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Sample records for active tilting-pad journal

  1. Exploring integral controllers in actively-lubricated tilting-pad journal bearings

    DEFF Research Database (Denmark)

    Salazar, Jorge Andrés González; Santos, Ilmar

    2015-01-01

    investigation of integral controllers for feedback-controlled lubrication with the aim of: a) presetting the static journal center and consequently exploring the changes of bearing dynamic properties; b) obtaining an integral controller capable of re-positioning the static journal eccentricity for matching......Active tilting-pad journal bearings with radial oil injection combine good stability properties of conventional tilting-pad journal bearings with the capability of improving their dynamic properties even more by control techniques. The main contribution of this work is the experimental...

  2. Tilting-Pad Journal Bearings with Active Lubrication Applied as Calibrated Shakers: Theory and Experiment

    DEFF Research Database (Denmark)

    Cerda Varela, Alejandro Javier; Santos, Ilmar

    2014-01-01

    In recent years, a continuous research effort has transformed the conventional tilting-pad journal bearing into a mechatronic machine element. The addition of electromechanical elements provides the possibility of generating controllable forces over the rotor as a function of a suitable control...... directly into the bearing clearance. The injected flow is controlled by means of a servovalve. The theoretical model includes the dynamics of servovalves and pipelines using a lumped parameter approach, whereas the coupling between the hydraulic system and the bearing oil film is modeled using a modified...

  3. Active tilting-pad journal bearings supporting flexible rotors: Part II–The model-based feedback-controlled lubrication

    DEFF Research Database (Denmark)

    Salazar, Jorge Andrés González; Santos, Ilmar

    2017-01-01

    This is part II of a twofold paper series dealing with the design and implementation of model-based controllers meant for assisting the hybrid and developing the feedback-controlled lubrication regimes in active tilting pad journal bearings (active TPJBs). In both papers theoretical and experimen...... derived in part I. Results show further suppression of resonant vibrations when using the feedback-controlled or active lubrication, overweighting the reduction already achieved with hybrid lubrication, thus improving the whole machine dynamic performance.......This is part II of a twofold paper series dealing with the design and implementation of model-based controllers meant for assisting the hybrid and developing the feedback-controlled lubrication regimes in active tilting pad journal bearings (active TPJBs). In both papers theoretical...... and experimental analyses are presented with focus on the reduction of rotor lateral vibration. This part is devoted to synthesising model-based LQG optimal controllers (LQR regulator + Kalman Filter) for the feedback-controlled lubrication and is based upon the mathematical model of the rotor-bearing system...

  4. Dynamic characteristics of polymer faced tilting pad journal bearings

    DEFF Research Database (Denmark)

    Simmons, Gregory F.; Cerda Varela, Alejandro Javier; Santos, Ilmar

    2014-01-01

    Dynamic characteristics of polymer faced tilting pad journal bearings are presented. Investigations are conducted using a single pad, load on pad configuration over a range of shaft speeds and loads. Two polyether ether ketone (PEEK) faced pads, one polytetrafluoroethylene (PTFE) faced pad and two...

  5. Modeling of Tilting-Pad Journal Bearings with Transfer Functions

    Directory of Open Access Journals (Sweden)

    J. A. Vázquez

    2001-01-01

    Full Text Available Tilting-pad journal bearings are widely used to promote stability in modern rotating machinery. However, the dynamics associated with pad motion alters this stabilizing capacity depending on the operating speed of the machine and the bearing geometric parameters, particularly the bearing preload. In modeling the dynamics of the entire rotor-bearing system, the rotor is augmented with a model of the bearings. This model may explicitly include the pad degrees of freedom or may implicitly include them by using dynamic matrix reduction methods. The dynamic reduction models may be represented as a set of polynomials in the eigenvalues of the system used to determine stability. All tilting-pad bearings can then be represented by a fixed size matrix with polynomial elements interacting with the rotor. This paper presents a procedure to calculate the coefficients of polynomials for implicit bearing models. The order of the polynomials changes to reflect the number of pads in the bearings. This results in a very compact and computationally efficient method for fully including the dynamics of tilting-pad bearings or other multiple degrees of freedom components that interact with rotors. The fixed size of the dynamic reduction matrices permits the method to be easily incorporated into rotor dynamic stability codes. A recursive algorithm is developed and presented for calculating the coefficients of the polynomials. The method is applied to stability calculations for a model of a typical industrial compressor.

  6. Feedback-controlled lubrication for reducing the lateral vibration of flexible rotors supported by tilting-pad journal bearings

    DEFF Research Database (Denmark)

    Salazar, Jorge Andrés González; Santos, Ilmar

    2015-01-01

    function is optimized in the stabilizing gain domain and then chosen from a subdomain imposed by servovalve restrictions. This work demonstrates enhancements of the dynamic response of flexible rotor-bearing systems supported by an active tilting-pad journal bearing by means of the feedback......The feedback-controlled lubrication regime, based on a model-free designed proportional–derivative controller, is experimentally investigated in a flexible rotor mounted on an actively-lubricated tilting-pad journal bearing. With such a lubrication regime, both the resulting pressure distribution...

  7. Discontinuity effects in dynamically loaded tilting pad journal bearings

    DEFF Research Database (Denmark)

    Thomsen, Kim; Klit, Peder; Vølund, Anders

    2011-01-01

    This paper describes two discontinuity effects that can occur when modelling radial tilting pad bearings subjected to high dynamic loads. The first effect to be treated is a pressure build-up discontinuity effect. The second effect is a contact-related discontinuity that disappears when a contact...... force is included in the theoretical model. Methods for avoiding the pressure build-up discontinuity effect are proposed....

  8. On the simplifications for the thermal modeling of tilting-pad journal bearings under thermoelastohydrodynamic regime

    DEFF Research Database (Denmark)

    Cerda Varela, Alejandro Javier; Fillon, Michel; Santos, Ilmar

    2012-01-01

    formulation for inclusion of the heat transfer effects between oil film and pad surface. Such simplified approach becomes necessary when modeling the behavior of tilting-pad journal bearings operating on controllable lubrication regime. Three different simplified heat transfer models are tested, by comparing...... are strongly dependent on the Reynolds number for the oil flow in the bearing. For bearings operating in laminar regime, the decoupling of the oil film energy equation solving procedure, with no heat transfer terms included, with the pad heat conduction problem, where the oil film temperature is applied......The relevance of calculating accurately the oil film temperature build up when modeling tilting-pad journal bearings is well established within the literature on the subject. This work studies the feasibility of using a thermal model for the tilting-pad journal bearing which includes a simplified...

  9. Establishment of Approximate Analytical Model of Oil Film Force for Finite Length Tilting Pad Journal Bearings

    Directory of Open Access Journals (Sweden)

    Yongliang Wang

    2015-01-01

    Full Text Available Tilting pad bearings offer unique dynamic stability enabling successful deployment of high-speed rotating machinery. The model of dynamic stiffness, damping, and added mass coefficients is often used for rotordynamic analyses, and this method does not suffice to describe the dynamic behaviour due to the nonlinear effects of oil film force under larger shaft vibration or vertical rotor conditions. The objective of this paper is to present a nonlinear oil force model for finite length tilting pad journal bearings. An approximate analytic oil film force model was established by analysing the dynamic characteristic of oil film of a single pad journal bearing using variable separation method under the dynamic π oil film boundary condition. And an oil film force model of a four-tilting-pad journal bearing was established by using the pad assembly technique and considering pad tilting angle. The validity of the model established was proved by analyzing the distribution of oil film pressure and the locus of journal centre for tilting pad journal bearings and by comparing the model established in this paper with the model established using finite difference method.

  10. Fault diagnosis for tilting-pad journal bearing based on SVD and LMD

    Directory of Open Access Journals (Sweden)

    Zhang Xiaotao

    2016-01-01

    Full Text Available Aiming at fault diagnosis for tilting-pad journal bearing with fluid support developed recently, a new method based on singular value decomposition (SVD and local mean decomposition (LMD is proposed. First, the phase space reconstruction of Hankel matrix and SVD method are used as pre-filter process unit to reduce the random noises in the original signal. Then the purified signal is decomposed by LMD into a series of production functions (PFs. Based on PFs, time frequency map and marginal spectrum can be obtained for fault diagnosis. Finally, this method is applied to numerical simulation and practical experiment data. The results show that the proposed method can effectively detect fault features of tilting-pad journal bearing.

  11. Performance Improvement of tilting-pad journal bearings by means of controllable lubrication

    DEFF Research Database (Denmark)

    Cerda, Alejandro; Santos, Ilmar

    2012-01-01

    Tilting-Pad Journal Bearings (TPJB) are commonly used on high-performance turbomachinery due to their excellent stability properties at high speed when compared to other designs for oil film bearings. Hence, efforts have been made to improve the accuracy for the available models for these mechani...... is used to show the benefits of applying a controllable lubrication regime, by means of the modification of the thermal and dynamic behaviour of the bearing....

  12. CFD Analysis of A Starved Four-Pad Tilting-Pad Journal Bearing with An Elastic Support of Pads

    Science.gov (United States)

    Parovay, E. F.; Falaleev, S. V.

    2018-01-01

    Tilting-pad journal bearings are widely used in technics. Oil starvation operation regime is not common for hydrodynamic bearings. However, correctly designed low-flow journal bearing have to operate efficiently and consistently on high rotor speeds. An elastic support of bearing pads is a set of elastic pins made of steel. Elastic support allows pads to self-align and achieve an optimal operational mode. The article presents the thermohydrodynamic performance of an axial journal bearing. The study deals with 60 mm diameter four-pad tilting-pad journal bearing, submitted to a static load varying from 1000 to 30000 N with a rotating speed varying from 1000 to 10000 rpm. The investigation focuses on numerical studying the characteristics of low-flow tilting-pad journal bearings under oil starvation conditions. Dependencies of the bearing performance on the load, rotational speed of the shaft, and the size of the radial clearance are presented.

  13. Nonlinear Dynamics Analysis of Tilting Pad Journal Bearing-Rotor System

    Directory of Open Access Journals (Sweden)

    Jiayang Ying

    2011-01-01

    Full Text Available The nonlinear dynamics theory is increasingly applied in the dynamics analysis of tilting pad journal bearing-rotor system. However, extensive work on system dynamics done previously neglects the influence caused by the moment of inertia of the pad. In this paper, a comparison is made between the responses of the rotor in the bearings with and without pad inertia effect. Taking the Jeffcott rotor system as an example, the characteristics of bearing-rotor system, such as bifurcation diagram, cycle response, frequency spectrum, phase trajectories, and Poincaré maps, were attained within a certain rotation rate range. The pivotal oil-film force of tilting pad journal bearing was calculated by database method. The results directly demonstrate that considering the influence of the pad moment of inertia, system dynamics characteristics are found more complicated when rotor-bearing system works around natural frequency and system bifurcation is observed forward when rotor-bearing system works on high-speed range.

  14. Dynamic Coefficients of a Tilting Pad With Active Lubrication: Comparison Between Theoretical and Experimental Results

    DEFF Research Database (Denmark)

    Cerda Varela, Alejandro Javier; Santos, Ilmar

    2015-01-01

    experimental results from the literature for industrial grade passive tilting pad bearings. This initial validation is followed by a comparison with experimental identification results obtained from a test rig featuring the active bearing design. Good overall agreement is observed in both configurations...

  15. The Impact of Convective Fluid Inertia Forces on Operation of Tilting-Pad Journal Bearings

    Directory of Open Access Journals (Sweden)

    Thomas Hagemann

    2017-01-01

    Full Text Available This paper presents a combination of experimental data, CFD analyses, and bearing code predictions on emergence of convective inertia fluid forces within the lube oil flow of tilting-pad journal bearings. Concordantly, experimental data and CFD analyses show a significant rise of local pressure at the transition between inlet and leading edge of tilting-pad, especially for high-speed applications with surface speeds up to 100 m/s. This effect can be related to convective inertia forces within fluid flow as cross-sections and flow character rapidly change at the pad entrance. An energy-based approach is implemented in the bearing code in order to provide enhanced boundary conditions for Reynolds equation considering this effect. As a result, predictions of bearing code achieved significant improved correlation with measured pressure distributions and CFD-data. Further, beside the local influence, a nonnegligible impact on characteristic parameters of bearing operation such as maximum temperature and stiffness and damping coefficients is observed. Finally, the results are critically analyzed and requirements to gain more distinct and reliable data are specified.

  16. Feedback-Controlled Lubrication for Reducing the Lateral Vibration of Flexible Rotors supported by Tilting-Pad Journal Bearings

    DEFF Research Database (Denmark)

    Salazar, Jorge Andrés González; Santos, Ilmar

    2014-01-01

    In this work, the feedback-controlled lubrication regime, based on a model-free designed proportional-derivative (PD) controller, is studied and experimentally tested in a flexible rotor mounted on an actively-lubricated tilting-pad journal bearing (active TPJB). With such a lubrication regime...... to experimentally characterized multi-input multi-output systems is used to determine the stabilizing PD gain domain. The main contribution of this work is to demonstrate the enhancement of the dynamic response of a flexible rotor-bearing system supported by an active TPJB by means of the feedback...... are used as actuators and the flexible rotor lateral movements as feedback control signals. To synthesise the PD controller gains an objective function is optimized in the stabilizing gain domain and then chosen from a subdomain imposed by the servovalves restrictions. The D-decomposition approach expanded...

  17. Component level study of an actively lubricated LEG Tilting Pad Bearing: Theory and experiment

    DEFF Research Database (Denmark)

    Cerda Varela, Alejandro Javier; Santos, Ilmar Ferreira

    2018-01-01

    portrays the first experimental study for the“proof of concept” of this configuration, as well as a comparison with theoretical results. A simplified setup, featuring a rigid rotor supported by a single pad arrangement is the subject of study. The obtained results prove the viability of the proposed active...... bearing design, validate the available simulation tool and exemplify on a conceptual level the operational benefits from introducing this technology into standard LEG Tilting Pad Bearings....

  18. Study on the prevention of spragging in a tilting pad journal bearing using the variation of preload

    International Nuclear Information System (INIS)

    Yang, Seong Heon; Park, Chul Hyun; Ha, Hyun Cheon; Kim, Chae Sil

    2001-01-01

    Tilting pad journal bearings have been widely used in a high speed rotating machinery, such as steam turbines and gas turbines, owing to their inherent stability characteristics. However, some peculiar fatigue failure in the babbitt metal due to spragging has been continuously occurred at the leading edge of the upper pads. The spragging is defined as the pad vibration initiated on the upper unloaded pads in tilting pad journal bearing. This paper describes both several kinds of bearing failure related with spragging and the theoretical investigation on the prevention of the spragging phenomenon using the variation of preload. Results show that positive preload(m>0.5) assures all pads remain statically loaded under all operating conditions. For the change of design parameter to prevent spragging, thermo-hydrodynamic lubrication and rotor dynamic analysis were performed to verify temperature limitation on bearing and vibration problems on rotor bearing system

  19. Characterization of High-Power Turbomachinery Tilting Pad Journal Bearings: First Results Obtained on a Novel Test Bench

    Directory of Open Access Journals (Sweden)

    Enrico Ciulli

    2018-01-01

    Full Text Available Tilting pad journal bearings are usually employed in turbomachines for their stable behavior at high rotational speeds. Devoted test rigs have been realized to validate the predictions of theoretical models. However, the design of new high-performance and large-size bearings needs to be supported by experimental investigations on high-performance large test rigs. The main characteristics of a recently built facility for testing large tilting pad journal bearings with diameters from 150 to 300 mm are described in this work. The test rig is versatile and can be used to test bearings of different size, configurations and to investigate the influence of many parameters, even the effect of misalignment. Sample results of the static characterization of a four-pad high-performance tilting pad journal bearing are reported evidencing some transient effects. A few sample dynamic results are also reported. The presented experimental results demonstrated the capabilities of the rig for investigating the static and the dynamic characteristics of the bearings accurately measuring slow and fast variables.

  20. Steady state characteristics of a tilting pad journal bearing with controllable lubrication: Comparison between theoretical and experimental results

    DEFF Research Database (Denmark)

    Cerda Varela, Alejandro Javier; Nielsen, Bo Bjerregaard; Santos, Ilmar

    2013-01-01

    direction. The modification of the injection pressure enables to modify the bearing static and dynamic properties according to the operational needs. The results presented are obtained using a theoretical model, which considers all the effects that determine the bearing behavior (controllable......This paper is aimed at presenting results regarding the static and thermal behavior of a tilting-pad journal bearing operating under controllable regime. The bearing is rendered controllable by injecting high pressure oil into the clearance using holes drilled across the bearing pads in the radial...... elastothermohydrodynamic lubrication regime), as well as using a test rig designed and built to this effect. The comparison between experimental and theoretical results provides solid ground to determine the accuracy of the available model for the the prediction of the steady-state behavior of the tilting-pad bearing...

  1. Design Optimization of Tilting-Pad Journal Bearing Using a Genetic Algorithm

    Directory of Open Access Journals (Sweden)

    Hamit Saruhan

    2004-01-01

    Full Text Available This article focuses on the use of genetic algorithms in developing an efficient optimum design method for tilting pad bearings. The approach optimizes based on minimum film thickness, power loss, maximum film temperature, and a global objective. Results for a five tilting-pad preloaded bearing are presented to provide a comparison with more traditional optimum design methods such as the gradient-based global criterion method, and also to provide insight into the potential of genetic algorithms in the design of rotor bearings. Genetic algorithms are efficient search techniques based on the idea of natural selection and genetics. These robust methods have gained recognition as general problem solving techniques in many applications.

  2. Elastohydrodynamics Applied to Active Tilting-Pad Journal Bearings

    DEFF Research Database (Denmark)

    Haugaard, Martin Asger; Santos, Ilmar

    2010-01-01

    , but lateral movement is permitted. The servovalve flow is governed by a second order ordinary differential equation, where the right hand side is controlled by an electronic input signal. The constitutive flow-pressure relationship of the injection orifices is that of a fully developed laminar velocity....... The oil film pressure and flow are considered to follow the modified Reynolds equation, which includes the contribution from controllable radial oil injection. The Reynolds equation is solved using a two-dimensional finite element mesh. The rotor is considered to be rigid in terms of shape and size...... profile and the servovalve is introduced into the system of equations by a mass conservation consideration. The Reynolds equation is linearized with respect to displacements and velocities of the nodal degrees of freedom. When all nodal points satisfy static equilibrium, the system of equations...

  3. Performance of gas-lubricated cruciform-mounted tilting-pad journal bearings and a damped flexibly mounted spiral-groove thrust bearing

    Science.gov (United States)

    Ream, L. W.

    1974-01-01

    A test program was conducted to determine the performance characteristics of gas-lubricated cruciform-mounted tilting-pad journal bearings and a damped spiral-groove thrust bearing designed for the Brayton cycle rotating unit (BRU). Hydrostatic, hybrid (simultaneously hydrostatic and hydrodynamic), and hydrodynamic tests were conducted in argon gas at ambient pressure and temperature ranges representative of operation to the 10.5 kWe BRU power-generating level. Performance of the gas lubricated bearings is presented including hydrostatic gas flow rates, bearing clearances, bearing temperatures, and transient performance.

  4. Frequency Response Analysis of an Actively Lubricated Rotor/Tilting-Pad Bearing System

    DEFF Research Database (Denmark)

    Nicoletti, Rodrigo; Santos, Ilmar

    2004-01-01

    lubrication. The second approach based on the equivalent dynamic coefficients leads to more accurate results since it includes the frequency dependence of the active hydraulic forces. Theoretical and experimental results reveal the feasibility of reducing resonance peaks by using the active lubricated tilting...... into the model by using two different approaches: (a) linearized active oil film forces and the assumption that the hydrodynamic forces and the active hydraulic forces can be decoupled; (b) equivalent dynamic coefficients of the active oil film and the solution of the modified Reynolds' equation for the active...... their operational range by attenuating resonance peaks and reducing vibration problems....

  5. Frequency Response Analysis of an Actively Lubricated Rotor/Tilting-Pad Bearing System

    DEFF Research Database (Denmark)

    Nicoletti, Rodrigo; Santos, Ilmar

    2005-01-01

    for the active lubrication. The second approach, based on the equivalent dynamic coefficients, leads to more accurate results because it includes the frequency dependence of the active hydraulic forces. Theoretical and experimental results reveal the feasibility of reducing resonance peaks by using the active...... into the model by using two different approaches: (a) linearized active oil film forces and the assumption that the hydrodynamic forces and the active hydraulic forces can be decoupled, and (b) equivalent dynamic coefficients of the active oil film and the solution of the modified Reynolds equation...... of increasing their operational range by attenuating resonance peaks and reducing vibration problems....

  6. Identification Methods and Test Results for Tilting Pad and Fixed Geometry Journal Bearing Dynamic Coefficients – A Review

    Directory of Open Access Journals (Sweden)

    T.W. Dimond

    2009-01-01

    Full Text Available Fluid film journal bearings (FFBs are used to support high-speed rotors in turbomachinery which often operate above the rotor first bending critical speed. The FFBs provide both lateral support and dynamic coefficients: stiffness, damping, and mass terms, related to machine vibrations. Detailed numerical values of the bearing dynamic characteristics are necessary for proper design and operation of rotating machinery.

  7. Evaluation of the Thermal Effects in Tilting Pad Bearing

    Directory of Open Access Journals (Sweden)

    G. B. Daniel

    2013-01-01

    Full Text Available The analysis of thermal effects is of expressive importance in the context of rotordynamics to evaluate the behavior of hydrodynamic bearings because these effects can influence their dynamic characteristics under specific operational conditions. For this reason, a thermohydrodynamic model is developed in this work, in which the pressure distribution in the oil film and the temperature distribution are calculated together. From the pressure distribution, the velocity distribution field is determined, as well as the viscous dissipation, and consequently, the temperature distribution. The finite volume method is applied to solve the Reynolds equation and the energy equation in the thermohydrodynamic model (THD. The results show that the temperature is higher as the rotational speed increases due to the shear rate of the oil film. The maximum temperature in the bearing occurs in the overloaded pad, near the outlet boundary. The experimental tests were performed in a tilting pad journal bearing operating in a steam turbine to validate the model. The comparison between the experimental and numerical results provides a good correlation. The thermohydrodynamic lubrication developed in this assignment is promising to consistently evaluate the behavior of the tilting pad journal bearing operating in relatively high rotational speeds.

  8. Tilting-Pad Guide Bearing in Large Hydro-unit

    Directory of Open Access Journals (Sweden)

    Li-Feng Ma

    2000-01-01

    Full Text Available A new numerical method is proposed for predicting the nonlinearity of tilting-pad guide bearing oilfilm force in the rotor-bearing system in a large hydro-unit. Nonlinear displacement and velocity of the journal center, as well as nonlinear tilting angles and angular velocities of the pads in non-stationary Reynolds equation are taken into account. This method is also suited for other small rotor-bearing system. As an example, the response due to a momentarily created unbalance is Calculated. The nonlinear motion patterns of the pad and journal whirling orbit are obtained. Finally, the nonlinear orbit is compared to the linear one that could be calculated from linear stiffness and damping coefficients. It is shown that there are important differences between those two orbits and that the nonlinear simulation is more accurate.

  9. Modelling and simulation of a compliant tilting pad air bearing

    NARCIS (Netherlands)

    Duijnhouwer, F.; Nijmeijer, H.

    The compliant tilting pad air bearing concept, a tilting pad bearing with the pivot of the pads placed on radial springs, is a promising aerodynamic bearing solution. Nevertheless, its non-linear dynamics make a time domain dynamic simulation model an essential tool for the design of rotor systems

  10. Stability Analysis of an Industrial Gas Compressor Supported by Tilting-Pad Bearings Under Different Lubrication Regimes

    DEFF Research Database (Denmark)

    Cerda, Alejandro; Santos, Ilmar

    2012-01-01

    This work is aimed at a theoretical study of the dynamic behavior of a rotor-tilting pad journal bearing (TPJB) system under different lubrication regimes, namely, thermohydrodynamic (THD), elastohydrodynamic (EHD), and hybrid lubrication regime. The rotor modeled corresponds to an industrial com...

  11. Friction and Lubrication of Large Tilting-Pad Thrust Bearings

    Directory of Open Access Journals (Sweden)

    Michał Wasilczuk

    2015-04-01

    Full Text Available Fluid film bearings have been extensively used in the industry because of their unbeatable durability and extremely low friction coefficient, despite a very low coefficient of friction dissipation of energy being noticeable, especially in large bearings. Lubricating systems of large tilting pad thrust bearings utilized in large, vertical shaft hydrogenerators are presented in this paper. A large amount of heat is generated due to viscous shearing of the lubricant large tilting pad thrust bearings, and this requires systems for forced cooling of the lubricant. In the dominant bath lubrication systems, cooling is realized by internal coolers or external cooling systems, with the latter showing some important advantages at the cost of complexity and also, potentially, lower reliability. Substantial losses in the bearings, reaching 1 MW in extreme cases, are a good motivation for the research and development aimed at reducing them. Some possible methods and their potential efficiency, along with some effects already documented, are also described in the paper.

  12. On the Design of Tilting-Pad Thrust Bearings

    DEFF Research Database (Denmark)

    Heinrichson, Niels

    2007-01-01

    Pockets are often machined in the surfaces of tilting-pad thrust bearings to allow for hydrostatic jacking in the start-up phase. Pockets and other recesses in the surfaces of bearing pads influence the pressure distribution and thereby the position of the pivot resulting in the most advantageous...... based on the Reynolds equation are used. They include the effects of variations of viscosity with temperature and the deformation of the bearing pads due to pressure and thermal gradients. The models are validated using measurements. Tilting-pad bearings of standard design are studied and the influences...... of the friction loss. Both this bearing and the bearing design with enclosed recesses in the high-pressure regions of the pads suffer from a higher sensitivity to the position of the pivot. The design of such bearing is therefore no trivial task....

  13. On the Design of Tilting-Pad Thrust Bearings

    OpenAIRE

    Heinrichson, Niels; Santos, Ilmar

    2007-01-01

    Pockets are often machined in the surfaces of tilting-pad thrust bearings to allow for hydrostatic jacking in the start-up phase. Pockets and other recesses in the surfaces of bearing pads influence the pressure distribution and thereby the position of the pivot resulting in the most advantageous pad convergence ratio. In this thesis, a theoretical approach is applied in the attempt to quantify the influence of recesses in the pad surfaces. The recesses may be relatively deep and enclosed as ...

  14. Experimental and Numerical Simulation of Unbalance Response in Vertical Test Rig with Tilting-Pad Bearings

    Directory of Open Access Journals (Sweden)

    Mattias Nässelqvist

    2014-01-01

    Full Text Available In vertically oriented machines with journal bearing, there are no predefined static radial loads, such as dead weight for horizontal rotor. Most of the commercial software is designed to calculate rotordynamic and bearing properties based on machines with a horizontally oriented rotor; that is, the bearing properties are calculated at a static eccentricity. For tilting-pad bearings, there are no existing analytical expressions for bearing parameters and the bearing parameters are dependent on eccentricity and load angle. The objective of this paper is to present a simplified method to perform numerical simulations on vertical rotors including bearing parameters. Instead of recalculating the bearing parameters in each time step polynomials are used to represent the bearing parameters for present eccentricities and load angles. Numerical results are compared with results from tests performed in a test rig. The test rig consists of two guide bearings and a midspan rotor. The guide bearings are 4-pad tilting-pad bearings. Shaft displacement and strains in the bearing bracket are measured to determine the test rig’s properties. The comparison between measurements and simulated results shows small deviations in absolute displacement and load levels, which can be expected due to difficulties in calculating exact bearing parameters.

  15. Optimal design of Tilting-Pad Thrust Bearings with High Pressure Injection Pockets

    DEFF Research Database (Denmark)

    Heinrichson, Niels; Santos, Ilmar

    2006-01-01

    A thermo-elasto-hydrodynamic(TEHD) model based on the Reynolds equation has been used to study the effect of oil injection pockets on the performance of tilting pad thrust bearings. The optimal position of the pivot both with respect to load carrying capacity and minimal power consumption is seen...

  16. Reducing friction in tilting-pad bearings by the use of enclosed recesses

    DEFF Research Database (Denmark)

    Heinrichson, Niels; Santos, Ilmar

    2008-01-01

    A three-dimensional thermoelastohydrodynamic model is applied to the analysis of tilting-pad bearings with spherical pivots and equipped with deep recesses in the high-pressure regions. A potential for a 10-20% reduction in the friction loss compared to conventional plain bearing pads is documented....... Design suggestions minimizing the power loss are given for various length-to-width ratios. The tilting angle in the sliding direction is more sensitive to correct positioning of the pivot point than conventional bearing pads. Improving the performance by equipping a tilting-pad bearing with a deep recess...... therefore requires accurate analysis and design of the bearing. Similarly, a high sensitivity perpendicular to the sliding direction suggests that this method of reducing friction is more feasible when using line pivots or spring beds than when using spherical pivots for controlling the tilting angle....

