core-shell type structures are mostly observed for global minima of the binary rare-gas clusters, for both accurate and LJ potentials. However, the long-range tail of the potential may have influence on the type of atoms that segregate on the surface or form the core of the cluster. While relevant differences for the preferential site occupancy occur between the two potentials for Ar(N)Kr(38-N) (for N > 21), the type of atoms that segregate on the surface for Ar(N)Xe(38-N) and Kr(N)Xe(38-N) clusters is unaffected by the accuracy of the long-range part of the interaction in almost all cases. Moreover, the global minimum search for model-potentials in binary systems reveals that the surface-site occupancy is mainly determined by the combination of two parameters: the size ratio of the two types of particles forming the cluster and the minimum-energy ratio corresponding to the pair-interactions between unlike atoms. Copyright © 2012 Wiley Periodicals, Inc.

  3. Academic detailing.

    Science.gov (United States)

    Shankar, P R; Jha, N; Piryani, R M; Bajracharya, O; Shrestha, R; Thapa, H S

    2010-01-01

    There are a number of sources available to prescribers to stay up to date about medicines. Prescribers in rural areas in developing countries however, may not able to access some of them. Interventions to improve prescribing can be educational, managerial, and regulatory or use a mix of strategies. Detailing by the pharmaceutical industry is widespread. Academic detailing (AD) has been classically seen as a form of continuing medical education in which a trained health professional such as a physician or pharmacist visits physicians in their offices to provide evidence-based information. Face-to-face sessions, preferably on an individual basis, clear educational and behavioural objectives, establishing credibility with respect to objectivity, stimulating physician interaction, use of concise graphic educational materials, highlighting key messages, and when possible, providing positive reinforcement of improved practices in follow-up visits can increase success of AD initiatives. AD is common in developed countries and certain examples have been cited in this review. In developing countries the authors have come across reports of AD in Pakistan, Sudan, Argentina and Uruguay, Bihar state in India, Zambia, Cuba, Indonesia and Mexico. AD had a consistent, small but potentially significant impact on prescribing practices. AD has much less resources at its command compared to the efforts by the industry. Steps have to be taken to formally start AD in Nepal and there may be specific hindering factors similar to those in other developing nations.

  4. Author Details

    African Journals Online (AJOL)

    Structural Parameters and Functionality in Dye-sensitized Solar Cells Abstract PDF · Vol 62 (2009) - Articles Hydrogenation Reactions in Ionic Liquids. The Efficient Reduction of Nitroarenes, including Nitroferrocenyl Derivatives, to the ...

  5. Author Details

    African Journals Online (AJOL)

    . Abstract PDF · Vol 9, No 3S (2017): Special Issue - Articles Comparison between Binary Particles Swarm Optimization (BPSO) and Binary Artificial Bee Colony (BABC) for nonlinear autoregressive model structure selection of chaotic data

  6. Author Details

    African Journals Online (AJOL)

    , South Africa Abstract PDF · Vol 22 (2000) - Articles Towards adaptive approaches to management of the South African abalone haliotis midae fishery. Abstract PDF · Vol 35, No 3 (2013) - Articles Can anchovy age structure be estimated from ...

  7. Author Details

    African Journals Online (AJOL)

    Legesse, K. Vol 3, No 4 (2015) - Articles Structural Studies of BaTiO3 Ferroelectric Material Prepared by Green Chemistry (Sol-gel) Method Abstract PDF · Vol 4, No 1 (2015) - Articles Synthesis and Characterization of BaBiO3 Perovskite through Chemical Route Abstract PDF. ISSN: 2305-3372. AJOL African Journals Online.

  8. Author Details

    African Journals Online (AJOL)

    Ezekoye, VA. Vol 33, No 1 (2014) - Articles Synthesis, structural and surface morphological characterizations of sulfated zirconia Nanoparticles via chemical route. Abstract PDF. ISSN: 2467-8821. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

  9. Author Details

    African Journals Online (AJOL)

    Ezekoye, BA. Vol 33, No 1 (2014) - Articles Synthesis, structural and surface morphological characterizations of sulfated zirconia Nanoparticles via chemical route. Abstract PDF · Vol 28, No 2 (2009) - Research papers. Intercritical Heat Treatment Effects on Low Carbon Steels Quenched from Intermediate Temperature ...

  10. Author Details

    African Journals Online (AJOL)

    Peoples, FM. Vol 15, No 1&2 (2008) - Articles Street Harassment in Cairo: A Symptom of Disintegrating Social Structures Abstract PDF. ISSN: 1024-0969. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

  11. Author Details

    African Journals Online (AJOL)

    Akinchan, Narayan T. Vol 9, No 1 (2003) - Articles Identification of Trimer and Dimer of 4-hydroxy-3-methoxy benzaldehyde in crystal structure of Vanillin Abstract PDF. ISSN: 1118-0579. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  12. Author Details

    African Journals Online (AJOL)

    Jhaumeer-Laulloo, S. Vol 4, No 1 (2010) - Articles Structure-activity relationship of Schiff base derivatives of bis(aminophenyl)disulfide and p-vanillin as antimicrobial agents. Abstract PDF. ISSN: 1997-342X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

  13. Author Details

    African Journals Online (AJOL)

    Zhang, X-C, Ethiopia. Vol 26, No 3 (2012) - Articles Two Zn and Hg bromide salts based on 1-ethyl-3-methyl imidazolium ionic liquid: Ionothermal synthesis, structures and supramolecular organization. Abstract PDF. ISSN: 1726-801X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  14. Author Details

    African Journals Online (AJOL)

    Worku, A. Vol 28 (2011) - Articles Recent Developments in the Definition of Design Earthquake Ground Motions Calling for a Revision of the Current Ethiopian Seismic Code - EBCS 8: 1995. Abstract PDF · Vol 30 (2013) - Articles Seismic Soil-Structure Interaction as a Potential Tool for Economical Seismic Design of ...

  15. Author Details

    African Journals Online (AJOL)

    Boateng, Stephen Oti. Vol 5 (2017) - Articles Reliability based design of ship structures using Monte Carlo Simulation (Lrfd Vs Asd) Abstract. ISSN: 2026-6324. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  16. Author Details

    African Journals Online (AJOL)

    Musa, AO. Vol 2, No 2 (2009) - Articles Copper (I) oxide (Cu2) based solar cells - a review. Abstract PDF · Vol 2, No 2 (2009) - Articles Fabrication and study of the electrical properties of PbO/Fe based composite resistors. Abstract PDF · Vol 4, No 1 (2011) - Articles Structural Characterization of Lithium Doped Nzp ...

  17. Author Details

    African Journals Online (AJOL)

    Natal: Sediment Conditions and Population Structure of the Largest Mangrove Forests in South Af Abstract PDF. ISSN: 0856-860X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

  18. Author Details

    African Journals Online (AJOL)

    Anning, AK. Vol 28, No 3 (2008) - Articles Floristic Composition and Vegetation Structure of The KNUST Botanic Garden, Kumasi, Ghana Abstract PDF. ISSN: 0855-0395. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  19. Author Details

    African Journals Online (AJOL)

    Cohen-Bouhacina, T. Vol 20 (2011): Series C: Mathematical Sciences, Engineering and Technology - Articles Structuration et nanorhéologie d'un liquide confiné : étude par AFM dynamique. Abstract PDF. ISSN: 2305-2678. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  20. Author Details

    African Journals Online (AJOL)

    Kabre, T J. Vol 78 (2014) - Articles Dynamique de structuration spatio-temporelle des populations de familles de macroinvertébrés dans un continuum lac de barrage-effluent-fleuve issu de périmètre irrigué. Bassin de la Volta (Burkina Faso) Abstract PDF. ISSN: 1997-5902. AJOL African Journals Online. HOW TO USE ...

  1. Author Details

    African Journals Online (AJOL)

    Gálvez-Rodríguez, J.F.. Vol 40, No 5 (2017) - Articles Completion of a fractal structure. Abstract. ISSN: 1607-3606. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER ...

  2. Author Details

    African Journals Online (AJOL)

    Ezema, FI. Vol 33, No 1 (2014) - Articles Synthesis, structural and surface morphological characterizations of sulfated zirconia Nanoparticles via chemical route. Abstract PDF. ISSN: 2467-8821. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

  3. Author Details

    African Journals Online (AJOL)

    Octelina, Castillo-Ruiz. Vol 16, No 1 (2016) - Articles Tobacco and alcohol use in adolescents with unplanned pregnancies: relation with family structure, tobacco and alcohol use at home and by friends. Abstract PDF. ISSN: 1680-6905. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  4. Author Details

    African Journals Online (AJOL)

    Norris, D. Vol 32, No 2 (2002) - Articles Effect of population structure and underlying magnitude of dominance genetic effects on the estimation of additive and dominance genetic variances. Abstract PDF · Vol 45, No 4 (2015) - Articles Effects of coriander (Coriandrum sativum L.) seed powder and extract on performance of ...

  5. Author Details

    African Journals Online (AJOL)

    Awodoyin, Ro. Vol 5, No 1 (2004) - Articles Population structure of Vitelaria paradoxa Gaertn. F. and Parkia biglobosa(Jacq.) Benth.in the Agroforestry Parklands of Nigerian humid Savanna Abstract PDF · Vol 18 (2011) - Articles Floral Diversity in the Wetlands of Apete River, Eleyele Lake and Oba Dam in Ibadan, Nigeria: ...

  6. Author Details

    African Journals Online (AJOL)

    Awodoyin, R O. Vol 15, No 3 (2013) - Articles Spatial distribution and abundance of solanecio biafrae (olive & heirne) c. Jeffrey and structure of weed communities in some Cocoa plots in Ekiti, Oyo And Cross River States, Nigeria Abstract PDF. ISSN: 0794-4896. AJOL African Journals Online. HOW TO USE AJOL.

  7. Author Details

    African Journals Online (AJOL)

    Jaiyesimi, BG. Vol 8, No 1 (2016) - Articles Reliability and Validity Testing of Modified Structured Wellness Questionnaire for Monitoring the Wellness Perception of University Students Abstract. ISSN: 2141-1263. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

  8. Author Details

    African Journals Online (AJOL)

    Nnamani, C V. Vol 27 (2014) - Articles Pollen diversity, viability and floral structure of some Musa genotypes. Abstract PDF. ISSN: 01891731. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact ...

  9. Author Details

    African Journals Online (AJOL)

    Abstract PDF · Vol 9, No 4S (2017): Special Issue - Articles Agarwood oil quality classifier using machine learning. Abstract PDF · Vol 9, No 5S (2017): Special Issue - Articles The pre-processing technique and parameter adjustment influences on NARX-based BPSO structure for time-varying water temperature modelling

  10. Author Details

    African Journals Online (AJOL)

    Niamba, Pascal. Vol 40, No 1 (2017) - Articles Profil allergénique des patients symptomatiques réalisant des prick-tests dans une structure sanitaire privée de la ville de Ouagadougou (Burkina Faso) Abstract. ISSN: 1011-6028. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  11. Author Details

    African Journals Online (AJOL)

    Barro-Traoré, Fatou. Vol 40, No 1 (2017) - Articles Profil allergénique des patients symptomatiques réalisant des prick-tests dans une structure sanitaire privée de la ville de Ouagadougou (Burkina Faso) Abstract. ISSN: 1011-6028. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  12. Author Details

    African Journals Online (AJOL)

    Mix design proposal for structural concrete using messobo ordinary portland cement. Abstract PDF · Vol 18 (2001) - Articles Properties Of Concrete And Masonry Blocks Made Of Locally Available Scoria And Pumice Aggregates Abstract · Vol 17 (2000) - Articles Insurance requirements and practices of Ethiopia's ...

  13. Author Details

    African Journals Online (AJOL)

    Jasrotia, DS. Vol 7, No 3 (2015) - Articles Single crystal growth, x-ray structure analysis, optical band gap, raman spectra, strain tensor and photoluminscence properties in [HgCl4]- [R]+ and [ZnCl4]- [R]+ (R= 2-amino-5- chloropyridine) hybrid materials. Abstract PDF. ISSN: 1112-9867. AJOL African Journals Online. HOW TO ...

  14. Author Details

    African Journals Online (AJOL)

    Ndikilar, Chifu E. Vol 19 (2011) - Articles Gravitational Metric Tensor Exterior to Rotating Homogeneous Spherical Masses Abstract · Vol 30 (2015) - Articles Effect of Cu and Co Dopıng on the Structural Propertıes of ZnO Nanopartıcles Abstract. ISSN: 1116-4336. AJOL African Journals Online. HOW TO USE AJOL.

  15. Author Details

    African Journals Online (AJOL)

    The effect of sea temperature and food availability on the spawning success of Cape Anchovy engraulis capensis in the Southern Benguela Abstract PDF · Vol 19 (1998) - Articles Long-term trends in the abundance and community structure of Coastal Zooplankton in the Southern Benguela system, 1951–1996

  16. Author Details

    African Journals Online (AJOL)

    Rehman, H. Vol 30, No 3 (2016) - Articles Synthesis, structural and antibacterial study of new silver complex with 3-acetyl-2H chromene-2-one. Abstract PDF. ISSN: 1726-801X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  17. Author Details

    African Journals Online (AJOL)

    Classification of visualization exudates fundus images results using support vector machine. Abstract PDF · Vol 9, No ... Comparison between Binary Particles Swarm Optimization (BPSO) and Binary Artificial Bee Colony (BABC) for nonlinear autoregressive model structure selection of chaotic data. Abstract PDF · Vol 9, No ...

  18. Author Details

    African Journals Online (AJOL)

    Marketing territorial et developpement local : quel apport pour la communication territoriale ? Cas des communes de Bejaia et d'El-Kseur Abstract · Vol 115 (2016) - Articles Assessing the impact of structural changes in the financial sector on the Algerian economy: A financial social accounting matrix approach. Abstract.

  19. Author Details

    African Journals Online (AJOL)

    Tutu, E. Vol 27, No 1 (2007) - Articles Friction coefficient of maize, cowpea and groundnuts on different structural surfaces. Abstract PDF. ISSN: 0855-0395. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

  20. Author Details

    African Journals Online (AJOL)

    Aveyire, J. Vol 27, No 1 (2007) - Articles Friction coefficient of maize, cowpea and groundnuts on different structural surfaces. Abstract PDF. ISSN: 0855-0395. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions ...

  1. Author Details

    African Journals Online (AJOL)

    Twum, A. Vol 14, No 28 (2015) - Articles Connecting DNA Origami Structures Using the Biotin-Streptavidin Specific Binding Abstract PDF. ISSN: 1684-5315. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions ...

  2. Author Details

    African Journals Online (AJOL)

    Initial experience with laparoscopic splenectomy for immune thrombocytopenic purpura. Abstract PDF · Vol 51, No 4 (2013) - Articles Endoscopic management of bile leaks after laparoscopic cholecystectomy. Abstract PDF · Vol 51, No 4 (2013) - Articles Using a structured morbidity and mortality meeting to understand the ...

  3. Author Details

    African Journals Online (AJOL)

    Zhong, H. Vol 61 (2008) - Articles Preparation of MAl2O4: Eu2+, Sm3+ (M = Ca, Sr, Ba) Phosphors by the Combustion Method and their Luminescent Properties Abstract PDF · Vol 62 (2009) - Articles The Influence of Palladium on the Structure and Catalytic Activity of Lanthanum Based Mixed Oxide Abstract PDF.

  4. Author Details

    African Journals Online (AJOL)

    Bladergroen, B. Vol 60 (2007) - Articles Preparation and Characterization of Sulfonated Poly (ether ether ketone)/Phosphated Zirconia Nanoparticles Composite Proton-conducting Membranes Abstract PDF · Vol 61 (2008) - Articles Performance and Structure of LiNi0.5Mn1.5O4 Prepared from Various Ni Precursors for ...

  5. Author Details

    African Journals Online (AJOL)

    Yin, Y-B, Ethiopia. Vol 27, No 1 (2013) - Articles Synthesis and crystal structure of 1-[2-(3-ethyl-2,2-dimethylcyclobutyl)acetyl]-3-phenyl thiourea. Abstract PDF. ISSN: 1726-801X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  6. Author Details

    African Journals Online (AJOL)

    Adebola, OS. Vol 17, No 1 (2012) - Articles Anatomical Variations of the Sphenoid Sinus and Nearby Neurovascular Structures Seen on Computed Tomography of Black Africans Abstract PDF. ISSN: 2073-9990. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

  7. Author Details

    African Journals Online (AJOL)

    Abid, S. Vol 8, No 1 (2007) - Articles Finite element analysis of a fluid-structure interaction in flexible pipe line. Abstract PDF. ISSN: 1607-9949. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use ...

  8. Author Details

    African Journals Online (AJOL)

    Costa, GWWF. Vol 34, No 3 (2012) - Articles Chromosomal population structuring in carangids (Perciformes) between the north-eastern and south-eastern coasts of Brazil Abstract. ISSN: 1814-232X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

  9. Author Details

    African Journals Online (AJOL)

    Abstract PDF · Vol 5, No 2 (2010) - Articles Status of indigenous tree species regeneration under exotic plantations in Belete forest, South West Ethiopia Abstract PDF · Vol 8, No 2 (2013) - Articles Floristic Composition and Structural Analysis of Jibat Humid Afromontane Forest, West Shewa Zone, Oromia National Regional ...

  10. Author Details

    African Journals Online (AJOL)

    Ayalew, Abate. Vol 29, No 1 (2006) - Articles The undifferentiated afromontane forest of Denkoro in the central highland of Ethiopia: a floristic and structural analysis. Abstract PDF. ISSN: 2520–7997. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL ...

  11. Author Details

    African Journals Online (AJOL)

    Kelbessa, E. Vol 2, No 2 (2013) - Articles Floristic Composition and Community Analysis of Komto Afromontane Moist Forest, East Wollega Zone, West Ethiopia Abstract PDF · Vol 3, No 1 (2014) - Articles Interplay of Regeneration, Structure and Uses of Some Woody Species in Chilimo Forest, Central Ethiopia Abstract PDF ...

  12. Author Details

    African Journals Online (AJOL)

    Multiple factors affecting South African anchovy recruitment in the spawning, transport and nursery. Abstract PDF · Vol 19 (1998) - Articles Long-term trends in the abundance and community structure of Coastal Zooplankton in the Southern Benguela system, 1951–1996. Abstract PDF · Vol 19 (1998) - Articles Forecasting in ...

  13. Author Details

    African Journals Online (AJOL)

    Antonio, J. Vol 27, No 3 (2007) - Articles Effects Of Cutting Parameters On Acoustic Emission Signal Response During Drilling Of Laminated Composites Using Factorial Design Method Abstract PDF · Vol 31, No 2 (2011) - Articles Prediction of a delamination area during drilling of carbon composite laminates structures

  14. Author Details

    African Journals Online (AJOL)

    Olonade, KA. Vol 34, No 3 (2015) - Building, Civil & Geotechical Engineering Performance of Steel Slag as Fine Aggregate in Structural Concrete Abstract PDF · Vol 35, No 2 (2016) - Building, Civil & Geotechical Engineering A REVIEW OF THE EFFECTS OF WASTEWATER ON REINFORCED CONCRETE STRUCTURES ...

  15. Author Details

    African Journals Online (AJOL)

    Hall-Martin, A.J.. Vol 15, No 4 (1980) - Articles Observations on ovarian structure and development of the southern giraffe, Giraffa camelopardalis girafia. Abstract PDF · Vol 36, No 1 (2001) - Articles Evaluating herbivore extinction probabilities in Addo Elephant National Park, South Africa Abstract. ISSN: 2224-073X.

  16. Author Details

    African Journals Online (AJOL)

    Kuburi, L. S.. Vol 12, No 2 (2017) - Articles Investigation of the mechanical properties of Aluminium matrix composite for marine structures. Abstract. ISSN: 0795-5111. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and ...

  17. Author Details

    African Journals Online (AJOL)

    Nodulation pattern and biodiversity of rhizobia of some important leguminous trees and shrubs of Ethiopia Abstract · Vol 13, No 2 (2014) - Articles Mycorrhizal status and AMF community structure of fruit crops from low-input cropping system in Showa Robit, Ethiopia Abstract · Vol 14, No 1 (2015) - Articles Screening for ...

  18. Author Details

    African Journals Online (AJOL)

    [SATLC- Initiative] Uses of SATL & multiple intelligences [MI] for secondary and tertiary levels. Part-I: benzene structure activity. Abstract PDF · Vol 5, No 1 (2015) - Articles Systemic assessment [SA] as a tool to assess student achievements in inorganic chemistry Part-I: sodium chemistry. Abstract PDF. ISSN: 2227-5835.