  17. A numerical model for design and optimization of surface textures for tilting pad thrust bearings

    OpenAIRE

    Gropper, Daniel; Harvey, Terence; Wang, Ling

    2018-01-01

    A numerical model based on the Reynolds equation to study textured tilting pad thrust bearings considering mass-conserving cavitation and thermal effects is presented. A non-uniform and adaptive finite volume method is utilized and two methods are compared and selected regarding their efficiency in handling discontinuities; specifically placing additional nodes closely around discontinuities and directly incorporating discontinuities in the discrete system. Multithreading is applied to improv...

  18. Experimental test of static and dynamic characteristics of tilting-pad thrust bearings

    OpenAIRE

    Annan Guo; Xiaojing Wang; Jian Jin; Diann Y Hua; Zikai Hua

    2015-01-01

    The axial vibration in turbine machine has attracted more and more interest. Tilting-pad thrust bearings are widely used in turbine machines to support the axial load. The dynamic properties generated by oil film of the thrust pad have important effects on the axial vibration of the rotor-bearing system. It is necessary to develop the method to test the dynamic characteristics of thrust bearings. A new rig has been developed. The facility allows a complete set of bearing operating parameters ...

  19. On the Possibilities of Decreasing Power Loss in Large Tilting Pad Thrust Bearings

    OpenAIRE

    Wasilczuk, Michal; Rotta, Grzegorz

    2013-01-01

    Different systems of direct oil supply have been developed in order to facilitate efficient introduction of fresh lubricant to the oil gap and reduction of churning power loss in tilting pad thrust bearings. Up to now there is no documented application of the supply groove in large thrust bearings used in water power plants. The results of modeling lubricant flow in the lubricating groove of a thrust bearing pad will be presented in the paper. CFD software was used to carry out fluid film cal...

  20. Control system design for flexible rotors supported by actively lubricated bearings

    DEFF Research Database (Denmark)

    Nicoletti, Rodrigo; Santos, Ilmar

    2008-01-01

    and keeping the lengths of the two eigenvalues constant in the real-imaginary plane. The methodology is applied to an industrial gas compressor supported by active tilting-pad journal bearings. The unbalance response functions and mode shapes of the flexible rotor with and without active control are presented...

  1. Experimental test of static and dynamic characteristics of tilting-pad thrust bearings

    Directory of Open Access Journals (Sweden)

    Annan Guo

    2015-07-01

    Full Text Available The axial vibration in turbine machine has attracted more and more interest. Tilting-pad thrust bearings are widely used in turbine machines to support the axial load. The dynamic properties generated by oil film of the thrust pad have important effects on the axial vibration of the rotor-bearing system. It is necessary to develop the method to test the dynamic characteristics of thrust bearings. A new rig has been developed. The facility allows a complete set of bearing operating parameters to be measured. Parameters measured include oil temperatures, oil-film thickness, and pressure. The static load and dynamic load can be added on the thrust bearing in the vertical direction at the same time. The relative and absolute displacement vibrations of the test experimental bearing with the changes of dynamic force are measured, and the dynamic characteristics of the test bearing are obtained. The experimental results show clearly that the operating conditions influence largely on the pad static and dynamic characteristics.

  2. The Influence of Injection Pockets on the Performance of Tilting-Pad Thrust Bearings: Part I – Theory

    DEFF Research Database (Denmark)

    Heinrichson, Niels; Santos, Ilmar

    2006-01-01

    This is Part I of a two-part series of papers describing the effects of high pressure injection pockets on the operating conditions of tilting-pad thrust bearings. A numerical model based on the Reynolds equation is developed extending the three dimensional thermo-elasto-hydrodynamic (TEHD......) analysis of tilting-pad thrust bearings to include the effects of high pressure injection and recesses in the bearing pad. The model is applied to the analysis of an existing bearing of large dimensions and the influence of the pocket is analyzed. It is shown that a shallow pocket positively influences...... the performance of the bearing as it has characteristics similar to those of a parallel step bearing....

  3. The Influence of Injection Pockets on the Performance of Tilting-Pad Thrust Bearings - Part I: Theory

    DEFF Research Database (Denmark)

    Heinrichson, Niels; Santos, Ilmar; Fuerst, Axel

    2007-01-01

    This is Part I of a two-part series of papers describing the effects of high-pressure injection pockets on the operating conditions of tilting-pad thrust bearings. In Part I a numerical model based on the Reynolds equation is developed extending the threedimensional thermoelastohydrodynamic (TEHD......) analysis of tilting-pad thrust bearings to include the effects of high-pressure injection and recesses in the bearing pads. The model is applied to the analysis of an existing bearing of large dimensions and the influence of the pocket is analyzed. In the analysis, the high-pressure oil injection used...... for hydrostatic jacking is turned off (i.e., only the effect of the pocket is studied). It is shown that a shallow pocket positively influences the performance of the bearing because it has characteristics similar to those of a Rayleigh-step bearing. In Part II of the paper (Heinrichson, N., Fuerst, A...

  4. The Influence of Injection Pockets on the Performance of Tilting-Pad Thrust Bearings: Part II – Comparison Between Theory and Experiment

    DEFF Research Database (Denmark)

    Heinrichson, Niels; Santos, Ilmar

    2006-01-01

    This is Part II of a two-part series of papers describing the effects of high pressure injection pockets on the operating conditions of tilting-pad thrust bearings. Measurements of the distribution of pressure and oil film thickness are presented for tilting-pad thrust bearing pads of approximately...... 100 cm2 surface area. Two pads are measured in a laboratory test-rig at loads of approximately 0.5, 1.5 and 4.0 MPa and velocities of up to 33 m/s. One pad has a plain surface. The other pad has a conical injection pocket at the pivot point and a leading edge taper. The measurements are compared...... to theoretical values obtained using a three dimensional thermo-elasto-hydrodynamic (TEHD) numerical model. At low and intermediate loads the theoretical pressure distribution corresponds well to the measured values for both pads although the influence of the pocket is slightly underestimated. At high loads...

  5. Journal Bearings

    Directory of Open Access Journals (Sweden)

    Renato Brancati

    1999-01-01

    determined after acquiring and analysing the orbits described by the journal axis for assigned unbalance values in different operating conditions. Analysis of the results shows some particular operating features that were not entirely predicted by the theoretical model and which may give rise to malfunctions in the rotor-tilting pad bearings system. The tests were carried out in the rotor dynamics laboratory of the Dipartimento di Ingegneria Meccanica per l'Energetica at the University of Naples.

  6. The Influence of Injection Pockets on the Performance of Tilting-Pad Thrust Bearings - Part II: Comparison Between Theory and Experiment

    DEFF Research Database (Denmark)

    Heinrichson, Niels; Fuerst, Axel; Santos, Ilmar

    2007-01-01

    This is Part II of a two-part series of papers describing the effects of high-pressure injection pockets on the operating conditions of tilting-pad thrust bearings. The paper has two main objectives. One is an experimental investigation of the influence of an oil injection pocket on the pressure...... and without oil injection) on the pressure distribution and oil film thickness. Measurements of the distribution of pressure and oil film thickness are presented for tilting-pad thrust bearing pads of approx. 100 cm^2 surface area. Two pads are measured in a laboratory test rig at loads of approx. 1.5 MPa...... and approx. 4.0 MPa and velocities of up to 33 m/s. One pad has a plain surface. The other pad has a conical injection pocket at the pivot point and a leading-edge taper. The measurements are compared to theoretical values obtained using a three-dimensional thermoelastohydrodynamic (TEHD) numerical model...

  7. Control System Design for Active Lubrication with Theoretical and Experimental Examples

    DEFF Research Database (Denmark)

    Santos, Ilmar; Scalabrin, A.

    2003-01-01

    This work focuses on the theoretical and experimental behavior of rigid rotors controlled by tilting-pad journal bearings with active oil injection. Initially the mathematical model of the active bearing is presented: The equations that describe the dynamics of hydraulic actuators are introduced...... system of the active bearing based on root locus curves. The active system stability is analyzed by calculating its eigenvalues and frequency response curves. The theoretical and experimental results show that this kind of bearing can significantly reduce the vibration level of rotating machinery....

  8. Dynamic behavior of air lubricated pivoted-pad journal-bearing, rotor system. 2: Pivot consideration and pad mass

    Science.gov (United States)

    Nemeth, Z. N.

    1972-01-01

    Rotor bearing dynamic tests were conducted with tilting-pad journal bearings having three different pad masses and two different pivot geometries. The rotor was vertically mounted and supported by two three-pad tilting-pad gas journal bearings and a simple externally pressurized thrust bearing. The bearing pads were 5.1 cm (2.02 in.) in diameter and 2.8 cm (1.5 in.) long. The length to diameter ratio was 0.75. One pad was mounted on a flexible diaphragm. The bearing supply pressure ranged from 0 to 690 kilonewtons per square meter (0 to 100 psig), and speeds ranged to 38,500 rpm. Heavy mass pad tilting-pad assemblies produced three rotor-bearing resonances above the first two rotor critical speeds. Lower supply pressure eliminated the resonances. The resonances were oriented primarily in the direction normal to the diaphragm.

  9. Nonlinear Dynamic Response of Compliant Journal Bearings

    Directory of Open Access Journals (Sweden)

    Glavatskih S.

    2012-07-01

    Full Text Available This paper investigates the dynamic response of the compliant tilting pad journal bearings subjected to synchronous excitation. Bearing compliance is affected by the properties of pad liner and pad support geometry. Different unbalance eccentricities are considered. It is shown that bearing dynamic response is non-linear. Journal orbit complexity increases with pad compliance though the orbit amplitudes are marginally affected at low loads. At high loads, the journal is forced to operate outside the bearing clearance. The polymer liner reduces the maximum oil film pressure by a factor of 2 when compared to the white metal liner. The nonlinear dynamic response of compliant tilting pad journal bearings is thoroughly discussed.

  10. Journaling; an active learning technique.

    Science.gov (United States)

    Blake, Tim K

    2005-01-01

    Journaling is a method frequently discussed in nursing literature and educational literature as an active learning technique that is meant to enhance reflective practice. Reflective practice is a means of self-examination that involves looking back over what has happened in practice in an effort to improve, or encourage professional growth. Some of the benefits of reflective practice include discovering meaning, making connections between experiences and the classroom, instilling values of the profession, gaining the perspective of others, reflection on professional roles, and development of critical thinking. A review of theory and research is discussed, as well as suggestions for implementation of journaling into coursework.

  11. Visual Journaling: Engaging Adolescents in Sketchbook Activities

    Science.gov (United States)

    Cummings, Karen L.

    2011-01-01

    A wonderful way to engage high-school students in sketchbook activities is to have them create journals that combine images with words to convey emotions, ideas, and understandings. Visual journaling is a creative way for them to share their experiences and personal responses to life's events in visual and written form. Through selecting and…

  12. Parametric studies on floating pad journal bearing for high speed cryogenic turboexpanders

    Science.gov (United States)

    Jain, A.; Jadhav, M. M.; Karimulla, S.; Chakravarty, A.

    2017-12-01

    Most modern medium and large capacity helium liquefaction/refrigeration plants employ high speed cryogenic turboexpanders in their refrigeration/liquefaction cycles as active cooling devices. The operating speed of these turboexpanders is in the range of 3000-5000 Hz and hence specialized types of bearings are required. Floating pad journal bearing, which is a special type of tilting pad journal bearing, where mechanical pivots are absent and pads are fully suspended in gas, can be a good solution for stable operation of these high speed compact rotors. The pads are separated from shaft as well as from housing by fluid film between them, and both these sides of pad are interconnected by a network of feed holes. The work presented in this article aims to characterize floating pad journal bearings through parametric studies. The steady state performance characteristics of the bearing are represented by load capacity, stiffness coefficients and heat generation rate of the bearing. The geometrical parameters such as bearing clearances, preload of pads, etc. are varied and performance characteristics of the floating pad journal bearing are studied and presented. The dependence of stiffness coefficients on rotational speed of shaft is also analyzed.

  13. Active Vibration Control of Hydrodynamic Journal Bearings

    Science.gov (United States)

    Tůma, J.; Šimek, J.; Škuta, J.; Los, J.; Zavadil, J.

    Rotor instability is one of the most serious problems of high-speed rotors supported by sliding bearings. With constantly increasing parameters, new machines problems with rotor instability are encountered more and more often. Even though there are many solutions based on passive improvement of the bearing geometry to enlarge the operational speed range of the journal bearing, the paper deals with a working prototype of a system for the active vibration control of journal bearings with the use of piezoactuators. The actively controlled journal bearing consists of a movable bushing, which is actuated by two piezoactuators. It is assumed that the journal vibration is measured by a pair of proximity probes. Force produced by piezoactuators and acting at the bushing is controlled according to error signals derived from the proximity probe output signals. The active vibration control was tested with the use of a test rig, which consists of a rotor supported by two controllable journal bearings and driven by an inductive motor up to 23,000 rpm. As it was proved by experiments the active vibration control extends considerably the range of the rotor operational speed.

  14. Adjustable ETHD lubrication applied to the improvement of dynamic performance of flexible rotors supported by active TPJB

    DEFF Research Database (Denmark)

    Salazar, Jorge Andrés González; Cerda Varela, Alejandro Javier; Santos, Ilmar

    2013-01-01

    This paper reports the dynamic study of a flexible rotor-bearing test rig which resembles a large overhung centrifugal compressor. The rotor is supported by an active tilting pad journal bearing (TPJB) able to perform the adjustable lubrication regime. Such a regime is obtained by injecting...... pressurized oil directly into the bearing clearance through a nozzle placed in a radial bore at the middle of the pad and connected to a high pressure supply unit by servovalves. The theoretical model is based on a finite element model, where the active TPJB with adjustable lubrication is included using...... and the experimental results are obtained. The improvements are obtained when the system response amplitudes in a bounded speed range is reduced by applying the adjustable lubrication. Results are in agreement with the established fact that a significant improvement of the rotor-bearing system dynamic performance can...

  15. Feasibility of Applying Active Lubrication to Reduce Vibration in Industrial Compressors

    DEFF Research Database (Denmark)

    Santos, Ilmar; Nicoletti, Rodrigo; Scalabrin, A.

    2004-01-01

    of the orifices distributed over the sliding surface. The dynamic coefficients of tilting-pad bearings with and without active lubrication and their influence on an industrial compressor of 391 Kg, which operates with a maximum speed of 10,200 rpm, are analyzed. In the original compressor design, the bearing...... housings are mounted on squeeze-film dampers in order to ensure reasonable stability margins during full load condition (high maximum continuous speed). Instead of having a combination of tilting-pad bearings and squeeze-film dampers, another design solution is proposed and theoretically investigated...

  16. African Journal for Physical Activity and Health Sciences - Vol 18 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... Association between physical activity level and demographic variables in patients with ... activity participation among university students and variation in terms of gender ...

  17. African Journal for Physical Activity and Health Sciences - Vol 20 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... Exercise Improves Blood Glucose Level in Pregnant Women with Gestational Diabetes Mellitus ... Physical activity and health in children: How much do we know?

  18. African Journal for Physical Activity and Health Sciences - Vol 21 ...

    African Journals Online (AJOL)

    African Journal for Physical Activity and Health Sciences - Vol 21, No 3 (2015) ... Factors Influencing the Health of Men in Polygynous Relationship · EMAIL FULL ... Views of HIV Positive Pregnant Women on Accessibility of the Prevention of ...

  19. African Journal for Physical Activity and Health Sciences - Vol 13 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... From pioneer pastime to international status: Jukskei as South Africa's only white ... Comparison of physical activities among Beninese adolescents attending schools in ...

  20. African Journal for Physical Activity and Health Sciences - Vol 19 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... Adiposity and physical activity among children in countries at different stages of the physical ... The world in turmoil: Promotion of peace and international understanding ...

  1. Development in the Active Packaging of Foods | Vermeiren | Journal ...

    African Journals Online (AJOL)

    ... of the art about the experimental development and commercialisation of active packaging concepts, (3) provide a scope of applications and (4) discuss the obstacles to be overcome in order to make extensive commercial application of active packaging in Europe feasible. The Journal of Food Technology in Africa Volume ...

  2. Active audiences and journalism: Involved citizens or motivated consumers?

    Directory of Open Access Journals (Sweden)

    Pere Masip

    2015-09-01

    Full Text Available Audience participation, in any of its forms and names (public journalism, citizen journalism, participatory journalism, UGC, appears to revitalise democracy, thanks to the opportunities for public debate opened up by information and communications technology. On the other hand, however, there are many authors who question whether interactive technologies really encourage democracy or the market, empower the citizen or strengthen the consumer. In this context, we still have little information on the motivations that drive citizens to actively participate through the mechanisms that the media make available to them on their own websites or through social networks. There is a similar lack of information on the role that users attribute to their involvement in the functioning of the media and whether it contributes to improving their democratic function. This article aims to shed some light on this subject.

  3. Antibacterial activity of Ficus capensis | Oyeleke | African Journal of ...

    African Journals Online (AJOL)

    African Journal of Biotechnology. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 7, No 10 (2008) >. Log in or Register to get access to full text downloads.

  4. From passive to active: The spectrum of peace journalism

    Directory of Open Access Journals (Sweden)

    Jesse Benn

    2015-10-01

    Full Text Available One of the biggest hurdles facing the field of peace journalism (PJ is its vague definition. This paper proposes defining PJ as it operates on a spectrum, from passive to active. Through a review of extant PJ literature, this paper synthesizes current theory into an overarching, explicit concept, and calls for it to be further adopted and expanded. To conclude it considers potential advantages, drawbacks, and critiques of its proposal.

  5. Engaged Journalism: Using Experiential Learning Theory (ELT) for In-Class Journaling Activities

    Science.gov (United States)

    Jenkins, J. Jacob; Clarke, Tracylee

    2017-01-01

    Educators have long recognized the value and import of class journaling. Traditional approaches to journaling, however, only engage students in one mode of communicative expression while allowing them to procrastinate in writing their entries. Typical journals are also read exclusively by the instructor, which overlooks the opportunity for…

  6. Development in the Active Packaging of Foods | Vermeiren | Journal ...

    African Journals Online (AJOL)

    Journal of Food Technology in Africa. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 5, No 1 (2000) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Download this PDF file. The PDF file you selected ...

  7. Analysis of graphic representations of activity theory in international journals

    Directory of Open Access Journals (Sweden)

    Marco André Mazzarotto

    2016-05-01

    Full Text Available Activity theory is a relevant framework for the Design field, and their graphic representations are cognitive artifacts that aid the understanding, use and communication of this theory. However, there is a lack of consistency around the graphics and labels used in these representations. Based on this, the aim of this study was to identify, analyze and evaluate these differences and propose a representation that aims to be more suitable for the theory. For this, uses as method a literature review based on Engeström (2001 and its three generations of visual models, combined with graphical analysis of representations collected in a hundred papers from international journals.

  8. Active control of multi-input hydraulic journal bearing system

    Science.gov (United States)

    Chuang, Jen-Chen; Chen, Chi-Yin; Tu, Jia-Ying

    2016-09-01

    Because of the advantages of high accuracy, high capacity, and low friction, the development of hydrostatic bearing for machine tool receives significant attention in the last decades. The mechanics and mechanical design of hydrostatic journal bearing with capillary restrictors has been discussed in literature. However, pragmatically, the undesired loading effects of cutting force tend to result in resonance and instability of the rotor and damage the shaft during operation. Therefore, multi-input, active flow control using state feedback design is proposed in this paper. To this purpose, the proportional pressure valves are added to the hydraulic system as active control devices, and the linearised models of the bearing and valve are discussed and identified. Simulation and experimental work is conducted to verify the proposed active control and parameter identification techniques. The results show that the unbalance responses of the rotor are reduced by the proposed state feedback controller, which is able to regulate the flow pressure effectively, thus enhancing the stability and accuracy of the hydraulic journal bearing.

  9. Journal and Wave Bearing Impedance Calculation Software

    Science.gov (United States)

    Hanford, Amanda; Campbell, Robert

    2012-01-01

    The wave bearing software suite is a MALTA application that computes bearing properties for user-specified wave bearing conditions, as well as plain journal bearings. Wave bearings are fluid film journal bearings with multi-lobed wave patterns around the circumference of the bearing surface. In this software suite, the dynamic coefficients are outputted in a way for easy implementation in a finite element model used in rotor dynamics analysis. The software has a graphical user interface (GUI) for inputting bearing geometry parameters, and uses MATLAB s structure interface for ease of interpreting data. This innovation was developed to provide the stiffness and damping components of wave bearing impedances. The computational method for computing bearing coefficients was originally designed for plain journal bearings and tilting pad bearings. Modifications to include a wave bearing profile consisted of changing the film thickness profile given by an equation, and writing an algorithm to locate the integration limits for each fluid region. Careful consideration was needed to implement the correct integration limits while computing the dynamic coefficients, depending on the form of the input/output variables specified in the algorithm.

  10. Active audiencies and journalism: Involved citizens or motivated consumers?

    OpenAIRE

    Masip, Pere; Guallar, Javier; Peralta, Miquel; Ruiz-Caballero, Carlos; Suau, Jaume

    2015-01-01

    Audience participation, in any of its forms and names (public journalism, citizen journalism, participatory journalism, UGC), appears to revitalise democracy, thanks to the opportunities for public debate opened up by information and communications technology. On the other hand, however, there are many authors who question whether interactive technologies really encourage democracy or the market, empower the citizen or strengthen the consumer. In this context, we still have little information...

  11. Active audiences and journalism: Involved citizens or motivated consumers?

    OpenAIRE

    Masip, Pere; Guallar, Javier; Peralta, Miquel; Ruiz, Carles; Suau, Jaume

    2015-01-01

    Audience participation, in any of its forms and names (public journalism, citizen journalism, participatory journalism, UGC), appears to revitalise democracy, thanks to the opportunities for public debate opened up by information and communications technology. On the other hand, however, there are many authors who question whether interactive technologies really encourage democracy or the market, empower the citizen or strengthen the consumer. In this context, we still have little information...

  12. African Journal for Physical Activity and Health Sciences: Editorial ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... in conjunction with appointed reviewers throughout Africa and overseas for special topics. ... Professor A.L. Toriola (Exercise and Sports Science) Tshwane University of ...

  13. African Journal for Physical Activity and Health Sciences - Vol 23 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... Employee interactive quality and perceived value effects on satisfaction and patronage ... Transforming tourism in South Africa: Towards a youth empowerment model ...

  14. African Journal for Physical Activity and Health Sciences - Vol 23 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... Graduate attributes for contemporary business event tourism management qualifications: ... Utilising sustainable tourism indicators to determine the environmental performance ... The mediating role of tourist attractions in the relationship between hotel ...

  15. African Journal for Physical Activity and Health Sciences - Vol 22 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... Physiological demands of simulated elite Karate kumite matches · EMAIL FULL ... Parental involvement in school sport: Perceptions of competitive rugby union players ...

  16. African Journal for Physical Activity and Health Sciences - Vol 21 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... The relationship between Parenting styles and childhood trauma: A study of street children in ... Bull's Mental Skills Questionnaire validation in an Afrikaans speaking ...

  17. African Journal for Physical Activity and Health Sciences - Vol 19 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... The socio-economic impact of HIV/AIDS on infected individuals in the ... influence the travel behaviour of visitors to nature-based tourism products in South Africa?

  18. African Journal for Physical Activity and Health Sciences - Vol 18 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... severity and mechanism of acute injuries in elite male African youth soccer players ... on golfers' physical and functional fitness as well as golf performance: A pilot study ...

  19. African Journal for Physical Activity and Health Sciences - Vol 15 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... Anthropometry, physical and motor performance determinants of sprinting and long ... Anatomical fat patterning in male Nigerian soccer players · EMAIL FULL TEXT ...

  20. African Journal for Physical Activity and Health Sciences - Vol 15 ...

    African Journals Online (AJOL)

    African Journal for Physical, Health Education, Recreation and Dance. ... of adolescent taekwondo participants in comparison with hockey participants and a non ... of physical education curriculumin six Arab countries: International perspective ...

  1. Beyond usage: understanding the use of electronic journals on the basis of information activity analysis. Electronic journals, Use studies, Information activity, Scientific communication

    Directory of Open Access Journals (Sweden)

    Annaïg Mahé

    2004-01-01

    Full Text Available In this article, which reports the second part of a two-part study of the use of electronic journals by researchers in two French research institutions, we attempt to explain the integration of the use of electronic journals in the scientists' information habits, going beyond usage analysis. First, we describe how the development of electronic journals use follows a three-phase innovation process - research-development, first uses, and technical acculturation. Then, we attempt to find more significant explanatory factors, and emphasis is placed on the wider context of information activity. Three main information activity types are outlined - marginal, parallel, and integrated. Each of these types corresponds to a particular attitude towards scientific information and to different levels of electronic journal use.

  2. Using Guided Reflective Journaling Activities to Capture Students' Changing Perceptions

    Science.gov (United States)

    Dunlap, Joanna C.

    2006-01-01

    Many professions are increasingly emphasizing the role of reflection, encouraging educators to look for appropriate ways to help students engage in reflective practice during their professional preparation. Journal writing is an insightful and powerful instructional technology utilizing strategies that foster understanding and the application of…

  3. Piezoelectric actuators in the active vibration control system of journal bearings

    Science.gov (United States)

    Tůma, J.; Šimek, J.; Mahdal, M.; Pawlenka, M.; Wagnerova, R.

    2017-07-01

    The advantage of journal hydrodynamic bearings is high radial load capacity and operation at high speeds. The disadvantage is the excitation of vibrations, called an oil whirl, after crossing a certain threshold of the rotational speed. The mentioned vibrations can be suppressed using the system of the active vibration control with piezoactuators which move the bearing bushing. The motion of the bearing bushing is controlled by a feedback controller, which responds to the change in position of the bearing journal which is sensed by a pair of capacitive sensors. Two stacked linear piezoactuators are used to actuate the position of the bearing journal. This new bearing enables not only to damp vibrations but also serves to maintain the desired bearing journal position with an accuracy of micrometers. The paper will focus on the effect of active vibration control on the performance characteristics of the journal bearing.

  4. Conception and activity directions of journal ''Nuclear and radiation safety''

    International Nuclear Information System (INIS)

    Olena, M.; Volodymyr, S.

    2000-01-01

    In connection with the State Scientific and Technical Centre onr Nuclear and Radiation Safety (SSTC NRA) and Odessa State Polytechnic University the journal 'Nuclear and Radiation Safety' was established in 1998. In Ukraine many people are interested in nuclear energy problems. The accident in Chernobyl NPP unit 4 touches all Ukrainians and brings about strong and regular attention to nuclear and radiation safety of nuclear installations and nuclear technology, on the other side more than 50 per cent of electric power is produced in 5 NPPs and as following national power supply depends on stability of NPPs work. Main goals of the journal are: Support to Nuclear Regulatory Administration (NRA) of MEPNS of Ukraine, creation of information space for effective exchange of results of scientific, scientific and technical, scientific and analytical work in the field of Nuclear and Radiation Safety, assistance in integrated development of research for Nuclear and Radiation Safety by publication in a single issue of scientific articles, involvement of state scientific potential in resolving actual problems, participation in international collaboration in the framework of agreements, programs and plans. (orig.)

  5. Model of strategic planning in active systems | Nasim | Journal of ...

    African Journals Online (AJOL)

    Annotation The work is dedicated to the mathematical formulation of the needing for strategic planning in active systems. At the same time, the possibility of the TAC (theory of active systems) for an assessment of conditions of effective strategic planning and development of an active system are shown. Keywords Active ...

  6. Active lubrication applied to radial gas journal bearings. Part 1: Modeling

    DEFF Research Database (Denmark)

    Morosi, Stefano; Santos, Ilmar

    2011-01-01

    Active bearings represent a mechatronic answer to the growing industrial need to high performance turbomachinery. The present contribution aims at demonstrate the feasibility of applying active lubrication to gas journal bearings. The principle of operation is to generate active forces by regulat...

  7. Study of active crossover network | Tyona | Nigerian Journal of Physics

    African Journals Online (AJOL)

    An active crossover network system has been realized using an active component LF356 with a JFET input. The net work has two drives, the low frequency drive (Bass) and the high frequency drive (Treble). It employs high level crossover technique. The circuit performance was adequately verified and the frequency ...

  8. Introduction of a Journal Excerpt Activity Improves Undergraduate Students' Performance in Statistics

    Science.gov (United States)

    Rabin, Laura A.; Nutter-Upham, Katherine E.

    2010-01-01

    We describe an active learning exercise intended to improve undergraduate students' understanding of statistics by grounding complex concepts within a meaningful, applied context. Students in a journal excerpt activity class read brief excerpts of statistical reporting from published research articles, answered factual and interpretive questions,…

  9. African Journal for Physical Activity and Health Sciences - 2009

    African Journals Online (AJOL)

    Learners, parents and educators' perceptions of the benefits and barriers to participation ... fan decisions to attend Premier Soccer League (PSL) games in South Africa ... Metabolic changes associated with playing active video game against a ...

  10. Haematinic activity of Hibiscus Cannabinus | Agbor | African Journal ...

    African Journals Online (AJOL)

    The haematinic activity of an orally administered aqueous extract of Hibiscus cannabinus leaves was studied on haemolytic anaemic rats. Anaemia was induced by an oral administration of phenylhydrazine for a period of 8 days. Red blood cell count, haemoglobin concentration, and pack cell volume were analysed as ...

  11. African Journal for Physical Activity and Health Sciences - Vol 19 ...

    African Journals Online (AJOL)

    Activity-based market segmentation of visitors to thermal spring resorts in the Western Cape Province, South Africa: Assessing the potential for health tourism development · EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. MS Boekstein, JP Spencer, 1100-1109 ...

  12. Antimicrobial activity of Monodora myristica seed oil | Odoh | Journal ...

    African Journals Online (AJOL)

    The essential oil is colourless, bitter with nice smell and the density is 0.789 g/ml. The oil had antimicrobial activity of the oil against Bacillus subtilis, Candida albicans and Staphylococcus aureus among the tested organism and can be incorporated into cream as antimicrobial agent and as a perfume. Key words: Monodora ...

  13. Anthelminthic activity of Asta Churna | Devi | International Journal of ...

    African Journals Online (AJOL)

    Purpose: To determine the effect of Asta churna (an ayurvedic preparation of Impcops) on Indian earthworms. Methods: Asta churna (2.5 mg/mL and 5 mg/mL) were investigated for activity in Indian earthworms (Pheretima postuma) against piperazine citrate (15 mg/mL) and albendazole (20 mg/mL) as standard references ...

  14. An Improvised Active Drain | Ogirima | Nigerian Journal of Surgical ...

    African Journals Online (AJOL)

    An improvised active drain is designed from intravenous infusion set and recycled RedivacR or Haemovac® bottle. Outcome of the use of this system on 100 patients is presented. This suction drainage system had been used in major orthopaedic and common minor surgical procedures and no significant complication was ...

  15. Active vibrations control of journal bearings with the use of piezoactuators

    Science.gov (United States)

    Tůma, Jiří; Šimek, Jiří; Škuta, Jaromír; Los, Jaroslav

    2013-04-01

    Rotor instability is one of the most serious problems of high-speed rotors supported by sliding bearings. With constantly increasing parameters, new machines problems with rotor instability are encountered more and more often. Even though there are many solutions based on passive improvement of the bearing geometry to enlarge the operational speed range of the journal bearing, the paper deals with a working prototype of a system for the active vibration control of journal bearings with the use of piezoactuators. The controllable journal bearing is a part of a test rig, which consists of a rotor driven by an inductive motor up to 23,000 rpm. The actively controlled journal bearing consists of a movable bushing, which is actuated by two piezoactuators. The journal vibration is measured by a pair of proximity probes. The control system enables run-up, coast-down and steady-state rotation. A real-time simulator dSpace encloses the control loop. Force produced by piezoactuators and acting at the bushing is controlled according to error signals derived from the proximity probe output signals. As it was proved by experiments the active vibration control extends considerably the range of the operational speed.

  16. Numerical Investigation of Turbulence Models for a Superlaminar Journal Bearing

    Directory of Open Access Journals (Sweden)

    Aoshuang Ding

    2018-01-01

    Full Text Available With rotating machineries working at high speeds, oil flow in bearings becomes superlaminar. Under superlaminar conditions, flow exhibits between laminar and fully developed turbulence. In this study, superlaminar oil flow in an oil-lubricated tilting-pad journal bearing is analyzed through computational fluid dynamics (CFD. A three-dimensional bearing model is established. CFD results from the laminar model and 14 turbulence models are compared with experimental findings. The laminar simulation results of pad-side pressure are inconsistent with the experimental data. Thus, the turbulence effects on superlaminar flow should be considered. The simulated temperature and pressure distributions from the classical fully developed turbulence models cannot correctly fit the experimental data. As such, turbulence models should be corrected for superlaminar flow. However, several corrections, such as transition correction, are unsuitable. Among all the flow models, the SST model with low-Re correction exhibits the best pressure distribution and turbulence viscosity ratio. Velocity profile analysis confirms that a buffer layer plays an important role in the superlaminar boundary layer. Classical fully developed turbulence models cannot accurately predict the buffer layer, but this problem can be resolved by initiating an appropriate low-Re correction. Therefore, the SST model with low-Re correction yields suitable results for superlaminar flows in bearings.

  17. The Use of Twitter by Radiology Journals: An Analysis of Twitter Activity and Impact Factor.

    Science.gov (United States)

    Kelly, Brendan S; Redmond, Ciaran E; Nason, Gregory J; Healy, Gerard M; Horgan, Niall A; Heffernan, Eric J

    2016-11-01

    Medical journals use social media as a means to disseminate new research and interact with readers. The microblogging site Twitter is one such platform. The aim of this study was to analyze the recent use of Twitter by the leading radiology journals. The top 50 journals by Impact Factor were included. Twitter profiles associated with these journals, or their corresponding societies, were identified. Whether each journal used other social media platforms was also recorded. Each Twitter profile was analyzed over a one-year period, with data collected via Twitonomy software. Klout scores of social media influence were calculated. Results were analyzed in SPSS using Student's t test, Fisher contingency tables, and Pearson correlations to identify any association between social media interaction and Impact Factors of journals. Fourteen journals (28%) had dedicated Twitter profiles. Of the 36 journals without dedicated Twitter profiles, 25 (50%) were associated with societies that had profiles, leaving 11 (22%) journals without a presence on Twitter. The mean Impact Factor of all journals was 3.1 ± 1.41 (range, 1.7-6.9). Journals with Twitter profiles had higher Impact Factors than those without (mean, 3.37 vs 2.14; P Twitter profiles and those associated with affiliated societies (P = .47). Since joining Twitter, 7 of the 11 journals (64%) experienced increases in Impact Factor. A greater number of Twitter followers was correlated with higher journal Impact Factor (R 2  = 0.581, P = .029). The investigators assessed the prevalence and activity of the leading radiology journals on Twitter. Radiology journals with Twitter profiles have higher Impact Factors than those without profiles, and the number of followers of a journal's Twitter profile is positively associated with Impact Factor. Copyright © 2016 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  18. Experimental Estimation of Journal Bearing Stiffness for Damage Detection in Large Hydrogenerators

    Directory of Open Access Journals (Sweden)

    Geraldo Carvalho Brito

    2017-01-01

    Full Text Available Based on experimental pieces of evidence collected in a set of twenty healthy large hydrogenerators, this article shows that the operating conditions of the tilting pad journal bearings of these machines may have unpredictable and significant changes. This behavior prevents the theoretical determination of bearing stiffness and damping coefficients with an adequate accuracy and makes damage detection difficult. Considering that dynamic coefficients have similar sensitivity to damage and considering that it is easier to monitor bearing stiffness than bearing damping, this article discusses a method to estimate experimentally the effective stiffness coefficients of hydrogenerators journal bearings, using only the usually monitored vibrations, with damage detection purposes. Validated using vibration signals synthesized by a simplified mathematical model that simulates the dynamic behavior of large hydrogenerators, the method was applied to a journal bearing of a 700 MW hydrogenerator, using two different excitations, the generator rotor unbalance and the vortices formed in the turbine rotor when this machine operates at partial loads. The experimental bearing stiffnesses obtained using both excitations were similar, but they were also much lower than the theoretical predictions. The article briefly discusses the causes of these discrepancies, the method’s uncertainties, and the possible improvements in its application.

  19. Active vibration reduction of rigid rotor by kinematic excitation of bushes of journal bearings

    Directory of Open Access Journals (Sweden)

    J. Ondrouch

    2010-04-01

    Full Text Available Possibilities of active lateral vibration reduction of a symmetric, rigid rotor supported by journal bearings are given. They were obtained by computational modelling. Efficiency of the feedback P and PD controllers in the stable revolution interval was examined. The linearized rotor system model was used. The results of the theoretical analysis are assigned for a testing stand where the bearing bush motions are deactivated by piezoelectric actuators connected to the controllers.

  20. EXPERIENCE OF USING «OPEN JOURNAL SYSTEMS» SOFTWARE PLATFORM FOR INFORMATION SUPPORT OF SCIENTIFIC AND EDUCATIONAL ACTIVITY

    Directory of Open Access Journals (Sweden)

    Oleg M. Spirin

    2017-10-01

    Full Text Available The article deals with the foreign and domestic experience of using the Open Journal Systems (OJS software platform for informational support of scientific and educational activities, in particular: a as a means of publicizing and disseminating the results of scientific research; b for creating and maintaining repositories of libraries of higher educational establishments; c for developing the scientific and educational space of an educational establishments; d as a cloud-based service for the preservation and access to scientific resources; e for information support in organization of student training; and f for deployment of student journals. As a result of the analysis of scientific periodicals of Ukraine in the field of psychological and pedagogical sciences, the scientific journals on the basis of Open Journal Systems are identified. The experience of support the electronic scientific journal «Information Technologies and Learning Tools» (http://journal.iitta.gov.ua is presented separately.

  1. Influence of surface texturing on the performance of tilting pad thrust bearings

    OpenAIRE

    Gropper, Daniel; Wang, Ling; Harvey, Terry J.; Meck, Klaus-Dieter; Gviniashvili, Vladimir

    2016-01-01

    Surface textures have been shown to have the potential of enhancing the performance of hydrodynamic bearings and many other applications. However, a comprehensive literature review by the authors has revealed that the application of surface texturing is still limited due to major challenges, such as the complexity of computational models and the large variety of operating conditions encountered in conventional industrial applications. In the present work, the potential of surface texturing fo...

  2. Comparison of Models for the Steady-State Analysis of Tilting-Pad Thrust Bearings

    DEFF Research Database (Denmark)

    Heinrichson, Niels; Santos, Ilmar

    2005-01-01

    Prediction of the minimum oil film thickness and the maximum temperature on the surface of the bearing pad is crucial in the design and dimensioning of bearings. Friction loss, oil bath temperature and pad deflection are other parameters of interest. Depending on the desired information a numerical...... for the groove between pads and the oil bath temperature from energy equilibrium for the entire bearing. The main theoretical contribution of this paper is the elaboration and comparison of 7 different mathematical models of increasing complexity. The results are compared to experimental data for steady......-state operation of a 228 mm outer diameter bearing. It is found that for the given bearing a two dimensional model is sufficient to estimate the minimum oil film thickness and the maximum temperature on the pad surface. Three dimensional modelling does not improve the quality of the results....

  3. Numerical and Experimental Stability Investigation of a Flexible Rotor on Two Different Tilting Pad Bearing Configurations

    Directory of Open Access Journals (Sweden)

    Weimin Wang

    2014-01-01

    Full Text Available Rotordynamic stability is crucial for high performance centrifugal compressors. In this paper, the weighted instrumental variable (WIV based system identification method for rotating machinery stability is investigated based on a sine sweep forward excitation with an electromagnetic actuator. The traditional multiple input multiple output (MIMO frequency response function (FRF is transformed into a directional frequency response function (dFRF. The rational polynomial method (RPM combined with WIV is developed to identify the rotor’s first forward mode parameters. This new approach is called the COMDYN method. Experimental work using the COMDYN method is carried out under different rotating speeds, oil inlet temperatures, and pressure conditions. Two sets of bearings with preloads 0.1 and 0.3 are investigated. A numerical rotor-bearing model is also built. The numerical results correlate reasonably well with the experimental results. The investigation results indicate that the new method satisfies the desired features of rotating machine stability identification. Furthermore, the system log decrement was improved somewhat with the increase of oil inlet temperature. The increase of oil supply pressure affects the rotor-bearing system stability very slightly. The results of this paper provide new and useful insights for potentially avoiding instability faults in centrifugal compressors.

  4. Assessing the impact participation in science journalism activities has on scientific literacy among high school students

    Science.gov (United States)

    Farrar, Cathy

    As part of the National Science Foundation Science Literacy through Science Journalism (SciJourn) research and development initiative (http://www.scijourn.org ; Polman, Saul, Newman, and Farrar, 2008) a quasi-experimental design was used to investigate what impact incorporating science journalism activities had on students' scientific literacy. Over the course of a school year students participated in a variety of activities culminating in the production of science news articles for Scijourner, a regional print and online high school science news magazine. Participating teachers and SciJourn team members collaboratively developed activities focused on five aspects of scientific literacy: placing information into context, recognizing relevance, evaluating factual accuracy, use of multiple credible sources and information seeking processes. This study details the development process for the Scientific Literacy Assessment (SLA) including validity and reliability studies, evaluates student scientific literacy using the SLA, examines student SLA responses to provide a description of high school students' scientific literacy, and outlines implications of the findings in relation to the National Research Council's A Framework for K-12 Science Education: Practices, Crosscutting Concepts, and Core Ideas (2012) and classroom science teaching practices. Scientifically literate adults acting as experts in the assessment development phase informed the creation of a scoring guide that was used to analyze student responses. Experts tended to draw on both their understanding of science concepts and life experiences to formulate answers; paying close attention to scientific factual inaccuracies, sources of information, how new information fit into their view of science and society as well as targeted strategies for information seeking. Novices (i.e., students), in contrast, tended to ignore factual inaccuracies, showed little understanding about source credibility and suggested

  5. The Use of Twitter by the Trauma and Orthopaedic Surgery Journals: Twitter Activity, Impact Factor, and Alternative Metrics.

    Science.gov (United States)

    Hughes, Hannah; Hughes, Andrew; Murphy, Colin

    2017-12-10

    Aim Social media (SoMe) platforms have become leading methods of communication and dissemination of scientific information in the medical community. They allow for immediate discussion and widespread engagement around important topics. It has been hypothesized that the activity on Twitter positively correlates with highly cited articles. The purpose of this study was to analyze the prevalence and activity of Trauma and Orthopaedic Surgery journals on Twitter, with the hypothesis that the impact factor is positively associated with the Twitter usage. Methods The top 50 Trauma and Orthopaedic Surgery journals, ranked by 2016 Impact Factor were analyzed. The Twitter profiles of each journal or affiliated society were identified. Other SoMe platforms used were also recorded. The Twitonomy software (Digonomy Pty Ltd, New South Wales, Australia) was used to analyze the Twitter profiles over a one-year period. The Twitter Klout scores were recorded for each journal to approximate the SoMe influence. The Altmetric scores (the total number of mentions via alternative metrics) were also recorded. The statistical analysis was carried out to identify correlations between journal Impact Factors, SoMe activity, Twitter Klout scores and Altmetric scores.  Results Twenty-two journals (44%) were dedicated to the Twitter profiles. Fourteen journals (28%) were associated with societies that had profiles and 14 journals (28%) had no Twitter presence. The mean Impact Factor overall was 2.16 +/- 0.14 (range, 1.07-5.16). The journals with dedicated Twitter profiles had higher Impact Factors than those without (mean 2.41 vs. 1.61; P=0.005). A greater number of Twitter followers were associated with higher Impact Factors (R2 0.317, P=0.03). The journals with higher Twitter Klout scores had higher Impact Factors (R2 0.357, P=0.016). The Altmetric score was positively associated with an Impact Factor (R2 0.310, P=0.015). The journals with higher numbers of retweets (virtual citations in

  6. Trends and changes in research on the psychology of physical activity across 20 years: a quantitative analysis of 10 journals.

    Science.gov (United States)

    Rhodes, Ryan E; Nasuti, Gabriella

    2011-01-01

    To investigate content of the psychology of physical activity research over the past 20 years. Volumes of 10 journals, identified by impact factor and relevance to physical activity were audited every other year, during the period of 1990-2008. Inclusion criteria were studies that measured a physical activity outcome, and/or a psychological outcome as a result of physical activity. Data were extracted and coded based on 15 factors. The review yielded 889 studies for analysis. Total volume of studies (from 127 in the 1990s to 762 in the 2000s), and the proportionate content space allotted to journals has increased significantly across 20 years (effect size w=0.24) (Cohen, 1992). Many study characteristics (assessment of minority/high-risk groups, self-report measurement, cross-sectional designs) have not changed. There was evidence, however, of less growth in research among older adults and young children (effect size w=0.15) compared to other age groups (effect size w=0.24), a move from pure measurement studies (effect size w=0.21) to descriptive research (effect size w=0.27), and considerable growth in environmental correlates research across time (effect size w=0.41) in the 10 journals sampled. The behavioral science of physical activity has clearly increased in prominence and volume among the 10 journals sampled, but methodological characteristics of research could be improved in the future. Copyright © 2011 Elsevier Inc. All rights reserved.

  7. Compensation of Cross-Coupling Stiffness and Increase of Direct Damping in Multirecess Journal Bearings using Active Hybrid Lubrication

    DEFF Research Database (Denmark)

    Santos, Ilmar; Watanabe, F.Y.

    2004-01-01

    journal bearings (HJB). When part of hydrostatic pressure is also dynamically modified by means of hydraulic control systems, one refers to the active lubrication. The main contribution of the present theoretical work is to show that it is possible to reduce cross-coupling stiffness and increase...

  8. Active implementation strategy of CONSORT adherence by a dental specialty journal improved randomized clinical trial reporting.

    Science.gov (United States)

    Pandis, Nikolaos; Shamseer, Larissa; Kokich, Vincent G; Fleming, Padhraig S; Moher, David

    2014-09-01

    To describe a novel CONsolidated Standards of Reporting Trials (CONSORT) adherence strategy implemented by the American Journal of Orthodontics and Dentofacial Orthopedics (AJO-DO) and to report its impact on the completeness of reporting of published trials. The AJO-DO CONSORT adherence strategy, initiated in June 2011, involves active assessment of randomized clinical trial (RCT) reporting during the editorial process. The completeness of reporting CONSORT items was compared between trials submitted and published during the implementation period (July 2011 to September 2013) and trials published between August 2007 and July 2009. Of the 42 RCTs submitted (July 2011 to September 2013), 23 were considered for publication and assessed for completeness of reporting, seven of which were eventually published. For all published RCTs between 2007 and 2009 (n = 20), completeness of reporting by CONSORT item ranged from 0% to 100% (Median = 40%, interquartile range = 60%). All published trials in 2011-2013, reported 33 of 37 CONSORT (sub) items. Four CONSORT 2010 checklist items remained problematic even after implementation of the adherence strategy: changes to methods (3b), changes to outcomes (6b) after the trial commenced, interim analysis (7b), and trial stopping (14b), which are typically only reported when applicable. Trials published following implementation of the AJO-DO CONSORT adherence strategy completely reported more CONSORT items than those published or submitted previously. Copyright © 2014 Elsevier Inc. All rights reserved.

  9. African Journals Online: Art & Architecture

    African Journals Online (AJOL)

    Items 1 - 18 of 18 ... African Journal for Physical Activity and Health Sciences ... AFRREV IJAH: An International Journal of Arts and Humanities .... from the present context of economic, political, cultural and technological changes, the journal aims ...

  10. Imbalance in individual researcher's peer review activities quantified for four British Ecological Society journals, 2003-2010.

    Science.gov (United States)

    Petchey, Owen L; Fox, Jeremy W; Haddon, Lindsay

    2014-01-01

    Researchers contribute to the scientific peer review system by providing reviews, and "withdraw" from it by submitting manuscripts that are subsequently reviewed. So far as we are aware, there has been no quantification of the balance of individual's contributions and withdrawals. We compared the number of reviews provided by individual researchers (i.e., their contribution) to the number required by their submissions (i.e. their withdrawals) in a large and anonymised database provided by the British Ecological Society. The database covered the Journal of Ecology, Journal of Animal Ecology, Journal of Applied Ecology, and Functional Ecology from 2003-2010. The majority of researchers (64%) did not have balanced contributions and withdrawals. Depending on assumptions, 12% to 44% contributed more than twice as much as required; 20% to 52% contributed less than half as much as required. Balance, or lack thereof, varied little in relation to the number of years a researcher had been active (reviewing or submitting). Researchers who contributed less than required did not lack the opportunity to review. Researchers who submitted more were more likely to accept invitations to review. These finding suggest overall that peer review of the four analysed journals is not in crisis, but only due to the favourable balance of over- and under-contributing researchers. These findings are limited to the four journals analysed, and therefore cannot include researcher's other peer review activities, which if included might change the proportions reported. Relatively low effort was required to assemble, check, and analyse the data. Broader analyses of individual researcher's peer review activities would contribute to greater quality, efficiency, and fairness in the peer review system.

  11. Zimbabwe Veterinary Journal

    African Journals Online (AJOL)

    Journal Homepage Image. Zimbabwe Veterinary Journal contains original and review papers on all aspects of animal health in Zimbabwe and SADC countries, including articles by non-veterinarians. This journal did not publish any issues between 2002 and 2015 but has been revived and and it actively accepting papers ...

  12. Journal of Pharmacy & Bioresources: Journal Sponsorship

    African Journals Online (AJOL)

    Journal of Pharmacy & Bioresources: Journal Sponsorship. Journal Home > About the Journal > Journal of Pharmacy & Bioresources: Journal Sponsorship. Log in or Register to get access to full text downloads.

  13. Journals Abroad

    Science.gov (United States)

    Ando, Shoichi

    1975-01-01

    This article summarizes four journal articles on language teaching appearing in the American pedagogical language journals, "The Modern Language Journal,""English Language Teaching Journal," and "TESOL Quarterly." The purpose is to give an indication of what kinds of articles can be found in journals outside Japan.…

  14. Journal Management

    African Journals Online (AJOL)

    The Journal Manager sees to all aspects of Journal Management, in consultation with the Editors, including setting up and configuring the journal system, enrolling users in the various roles needed to run the journal, setting up the various Sections of the journal, and many other managerial tasks.

  15. Journal Home

    African Journals Online (AJOL)

    for Researchers · for Journals · for Authors · for Policy Makers · about Open Access · Journal Quality. 521 African Journals. Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free To Read Titles This Journal is Open Access. Featuring journals from 32 Countries: Algeria (5); Benin (2); Botswana ...

  16. Creative Journalism: English, Journalism.

    Science.gov (United States)

    Adams, Marlene E.

    A course in the basic principles of journalism is presented. The principles are studied as applied to writing columns, reviews, feature stories, human interest articles, fashion reporting, comics, personality interviews, and other types of entertaining writing for the newspaper. Course objectives include: (1) The student will identify feature…

  17. Journalism Forum.

    Science.gov (United States)

    Journalism Educator, 1982

    1982-01-01

    Journalism teachers share ideas about copywriting assignments, research in public relations, student involvement in a television production, and the use of journalism classes to monitor language skills. (HOD)

  18. Naval Ocean Research and Development Activity Journal Index for 1976 thru 1984,

    Science.gov (United States)

    1985-03-01

    and Antibiotics. Venezuela Basin. Deep-Sea Research, v. 31, Botanica Marina, v. XXIV, p. 399-404. p. 403-414. Thompson, J. Dana (1978). Ocean Deserts...v. 29, n. 102, p. 286-295. Phytoplankton Extracellular Products. Botanica marina, v~. XXXVI, p. 375-381. Radl, C.J. and J.P. Welsh (1983). Inventory...Experiments tion and Antibiotics. Botanica Marina, v. XXIV, in the Indian River Estuary, Florida. Journal of p. 399-404. ?. Marine Research, v. 36, p, 569-593

  19. From Journals

    Directory of Open Access Journals (Sweden)

    Nedjeljko Frančula

    2013-06-01

    : Cartopolitics, geopolitics and boundaries in the Arctic, 2012, 4.International Journal of Geographical Information Science (CC, SCIE, SSCI (12H. Fan, L. Meng: A three-step approach of simplifying 3D buildings modeled by CityGML, 2012, 6.D. Hardy, J. Frew, M. F. Goodchild: Volunteered geographic information production as a spatial process, 2012, 7.P. Taillandier, J. Gaffuri: Improving map generalisation with new pruning heuristics, 2012, 7.ISPRS International Journal of Geo-Informationhttp://www.mdpi.com/journal/ijgiP. Neis, A. Zipf: Analyzing the contributor activity of a volunteered geographic information project — The case of OpenStreetMap, 2012, 2.P. Neis, M. Goetz, A. Zipf: Towards automatic vandalism detection in OpenStreetMap, 2012, 3.ISPRS Journal of Photogrammetry and Remote Sensing (CC, SCIEhttp://www.sciencedirect.com/science/journal/09242716J-H. Haunert: A symmetry detector for map generalization and urban-space analysis, Vol. 74, November 2012.Journal of Historical Geography (CC, SSC (12D. Fedman, C. Karacas: A cartographic fade to black: mapping the destruction of urban Japan during World War II, 2012, 3.M. Yilmaz: Historical mosque orientation in Turkey: Central-Western Anatolia Region, 1150‒1590, 2012, 4.Landscape Ecology (CC, SCIEhttp://link.springer.com/journal/10980J. Liang: Mapping large-scale forest dynamics: a geospatial approach, 2012, 8.Naše morehttp://hrcak.srce.hr/nase-moreI. Pavić: Geografsko-informacijski sus­tav i model razvoja pomorskoga ka­tastra, 2012, 5-6.Remote Sensing of Environment (CC, SCIEN. Levin, A. Heimowitz: Mapping spatial and temporal patterns of Mediterranean wildfires from MODIS, Vol. 126 November 2012.Tehnički vjesnik (SCIEhttp://hrcak.srce.hr/tehnicki-vjesnik R. Župan, D. Sruk, S. Frangeš: Experiment for determination of map graphics segment standard for handheld crisis maps management, 2012, 4.URISA Journalhttp://www.urisa.org/PSS_journal_archivesM. Martin, B. Peters, J. Corbett: Participatory asset mapping in the Lake

  20. The Flipped Journal Club

    OpenAIRE

    Bounds, Richard; Boone, Stephen

    2018-01-01

    Introduction: Educators struggle to develop a journal club format that promotes active participation from all levels of trainees. The explosion of social media compels residencies to incorporate the evaluation and application of these resources into evidence-based practice. We sought to design an innovative “flipped journal club” to achieve greater effectiveness in meeting goals and objectives among residents and faculty. Methods: Each journal club is focused o...

  1. Rotordynamic Evaluation of Full Scale Rotor on Tilting Pad Bearings with 0.1 and 0.3 Preload

    Directory of Open Access Journals (Sweden)

    Weimin Wang

    2014-01-01

    Full Text Available A system identification method for rotating machinery stability evaluation is investigated based on sine sweep excitation testing with electromagnetic actuator. The traditional MIMO FRF is transformed into dFRF from real number field to complex field with a transformation matrix, eliminating the influence of forward and backward modal overlap and providing higher accuracy to identify rotor’s first forward modal parameters using the rational polynomial method. The modal parameters are acquired for stability estimation. Furthermore, two sets of bearing with preloads of 0.1 and 0.3 under both load-on-pad (LOP and load-between-pad (LBP conditions are investigated. The effects of oil inlet pressure (1.0 bar–1.75 bar and temperature (43°C–51°C on the stability of rotor are investigated in detail. Results indicate that the stability of rotor will be improved by increasing the oil inlet temperature and pressure. It is found that the rotor is more stable on bearing with 0.1 preload than that of 0.3 preload. Load-on-pad provides more damping to rotor than load-between-pad. The method and outcomes of this paper can provide both theory basis and technology foundation for improving the rotor stability of centrifugal compressors.

  2. International Journal of Humanistic Studies: Journal Sponsorship

    African Journals Online (AJOL)

    International Journal of Humanistic Studies: Journal Sponsorship. Journal Home > About the Journal > International Journal of Humanistic Studies: Journal Sponsorship. Log in or Register to get access to full text downloads.

  3. Nigerian Journal of Gastroenterology and Hepatology: Journal ...

    African Journals Online (AJOL)

    Nigerian Journal of Gastroenterology and Hepatology: Journal Sponsorship. Journal Home > About the Journal > Nigerian Journal of Gastroenterology and Hepatology: Journal Sponsorship. Log in or Register to get access to full text downloads.