  19. Author Details

    African Journals Online (AJOL)

    Pandey, Brajesh. Vol 2, No 8 (2010) - Articles Magnetic structure of Fe-Fe oxide nanoparticles made by electrodeposition. Abstract PDF · Vol 2, No 8 (2010) - Articles Mössbauer and magnetization studies of nanosize chromium ferrite. Abstract PDF · Vol 2, No 8 (2010) - Articles Prominent occurrence of iron oxides at KTB ...

  20. Author Details

    African Journals Online (AJOL)

    Hurko, IA. Vol 16, No 2 (2015) - Articles The population structure of Ukraine in relation to the phenylthiocarbamide sensitivity. Abstract PDF. ISSN: 1110-8630. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions ...

  1. Author Details

    African Journals Online (AJOL)

    Ilkhani, AR. Vol 38, No 3 (2012) - Articles Comparison of Chemical Nano Structure, Rheological and Mechanical Properties of Long Oil Alkyd Resin Synthesized using Polybasic acids Catalyst Abstract PDF. ISSN: 2507-7961. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  2. Author Details

    African Journals Online (AJOL)

    Childress, Brooks. Vol 82, No 2 (2011) - Articles Lesser Flamingo Phoeniconaias minor as a nomadic species in African shallow alkaline lakes and pans: genetic structure and future perspectives. Abstract. ISSN: 0030-6525. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  3. Author Details

    African Journals Online (AJOL)

    Ndungu, PG. Vol 68 (2015) - Articles Multiwalled Carbon Nanotube-titania Nanocomposites: Understanding Nano-Structural Parameters and Functionality in Dye-sensitized Solar Cells Abstract PDF. ISSN: 0379-4350. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's ...

  4. Author Details

    African Journals Online (AJOL)

    Simoyi, R. Vol 68 (2015) - Articles Multiwalled Carbon Nanotube-titania Nanocomposites: Understanding Nano-Structural Parameters and Functionality in Dye-sensitized Solar Cells Abstract PDF. ISSN: 0379-4350. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's ...

  5. Author Details

    African Journals Online (AJOL)

    Cherry, M.I.. Vol 29, No 1 (1994) - Articles Phylogenetic relationships and call structure in four African bufonid species. Abstract PDF · Vol 30, No 3 (1995) - Articles Anuran distribution, diversity and conservation in South Africa, Lesotho and Swaziland Abstract PDF · Vol 36, No 2 (2001) - Articles Territoriality and breeding ...

  6. Author Details

    African Journals Online (AJOL)

    Kiszka, J. Vol 32, No 3 (2010) - Articles Structure of a toothed cetacean community around a tropical island (Mayotte, Mozambique Channel) Abstract · Vol 33, No 2 (2011) - Articles Short Communication Observations of individual humpback whales utilising multiple migratory destinations in the south-western Indian Ocean

  7. Author Details

    African Journals Online (AJOL)

    Conradie, M M. Vol 61 (2008) - Articles Thienyl-containing β-Diketones: Synthesis, Characterization, Crystal Structure and Keto-enol Kinetics Abstract PDF. ISSN: 0379-4350. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

  8. Author Details

    African Journals Online (AJOL)

    Studies on the environmental implications of ants (Hymenoptera: formicidae) associated with two synanthropic environments in Awka, Nigeria Abstract · Vol 5, No 3 (2008) - Articles The effect of land use on the community structure distribution and abundance of ground beetles (insecta: coleoptera) in a guinea savanna in ...

  9. Author Details

    African Journals Online (AJOL)

    Larsson, J. Vol 9, No 2 (2010) - Articles Population Genetic Structure and Connectivity of the Abundant Sea Urchin, Diadema setosum around Unguja Island (Zanzibar) Abstract PDF. ISSN: 0856-860X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

  10. Author Details

    African Journals Online (AJOL)

    Kasam, S. Vol 3, No 4 (2015) - Articles Structural Studies of BaTiO3 Ferroelectric Material Prepared by Green Chemistry (Sol-gel) Method Abstract PDF. ISSN: 2305-3372. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms ...

  11. Author Details

    African Journals Online (AJOL)

    Owen-Smith, Norman. Vol 7, No 1 (1972) - Articles Territoriality: the example of the White Rhinoceros Abstract PDF · Vol 31, No 3 (1996) - Articles Abundance and guild structure of grasshoppers (Orthoptera: Acridoidea) in communally grazed and protected savanna. Abstract PDF. ISSN: 2224-073X. AJOL African Journals ...

  12. Author Details

    African Journals Online (AJOL)

    Faleyimu, OI. Vol 12, No 2 (2012) - Articles Assessment of Vegetation Structural Diversity and Similarity Index of IITA Forest Reserve in Ibadan, Oyo State, Nigeria Abstract PDF · Vol 13, No 1 (2013) - Articles Effects of Increasing Aqueous Root Extract of Moringa oleifera on Sperm Production of Albino Rats. Abstract PDF.

  13. Author Details

    African Journals Online (AJOL)

    Lawal, M. Vol 18, No 1 (2010) - Articles Biochemical and Haematological Indices of Weanly Albino Rats Fed Millet and Maize Based Complementary Weaning Food Abstract PDF · Vol 18, No 2 (2010) - Articles Secondary Structures Associated With Alkaline Transition of Horse Heart Ferricytochrome C: An FTIR Study

  14. Author Details

    African Journals Online (AJOL)

    Coker, AO. Vol 9, No 3 (2011) - Articles Psychiatric Psychosocial Rebilibation in Nigeria; What Needs to be Done Abstract · Vol 11, No 1 (2013) - Articles The Relationship Between Family Structure and Psychopathology Among Adolescents and Young Adults in Lagos, South-Western Nigeria Abstract. ISSN: 0189-1774.

  15. Author Details

    African Journals Online (AJOL)

    Vol 11, No 1 (2012) - Articles The effect of ambient temperature and solar panel's surface temperature on output performance of solar power system. Abstract · Vol 12, No 2 (2013) - Articles Fabrication, structural and optical characterizations of thermally evaporated Cu2SnS3 thin films. Abstract · Vol 13, No 2 (2014) - Articles

  16. Author Details

    African Journals Online (AJOL)

    ... mesomelas Schreber, 1778 (Carnivora: Canidae), in Zimbabwe Abstract · Vol 38, No 1 (2003) - Articles Age determination in jackals (Canis adustus Sundevall, 1846, and Canis mesomelas Schreber, 1778; Carnivora: Canidae) with reference to the age structure and breeding patterns of jackal populations in Zimbabwe

  17. Author Details

    African Journals Online (AJOL)

    Dollah, N.A.. Vol 9, No 3S (2017): Special Issue - Articles Inflatable structure for aerospace application: Historical perspective and future outlook. Abstract PDF. ISSN: 1112-9867. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners ...

  18. Author Details

    African Journals Online (AJOL)

    Alhawari, A.R.H.. Vol 9, No 3S (2017): Special Issue - Articles Investigate of wave absorption performance for oil palm frond and empty fruit bunch at 5.8 GHz. Abstract PDF · Vol 9, No 3S (2017): Special Issue - Articles UHR RFID ring resonator-based tag antenna with photonic bandgap structure for metallic objects

  19. Author Details

    African Journals Online (AJOL)

    Bouarfa, H. Vol 10, No 1 (2000) - Articles L'Entreprise virtuelle : dimension ou structure organisationnelle. Abstract. ISSN: 1111-0015. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

  20. Author Details

    African Journals Online (AJOL)

    Henriksson, O. Vol 9, No 2 (2010) - Articles Population Genetic Structure and Connectivity of the Abundant Sea Urchin, Diadema setosum around Unguja Island (Zanzibar) Abstract PDF. ISSN: 0856-860X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about ...

  1. Author Details

    African Journals Online (AJOL)

    Dewu, BBM. Vol 19, No 2 (2007) - Articles Soil Radon In The Nigerian Younger Granites Abstract PDF · Vol 23, No 1 (2012) - Articles Detection and characterization of near surface structures using seismic refraction around Shika, Nigeria. Abstract. ISSN: 1595-0611. AJOL African Journals Online. HOW TO USE AJOL.

  2. Author Details

    African Journals Online (AJOL)

    Saad, M.R.. Vol 9, No 3S (2017): Special Issue - Articles Inflatable structure for aerospace application: Historical perspective and future outlook. Abstract PDF · Vol 9, No 3S (2017): Special Issue - Articles New design algorithm and reliability testing of solar powered near-space flight vehicle for defense and security

  3. Author Details

    African Journals Online (AJOL)

    ... Vol 66 (2013) - Articles A Structural Investigation of the D2O Solvated, Acetone Solvated and Nonsolvated 1,4-Diazabicyclo[2.2.2]octane Complexes of the Half Sandwich Moiety [(η 5-C5H5)(CO)2Fe] Abstract PDF · Vol 65 (2012) - Articles Heterogenization of Some PNP Ligands for the Oligomerization of Ethylene

  4. Author Details

    African Journals Online (AJOL)

    Omale, A. Vol 10, No 2 (2013) - Articles A Situational Analysis of Priority Disaster Hazards in Uganda: Findings from a Hazard and Vulnerability Analysis Abstract · Vol 10, No 2 (2013) - Articles A Descriptive Analysis of the Institutional Frameworks for Disaster Management in Uganda: Structures, Functions and Gaps Abstract.

  5. Author Details

    African Journals Online (AJOL)

    Kabagambe, G. Vol 10, No 2 (2013) - Articles A Situational Analysis of Priority Disaster Hazards in Uganda: Findings from a Hazard and Vulnerability Analysis Abstract · Vol 10, No 2 (2013) - Articles A Descriptive Analysis of the Institutional Frameworks for Disaster Management in Uganda: Structures, Functions and Gaps

  6. Author Details

    African Journals Online (AJOL)

    Edwards, J.K.. Vol 93, No 10 (2016): Supplement - Articles Editorial: Structured operational research and training in the public health sector: the Kenyan experience. Abstract PDF · Vol 93, No 10 (2016): Supplement - Articles Trends of reported outpatient malaria cases to assess the Test, Treat and Track (T3) policy in Kenya

  7. Author Details

    African Journals Online (AJOL)

    Fetene, M. Vol 12, No 1 (2013) - Articles Stand structure, growth and biomass of Arundinaria alpina (highland bamboo) along topographic gradient in the Choke Mountain, northwestern Ethiopia Abstract. ISSN: 1819-8678. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors ...

  8. Author Details

    African Journals Online (AJOL)

    PCBM/Yb/Al fabriquée en atmosphère ambiante. Abstract · Vol 17, No 1 (2015) - Articles Analysis of the temporal structure of the daily rainfall observed at upper Oueme valley catchment in northern of Benin (west Africa) during 1999-2012.

  9. Author Details

    African Journals Online (AJOL)

    Mligo, C. Vol 73, No 1 (2011) - Articles The effect of anthropogenic disturbances on population structure and regeneration of Scorodophloeus fischeri and Manilkara sulcata in coastal forests of Tanzania Abstract. ISSN: 2070-2639. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  10. Author Details

    African Journals Online (AJOL)

    Essien, ES. Vol 10, No 1 (2007) - Articles Einstein's Relativity Theory and the structure of the universe. Abstract. ISSN: 1119-443X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL ...

  11. Author Details

    African Journals Online (AJOL)

    Cultural Comparison Of Structure And Strength Abstract. ISSN: 1596-8308. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of ...

  12. Author Details

    African Journals Online (AJOL)

    Palygorskite Hybridized Carbon Nanocomposite as a High-Performance Electrocatalyst Support for Formic Acid Oxidation Abstract PDF · Vol 61 (2008) - Articles Performance and Structure of LiNi0.5Mn1.5O4 Prepared from Various Ni Precursors for Lithium Ion Batteries Abstract PDF · Vol 65 (2012) - Articles Highly Active ...

  13. Author Details

    African Journals Online (AJOL)

    On The Structure of The Inverse of a Linear Constant Multivariable System ... Performance Assessment of a Class of Industrial Fans With Substantial Process Variability for On-Condition Monitoring and Contol System Design ... A Deterministic Approach to Noise Attenuation in Oil and Gas Seismic Data Acquisition Abstract.

  14. Author Details

    African Journals Online (AJOL)

    Obi, J.C.. Vol 11, No 1 (2012) - Articles Prognostic diagnosis of pelvic inflammatory disease utilizing logical fuzzy classifier expert structure. Abstract · Vol 11, No 1 (2012) - Articles Fuzzy neural approach for colon cancer prediction. Abstract · Vol 12, No 1 (2013) - Articles Mobile computing: an approach towards paperless ...

  15. Author Details

    African Journals Online (AJOL)

    Tammal, M. Vol 9, No 1 (2013) - Articles Caractérisation des émergences du piémont de jbel Ayachi : contrôle structural et impact du changement climatique. Abstract PDF. ISSN: 1813-548X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  16. Author Details

    African Journals Online (AJOL)

    Meridekh, A. Vol 9, No 1 (2013) - Articles Caractérisation des émergences du piémont de jbel Ayachi : contrôle structural et impact du changement climatique. Abstract PDF. ISSN: 1813-548X. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

  17. Comparison between enhanced MALDI in-source decay by ammonium persulfate and N- or C-terminal derivatization methods for detailed peptide structure determination.

    Science.gov (United States)

    Horvatić, Anita; Dodig, Ivana; Vuletić, Tomislav; Pavoković, Dubravko; Hameršak, Zdenko; Butorac, Ana; Cindrić, Mario

    2013-04-16

    Amino acid sequencing and more detailed structure elucidation analysis of peptides and small proteins is a very difficult task even if state-of-the-art mass spectrometry (MS) is employed. To make this task easier, chemical derivatization methods of the N terminus with 4-sulfophenyl-isothiocyanate (SPITC) or the C terminus with 2-methoxy-4,5-dihydro-1H-imidazole (Lys-tag) can enhance peptide fragmentation or fragment ionizability, via proton mobility/localization mechanisms making tandem MS (MS(2)) spectra more informative and less demanding for structural interpretation. Observed disadvantages related to both derivatization methods are sample- and time-consuming procedures and the increased number of reaction byproducts. A novel, sulfate radical in-source formation method of matrix-assisted laser desorption ionization (MALDI) MS based on chemically enhanced in-source decay (ISD) can be accomplished by simple addition of ammonium persulfate (APS) in the matrix solution. This method enables effective decomposition of peptide ions already in the first stage of MS analysis where a large number of fragment ions are produced. The resultant MALDI-ISD mass spectra (MS after APS → MALDI-ISD MS) are almost equivalent to conventional, collision-induced dissociation (CID) MS(2) spectra. These fragment ions are further subjected to the second stage of the MS, and consequently, MS(3) spectra are produced, which makes the sequence analysis more informative and complete (CID MS(2) is thus equivalent to CID MS(3)). Multiply stage MS after APS addition showed enhanced sensitivity, resolution, and mass accuracy compared to peptide derivatization (SPITC and Lys-tag) or conventional MS and MS(2) analyses and offered more detailed insight into peptide structure.

  18. Kinetic energy budget details

    Indian Academy of Sciences (India)

    Abstract. This paper presents the detailed turbulent kinetic energy budget and higher order statistics of flow behind a surface-mounted rib with and without superimposed acoustic excitation. Pattern recognition technique is used to determine the large-scale structure magnitude. It is observed that most of the turbulence ...

  19. Self-reported ballet classes undertaken at age 10-12 years and hip bone mineral density in later life.

    Science.gov (United States)

    Khan, K M; Bennell, K L; Hopper, J L; Flicker, L; Nowson, C A; Sherwin, A J; Crichton, K J; Harcourt, P R; Wark, J D

    1998-01-01

    The major effect of weightbearing exercise on adult bone mass may be exerted during childhood. We examined the relationship between reported hours of ballet classes per week undertaken as a child and adult bone mineral density (BMD) at the hip, spine, and forearm. We performed a retrospective cohort study in 99 female retired dancers (mean age 51 years, SD 14 years) and 99 normal controls, derived from a twin study, matched hierarchically for age, height, weight and menopausal status. Starting age of ballet was recalled and weekly hours of ballet as a child was self-reported on two occasions. BMD was measured using dualenergy X-ray absorptiometry and reported as a Z-score. Self-reported hours of ballet class undertaken per week at each age between 10 and 12 years was positively associated with a difference in BMD between dancers and controls at both the femoral neck site (beta = 0.73, p = 0.001) and the total hip site (beta = 0.55, p ballet), measures of menstrual disturbance (age of menarche, history of irregular menses), dietary history (calcium intake as a child, adolescent or adult) or lifestyle factors (lifetime smoking, lifetime alcohol). Although starting age of ballet was negatively associated with weight-adjusted within-pair hip BMD difference, it was no longer associated after adjustment for weekly hours of ballet. There was no relationship between hours of ballet undertaken as a child and differences in BMD at the lumbar spine or upper limb, at any age. Our data suggest that classical ballet classes undertaken between the ages of 10 and 12 years are independently and positively associated with a difference in hip BMD between dancers and controls. The findings are consistent with the hypothesis that this age range identifies a stage of development when the proximal femur is particularly responsive to weightbearing exercise.

  20. DETAILS OF OPERATIONS PERFORMED BY THE REMOTE CONTROL ROBOT (CONCEPT TO THE HORIZONTAL FUEL CHANNEL DURING DECOMMISSIONING PHASE OF NUCLEAR REACTOR CALANDRIA STRUCTURE. PART I: OUTSIDE OPERATIONS

    Directory of Open Access Journals (Sweden)

    Constantin POPESCU

    2017-05-01

    Full Text Available The authors contribution to this paper is to present a concept solution of a remote control robot (RCR used for the horizontal fuel channels pressure tube decommissioning in the CANDU nuclear reactor. The authors highlight in this paper, few details of geometry, operations, constraints by kinematics and dynamics of the robot movement outside of the reactor fuel channel. Outside operations performed has as the main steps of dismantling process the followings: positioning front of Calandria structure at the fuel channel to be decommissioned, coupling and locking to the End Fitting (EF, sorting and storage extracted items in the safe container. All steps are performed in automatic mode. The remote control robot (RCR represents a safety system controlled by sensors and has the capability to analyze any error registered and decide next activities or abort the outside decommissioning procedure in case of any risk rise in order to ensure the environmental and workers protection.

  1. Revealing the Detailed Structure of the Galactic Core-Collapse Supernova Remnant G292.0+1.8 with X-Ray Mapping

    Science.gov (United States)

    Bhalerao, Jayant; Park, Sangwook; Schenck, Andrew

    2017-01-01

    We present our results on the adaptive-mesh mapping of the chemical composition and thermodynamic parameters of the Galactic core-collapse supernova remnant G292.0+1.8 using our deep Chandra observation. Our maps cover the entire supernova remnant and show the detailed spatial distributions of the metal-rich ejecta, circumstellar medium, and the X-ray pulsar wind nebula-dominated regions. Our results suggest radial and azimuthal variations in the ejecta composition and the thermodynamic parameters, underscoring the rich and complex nature of this text book type supernova remnant. Combining our results from this study and our previous work on the ejecta radial velocity distribution (derived from our Chandra HETG data), we discuss the three dimensional structure of the remnant. Some implications on the nature of the progenitor star and explosion scenarios are discussed.

  2. Formation routes and structural details of the CaF1 layer on Si(111) from high-resolution noncontact atomic force microscopy data

    Science.gov (United States)

    Rahe, Philipp; Smith, Emily F.; Wollschläger, Joachim; Moriarty, Philip J.

    2018-03-01

    We investigate the CaF1/Si (111 ) interface using a combination of high-resolution scanning tunneling and noncontact atomic force microscopy operated at cryogenic temperature as well as x-ray photoelectron spectroscopy. Submonolayer CaF1 films grown at substrate temperatures between 550 and 600 ∘C on Si (111 ) surfaces reveal the existence of two island types that are distinguished by their edge topology, nucleation position, measured height, and inner defect structure. Our data suggest a growth model where the two island types are the result of two reaction pathways during CaF1 interface formation. A key difference between these two pathways is identified to arise from the excess species during the growth process, which can be either fluorine or silicon. Structural details as a result of this difference are identified by means of high-resolution noncontact atomic force microscopy and add insights into the growth mode of this heteroepitaxial insulator-on-semiconductor system.