  4. East African Journal of Statistics: Journal Sponsorship

    African Journals Online (AJOL)

    East African Journal of Statistics: Journal Sponsorship. Journal Home > About the Journal > East African Journal of Statistics: Journal Sponsorship. Log in or Register to get access to full text downloads.

  5. Nigerian Journal of General Practice: Journal Sponsorship

    African Journals Online (AJOL)

    Nigerian Journal of General Practice: Journal Sponsorship. Journal Home > About the Journal > Nigerian Journal of General Practice: Journal Sponsorship. Log in or Register to get access to full text downloads.

  6. African Journal of Infectious Diseases: Journal Sponsorship

    African Journals Online (AJOL)

    African Journal of Infectious Diseases: Journal Sponsorship. Journal Home > About the Journal > African Journal of Infectious Diseases: Journal Sponsorship. Log in or Register to get access to full text downloads.

  7. West African Journal of Radiology: Journal Sponsorship

    African Journals Online (AJOL)

    West African Journal of Radiology: Journal Sponsorship. Journal Home > About the Journal > West African Journal of Radiology: Journal Sponsorship. Log in or Register to get access to full text downloads.

  8. African Journal of Neurological Sciences: Journal Sponsorship

    African Journals Online (AJOL)

    African Journal of Neurological Sciences: Journal Sponsorship. Journal Home > About the Journal > African Journal of Neurological Sciences: Journal Sponsorship. Log in or Register to get access to full text downloads.

  9. African Journal of AIDS Research: Journal Sponsorship

    African Journals Online (AJOL)

    African Journal of AIDS Research: Journal Sponsorship. Journal Home > About the Journal > African Journal of AIDS Research: Journal Sponsorship. Log in or Register to get access to full text downloads.

  10. African Journal of Political Science: Journal Sponsorship

    African Journals Online (AJOL)

    African Journal of Political Science: Journal Sponsorship. Journal Home > About the Journal > African Journal of Political Science: Journal Sponsorship. Log in or Register to get access to full text downloads.

  11. African Journal of Management Research: Journal Sponsorship

    African Journals Online (AJOL)

    African Journal of Management Research: Journal Sponsorship. Journal Home > About the Journal > African Journal of Management Research: Journal Sponsorship. Log in or Register to get access to full text downloads.

  12. Journal of Civil Engineering, JKUAT: Journal Sponsorship

    African Journals Online (AJOL)

    Journal of Civil Engineering, JKUAT: Journal Sponsorship. Journal Home > About the Journal > Journal of Civil Engineering, JKUAT: Journal Sponsorship. Log in or Register to get access to full text downloads.

  13. New Egyptian Journal of Microbiology: Journal Sponsorship

    African Journals Online (AJOL)

    New Egyptian Journal of Microbiology: Journal Sponsorship. Journal Home > About the Journal > New Egyptian Journal of Microbiology: Journal Sponsorship. Log in or Register to get access to full text downloads.

  14. Mgbakoigba: Journal of African Studies: Journal Sponsorship

    African Journals Online (AJOL)

    Mgbakoigba: Journal of African Studies: Journal Sponsorship. Journal Home > About the Journal > Mgbakoigba: Journal of African Studies: Journal Sponsorship. Log in or Register to get access to full text downloads.

  15. Active lubrication applied to radial gas journal bearings. Part 2: Modelling improvement and experimental validation

    DEFF Research Database (Denmark)

    Pierart, Fabián G.; Santos, Ilmar F.

    2016-01-01

    Actively-controlled lubrication techniques are applied to radial gas bearings aiming at enhancing one of their most critical drawbacks, their lack of damping. A model-based control design approach is presented using simple feedback control laws, i.e. proportional controllers. The design approach...... by finite element method and the global model is used as control design tool. Active lubrication allows for significant increase in damping factor of the rotor-bearing system. Very good agreement between theory and experiment is obtained, supporting the multi-physic design tool developed....

  16. Linear and Non-Linear Control Techniques Applied to Actively Lubricated Journal Bearings

    DEFF Research Database (Denmark)

    Nicoletti, Rodrigo; Santos, Ilmar

    2003-01-01

    The main objectives of actively lubricated bearings are the simultaneous reduction of wear and vibration between rotating and stationary machinery parts. For reducing wear and dissipating vibration energy until certain limits, one can count with the conventional hydrodynamic lubrication. For furt......The main objectives of actively lubricated bearings are the simultaneous reduction of wear and vibration between rotating and stationary machinery parts. For reducing wear and dissipating vibration energy until certain limits, one can count with the conventional hydrodynamic lubrication....... For further reduction of shaft vibrations one can count with the active lubrication action, which is based on injecting pressurised oil into the bearing gap through orifices machined in the bearing sliding surface. The design and efficiency of some linear (PD, PI and PID) and non-linear controllers, applied...... vibration reduction of unbalance response of a rigid rotor, where the PD and the non-linear P controllers show better performance for the frequency range of study (0 to 80 Hz). The feasibility of eliminating rotor-bearing instabilities (phenomena of whirl) by using active lubrication is also investigated...

  17. AJEMS - a new journal

    DEFF Research Database (Denmark)

    Kuada, John

    2010-01-01

    African Journal of Economic and Management Studies (AJEMS) provides an avenue for disseminating empirical research results, as well as theoretical viewpoints and methodologies that could impact positively on economic and business activities in Africa.......African Journal of Economic and Management Studies (AJEMS) provides an avenue for disseminating empirical research results, as well as theoretical viewpoints and methodologies that could impact positively on economic and business activities in Africa....

  18. Lifestyle Journalism

    DEFF Research Database (Denmark)

    From, Unni; Kristensen, Nete Nørgaard

    2013-01-01

    Lifestyle journalism has experienced enormous growth in the media over the past two decades, but scholars in the fields of journalism and communication studies have so far paid relatively little attention to a field that is still sometimes seen as "not real journalism". There is now an urgent need...... for in-depth exploration and contextualisation of this field, with its increasing relevance for 21st century consumer cultures. For the first time, this book presents a wide range of studies which have engaged with the field of lifestyle journalism in order to outline the various political, economic...... of sub-fields such as travel, music, food, health, fashion and personal technology journalism. This volume provides a fascinating account of the different facets of lifestyle journalism, and charts the way forward for a more sustained analysis of the field. This book was originally published as a special...

  19. Ethnographic journalism

    DEFF Research Database (Denmark)

    Hermann, Anne Kirstine

    2016-01-01

    require more contextual reporting, ethnographic journalism emerges in American feature journalism. Analyzed holistically, this genre is characterized as the employment of immersion strategies adopted from social science for distinct storytelling purposes. These methods, however, transform conventional......Accounting for emerging journalistic genres is a difficult endeavor not least because there is little agreement as to what constitutes journalism itself. Doing so, however, is essential if we are to recognize changing journalistic doxas. To capture such changes, we must include a holistic framework...... journalistic epistemology, changing it through practice. In turn, the analysis reveals how journalism practices can evolve its troubled philosophical position...

  20. New Journalism.

    Science.gov (United States)

    Fishwick, Marshall, Ed.

    This volume contains a selection of articles which examine, critique, and help to define the phenomenon of new journalism. Included are "Popular Culture and the New Journalism" (Marshall Fishwick), "Entrance" (Richard A. Kallan), "How 'New'?" (George A. Hough III), "Journalistic Primitivism" (Everette E. Dennis), "Wherein Lies the Value?" (Michael…

  1. Zede Journal

    African Journals Online (AJOL)

    Zede is a scientific journal on engineering science and application, produced under the auspices of the Addis Ababa Institute of Technology, Addis Ababa University. The main objective of the journal is to publish research articles, findings and discussions on engineering sciences, technology and architecture thereby ...

  2. Journal History

    African Journals Online (AJOL)

    Tanzania Journal of Health Research was established in 1997 as Tanzania Health Research Bulletin. ISSN: 1821-9241. 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.

  3. Good journalism or peace journalism?

    OpenAIRE

    David Loyn

    2007-01-01

    This paper argues against the prescriptive notions of Peace Journalism, and in particular its exclusive nature and attempt to define itself as a new orthodoxy. Most of the paper is a critique of the work of Jake Lynch and Annabel McGoldrick, in a book published in 2005, as well as their earlier Reporting the World series. They condemn all other ways of reporting as 'War Journalism, biased in favour of war.' I argue instead that the opposite of Peace Journalism is good journalism. Much of ...

  4. VIDEO BLOGGING AS AN INNOVATIVE FORM OF THE PROJECT ACTIVITY IN FOREIGN LANGUAGE TEACHING TO JOURNALISM STUDENTS

    Directory of Open Access Journals (Sweden)

    M. V. Petrova

    2018-01-01

    didactic questions in the article. These questions have appeared in the process of the development and the implementation of the media project “Episch! Deutsch”, created in 2015 within the framework of the subject “German language” at the Department of Media Linguistics of the Faculty of Journalism of Moscow State University named after M. V. Lomonosov. The conclusion is made that it is necessary to develop methodological criteria and educational standards that regulate video blogging as a way of teaching and methodological work, also a providing an opportunity for development of teachers’ professional qualification. Practical significance. The materials of the present publication can be useful for future and practicing teachers of a foreign language, as well as for other categories of educators engaged in organization of educational project activities.

  5. Measurements versus Predictions for a Hybrid (Hydrostatic Plus Hydrodynamic) Thrust Bearing for a Range of Orifice Diameters

    Science.gov (United States)

    2010-05-01

    Type of Lubrication for a Tilting Pad Thrust Bearing ,” ASME Journal of Lubrication Technology, 96 Ser F (1), pp. 22-27. [9] Gregory, R.S., 1974...1986, “Measurements of Maximum Temperature in Tilting - Pad Thrust Bearings ,” Technical Preprints - Presented at the ASLE 41st Annual Meeting. (ASLE...Safar [7] provides a modified Reynolds number analysis on hydrostatic thrust bearing performance parameters including the effects of tilt . Finally, San

  6. News Quantum physics: German Physical Society spring meeting Journal access: American Physical Society's online journals will be available for free in all US high schools Award: High-school physics teacher receives American award for excellence Teacher training: Fobinet offers coordination of teacher-training activities Astronomy: Astronomy fans see stars at Astrofest Conference: Delegates enjoy the workshops and activities at CPD conference Forthcoming events

    Science.gov (United States)

    2011-05-01

    Quantum physics: German Physical Society spring meeting Journal access: American Physical Society's online journals will be available for free in all US high schools Award: High-school physics teacher receives American award for excellence Teacher training: Fobinet offers coordination of teacher-training activities Astronomy: Astronomy fans see stars at Astrofest Conference: Delegates enjoy the workshops and activities at CPD conference Forthcoming events

  7. Lifestyle Journalism

    DEFF Research Database (Denmark)

    From, Unni; Kristensen, Nete Nørgaard

    2013-01-01

    for in-depth exploration and contextualisation of this field, with its increasing relevance for 21st century consumer cultures. For the first time, this book presents a wide range of studies which have engaged with the field of lifestyle journalism in order to outline the various political, economic......Lifestyle journalism has experienced enormous growth in the media over the past two decades, but scholars in the fields of journalism and communication studies have so far paid relatively little attention to a field that is still sometimes seen as "not real journalism". There is now an urgent need......, social and cultural tensions within it. Taking a comparative view, the collection includes studies covering four continents, including countries such as Australia, China, Norway, Denmark, Singapore, the UK and the USA. While keeping the broader lifestyle field in mind, the chapters focus on a variety...

  8. African Journals Online: Ghana

    African Journals Online (AJOL)

    Items 1 - 27 of 27 ... African Journal of Educational Studies in Mathematics and Sciences .... The Ghana Medical Journal is a peer-reviewed, open access journal ... The Journal of Business Research (JBR) is an International journal published by ...

  9. The Flipped Journal Club

    Directory of Open Access Journals (Sweden)

    Richard Bounds

    2017-12-01

    Full Text Available Introduction Educators struggle to develop a journal club format that promotes active participation from all levels of trainees. The explosion of social media compels residencies to incorporate the evaluation and application of these resources into evidence-based practice. We sought to design an innovative “flipped journal club” to achieve greater effectiveness in meeting goals and objectives among residents and faculty. Methods Each journal club is focused on a specific clinical question based on a landmark article, a background article, and a podcast or blog post. With the “flipped” model, residents are assigned to prepare an in-depth discussion of one of these works based on their level of training. At journal club, trainees break into small groups and discuss their assigned readings with faculty facilitation. Following the small-group discussions, all participants convene to summarize key points. In redesigning our journal club, we sought to achieve specific educational outcomes, and improve participant engagement and overall impressions. Results Sixty-one residents at our emergency medicine program participated in the flipped journal club during the 2015–2016 academic year, with supervision by core faculty. Program evaluation for the flipped journal club was performed using an anonymous survey, with response rates of 70% and 56% for residents and faculty, respectively. Overall, 95% of resident respondents and 100% of faculty respondents preferred the flipped format. Conclusion The “flipped journal club” hinges upon well-selected articles, incorporation of social media, and small-group discussions. This format engages all residents, holds learners accountable, and encourages greater participation among residents and faculty.

  10. The Flipped Journal Club.

    Science.gov (United States)

    Bounds, Richard; Boone, Stephen

    2018-01-01

    Educators struggle to develop a journal club format that promotes active participation from all levels of trainees. The explosion of social media compels residencies to incorporate the evaluation and application of these resources into evidence-based practice. We sought to design an innovative "flipped journal club" to achieve greater effectiveness in meeting goals and objectives among residents and faculty. Each journal club is focused on a specific clinical question based on a landmark article, a background article, and a podcast or blog post. With the "flipped" model, residents are assigned to prepare an in-depth discussion of one of these works based on their level of training. At journal club, trainees break into small groups and discuss their assigned readings with faculty facilitation. Following the small-group discussions, all participants convene to summarize key points. In redesigning our journal club, we sought to achieve specific educational outcomes, and improve participant engagement and overall impressions. Sixty-one residents at our emergency medicine program participated in the flipped journal club during the 2015-2016 academic year, with supervision by core faculty. Program evaluation for the flipped journal club was performed using an anonymous survey, with response rates of 70% and 56% for residents and faculty, respectively. Overall, 95% of resident respondents and 100% of faculty respondents preferred the flipped format. The "flipped journal club" hinges upon well-selected articles, incorporation of social media, and small-group discussions. This format engages all residents, holds learners accountable, and encourages greater participation among residents and faculty.

  11. Journalism Forum

    Science.gov (United States)

    Journalism Educator, 1985

    1985-01-01

    Includes (1) survey results indicating value of traditional journalism and mass communication research; (2) survey results indicating knowledge of grammar, economics, and government are journalists' most valuable resources; (3) methods for teaching listening skills; (4) suggestions for giving public relations students an overview online services;…

  12. New journals

    NARCIS (Netherlands)

    NN,

    1977-01-01

    Brunonia is the title of a journal that will replace the Contributions from Herbarium Australiense (last no. 17, 1976). Subscriptions Aust. $ 4. annual, Herbarium Australiense, P.O. Box 1600, Canberra City, A.C.T. 2601, Australia. Nature Malaysiana, published quarterly by Tropical Press, 64A Jl.

  13. New journals

    NARCIS (Netherlands)

    NN,

    1976-01-01

    Applied Ecology Abstracts, compiled and published by Information Retrieval Ltd. 1 Falconberg Court, London W1V 5FG, U.K. A monthly, each issue carrying c. 800 abstracts and author index. Price vol. 1, Jan.-Dec. 1975, surface mail £ 60, airmail £ 73. It is claimed that 4300 journals and other

  14. Dialogic Reflection and Journaling.

    Science.gov (United States)

    Hughes, Herman Woodrow; And Others

    1997-01-01

    Notes that educators at all levels are involved in a paradigm shift--from the view that knowledge is an external entity existing independently of human thought and action to knowledge as mutually constructed by teacher and student. Describes the use of a double-entry journal that engages learners actively in constructing their own meanings. (RS)

  15. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Ethiopian Journal of Education and Sciences; Educational leadership and ... Ethiopian Journal of Education and Sciences; Establishing financial markets in Ethiopia: the environmental foundation, challenges ... South African Actuarial Journal.

  16. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Featured Country: Ghana, Featured Journal: Journal of Business Research. Most recent issues on AJOL: Vol 13 (2017). African Journal of Educational Studies in Mathematics and Sciences. Vol 7 (2017) ... Vol 6, No 2 (2014). Journal of ...

  17. Tanzania Medical Journal

    African Journals Online (AJOL)

    The journal publishes any contribution that advances medical science or ... these core objectives the journal publishes papers on original scientific research, short ... The Tanzania Medical Journal is an international Journal - ISSN: 0856-0719 ...

  18. African Crop Science Journal

    African Journals Online (AJOL)

    African Crop Science Journal. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 1, No 2 (1993) >. Log in or Register to get access to full text downloads.

  19. African Crop Science Journal

    African Journals Online (AJOL)

    African Crop Science Journal. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 22 (2014) >. Log in or Register to get access to full text downloads.

  20. SA Journal of Radiology

    African Journals Online (AJOL)

    SA Journal of Radiology. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 19, No 2 (2015) >. Log in or Register to get access to full text downloads.

  1. SA Journal of Radiology

    African Journals Online (AJOL)

    SA Journal of Radiology. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 21, No 1 (2017) >. Log in or Register to get access to full text downloads.

  2. Ethiopian Veterinary Journal

    African Journals Online (AJOL)

    Ethiopian Veterinary Journal. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 15, No 1 (2011) >. Log in or Register to get access to full text downloads.

  3. Nigerian Journal of Physics

    African Journals Online (AJOL)

    Nigerian Journal of Physics. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 18, No 2 (2006) >. Log in or Register to get access to full text downloads.

  4. Nigerian Journal of Physics

    African Journals Online (AJOL)

    Nigerian Journal of Physics. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 20, No 1 (2008) >. Log in or Register to get access to full text downloads.

  5. Nigerian Journal of Physics

    African Journals Online (AJOL)

    Nigerian Journal of Physics. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 18, No 1 (2006) >. Log in or Register to get access to full text downloads.

  6. Good journalism or peace journalism?

    Directory of Open Access Journals (Sweden)

    David Loyn

    2007-10-01

    Full Text Available This paper argues against the prescriptive notions of Peace Journalism, and in particular its exclusive nature and attempt to define itself as a new orthodoxy. Most of the paper is a critique of the work of Jake Lynch and Annabel McGoldrick, in a book published in 2005, as well as their earlier Reporting the World series. They condemn all other ways of reporting as 'War Journalism, biased in favour of war.' I argue instead that the opposite of Peace Journalism is good journalism. Much of this Peace Journalism argument is derived from the work of Johan Galtung, who accuses 'war journalists' of reporting war in an enclosed space and time, with no context, concealing peace initiatives and making wars 'opaque/secret.' Galtung specifically calls on journalists as part of their mission to search out peace proposals which might begin as something small and beneath notice, but which might then be picked up and owned by politicians as their own. My response is clear and simple: creating peacemaking politicians is not the business of a reporter. I examine the traditional journalistic methods of using objectivity to get at a version of the truth. I concede that perfect truth is unattainable, (and paradoxically the tool of objectivity we use to get there is slippery too. I conclude that a more quotidian truth, or 'truthfulness' is though a manageable goal. I engage with philosophers who examine objectivity, concluding with the assistance of Thomas Nagel that it does still have a value. Nagel's account also has the merit of explaining how practices such as peace-reporting are bound to be less objective than alternatives, 'since they commit themselves to the adoption of particular perspectives, in effect giving up on the ideal of stripping away as much…as possible.' I examine the responses of the so-called 'journalism of attachment' framed as a desire of journalists faced by the horrors of Bosnia to cast off impartiality and emotional detachment and take

  7. African Journals Online: Biology & Life Sciences

    African Journals Online (AJOL)

    Items 1 - 50 of 71 ... African Journal for Physical Activity and Health Sciences ... in the promotion of scientific proceedings and publications in developing countries. ... and proteomics, food and agricultural technologies, and metabolic engineering. ... The African Journal of Chemical Education (AJCE) is a biannual online journal ...

  8. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. C SUDHEER KUMAR. Articles written in Journal of Biosciences. Volume 42 Issue 3 September 2017 pp 469-479 Article. Modulation of chaperone-like and membranolytic activities of major horse seminal plasma protein HSP-1/2 by L-carnitine · C SUDHEER KUMAR MUSTI J ...

  9. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. L Singh. Articles written in Journal of Biosciences. Volume 36 Issue 4 September 2011 pp 739-748 Review. Mango ginger (Curcuma amada Roxb.) – A promising spice for phytochemicals and biological activities · R S Policegoudra S M Aradhya L Singh · More Details Abstract ...

  10. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. PAIKE JAYADEVA BHAT. Articles written in Journal of Biosciences. Volume 34 Issue 4 October 2009 pp 513-522 Articles. Epigenetics of the yeast galactose genetic switch · Paike Jayadeva Bhat Revathi S Iyer · More Details Abstract Fulltext PDF. The transcriptional activation of ...

  11. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. M Balasubramanyam. Articles written in Journal of Biosciences. Volume 26 Issue 3 September 2001 pp 383-390 Review Article. Orally active insulin mimics: where do we stand now? M Balasubramanyam V Mohan · More Details Abstract Fulltext PDF. The war against diabetes ...

  12. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. Piyali Ganguli. Articles written in Journal of Biosciences. Volume 40 Issue 4 October 2015 pp 769-789 Articles. Temporal protein expression pattern in intracellular signalling cascade during T-cell activation: A computational study · Piyali Ganguli Saikat Chowdhury Rupa Bhowmick ...

  13. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. Jaeok Lee. Articles written in Journal of Biosciences. Volume 36 Issue 2 June 2011 pp 341-354 Articles. Inhibitory activity of the peptides derived from buffalo prolactin on angiogenesis · Jaeok Lee Syamantak Majumder Suvro Chatterjee Kambadur Muralidhar · More Details Abstract ...

  14. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. JEDY JOSE. Articles written in Journal of Biosciences. Volume 42 Issue 3 September 2017 pp 363-371 Brief communication. Amalaki Rasayana improved memory and neuronal metabolic activity in AβPP-PS1 mouse model of Alzheimer's disease · VIVEK TIWARI KAMAL SABA ...

  15. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. ANANT B PATEL. Articles written in Journal of Biosciences. Volume 42 Issue 3 September 2017 pp 363-371 Brief communication. Amalaki Rasayana improved memory and neuronal metabolic activity in AβPP-PS1 mouse model of Alzheimer's disease · VIVEK TIWARI KAMAL SABA ...

  16. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences. STHITAPRANJYA PATI. Articles written in Journal of Biosciences. Volume 43 Issue 1 March 2018 pp 85-95 Article. Acute pharmacogenetic activation of medial prefrontal cortex excitatory neurons regulates anxiety-like behaviour · STHITAPRANJYA PATI ANKIT SOOD SOURISH ...

  17. What are Journals for?

    Science.gov (United States)

    Rallison, S P

    2015-03-01

    'The secret is comprised in three words - work, finish, publish.' Michael Faraday There are many reasons doctors want to publish their work. For most at an early stage in their career, this may be to add a line to their curriculum vitae and advance their careers but for academics, publishing is an expectation. Many will believe they have something important to say, and wish to provoke debate and discussion; others wish to share knowledge and experiences, which in medicine can lead to a satisfying change in clinical practice. All serve to register one's idea and educate others. However, for some, the reason is as basic as money. As we celebrate the 350th anniversary of the first academic publication, perhaps we have come full circle when it comes to why people publish? Publishing is a flourishing business. There were approximately 28,100 active scholarly peer-reviewed journals in mid-2012, collectively publishing about 1.8-1.9 million articles per year. The number of articles published each year and the number of journals have both grown steadily for more than two centuries, by about 3% and 3.5% per year respectively. (1) Journals have a responsibility to refine and define information and act as a scientific filter. Many of us will receive daily invitations in our email inbox from eclectic and new journals that are likely to take anything - is the filter now too porous? But this industry is like any other commercial activity and the supply still far outstrips the demand. Perhaps the internet revolution has merely fuelled our hunger to publish more? The launch of this exciting and innovative series about publishing coincides with the 350th celebration of the publication of the first academic journal. In the age of social media, the first question is 'What are journals for?', which Simon Rallison sets out to answer. Simon is Director of Publications at the Physiological Society, and was previously a journal publisher with Earthscan, Springer and Blackwell. Writing is

  18. International Journal of Development and Policy Studies: Journal ...

    African Journals Online (AJOL)

    International Journal of Development and Policy Studies: Journal Sponsorship. Journal Home > About the Journal > International Journal of Development and Policy Studies: Journal Sponsorship. Log in or Register to get access to full text downloads.

  19. East African Journal of Public Health: Journal Sponsorship

    African Journals Online (AJOL)

    East African Journal of Public Health: Journal Sponsorship. Journal Home > About the Journal > East African Journal of Public Health: Journal Sponsorship. Log in or Register to get access to full text downloads.

  20. Scopus: Journal of East African Ornithology: Journal Sponsorship

    African Journals Online (AJOL)

    Scopus: Journal of East African Ornithology: Journal Sponsorship. Journal Home > About the Journal > Scopus: Journal of East African Ornithology: Journal Sponsorship. Log in or Register to get access to full text downloads.

  1. Western Indian Ocean Journal of Marine Science: Journal ...

    African Journals Online (AJOL)

    Western Indian Ocean Journal of Marine Science: Journal Sponsorship. Journal Home > About the Journal > Western Indian Ocean Journal of Marine Science: Journal Sponsorship. Log in or Register to get access to full text downloads.

  2. African Journal of Oral Health Sciences: Journal Sponsorship

    African Journals Online (AJOL)

    African Journal of Oral Health Sciences: Journal Sponsorship. Journal Home > About the Journal > African Journal of Oral Health Sciences: Journal Sponsorship. Log in or Register to get access to full text downloads.

  3. South African Journal of Bioethics and Law: Journal Sponsorship

    African Journals Online (AJOL)

    South African Journal of Bioethics and Law: Journal Sponsorship. Journal Home > About the Journal > South African Journal of Bioethics and Law: Journal Sponsorship. Log in or Register to get access to full text downloads.

  4. Creative Artist: A Journal of Theatre and Media Studies: Journal ...

    African Journals Online (AJOL)

    Creative Artist: A Journal of Theatre and Media Studies: Journal Sponsorship. Journal Home > About the Journal > Creative Artist: A Journal of Theatre and Media Studies: Journal Sponsorship. Log in or Register to get access to full text downloads.

  5. African Journal of Finance and Management: Journal Sponsorship

    African Journals Online (AJOL)

    African Journal of Finance and Management: Journal Sponsorship. Journal Home > About the Journal > African Journal of Finance and Management: Journal Sponsorship. Log in or Register to get access to full text downloads.

  6. Journal of Research in Forestry, Wildlife and Environment: Journal ...

    African Journals Online (AJOL)

    Journal of Research in Forestry, Wildlife and Environment: Journal Sponsorship. Journal Home > About the Journal > Journal of Research in Forestry, Wildlife and Environment: Journal Sponsorship. Log in or Register to get access to full text downloads.

  7. Lagos Journal of Library and Information Science: Journal ...

    African Journals Online (AJOL)

    Lagos Journal of Library and Information Science: Journal Sponsorship. Journal Home > About the Journal > Lagos Journal of Library and Information Science: Journal Sponsorship. Log in or Register to get access to full text downloads.

  8. Science, Technology and Arts Research Journal: Journal Sponsorship

    African Journals Online (AJOL)

    Science, Technology and Arts Research Journal: Journal Sponsorship. Journal Home > About the Journal > Science, Technology and Arts Research Journal: Journal Sponsorship. Log in or Register to get access to full text downloads.

  9. South African Journal of Sports Medicine: Journal Sponsorship

    African Journals Online (AJOL)

    South African Journal of Sports Medicine: Journal Sponsorship. Journal Home > About the Journal > South African Journal of Sports Medicine: Journal Sponsorship. Log in or Register to get access to full text downloads.

  10. Tanzania Journal of Forestry and Nature Conservation: Journal ...

    African Journals Online (AJOL)

    Tanzania Journal of Forestry and Nature Conservation: Journal Sponsorship. Journal Home > About the Journal > Tanzania Journal of Forestry and Nature Conservation: Journal Sponsorship. Log in or Register to get access to full text downloads.

  11. West African Journal of Applied Ecology: Journal Sponsorship

    African Journals Online (AJOL)

    West African Journal of Applied Ecology: Journal Sponsorship. Journal Home > About the Journal > West African Journal of Applied Ecology: Journal Sponsorship. Log in or Register to get access to full text downloads.