  3. Evaluation of Efficiency Activities in the Industrial Sector Undertaken in Response to Greenhouse Gas Emission Reduction Targets

    Energy Technology Data Exchange (ETDEWEB)

    Price, Lynn; de la Rue du Can, Stephane; Lu, Hongyou; Horvath, Arpad

    2010-05-21

    The 2006 California Global Warming Solutions Act calls for reducing greenhouse gas (GHG) emissions to 1990 levels by 2020. Meeting this target will require action from all sectors of the California economy, including industry. The industrial sector consumes 25% of the energy used and emits 28% of the carbon dioxide (CO{sub 2}) produced in the state. Many countries around the world have national-level GHG reduction or energy-efficiency targets, and comprehensive programs focused on implementation of energy efficiency and GHG emissions mitigation measures in the industrial sector are essential for achieving their goals. A combination of targets and industry-focused supporting programs has led to significant investments in energy efficiency as well as reductions in GHG emissions within the industrial sectors in these countries. This project has identified program and policies that have effectively targeted the industrial sector in other countries to achieve real energy and CO{sub 2} savings. Programs in Ireland, France, The Netherlands, Denmark, and the UK were chosen for detailed review. Based on the international experience documented in this report, it is recommended that companies in California's industrial sector be engaged in a program to provide them with support to meet the requirements of AB32, The Global Warming Solution Act. As shown in this review, structured programs that engage industry, require members to evaluate their potential efficiency measures, plan how to meet efficiency or emissions reduction goals, and provide support in achieving the goals, can be quite effective at assisting companies to achieve energy efficiency levels beyond those that can be expected to be achieved autonomously.

  4. Investigation of detailed spatial structure of the Moscow urban heat island with application of the newest meteorological observations and regional climate modelling

    Science.gov (United States)

    Varentsov, Mikhail; Pavel, Konstantinov; Timofey, Samsonov

    2016-04-01

    During the last years, the network of metrological observation in Moscow megacity and its neighborhoods, forming the biggest urban agglomeration in Europe, was significantly extended. Several new weather stations and completely new dense network of air-quality monitoring appears during the last decade. In addition, several microwave meteorological profilers MTP 5, which are available to measure temperature at the heights from 0 to 1000 meters with 50-m resolution, were installed in the city and its surrounding. All these measurements allow revealing undiscovered features of Moscow urban climate and urban heat island (UHI). In our research, bases on this data, we covered several topics related to urban climatology: - Investigation of detailed spatial structure of Moscow UHI and its relationships with building features, such as land use and morphology of the street canyons, obtained by GIS-algorithms according (Samsonov et. al, 2015); - Investigation of three-dimensional structure of the UHI, including its vertical extend and influence on the stratification of the atmosphere, and three-dimensional structure of the urban heat island advection and urban heat plumes; - Application of the newest data for validation of the regional climate model COSMO-CLM, coupled with TEB urban scheme (Masson, 2000; Trusilova et. al., 2013), launched for Moscow region with 1-km spatial resolution. References: 1. Masson V. A. Physically-Based Scheme for the Urban Energy Budget in Atmospheric models. Bound. Layer Meteor. 2000. V. 94 (3). P. 357-397. 2. Trusilova K., Früh B., Brienen S., Walter A., Masson V., Pigeon G., Becker P. Implementation of an Urban Parameterization Scheme into the Regional Climate Model COSMO-CLM. J. Appl. Meteor. Climatol. V. 52. P. 2296-2311. 3. Samsonov T.E., Konstantinov P.I., Varentsov M.I. Object-oriented approach to urban canyon analysis and its applications in meteorological modeling. Urban Climate. 2015. Vol. 13. P. 122-139.

  5. Main: Clone Detail [KOME

    Lifescience Database Archive (English)

    Full Text Available Clone Detail Mapping Pseudomolecule data detail Detail information Mapping to the T...IGR japonica Pseudomolecules kome_mapping_pseudomolecule_data_detail.zip kome_mapping_pseudomolecule_data_detail ...

  6. Detailed magnetic and structural analysis mapping a robust magnetic C4 dome in Sr1 -xNaxFe2As2

    Science.gov (United States)

    Taddei, K. M.; Allred, J. M.; Bugaris, D. E.; Lapidus, S.; Krogstad, M. J.; Stadel, R.; Claus, H.; Chung, D. Y.; Kanatzidis, M. G.; Rosenkranz, S.; Osborn, R.; Chmaissem, O.

    2016-04-01

    The recently discovered C4 tetragonal magnetic phase in hole-doped members of the iron-based superconductors provides insights into the origin of unconventional superconductivity. Previously observed in Ba1-xNaxFe2As2 (with A = K, Na), the C4 magnetic phase exists within the well-studied C2 spin-density-wave dome, arising just before the complete suppression of antiferromagnetic order but after the onset of superconductivity. Here, we present detailed x-ray and neutron diffraction studies of Sr1-xNaxFe2As2 (0.10 ≤x ≤0.60 ) to determine their structural evolution and the extent of the C4 phase. Spanning Δ x ˜0.14 in composition, the C4 phase is found to extend over a larger range of compositions, and to exhibit a significantly higher transition temperature, Tr˜65 K, than in either of the other systems in which it has been observed. The onset of this phase is seen near a composition (x ˜0.30 ) where the bonding angles of the Fe2As2 layers approach the perfect 109 .46∘ tetrahedral angle. We discuss the possible role of this return to a higher symmetry environment for the magnetic iron site in triggering the magnetic reorientation and the coupled reentrance to the tetragonal structure. Finally, we present a phase diagram, complete with the C4 phase, and use its observation in a third hole-doped 122 system to suggest the universality of this phase.

  7. Determination of Cell Doubling Times from the Return-on-Investment Time of Photosynthetic Vesicles Based on Atomic Detail Structural Models.

    Science.gov (United States)

    Hitchcock, Andrew; Hunter, C Neil; Sener, Melih

    2017-04-20

    Cell doubling times of the purple bacterium Rhodobacter sphaeroides during photosynthetic growth are determined experimentally and computationally as a function of illumination. For this purpose, energy conversion processes in an intracytoplasmic membrane vesicle, the chromatophore, are described based on an atomic detail structural model. The cell doubling time and its illumination dependence are computed in terms of the return-on-investment (ROI) time of the chromatophore, determined computationally from the ATP production rate, and the mass ratio of chromatophores in the cell, determined experimentally from whole cell absorbance spectra. The ROI time is defined as the time it takes to produce enough ATP to pay for the construction of another chromatophore. The ROI time of the low light-growth chromatophore is 4.5-2.6 h for a typical illumination range of 10-100 μmol photons m -2 s -1 , respectively, with corresponding cell doubling times of 8.2-3.9 h. When energy expenditure is considered as a currency, the benefit-to-cost ratio computed for the chromatophore as an energy harvesting device is 2-8 times greater than for photovoltaic and fossil fuel-based energy solutions and the corresponding ROI times are approximately 3-4 orders of magnitude shorter for the chromatophore than for synthetic systems.

  8. The effect of creatinine on the prognosis of patients with acute myocardial infarction undertaken emergency-PCI

    International Nuclear Information System (INIS)

    Chen Hui; Jia Sanqing; Yan Songbiao; Wang Lei; Li Hongwei; Su Shuhong; Gao Hongli; Wang Lu; Han Wei; Shen Luhua

    2006-01-01

    Objective: To observe the effect of creatinine (Cr) on the short and long term prognosis of patients with acute myocardial infarction undertaken emergent-PCI. Methods: A total of 351 consecutive acute myocardial infarction patients from Apr 2000 to Jan 2004 who undertaken emergency-PCI were divided into two groups according to the Cr value: group 1(n=327, Cr<133 μmol/L) and group 2(n=24, Cr≥133 μmol/L); with average age of (63±11) years, average in-hospital days (15.3±8.1) days, and average follow-up period (27.2±13.3) months (6-51 months); for analyzing the effect of Cr on short-term and long-term prognosis. Results: After comparing with those of group 1, the age was higher (P<0.01) in group 2, the levels of total cholesterol (TC, P<0.05) and low density lipoprotein (LDL, P<0.05) were lower in group 2, the levels of C-reactive protein (CRP, P<0.05), Killip classification (P<0.01) and diseased vessel numbers (P<0.05)were higher in group 2. The correlative analysis showed that Cr was significantly linked with these following factors: sex(correlation coefficient -0.16, P<0.01), age(correlation coefficient 0.203, P<0.001), TC ( correlation coefficient-0.134, P<0.05), LDL (correlation coefficient -0.12, P<0.05), hs-CRP (correlation coefficient 0.246, P<0.01), Killip (correlation coefficient 0.142, P<0.01), diseased vessel numbers (correlation coefficient 0.137, P<0.05). Conclusions: The level of Cr is significantly correlated with TC, LDL, CRP, Killip and diseased vessel numbers. It is a very good index to reflect heart function and diseased vessel numbers, but it appears to be not related to the short-term and long-term prognosis. (authors)

  9. Secondary data analyses of dietary surveys undertaken in South Africa to determine usual food consumption of the population.

    Science.gov (United States)

    Steyn, Nelia Patricia; Nel, Johanna Helena; Casey, Annette

    2003-10-01

    The primary objective of this study was to generate a reference table of food items and average amounts of these items consumed by South Africans, for the Department of Health. The reference table was required to be representative of foods and beverages eaten frequently by children and adults from all age and ethnic groups in order for the Department of Health to test for contaminants in these foods. The National Food Consumption Survey (NFCS) served as a framework for compiling data on children since this was a national representative survey of 1-9-year-old children undertaken in South Africa in 1999. However, there has never been a national dietary survey on adults in South Africa. Consequently the data had to be extrapolated from existing isolated surveys on adults. Secondary data analysis was conducted on existing dietary databases (raw data) obtained from surveys undertaken on adults in South Africa between 1983 and 2000. Available datasets were regional and independent, and were not individually representative of the South African diet. It was therefore necessary to use different statistical methods, including factor analyses, weighting and correlations, to generate ethnic and geographic representative data for adults. Two methods were used: Method 1, which corresponded with results of the NFCS (over-sampled for low socio-economic status), and Method 2, which was based on ethnic proportions of the population. The secondary data analyses generated food items most commonly consumed by the South African adult population (Method 1) in descending frequency of usage and average (mean) amount per day: maize porridge (78%/848 g), white sugar (77%/27 g), tea (68%/456 g), brown bread (55%/165 g), white bread (28%/163 g), non-dairy creamer (25%/6 g), brick margarine (21%/19 g), chicken meat (19%/111 g), full-cream milk (19%/204 g) and green leaves (17%/182 g). In 6-9-year-olds, maize porridge (72%/426 g), sugar (76%/23 g), tea (51%/258 g), full-cream milk (35%/171 g

  10. A comparison of nursing tasks undertaken by regulated nurses and nursing support workers: a work sampling study.

    Science.gov (United States)

    Roche, Michael A; Friedman, Sarah; Duffield, Christine; Twigg, Diane E; Cook, Rebecca

    2017-06-01

    The aim of this study was to determine which tasks unregulated nursing support staff spend their work time undertaking and to determine differences between the work undertaken by licensed/regulated nurses on units which have nursing support workers and those on units which do not. Acute hospital nursing teams often include nursing support staff; little is known about what kinds of tasks these unregulated support workers do and how it affects the work tasks of their licensed/regulated team members. Cross-sectional analysis of nurse work sampling data. Data collection took place between March-October 2013. The proportion of time spent on 25 work activities by nursing support staff and licensed/regulated nursing staff was compared. Logistic regression models estimated whether nursing support staff or licensed/regulated nurses were more likely to conduct direct and indirect patient care tasks and whether licensed/regulated nurses on units with nursing support staff were more likely to conduct direct or indirect tasks compared with those on units without nursing support workers. Nursing support staff spent the majority of their time engaged in direct care tasks, e.g. admission and assessment, hygiene and mobility. Although licensed/regulated nurses were less likely to undertake direct care tasks compared with support workers, those who worked on units with support workers undertook more direct care compared with those who worked on units without support workers. Nursing support workers were given tasks that required substantial amounts of patient interaction. These staff may be associated with an increase in direct care tasks for licensed/regulated nurses, who may duplicate the direct care done by nursing support workers. © 2016 John Wiley & Sons Ltd.

  11. Heat capacity effects associated with the hydrophobic hydration and interaction of simple solutes: a detailed structural and energetical analysis based on molecular dynamics simulations.

    Science.gov (United States)

    Paschek, Dietmar

    2004-06-08

    We examine the SPCE [H. J. C. Berendsen et al., J. Chem. Phys. 91, 6269 (1987)] and TIP5P [M. W. Mahoney and W. L. Jorgensen, J. Chem. Phys 112, 8910 (2000)] water models using a temperature series of molecular-dynamics simulations in order to study heat-capacity effects associated with the hydrophobic hydration and interaction of xenon particles. The temperature interval between 275 and 375 K along the 0.1-MPa isobar is studied. For all investigated models and state points we calculate the excess chemical potential for xenon employing the Widom particle insertion technique. The solvation enthalpy and excess heat capacity is obtained from the temperature dependence of the chemical potentials and, alternatively, directly by Ewald summation, as well as a reaction field based method. All three methods provide consistent results. In addition, the reaction field technique allows a separation of the solvation enthalpy into solute/solvent and solvent/solvent parts. We find that the solvent/solvent contribution to the excess heat capacity is dominating, being about one order of magnitude larger than the solute/solvent part. This observation is attributed to the enlarged heat capacity of the water molecules in the hydration shell. A detailed spatial analysis of the heat capacity of the water molecules around a pair of xenon particles at different separations reveals that even more enhanced heat capacity of the water located in the bisector plane between two adjacent xenon atoms is responsible for the maximum of the heat capacity found for the desolvation barrier distance, recently reported by Shimizu and Chan [J. Am. Chem. Soc. 123, 2083 (2001)]. The about 60% enlarged heat capacity of water in the concave part of the joint xenon-xenon hydration shell is the result of a counterplay of strengthened hydrogen bonds and an enhanced breaking of hydrogen bonds with increasing temperature. Differences between the two models with respect to the heat capacity in the xenon

  12. Basinal Structure Of Yola Arm Of The Upper Benue Trough Nigeria ...

    African Journals Online (AJOL)

    Aeromagnetic data interpretation of the Yola arm of the Upper Benue Trough has previously been carried out. However, no detail modeling of the Crustal Structures has been undertaken. Two composite reduced Aeromagnetic maps on a scale of 1:250,000 were digitized and processed using computer techniques.

  13. Results of a paleomagnetic survey undertaken in the Damara mobile belt, South West Africa, with special reference to the magnetisation of the uraniferous pegmatitic granites

    International Nuclear Information System (INIS)

    Corner, B.; Henthorn, D.I.

    1978-10-01

    A project study, undertaken by the Geology Division of the AEB, on the correlation between airborne magnetic and radiometric data covering a portion of the Damara Mobile Belt in South West Africa, has revealed that all the known occurrences of uranium in late- to post-tectonic leucogranite (alaskite) of the Damara orogeny are associated with negative geomagnetic anomalies. Although the uranium occurrences themselves do not display marked geomagnetic anomalies, their immediate geological environment is characterised by the negative anomalies, which are semi-regional in extent. To investigate the origin of these anomalies, the Atomic Energy Board and the Geological Survey of South Africa undertook a palaeomagnetic study of the area. Oriented cores were taken from 31 sites in the mobile belt, 18 of which were selected within the negative magnetic zones, mostly in close association with known uraniferous alaskitic granites. Palaeomagnetic evidence suggests that the negative geomagnetic anomalies are associated with a remanent magnetisation, resulting from the Damara orogenic event, whose direction is removed from the earth's present field and which has affected rocks of the Nosib Group. Absence of this stable remanent direction in rocks stratigraphically overlying the Nosib Group accounts for the distinctive geomagnetic signature, in the form of negative anomalies, of the Nosib Group. It is this signature which can be used in airborne surveys to identify rocks of the Nosib Group outcropping, or of shallow suboutcrop, in anticlinal or dome-like structures. Since the uraniferous alaskites are mostly confined stratigraphically to the Nosib Group, the negative geomagnetic anomalies form an important prospecting criterion as they may be used to delineate target areas for further exploration in areas covered by sand, scree and duricrust deposits [af

  14. Deuterated nucleotides as chemical probes of RNA structure: a detailed protocol for the enzymatic synthesis of a complete set of nucleotides specifically deuterated at ribose carbons

    Directory of Open Access Journals (Sweden)

    Robert N. Azad

    2015-05-01

    Full Text Available We describe here a detailed protocol for the synthesis of ribonucleotides specifically deuterated at each ribose carbon atom. We synthesized 20 specifically deuterated ribonucleotides: ATP, CTP, GTP, and UTP, each of which contained one of five deuterated riboses (either 1′-D, 2″-D, 3′-D, 4′-D, or 5′,5″-D2. Our synthetic approach is inspired by the pioneering work of Tolbert and Williamson, who developed a method for the convenient one-pot enzymatic synthesis of nucleotides (Tolbert, T. J. and Williamson, J. R. (1996 J. Am. Chem. Soc. 118, 7929–7940. Our protocol consists of a comprehensive list of required chemical and enzymatic reagents and equipment, detailed procedures for enzymatic assays and nucleotide synthesis, and chromatographic procedures for purification of deuterated nucleotides. As an example of the utility of specifically deuterated nucleotides, we used them to synthesize specifically deuterated sarcin/ricin loop (SRL RNA and measured the deuterium kinetic isotope effect on hydroxyl radical cleavage of the SRL.

  15. Raman Spectroscopy Adds Complementary Detail to the High-Resolution X-Ray Crystal Structure of Photosynthetic PsbP from Spinacia oleracea

    Czech Academy of Sciences Publication Activity Database

    Kopecký, V. Jr.; Kohoutová, Jaroslava; Lapkouski, Mikalai; Hofbauerová, Kateřina; Sovová, Žofie; Ettrichová, Olga; Gonzalez-Perez, S.; Dulebo, A.; Kaftan, D.; Kutá-Smatanová, Ivana; Reveuelta, J. L.; Arellano, J. B.; Carey, J.; Ettrich, Rüdiger

    2012-01-01

    Roč. 7, č. 10 (2012), s. 46694-46694 E-ISSN 1932-6203 Institutional research plan: CEZ:AV0Z60870520; CEZ:AV0Z50200510 Keywords : secondary-structure-analysis * oxygen-evolving complexO * plant photosystem-II * moleculars-dynamics * assisted crystallography * angstrom resolution * protein-structure * amide-I * conformation * biomolecules Subject RIV: BO - Biophysics; EE - Microbiology, Virology (MBU-M) Impact factor: 3.730, year: 2012

  16. Infrapatellar plica of the knee: Revisited with MR arthrographies undertaken in the knee flexion position mimicking operative arthroscopic posture

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Young Han; Song, Ho-Taek; Kim, Sungjun [Department of Radiology and Research Institute of Radiological Science, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul 120-752 (Korea, Republic of); Kim, Sung-Jae [Department of Orthopedic Surgery and Arthroscopic Surgery Unit, Yonsei University College of Medicine (Korea, Republic of); Suh, Jin-Suck, E-mail: jss@yuhs.ac [Department of Radiology and Research Institute of Radiological Science, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul 120-752 (Korea, Republic of)

    2012-10-15

    Purpose: To describe the appearance of the infrapatellar plica (IPP) on magnetic resonance arthrography (MRA) taken in 70° knee flexion, corresponding to the arthroscopic posture. Materials and methods: Twenty-two patients (23 knee joints) who underwent MRA with 70° knee flexion were enrolled. All patients underwent MRA with 70° knee flexion to simulate operative arthroscopy. The images included fat-suppressed T1-weighted spin echo axial, sagittal, and coronal images. The visualization and morphology of the IPP were retrospectively assessed by two musculoskeletal radiologists. Results: The IPP was demonstrated in 78.3% (n = 18/23) and was best visualized on the sagittal section through the intercondylar notch. The IPP manifested as a linear hypointense structure with variable thicknesses. The intercondylar component was delineated clearly, arising from the anterior intercondylar notch in parallel with the ACL and curving gently downward to attach to the infrapatellar fat pad. On the other hand, the Hoffa's fat pad component was not depicted clearly. The morphology of the IPP was either a separate type (60.9%) or a split type (17.4%). Conclusion: The IPPs can be visualized with a high rate of detection and various morphologic appearances must be appreciated under the review of a flexed knee MRA.

  17. Crystal Structures of GII.10 and GII.12 Norovirus Protruding Domains in Complex with Histo-Blood Group Antigens Reveal Details for a Potential Site of Vulnerability

    Energy Technology Data Exchange (ETDEWEB)

    Hansman, Grant S.; Biertümpfel, Christian; Georgiev, Ivelin; McLellan, Jason S.; Chen, Lei; Zhou, Tongqing; Katayama, Kazuhiko; Kwong, Peter D. (NIH); (NIID-Japan)

    2011-10-10

    Noroviruses are the dominant cause of outbreaks of gastroenteritis worldwide, and interactions with human histo-blood group antigens (HBGAs) are thought to play a critical role in their entry mechanism. Structures of noroviruses from genogroups GI and GII in complex with HBGAs, however, reveal different modes of interaction. To gain insight into norovirus recognition of HBGAs, we determined crystal structures of norovirus protruding domains from two rarely detected GII genotypes, GII.10 and GII.12, alone and in complex with a panel of HBGAs, and analyzed structure-function implications related to conservation of the HBGA binding pocket. The GII.10- and GII.12-apo structures as well as the previously solved GII.4-apo structure resembled each other more closely than the GI.1-derived structure, and all three GII structures showed similar modes of HBGA recognition. The primary GII norovirus-HBGA interaction involved six hydrogen bonds between a terminal {alpha}fucose1-2 of the HBGAs and a dimeric capsid interface, which was composed of elements from two protruding subdomains. Norovirus interactions with other saccharide units of the HBGAs were variable and involved fewer hydrogen bonds. Sequence analysis revealed a site of GII norovirus sequence conservation to reside under the critical {alpha}fucose1-2 and to be one of the few patches of conserved residues on the outer virion-capsid surface. The site was smaller than that involved in full HBGA recognition, a consequence of variable recognition of peripheral saccharides. Despite this evasion tactic, the HBGA site of viral vulnerability may provide a viable target for small molecule- and antibody-mediated neutralization of GII norovirus.

  18. Why, and how, mixed methods research is undertaken in health services research in England: a mixed methods study

    Science.gov (United States)

    O'Cathain, Alicia; Murphy, Elizabeth; Nicholl, Jon

    2007-01-01

    Background Recently, there has been a surge of international interest in combining qualitative and quantitative methods in a single study – often called mixed methods research. It is timely to consider why and how mixed methods research is used in health services research (HSR). Methods Documentary analysis of proposals and reports of 75 mixed methods studies funded by a research commissioner of HSR in England between 1994 and 2004. Face-to-face semi-structured interviews with 20 researchers sampled from these studies. Results 18% (119/647) of HSR studies were classified as mixed methods research. In the documentation, comprehensiveness was the main driver for using mixed methods research, with researchers wanting to address a wider range of questions than quantitative methods alone would allow. Interviewees elaborated on this, identifying the need for qualitative research to engage with the complexity of health, health care interventions, and the environment in which studies took place. Motivations for adopting a mixed methods approach were not always based on the intrinsic value of mixed methods research for addressing the research question; they could be strategic, for example, to obtain funding. Mixed methods research was used in the context of evaluation, including randomised and non-randomised designs; survey and fieldwork exploratory studies; and instrument development. Studies drew on a limited number of methods – particularly surveys and individual interviews – but used methods in a wide range of roles. Conclusion Mixed methods research is common in HSR in the UK. Its use is driven by pragmatism rather than principle, motivated by the perceived deficit of quantitative methods alone to address the complexity of research in health care, as well as other more strategic gains. Methods are combined in a range of contexts, yet the emerging methodological contributions from HSR to the field of mixed methods research are currently limited to the single

  19. Structural details (kinks and non-alpha conformations) in transmembrane helices are intrahelically determined and can be predicted by sequence pattern descriptors.

    Science.gov (United States)

    Rigoutsos, Isidore; Riek, Peter; Graham, Robert M; Novotny, Jiri

    2003-08-01

    One of the promising methods of protein structure prediction involves the use of amino acid sequence-derived patterns. Here we report on the creation of non-degenerate motif descriptors derived through data mining of training sets of residues taken from the transmembrane-spanning segments of polytopic proteins. These residues correspond to short regions in which there is a deviation from the regular alpha-helical character (i.e. pi-helices, 3(10)-helices and kinks). A 'search engine' derived from these motif descriptors correctly identifies, and discriminates amongst instances of the above 'non-canonical' helical motifs contained in the SwissProt/TrEMBL database of protein primary structures. Our results suggest that deviations from alpha-helicity are encoded locally in sequence patterns only about 7-9 residues long and can be determined in silico directly from the amino acid sequence. Delineation of such variations in helical habit is critical to understanding the complex structure-function relationships of polytopic proteins and for drug discovery. The success of our current methodology foretells development of similar prediction tools capable of identifying other structural motifs from sequence alone. The method described here has been implemented and is available on the World Wide Web at http://cbcsrv.watson.ibm.com/Ttkw.html.

  20. Structural evaluation of the Main Steam Isolation Valve (MSIV) room under loads from the Pipe Rupture Hazard Analysis (PRHA) and the associated detailed design

    Energy Technology Data Exchange (ETDEWEB)

    Di Fonzo, M.G.; Quintero, F.; Moraleda, F.

    2015-07-01

    Currently Westinghouse Electric Spain develops part of the generic design of the new Nuclear Power Plants. The enclosure for which the Main Steam Line (MSL) and the Main Feed Water Line (MFWL) run must withstand the loads from pipes breaks (PRHA). The finned-floor and the wall adjacent to Main Control Room (MCR) are of principal concerns. The reason for that is due to under the finned-floor and on the other side of the wall there are several control systems necessary for the Safe Shutdown Condition. Starting from the basic design we proceed to evaluate structurally the finned-floor and the wall of the enclosure using the criteria stated in ACI-349-01. Several finite elements models and ANSYSTM macros were developed in order to evaluate the structural response under all of the load combinations. The results were used for the design of the structural components of the MSIV room and also for reinforcing the local zones where the supports are anchored. The final conclusion is that the enclosure design complies not only with the requirements of the structural integrity but also with the NRC, 10CFR Part 50, Appendix A, “General Design Criterion 4”. (Author)

  1. Details of regional particle deposition and airflow structures in a realistic model of human tracheobronchial airways: two-phase flow simulation.

    Science.gov (United States)

    Rahimi-Gorji, Mohammad; Gorji, Tahereh B; Gorji-Bandpy, Mofid

    2016-07-01

    In the present investigation, detailed two-phase flow modeling of airflow, transport and deposition of micro-particles (1-10µm) in a realistic tracheobronchial airway geometry based on CT scan images under various breathing conditions (i.e. 10-60l/min) was considered. Lagrangian particle tracking has been used to investigate the particle deposition patterns in a model comprising mouth up to generation G6 of tracheobronchial airways. The results demonstrated that during all breathing patterns, the maximum velocity change occurred in the narrow throat region (Larynx). Due to implementing a realistic geometry for simulations, many irregularities and bending deflections exist in the airways model. Thereby, at higher inhalation rates, these areas are prone to vortical effects which tend to entrap the inhaled particles. According to the results, deposition fraction has a direct relationship with particle aerodynamic diameter (for dp=1-10µm). Enhancing inhalation flow rate and particle size will largely increase the inertial force and consequently, more particle deposition is evident suggesting that inertial impaction is the dominant deposition mechanism in tracheobronchial airways. Copyright © 2016 Elsevier Ltd. All rights reserved.

  2. DETAILS OF OPERATIONS PERFORMED BY THE REMOTE CONTROL ROBOT (CONCEPT TO THE HORIZONTAL FUEL CHANNEL DURING DECOMMISSIONING PHASE OF NUCLEAR REACTOR CALANDRIA STRUCTURE. PART II: INSIDE OPERATIONS

    Directory of Open Access Journals (Sweden)

    Constantin POPESCU

    2017-05-01

    Full Text Available The authors contribution to this paper is to present a concept solution of a remote control robot (RCR used for decommissioning of the horizontal fuel channels pressure tube in the CANDU nuclear reactor. In this paper the authors highlight few details of geometry, operations, constraints by kinematics and dynamics of the robot movement inside of the reactor fuel channel. Inside operations performed has as the main steps of dismantling process the followings: unblock and extract the channel closure plug (from End Fitting - EF, unblock and extract the channel shield plug (from Lattice Tube - LT, cut the ends of the pressure tube, extract the pressure tube and cut it in small parts, sorting and storage extracted items in the safe robot container. All steps are performed in automatic mode. The remote control robot (RCR represents a safety system controlled by sensors and has the capability to analyze any error registered and decide next activities or abort the inside decommissioning procedure in case of any risk rise in order to ensure the environmental and workers protection.

  3. Structural details (kinks and non-α conformations) in transmembrane helices are intrahelically determined and can be predicted by sequence pattern descriptors

    Science.gov (United States)

    Rigoutsos, Isidore; Riek, Peter; Graham, Robert M.; Novotny, Jiri

    2003-01-01

    One of the promising methods of protein structure prediction involves the use of amino acid sequence-derived patterns. Here we report on the creation of non-degenerate motif descriptors derived through data mining of training sets of residues taken from the transmembrane-spanning segments of polytopic proteins. These residues correspond to short regions in which there is a deviation from the regular α-helical character (i.e. π-helices, 310-helices and kinks). A ‘search engine’ derived from these motif descriptors correctly identifies, and discriminates amongst instances of the above ‘non-canonical’ helical motifs contained in the SwissProt/TrEMBL database of protein primary structures. Our results suggest that deviations from α-helicity are encoded locally in sequence patterns only about 7–9 residues long and can be determined in silico directly from the amino acid sequence. Delineation of such variations in helical habit is critical to understanding the complex structure–function relationships of polytopic proteins and for drug discovery. The success of our current methodology foretells development of similar prediction tools capable of identifying other structural motifs from sequence alone. The method described here has been implemented and is available on the World Wide Web at http://cbcsrv.watson.ibm.com/Ttkw.html. PMID:12888523

  4. SU-E-T-170: Characterization of the Location, Extent, and Proximity to Critical Structures of Target Volumes Provides Detail for Improved Outcome Predictions Among Pancreatic Cancer Patients

    Energy Technology Data Exchange (ETDEWEB)

    Cheng, Z; Moore, J; Rosati, L; Mian, O; Narang, A; Herman, J; McNutt, T [Johns Hopkins University, Baltimore, MD (United States)

    2015-06-15

    Purpose: In radiotherapy, size, location and proximity of the target to critical structures influence treatment decisions. It has been shown that proximity of the target predicts dosimetric sparing of critical structures. In addition to dosimetry, precise location of disease has further implications such as tumor invasion, or proximity to major arteries that inhibit surgery. Knowledge of which patients can be converted to surgical candidates by radiation may have high impact on future treat/no-treat decisions. We propose a method to improve our characterization of the location of pancreatic cancer and treatment volume extent with respect to nearby arteries with the goal of developing features to improve clinical predictions and decisions. Methods: Oncospace is a local learning health system that systematically captures clinical outcomes and all aspects of radiotherapy treatment plans, including overlap volume histograms (OVH) – a measure of spatial relationships between two structures. Minimum and maximum distances of PTV and OARs based on OVH, PTV volume, anatomic location by ICD-9 code, and surgical outcome were queried. Normalized distance to center from the left and right kidney was calculated to indicate tumor location and laterality. Distance to critical arteries (celiac, superior mesenteric, common hepatic) is validated by surgical status (borderline resectable, locally advanced converted to resectable). Results: There were 205 pancreas stereotactic body radiotherapy patients treated from 2009–2015 queried. Location/laterality of tumor based on kidney OVH show strong trends between location by OVH and by ICD-9. Compared to the locally advanced group, the borderline resectable group showed larger geometrical distance from critical arteries (p=0.03). Conclusion: Our platform enabled analysis of shape/size-location relationships. These data suggest that PTV volume and attention to distance between PTVs and surrounding OARs and major arteries may be

  5. SU-E-T-170: Characterization of the Location, Extent, and Proximity to Critical Structures of Target Volumes Provides Detail for Improved Outcome Predictions Among Pancreatic Cancer Patients

    International Nuclear Information System (INIS)

    Cheng, Z; Moore, J; Rosati, L; Mian, O; Narang, A; Herman, J; McNutt, T

    2015-01-01

    Purpose: In radiotherapy, size, location and proximity of the target to critical structures influence treatment decisions. It has been shown that proximity of the target predicts dosimetric sparing of critical structures. In addition to dosimetry, precise location of disease has further implications such as tumor invasion, or proximity to major arteries that inhibit surgery. Knowledge of which patients can be converted to surgical candidates by radiation may have high impact on future treat/no-treat decisions. We propose a method to improve our characterization of the location of pancreatic cancer and treatment volume extent with respect to nearby arteries with the goal of developing features to improve clinical predictions and decisions. Methods: Oncospace is a local learning health system that systematically captures clinical outcomes and all aspects of radiotherapy treatment plans, including overlap volume histograms (OVH) – a measure of spatial relationships between two structures. Minimum and maximum distances of PTV and OARs based on OVH, PTV volume, anatomic location by ICD-9 code, and surgical outcome were queried. Normalized distance to center from the left and right kidney was calculated to indicate tumor location and laterality. Distance to critical arteries (celiac, superior mesenteric, common hepatic) is validated by surgical status (borderline resectable, locally advanced converted to resectable). Results: There were 205 pancreas stereotactic body radiotherapy patients treated from 2009–2015 queried. Location/laterality of tumor based on kidney OVH show strong trends between location by OVH and by ICD-9. Compared to the locally advanced group, the borderline resectable group showed larger geometrical distance from critical arteries (p=0.03). Conclusion: Our platform enabled analysis of shape/size-location relationships. These data suggest that PTV volume and attention to distance between PTVs and surrounding OARs and major arteries may be

  6. Future Details of Architecture

    OpenAIRE

    Garcia, Mark

    2014-01-01

    Despite the exaggerated news of the untimely ′death of the detail′ by Greg Lynn, the architectural detail is now more lifelike and active than ever before. In this era of digital design and production technologies, new materials, parametrics, building information modeling (BIM), augmented realities and the nano–bio–information–computation consilience, the detail is now an increasingly vital force in architecture. Though such digitally designed and produced details are diminishing in size to t...

  7. Detection of Propagating Fast Sausage Waves through Detailed Analysis of a Zebra-pattern Fine Structure in a Solar Radio Burst

    Science.gov (United States)

    Kaneda, K.; Misawa, H.; Iwai, K.; Masuda, S.; Tsuchiya, F.; Katoh, Y.; Obara, T.

    2018-03-01

    Various magnetohydrodynamic (MHD) waves have recently been detected in the solar corona and investigated intensively in the context of coronal heating and coronal seismology. In this Letter, we report the first detection of short-period propagating fast sausage mode waves in a metric radio spectral fine structure observed with the Assembly of Metric-band Aperture Telescope and Real-time Analysis System. Analysis of Zebra patterns (ZPs) in a type-IV burst revealed a quasi-periodic modulation in the frequency separation between the adjacent stripes of the ZPs (Δf ). The observed quasi-periodic modulation had a period of 1–2 s and exhibited a characteristic negative frequency drift with a rate of 3–8 MHz s‑1. Based on the double plasma resonance model, the most accepted generation model of ZPs, the observed quasi-periodic modulation of the ZP can be interpreted in terms of fast sausage mode waves propagating upward at phase speeds of 3000–8000 km s‑1. These results provide us with new insights for probing the fine structure of coronal loops.

  8. Crowdsourcing detailed flood data

    Science.gov (United States)

    Walliman, Nicholas; Ogden, Ray; Amouzad*, Shahrzhad

    2015-04-01

    Over the last decade the average annual loss across the European Union due to flooding has been 4.5bn Euros, but increasingly intense rainfall, as well as population growth, urbanisation and the rising costs of asset replacements, may see this rise to 23bn Euros a year by 2050. Equally disturbing are the profound social costs to individuals, families and communities which in addition to loss of lives include: loss of livelihoods, decreased purchasing and production power, relocation and migration, adverse psychosocial effects, and hindrance of economic growth and development. Flood prediction, management and defence strategies rely on the availability of accurate information and flood modelling. Whilst automated data gathering (by measurement and satellite) of the extent of flooding is already advanced it is least reliable in urban and physically complex geographies where often the need for precise estimation is most acute. Crowdsourced data of actual flood events is a potentially critical component of this allowing improved accuracy in situations and identifying the effects of local landscape and topography where the height of a simple kerb, or discontinuity in a boundary wall can have profound importance. Mobile 'App' based data acquisition using crowdsourcing in critical areas can combine camera records with GPS positional data and time, as well as descriptive data relating to the event. This will automatically produce a dataset, managed in ArcView GIS, with the potential for follow up calls to get more information through structured scripts for each strand. Through this local residents can provide highly detailed information that can be reflected in sophisticated flood protection models and be core to framing urban resilience strategies and optimising the effectiveness of investment. This paper will describe this pioneering approach that will develop flood event data in support of systems that will advance existing approaches such as developed in the in the UK

  9. Detection of Propagating Fast Sausage Waves through a Detailed Analysis of a Zebra Pattern Fine Structure in a Solar Radio Burst

    Science.gov (United States)

    Kaneda, K.; Misawa, H.; Iwai, K.; Masuda, S.; Tsuchiya, F.; Katoh, Y.; Obara, T.

    2017-12-01

    Recent observations have revealed that various modes of magnetohydrodynamic (MHD) waves are ubiquitous in the corona. In imaging observations in EUV, propagating fast magnetoacoustic waves are difficult to observe due to the lack of time resolution. Quasi-periodic modulation of radio fine structures is an important source of information on these MHD waves. Zebra patterns (ZPs) are one of such fine structures in type IV bursts, which consist of several parallel stripes superimposed on the background continuum. Although the generation mechanism of ZPs has been discussed still, the most favorable model of ZPs is so-called double plasma resonance (DPR) model. In the DPR model, the frequency separation between the adjacent stripes (Δf) is determined by the plasma density and magnetic field in their source. Hence, the variation of Δf in time and frequency represents the disturbance in their source region in the corona. We report the detection of propagating fast sausage waves through the analysis of a ZP event on 2011 June 21. The variation of Δf in time and frequency was obtained using highly resolved spectral data from the Assembly of Metric-band Aperture Telescope and Real-time Analysis System (AMATERAS). We found that Δf increases with the increase of emission frequency as a whole, which is consistent with the DPR model. Furthermore, we also found that irregularities in Δf are repetitively drifting from the high frequency side to the low frequency side. Their frequency drift rate was 3 - 8 MHz/s and the repetitive frequency was several seconds. Assuming the ZP generation by the DPR model, the drifting irregularities in Δf correspond to propagating disturbances in plasma density and magnetic field with speeds of 3000 - 8000 km/s. Taking account of these facts, the observed modulations in Δf can be explained by fast sausage waves propagating through the corona. We will also discuss the plasma conditions in the corona estimated from the observational results.

  10. Electronic structure in the bulk and at the surface of lanthanide materials. A detailed study with X-ray emission and inverse photoemission

    CERN Document Server

    Huebinger, F

    2000-01-01

    LaTe. With measurements of the O3-XE in the Lanthanum-Chalcogenides we could demonstrate the transfer of s-like valence electrons from the Lanthanum atom to the Chalcogen atom. Furthermore, the binding energy of the state at the Lanthanum atom was determined. The surface core-level shift is smaller by 25 % in the Chalcogenides than in La-metal. We also describe a theoretical model, which qualitatively explains the observed larger shifts of the core-level binding energy in PE than in IPE from Lanthan-Chalcogenides. This dissertation is concerned with the occupied and unoccupied electronic structure of lanthanide materials. With surface sensitive electron-excited x-ray emission spectroscopy (XES) we could experimentally determine a surface and bulk partial density of states (p-DOS) for the metals Lanthanum, Lutetium and Samarium. From calculations of the O3-XE transition probability we anticipate a three times higher probability for s-like than for d-like electrons to fill the 5p3/2-hole; this was confirmed exp...

  11. Coarse-grained/molecular mechanics of the TAS2R38 bitter taste receptor: experimentally-validated detailed structural prediction of agonist binding.

    Directory of Open Access Journals (Sweden)

    Alessandro Marchiori

    Full Text Available Bitter molecules in humans are detected by ∼25 G protein-coupled receptors (GPCRs. The lack of atomic resolution structure for any of them is complicating an in depth understanding of the molecular mechanisms underlying bitter taste perception. Here, we investigate the molecular determinants of the interaction of the TAS2R38 bitter taste receptor with its agonists phenylthiocarbamide (PTC and propylthiouracil (PROP. We use the recently developed hybrid Molecular Mechanics/Coarse Grained (MM/CG method tailored specifically for GPCRs. The method, through an extensive exploration of the conformational space in the binding pocket, allows the identification of several residues important for agonist binding that would have been very difficult to capture from the standard bioinformatics/docking approach. Our calculations suggest that both agonists bind to Asn103, Phe197, Phe264 and Trp201, whilst they do not interact with the so-called extra cellular loop 2, involved in cis-retinal binding in the GPCR rhodopsin. These predictions are consistent with data sets based on more than 20 site-directed mutagenesis and functional calcium imaging experiments of TAS2R38. The method could be readily used for other GPCRs for which experimental information is currently lacking.