  12. Journal of History and Diplomatic Studies: Journal Sponsorship

    African Journals Online (AJOL)

    Journal of History and Diplomatic Studies: Journal Sponsorship. Journal Home > About the Journal > Journal of History and Diplomatic Studies: Journal Sponsorship. Log in or Register to get access to full text downloads.

  13. Journal of Computer Science and Its Application: Journal Sponsorship

    African Journals Online (AJOL)

    Journal of Computer Science and Its Application: Journal Sponsorship. Journal Home > About the Journal > Journal of Computer Science and Its Application: Journal Sponsorship. Log in or Register to get access to full text downloads.

  14. Nigeria Journal of Pure and Applied Physics: Journal Sponsorship

    African Journals Online (AJOL)

    Nigeria Journal of Pure and Applied Physics: Journal Sponsorship. Journal Home > About the Journal > Nigeria Journal of Pure and Applied Physics: Journal Sponsorship. Log in or Register to get access to full text downloads.

  15. Journal of the Nigerian Association of Mathematical Physics: Journal ...

    African Journals Online (AJOL)

    Journal of the Nigerian Association of Mathematical Physics: Journal Sponsorship. Journal Home > About the Journal > Journal of the Nigerian Association of Mathematical Physics: Journal Sponsorship. Log in or Register to get access to full text downloads.

  16. OGIRISI: a New Journal of African Studies: Journal Sponsorship

    African Journals Online (AJOL)

    OGIRISI: a New Journal of African Studies: Journal Sponsorship. Journal Home > About the Journal > OGIRISI: a New Journal of African Studies: Journal Sponsorship. Log in or Register to get access to full text downloads.

  17. Archives: Nigerian Veterinary Journal

    African Journals Online (AJOL)

    Items 1 - 49 of 49 ... Archives: Nigerian Veterinary Journal. Journal Home > Archives: Nigerian Veterinary Journal. 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. 1 - 49 of 49 Items ...

  18. ChemSearch Journal

    African Journals Online (AJOL)

    Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives. Journal Homepage Image. Chemsearch Journal is a peer – reviewed journal that publishes original research work, scientific papers and technical reports in all the field of Chemistry (pure science, agriculture, environmental science, ...

  19. Journalism Beyond High School.

    Science.gov (United States)

    Turner, Sally

    2001-01-01

    Discusses the shift from high school journalism to college journalism for students. Describes the role of the high school journalism advisor in that process. Offers checklists for getting to know a college publication. Outlines ways high school journalism teachers can take advantage of journalism resources available at local colleges and…

  20. Archives: Ethiopian Veterinary Journal

    African Journals Online (AJOL)

    Items 1 - 16 of 16 ... Archives: Ethiopian Veterinary Journal. Journal Home > Archives: Ethiopian Veterinary Journal. 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. 1 - 16 of 16 Items ...

  1. Archives: Malawi Medical Journal

    African Journals Online (AJOL)

    Items 1 - 50 of 72 ... Archives: Malawi Medical Journal. Journal Home > Archives: Malawi Medical Journal. 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. 1 - 50 of 72 Items, 1 2 > >> ...

  2. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest and pre-eminent collection of peer-reviewed, ... Featured Country: Ethiopia, Featured Journal: AFRREV STECH: An International Journal of Science and Technology ... Journal of Agriculture, Forestry and the Social Sciences. Vol 38, No 2 ... Journal of Applied Biosciences.

  3. Malawi Medical Journal

    African Journals Online (AJOL)

    for Researchers · for Journals · for Authors · for Policy Makers · about Open Access · Journal Quality. 521 African Journals. Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free To Read Titles This Journal is Open Access. Featuring journals from 32 Countries: Algeria (5); Benin (2); Botswana ...

  4. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Shakespeare in Southern Africa. Vol 28, No 1 (2018). Ethiopian Journal of Agricultural Sciences. Vol 15, No 1 (2018). SAHARA-J: Journal of Social Aspects of HIV/AIDS. Vol 20, No 10 (2017). Nigerian Journal of Clinical Practice. Vol 108, No 2 (2018). South African Medical Journal. Vol 21, No 1 (2018). Nigerian Journal of ...

  5. Nigerian Food Journal: Contact

    African Journals Online (AJOL)

    Nigerian Food Journal. ... Nigerian Food Journal: Contact. Journal Home > About the Journal > Nigerian Food Journal: Contact. Log in or Register to get access to full text downloads. ... Mailing Address. Department of Food Science and Technology University of Agriculture, Makurdi, Nigeria ...

  6. Innovation: About this journal

    African Journals Online (AJOL)

    for Researchers · for Journals · for Authors · for Policy Makers · about Open Access · Journal Quality. 521 African Journals. Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free To Read Titles This Journal is Open Access. Featuring journals from 32 Countries: Algeria (5); Benin (2); Botswana ...

  7. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journal of Oral Health. Vol 35, No 1-2 (2017). Egyptian Journal of Biochemistry and Molecular Biology. Vol 7, No 3 (2017). African Journal of Chemical Education. Vol 8, No 2 (2017): Journal of Language, Technology & Entrepreneurship in Africa. Journal of Language, Technology & Entrepreneurship in Africa.

  8. Journaling: creating space for "I".

    Science.gov (United States)

    Charles, Jennell P

    2010-01-01

    As nurses engaged in a caring profession, it is critical that we learn not only to care for others but also to care for ourselves. To care effectively for ourselves, we must create the space and time in which to do this. Journaling is one tool that scholars offer as a way to create this space. Although there is no clear consensus about the best techniques for journaling, there is evidence that journaling, as a reflective, meditative activity, can promote creativity, self-awareness, and personal development.

  9. Journal bearing

    Science.gov (United States)

    Menke, John R.; Boeker, Gilbert F.

    1976-05-11

    1. An improved journal bearing comprising in combination a non-rotatable cylindrical bearing member having a first bearing surface, a rotatable cylindrical bearing member having a confronting second bearing surface having a plurality of bearing elements, a source of lubricant adjacent said bearing elements for supplying lubricant thereto, each bearing element consisting of a pair of elongated relatively shallowly depressed surfaces lying in a cylindrical surface co-axial with the non-depressed surface and diverging from one another in the direction of rotation and obliquely arranged with respect to the axis of rotation of said rotatable member to cause a flow of lubricant longitudinally along said depressed surfaces from their distal ends toward their proximal ends as said bearing members are rotated relative to one another, each depressed surface subtending a radial angle of less than 360.degree., and means for rotating said rotatable bearing member to cause the lubricant to flow across and along said depressed surfaces, the flow of lubricant being impeded by the non-depressed portions of said second bearing surface to cause an increase in the lubricant pressure.

  10. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest online library of ... and find other information sources and more resources for researchers and journals. ... Potchefstroom Electronic Law Journal/Potchefstroomse Elektroniese Regsblad.

  11. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest online library of ... and find other information sources and more resources for researchers and journals. ... Nnamdi Azikiwe University Journal of International Law and Jurisprudence.

  12. African Crop Science Journal

    African Journals Online (AJOL)

    AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL ... The African Crop Science Journal, a quarterly publication, publishes original ... interactions, information science, environmental science and soil science.

  13. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Lwati: A Journal of Contemporary Research. Vol 14, No 3 (2017) ... Journal of Business and Administrative Studies. Vol 6, No 2 (2014) ... Vol 11 (2015): African Journal of Educational Studies in Mathematics and Sciences Vol. 11, 2015. African ...

  14. Ghana Medical Journal: Submissions

    African Journals Online (AJOL)

    Journal Home > About the Journal > Ghana Medical Journal: Submissions ... Works publishable under this section include original work of suitable standard. ... interest statement of all types of manuscript should be submitted as a separate file.

  15. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Featured Country: Ghana, Featured Journal: Ghana Medical Journal ... Journal of Business and Administrative Studies; Book Review: Insurance in Ethiopia: ... The Influence of Motivation on Employees' Performance: A Study of Some Selected ...

  16. Nigerian Journal of Ophthalmology

    African Journals Online (AJOL)

    tulyasys

    Nigerian Journal of Ophthalmology / Jan-Jun 2014 / Vol 1 | Issue 1. I. Nigerian Journal of ... Inquiries about advertising should be sent to Medknow. Publications ... reproduce articles/information from this journal, please ... BUSINESS EDITOR.

  17. Rwandan Journal of Education

    African Journals Online (AJOL)

    The Rwandan Journal of Education (Rwandan j. educ) is a scholarly, ... The journal is based at the University of Rwanda – College of Education (former Kigali Institute of Education) and it publishes articles that ... AJOL African Journals Online.

  18. African Journals Online (AJOL)

    African Journals Online (AJOL)

    2013). International Journal of Engineering, Science and Technology. Vol 5, No 3 (2013). International Journal of Engineering, Science and Technology. Vol 30, No 1 (2018). South African Journal of Sports Medicine. Vol 66 (2014). Vulture News.

  19. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest online library of ... AJOL works to change this, so that African-origin research output is available to Africans ... South African Medical Journal ... Global Journal of Pure and Applied Sciences.

  20. African Journals Online (AJOL)

    African Journals Online (AJOL)

    reviewed, African-published scholarly journals. Historically, scholarly information has flowed from North to South and from West to East. It has also been difficult ... Featured Country: Egypt, Arab Rep. Featured Journal: Alexandria Journal of Medicine ...

  1. The International News Journal, Inc. Teacher Resource Manual [and] Student Activities. Second Edition. Exploring the Marketplace Series.

    Science.gov (United States)

    Reinke, Robert; McGuire, Margit; Reinke, Diane Wilcox

    This teacher resource manual and student activities economics education unit provides students with the opportunity to use economic content and related skills as they learn about the U.S. economic system and its relationship to the world economy. The lessons link to economic content and other subject areas traditionally taught in grades 5, 6, and…

  2. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Continuing Medical Education; Establishing financial markets in Ethiopia: the environmental foundation, challenges and opportunities ... Ethiopian Journal of Education and Sciences; Gender Relations in ... South African Actuarial Journal.

  3. Scope and geographical distribution of African medical journals ...

    African Journals Online (AJOL)

    Design: A search was done for relevant African medical journals on electronic databases, library catalogues and internet sites, and a list was compiled of active journals. A survey was conducted via ... Fifty-one journals were published in English, 7 in French and 1 in Portuguese. Most journals were owned by an association ...

  4. Tropical Journal

    African Journals Online (AJOL)

    Results: There were 298 patients with primary PPH, a frequency of 6.6%. Atonic uterus 84 (33.8%), ... Active management of the third stage of labour should be promoted and ... operative vaginal deliveries and when parturients push. 7 before the cervix is fully dilated . ... Nigeria. It is the usual practice in the hospital for the.

  5. Calculation methods for steadily loaded, off-set pivot, tilting pad thrust bearings. (Guide to use of computer program A9235.)

    Science.gov (United States)

    1992-12-01

    ESDU 92035 provides details of a FORTRAN program that implements the calculation method of ESDU 83004. It allows performance analysis of an existing design, or the design of a bearing dimensions, subject to any space constraint, are recommended. The predicted performance includes the lubricant film thickness under load, its temperature and flow rate, the power loss, and the bearing temperature. Recommendations are also made on surface finish. Warning messages are output in the following cases, for each of which possible remedial actions are suggested: drain or pad temperature too high, churning losses too great, film thickness too small, pad number too high, ratio or inner to outer pad radius too large, flow rate too great, lubricant or pad temperature outside usable range. A lubricant database is provided that may be extended or edited. The program applies to Newtonian lubricants in laminar flow. Worked examples illustrate the use of the program.

  6. International Journal of Humanistic Studies: About this journal

    African Journals Online (AJOL)

    International Journal of Humanistic Studies: About this journal. Journal Home > International Journal of Humanistic Studies: About this journal. Log in or Register to get access to full text downloads.

  7. East and Central African Journal of Surgery: About this journal

    African Journals Online (AJOL)

    East and Central African Journal of Surgery: About this journal. Journal Home > East and Central African Journal of Surgery: About this journal. Log in or Register to get access to full text downloads.

  8. Ethiopian Journal of Business and Economics (The): About this journal

    African Journals Online (AJOL)

    Ethiopian Journal of Business and Economics (The): About this journal. Journal Home > Ethiopian Journal of Business and Economics (The): About this journal. Log in or Register to get access to full text downloads.

  9. Zagazig Journal of Occupational Health and Safety: About this journal

    African Journals Online (AJOL)

    Zagazig Journal of Occupational Health and Safety: About this journal. Journal Home > Zagazig Journal of Occupational Health and Safety: About this journal. Log in or Register to get access to full text downloads.

  10. Journal of Technology and Education in Nigeria: About this journal

    African Journals Online (AJOL)

    Journal of Technology and Education in Nigeria: About this journal. Journal Home > Journal of Technology and Education in Nigeria: About this journal. Log in or Register to get access to full text downloads.

  11. Tropical Journal of Pharmaceutical Research: About this journal

    African Journals Online (AJOL)

    Tropical Journal of Pharmaceutical Research: About this journal. Journal Home > Tropical Journal of Pharmaceutical Research: About this journal. Log in or Register to get access to full text downloads.

  12. Nigerian Journal of Pharmaceutical Research: About this journal

    African Journals Online (AJOL)

    Nigerian Journal of Pharmaceutical Research: About this journal. Journal Home > Nigerian Journal of Pharmaceutical Research: About this journal. Log in or Register to get access to full text downloads.

  13. Journal of Computer Science and Its Application: About this journal

    African Journals Online (AJOL)

    Journal of Computer Science and Its Application: About this journal. Journal Home > Journal of Computer Science and Its Application: About this journal. Log in or Register to get access to full text downloads.

  14. Nigeria Journal of Pure and Applied Physics: About this journal

    African Journals Online (AJOL)

    Nigeria Journal of Pure and Applied Physics: About this journal. Journal Home > Nigeria Journal of Pure and Applied Physics: About this journal. Log in or Register to get access to full text downloads.

  15. African Journals Online: Tunisia

    African Journals Online (AJOL)

    speaking countries. Our web site allows a free full text access to approximately 250 articles published since the year 2000. Other websites related to this journal: http://www.journal-storl.net/ · View Journal | Current Issue | Register This Journal is Open ...

  16. Nigerian Journal of Technology

    African Journals Online (AJOL)

    AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL ... Journal Home > Vol 37, No 1 (2018) ... Any paper submitted to the journal should be an original thought-provoking review or appraisal of existing knowledge, ... design and construction or performance evaluation of technological systems.

  17. African Journals Online: Botswana

    African Journals Online (AJOL)

    Botswana Journal of Economics. The Botswana Journal of Economics is a professional journal established for the dissemination of contemporary economic issues–theoretical, methodological, and policy relevant–in the context of both the immediate environment and the wider international community. View Journal | Current ...

  18. African Journals Online: Libya

    African Journals Online (AJOL)

    Libyan Journal of Medicine. The aim of the journal is to publish high quality medical data in the different discipline of medicine. It also aims at rapid publication via the advanced online publication. The journal is directed to clinicians and researcher around the globe. The scope of the journal covers all medical research and ...

  19. Anatomy Journal of Africa

    African Journals Online (AJOL)

    PROMOTING ACCESS TO AFRICAN RESEARCH. AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL · RESOURCES ... Anatomy Journal of Africa is the Official Journal for the Association of Anatomical Societies of Africa. ... Applied anatomy - Clinical anatomy - Morphology, - Embryology ...

  20. African Journals Online (AJOL)

    African Journals Online (AJOL)

    In partnership with hundreds of journals from all over the continent, AJOL works to change this, so that African-origin research output is available to Africans ... Global Journal of Geological Sciences. Vol 16, No 1 (2018). Sokoto Journal of Veterinary Sciences. Vol 7, No 1 (2017). Nigeria Journal of Pure and Applied Physics.

  1. African Journals Online: All Titles

    African Journals Online (AJOL)

    African Journal of Applied Zoology and Environmental Biology View Journal ..... Global Approaches to Extension Practice: A Journal of Agricultural Extension View Journal ... International Journal of Engineering, Science and Technology View Journal ... Journal of Applied Chemistry and Agricultural Research View Journal ...

  2. TNX/HLW Long Shaft Pumps 1995-2000

    International Nuclear Information System (INIS)

    VanPelt, B.

    2002-01-01

    Problems with long shaft pumps are becoming clearer due to increased use, better instrumentation, more analysis, and increased testing activity. The problems are with reliability and not with hydraulic performance. The root cause of reliability problems is usually excessive vibration caused by design. The outlook for satisfactory pumps is improved as understanding of problems increases. Promising developments are emerging such as the tilt pad bearing. Alternative configurations, such as gas filled columns and submerged motor pumps, will require development. Continued development, in general, should be expected due to changing technology and industry changes. This report describes thirteen distinct pump programs starting with leakage of original mixer pumps in the 1980s and ending with the testing of tilt pad bearings now in progress. Eight of the programs occurred from 1996 to 2000. All involve long shaft pumps; all involve testing at TNX; and all involve a problem of some kind. The co mmon technical issue among the activities is vibration and shaft (or rotor) instability due to journal bearings. In every case, excessive shaft vibration is a reasonable and probable explanation for some or all of the problems

  3. From Journalism Studies to Journalism Theory

    OpenAIRE

    Elias Machado

    2005-01-01

    This paper comprises three parts –- 1) recognition of professional practice as a legitimate object of research; 2) development of methodologies that are adjusted to the particularities of the area; and 3) funding of multidisciplinary experiments on applied research. My intention here is to build on the mapping of existing studies to discuss some assumptions and to consolidate journalism as a fi eld of knowledge, based on the distinction between journalism studies and journalism theories.

  4. From Journalism Studies to Journalism Theory

    Directory of Open Access Journals (Sweden)

    Elias Machado

    2005-06-01

    Full Text Available This paper comprises three parts –- 1 recognition of professional practice as a legitimate object of research; 2 development of methodologies that are adjusted to the particularities of the area; and 3 funding of multidisciplinary experiments on applied research. My intention here is to build on the mapping of existing studies to discuss some assumptions and to consolidate journalism as a fi eld of knowledge, based on the distinction between journalism studies and journalism theories.

  5. Controllable Elastohydrodynamics With Examples

    DEFF Research Database (Denmark)

    Santos, Ilmar; Haugaard, Martin Asger

    dynamic properties. The actively controlled bearing surface profiles can be generated by attaching any kind of actuator (hydraulic, electromagnetic or piezoelectric) to deformable bushes. In this paper the elastohydrodynamic model is used to investigate static and dynamic properties of a tilting-pad......Due to the development of high performance rotating machinery, growing attention has been paid to the design of new active (mechatronic) devices able to actively control vibrations and improve its dynamic behavior, i.e. magnetic bearings piezoelectric bearing pushers, hydraulic actuator journal...... journal bearing under hybrid elastohydrodynamics (open loop control) as well as controllable radial oil injection (closed loop control). The bearing dynamic coefficients are heavily influenced by the control parameters and pad compliance. Strong synergy between elastohydrodynamics and active control...

  6. New Egyptian Journal of Microbiology: About this journal

    African Journals Online (AJOL)

    New Egyptian Journal of Microbiology: About this journal. Journal Home > New Egyptian Journal of Microbiology: About this journal. 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 ...

  7. Journal of the Cameroon Academy of Sciences: About this journal

    African Journals Online (AJOL)

    Journal of the Cameroon Academy of Sciences: About this journal. Journal Home > Journal of the Cameroon Academy of Sciences: About this journal. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Journal Home · ABOUT THIS JOURNAL · Advanced Search ...

  8. International Journal of Modern Anthropology: Journal Sponsorship

    African Journals Online (AJOL)

    Therefore this journal could represent a model of volunteering or rather of voluntarism. However, the 'Centre National Universitaire de Documentation Scientifique et Technique' in Tunisia, has just begun to plan to encourage international scientific journals developed in Tunisia. Tunisian Association of Anthropology.

  9. Journal Abstracts

    Directory of Open Access Journals (Sweden)

    Mete Korkut Gülmen

    1996-07-01

    Full Text Available ALKOLİZME BAĞLI ÖLÜMLER VE PARAFİLİLER Co-Morbidity of Alcoholism and the Paraphilias Journal of Forensic Sciences, JFSCA, 1996; 41: 234-9- Alkolizm geniş çeşitlilikteki suçlarla ilişkilidir. Çeşitli yazarlar alkolizmin insest, ırza geçme ve pedofili ile ilişkisi ve rastlanma sıklığını çalıştılar. Bu çalışma alkolizme bağlı ölümler ve seksüel sadizm, fetişizm, insest, pedofili, eksihibisyonizm, transvestizm gibi özgül parafilileri değerlendirmektedir. Tecavüzcüler, tanımsal olarak kesinlikle bir parafilik bozukluk olmamalarına rağmen çalışmaya dahil edildiler. 728 parafilik birey değerlendirildi. Seksüel sadistlerin %50'den fazlası alkolikti. Seksüel sadistlerin alkolizmle olan bağıntıları, transvestiler, tecavüzcüler, pedofililer ve insest saldırganlarına oranla istatiksel olarak belirgin fark gösterdi. Transvestizm relatif olarak en düşük alkolizm oranına sahipti. Yazarlar, parafilisi bulunan bireylerdeki şiddet içeren seksüel davranışları, bu bulgular ve alkolizmin buna neden oluştaki rolü açısından tartışmaktadır. VAGİNAL YAYMALARDA SEMİNAL SIVININ GÖSTERİLMESİNDE MHS-5'İN DEĞERİ. Evaluation of MHS-5 in detecting seminal fluid in vaginal swabs. Keil W, Backus J, Tröger HD. Int J Legal Med, 1996; 108: 186-190. Seksüel saldırı iddiası olan 211 olguda vaginal yaymalar alınarak, seminal vezikül özgül antijen (SVSA, MHS-5-ELISA (SEMA kiti kullanılarak incelendi. Sonuçlar, Phosphatesmo-KM kağıtları kullanılarak uygulanan asid fosfataz reaksiyonu (ACP ve ışık mikros- kopik sperm taramalarından elde edilen değerlerle karşılaştırıldı. Özellikle daha taze olan örneklerde (saklanma süresi 10 gün ila 21/2 ay arasındaydı, MHS-5 yöntemiyle ışık mikroskopik olarak elde edilen sonuçlar arasında yüksek oranda bir ilişki gözlendi. Bir çok MHS-5 pozitif olgu, mikroskopik olarak sper- matozoa saptanmamasına rağmen, aynı zamanda ACP

  10. African Journals Online: African Studies

    African Journals Online (AJOL)

    Items 1 - 50 of 56 ... Africa Development is the quarterly bilingual journal of CODESRIA. .... relationship in the family, workplace, schools and organisations. .... activities, and personalities driving the democracy and development agenda in the region; 4. Conflict .... with preference for the results of African and Africanist studies.

  11. African Journals Online: South Africa

    African Journals Online (AJOL)

    Items 1 - 50 of 96 ... African Journal for Physical Activity and Health Sciences ... confirmation of previous findings, application of new teaching/coaching techniques and research notes. ... Manuscripts are considered for publication in AJPHES based on the .... that affect forage production of rangelands and pastures in Africa.

  12. Botswana Journal of Economics

    African Journals Online (AJOL)

    The Botswana Journal of Economics is a professional journal established for the dissemination of contemporary economic issues–theoretical, methodological, and ... of both the immediate environment and the wider international community.

  13. African Journals Online: Tanzania

    African Journals Online (AJOL)

    Items 1 - 19 of 19 ... The journal publishes original research, case report/case series, letter to the ... Health is a multi-disciplinary journal publishing scientific research work from a ... new ideas and developments in biomedical and health research.

  14. African Journals Online (AJOL)

    African Journals Online (AJOL)

    ... Uganda, Featured Journal: Eastern Africa Journal of Rural Development ... Management of Business Challenges Among Small and Micro Enterprises in Nairobi-Kenya ... Educational leadership and management: theory, policy and practice

  15. The First Journalism School.

    Science.gov (United States)

    Boyle, Diane

    2000-01-01

    Offers a brief look at the life of Marcus Walter Williams: his early life and education, his work life in journalism, and his founding of the first school of Journalism (located at the University of Missouri) in 1906. (SR)

  16. Egyptian Journal of Biotechnology

    African Journals Online (AJOL)

    Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue ... of thermostable alkaline protease under solid state fermentation conditions for ... of toxigenic Pennicium strains and mycotoxins production in different feedstuffs ...

  17. Nigerian Food Journal: Submissions

    African Journals Online (AJOL)

    The Nigerian Food Journal publishes original research articles in all aspects of ... Manuscripts: Manuscripts of original research on all aspects of Food Science ... is not under consideration in part or in full for publication in any other Journal.

  18. Nigerian Health Journal

    African Journals Online (AJOL)

    reviewed, English language, medical and health science journal that is published quarterly by the Nigerian Medical Association, Rivers state branch, Nigeria. The journal publishes any contribution that advances medical science or practice ...

  19. Nigerian Food Journal

    African Journals Online (AJOL)

    The Nigerian Food Journal (NIFOJ) is a journal of international standard established ... of interdisciplinary knowledge on all aspects of food science and technology. ... Optimization of Some Physico-Chemical Properties of Predigested Soymilk ...

  20. Journal of applied mathematics

    National Research Council Canada - National Science Library

    2001-01-01

    "[The] Journal of Applied Mathematics is a refereed journal devoted to the publication of original research papers and review articles in all areas of applied, computational, and industrial mathematics...

  1. Journal of Aquatic Sciences

    African Journals Online (AJOL)

    The Journal of Aquatic Sciences publishes articles on problems and issues in Aquatic Sciences from all ... The journal accepts for publication manuscripts of very high international standard containing reports of original scientific research.

  2. [Fourcroy and pharmaceutical journals].

    Science.gov (United States)

    Bonnemain, Bruno

    2011-04-01

    Cadet de Gassicourt wrote a brief Eloge of Fourcroy in January 1810 as he died in December of 1809. Fourcroy had a major role concerning the new ideas on the place of pharmacy at the beginning of the 19th century. Fourcroy has had a key influence for the start of several pharmaceutical journals that wanted to emphasize the link between the new chemistry and pharmacy. None of these journals created with him will survive and one has to wait for 1909 to see the creation, without Fourcroy, of a new pharmaceutical journal, the "Journal de Pharmacie" that will become "Journal de Pharmacie et des Sciences accessoires", then "Journal de Pharmacie et de Chimie", before taking the name of"Annales Pharmaceutiques Françaises", the present official journal of the French Academy of Pharmacy. In spite of the essential role of Fourcroy at the start of pharmaceutical journals, Cadet did not even mention it in his Eloge of 1810.

  3. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Mizan Law Review; The Basis of Distinction Between Qualitative and Quantitative Research in Social Science: Reflection on Ontological, Epistemological and Methodological Perspectives Ethiopian Journal of ... South African Journal of Education; An approach to the neck mass ... Madagascar Conservation & Development.

  4. African Journals Online: Health

    African Journals Online (AJOL)

    Items 51 - 100 of 167 ... Ethiopian Journal of Health Sciences is a general health science journal .... Biochemistry, Dentistry, Genetics, Immunology, Internal Medicine, ... Faculty of Medical Sciences, Faculty of Health Sciences and Technology and ...

  5. African Journals Online (AJOL)

    African Journals Online (AJOL)

    ... Science: Reflection on Ontological, Epistemological and Methodological Perspectives Ethiopian Journal of Education and Sciences; The Tuskegee Syphilis Study: Some Ethical Reflections Thought and Practice; Educational leadership and management: theory, policy and practice. South African Journal of Education ...

  6. Ethiopian Veterinary Journal

    African Journals Online (AJOL)

    reviewed journal intended to promote animal health and production of national and regional/international importance. The journal publishes review articles, original research articles, short communication as well as technical notes in English.

  7. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest and pre-eminent ... Continuing Medical Education; The competitive advantage of nations: is Porter's ... Ethiopian Journal of Education and Sciences; Advertising practice in Nigeria: ...

  8. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest and pre-eminent collection ... Continuing Medical Education; The competitive advantage of nations: is Porter's ... AFRREV IJAH: An International Journal of Arts and Humanities; Advertising ...

  9. Journalism Curiosity and Story Telling Frame

    DEFF Research Database (Denmark)

    Grunwald, Ebbe; Rupar, Verica

    2009-01-01

    This comparative study of journalism practices in Australia and Denmark explores the interplay between two concepts relevant for journalism's meaning-making activity: a curiosity seen as an action meant to close an information gap, and a story telling frame seen as a form of structuring information...... the epistemological and organisational dimension of frames relates to the process of  meaning-making. We suggest refining the concept of frame in journalism studies by making a distinction between a frame (an epistemological category) and an angle (a textual organisation category). Our investigation shows...... that this distinction better serves the analysis and understanding of the mechanisms behind journalism in comparative contexts. Udgivelsesdato: December...

  10. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences; Volume 124; Issue 3. Activated anilide in heterocyclic synthesis: Synthesis of new hydrazo, dihydropyridazine, tetrahydropyridine, dihydropyridine and pyranopyridine derivatives. Ibrahim Saad Abdel Hafiz Mahmoud Mohamed Mahfouz Ramiz Mohamed Ahmed Elian. Volume ...

  11. Journal of Genetics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Genetics; Volume 95; Issue 4. Adenosine monophosphate-activated protein kinase from the mud crab, Scylla paramamosain: cDNA cloning and profiles under cold stress. CHENCUI HUANG KUN YU HUIYANG HUANG HAIHUI YE. RESEARCH ARTICLE Volume 95 Issue 4 December 2016 pp ...

  12. Public Journalism Challenges to Curriculum and Instruction.

    Science.gov (United States)

    Haas, Tanni

    2000-01-01

    Considers some challenges of teaching public journalism. Discusses how journalism educators can help students prepare for a career in the service of public life by teaching them how to actively involve citizens in the journalistic processes of gathering information, writing stories, and evaluating performance. Offers teaching applications and…

  13. African Journals Online: Ethiopia

    African Journals Online (AJOL)

    Items 1 - 30 of 30 ... African Research Review (AFRREV) is a Peer Reviewed ... AFRREV IJAH: An International Journal of Arts and Humanities ... in the world; the Journal also enhances exchange of ideas among scientists engaged in research ... This journal content is now open access and licensed under Creative Commons ...

  14. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Historically, scholarly information has flowed from North to South and from West to East. ... or keywords,; and find other information sources and more resources for researchers and journals. ... Nnamdi Azikiwe University Journal of International Law and Jurisprudence ... Lagos Journal of Library and Information Science.

  15. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest and pre-eminent collection of peer-reviewed, African-published scholarly journals. Historically ... African Research Review; The Roles of Information Communication Technologies in Education: Review Article with Emphasis to the Computer and Internet Ethiopian Journal ...

  16. Interactive Graphic Journalism

    NARCIS (Netherlands)

    Schlichting, Laura

    2016-01-01

    textabstractThis paper examines graphic journalism (GJ) in a transmedial context, and argues that transmedial graphic journalism (TMGJ) is an important and fruitful new form of visual storytelling, that will re-invigorate the field of journalism, as it steadily tests out and plays with new media,

  17. Global Journal of Humanities

    African Journals Online (AJOL)

    Journal Homepage Image. Global Journal of Humanities is aimed at promoting reasearch in all areas of Humanities including philosophy, languages, linguistics, literature, history, fine/applied arts, theater arts, architecture, etc. Visit the Global Journal Series website here: http://www.globaljournalseries.com/ ...

  18. African Journals Online: Zambia

    African Journals Online (AJOL)

    The Medical Journal of Zambia is a peer-reviewed quarterly journal intended for the publication of papers from all specialities of medicine (Internal Medicine, Surgery, Paediatrics and Obstetrics & Gynaecology) and their subspecialties, basic sciences, public health, social medicine and medical politics. The journal also ...

  19. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Historically, scholarly information has flowed from North to South and from West to East. It has also been difficult for African researchers to access the work of other African academics. In partnership with hundreds of journals from all ... Featured Country: Nigeria, Featured Journal: Nigeria Journal of Business Administration ...

  20. African Journals Online: Eritrea

    African Journals Online (AJOL)

    Journal of the Eritrean Medical Association. The journal aims to publish and disseminate scientifically rigorous health information of Eritrean and international significance that enables policy makers, researchers, and practitioners to be more effective in the improvement of the health of Eritrean people. View Journal | Current ...

  1. African Journals Online: Guernsey

    African Journals Online (AJOL)

    African Journals Online: Guernsey. Home > African Journals Online: Guernsey. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access ...

  2. African Journals Online: Grenada

    African Journals Online (AJOL)

    African Journals Online: Grenada. Home > African Journals Online: Grenada. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access ...

  3. African Journals Online: India

    African Journals Online (AJOL)

    African Journals Online: India. Home > African Journals Online: India. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access. Afghanistan ...

  4. African Journals Online: Barbados

    African Journals Online (AJOL)

    African Journals Online: Barbados. Home > African Journals Online: Barbados. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access ...

  5. African Journals Online: Malta

    African Journals Online (AJOL)

    African Journals Online: Malta. Home > African Journals Online: Malta. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access. Afghanistan ...

  6. African Journals Online: Bahamas

    African Journals Online (AJOL)

    African Journals Online: Bahamas. Home > African Journals Online: Bahamas. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access ...

  7. African Journals Online: Liechtenstein

    African Journals Online (AJOL)

    African Journals Online: Liechtenstein. Home > African Journals Online: Liechtenstein. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access ...

  8. African Journals Online: Vanuatu

    African Journals Online (AJOL)

    African Journals Online: Vanuatu. Home > African Journals Online: Vanuatu. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access ...

  9. African Journals Online: Malawi

    African Journals Online (AJOL)

    Journal of Development and Communication Studies. The Journal of Development and Communications Studies (JDCS), published online and in print by Development Media Consulting, is a biannual academic, peer reviewed journal, ISSN 2305-7432, dedicated to research exploring linkages between communication and ...

  10. African Journals Online: History

    African Journals Online (AJOL)

    Lagos Historical Review. The Lagos Historical Review is an international and interdisciplinary journal publishing papers with a historical focus. The journal generates and participates in debates to advance the discipline of history and promote its relevance to development. The journal aims to serve the academic community ...

  11. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest and pre-eminent collection of peer-reviewed, African-published scholarly journals. Historically, scholarly information ... Ethiopian Journal of Education and Sciences; Advertising practice in Nigeria: Development, new trends, challenges and prospects. EJOTMAS: Ekpoma ...

  12. Malawi Medical Journal: Submissions

    African Journals Online (AJOL)

    Privacy Statement. The names and email addresses entered in this journal site will be used exclusively for the stated purposes of this journal and will not be made available for any other purpose or to any other party. ISSN: 1995-7262. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  13. Nigerian Health Journal: Submissions

    African Journals Online (AJOL)

    ... outlined in the Author Guidelines, which is found in About the Journal. If submitting to a peer-reviewed section of the journal, the instructions inEnsuring a Blind Review have been followed. In submitting manuscripts to The Nigerian Health Journal (TNHJ), the authors accept that the submitted articles are not plagiarized.

  14. African Journals Online: Aruba

    African Journals Online (AJOL)

    African Journals Online: Aruba. Home > African Journals Online: Aruba. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access. Afghanistan ...

  15. African Journals Online: Kazakhstan

    African Journals Online (AJOL)

    African Journals Online: Kazakhstan. Home > African Journals Online: Kazakhstan. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access ...

  16. African Journals Online: Switzerland

    African Journals Online (AJOL)

    African Journals Online: Switzerland. Home > African Journals Online: Switzerland. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access ...

  17. Journal of Applied Biosciences

    African Journals Online (AJOL)

    The Journal of Applied Biosciences provides a forum for scholars and practitioners in all spheres of biological sciences to publish their research findings or theoretical concepts and ideas of a scientific nature. Other websites related to this journal: http://m.elewa.org/Journals/about-jab/ ...

  18. African Journals Online (AJOL)

    African Journals Online (AJOL)

    In partnership with hundreds of journals from all over the continent, AJOL works to change this, so that African-origin research output is available to Africans and to the rest of the world. AJOL is a Non-Profit Organisation ... Featured Country: Nigeria, Featured Journal: Journal of Applied Science, Engineering and Technology ...

  19. African Journal of Rheumatology

    African Journals Online (AJOL)

    The journal aims to publish papers on basic and clinical research in rheumatology and be a vessel of sharing knowledge across the globe. Original research work, reviews, case reports and other relevant scientific work will be published in the journal. The readers of the journal are mainly practicing rheumatologists, ...

  20. Open Veterinary Journal

    African Journals Online (AJOL)

    Open Veterinary Journal is a peer reviewed international open access online and printed journal that publishes high-quality original research articles, reviews, short communications and case reports dedicated to all aspects of veterinary sciences and its related subjects. Other websites associated with this journal: ...

  1. African Journals Online: Andorra

    African Journals Online (AJOL)

    African Journals Online: Andorra. Home > African Journals Online: Andorra. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access ...

  2. African Journals Online: Ireland

    African Journals Online (AJOL)

    African Journals Online: Ireland. Home > African Journals Online: Ireland. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access. Afghanistan ...

  3. African Journals Online: Nigeria

    African Journals Online (AJOL)

    Items 1 - 50 of 221 ... African Journal of Clinical and Experimental Microbiology ... The African Journal of Drug & Alcohol Studies is an international scientific journal ... d) Critical or analytical reviews in the area of theory, policy, or research in Dentistry. e) Reviews of recently published books or group of books which would be of ...

  4. African Journals Online: Health

    African Journals Online (AJOL)

    Items 1 - 50 of 167 ... African Journal of AIDS Research (AJAR) is a peer-reviewed ... The African Journal of Drug & Alcohol Studies is an international ... The Journal has been produced through the efforts of Kenya Medical Research Institute (KEMRI) and the African .... in basic and clinical medical sciences as well as dentistry.

  5. African Journals Online: Belgium

    African Journals Online (AJOL)

    African Journals Online: Belgium. Home > African Journals Online: Belgium. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free to read Titles This Journal is Open Access ...

  6. African Journals Online (AJOL)

    African Journals Online (AJOL)

    AFRREV IJAH: An International Journal of Arts and Humanities; Educational leadership and management: theory, policy and practice. South African Journal of Education; Book Review: Insurance in Ethiopia: Historical Development, Present Status and Future Challenges Journal of Business and Administrative Studies ...

  7. African Journals Online (AJOL)

    African Journals Online (AJOL)

    In partnership with hundreds of journals from all over the continent, AJOL works to change this, so that African-origin research output is available to Africans and to ... Ergonomics SA. Vol 9, No 1 (2017). Inkanyiso: Journal of Humanities and Social Sciences. Vol 14, No 5 (2017). Journal of Pharmaceutical and Allied Sciences.

  8. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest and pre-eminent collection of peer-reviewed, African-published scholarly journals. Historically, scholarly information has flowed ... Thought and Practice; Advertising practice in Nigeria: Development, new trends, challenges and prospects. EJOTMAS: Ekpoma Journal of ...

  9. African Journals Online (AJOL)

    African Journals Online (AJOL)

    South African Journal for Research in Sport, Physical Education and Recreation. Vol 17, No 4 (2017). African Health Sciences. Vol 6, No 1 (2015). Nigeria Journal of Pure and Applied Physics. Vol 5, No 2 (2017). Journal of Student Affairs in Africa. Vol 14, No 1 (2017). Annals of African Surgery. Vol 63, No 7-9 (2018).

  10. African Journals Online: Rwanda

    African Journals Online (AJOL)

    ... Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Puerto Rico ... Rwanda Journal, Series C: Mathematical Sciences, Engineering and Technology ... Rwanda Journal, Series F: Medicine and Health Sciences ... The Rwanda Journal of Health Sciences, a publication of Kigali Health Institute, ...

  11. African Journals Online (AJOL)

    African Journals Online (AJOL)

    West African Journal of Applied Ecology. Vol 6, No 2 (2017). Filosofia Theoretica: Journal of African Philosophy, Culture and Religions. 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 ...

  12. Journal for Juridical Science

    African Journals Online (AJOL)

    The Journal for Juridical Science is an accredited national professional journal which publishes original research articles in law in Afrikaans and English. Multi and interdisciplinary contributions which bridge the gap between legal scholarship and other pertinent academic disciplines, are welcomed. The Journal for Juridical ...

  13. African Journals Online (AJOL)

    African Journals Online (AJOL)

    In partnership with hundreds of journals from all over the continent, AJOL works to change this, so that African-origin research output is available to Africans and to ... African Journal of AIDS Research. Vol 35, No 2 (2017). Zimbabwe Veterinary Journal. Vol 34, No 1 (2018). Eastern Africa Social Science Research Review.

  14. Tanzania Medical Journal: Submissions

    African Journals Online (AJOL)

    The Tanzania Medical Journal is a multi – disciplinary journal published two times a year in March - June and September – December. ... To achieve its objectives the journal invites papers on original scientific research, short communications, case reports and letters to the editor, in any branch of medical science. Original ...

  15. Neophilia Ranking of Scientific Journals.

    Science.gov (United States)

    Packalen, Mikko; Bhattacharya, Jay

    2017-01-01

    The ranking of scientific journals is important because of the signal it sends to scientists about what is considered most vital for scientific progress. Existing ranking systems focus on measuring the influence of a scientific paper (citations)-these rankings do not reward journals for publishing innovative work that builds on new ideas. We propose an alternative ranking based on the proclivity of journals to publish papers that build on new ideas, and we implement this ranking via a text-based analysis of all published biomedical papers dating back to 1946. In addition, we compare our neophilia ranking to citation-based (impact factor) rankings; this comparison shows that the two ranking approaches are distinct. Prior theoretical work suggests an active role for our neophilia index in science policy. Absent an explicit incentive to pursue novel science, scientists underinvest in innovative work because of a coordination problem: for work on a new idea to flourish, many scientists must decide to adopt it in their work. Rankings that are based purely on influence thus do not provide sufficient incentives for publishing innovative work. By contrast, adoption of the neophilia index as part of journal-ranking procedures by funding agencies and university administrators would provide an explicit incentive for journals to publish innovative work and thus help solve the coordination problem by increasing scientists' incentives to pursue innovative work.

  16. Overview of journal metrics

    Directory of Open Access Journals (Sweden)

    Kihong Kim

    2018-02-01

    Full Text Available Various kinds of metrics used for the quantitative evaluation of scholarly journals are reviewed. The impact factor and related metrics including the immediacy index and the aggregate impact factor, which are provided by the Journal Citation Reports, are explained in detail. The Eigenfactor score and the article influence score are also reviewed. In addition, journal metrics such as CiteScore, Source Normalized Impact per Paper, SCImago Journal Rank, h-index, and g-index are discussed. Limitations and problems that these metrics have are pointed out. We should be cautious to rely on those quantitative measures too much when we evaluate journals or researchers.

  17. Journal of | Journals | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year meeting of the Academy will be held from ...

  18. MUSIC RADIO-JOURNALISM

    Directory of Open Access Journals (Sweden)

    Dubovtceva Ludmila I.

    2014-04-01

    Full Text Available The article is based on years of practical experience, the author highlights the main radio genres in which music correspondent, music reviewer, music commentator, and music leading and a disc jockey work. Theoretical principles of their creative activities are analyzed in common journalistic genres, such as interview, reportage, talk show, live broadcast, radiofilm, as well as specialized genres like concert on demand and music competition. Journalist’ speech is seen as a logical element, the incoming with music in art-structural relationships. However, it does not become the predominant sound layer and aims to harmonious correlation or local penetration into music opus. In addition, important links in music journalism are defined the auxiliary "offscreen" editor's job and keeping the original sound archive. The author cites a number of own work examples on the air.

  19. Citizen Journalism & Public Interfaces

    DEFF Research Database (Denmark)

    Brynskov, Martin; Strøbech, Kristian; Bang, Jørgen

    2011-01-01

    of views or plain information dissemination. Form the media institution’s point of view the goal was to create a platform for hyper local journalism as a source for journalistic coverage in commercial media. The group investigating civic communication within the Digital Urban Living project...... followed the upstart of Dinby.dk in 2008 and has returned to the experiment in 2010. Our main interest is to explore the condition in which it is possible to create hyper local citizens produced digital content. And, furthermore, to understand which incitements are needed to make local actors or groups act...... as digital providers of their own activities. In the paper we present our findings and reflect them in relation to the design of the web-portal and the profile of the users. Finally we discuss the further perspectives of this form of user/citizens involvement in public communication....

  20. Scientific journal cancellations

    CERN Multimedia

    The Library

    2001-01-01

    Earlier this year the Scientific Information Policy Board (SIPB) requested the Library and the Working Group for Acquisitions to revise the current printed journal collection in order to cancel those titles that are less required. Savings could then be used for the development of other collections and particularly electronic resources needed to support CERN current research activities. A list of proposed cancellations was drawn and posted on the Library web pages: http://library.cern.ch/library_general/cancel.html The SIPB invites every one to check if any of the titles are of importance to their work, in which case you are invited to inform the Library before the 25th of September by sending an e-mail to: eliane.chaney@cern.ch Titles not reconsidered by the users will be cancelled by the end of the year. Thank you, The Library

  1. Nigerian Journal of General Practice

    African Journals Online (AJOL)

    Nigerian Journal of General Practice. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 9, No 1 (2011) >. Log in or Register to get access to full text downloads.

  2. Journal of Ethiopian Medical Practice

    African Journals Online (AJOL)

    Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives. Journal Homepage Image. A biannual scientific journal published by the Ethiopian Society of General Medical Practice ...

  3. African Journal of Aquatic Science

    African Journals Online (AJOL)

    AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING ... The African Journal of Aquatic Science is an international journal devoted to the ... papers and short articles in all the aquatic science fields including limnology, ...

  4. African Journal of Neurological Sciences

    African Journals Online (AJOL)

    African Journal of Neurological Sciences. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 28, No 1 (2009) >. Log in or Register to get access to full text downloads.

  5. African Journal of Neurological Sciences

    African Journals Online (AJOL)

    African Journal of Neurological Sciences. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 31, No 2 (2012) >. Log in or Register to get access to full text downloads.

  6. African Journal of Neurological Sciences

    African Journals Online (AJOL)

    African Journal of Neurological Sciences. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 29, No 2 (2010) >. Log in or Register to get access to full text downloads.

  7. African Journal of Neurological Sciences

    African Journals Online (AJOL)

    African Journal of Neurological Sciences. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 31, No 1 (2012) >. Log in or Register to get access to full text downloads.

  8. African Journal of Neurological Sciences

    African Journals Online (AJOL)

    African Journal of Neurological Sciences. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 30, No 1 (2011) >. Log in or Register to get access to full text downloads.

  9. Tropical Journal of Pharmaceutical Research

    African Journals Online (AJOL)

    Tropical Journal of Pharmaceutical Research. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 12, No 6 (2013) >. Log in or Register to get access to full text downloads.

  10. Mgbakoigba: Journal of African Studies

    African Journals Online (AJOL)

    Mgbakoigba: Journal of African Studies. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 5, No 2 (2016) >. Log in or Register to get access to full text downloads.

  11. Mgbakoigba: Journal of African Studies

    African Journals Online (AJOL)

    Mgbakoigba: Journal of African Studies. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 2 (2013) >. Log in or Register to get access to full text downloads.

  12. Mgbakoigba: Journal of African Studies

    African Journals Online (AJOL)

    Mgbakoigba: Journal of African Studies. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 6, No 1 (2016) >. Log in or Register to get access to full text downloads.

  13. Mgbakoigba: Journal of African Studies

    African Journals Online (AJOL)

    Mgbakoigba: Journal of African Studies. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 1 (2012) >. Log in or Register to get access to full text downloads.

  14. Beyond journalism: Theorizing the transformation of journalism.

    Science.gov (United States)

    Deuze, Mark; Witschge, Tamara

    2018-02-01

    Journalism has enjoyed a rich and relatively stable history of professionalization. Scholars coming from a variety of disciplines have theorized this history, forming a consistent body of knowledge codified in national and international handbooks and canonical readers. However, recent work and analysis suggest that the supposed core of journalism and the assumed consistency of the inner workings of news organizations are problematic starting points for journalism studies. In this article, we challenge the consensual (self-)presentation of journalism - in terms of its occupational ideology, its professional culture, and its sedimentation in routines and organizational structures (cf. the newsroom) in the context of its reconfiguration as a post-industrial , entrepreneurial , and atypical way of working and of being at work. We outline a way beyond individualist or institutional approaches to do justice to the current complex transformation of the profession. We propose a framework to bring together these approaches in a dialectic attempt to move through and beyond journalism as it has traditionally been conceptualized and practiced, allowing for a broader definition and understanding of the myriad of practices that make up journalism.

  15. How to Rank Journals.

    Science.gov (United States)

    Bradshaw, Corey J A; Brook, Barry W

    2016-01-01

    There are now many methods available to assess the relative citation performance of peer-reviewed journals. Regardless of their individual faults and advantages, citation-based metrics are used by researchers to maximize the citation potential of their articles, and by employers to rank academic track records. The absolute value of any particular index is arguably meaningless unless compared to other journals, and different metrics result in divergent rankings. To provide a simple yet more objective way to rank journals within and among disciplines, we developed a κ-resampled composite journal rank incorporating five popular citation indices: Impact Factor, Immediacy Index, Source-Normalized Impact Per Paper, SCImago Journal Rank and Google 5-year h-index; this approach provides an index of relative rank uncertainty. We applied the approach to six sample sets of scientific journals from Ecology (n = 100 journals), Medicine (n = 100), Multidisciplinary (n = 50); Ecology + Multidisciplinary (n = 25), Obstetrics & Gynaecology (n = 25) and Marine Biology & Fisheries (n = 25). We then cross-compared the κ-resampled ranking for the Ecology + Multidisciplinary journal set to the results of a survey of 188 publishing ecologists who were asked to rank the same journals, and found a 0.68-0.84 Spearman's ρ correlation between the two rankings datasets. Our composite index approach therefore approximates relative journal reputation, at least for that discipline. Agglomerative and divisive clustering and multi-dimensional scaling techniques applied to the Ecology + Multidisciplinary journal set identified specific clusters of similarly ranked journals, with only Nature & Science separating out from the others. When comparing a selection of journals within or among disciplines, we recommend collecting multiple citation-based metrics for a sample of relevant and realistic journals to calculate the composite rankings and their relative uncertainty windows.

  16. ORiON: Journal Sponsorship

    African Journals Online (AJOL)

    ORiON: Journal Sponsorship. Journal Home > About the Journal > ORiON: Journal Sponsorship. 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. Publisher. ORSSA. Sponsors.

  17. East African Journal of Sciences: Submissions

    African Journals Online (AJOL)

    Aims The East African Journal of Sciences (EAJS) publishes original scientific ... of ideas among scientists engaged in research and development activities; and ... font size 12, Times New Roman), including tables, figures and illustrations.

  18. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    In the same brain areas, VBM results also showed reduced grey and white matter volumes. ... alterations and disturbed functional brain activation during empathy task in persons affected with schizophrenia. ... Journal of Biosciences | News ...

  19. Does Journaling Encourage Healthier Choices? Analyzing Healthy Eating Behaviors of Food Journalers

    OpenAIRE

    Achananuparp, Palakorn; Lim, Ee-Peng; Abhishek, Vibhanshu

    2018-01-01

    Past research has shown the benefits of food journaling in promoting mindful eating and healthier food choices. However, the links between journaling and healthy eating have not been thoroughly examined. Beyond caloric restriction, do journalers consistently and sufficiently consume healthful diets? How different are their eating habits compared to those of average consumers who tend to be less conscious about health? In this study, we analyze the healthy eating behaviors of active food journ...

  20. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Mikki V Vinodu. Articles written in Journal of Chemical Sciences. Volume 113 Issue 1 February 2001 pp 1-9 Inorganic and Analytical. Peroxidase-like catalytic activities of ionic metalloporphyrins supported on functionalised polystyrene surface · Mikki V Vinodu M ...

  1. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Philippe Bertrand. Articles written in Journal of Chemical Sciences. Volume 121 Issue 4 July 2009 pp 471-479. Biological activities of substituted trichostatic acid derivatives · Cédric Charrier Joëlle Roche Jean-Pierre Gesson Philippe Bertrand · More Details Abstract Fulltext ...

  2. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. PRADEEP KUMAR BUDDE. Articles written in Journal of Chemical Sciences. Volume 130 Issue 3 March 2018 pp 27. Non-oxidative methane dehydroaromatization reaction over highly active α-MoC1−x ZSM-5 derived from pretreatment · PRADEEP KUMAR BUDDE ARVIND ...

  3. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. A Sakthivel. Articles written in Journal of Chemical Sciences. Volume 119 Issue 4 July 2007 pp 303-310. Synthesis, spectral characterization of Schiff base transition metal complexes: DNA cleavage and antimicrobial activity studies · N Raman J Dhaveethu Raja A Sakthivel.

  4. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Rajesh Kumar. Articles written in Journal of Chemical Sciences. Volume 121 Issue 4 July 2009 pp 497-502. Synthesis, antimicrobial and antifungal activities of novel 1H-1,4-diazepines containing pyrazolopyrimidinone moiety · Rajesh Kumar Yogesh Chandra Joshi.

  5. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. BIPUL KUMAR. Articles written in Journal of Chemical Sciences. Volume 129 Issue 2 February 2017 pp 211-222 Regular Article. Synthesis and antibacterial activity screening of quaternary ammonium derivatives of triazolyl pyranochromenones · PREETI YADAV BIPUL ...

  6. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Hai-Liang Zhu. Articles written in Journal of Chemical Sciences. Volume 121 Issue 4 July 2009 pp 463-470. Synthesis, antimicrobial activity of lamotrigine and its ammonium derivatives · Yong Qian Peng-Cheng Lv Lei Shi Rui-Qin Fang Zhong-Cheng Song Hai-Liang Zhu.

  7. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Pramana – Journal of Physics. K S Ojo. Articles written in Pramana – Journal of Physics. Volume 80 Issue 5 May 2013 pp 825-835. Comparison of backstepping and modified active control in projective synchronization of chaos in an extended Bonhöffer–van der Pol oscillator · K S Ojo A N Njah S T Ogunjo.

  8. Journal of Astrophysics and Astronomy | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Astrophysics and Astronomy. Annie Baglin. Articles written in Journal of Astrophysics and Astronomy. Volume 21 Issue 3-4 September-December 2000 pp 319-322 Session VII – Magnetoconvection & Stellar Activity. The Space Stellar Photometry Mission COROT: Asteroseismology and Search ...

  9. Journal of Astrophysics and Astronomy | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Astrophysics and Astronomy. Corot team. Articles written in Journal of Astrophysics and Astronomy. Volume 21 Issue 3-4 September-December 2000 pp 319-322 Session VII – Magnetoconvection & Stellar Activity. The Space Stellar Photometry Mission COROT: Asteroseismology and Search for ...

  10. Journal of Astrophysics and Astronomy | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    2016-01-27

    Jan 27, 2016 ... Home; Journals; Journal of Astrophysics and Astronomy. Stefano Ciroi. Articles written in Journal of Astrophysics and Astronomy. Volume 36 Issue 4 December 2015 pp 447-455 Review. Optical Counterparts of Undetermined Type -Ray Active Galactic Nuclei with Blazar-Like Spectral Energy Distributions.

  11. Journal of Astrophysics and Astronomy | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Astrophysics and Astronomy. Gerard Vauclair. Articles written in Journal of Astrophysics and Astronomy. Volume 21 Issue 3-4 September-December 2000 pp 319-322 Session VII – Magnetoconvection & Stellar Activity. The Space Stellar Photometry Mission COROT: Asteroseismology and Search ...

  12. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. MARZIEH ABBASI. Articles written in Journal of Chemical Sciences. Volume 129 Issue 8 August 2017 pp 1257-1266 REGULAR ARTICLE. Synthesis, characterization and in vitro antibacterial activity of novel phthalazine sulfonamide derivatives · MARZIEH ABBASI SEYED ...

  13. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Aruna Bhatia. Articles written in Journal of Chemical Sciences. Volume 123 Issue 4 July 2011 pp 443-451. Synthesis of 4-aryl-4,5-dihydro-1-indeno[1,2-]pyrimidines by Biginelli condensation and their antibacterial activities · Ramandeep Kaur Monika Bansal Balbir Kaur ...

  14. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Sayed Alam. Articles written in Journal of Chemical Sciences. Volume 116 Issue 1 January 2004 pp 29-32 Full Papers. Synthesis and studies of antibacterial activity of pongaglabol · Sayed Alam Zakaria Sarkar Azizul Islam · More Details Abstract Fulltext PDF. Pongaglabol ...

  15. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Shashank Singh. Articles written in Journal of Chemical Sciences. Volume 127 Issue 3 March 2015 pp 413-423 Regular Articles. Iodobenzene diacetate-mediated isomerization of pyrazolyl chalcones and their cytotoxicity and anti-microbial activity · Mahavir Parshad Vikas ...

  16. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Sujit Roy. Articles written in Journal of Chemical Sciences. Volume 114 Issue 4 August 2002 pp 277-283. Transition metal catalysed Grignard-like allylic activation across tetragonal tin(II) oxide · Pradipta Sinha Moloy Banerjee Abhijit Kundu Sujit Roy · More Details Abstract ...