  12. High-energy radiography. Detection of details of complex structures at great depths; Hochenergieradiographie. Erkennung von Einzelheiten in grossen, komplexen Schichttiefen

    Energy Technology Data Exchange (ETDEWEB)

    Kolkoori, Sanjeevareddy; Wrobel, Norma; Osterloh, Kurt; Redmer, Bernhard; Deresch, Andreas; Ewert, Uwe [Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin (Germany)

    2013-07-01

    This study was dedicated to the nondestructive inspection of steel containers using high-energy X-ray radiation from a Betatron (2 - 7.5 MeV) and high-resolution flat detectors. Experimental work revealed that high levels of heterogeneity of the container content were associated with correspondingly noisy radiographs. This makes it difficult to discriminate materials from one another, especially in the presence of heavy metals, i.e. thick (≥ 85 mm) steel components with boreholes and complex structures. Furthermore, the influence of the thickness of the Cu prefilter on the bremsstrahlung spectrum was investigated in order to determine what would be the optimal conditions for dual-energy radiography. The radiographic inspection of containers was simulated using the aRTist software, which has been presented elsewhere. Simulated radiographs of a steel container containing various materials were compared quantitatively with the experimental results. The measured attenuation coefficients for Al, Cu and Fe were in good agreement with the simulation results.

  13. Synthesis and structural details of MSr{sub 2}RECu{sub 2}O{sub 7+{delta}}(M-1212;0{<=}{delta}<1) compounds with M = Al, Nb, Fe, Ru, Ga and Co and RE = Eu, Y

    Energy Technology Data Exchange (ETDEWEB)

    Kumar, Shiva [National Physical Laboratory, New Delhi 110 012 (India); Department of Physics, Jamia Millia Islamia University, New Delhi 110 025 (India); Mudgel, Monika, E-mail: mudgelmk@mail.nplindia.ernet.i [National Physical Laboratory, New Delhi 110 012 (India); Dogra, Anjana [National Physical Laboratory, New Delhi 110 012 (India); Husain, M. [Department of Physics, Jamia Millia Islamia University, New Delhi 110 025 (India); Awana, V.P.S.; Kishan, Hari [National Physical Laboratory, New Delhi 110 012 (India)

    2010-12-15

    Synthesis and structural details of MSr{sub 2}RECu{sub 2}O{sub z} (M-1212) compounds with M = Ga, Nb, Fe, Al and Co) and RE = Eu, Y are reported. Reitveld refinement of X-ray diffraction (XRD) patterns shows that all compounds are crystallized in single phase. Nb-, Fe- and Al-1212 possess tetragonal P4/mmm space group structure while the Ga-1212 and Co-1212 are crystallized in orthorhombic Ima2 space group. The change of space group from P4/mmm to Ima2 indicating towards the doubling of unit cell. The buckling angle [Cu(2)-O(2)-Cu(2) angle] shows that most of the studied samples are heavily under doped and hence they could not exhibit superconductivity. Thermogravimetric (TGA) analysis shows the M-1212 compounds to be more stable than widely studied 90 K superconductor Cu-1212 (RE-123).

  14. Detailed Investigation of the Structural, Thermal, and Electronic Properties of Gold Isocyanide Complexes with Mechano-Triggered Single-Crystal-to-Single-Crystal Phase Transitions.

    Science.gov (United States)

    Seki, Tomohiro; Sakurada, Kenta; Muromoto, Mai; Seki, Shu; Ito, Hajime

    2016-02-01

    Mechano-induced phase transitions in organic crystalline materials, which can alter their properties, have received much attention. However, most mechano-responsive molecular crystals exhibit crystal-to-amorphous phase transitions, and the intermolecular interaction patterns in the daughter phase are difficult to characterize. We have investigated phenyl(phenylisocyanide)gold(I) (1) and phenyl(3,5-dimethylphenylisocyanide)gold(I) (2) complexes, which exhibit a mechano-triggered single-crystal-to-single-crystal phase transition. Previous reports of complexes 1 and 2 have focused on the relationships between the crystalline structures and photoluminescence properties; in this work we have focused on other aspects. The face index measurements of complexes 1 and 2 before and after the mechano-induced phase transitions have indicated that they undergo non-epitaxial phase transitions without a rigorous orientational relationship between the mother and daughter phases. Differential scanning calorimetry analyses revealed the phase transition of complex 1 to be enthalpically driven by the formation of new aurophilic interactions. In contrast, the phase transition of complex 2 was found to be entropically driven, with the closure of an empty void in the mother phase. Scanning electron microscopy observation showed that the degree of the charging effect of both complexes 1 and 2 was changed by the phase transitions, which suggests that the formation of the aurophilic interactions affords more effective conductive pathways. Moreover, flash-photolysis time-resolved microwave conductivity measurements revealed that complex 1 increased in conductivity after the phase change, whereas the conductivity of complex 2 decreased. These contrasting results were explained by the different patterns in the aurophilic interactions. Finally, an intriguing disappearing polymorphism of complex 2 has been reported, in which a polymorph form could not be obtained again after some period of time

  15. Detailed Soils 24K

    Data.gov (United States)

    Kansas Data Access and Support Center — This data set is a digital soil survey and is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The information was...

  16. Devil's in the (diffuse) detail

    International Nuclear Information System (INIS)

    Welberry, R.

    2006-07-01

    X-ray crystallography is an important workhorse in the world of solid-state chemistry. However, while it's a powerful tool in determining the average structure in a crystal lattice, conventional crystallography is very limited when it comes to understanding nano-scale disorder within that crystal structure. And when it comes to understanding the properties of many important materials, the devil is in the detail. X-ray diffraction is still one of the keys to understanding this finer scale structure but using it requires a capacity to read between the lines - to understand the diffuse diffraction that most crystallography ignores. Scientists at the Research School of Chemistry are leading the world in this field. Their work on modelling nano-scaled disorder using diffuse diffraction is opening up new possibilities in understanding and modifying many of our most important materials

  17. Three Latin Phonological Details

    DEFF Research Database (Denmark)

    Olsen, Birgit Anette

    2006-01-01

    The present paper deals with three minor details of Latin phonology: 1) the development of the initial sequence *u¿l¿-, where it is suggested that an apparent vacillation between ul- and vol-/vul- represents sandhi variants going back to the proto-language, 2) the adjectives ama¯rus ‘bitter...

  18. A review and rationalisation of journal subscriptions undertaken by a library and information service in a mental health trust in north-east England in 2009.

    Science.gov (United States)

    Steele, Rachel

    2011-12-01

    To describe the methods and processes used in an evaluation of local journal subscriptions in a mental health trust and to suggest possible further areas of investigation were similar exercises to be undertaken again. Results from a user questionnaire were analysed along with e-journal usage statistics and data from local document supply activity. Journal reviews can yield surprising results. Carrying out a user survey is valuable in highlighting awareness of e-resources more generally and thus in providing evidence for marketing/information literacy initiatives. Future journal reviews should undertake impact analysis as potent evidence for continued expenditure on journals in this age of austerity. © 2011 The authors. Health Information and Libraries Journal © 2011 Health Libraries Group.

  19. [Strategies for protecting the elderly from the health-risks of heat-waves: measures undertaken in Italy in the summer of 2004].

    Science.gov (United States)

    de Martino, Annamaria; Vasselli, Stefania; D'Argenio, Paolo

    2005-01-01

    Heat waves constitute an important public health problem because of their potential serious health impact on vulnerable populations such as the elderly and individuals living in poor health, socioeconomic, cultural or environmental conditions. The summer of 2003 was the hottest summer, with respect to both minimum and maximum temperatures, of the last fifty years. During that summer, an increased mortality was found especially in the elderly population = 75 years. The Ministry of Health therefore released guidelines for the regions and other local authorities, regarding the measures be undertaken in order to safeguard the elderly and other vulnerable populations from the health risks associated with heat waves. Subsequently, a survey was performed to collect information regarding the projects put into practice in the summer of 2004 by the various regions and local authorities. The aim of the study was to promote a comparison and sharing of appropriately documented experiences. This article classifies and describes the various interventions that were put into practice.

  20. Template Assembly for Detailed Urban Reconstruction

    KAUST Repository

    Nan, Liangliang

    2015-05-04

    We propose a new framework to reconstruct building details by automatically assembling 3D templates on coarse textured building models. In a preprocessing step, we generate an initial coarse model to approximate a point cloud computed using Structure from Motion and Multi View Stereo, and we model a set of 3D templates of facade details. Next, we optimize the initial coarse model to enforce consistency between geometry and appearance (texture images). Then, building details are reconstructed by assembling templates on the textured faces of the coarse model. The 3D templates are automatically chosen and located by our optimization-based template assembly algorithm that balances image matching and structural regularity. In the results, we demonstrate how our framework can enrich the details of coarse models using various data sets.

  1. Detailed Debunking of Denial

    Science.gov (United States)

    Enting, I. G.; Abraham, J. P.

    2012-12-01

    The disinformation campaign against climate science has been compared to a guerilla war whose tactics undermine the traditional checks and balances of science. One comprehensive approach has to been produce archives of generic responses such as the websites of RealClimate and SkepticalScience. We review our experiences with an alternative approach of detailed responses to a small number of high profile cases. Our particular examples were Professor Ian Plimer and Christopher Monckton, the Third Viscount Monckton of Brenchley, each of whom has been taken seriously by political leaders in our respective countries. We relate our experiences to comparable examples such as John Mashey's analysis of the Wegman report and the formal complaints about Lomborg's "Skeptical Environmentalist" and Durkin's "Great Global Warming Swindle". Our two approaches used contrasting approaches: an on-line video of a lecture vs an evolving compendium of misrepresentations. Additionally our approaches differed in the emphasis. The analysis of Monckton concentrated on the misrepresentation of the science, while the analysis of Plimer concentrated on departures from accepted scientific practice: fabrication of data, misrepresentation of cited sources and unattributed use of the work of others. Benefits of an evolving compendium were the ability to incorporate contributions from members of the public who had identified additional errors and the scope for addressing new aspects as they came to public attention. `Detailed debunking' gives non-specialists a reference point for distinguishing non-science when engaging in public debate.

  2. Global detailed gravimetric geoid

    Science.gov (United States)

    Vincent, S.; Marsh, J. G.

    1974-01-01

    A global detailed gravimetric geoid has been computed by combining the Goddard Space Flight Center GEM-4 gravity model derived from satellite and surface gravity data and surface 1 x 1-deg mean free-air gravity anomaly data. The accuracy of the geoid is plus or minus 2 meters on continents, 5 to 7 meters in areas where surface gravity data are sparse, and 10 to 15 meters in areas where no surface gravity data are available. Comparisons have been made with the astrogeodetic data provided by Rice (United States), Bomford (Europe), and Mather (Australia). Comparisons have also been carried out with geoid heights derived from satellite solutions for geocentric station coordinates in North America, the Caribbean, Europe and Australia.

  3. Salmonella in meats, water, fruit and vegetables as disclosed from testing undertaken by Food Business Operators in Ireland from 2005 to 2009

    Directory of Open Access Journals (Sweden)

    Duggan Sharon

    2012-09-01

    Full Text Available Abstract Food Business Operators (FBO are responsible for the safety of the food they produce and in Ireland those under the regulatory control of the Department of Agriculture, Food and Marine are required to provide summary data on microbiological tests undertaken as part of their food safety controls. These data are provided to the National Reference Laboratory through the 25 private laboratories undertaking the testing. Results Over the five-year period Salmonella sp. was isolated from 0.7% of the 254,000 raw meat or raw meat products tested with the annual prevalence ranging from 0.5 to 1.1%. Poultry meats were consistently more contaminated than other meats with higher recovery rates in turkey (3.3%, duck (3.3%, and chicken (2.5% compared with meats of porcine (1.6%, ovine (0.2% and bovine origin (0.1%. Salmonella sp. was also isolated from 58 (0.06% of the 96,115 cooked or partially cooked meat and meat products tested during the reporting period with the annual percentage positive samples ranging from 0.01 to 0.16%. A total of 50 different serotypes were recovered from raw meats over this period with the greatest diversity found in poultry samples (n = 36. Four serotypes, Kentucky, Typhimurium, Agona and Derby accounted for over 70% of all isolates detected on FBO testing over the period 2005 to 2009. Conclusions Capturing microbiological data generated by Food Business Operators allows the regulatory sector access to a substantial amount of valuable data with the minimum financial outlay.

  4. Detailed IR aperture measurements

    CERN Document Server

    Bruce, Roderik; Garcia Morales, Hector; Giovannozzi, Massimo; Hermes, Pascal Dominik; Mirarchi, Daniele; Quaranta, Elena; Redaelli, Stefano; Rossi, Carlo; Skowronski, Piotr Krzysztof; Wretborn, Sven Joel; CERN. Geneva. ATS Department

    2016-01-01

    MD 1673 was carried out on October 5 2016, in order to investigate in more detail the available aperture in the LHC high-luminosity insertions at 6.5 TeV and β∗=40 cm. Previous aperture measurements in 2016 during commissioning had shown that the available aperture is at the edge of protection, and that the aperture bottleneck at β∗=40 cm in certain cases is found in the separation plane instead of in the crossing plane. Furthermore, the bottlenecks were consistently found in close to the upstream end of Q3 on the side of the incoming beam, and not in Q2 on the outgoing beam as expected from calculations. Therefore, this MD aimed at measuring IR1 and IR5 separately (at 6.5 TeV and β∗=40 cm, for 185 µrad half crossing angle), to further localize the bottlenecks longitudinally using newly installed BLMs, investigate the difference in aperture between Q2 and Q3, and to see if any aperture can be gained using special orbit bumps.

  5. Preservation potential of subtle glacial landforms based on detailed mapping of recently exposed proglacial areas: application of unmanned aerial vehicle (UAV) and structure-from-motion (SfM)

    Science.gov (United States)

    Ewertowski, Marek; Evans, David; Roberts, David; Tomczyk, Aleksandra; Ewertowski, Wojciech

    2016-04-01

    Ongoing glacier retreat results in the continuous exposure of proglacial areas. Such areas contain invaluable information about glacial process-form relationships manifest in specific landform assemblages. However, preservation potential of freshly exposed glacial landforms is very low, as proglacial terrains are one of the most dynamic parts of the landscape. Therefore, rapid mapping and geomorphological characterisation of such areas is important from a glaciological and geomorphological point of view for proper understanding and reconstruction of glacier-landform dynamics and chronology of glacial events. Annual patterns of recession and relatively small areas exposed every year, mean that the performing of regular aerial or satellite survey is expensive and therefore impractical. Recent advances in technology enables the development of low-cost alternatives for traditional aerial surveys. Small unmanned aerial vehicles (UAV) can be used to acquire high-resolution (several cm) low-altitude photographs. The UAV-based photographs can be subsequently processed through the structure-from-motion process to generate detailed orthophotomaps and digital elevation models. In this study we present case studies from the forelands of various glaciers on Iceland and Svalbard representing different types of proglacial landscapes: Fláajökull (annual push moraines); Hofellsjökul (bedrock bedforms and push moraines); Fjallsjökull (marginal drainage network); Rieperbreen (crevasse squeeze ridges and longitudinal debris stripes); Ayerbreen (transverse debris ridges); Foxfonna (longitudinal debris stripes);Hørbyebreen (geometric ridge network); Nordenskiöldbreen (fluted till surface); Ebbabreen (controlled moraine complex). UAV campaigns were conducted using a low-cost quadcopter platform. Resultant orthophotos and DEMs enabled mapping and assessment of recent glacial landscape development in different types of glacial landsystems. Results of our study indicate that

  6. On Detailing in Contemporary Architecture

    DEFF Research Database (Denmark)

    Kristensen, Claus; Kirkegaard, Poul Henning

    2010-01-01

    Details in architecture have a significant influence on how architecture is experienced. One can touch the materials and analyse the detailing - thus details give valuable information about the architectural scheme as a whole. The absence of perceptual stimulation like details and materiality...... / tactility can blur the meaning of the architecture and turn it into an empty statement. The present paper will outline detailing in contemporary architecture and discuss the issue with respect to architectural quality. Architectural cases considered as sublime piece of architecture will be presented...

  7. Computed tomography:the details.

    Energy Technology Data Exchange (ETDEWEB)

    Doerry, Armin Walter

    2007-07-01

    Computed Tomography (CT) is a well established technique, particularly in medical imaging, but also applied in Synthetic Aperture Radar (SAR) imaging. Basic CT imaging via back-projection is treated in many texts, but often with insufficient detail to appreciate subtleties such as the role of non-uniform sampling densities. Herein are given some details often neglected in many texts.

  8. Culture is in the Details

    NARCIS (Netherlands)

    Zijlstra, H.; van Thoor, Marie-Thérèse; Stroux, Sara

    2018-01-01

    During earlier stays in Japan, in 2012 and 2014, I was struck by the great attention to detail, in the scale of the buildings, the streetscape, as well as in the clothing and the presentation of food. Life seems to be an accumulation of independent details that sometimes contrast considerably with

  9. Author Details - African Journals Online

    African Journals Online (AJOL)

    Khaled, M. Vol 12, No 3 (2000) - Articles EFFECTS OF SOLCOSERYL AND LOW DOSE ASPIRIN ON UTERINE BLOOD FLOW Details · Vol 12, No 3 (2000) - Articles MATERNAL SERUM INHIBIN A CONCETRATION AS A PREDICTOR FOR PRE-ECLAMPISA Details. ISSN: 1110-5607. AJOL African Journals Online.

  10. Details

    Indian Academy of Sciences (India)

    The incumbent should have passed Diploma in Secretarial Practice or Bachelors of Commerce with at least 50% marks. Should be proficient in typing, shorthand and MS office. Age: Not more than. 25 years as on 1 April 2017. Preference will be given to male candidates. Experience: 2 years experience in the administrative ...

  11. Details

    Indian Academy of Sciences (India)

    meetings, maintenance of records, inter-departmental coordination etc. Stipend during the first year will be Rs 15,000/- per month. Application on a plain paper along with the CV, self-attested copy of experience, proof of age and other pertinent documents should be sent by email to execsec@ias.ac.in with the subject line.

  12. Details

    Indian Academy of Sciences (India)

    Admin

    Duties also include coordination and liaison with Chief Editors and other members of Editorial. Board and ensure smooth work flow and undertake activities of processing and production of journals. Educational Qualification: Master's/Bachelor's degree in science from a recognized university. Age limit: Candidate should not ...

  13. Details

    Indian Academy of Sciences (India)

    Admin

    IASc), an institution under the Department of Science &. Technology, Government of India publishes scholarly journals, thematic books and other publications. The Academy currently publishes 10 journals in various disciplines in science.

  14. Doctors' views about training and future careers expressed one year after graduation by UK-trained doctors: questionnaire surveys undertaken in 2009 and 2010.

    Science.gov (United States)

    Maisonneuve, Jenny J; Lambert, Trevor W; Goldacre, Michael J

    2014-12-21

    The UK medical graduates of 2008 and 2009 were among the first to experience a fully implemented, new, UK training programme, called the Foundation Training Programme, for junior doctors. We report doctors' views of the first Foundation year, based on comments made as part of a questionnaire survey covering career choices, plans, and experiences. Postal and email based questionnaires about career intentions, destinations and views were sent in 2009 and 2010 to all UK medical graduates of 2008 and 2009. This paper is a qualitative study of 'free-text' comments made by first-year doctors when invited to comment, if they wished, on any aspect of their work, education, training, and future. The response rate to the surveys was 48% (6220/12952); and 1616 doctors volunteered comments. Of these, 61% wrote about their first year of training, 35% about the working conditions they had experienced, 33% about how well their medical school had prepared them for work, 29% about their future career, 25% about support from peers and colleagues, 22% about working in medicine, and 15% about lifestyle issues. When concerns were expressed, they were commonly about the balance between service provision, administrative work, and training and education, with the latter often suffering when it conflicted with the needs of medical service provision. They also wrote that the quality of a training post often depended on the commitment of an individual senior doctor. Service support from seniors was variable and some respondents complained of a lack of team work and team ethic. Excessive hours and the lack of time for reflection and career planning before choices about the future had to be made were also mentioned. Some doctors wrote that their views were not sought by their hospital and that NHS management structures did not lend themselves to efficiency. UK graduates from non-UK homes felt insecure about their future career prospects in the UK. There were positive comments about

  15. Structural cladding /clad structures:

    DEFF Research Database (Denmark)

    Beim, Anne

    2013-01-01

    tendencies, which can be traced in the use of materials, the structural features and the construction details of building systems in selected architectural works. With a particular focus at heavy constructions made of solid wood and masonry, and light weight constructions made of wooden frame structures...

  16. IPUMS: Detailed global data on population characteristics

    Science.gov (United States)

    Kugler, T.

    2017-12-01

    Many new and exciting sources of data on human population distributions based on remote sensing, mobile technology, and other mechanisms are becoming available. These new data sources often provide fine scale spatial and/or temporal resolution. However, they typically focus on the location of population, with little or no information on population characteristics. The large and growing collection of data available through the IPUMS family of products complements datasets that provide spatial and temporal detail but little attribute detail by providing the full depth of characteristics covered by population censuses, including demographic, household structure, economic, employment, education, and housing characteristics. IPUMS International provides census microdata for 85 countries. Microdata provide the responses to every census question for each individual in a sample of households. Microdata identify the sub-national geographic unit in which a household is located, but for confidentiality reasons, identified units must include a minimum population, typically 20,000 people. Small-area aggregate data often describe much smaller geographic units, enabling study of detailed spatial patterns of population characteristics. However the structure of aggregate data tables is highly heterogeneous across countries, census years, and even topics within a given census, making these data difficult to work with in any systematic way. A recently funded project will assemble small-area aggregate population and agricultural census data published by national statistical offices. Through preliminary work collecting and cataloging over 10,000 tables, we have identified a small number of structural families that can be used to organize the many different structures. These structural families will form the basis for software tools to document and standardize the tables for ingest into a common database. Both the microdata and aggregate data are made available through IPUMS Terra

  17. Methodological Details and Full Bibliography

    Data.gov (United States)

    U.S. Environmental Protection Agency — This dataset has several components, The first part describes fully our literature review, providing details not included in the text. The second part provides all...

  18. Transformative Dynamics in Detailed Planning

    DEFF Research Database (Denmark)

    Quitzau, Maj-Britt; Poulsen, Naja; Gustavsson, Ted

    that the translation process relies heavily on integration of impositions in the detailed plan, although this has clear limitations, since some sustainable strategies are more difficult to impose than others. It also shows how strategic navigation may represent an alternative translation strategy to promote more...... difficult sustainable strategies that address the project design more directly. In conclusion, the paper argues that strategic navigation represents a stronger mediator of change compared to the detailed plan, but that especially timing issues in the coordination between formal planning and design processes...

  19. Detail in architecture: Between arts

    Directory of Open Access Journals (Sweden)

    Dulencin Juraj

    2016-06-01

    Full Text Available Architectural detail represents an important part of architecture. Not only can it be used as an identifier of a specific building but at the same time enhances the experience of the realized project. Within it lie the signs of a great architect and clues to understanding his or her way of thinking. It is therefore the central topic of a seminar offered to architecture students at the Brno University of Technology. During the course of the semester-long class the students acquaint themselves with atypical architectural details of domestic and international architects by learning to read them, understand them and subsequently draw them by creating architectural blueprints. In other words, by general analysis of a detail the students learn theoretical thinking of its architect who, depending on the nature of the design, had to incorporate a variety of techniques and crafts. Students apply this analytical part to their own architectural detail design. The methodology of the seminar consists of experiential learning by project management and is complemented by a series of lectures discussing a diversity of details as well as materials and technologies required to implement it. The architectural detail design is also part of students’ bachelors thesis, therefore, the realistic nature of their blueprints can be verified in the production process of its physical counterpart. Based on their own documentation the students choose the most suitable manufacturing process whether it is supplied by a specific technology or a craftsman. Students actively participate in the production and correct their design proposals in real scale with the actual material. A student, as a future architect, stands somewhere between a client and an artisan, materializes his or her idea and adjusts the manufacturing process so that the final detail fulfills aesthetic consistency and is in harmony with its initial concept. One of the very important aspects of the design is its

  20. DAGAL: Detailed Anatomy of Galaxies

    Science.gov (United States)

    Knapen, Johan H.

    2017-03-01

    The current IAU Symposium is closely connected to the EU-funded network DAGAL (Detailed Anatomy of Galaxies), with the final annual network meeting of DAGAL being at the core of this international symposium. In this short paper, we give an overview of DAGAL, its training activities, and some of the scientific advances that have been made under its umbrella.

  1. Detailed Quantitative Classifications of Galaxy Morphology

    Science.gov (United States)

    Nair, Preethi

    2018-01-01

    Understanding the physical processes responsible for the growth of galaxies is one of the key challenges in extragalactic astronomy. The assembly history of a galaxy is imprinted in a galaxy’s detailed morphology. The bulge-to-total ratio of galaxies, the presence or absence of bars, rings, spiral arms, tidal tails etc, all have implications for the past merger, star formation, and feedback history of a galaxy. However, current quantitative galaxy classification schemes are only useful for broad binning. They cannot classify or exploit the wide variety of galaxy structures seen in nature. Therefore, comparisons of observations with theoretical predictions of secular structure formation have only been conducted on small samples of visually classified galaxies. However large samples are needed to disentangle the complex physical processes of galaxy formation. With the advent of large surveys, like the Sloan Digital Sky Survey (SDSS) and the upcoming Large Synoptic Survey Telescope (LSST) and WFIRST, the problem of statistics will be resolved. However, the need for a robust quantitative classification scheme will still remain. Here I will present early results on promising machine learning algorithms that are providing detailed classifications, identifying bars, rings, multi-armed spiral galaxies, and Hubble type.

  2. Detailed structural characterization of the grafting of [Ta(=CHtBu)(CH2tBu)3] and [Cp*TaMe4] on silica partially dehydroxylated at 700 C and the activity of the grafted complexes toward alkane metathesis

    Energy Technology Data Exchange (ETDEWEB)

    Le Roux, Erwan; Chabanas, Mathieu; Baudouin, Anne; de Mallmann, Aimery; Coperet, Christophe; Quadrelli, E. Allesandra; Thivolle-Cazat, Jean; Basset, Jean-Marie; Lukens, Wayne; Lesage, Anne; Emsley, Lyndon; Sunley, Glenn J.

    2004-08-30

    The reaction of [Ta({double_bond}CHtBu)(CH{sub 2}tBu){sub 3}] or [Cp*Ta(CH{sub 3}){sub 4}] with a silica partially dehydroxylated at 700 C gives the corresponding monosiloxy surface complexes [({triple_bond}SiO)Ta({double_bond}CHtBu)(CH{sub 2}tBu){sub 2}] and [({triple_bond}SiO)Ta(CH{sub 3}){sub 3}Cp*] by eliminating a {sigma}-bonded ligand as the corresponding alkane (H-CH{sub 2}tBu or H-CH{sub 3}). EXAFS data show that an adjacent siloxane bridge of the surface plays the role of an extra surface ligand, which most likely stabilizes these complexes as in [({triple_bond}SiO)Ta({double_bond}CHtBu)(CH{sub 2}tBu){sub 2}({triple_bond}SiOSi{triple_bond})] (1a') and [({triple_bond}SiO)Ta(CH{sub 3}){sub 3}Cp*({triple_bond}SiOSi{triple_bond})] (2a'). In the case of [({triple_bond}SiO)Ta({double_bond}CHtBu)(CH{sub 2}tBu){sub 2}({triple_bond}SiOSi{triple_bond})], the structure is further stabilized by an additional interaction: a C-H agostic bond as evidenced by the small J coupling constant for the carbenic C-H (H{sub C-H} = 80 Hz), which was measured by J-resolved 2D solid-state NMR spectroscopy. The product selectivity in propane metathesis in the presence of [({triple_bond}SiO)Ta({double_bond}CHtBu)-(CH{sub 2}tBu){sub 2}({triple_bond}SiOSi{triple_bond})] (1a') as a catalyst precursor and the inactivity of the surface complex [({triple_bond}SiO)Ta-(CH{sub 3}){sub 3}Cp*({triple_bond}SiOSi{triple_bond})] (2a') show that the active site is required to be highly electrophilic and probably involves a metallacyclobutane intermediate.

  3. Detailed modeling of mountain wave PSCs

    Directory of Open Access Journals (Sweden)

    S. Fueglistaler

    2003-01-01

    Full Text Available Polar stratospheric clouds (PSCs play a key role in polar ozone depletion. In the Arctic, PSCs can occur on the mesoscale due to orographically induced gravity waves. Here we present a detailed study of a mountain wave PSC event on 25-27 January 2000 over Scandinavia. The mountain wave PSCs were intensively observed by in-situ and remote-sensing techniques during the second phase of the SOLVE/THESEO-2000 Arctic campaign. We use these excellent data of PSC observations on 3 successive days to analyze the PSCs and to perform a detailed comparison with modeled clouds. We simulated the 3-dimensional PSC structure on all 3 days with a mesoscale numerical weather prediction (NWP model and a microphysical box model (using best available nucleation rates for ice and nitric acid trihydrate particles. We show that the combined mesoscale/microphysical model is capable of reproducing the PSC measurements within the uncertainty of data interpretation with respect to spatial dimensions, temporal development and microphysical properties, without manipulating temperatures or using other tuning parameters. In contrast, microphysical modeling based upon coarser scale global NWP data, e.g. current ECMWF analysis data, cannot reproduce observations, in particular the occurrence of ice and nitric acid trihydrate clouds. Combined mesoscale/microphysical modeling may be used for detailed a posteriori PSC analysis and for future Arctic campaign flight and mission planning. The fact that remote sensing alone cannot further constrain model results due to uncertainities in the interpretation of measurements, underlines the need for synchronous in-situ PSC observations in campaigns.

  4. Author Details - African Journals Online

    African Journals Online (AJOL)

    Jaswir, I. Vol 10, No 81 (2011) - Articles Nano-structural analysis of fish collagen extracts for new process development. Abstract PDF · Vol 10, No 81 (2011) - Articles Isolation of fucoxanthin and fatty acids analysis of Padina australis and cytotoxic effect of fucoxanthin on human lung cancer (H1299) cell lines. Abstract PDF.

  5. Local Mode Analysis: Decoding IR Spectra by Visualizing Molecular Details.

    Science.gov (United States)

    Massarczyk, M; Rudack, T; Schlitter, J; Kuhne, J; Kötting, C; Gerwert, K

    2017-04-20

    Integration of experimental and computational approaches to investigate chemical reactions in proteins has proven to be very successful. Experimentally, time-resolved FTIR difference-spectroscopy monitors chemical reactions at atomic detail. To decode detailed structural information encoded in IR spectra, QM/MM calculations are performed. Here, we present a novel method which we call local mode analysis (LMA) for calculating IR spectra and assigning spectral IR-bands on the basis of movements of nuclei and partial charges from just a single QM/MM trajectory. Through LMA the decoding of IR spectra no longer requires several simulations or optimizations. The novel approach correlates the motions of atoms of a single simulation with the corresponding IR bands and provides direct access to the structural information encoded in IR spectra. Either the contributions of a particular atom or atom group to the complete IR spectrum of the molecule are visualized, or an IR-band is selected to visualize the corresponding structural motions. Thus, LMA decodes the detailed information contained in IR spectra and provides an intuitive approach for structural biologists and biochemists. The unique feature of LMA is the bidirectional analysis connecting structural details to spectral features and vice versa spectral features to molecular motions.

  6. Detailed modelling of biomass pyrolysis: biomass structure and composition

    International Nuclear Information System (INIS)

    Hugony, F.; Migliavacca, G.; Faravelli, T.; Ranzi, E.

    2007-01-01

    The research routes followed in the field of numerical modelling development for biomass devolatilization are here summarised. In this first paper a wide introduction concerning the description of the chemical nature of the main classes of compounds which constitute biomasses is reported, it is the starting point for the subsequent description of the developed models, described in the companion paper [it

  7. The Finer Details: Climate Modeling

    Science.gov (United States)

    2000-01-01

    If you want to know whether you will need sunscreen or an umbrella for tomorrow's picnic, you can simply read the local weather report. However, if you are calculating the impact of gas combustion on global temperatures, or anticipating next year's rainfall levels to set water conservation policy, you must conduct a more comprehensive investigation. Such complex matters require long-range modeling techniques that predict broad trends in climate development rather than day-to-day details. Climate models are built from equations that calculate the progression of weather-related conditions over time. Based on the laws of physics, climate model equations have been developed to predict a number of environmental factors, for example: 1. Amount of solar radiation that hits the Earth. 2. Varying proportions of gases that make up the air. 3. Temperature at the Earth's surface. 4. Circulation of ocean and wind currents. 5. Development of cloud cover. Numerical modeling of the climate can improve our understanding of both the past and, the future. A model can confirm the accuracy of environmental measurements taken. in, the past and can even fill in gaps in those records. In addition, by quantifying the relationship between different aspects of climate, scientists can estimate how a future change in one aspect may alter the rest of the world. For example, could an increase in the temperature of the Pacific Ocean somehow set off a drought on the other side of the world? A computer simulation could lead to an answer for this and other questions. Quantifying the chaotic, nonlinear activities that shape our climate is no easy matter. You cannot run these simulations on your desktop computer and expect results by the time you have finished checking your morning e-mail. Efficient and accurate climate modeling requires powerful computers that can process billions of mathematical calculations in a single second. The NCCS exists to provide this degree of vast computing capability.

  8. Assessing Team Detailing End-user Satisfaction

    National Research Council Canada - National Science Library

    Whittam, Kimberly

    2004-01-01

    In 2002, the Navy's Enlisted Assignments Division (PERS-40) implemented a new process, called Team Detailing, to increase the interaction between the detailer, the Sailor, and the Sailor's Command Career Counselor...

  9. Full scale dynamic testing of Kozloduy NPP unit 5 structures

    International Nuclear Information System (INIS)

    Da Rin, E.M.

    1999-01-01

    As described in this report, the Kozloduy NPP western site has been subjected to low level earthquake-like ground shaking - through appropriately devised underground explosions - and the resulting dynamic response of the NPP reactor Unit 5 important structures appropriately measured and digitally recorded. In-situ free-field response was measured concurrently more than 100 m aside the main structures of interest. The collected experimental data provide reference information on the actual dynamic characteristics of the Kozloduy NPPs main structures, as well as give some useful indications on the dynamic soil-structure interaction effects for the case of low level excitation. Performing the present full-scale dynamic structural testing activities took advantage of the experience gained by ISMES during similar tests, lately performed in Italy and abroad (in particular, at the Paks NPP in 1994). The IAEA promoted dynamic testing of the Kozloduy NPP Unit 5 by means of pertinently designed buried explosion-induced ground motions which has provided a large amount of data on the dynamic structural response of its major structures. In the present report, the conducted investigation is described and the acquired digital data presented. A series of preliminary analyses were undertaken for examining in detail the ground excitation levels that were produced by these weak earthquake simulation experiments, as well as for inferring some structural characteristics and behaviour information from the collected data. These analyses ascertained the high quality of the collected digital data. Presumably due to soil-structure dynamic interaction effects, reduced excitation levels were observed at the reactor building foundation raft level with respect to the concurrent free-field ground motions. measured at a 140 m distance from the reactor building centre. Further more detailed and systematic analyses are worthwhile to be performed for extracting more complete information about the

  10. Shaping thin film growth and microstructure pathways via plasma and deposition energy: a detailed theoretical, computational and experimental analysis.

    Science.gov (United States)

    Sahu, Bibhuti Bhusan; Han, Jeon Geon; Kersten, Holger

    2017-02-15

    Understanding the science and engineering of thin films using plasma assisted deposition methods with controlled growth and microstructure is a key issue in modern nanotechnology, impacting both fundamental research and technological applications. Different plasma parameters like electrons, ions, radical species and neutrals play a critical role in nucleation and growth and the corresponding film microstructure as well as plasma-induced surface chemistry. The film microstructure is also closely associated with deposition energy which is controlled by electrons, ions, radical species and activated neutrals. The integrated studies on the fundamental physical properties that govern the plasmas seek to determine their structure and modification capabilities under specific experimental conditions. There is a requirement for identification, determination, and quantification of the surface activity of the species in the plasma. Here, we report a detailed study of hydrogenated amorphous and crystalline silicon (c-Si:H) processes to investigate the evolution of plasma parameters using a theoretical model. The deposition processes undertaken using a plasma enhanced chemical vapor deposition method are characterized by a reactive mixture of hydrogen and silane. Later, various contributions of energy fluxes on the substrate are considered and modeled to investigate their role in the growth of the microstructure of the deposited film. Numerous plasma diagnostic tools are used to compare the experimental data with the theoretical results. The film growth and microstructure are evaluated in light of deposition energy flux under different operating conditions.

  11. Estudios previos cursados y género de los maestros de primaria en formación: efectos sobre la resolución de problemas / Pre-service primary teachers' gender and studies previously undertaken: effects on problem solving

    Directory of Open Access Journals (Sweden)

    Alexandre Caballer Alonso

    2014-10-01

    Full Text Available Resumen: Este trabajo analiza la influencia del género y los estudios previos cursados en la resolución de problemas. Se utilizó un diseño experimental con dos variables independientes (género y estudios previos y una variable dependiente (puntuación en los problemas. Se administró un cuadernillo con dos problemas de diferente estructura a 66 estudiantes de tercer curso del Grado de Maestro en Educacion Primaria de la misma Facultad (Facultad de Magisterio de la Universidad de Valencia, España. Los resultados de los análisis de varianza simple muestran que: a los estudiantes de sexo masculino resuelven el problema difícil con más éxito que las estudiantes, b los estudiantes que han cursado bachillerato no resuelven los problemas significativamente mejor que los que no lo han cursado y, c los estudiantes que siguieron un itinerario en 4º de la ESO con Física y Química resuelven significativamente mejor los problemas que los restantes. Abstract: This study analyses the influence of gender and studies previously undertaken on problem-solving. An experimental design was used with two independent variables (gender and studies previously undertaken and one dependent variable (scores in the problems. A booklet containing two word problems that differ from each other in structure was administered to 66 third-year pre-service primary teachers from the same Faculty (Faculty of Teacher Training, University of Valencia, Spain. The results of the analyses of variance simple showed that: a men undergraduate students solve the difficult problem more successfully than women undergraduate students, b students who had completed post-compulsory secondary education do not solve the problems significantly better than the others, and c students who had studied physics and chemistry in the tenth grade at high school solve the problems significantly better than the others.

  12. Observations and Modeling of Atmospheric Radiance Structure

    National Research Council Canada - National Science Library

    Wintersteiner, Peter

    2001-01-01

    The overall purpose of the work that we have undertaken is to provide new capabilities for observing and modeling structured radiance in the atmosphere, particularly the non-LTE regions of the atmosphere...

  13. Simulation of flame-vortex interaction using detailed and reduced

    Energy Technology Data Exchange (ETDEWEB)

    Hilka, M. [Gaz de France (GDF), 75 - Paris (France); Veynante, D. [Ecole Centrale de Paris, Laboratoire EM2C. CNRS, 92 - Chatenay-Malabry (France); Baum, M. [CERFACS (France); Poinsot, T.J. [Centre National de la Recherche Scientifique (CNRS), 45 - Orleans-la-Source (France). Institut de Mecanique des Fluides de Toulouse

    1996-12-31

    The interaction between a pair of counter-rotating vortices and a lean premixed CH{sub 4}/O{sub 2}/N{sub 2} flame ({Phi} = + 0.55) has been studied by direct numerical simulations using detailed and reduced chemical reaction schemes. Results from the complex chemistry simulation are discussed with respect to earlier experiments and differences in the simulations using detailed and reduces chemistry are investigated. Transient evolutions of the flame surface and the total heat release rate are compared and modifications in the evolution of the local flame structure are displayed. (authors) 22 refs.

  14. Intrinsic properties of high-spin band structures in triaxial nuclei

    Science.gov (United States)

    Jehangir, S.; Bhat, G. H.; Sheikh, J. A.; Palit, R.; Ganai, P. A.

    2017-12-01

    The band structures of 68,70Ge, 128,130,132,134Ce and 132,134,136,138Nd are investigated using the triaxial projected shell model (TPSM) approach. These nuclei depict forking of the ground-state band into several s-bands and in some cases, both the lowest two observed s-bands depict neutron or proton character. It was discussed in our earlier work that this anomalous behaviour can be explained by considering γ-bands based on two-quasiparticle configurations. As the parent band and the γ-band built on it have the same intrinsic structure, g-factors of the two bands are expected to be similar. In the present work, we have undertaken a detailed investigation of g-factors for the excited band structures of the studied nuclei and the available data for a few high-spin states are shown to be in fair agreement with the predicted values.