  17. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Vijayamohanan K Pillai. Articles written in Journal of Chemical Sciences. Volume 121 Issue 5 September 2009 pp 719-725. Imaging hydrogen oxidation activity of catalyst-coated perfluoro sulfonic acid-polymer electrolyte membranes using Scanning Electrochemical ...

  18. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. IBRAHIM KANI. Articles written in Journal of Chemical Sciences. Volume 128 Issue 4 April 2016 pp 523-536 Regular Articles. Mn(II) complexes with bipyridine, phenanthroline and benzoic acid: Biological and catalase-like activity · Ibrahim Kani Özlem Atlier Kiymet Güven.

  19. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. P A Nagarjun. Articles written in Journal of Chemical Sciences. Volume 119 Issue 1 January 2007 pp 29-34. Study of the spectroscopic characteristics of methyl (ligand) cobaloximes and their antibacterial activity · N Navaneetha P A Nagarjun S Satyanarayana · More Details ...

  20. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Cédric Charrier. Articles written in Journal of Chemical Sciences. Volume 121 Issue 4 July 2009 pp 471-479. Biological activities of substituted trichostatic acid derivatives · Cédric Charrier Joëlle Roche Jean-Pierre Gesson Philippe Bertrand · More Details Abstract Fulltext ...

  1. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Vilas N Mahire. Articles written in Journal of Chemical Sciences. Volume 128 Issue 4 April 2016 pp 671-679 Regular Articles. Silane@TiO2 nanoparticles-driven expeditious synthesis of biologically active benzo[4,5]imidazo[1,2-a]chromeno[4,3-d]pyrimidin-6-one scaffolds: A ...

  2. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. Yuanming Zhang. Articles written in Journal of Chemical Sciences. Volume 118 Issue 3 May 2006 pp 281-285. Temperature effects on surface activity and application in oxidation of toluene derivatives of CTAB-SDS with KMnO4 · Yu Tang Biying Du Jun Yang Yuanming ...

  3. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. T SHANMUGANATHAN. Articles written in Journal of Chemical Sciences. Volume 129 Issue 1 January 2017 pp 117-130 Regular Article. Synthesis, in vitro anti-inflammatory activity and molecular docking studies of novel 4,5-diarylthiophene-2-carboxamide derivatives.

  4. Teaching the Anatomy of a Scientific Journal Article

    Science.gov (United States)

    Schinske, Jeffrey N.; Clayman, Karen; Busch, Allison K.; Tanner, Kimberly D.

    2008-01-01

    To promote inquiry-based learning, the authors integrate the anatomy of a scientific journal article into their secondary science curriculum. In this article, they present three classroom activities used to teach students about the function and format of scientific journal articles. The first focuses on journal article figures, the second on…

  5. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences. L K ALEXANDER. Articles written in Journal of Chemical Sciences. Volume 129 Issue 1 January 2017 pp 95-102 Regular Article. Photocatalytic Activity of Graphene/ZnO Nanocomposite Fabricated by Two-step Electrochemical Route · A R NANAKKAL L K ALEXANDER.

  6. Current Institutional Trends in Research Productivity in Counseling Psychology Journals

    Science.gov (United States)

    Diegelman, Nathan M.; Uffelman, Rachel A.; Wagner, Kimberly S.; Diegelman, Sally A.

    2005-01-01

    This study investigated institutional publication activity in counseling psychology journals for the 10-year period from 1993 to 2002. Four journals reported by counseling psychology training directors as prime publication outlets for the field of counseling psychology were used: "Journal of Counseling Psychology," "The Counseling Psychologist,"…

  7. Ranking economic history journals

    DEFF Research Database (Denmark)

    Di Vaio, Gianfranco; Weisdorf, Jacob Louis

    2010-01-01

    This study ranks-for the first time-12 international academic journals that have economic history as their main topic. The ranking is based on data collected for the year 2007. Journals are ranked using standard citation analysis where we adjust for age, size and self-citation of journals. We also...... compare the leading economic history journals with the leading journals in economics in order to measure the influence on economics of economic history, and vice versa. With a few exceptions, our results confirm the general idea about what economic history journals are the most influential for economic...... history, and that, although economic history is quite independent from economics as a whole, knowledge exchange between the two fields is indeed going on....

  8. Ranking Economic History Journals

    DEFF Research Database (Denmark)

    Di Vaio, Gianfranco; Weisdorf, Jacob Louis

    This study ranks - for the first time - 12 international academic journals that have economic history as their main topic. The ranking is based on data collected for the year 2007. Journals are ranked using standard citation analysis where we adjust for age, size and self-citation of journals. We...... also compare the leading economic history journals with the leading journals in economics in order to measure the influence on economics of economic history, and vice versa. With a few exceptions, our results confirm the general idea about what economic history journals are the most influential...... for economic history, and that, although economic history is quite independent from economics as a whole, knowledge exchange between the two fields is indeed going on....

  9. Lifestyle Journalism: Blurring boundaries

    DEFF Research Database (Denmark)

    From, Unni

    2013-01-01

    Lifestyle journalism has experienced enormous growth in the media over the past two decades, but scholars in the fields of journalism and communication studies have so far paid relatively little attention to a field that is still sometimes seen as "not real journalism". There is now an urgent need...... for in-depth exploration and contextualisation of this field, with its increasing relevance for 21st century consumer cultures. For the first time, this book presents a wide range of studies which have engaged with the field of lifestyle journalism in order to outline the various political, economic...... of sub-fields such as travel, music, food, health, fashion and personal technology journalism. This volume provides a fascinating account of the different facets of lifestyle journalism, and charts the way forward for a more sustained analysis of the field. This book was originally published as a special...

  10. Traditional Chinese Medical Journals currently published in mainland China.

    Science.gov (United States)

    Fan, Wei-Yu; Tong, Yuan-Yuan; Pan, Yan-Li; Shang, Wen-Ling; Shen, Jia-Yi; Li, Wei; Li, Li-Jun

    2008-06-01

    Traditional Chinese Medical (TCM) journals have been playing an important role in scholarly communication in China. However, the information in those periodicals was not enough for international readers. This study aims to provide an overview of TCM journals in China. TCM journals currently published in mainland China were identified from Chinese databases and journal subscription catalogs. Data on publication start year, publishing region, language, whether core journals, whether indexed in famous international databases, with/without accessible URL were investigated, and subjects of journals were categorized. One hundred and forty-nine (149) TCM journals are currently published in mainland China; 88.59% of them are academic journals. The subjects of those journals are various, ranging from the general TCM, integrative medicine, herbal medicines, to veterinary TCM. The publishing areas are distributed in 27 regions, with Beijing having the most TCM journals published. One hundred and forty-two (142) of those periodicals are in Chinese, while 4 are also in English, and 3 in other languages. Only 8 TCM journals were recognized as core journals, and 5 were identified as both core journals and journals with high impacted articles by all evaluation systems in China. A few of the TCM journals from mainland China are indexed in PubMed/MEDLINE (10), EMBASE (5), Biological Abstracts (2), or AMED (1). Online full-text Chinese databases CJFD, COJ, and CSTPD cover most of TCM the journals published in the country. One hundred (100) TCM journals have accessible URLs, but only 3 are open access with free full texts. Publication of TCM journals in China has been active in academic communication in the past 20 years. However, only a few of them received recognized high evaluation. English information from them is not sufficient. Open access is not extensively acceptable. The accessibility of those journals to international readers needs to be improved.

  11. Impersonation of journal website

    Directory of Open Access Journals (Sweden)

    Jaeseok Choi

    2017-08-01

    Full Text Available The website of Journal of Electrical Engineering & Technology (JEET, http://www.jeet.or.kr published by Korean Institute Electrical Engineers was found to be impugned in March 2017. The purpose of this case study article was to describe the case of phishing and suggest the measures to prevent it. In June 29, 2016, informant submitted his manuscript to phishing e-mail jeet@jeet.us, because he misunderstood the phishing site as that of JEET. After that he received the confirmation mail of acceptance and expected date of publication. However, there was no further progress, he inquired official e-mail of JEET on his manuscript. During the correspondence with journal secretary, he found that it was the phishing. There was no request of publication fee from phisher. It is difficult to know what is the purpose of this phishing. Probably, it may be an initial inducement to deceive the contributor. If the manuscript is published in the phishing web site, phisher may be able to request publication fee as next fraudulent action. Besides of announcement of precaution on phishing, regrettably there is no way to punish phishers or more active protective action. It was not possible to ask the investigation of the case to police because there was no monetary loss. Also it was impossible to shut down the phishing web site http://www.jeet.us because server was located in the United States. The international cooperation, enactment of international law on phishing, and its enforcement is necessary to eradicate this kind of criminal action.

  12. African Journals Online: Togo

    African Journals Online (AJOL)

    Journal de la Recherche Scientifique de l'Université de Lomé. Le Journal de la Recherche Scientifique de l'Université de Lomé doit être abrégé sous la forme: J. Rech. Sci. Univ. Lomé (Togo). Les articles du Journal de la Recherche Scientifique de l'Université de Lomé (Togo) sont abstractés et indexés dans la base de ...

  13. Journal of transportation engineering

    National Research Council Canada - National Science Library

    1983-01-01

    The Journal of Transportation Engineering contains technical and professional articles on the planning, design, construction, maintenance, and operation of air, highway, rail, and urban transportation...

  14. Beyond Journalism: Theorizing the Transformation of Journalism

    NARCIS (Netherlands)

    Deuze, M.; Witschge, T.

    Journalism has enjoyed a rich and relatively stable history of professionalization. Scholars coming from a variety of disciplines have theorized this history, forming a consistent body of knowledge codified in national and international handbooks and canonical readers. However, recent work and

  15. Journalism in the Movies.

    Science.gov (United States)

    Ehrlich, Matthew C.

    1997-01-01

    Analyzes how Hollywood's journalism movie genre has portrayed the news media over the years. Suggests that the movies' relationship to the press reflects a fundamentally ambivalent relationship between the press and the broader culture and that Hollywood explicitly portrays institutional and cultural tensions within journalism which the news media…

  16. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Historically, scholarly information has flowed from North to South and from West to East. ... by title, author/s or keywords,; and find other information sources and more resources for researchers and journals. ... Mizan Law Review; The abnormal chest X-ray – when to refer to a specialist ... Nigerian School Library Journal.

  17. African Journals Online (AJOL)

    African Journals Online (AJOL)

    AJOL is a Non-Profit Organisation based in South Africa. More about AJOL and the challenges we work to address. AJOL hosts 521 Journals, including 221 Open Access Journals; The site has 12 740 Issues containing 149 188 Abstracts. There are 143 406 Full Text Articles for download, of which 82 198 are Open Access ...

  18. Humanities Review Journal

    African Journals Online (AJOL)

    Humanities Review Journal is published in June and December by Humanities Research Forum. The Journal publishes original, well-researched papers, review essays, interviews, resume, and commentaries, which offer new insights into the various disciplines in the Humanities. The focus is on issues about Africa.

  19. Journal of Agricultural Extension

    African Journals Online (AJOL)

    Scope of journal The Journal of Agricultural Extension" is devoted to the advancement of knowledge of agricultural extension services and practice through the publication of original and empirically based research, ... Vol 22, No 1 (2018) ... Symbol recognition and interpretation of HIV/AIDS pictorial messages among rural ...

  20. What are Bogus Journal

    Directory of Open Access Journals (Sweden)

    Willy A. Renandya

    2014-11-01

    Full Text Available Abstract The purpose of this paper is to warn novice researchers/writers of the danger of publishing in journals of questionable quality (often referred to as bogus, scam or predatory journals and highlight key characteristics of these journals and their method of operation. Understanding the characteristics and how they operate could help us avoid publishing our work in scam journals. These journals claim (falsely that they employ a blind review process by experts in the field, promise quick turnaround, claim legitimacy by quoting the ISSN and listing a number of databases in which they are indexed (e.g., EBSCO, DOAJ and PROQUEST. The paper outlines 15 reasons why as members of the academic community we should shun journals of dubious quality. The key message of this paper is that before we send our scholarly work to academic journals, we need to invest time doing our due diligence, making sure that our target journal is a legitimate and respectable outlet for our work.

  1. Teaching Journalism in Guangzhou.

    Science.gov (United States)

    Zeitlin, Arnold

    2002-01-01

    Explains that at the core of an effort to teach journalism in English to students in the People's Republic of China is the question of whether there is a point to exposing western values to students. Includes an American journalist's experience teaching in an English-language journalism program at a Chinese University and his search for an answer…

  2. Diversity of Journalisms

    NARCIS (Netherlands)

    Ramon Salavaria (ed.)

    2011-01-01

    These Proceedings gather the research works presented to the Conference “Diversity of Journalisms: Shaping Complex Media Landscapes”, held in Pamplona (Spain), the 4th and 5th of July, 2011. This event was co-organised by ECREA Journalism Studies Section and the School of Communication of the

  3. African Journals Online: Mozambique

    African Journals Online (AJOL)

    This biannual, peer reviewed journal aims at providing space for sharing and debating issues of social, political and economic development not only for academic consumption, but also for policy considerations. Launched in 2011, the African Journal of Governance and Development has grown from strength to strength.

  4. African Journals Online (AJOL)

    African Journals Online (AJOL)

    It has also been difficult for African researchers to access the work of other African academics. In partnership with hundreds of journals from all over the continent, AJOL works to change this, so that African-origin research output is available to Africans and to the rest of the ... Egyptian Journal of Medical Human Genetics.

  5. African Journals Online (AJOL)

    African Journals Online (AJOL)

    In partnership with hundreds of journals from all over the continent, AJOL works to change this, so that African-origin research output is available to Africans and to the rest of the world. ... AFRREV IJAH: An International Journal of Arts and Humanities; Human Rights under the Ethiopian Constitution: A Descriptive Overview

  6. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest and pre-eminent collection of peer-reviewed, African-published scholarly journals. Historically, scholarly information has flowed from North to South and from West to East. It has also been difficult for African researchers to access the work of other African academics.

  7. Nigerian Journal of Parasitology

    African Journals Online (AJOL)

    The Journal is devoted primarily to pure and applied research and provides a medium for the publication of investigations in all aspects of Parasitology. The Journal will publish original research and technical studies carried out in the country, as well as works and documents from foreigners which are of interest to Nigeria.

  8. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Southern African Business Review; Effect of Globalization on Sovereignty of States Nnamdi Azikiwe University Journal of International Law and Jurisprudence; The Influence of Motivation on Employees' Performance: A Study of Some Selected Firms in Anambra State AFRREV IJAH: An International Journal of Arts and ...

  9. Nigerian Journal of Technology

    African Journals Online (AJOL)

    The Nigerian Journal of Technology is based at the Faculty of Engineering, University of Nigeria, Nsukka and has been in existence for over 30 years. Any paper submitted to the journal should be an original thought-provoking review or appraisal of existing knowledge, collation of relevant data of interest or investigation ...

  10. Oromia Law Journal

    African Journals Online (AJOL)

    The Oromia Law Journal covers articles, book reviews, legislative and case comments related to legal, economic, political and social issues arising in relation to Oromia, Ethiopian, and other related International Laws. As such, the journal has two audiences-primary and secondary. The primary ones are legal professionals ...

  11. Ghana Medical Journal

    African Journals Online (AJOL)

    The Ghana Medical Journal is a peer-reviewed, open access journal published by the Ghana Medical Association. It was established in 1962 It publishes quality manuscripts in in all aspects of health, health care and the medical sciences. The full text of published articles are available online at this website and at African ...

  12. Sahel Medical Journal

    African Journals Online (AJOL)

    Sahel Medical Journal is a quarterly international Journal devoted solely to (1) dissemination of information about medical sciences in Nigeria, particularly the Sahel zone, Africa and the rest of the world, (2) to provide a medium where national and international medical and health organizations may relay information to ...

  13. Scientific Medical Journal

    African Journals Online (AJOL)

    Scientific Medical Journal: an official journal of Egyptian Medical Education provides a forum for dissemination of knowledge, exchange of ideas, inform of exchange of ideas, information and experience among workers, investigators and clinicians in all disciplines of medicine with emphasis on its treatment and prevention.

  14. African Journals Online (AJOL)

    African Journals Online (AJOL)

    In partnership with hundreds of journals from all over the continent, AJOL works to change this, so that African-origin research output is available to Africans and to the rest of the world. AJOL is a Non-Profit Organisation based ... International Journal of Engineering, Science and Technology. Vol 4, No 1 (2012). International ...

  15. African Journals Online: Senegal

    African Journals Online (AJOL)

    Africa Development. Africa Development is the quarterly bilingual journal of CODESRIA. It is a social science journal whose major focus is on issues which are central to the development of society. Its principal objective is to provide a forum for the exchange of ideas among African scholars from a variety of intellectual ...

  16. African Journals Online (AJOL)

    African Journals Online (AJOL)

    AJOL is a Non-Profit Organisation based in South Africa. More about AJOL and the challenges we work to address. AJOL hosts 521 Journals, including 244 Open Access Journals; The site has 13 071 Issues containing 154 212 Abstracts. There are 148 378 Full Text Articles for download, of which 91 631 are Open Access ...

  17. African Journals Online: Religion

    African Journals Online (AJOL)

    Items 1 - 6 of 6 ... HTS Teologiese Studies/Theological Studies is an acclaimed Open Access journal with broad coverage that promotes multidisciplinary, religious, and biblical aspects of studies in the international theological arena. The journal's publication criteria are based on high ethical standards and the rigor of the ...

  18. African Journal of Psychiatry

    African Journals Online (AJOL)

    Publisher Update - September 2013: This journal is now published by OMICS ... The journal's primary aim is the publication of review and CME papers, aimed at ... in the following programmes: Science Citation Index Expanded (SCIE), Social ... The accuracy of interpreting key psychiatric terms by ad hoc interpreters at a ...

  19. Jos Journal of Medicine

    African Journals Online (AJOL)

    Jos Journal of Medicine is a peer-reviewed journal and editorially independent publication of the Association of Resident Doctors of Jos University Teaching Hospital. It seeks to provide a forum for the dissemination of research, review articles and information in all aspects of medical sciences among medical professionals ...

  20. African Journals Online (AJOL)

    African Journals Online (AJOL)

    Ethiopian Journal of Education and Sciences; Educational leadership and management: theory, policy and practice. South African Journal of Education; An approach to the neck mass. Continuing Medical Education; Crime and Punishment in Igbo Customary Law: The Challenge of Nigerian Criminal Jurisprudence OGIRISI: ...

  1. African Journals Online (AJOL)

    African Journals Online (AJOL)

    It has also been difficult for African researchers to access the work of other African academics. In partnership with hundreds of journals from all over the continent, AJOL works to change this, so that African-origin research output is available to Africans and ... Featured Country: South Africa, Featured Journal: Ergonomics SA ...

  2. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest and pre-eminent collection of peer-reviewed, African-published scholarly journals. ... Continuing Medical Education; The competitive advantage of nations: is Porter's Diamond Framework a new theory that explains the international competitiveness of countries?

  3. Electronic Journalism: More Fear?

    Science.gov (United States)

    Terry, Carolyn

    2002-01-01

    Considers how the same First Amendment protections that govern print journalism apply to electronic practitioners. Discusses how the number of broadcast and online journalism classes at the nation's high schools demonstrate steady growth, according to a survey conducted in the fall of 2001 for the Radio and Television News Directors Foundation.…

  4. African Journals Online (AJOL)

    African Journals Online (AJOL)

    reviewed, African-published scholarly journals. Historically ... It has also been difficult for African researchers to access the work of other African academics. In partnership with ... Vol 15, No 1 (2018). SAHARA-J: Journal of Social Aspects of HIV/AIDS.

  5. Journal of Consumer Sciences

    African Journals Online (AJOL)

    The Journal of Consumer Sciences is an official publication of the South African Association of Family Ecology and Consumer Sciences (SAAFECS). The Journal of Consumer Sciences (JCS) publishes articles that focus on consumer experiences in different places and from different perspectives and methodological ...

  6. African Journals Online (AJOL)

    African Journals Online (AJOL)

    It has also been difficult for African researchers to access the work of other African academics. In partnership with hundreds of journals from all over the continent, AJOL works to change this, so that African-origin research output is available to Africans and to the rest of the world. AJOL is ... African Journal of AIDS Research.

  7. African Journals Online: Uganda

    African Journals Online (AJOL)

    Items 1 - 12 of 12 ... The African Crop Science Journal, a quarterly publication, publishes original ... by the African Health Journals Partnership Project that is funded by the US .... the role, development, management and improvement of higher education from an ... France, France, MEtropolitan, French Guiana, French Polynesia ...

  8. Rethinking Journalism Again

    DEFF Research Database (Denmark)

    . But does rehashing such familiar rationales bring journalism studies forward? Does it contribute to ongoing discussions surrounding journalism’s viability going forth? For all their seeming self-evidence, this book considers what bearing these old platitudes have in the new digital era. It asks whether......It’s easy to make a rhetorical case for the value of journalism. Because, it is a necessary precondition for democracy; it speaks to the people and for the people; it informs citizens and enables them to make rational decisions; it functions as their watchdog on government and other powers that be...... such hopeful talk really reflects the concrete roles journalism now performs for people in their everyday lives. In essence, it poses questions that strike at the core of the idea of journalism itself. Is there a singular journalism that has one well-defined role in society? Is its public mandate as strong...

  9. Archives: Orient Journal of Medicine

    African Journals Online (AJOL)

    Items 1 - 26 of 26 ... Archives: Orient Journal of Medicine. Journal Home > Archives: Orient Journal of Medicine. 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. 1 - 26 of 26 Items ...

  10. Archives: Medical Journal of Zambia

    African Journals Online (AJOL)

    Items 1 - 39 of 39 ... Archives: Medical Journal of Zambia. Journal Home > Archives: Medical Journal of Zambia. 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. 1 - 39 of 39 Items ...

  11. Archives: Egyptian Journal of Biology

    African Journals Online (AJOL)

    Items 1 - 17 of 17 ... Archives: Egyptian Journal of Biology. Journal Home > Archives: Egyptian Journal of Biology. 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. 1 - 17 of 17 Items ...

  12. Archives: Pan African Medical Journal

    African Journals Online (AJOL)

    Items 1 - 28 of 28 ... Archives: Pan African Medical Journal. Journal Home > Archives: Pan African Medical Journal. 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. 1 - 28 of 28 Items ...

  13. Archives: African Journal of Urology

    African Journals Online (AJOL)

    Items 1 - 50 of 66 ... Archives: African Journal of Urology. Journal Home > Archives: African Journal of Urology. 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. 1 - 50 of 66 Items, 1 2 ...

  14. University of Mauritius Research Journal

    African Journals Online (AJOL)

    for Researchers · for Journals · for Authors · for Policy Makers · about Open Access · Journal Quality. 521 African Journals. Browse By Category · Browse Alphabetically · Browse By Country · List All Titles · Free To Read Titles This Journal is Open Access. Featuring journals from 32 Countries: Algeria (5); Benin (2); Botswana ...

  15. Archives: Jos Journal of Medicine

    African Journals Online (AJOL)

    Items 1 - 18 of 18 ... Archives: Jos Journal of Medicine. Journal Home > Archives: Jos Journal of Medicine. 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. 1 - 18 of 18 Items. 2017 ...

  16. Archives: Libyan Journal of Medicine

    African Journals Online (AJOL)

    Items 1 - 23 of 23 ... Archives: Libyan Journal of Medicine. Journal Home > Archives: Libyan Journal of Medicine. 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. 1 - 23 of 23 Items ...

  17. Archives: African Crop Science Journal

    African Journals Online (AJOL)

    Items 1 - 50 of 99 ... Archives: African Crop Science Journal. Journal Home > Archives: African Crop Science Journal. 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. 1 - 50 of 99 ...

  18. Archives: African Crop Science Journal

    African Journals Online (AJOL)

    Items 51 - 99 of 99 ... Archives: African Crop Science Journal. Journal Home > Archives: African Crop Science Journal. 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. 51 - 99 of 99 ...

  19. Archives: Edo Journal of Counselling

    African Journals Online (AJOL)

    Items 1 - 6 of 6 ... Archives: Edo Journal of Counselling. Journal Home > Archives: Edo Journal of Counselling. 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. 1 - 6 of 6 Items. 2011 ...

  20. International Journal of Engineering, Science and Technology ...

    African Journals Online (AJOL)

    International Journal of Engineering, Science and Technology: Journal Sponsorship. Journal Home > About the Journal > International Journal of Engineering, Science and Technology: Journal Sponsorship. Log in or Register to get access to full text downloads.

  1. African Journals Online: Open Access Titles

    African Journals Online (AJOL)

    African Journal of Food, Agriculture, Nutrition and Development View Journal | Current .... Journal is Open Access. International Journal of Applied Agriculture and Apiculture Research ... Journal of Applied Biosciences View Journal | Current ...

  2. Editorial policies and good practices in editing the journal 'International Medical Journal--Medicus'.

    Science.gov (United States)

    Pollozhani, Aziz

    2014-01-01

    Ten years ago the Association of Albanian Physicians in Macedonia undertook the very brave step of publishing a scientific medical journal, Medicus, as a platform for publishing biomedical research papers. Medical journal MEDICUS is an international peer-review journal of biomedical science. The first issue was published in 2004, starting with publishing two issues per year. From 2013, the journal delivered three issues per year, namely in January, May and September. Editor-in-Chief of the journal is Prof. Dr. Aziz Pollozhani. This year marks the tenth anniversary since publication of the first issue of Medicus, a fact that makes us proud and happy. The journal has its own official website (www.imjm.mk), where papers can be submitted and published in electronic form. In addition, the journal also comes out in print form to be distributed mainly in the region. Taking into account the specific socio-cultural characteristics of the region, the journal attempts to promote research activities in the region, while seeking to serve as an educational tool to promote scientific work in such a setting. As a result, Medicus accepts manuscripts for publication in English, Albanian and Macedonian, with a mandatory abstract in English for all papers. The journal Medicus represents a solid platform of biomedical sciences that will serve to advance scientific research and promote professional achievements in medicine.

  3. African Journal of Marine Science

    African Journals Online (AJOL)

    AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search ... The African (formerly South African) Journal of Marine Science provides an international forum for the publication of original scientific contributions or critical reviews, ...

  4. Research Journal of Health Sciences

    African Journals Online (AJOL)

    AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL ... The Research Journal of Health Sciences is dedicated to promoting high quality research work in the field of health and related biological sciences. It aligns ...

  5. Tropical Journal of Health Sciences

    African Journals Online (AJOL)

    The Tropical Journal of Health Sciences (TJHS) is an international journal which ... of ideas to those engaged in work in the Health Sciences and related fields. The journal intends to publish high quality papers on original research, case ...

  6. Journal of Pharmacy & Bioresources: Submissions

    African Journals Online (AJOL)

    Journal Home > About the Journal > Journal of Pharmacy & Bioresources: Submissions ... The reference section should be typed on separate pages. ... human subjects in their work to seek approval from the appropriate Ethical Committees.

  7. Botswana Journal of Economics: Submissions

    African Journals Online (AJOL)

    BOJE) Aims and Objectives: BOJE is a refereed Journal. The main objective of the journal is to promote the discussion of economic issues at the theoretical, applied and policy levels. The journal welcomes contributions that discuss these issues ...

  8. African Journals Online: Environmental Sciences

    African Journals Online (AJOL)

    Items 1 - 28 of 28 ... African Journals Online: Environmental Sciences ... Anthropology, Technology, Computer Science & Engineering, Veterinary Science ... and Metabolism (AJEM) is a biomedical peer-reviewed journal with international circulation. ... AFRREV STECH: An International Journal of Science and Technology.

  9. Sahel Journal of Veterinary Sciences

    African Journals Online (AJOL)

    The Sahel Journal of Veterinary Sciences is the official journal of the Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria. The journal welcomes original research articles, short communications and reviews on all aspects of veterinary sciences and related disciplines.

  10. International Journal of Health Research

    African Journals Online (AJOL)

    Erah

    The International Journal of Health Research is an online international journal ... The journal is devoted to the promotion of health sciences and related disciplines (including medicine, pharmacy, nursing, biotechnology, cell and molecular ...

  11. Ethiopian Journal of Health Sciences

    African Journals Online (AJOL)

    Journal Home > Vol 28, No 3 (2018) ... Ethiopian Journal of Health Sciences is a general health science journal addressing clinical medicine, ... Postnatal Care Utilization and Associated Factors among Married Women in Benchi-Maji Zone, ...

  12. Contemporary Journal of African Studies

    African Journals Online (AJOL)

    Contemporary Journal of African Studies. Journal Home · ABOUT · Advanced Search · Current Issue · Archives · Journal Home > Vol 3, No 1 (2015) >. Log in or Register to get access to full text downloads.