  15. Visual Memory : The Price of Encoding Details

    NARCIS (Netherlands)

    Nieuwenstein, Mark; Kromm, Maria

    2017-01-01

    Studies on visual long-term memory have shown that we have a tremendous capacity for remembering pictures of objects, even at a highly detailed level. What remains unclear, however, is whether encoding objects at such a detailed level comes at any cost. In the current study, we examined how the

  16. Diffuse scattering and partial disorder in complex structures

    Directory of Open Access Journals (Sweden)

    T. R. Welberry

    2014-11-01

    Full Text Available The study of single-crystal diffuse scattering (SCDS goes back almost to the beginnings of X-ray crystallography. Because SCDS arises from two-body correlations, it contains information about local (short-range ordering in the sample, information which is often crucial in the attempt to relate structure to function. This review discusses the state of the field, including detectors and data collection and the modelling of SCDS using Monte Carlo and ab initio techniques. High-quality, three-dimensional volumes of SCDS data can now be collected at synchrotron light sources, allowing ever more detailed and quantitative analyses to be undertaken, and opening the way to approaches such as three-dimensional pair distribution function studies (3D-PDF and automated refinement of a disorder model, powerful techniques that require large volumes of low-noise data.

  17. Combined preliminary–detailed design of wind turbines

    Directory of Open Access Journals (Sweden)

    P. Bortolotti

    2016-05-01

    Full Text Available This paper is concerned with the holistic optimization of wind turbines. A multi-disciplinary optimization procedure is presented that marries the overall sizing of the machine in terms of rotor diameter and tower height (often termed “preliminary design” with the detailed sizing of its aerodynamic and structural components. The proposed combined preliminary–detailed approach sizes the overall machine while taking into full account the subtle and complicated couplings that arise due to the mutual effects of aerodynamic and structural choices. Since controls play a central role in dictating performance and loads, control laws are also updated accordingly during optimization. As part of the approach, rotor and tower are sized simultaneously, even in this case capturing the mutual effects of one component over the other due to the tip clearance constraint. The procedure, here driven by detailed models of the cost of energy, results in a complete aero-structural design of the machine, including its associated control laws. The proposed methods are tested on the redesign of two wind turbines, a 2.2 MW onshore machine and a large 10 MW offshore one. In both cases, the optimization leads to significant changes with respect to the initial baseline configurations, with noticeable reductions in the cost of energy. The novel procedures are also exercised on the design of low-induction rotors for both considered wind turbines, showing that they are typically not competitive with conventional high-efficiency rotors.

  18. Behaviour of several fatigue prone bridge details

    Science.gov (United States)

    Kubiš, Petr; Ryjáček, Pavel

    2017-09-01

    Three fatigue welded bridge joints analysed in this work are the alternative details of the bottom flange connection. This construction detail is mainly used for the erection connection for steel and composite bridges. If applied in the place, where live load is significant, the fatigue becomes the main design criterion. The detail category is thus very important factor. The aim of this paper is to analyse the possibilities of the improving the behaviour of this detail, by various methods. First solution is to modify the shape of the cope hole to the elliptic shape. Second option is to use the “Olemutz” fully welded detail. This detail is often used in bridge designing despite there is no exact information about the fatigue category, and doubts of the performance exists. “Olemutz” is a long web plate slit that is filled by the double bevel weld after the execution of the bottom flange weld. The last detail is the elliptic cope hole filled by the plate-cap welded into an empty hole. The geometry is the same, as in the first case. The conclusion of the numerical analysis and the pilot fatigue experiments is discussed with several practical recommendations for designing.

  19. Structural cladding /clad structures

    DEFF Research Database (Denmark)

    Beim, Anne

    2012-01-01

    the question of how materials are understood, handled and manifested when dealt with in architectural work and thus in building constructions. The question of ma-terial nature, the embedded properties and how materials perform when applied and transformed into constructions have been a central guiding rule...... or shared premise across architectural form making and building practices throughout centuries. However – today quite different regimes of thought define how building construction are to be designed and constructed. These are primarily driven by economic interest or environmental considerations dealt...... of materials, the structural features and the construction details of building systems in selected architectural works. With a particular focus at heavy constructions made of solid wood and masonry, and light weight constructions made of wooden frame structures and steel profiles, it is the intention...

  20. Patient-specific academic detailing for smoking cessation

    Science.gov (United States)

    Jin, Margaret; Gagnon, Antony; Levine, Mitchell; Thabane, Lehana; Rodriguez, Christine; Dolovich, Lisa

    2014-01-01

    Abstract Objective To describe and to determine the feasibility of a patient-specific academic detailing (PAD) smoking cessation (SC) program in a primary care setting. Design Descriptive cohort feasibility study. Setting Hamilton, Ont. Participants Pharmacists, physicians, nurse practitioners, and their patients. Interventions Integrated pharmacists received basic academic detailing training and education on SC and then delivered PAD to prescribers using structured verbal education and written materials. Data were collected using structured forms. Main outcome measures Five main feasibility criteria were generated based on Canadian academic detailing programs: PAD coordinator time to train pharmacists less than 40 hours; median time of SC education per pharmacist less than 20 hours; median time per PAD session less than 60 minutes for initial visit; percentage of prescribers receiving PAD within 3 months greater than 50%; and number of new SC referrals to pharmacists at 6 months more than 10 patients per 1.0 full-time equivalent (FTE) pharmacist (total of approximately 30 patients). Results Eight pharmacists (5.8 FTE) received basic academic detailing training and education on SC PAD. Forty-eight physicians and 9 nurse practitioners consented to participate in the study. The mean PAD coordinator training time was 29.1 hours. The median time for SC education was 3.1 hours. The median times for PAD sessions were 15 and 25 minutes for an initial visit and follow-up visit, respectively. The numbers of prescribers who had received PAD at 3 and 6 months were 50 of 64 (78.1%) and 57 of 64 (89.1%), respectively. The numbers of new SC referrals at 3 and 6 months were 11 patients per FTE pharmacist (total of 66 patients) and 34 patients per FTE pharmacist (total of 200 patients), respectively. Conclusion This study met the predetermined feasibility criteria with respect to the management, resources, process, and scientific components. Further study is warranted to determine

  1. Renewal of the operating license. Activities, uncertainties and challenges to be undertaken by Asco NPP; Renovacion de la autorizacion de explotacion. Actividades, incertidumbres y retos a acometer por C. N. Asco

    Energy Technology Data Exchange (ETDEWEB)

    Diez, R. I.; Gonzalez Ayestaran, P.

    2015-07-01

    The management plan of life aims to analyze and manage properly, the effects of time and the operation in the structures, systems and / or components considered within its scope, so that the functions defined remain at their bases leave during their service life. (Author)

  2. Cleaner combustion developing detailed chemical kinetic models

    CERN Document Server

    Battin-Leclerc, Frédérique; Simmie, John M

    2013-01-01

    This book describes the reactive chemistry of minor pollutants within extensively validated detailed mechanisms for traditional fuels, and also for innovative surrogates, describing the complex chemistry of new, environmentally important bio-fuels.

  3. Post Entitlement Management Information - Detail Database

    Data.gov (United States)

    Social Security Administration — Contains data that supports the detailed and aggregate receipt, pending and clearance data, as well as other strategic and tactical MI for many Title II and Title...

  4. Detailed Safety Review of Anthrax Vaccine Adsorbed

    National Research Council Canada - National Science Library

    2001-01-01

    To date, 18 human studies have assessed the safety of anthrax vaccination. These studies, some stretching back almost 50 years, reported adverse events after vaccination in varying degrees of detail...

  5. Seismic Safety Program: Ground motion and structural response

    Energy Technology Data Exchange (ETDEWEB)

    1993-05-01

    In 1964, John A. Blume & Associates Research Division (Blume) began a broad-range structural response program to assist the Nevada Operations Office of the US Atomic Energy Commission (AEC) in ensuring the continued safe conduct of underground nuclear detonation testing at the Nevada Test Site (NTS) and elsewhere. Blume`s long experience in earthquake engineering provided a general basis for the program, but much more specialized knowledge was required for the AEC`s purposes. Over the next 24 years Blume conducted a major research program to provide essential understanding of the detailed nature of the response of structures to dynamic loads such as those imposed by seismic wave propagation. The program`s results have been embodied in a prediction technology which has served to provide reliable advanced knowledge of the probable effects of seismic ground motion on all kinds of structures, for use in earthquake engineering and in building codes as well as for the continuing needs of the US Department of Energy`s Nevada Operations Office (DOE/NV). This report is primarily an accounting of the Blume work, beginning with the setting in 1964 and the perception of the program needs as envisioned by Dr. John A. Blume. Subsequent chapters describe the structural response program in detail and the structural prediction procedures which resulted; the intensive data acquisition program which, as is discussed at some length, relied heavily on the contributions of other consultant-contractors in the DOE/NV Seismic Safety Support Program; laboratory and field studies to provide data on building elements and structures subjected to dynamic loads from sources ranging from testing machines to earthquakes; structural response activities undertaken for testing at the NTS and for off-NTS underground nuclear detonations; and concluding with an account of corollary studies including effects of natural forces and of related studies on building response.

  6. THE POLITICS OF EVALUATION IN CO-FINANCED PROJECTS: THE CASE OF THE SCOTTISH EXECUTIVE AND THE EVALUATION OF THE STRUCTURAL FUNDS

    Directory of Open Access Journals (Sweden)

    Delia M. Costân

    2009-06-01

    Full Text Available This paper combines an analysis of the different theories expressed in the literature in relation to the process of evaluation and their empirical application to the case of a project evaluation undertaken by the Scottish Executive. The evaluation undertaken by the Scottish Executive is analysed in the context of the various theories and hypotheses expressed in the evaluation literature. Insight into the activity undertaken by the Scottish Executive and access to primary documents used, was facilitated by the author’s participation in a six week internship within the Structural Funds Division of the Scottish Executive. The analysis of the evaluation of the co-financed projects in Scotland revealed that the challenges to the process of evaluation in Scotland resulted in part from the existence of different understandings by the various stakeholders involved in the setting of the goals of the evaluation process. The author’s findings on the application of Article 4 in Scotland are that the different interpretations of Article 4 come from the European Commissions’ general approach to evaluation;, the Scottish Executives’ emphasis on meeting the absorption requirements of the Structural Funds and less on detailed evaluation, and the Programme Management Executives’ focus on supporting the project beneficiaries and less on evaluating the projects.

  7. Detailed seismic evaluation of bridges on and over the parkways in Western Kentucky.

    Science.gov (United States)

    2008-06-01

    The report outlines a rating system and details an evaluation procedure for the seismic evaluation of highway bridges. These processes are later used to investigate the structural integrity of selected highway bridges on and over the parkways in West...

  8. Thermal Imagery Details Larsen C Iceberg Calving

    Science.gov (United States)

    Shuman, C. A.; Scambos, T. A.; Schmaltz, J. E.; Melocik, K. A.; Klinger, M. J.

    2017-12-01

    The final calving of the 5800 km2 iceberg, initially named A-68, from the Larsen C ice shelf took place in darkness during Antarctica's austral winter. Landsat 8 special acquisitions by the Thermal Infrared Sensor (TIRS) on June 19th and July 21st showed the near-final extent of the rift as well as the iceberg after it had released. Such thermal imagery was a critical tool for seeing changes during this period of winter darkness. The completion of the rift across the Larsen C was first announced by Project MIDAS on 12 July based on thermal imagery from Aqua's Moderate Resolution Imaging Spectroradiometer (MODIS). The thermal contrast between the ocean and ice surfaces made it clear that the iceberg had released before Sentinel-1's radar and Landsat 8's thermal data confirmed that later on the same day. In addition to TIRS on Landsat 8 (Band 10) and the MODIS sensors on the Terra and Aqua satellites (Bands 31/32), the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi National Polar-orbiting Partnership (Suomi-NPP) satellite also acquires thermal imagery at a similar wavelength ( 11.5 microns) with its I5 Band. The advantage to these data relative to MODIS is that they are at a higher resolution, 375 m vs 1 km. This, along with multiple passes per day has enabled a detailed temporal study of the early drift movement of A68, followed by visible-band tracking and structural analysis using MODIS band 1 (Aqua and Terra; 250 m resolution) and Landsat 8 panchromatic band (15 m). Along with constraining the timing of the rift's breakthrough to a small time window on July 11th, these data allow tracking of the major pieces of A-68 as they formed, and of the intact area behind the deep embayment in the Larsen C's ice front. Further, we will track the movement of these large ice masses, and monitor summer melt and effects of further calving and thinning as they move northward in the circulation of the Weddell Gyre.

  9. Population Genetic Structure and Life History Variability in Oncorhynchus Nerka from the Snake River Basin, 1991-1993 Final Report.

    Energy Technology Data Exchange (ETDEWEB)

    Waples, Robin S.; Aebersold, Paul B.; Winans, Gary A. (Northwest and Alaska Fisheries Science Center, Coastal Zone and Estuarine Studies Division, Seattle, WA)

    1997-05-01

    A detailed examination of O. nerka from lakes in the Sawtooth Valley of Idaho was undertaken to help guide recovery planning for the endangered Redfish Lake population and to help resolve relationships between resident and anadromous forms.

  10. Ground Motion Characteristics of the 2015 Gorkha Earthquake, Survey of Damage to Stone Masonry Structures and Structural Field Tests

    Directory of Open Access Journals (Sweden)

    Rishi Ram Parajuli

    2015-11-01

    Full Text Available On April 25, 2015, a M7.8 earthquake rattled central Nepal; ground motion recorded in Kantipath, Kathmandu, 76.86 km east of the epicenter suggested that the low frequency component was dominant. We consider data from eight aftershocks following the Gorkha earthquake and analyze ground motion characteristics; we found that most of the ground motion records are dominated by low frequencies for events with a moment magnitude greater than 6. The Gorkha earthquake devastated hundreds of thousands of structures. In the countryside, and especially in rural mountainous areas, most of the buildings that collapsed were stone masonry constructions. Detailed damage assessments of stone masonry buildings in Harmi Gorkha had done, with an epicentral distance of about 17 km. Structures were categorized as large, medium and small depending on their plinth area size and number of stories. Most of the structures in the area were damaged; interestingly, all ridge-line structures were heavily damaged. Moreover, Schmidt hammer tests were undertaken to determine the compressive strength of stone masonry, brick masonry with mud mortar for normal buildings and historical monuments. The compressive strengths of stone and brick masonry were found to be 12.38 and 18.75 MPa, respectively. Historical structures constructed with special bricks had a compressive strength of 29.50 MPa. Pullout tests were also conducted to determine the stone masonry-mud mortar bond strength. The cohesive strength of mud mortar and the coefficient of friction were determined.

  11. Detailed analysis of radon flux studies at Australian uranium projects

    International Nuclear Information System (INIS)

    Mudd, Gavin M.

    2005-01-01

    The release of radon gas and radon progeny from uranium projects is a major issue during operation as well as for the design of rehabilitation works. In Australia, there have been a number of premining radon flux studies as part of the environmental investigation and potential development of recent uranium projects. There is also an increasing amount of operational data on radon fluxes and loads from various aspects of projects, such as tailings, waste rock and mills. Thus there exists much useful measured data which can be used to assess the design radon flux and load targets for rehabilitation. The main projects for which radon data exists includes Ranger, Olympic Dam, Beverley, Honeymoon, Jabiluka, Yeelirrie, Lake Way, Koongarra, Moline, Coronation Hill, Rockhole, Nabarlek, Rum Jungle, Port Pirie and Ben Lomond. To date, much of this data has not been systematically evaluated. The need to compile and assess this data is twofold. Firstly, to assess the loads released from uranium production as an input into life-cycle analyses of the nuclear fuel cycle, such as those undertaken by UNSCEAR and industry groups. Secondly, there is a need to set suitable design standards for radon flux for the rehabilitation of former and current uranium projects. This paper will present such a detailed compilation of radon fluxes and loads which can then be used as the basis for both life-cycle analyses as well as setting appropriate site-specific rehabilitation criteria for radon. The implications for former and current projects is then discussed as well as future data needs. Ultimately, there is a critical need for thorough baseline surveys prior to mining to ensure accurate assessments of changes to radon fluxes and loads. The data and analysis presented is considered applicable to all uranium projects in Australia, as well as being a useful model for considering such issues internationally

  12. Making detailed predictions makes (some) predictions worse

    Science.gov (United States)

    Kelly, Theresa F.

    In this paper, we investigate whether making detailed predictions about an event makes other predictions worse. Across 19 experiments, 10,895 participants, and 415,960 predictions about 724 professional sports games, we find that people who made detailed predictions about sporting events (e.g., how many hits each baseball team would get) made worse predictions about more general outcomes (e.g., which team would win). We rule out that this effect is caused by inattention or fatigue, thinking too hard, or a differential reliance on holistic information about the teams. Instead, we find that thinking about game-relevant details before predicting winning teams causes people to give less weight to predictive information, presumably because predicting details makes information that is relatively useless for predicting the winning team more readily accessible in memory and therefore incorporated into forecasts. Furthermore, we show that this differential use of information can be used to predict what kinds of games will and will not be susceptible to the negative effect of making detailed predictions.

  13. Detailed GEANT description of the SDC central calorimeters

    International Nuclear Information System (INIS)

    Glagolev, V.V.; Li, W.

    1994-01-01

    This article represents the very detailed simulation model of the SDC central calorimeters and some results which were obtained using that model. The central calorimeters structure was coded on the GEANT 3.15 base in the frame of the SDCSIM environment. The SDCSIM is the general shell for simulation of the SDC set-up. The calorimeters geometry has been coded according to the FNAL and ANL engineering drawings and engineering data file. SDC central calorimeters detailed description is extremely useful for different simulation tasks, for fast simulation program parameters tuning, for different geometry especially studying (local response nonuniformity from bulkheads in the e.m. calorimeter and from coil supports and many others) and for the interpretation of the experimental data from the calorimeters. This simulation model is very useful for tasks of the test beam modules calorimeter calibration and for calorimeter in situ calibration. 3 refs., 8 figs

  14. Fatigue-Prone Details in Steel Bridges

    Directory of Open Access Journals (Sweden)

    Mohsen Heshmati

    2012-11-01

    Full Text Available This paper reviews the results of a comprehensive investigation including more than 100 fatigue damage cases, reported for steel and composite bridges. The damage cases are categorized according to types of detail. The mechanisms behind fatigue damage in each category are identified and studied. It was found that more than 90% of all reported damage cases are of deformation-induced type and generated by some kind of unintentional or otherwise overlooked interaction between different load-carrying members or systems in the bridge. Poor detailing, with unstiffened gaps and abrupt changes in stiffness at the connections between different members were also found to contribute to fatigue cracking in many details.

  15. Memory for details with self-referencing.

    Science.gov (United States)

    Serbun, Sarah J; Shih, Joanne Y; Gutchess, Angela H

    2011-11-01

    Self-referencing benefits item memory, but little is known about the ways in which referencing the self affects memory for details. Experiment 1 assessed whether the effects of self-referencing operate only at the item, or general, level or whether they also enhance memory for specific visual details of objects. Participants incidentally encoded objects by making judgements in reference to the self, a close other (one's mother), or a familiar other (Bill Clinton). Results indicate that referencing the self or a close other enhances both specific and general memory. Experiments 2 and 3 assessed verbal memory for source in a task that relied on distinguishing between different mental operations (internal sources). The results indicate that self-referencing disproportionately enhances source memory, relative to conditions referencing other people, semantic, or perceptual information. We conclude that self-referencing not only enhances specific memory for both visual and verbal information, but can also disproportionately improve memory for specific internal source details.

  16. Local address and emergency contact details

    CERN Multimedia

    2013-01-01

    The HR Department would like to remind members of the personnel that they are responsible for ensuring that their personal data concerning local address and preferred emergency contact details remains valid and up-to-date.   Both are easily accessible via the links below: Local address: https://edh.cern.ch/Document/Personnel/LocalAddressChange   Emergency contacts: https://edh.cern.ch/Document/Personnel/EC   Please take a few minutes to check your details and modify if necessary. Thank you in advance. HR Department Head Office

  17. Detail in architecture: Between arts & crafts

    Science.gov (United States)

    Dulencin, Juraj

    2016-06-01

    Architectural detail represents an important part of architecture. Not only can it be used as an identifier of a specific building but at the same time enhances the experience of the realized project. Within it lie the signs of a great architect and clues to understanding his or her way of thinking. It is therefore the central topic of a seminar offered to architecture students at the Brno University of Technology. During the course of the semester-long class the students acquaint themselves with atypical architectural details of domestic and international architects by learning to read them, understand them and subsequently draw them by creating architectural blueprints. In other words, by general analysis of a detail the students learn theoretical thinking of its architect who, depending on the nature of the design, had to incorporate a variety of techniques and crafts. Students apply this analytical part to their own architectural detail design. The methodology of the seminar consists of experiential learning by project management and is complemented by a series of lectures discussing a diversity of details as well as materials and technologies required to implement it. The architectural detail design is also part of students' bachelors thesis, therefore, the realistic nature of their blueprints can be verified in the production process of its physical counterpart. Based on their own documentation the students choose the most suitable manufacturing process whether it is supplied by a specific technology or a craftsman. Students actively participate in the production and correct their design proposals in real scale with the actual material. A student, as a future architect, stands somewhere between a client and an artisan, materializes his or her idea and adjusts the manufacturing process so that the final detail fulfills aesthetic consistency and is in harmony with its initial concept. One of the very important aspects of the design is its economic cost, an

  18. Strengthening of competence planning truss through instructional media development details

    Science.gov (United States)

    Handayani, Sri; Nurcahyono, M. Hadi

    2017-03-01

    Competency-Based Learning is a model of learning in which the planning, implementation, and assessment refers to the mastery of competencies. Learning in lectures conducted in the framework for comprehensively realizing student competency. Competence means the orientation of the learning activities in the classroom must be given to the students to be more active learning, active search for information themselves and explore alone or with friends in learning activities in pairs or in groups, learn to use a variety of learning resources and printed materials, electronic media, as well as environment. Analysis of learning wooden structure known weakness in the understanding of the truss detail. Hence the need for the development of media that can provide a clear picture of what the structure of the wooden horses and connection details. Development of instructional media consisted of three phases of activity, namely planning, production and assessment. Learning Media planning should be tailored to the needs and conditions necessary to provide reinforcement to the mastery of competencies, through the table material needs. The production process of learning media is done by using hardware (hardware) and software (software) to support the creation of a medium of learning. Assessment of the media poduk yan include feasibility studies, namely by subject matter experts, media experts, while testing was done according to the student's perception of the product. The results of the analysis of the materials for the instructional aspects of the results obtained 100% (very good) and media analysis for the design aspects of the media expressed very good with a percentage of 88.93%. While the analysis of student perceptions expressed very good with a percentage of 84.84%. Media Learning Truss Details feasible and can be used in the implementation of learning wooden structure to provide capacity-building in planning truss

  19. Big Heads, Small Details and Autism

    Science.gov (United States)

    White, Sarah; O'Reilly, Helen; Frith, Uta

    2009-01-01

    Autism is thought to be associated with a bias towards detail-focussed processing. While the cognitive basis remains controversial, one strong hypothesis is that there are high processing costs associated with changing from local into global processing. A possible neural mechanism underlying this processing style is abnormal neural connectivity;…

  20. New details emerge from the Einstein files

    CERN Multimedia

    Overbye, D

    2002-01-01

    For many years the FBI spied on Einstein. New details of this surveilance are emerging in "The Einstein File: J. Edgar Hoover's Secret War Against the World's Most Famous Scientist," by Fred Jerome, who sued the government with the help of the Public Citizen Litigation Group to obtain a less censored version of the file (1 page).

  1. Detailed numerical simulations of laser cooling processes

    Science.gov (United States)

    Ramirez-Serrano, J.; Kohel, J.; Thompson, R.; Yu, N.

    2001-01-01

    We developed a detailed semiclassical numerical code of the forces applied on atoms in optical and magnetic fields to increase the understanding of the different roles that light, atomic collisions, background pressure, and number of particles play in experiments with laser cooled and trapped atoms.

  2. The wonders of flap endonucleases: structure, function, mechanism and regulation.

    Science.gov (United States)

    Finger, L David; Atack, John M; Tsutakawa, Susan; Classen, Scott; Tainer, John; Grasby, Jane; Shen, Binghui

    2012-01-01

    Processing of Okazaki fragments to complete lagging strand DNA synthesis requires coordination among several proteins. RNA primers and DNA synthesised by DNA polymerase α are displaced by DNA polymerase δ to create bifurcated nucleic acid structures known as 5'-flaps. These 5'-flaps are removed by Flap Endonuclease 1 (FEN), a structure-specific nuclease whose divalent metal ion-dependent phosphodiesterase activity cleaves 5'-flaps with exquisite specificity. FENs are paradigms for the 5' nuclease superfamily, whose members perform a wide variety of roles in nucleic acid metabolism using a similar nuclease core domain that displays common biochemical properties and structural features. A detailed review of FEN structure is undertaken to show how DNA substrate recognition occurs and how FEN achieves cleavage at a single phosphate diester. A proposed double nucleotide unpairing trap (DoNUT) is discussed with regards to FEN and has relevance to the wider 5' nuclease superfamily. The homotrimeric proliferating cell nuclear antigen protein (PCNA) coordinates the actions of DNA polymerase, FEN and DNA ligase by facilitating the hand-off intermediates between each protein during Okazaki fragment maturation to maximise through-put and minimise consequences of intermediates being released into the wider cellular environment. FEN has numerous partner proteins that modulate and control its action during DNA replication and is also controlled by several post-translational modification events, all acting in concert to maintain precise and appropriate cleavage of Okazaki fragment intermediates during DNA replication.

  3. Structural, intramolecular hydrogen bonding and vibrational studies ...

    Indian Academy of Sciences (India)

    An extensive theoretical study on the molecular structure and vibrational analysis of 3-amino-4- methoxy benzamide (3A4MBA) was undertaken using density functional theoretical (DFT) method. The possibility of formation of intramolecular hydrogen bonding was identified from structural parameter analysis and confirmed ...

  4. Structural, intramolecular hydrogen bonding and vibrational studies

    Indian Academy of Sciences (India)

    An extensive theoretical study on the molecular structure and vibrational analysis of 3-amino-4- methoxy benzamide (3A4MBA) was undertaken using density functional theoretical (DFT) method. The possibility of formation of intramolecular hydrogen bonding was identified from structural parameter analysis and confirmed ...

  5. Detailed gravimetric geoid computations in North America

    Science.gov (United States)

    Marsh, J. G.; Chang, E. S.

    1976-01-01

    A detailed gravimetric geoid has been computed for the Eastern United States and the Northwestern Atlantic Ocean by combining the Goddard Space Flight Center GEM-8 earth gravity model with the available 15 x 15 arcmin and 1 x 1 deg mean free air surface gravity observations. The short wavelength undulations were computed by applying Stokes' formula to the 15 x 15 arcmin and 1 x 1 deg surface data. The long wavelength undulations were provided by the GEM-8 model. The gravimetric geoid has been compared with Geoceiver derived and astrogeodetically determined geoid heights in the United States and the rms agreement is on the order of 1.5 meters. Excellent agreement in shape has been found between the detailed geoid and geoidal profiles derived from GEOS-III altimeter data in the Northwest Atlantic Ocean.

  6. Technology of Strengthening Steel Details by Surfacing Composite Coatings

    Science.gov (United States)

    Burov, V. G.; Bataev, A. A.; Rakhimyanov, Kh M.; Mul, D. O.

    2016-04-01

    The article considers the problem of forming wear resistant meal ceramic coatings on steel surfaces using the results of our own investigations and the analysis of achievements made in the country and abroad. Increasing the wear resistance of surface layers of steel details is achieved by surfacing composite coatings with carbides or borides of metals as disperse particles in the strengthening phase. The use of surfacing on wearing machine details and mechanisms has a history of more than 100 years. But still engineering investigations in this field are being conducted up to now. The use of heating sources which provide a high density of power allows ensuring temperature and time conditions of surfacing under which composites with peculiar service and functional properties are formed. High concentration of energy in the zone of melt, which is created from powder mixtures and the hardened surface layer, allows producing the transition zone between the main material and surfaced coating. Surfacing by the electron beam directed from vacuum to the atmosphere is of considerable technological advantages. They give the possibility of strengthening surface layers of large-sized details by surfacing powder mixtures without their preliminary compacting. A modified layer of the main metal with ceramic particles distributed in it is created as a result of heating surfaced powders and the detail surface layer by the electron beam. Technology of surfacing allows using powders of refractory metals and graphite in the composition of powder mixtures. They interact with one another and form the particles of the hardening phase of the composition coating. The chemical composition of the main and surfaced materials is considered to be the main factor which determines the character of metallurgical processes in local zones of melt as well as the structure and properties of surfaced composition.

  7. Hydraulic structures

    CERN Document Server

    Chen, Sheng-Hong

    2015-01-01

    This book discusses in detail the planning, design, construction and management of hydraulic structures, covering dams, spillways, tunnels, cut slopes, sluices, water intake and measuring works, ship locks and lifts, as well as fish ways. Particular attention is paid to considerations concerning the environment, hydrology, geology and materials etc. in the planning and design of hydraulic projects. It also considers the type selection, profile configuration, stress/stability calibration and engineering countermeasures, flood releasing arrangements and scouring protection, operation and maintenance etc. for a variety of specific hydraulic structures. The book is primarily intended for engineers, undergraduate and graduate students in the field of civil and hydraulic engineering who are faced with the challenges of extending our understanding of hydraulic structures ranging from traditional to groundbreaking, as well as designing, constructing and managing safe, durable hydraulic structures that are economical ...

  8. Detailed Sensory Memory, Sloppy Working Memory

    OpenAIRE

    Sligte, Ilja G.; Vandenbroucke, Annelinde R. E.; Scholte, H. Steven; Lamme, Victor A. F.

    2010-01-01

    Visual short-term memory (VSTM) enables us to actively maintain information in mind for a brief period of time after stimulus disappearance. According to recent studies, VSTM consists of three stages - iconic memory, fragile VSTM, and visual working memory - with increasingly stricter capacity limits and progressively longer lifetimes. Still, the resolution (or amount of visual detail) of each VSTM stage has remained unexplored and we test this in the present study. We presented people with a...

  9. Reserving by detailed conditioning on individual claim

    Science.gov (United States)

    Kartikasari, Mujiati Dwi; Effendie, Adhitya Ronnie; Wilandari, Yuciana

    2017-03-01

    The estimation of claim reserves is an important activity in insurance companies to fulfill their liabilities. Recently, reserving method of individual claim have attracted a lot of interest in the actuarial science, which overcome some deficiency of aggregated claim method. This paper explores the Reserving by Detailed Conditioning (RDC) method using all of claim information for reserving with individual claim of liability insurance from an Indonesian general insurance company. Furthermore, we compare it to Chain Ladder and Bornhuetter-Ferguson method.

  10. A Detailed Study of Sonar Tomographic Imaging

    Science.gov (United States)

    2013-08-01

    attenuation factor to reduce the effect of the specular reflections, while for the 2DIFT BPA approach the degrading effect from these reflections is...they make a good case to compare the different requirements and performances of the two BPA approaches without too many of the non-ideal effects of...tuning. However, this detailed tuning of the factor is outside the scope of the current Report. For the 2DIFT BPA approach, the degrading effect from

  11. Steric Hindrance as a Basis for Structure-Based Design of Selective Inhibitors of Protein-Tyrosine Phosphatases

    DEFF Research Database (Denmark)

    Iversen, L. F.; Andersen, H. S.; Møller, K. B.

    2001-01-01

    Utilizing structure-based design, we have previously demonstrated that it is possible to obtain selective inhibitors of protein-tyrosine phosphatase 1B (PTP1B). A basic nitrogen was introduced into a general PTP inhibitor to form a salt bridge to Asp48 in PTP1B and simultaneously cause repulsion...... residues in the same position in other PTPs cause steric hindrance and reduced substrate recognition capacity [Peters, G. H., et al. (2000) J. Biol. Chem. 275, 18201−18209]. The current study was undertaken to investigate the feasibility of structure-based design, utilizing these differences...... in accessibility to the active site among various PTPs. We show that a general, low-molecular weight PTP inhibitor can be developed into a highly selective inhibitor for PTP1B and TC-PTP by introducing a substituent, which is designed to address the region around residues 258 and 259. Detailed enzyme kinetic...

  12. Investigation on Strengthening Approaches Adopted for Poorly Detailed RC Corbels

    Directory of Open Access Journals (Sweden)

    Ram Chandra Neupane

    2017-05-01

    Full Text Available Poor detailing of the position of bearing pad over reinforced concrete (RC corbel may lead to premature failure, which is undesired and structurally vulnerable. An appropriate retrofitting solution is necessary to ensure the functionality of such RC corbels. Considering the growing popularity of external carbon fiber-reinforced polymer (CFRP in retrofitting, this research examines the effectiveness of an externally wrapped unidirectional CFRP sheet and compares its performance against traditional retrofitting methods. Moreover, it is intended to fulfill the lack of extensive research on external CFRP application for corbel strengthening. A total of eight medium-scale corbel specimens were tested on vertical load. Observed premature failure due to placing the bearing pad near the edge of corbel was verified and the effectiveness of the proposed structural strengthening solutions was studied. Experimental results show that although the loading capacity of the damaged corbel due to the poor detailing of bearing pad position could not be fully recovered, the external CFRP wrapping method demonstrated superior performance over RC jacketing and was able to prevent localized failure. Further study based on non-linear 3D finite element analysis (FEA was carried out to identify the governing parameters of each retrofitting solution. Numerical studies suggested important parameters of various retrofitting alternatives for higher capacity assurance.

  13. Modelling a sector undergoing structural change: The case of Danish energy supply

    DEFF Research Database (Denmark)

    Klinge Jacobsen, Henrik

    2000-01-01

    for the demand of the produced goods. Environmental priorities and targets for emission reductions are important for defining energy policy in Denmark. As the energy supply sector at present is a major contributor to emissions of CO2 and SO2, knowledge of this sector is vital for reducing these emissions......This paper examines structural change in the power and heat producing sector (energy supply) and its implications for the economy. An integrated approach is used to describe the interactions between this sector and the rest of the economy. Thus, a very detailed model of the sector for Denmark has...... been linked to a macroeconometric model of the Danish economy. It is argued that analysing sectors that undergo radical changes, for example, the energy supply sector should be undertaken by using a model that describes the technological and organisational changes in production along with implications...

  14. Academic detailing to teach aging and geriatrics.

    Science.gov (United States)

    Duckett, Ashley; Cuoco, Theresa; Pride, Pamela; Wiley, Kathy; Iverson, Patty J; Marsden, Justin; Moran, William; Caton, Cathryn

    2015-01-01

    Geriatric education is a required component of internal medicine training. Work hour rules and hectic schedules have challenged residency training programs to develop and utilize innovative teaching methods. In this study, the authors examined the use of academic detailing as a teaching intervention in their residents' clinic and on the general medicine inpatient wards to improve clinical knowledge and skills in geriatric care. The authors found that this teaching method enables efficient, directed education without disrupting patient care. We were able to show improvements in medical knowledge as well as self-efficacy across multiple geriatric topics.

  15. Water cycle algorithm: A detailed standard code

    Science.gov (United States)

    Sadollah, Ali; Eskandar, Hadi; Lee, Ho Min; Yoo, Do Guen; Kim, Joong Hoon

    Inspired by the observation of the water cycle process and movements of rivers and streams toward the sea, a population-based metaheuristic algorithm, the water cycle algorithm (WCA) has recently been proposed. Lately, an increasing number of WCA applications have appeared and the WCA has been utilized in different optimization fields. This paper provides detailed open source code for the WCA, of which the performance and efficiency has been demonstrated for solving optimization problems. The WCA has an interesting and simple concept and this paper aims to use its source code to provide a step-by-step explanation of the process it follows.

  16. Diabatic orbitals in nuclear structure

    International Nuclear Information System (INIS)

    Bengtsson, Tord.

    1989-09-01

    The importance of wavefunctions in detailed nuclear structure calculations is emphasized. A scheme to enable studies of the development of wavefunctions as the hamiltonian gradually changes is presented. By using this scheme, nuclear structure properties can be calculated with great detail. (author)

  17. Detailed Chemical Kinetic Modeling of Hydrazine Decomposition

    Science.gov (United States)

    Meagher, Nancy E.; Bates, Kami R.

    2000-01-01

    The purpose of this research project is to develop and validate a detailed chemical kinetic mechanism for gas-phase hydrazine decomposition. Hydrazine is used extensively in aerospace propulsion, and although liquid hydrazine is not considered detonable, many fuel handling systems create multiphase mixtures of fuels and fuel vapors during their operation. Therefore, a thorough knowledge of the decomposition chemistry of hydrazine under a variety of conditions can be of value in assessing potential operational hazards in hydrazine fuel systems. To gain such knowledge, a reasonable starting point is the development and validation of a detailed chemical kinetic mechanism for gas-phase hydrazine decomposition. A reasonably complete mechanism was published in 1996, however, many of the elementary steps included had outdated rate expressions and a thorough investigation of the behavior of the mechanism under a variety of conditions was not presented. The current work has included substantial revision of the previously published mechanism, along with a more extensive examination of the decomposition behavior of hydrazine. An attempt to validate the mechanism against the limited experimental data available has been made and was moderately successful. Further computational and experimental research into the chemistry of this fuel needs to be completed.

  18. Detailed balance of the Feynman micromotor

    Science.gov (United States)

    Abbott, Derek; Davis, Bruce R.; Parrondo, Juan M. R.

    1999-09-01

    One existing implication of micromotors is that they can be powered by rectifying non-equilibrium thermal fluctuations or mechanical vibrations via the so-called Feynman- micromotor. An example of mechanical rectification is found in the batteryless wristwatch. The original concept was described in as early as 1912 by Smoluchowski and was later revisited in 1963 by Feynman, in the context of rectifying thermal fluctuations to obtain useful motion. It has been shown that, although rectification is impossible at equilibrium, it is possible for the Feynman-micromotor to perform work under non-equilibrium conditions. These concepts can now be realized by MEMS technology and may have exciting implications in biomedicine - where the Feynman- micromotor can be used to power a smart pill, for example. Previously, Feynman's analysis of the motor's efficiency has been shown to be flawed by Parrondo and Espanol. We now show there are further problems in Feynman's treatment of detailed balance. In order to design and understand this device correctly, the equations of detailed balance must be found. Feynman's approach was to use probabilities based on energies and we show that this is problematic. In this paper, we demonstrate corrected equations using level crossing probabilities instead. A potential application of the Feynman-micromotor is a batteryless nanopump that consists of a small MEMS chip that adheres to the skin of a patient and dispense nanoliter quantities of medication. Either mechanical or thermal rectification via a Feynman- micromotor, as the power source, is open for possible investigation.

  19. Calibrating Detailed Chemical Analysis of M dwarfs

    Science.gov (United States)

    Veyette, Mark; Muirhead, Philip Steven; Mann, Andrew; Brewer, John; Allard, France; Homeier, Derek

    2018-01-01

    The ability to perform detailed chemical analysis of Sun-like F-, G-, and K-type stars is a powerful tool with many applications including studying the chemical evolution of the Galaxy, assessing membership in stellar kinematic groups, and constraining planet formation theories. Unfortunately, complications in modeling cooler stellar atmospheres has hindered similar analysis of M-dwarf stars. Large surveys of FGK abundances play an important role in developing methods to measure the compositions of M dwarfs by providing benchmark FGK stars that have widely-separated M dwarf companions. These systems allow us to empirically calibrate metallicity-sensitive features in M dwarf spectra. However, current methods to measure metallicity in M dwarfs from moderate-resolution spectra are limited to measuring overall metallicity and largely rely on astrophysical abundance correlations in stellar populations. In this talk, I will discuss how large, homogeneous catalogs of precise FGK abundances are crucial to advancing chemical analysis of M dwarfs beyond overall metallicity to direct measurements of individual elemental abundances. I will present a new method to analyze high-resolution, NIR spectra of M dwarfs that employs an empirical calibration of synthetic M dwarf spectra to infer effective temperature, Fe abundance, and Ti abundance. This work is a step toward detailed chemical analysis of M dwarfs at a similar precision achieved for FGK stars.

  20. Detailed Electrochemical Characterisation of Large SOFC Stacks

    DEFF Research Database (Denmark)

    Mosbæk, Rasmus Rode; Hjelm, Johan; Barfod, R.

    2012-01-01

    As solid oxide fuel cell (SOFC) technology is moving closer to a commercial break through, lifetime limiting factors, determination of the limits of safe operation and methods to measure the “state-of-health” of operating cells and stacks are becoming of increasing interest. This requires applica...... out at a range of ac perturbation amplitudes in order to investigate linearity of the response and the signal-to-noise ratio. Separation of the measured impedance into series and polarisation resistances was possible....... to analyse in detail. Today one is forced to use mathematical modelling to extract information about existing gradients and cell resistances in operating stacks, as mature techniques for local probing are not available. This type of spatially resolved information is essential for model refinement...... and validation, and helps to further the technological stack development. Further, more detailed information obtained from operating stacks is essential for developing appropriate process monitoring and control protocols for stack and system developers. An experimental stack with low ohmic resistance from Topsoe...