  13. The Importance of Nutrition Journal Publication

    Directory of Open Access Journals (Sweden)

    Saptawati Bardosono

    2017-09-01

    Full Text Available The rapid increase of nutrition journal publications indicate on the urgency of the problems in the world of nutrition. Research scientists had published various condition related to nutritional status and determined the cause of this problem. Expanding populations, newly achieved national freedoms, and the urge for a better life in the developing countries of Asia, Africa, and Latin America, together with food surpluses, enlightened self-interest, and awakened conscience in the more privileged countries of Europe, North America and Oceania have contributed to resurgence of interest in the world of health and nutrition problems.1 Indonesian Nutrition Association (registered as Perhimpunan Nutriti Indonesia, which was founded in 2011, has been continuing visions and misions to continue and develop the work of late Dr. Iqbal Mustafa, MD, PhD, FCCM. He encouraged the evolution of multidisciplinary Critical Care Systems in developing countries to provide benefit for great number of recipients at the lowest affordable cost. His interest in Nutritional Support had become a foundation to INA.2 To continue his legacy, INA has financially support the publishing of Journal Critical Care and Shock, the spreading of research to meet the needs of population. Since 2011, INA has taken an active role in all aspects of education and post-graduate trainings, practices, researches, and publications in nutrition disciplines. It also fosters collaboration among professionals involved in nutrition sciences. The yearly event held by INA, Nutri Symposium, has been running for 12 years. As part of this activity, we gather all participants to submit oral or poster presentation, which will also be published in form of abstracts in proceeding book. The demand from nutrition researchers and scientists to join the Nutri Symposium as a platform to publish their work has encouraged INA to create an International Journal focus on Nutrition, entitled World Nutrition Journal

  14. South African Gastroenterology Review: Journal Sponsorship

    African Journals Online (AJOL)

    South African Gastroenterology Review: Journal Sponsorship. Journal Home > About the Journal > South African Gastroenterology Review: Journal Sponsorship. Log in or Register to get access to full text downloads.

  15. HYBRIDIZATION AND CHAMELEONIC JOURNALISM

    Directory of Open Access Journals (Sweden)

    Adriana Schryver Kurtz

    2016-12-01

    Full Text Available O texto aborda a crescente hibridização entre o Jornalismo e demais formatos midiáticos como resultado natural de um processo que já está na própria raiz da comunicação enquanto atividade histórica. A lógica interna e as potencialidades estéticas e discursivas do fenômeno são analisadas a partir das convergências entre jornalismo e cinema. Para tanto, utiliza o falso documentário Zelig (1983, texto fílmico de Woody Allen, híbrido por natureza, postulado como um microcosmo rico em pistas e sugestões para refletir sobre a fusão entre conteúdos informativos e não informativos.   PALAVRAS-CHAVE: Hibridização; Jornalismo; Cinema; Zelig.       ABSTRACT The text discusses the growing hybridization between journalism and other media formats as a natural result of a process that is already in the very root of communication while historical activity. The internal logic and the aesthetic and discursive potential of the phenomenon are analyzed through the convergences between journalism and cinema. Therefore, uses the mockumentary Zelig (1983, filmic text of Woody Allen, hybrid by nature, postulated as a microcosm rich in clues and suggestions to reflect about the merger between informative and uninformative content.      KEYWORDS: Hybridization; Journalism; Cinema; Zelig.     RESUMEN El texto aborda la creciente hibridación entre el periodismo y otros formatos de medios como um resultado natural de un proceso que ya está en la raíz misma de la comunicación mientras actividad histórica. Se analizan la lógica interna y el potencial estético y discursivo del fenómeno a través de las convergencias entre el periodismo y el cine. Para ello, utiliza el falso documental Zelig (1983, texto fílmico de Woody Allen, híbrido en su naturaleza, postulado como un microcosmos rico en pistas y sugerencias para reflexionar sobre la fusión entre contenidos informativos y no informativos.      PALABRAS CLAVE: Hibridaci

  16. International Journal of Health Research

    African Journals Online (AJOL)

    Erah

    The International Journal of Health Research is an online international journal ... disciplines (including medicine, pharmacy, nursing, biotechnology, cell and ... collaboration among scientists, the industry and the healthcare professionals.

  17. African Journals Online: Education

    African Journals Online (AJOL)

    Items 1 - 35 of 35 ... Global Journal of Education Research is aimed at promoting research in all ... Huria provides a forum for exchange of views and ideas between academicians .... and creative ways of presenting and reporting their research.

  18. Nigerian Journal of Physics

    African Journals Online (AJOL)

    Nigerian Journal of Physics publishes original papers in pure and applied physics. It aims to serve research physicists in the academia, industry as well as graduate ... Case Study of the Ikogosi Warm Spring Area, Ekiti, South-Western Nigeria.

  19. South African Medical Journal

    African Journals Online (AJOL)

    The South African Medical Journal is published by the South African Medical Association, which represents ... G Watermeyer, S Thomson, 399-402 ... Assessing the value of Western Cape Provincial Government health administrative data and ...

  20. Ife Journal of Science

    African Journals Online (AJOL)

    Ife Journal of Science (IJS) aims to publish articles resulting from original research in the broad areas of chemical, biological, mathematical and physical sciences. ... Review articles on research topics and books are also welcome.

  1. Science World Journal

    African Journals Online (AJOL)

    The journal also promotes the application of computers in modeling and Bioinformatics. ... An improved map based graphical android authentication system · EMAIL ... DFT computations of the lattice constant, stable atomic structure and the ...

  2. Edo Journal of Counselling

    African Journals Online (AJOL)

    Edo Journal of Counselling, the official publication of Edo Chapter of Counselling ... The Mediating Impact of Personality and Socio-Economic Status in the ... Fostering Adolescents' Interpersonal Behaviour: An Empirical Assessment of ...

  3. Tanzania Veterinary Journal

    African Journals Online (AJOL)

    ... Journal are the Research Workers, Veterinary Clinicians, Animal Scientists, Field Officers ... Prevalence and risk factors for Ascaris and Cryptosporidium infestations in ... Mastitis pathogens prevalent in dairy cattle at Magadu farm, Morogoro- ...

  4. US Marine Meteorological Journals

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This series consists of volumes entitled 'Meteorological Journal' (a regulation Navy-issue publication) which were to be completed by masters of merchant vessels...

  5. Aaron Journal article datasets

    Data.gov (United States)

    U.S. Environmental Protection Agency — All figures used in the journal article are in netCDF format. This dataset is associated with the following publication: Sims, A., K. Alapaty , and S. Raman....

  6. JOURNAL OF LANGUAGE, TECHNOLOGY ...

    African Journals Online (AJOL)

    Frederick Iraki

    The students learning English as a foreign language sometimes enjoy computer .... Motivation done by Ahangari & Ghalami Nobar (2012), it was found that the modern world of the ..... Journal of Academic and Applied Studies, 2(1), 39-61.

  7. Ghana Mining Journal

    African Journals Online (AJOL)

    ... in the Ghana mining journal: Geology and Mineral Exploration, Mining, Quarrying, Geomechanics, Groundwater Studies, Hydrocarbon Development, Mineral Processing, Metallurgy, Material Science, Mineral Management Policies, Mineral Economics, Environmental Aspects, Computer Applications and Mining Education.

  8. African Journals Online: Nigeria

    African Journals Online (AJOL)

    Items 101 - 150 of 221 ... Other websites related to this journal: http://www.bioline.org.br/pc ..... publishes articles on medical and medically related topics for the .... health, physiology, nutrition, feeds and feedstuff, breeding and genetics, ...

  9. Nigerian Journal of Biotechnology

    African Journals Online (AJOL)

    Nigerian Journal of Biotechnology is a publisher of multidisciplinary ... Assessment of microalgae-influenced biodeterioration of concrete structures · EMAIL FREE ... A study on 3-mercaptopyruvate sulphurtransferase (3-MST) produced under ...

  10. Zede Journal: Submissions

    African Journals Online (AJOL)

    ZEDE is a scientific journal on engineering science and application, produced ... Technical Notes of significant contribution may be considered for publication. ... Style of Writing: It is recommended that third person pronoun/s be used when ...

  11. Journal for Language Teaching

    African Journals Online (AJOL)

    PROMOTING ACCESS TO AFRICAN RESEARCH ... Journal for Language Teaching = Ijenali Yekufundzisa Lulwimi = Tydskrif vir Taalonderrig ... SAALT was founded in 1964 for the benefit of language teaching and language teachers and ...

  12. Journal of Youth Research

    Directory of Open Access Journals (Sweden)

    Dilek Solay

    2013-12-01

    Full Text Available Journal was published by Turkey Ministry of Youth and Sports for young people in order to support academic studies which is semi annual and articles submitted for “blind referee” method.

  13. Alexandria Journal of Medicine

    African Journals Online (AJOL)

    Articles containing promotional material (advertisements), whether implicit or explicit will not be included in the Journal. ... Sexual function of pregnant women in the third trimester · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT

  14. EAST AFRICAN MEDICAL JOURNAL

    African Journals Online (AJOL)

    2003-11-11

    Nov 11, 2003 ... East African Medical Journal Vol. ... Lecturer/Consultant Surgeon, Paediatric Surgery Unit, Department of Surgery, College of Medical Sciences, University of Calabar, .... mind and the results obtained were however satisfying.

  15. Nigeria Agricultural Journal

    African Journals Online (AJOL)

    Nigerian Agricultural Journal. ... Influence of differently processed mango seed kernel meal on performance response of west African dwarf goats fed spear grass based ... Borrowing behaviour among oil palm processors in Idemili North Local ...

  16. African Journals Online: Kenya

    African Journals Online (AJOL)

    Items 1 - 29 of 29 ... African Journal of Food, Agriculture, Nutrition and Development ... African and international non-governmental organizations (NGOs); African and .... for scholars and practitioners in all spheres of biological sciences to publish ...

  17. Media, journalism, objectivity

    Directory of Open Access Journals (Sweden)

    Vlajki Emil

    2013-01-01

    Full Text Available This is the text around the themes: Media and Journalism, are confronted two directions of opinions: humanism and elitism. Humanism believes that media and journalism must be metaphysically objective: able to tell the truth regardless of time, place and terms of events. Another approach, elitism, is connected with Hegel's philosophy of history. Hegel's conceptual apparatus includes: Idea, History dialectic, 'cunning mind,' self- development and self-realization. In this context, media and journalism are considered as organic unity, an inseparable part of some dialectical totality. More specifically media and journalism can be objective only if they defend concrete ideological assumptions of society to which they belong. Any other understanding of these two concepts is non-objective, mere moralizing and / or demagoguery.

  18. African Journals Online (AJOL)

    African Journals Online (AJOL)

    ... Access Journals; The site has 11 953 Issues containing 138 845 Abstracts. ... of Arts and Humanities; The Tuskegee Syphilis Study: Some Ethical Reflections ... Gender and climate change-induced conflict in pastoral communities: Case ...

  19. African Journals Online: Algeria

    African Journals Online (AJOL)

    ... Industrial Economics and Firms, Human Development & Social Economics, Agriculture ... Libraries, Digital Humanities and Heritage, Artificial Intelligence, Natural Language ... natural and life science, medicine, geology, architecture and engineering. ... for Authors · for Policy Makers · about Open Access · Journal Quality.

  20. African Journals Online: Health

    African Journals Online (AJOL)

    Items 151 - 167 of 167 ... The mission of SSMJ is to publish research and clinical guidance that will ... Tanzania Dental Journal will consider for publication articles on original .... appropriate international medical and health organisations may ...

  1. African Journal of Biotechnology

    African Journals Online (AJOL)

    Journal Home > Vol 16, No 3 (2017) ... the most exciting research in all areas of applied biochemistry, industrial microbiology, molecular biology, genomics and proteomics, food and agricultural technologies, and metabolic engineering.

  2. Nigerian Veterinary Journal

    African Journals Online (AJOL)

    The Nigerian Veterinary Journal (NVJ) has been in existence since 1971. ... dogs diagnosed with parvovirus enteritis in some veterinary clinics in Nigeria · EMAIL ... Rabies vaccination status among occupationally exposed humans in Nigeria ...

  3. Nigerian School Library Journal

    African Journals Online (AJOL)

    The Nigerian School Library Journal is a scholarly publication of the Nigerian ... media resources management, reading development, e-learning/m-learning, and other ... Team management in the 21 century: A human relations theory angle ...

  4. Ghana Journal of Science

    African Journals Online (AJOL)

    The GHANA JOURNAL OF SCIENCE is published jointly by the Council for Scientific and Industrial Research of Ghana and the Ghana Science Association. It is open to all ... the authors belong. The topics need not be related to West Africa.

  5. African Journals Online (AJOL)

    African Journals Online (AJOL)

    African Journals OnLine (AJOL) is the world's largest and pre-eminent ... The competitive advantage of nations: is Porter's Diamond Framework a new ... Advertising practice in Nigeria: Development, new trends, challenges and prospects

  6. Models of Journalism

    DEFF Research Database (Denmark)

    Bro Petersen, Peter

    Models of Journalism investigates the most fundamental questions of how journalists can best serve the public and what factors enable or obstruct them in doing so. The book evaluates previous scholarly attempts at modeling the function and influencing factors of journalism, and proceeds to develop...... a range of important new models that take contemporary challenges faced by journalists and journalism into account. Among these new models is the "chronology-of-journalism", which introduces a new set of influencing factors that can affect journalists in the 21st century. These include internal factors...... – journalistic principles, precedents and practices – and external factors – journalistic production, publication and perception. Another new model, the "journalistic compass", delineates differences and similarities between some of the most important journalistic roles in the media landscape. For each new model...

  7. African Journals Online: Zimbabwe

    African Journals Online (AJOL)

    Items 1 - 12 of 12 ... SAFERE: Southern African Feminist Review. SAFERE provides women with a writing platform which is feminist in content and ... The Zimbabwe Journal of Educational Research comprised of four sections: Scholarly articles ...

  8. Language Works. Linguistic Journal

    DEFF Research Database (Denmark)

    Hartling, Anna Sofie; Nørreby, Thomas Rørbeck; Skovse, Astrid Ravn

    2016-01-01

    Language works! – and with this initiative and this journal we want to give the opportunity to many more students to present their linguistic research to each other, to the scientific community and to all interested.......Language works! – and with this initiative and this journal we want to give the opportunity to many more students to present their linguistic research to each other, to the scientific community and to all interested....

  9. Chinese Journalism Students

    DEFF Research Database (Denmark)

    Dombernowsky, Laura Møller

    2014-01-01

    As important providers of information, analysis of current events and debates, journalists are subject to high expectations regarding their professional values. Journalism is considered to be more than merely a career; it is construed as a profession that builds on personal commitment to serve...... 2012 with 41 students studying journalism at People's University, Tsinghua University, China Youth University for Political Sciences, Central University for Nationalities, Beijing Foreign Languages University and Chinese Academy of Social Sciences in Beijing and at Fudan University in Shanghai....

  10. Investigative Journalism: global perspectives

    OpenAIRE

    Price, Stuart

    2017-01-01

    This volume contains the work of nine members or associates of the Media Discourse Group. Investigative Journalism: Global Perspectives presents a theoretical and practical guide to contemporary international investigative journalism to outline principles of modern investigative work in the digital world. A diverse range of contributions from academics, journalists, and activists interrogate wide ranging issues such as state power, freedom of speech and social justice, as well as exploring...

  11. About the Journal

    OpenAIRE

    Lena Hoffman; Endri Papajorgji

    2018-01-01

    Academic Journal of Business, Administration, Law and Social Sciences is an international peer-reviewed journal published three times a year by International Institute for Private, Commercial and Competition Law. The need for different approaches in science, such as in business, economics, law, administration and social sciences is a must in the whole field of scientific research. Academics, Professors, Researchers, Students and the whole world is in a new era of communication, which causes f...

  12. Worldwide orthopaedic research activity 2010-2014: Publication rates in the top 15 orthopaedic journals related to population size and gross domestic product.

    Science.gov (United States)

    Hohmann, Erik; Glatt, Vaida; Tetsworth, Kevin

    2017-06-18

    To perform a bibliometric analysis of publications rates in orthopedics in the top 15 orthopaedic journals. Based on their 2015 impact factor, the fifteen highest ranked orthopaedic journals between January 2010 and December 2014 were used to establish the total number of publications; cumulative impact factor points (IF) per country were determined, and normalized to population size, GDP, and GDP/capita, comparison to the median country output and the global leader. Twenty-three thousand and twenty-one orthopaedic articles were published, with 66 countries publishing. The United States had 8149 publications, followed by the United Kingdom (1644) and Japan (1467). The highest IF was achieved by the United States (24744), United Kingdom (4776), and Japan (4053). Normalized by population size Switzerland lead. Normalized by GDP, Croatia was the top achiever. Adjusting GDP/capita, for publications and IF, China, India, and the United States were the leaders. Adjusting for population size and GDP, 28 countries achieved numbers of publications to be considered at least equivalent with the median academic output. Adjusting GDP/capita only China and India reached the number of publications to be considered equivalent to the current global leader, the United States. Five countries were responsible for 60% of the orthopaedic research output over this 5-year period. After correcting for GDP/capita, only 28 of 66 countries achieved a publication rate equivalent to the median country. The United States, United Kingdom, South Korea, Japan, and Germany were the top five countries for both publication totals and cumulative impact factor points.

  13. Towards a Christian model for journalism

    Directory of Open Access Journals (Sweden)

    J.D. Froneman

    1997-03-01

    Full Text Available While it is necessary to question the underlying presuppositions of the news media, it is not adequate merely to criticize or reject non-Christian models. However, little has been done to formulate a comprehensive Christian model for the media in general, or journalism in particular. In this article some outlines of a Christian model for journalism are suggested. It includes three basic principles as well as several sub-principles (or norms. It is argued that the suggested norms could be regarded as "news values". The general use of the term "news values” is thus rejected in order to protect the normative character of values. It is stressed that as journalism is not an "objective", value-free activity, all aspects o f the ongoing selection process instrinsic to journalism ought to acquire a Christian flavour.

  14. Higher education journals as didactic frameworks

    DEFF Research Database (Denmark)

    Keiding, Tina Bering; Qvortrup, Ane

    2018-01-01

    topics. Students as participants and learners are a frequent topic in especially one journal, but receive little attention in the other journals. Also, educational technologies receive a varying degree of attention across the journals. Based on the mapping, this article discusses Higher Education......During the last 20 years, we have witnessed a growing interest in research in teaching, learning and educational development in higher education (HE). The result is that ‘Higher Education Didactics’ has established itself as a research field in its own right. This article explores Higher Education...... influential, while the others stem from the Anglo-Saxon curriculum tradition. The mapping shows that all journals are strongly occupied with teaching methods, especially methods grounded in theories of active and social learning. In contrast, didactic categories such as goal, content and assessment are rare...

  15. Rethinking Constructive Journalism by Means of Service Journalism

    DEFF Research Database (Denmark)

    From, Unni; Kristensen, Nete Nørgaard

    2018-01-01

    This article argues that constructive journalism scholarship should look to service journalism and its subfields, cultural journalism and lifestyle journalism, to understand key characteristics of this newer type of journalism. Though constructive journalism is typically associated...... with the reporting of political and social issues, it is also seen to challenge traditional ways of writing about such hard news topics due to its positive and solution-oriented approach. In this respect, constructive journalism seems to reuse some of the approaches known from service journalism, especially in terms...... of audience address and an expanded social role for journalists. However, service journalism emerged in the increasingly commercialized and globalized media landscape of the post-WW2-period, whereas constructive journalism has emerged in the digital media landscape of the 2010s. These historical contexts...

  16. Journal of Chemical Sciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences; Volume 125; Issue 6. Chemistry of phosphorus ylides 31: Reaction of azidocoumarin with active phosphonium ylides, synthesis and antitumour activities of chromenones. Soher S Maigali Mansoura A Abd-El-Maksoud Fouad M Soliman. Regular Articles Volume 125 Issue 6 ...

  17. Concluding Remarks | Ewing | Rwanda Journal

    African Journals Online (AJOL)

    Rwanda Journal. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 2, No 2 (2015) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register. Concluding Remarks. Helen Ewing. Abstract. No Abstract. Full Text:.

  18. Atomic Power | Taylor | Zede Journal

    African Journals Online (AJOL)

    Zede Journal. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 3 (1968) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register. Atomic Power. D Taylor. Abstract. No Abstract. Full Text: EMAIL FREE FULL TEXT ...

  19. ChemSearch Journal: Submissions

    African Journals Online (AJOL)

    AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING ... SCOPE: ChemSearch Journal is a peer-reviewed journal that publishes ... Authors whose papers have been accepted for publication will be notified in writing. ... The literature cited must be discussed to show the relationships between the ...

  20. Development of an online journal.

    Science.gov (United States)

    Doheny, M; Thede, L

    2000-01-01

    This article describes the historical development of an electronic nursing journal, (OJIN), from inception to reality. Planning focused on a needs analysis for an electronic journal, audience and marketing concerns, editorial board membership, and financing of the journal. Included are recommendations for those considering starting an online journal.

  1. Journal of Proton Therapy

    Directory of Open Access Journals (Sweden)

    Editorial Office

    2015-01-01

    Full Text Available Journal of Proton Therapy (JPT is an international open access, peer-reviewed journal, which publishes original research, technical reports, reviews, case reports, editorials, and other materials on proton therapy with focus on radiation oncology, medical physics, medical dosimetry, and radiation therapy.No article processing/submission feeNo publication feePeer-review completion within 3-6 weeksImmediate publication after the completion of final author proofreadDOI assignment for each published articleFree access to published articles for all readers without any access barriers or subscriptionThe views and opinions expressed in articles are those of the author/s and do not necessarily reflect the policies of the Journal of Proton Therapy.Authors are encouraged to submit articles for publication in the inaugural issue of the Journal of Proton Therapy by online or email to editor@protonjournal.comOfficial Website of Journal of Proton Therapy: http://www.protonjournal.org/

  2. International Journal of Engineering, Science and Technology ...

    African Journals Online (AJOL)

    International Journal of Engineering, Science and Technology: About this journal. Journal Home > International Journal of Engineering, Science and Technology: About this journal. Log in or Register to get access to full text downloads.

  3. Ethiopian Journal of Environmental Studies and Management ...

    African Journals Online (AJOL)

    Ethiopian Journal of Environmental Studies and Management: About this journal. Journal Home > Ethiopian Journal of Environmental Studies and Management: About this journal. Log in or Register to get access to full text downloads.

  4. Journalism of Relation

    DEFF Research Database (Denmark)

    Blaagaard, Bolette

    of cosmopolitanism from universal reproductions of sameness into creative productions of singular self-other relations based on the practiced and productive journalism. This is substantiated through case study analyses. The aim is to challenge the modern, rational journalistic subject referring back to the unified...... of the self-other relation which is simultaneously personal and political. Secondly, the dissertation relates the phenomenological ‘race’ and gender debates to the societal and productive context of contemporary European and ‘western’ globalised and mediated culture and politics. Journalism is re...... accountability and relation from journalistic training and practices whereby a ‘white’ and homogeneous social imaginary is reproduced. I make a call for thinking about journalism as relation – in terms of technological mediations, but also in terms of subjectivities. In order to allow for this, a shift is needed...

  5. Specificity of online journalism

    Directory of Open Access Journals (Sweden)

    Radovanović-Šarenac Dejana

    2012-01-01

    Full Text Available New changes in the electronic communication was carried out by a large impact on changes in human behavior and every social sphere in last twenty years of new technological era. The issues dealt with by this paper relates to the fundamental changes posed by online journalism in relation to traditional forms of communication and placement of information and whether and how much it can be a threat to their possible 'closure'. This kind of journalism relies on the classical principles of journalism, but in term of genre it introduces innovation-ns, trying to be socially responsible, gives priority to audiences, and not profit and gives a significant contribution to creating a more objective picture of the world.

  6. MUTANT AND BASTARD JOURNALISM

    Directory of Open Access Journals (Sweden)

    Omar G. Rincón

    2017-06-01

    Full Text Available The 20th century ended in 2016. Fidel Castro died in politics. And the journalism could not tell the reality. The great ruin of journalism is that it has stopped narrating democracy, making sense of our times, telling the realities of ordinary people, controlling power. Thus, the journalistic office is an endangered species in the mainstream media that have decided to become political actors that lobby for business interests and have turned information into sensationalism or show business. By doing so, we have reached a world where the value of journalistic information is low and media legitimacy and credibility is ruined. This essay argues that it is necessary and urgent to re-invent journalism and raise some glimpses of where to do it.

  7. Interactive Graphic Journalism

    Directory of Open Access Journals (Sweden)

    Laura Schlichting

    2016-12-01

    Full Text Available This paper examines graphic journalism (GJ in a transmedial context, and argues that transmedial graphic journalism (TMGJ is an important and fruitful new form of visual storytelling, that will re-invigorate the field of journalism, as it steadily tests out and plays with new media, ultimately leading to new challenges in both the production and reception process. With TMGJ, linear narratives may be broken up and ethical issues concerning the emotional and entertainment value are raised when it comes to ‘playing the news’. The aesthetic characteristics of TMGJ will be described and interactivity’s influence on non-fiction storytelling will be explored in an analysis of The Nisoor Square Shooting (2011 and Ferguson Firsthand (2015.

  8. Comparing Political Journalism

    DEFF Research Database (Denmark)

    Comparing Political Journalism is a systematic, in-depth study of the factors that shape and influence political news coverage today. Using techniques drawn from the growing field of comparative political communication, an international group of contributors analyse political news content drawn...... Comparing Political Journalism offers an unparalleled scope in assessing the implications for the ongoing transformation of Western media systems, and addresses core concepts of central importance to students and scholars of political communication world-wide....... from newspapers, television news, and news websites from 16 countries, to assess what kinds of media systems are most conducive to producing quality journalism. Underpinned by key conceptual themes, such as the role that the media are expected to play in democracies and quality of coverage...

  9. War Journalism and 'Objectivity'

    Directory of Open Access Journals (Sweden)

    Annabel McGoldrick

    2006-10-01

    Full Text Available This article opens by considering an apparent paradox. Many professional journalists, working on many media in many countries, consider themselves 'objective'. They do not, at least, set out to skew their coverage of important issues in favour of one side or the other. And yet much of their coverage of conflicts shows a discernible dominant pattern of War Journalism - biased in favour of war. This is not because of a lack of objectivity, the article suggests, but a surfeit. The set of conventions many editors and reporters regard as defining 'objective' journalism arose in response to economic and political conditions which rewarded news that could commend itself as unobjectionable to the maximum number of potential customers. Three of the most important conventions privilege official sources; a dualistic construction of stories and event, over process. Each of these, when applied to the representation of conflicts, leads readers and audiences - or leaves them - to over-value violent, reactive responses and under-value non-violent, developmental responses. Industry conventions sit uneasily alongside equally time-honoured expectations of journalism. These are encoded in rules and regulations governing the content of broadcast news, in many jurisdictions which have a public service concept for radio and television. In some respects, War Journalism can be shown to make it more difficult for broadcast news services to fulfil their public service obligations. Awareness is now growing, of the tension between these two pressures on journalism and its influence on the way pressing public debates are shaped and mediated. More Peace Journalism would help to bring public service news back into line with legitimate public expectations.

  10. Open Access Journal Policies: A Systematic Analysis of Radiology Journals.

    Science.gov (United States)

    Narayan, Anand; Lobner, Katie; Fritz, Jan

    2018-02-01

    The open access movement has pushed for greater access to scientific knowledge by expanding access to scientific journal articles. There is limited information about the extent to which open access policies have been adopted by radiology journals. We performed a systematic analysis to ascertain the proportion of radiology journals with open access options. A search was performed with the assistance of a clinical informationist. Full and mixed English-language diagnostic and interventional radiology Web of Science journals (impact factors > 1.0) were included. Nuclear medicine, radiation oncology, physics, and solicitation-only journals were excluded. Primary outcome was open access option (yes or no) with additional outcomes including presence or absence of embargo, complete or partial copyright transfer, publication fees, and self-archiving policies. Secondary outcomes included journal citations, journal impact factors, immediacy, Eigenfactor, and article influence scores. Independent double readings were performed with differences resolved by consensus, supplemented by contacting editorial staff at each journal. In all, 125 journals were identified; review yielded 49 journals (39%, mean impact factor of 2.61). Thirty-six of the journals had open access options (73.4%), and four journals were exclusively open access (8.2%). Twelve-month embargoes were most commonly cited (90.6%) with 28.6% of journals stating that they did not require a complete transfer of copyright. Prices for open access options ranged from $750 to $4,000 (median $3,000). No statistically significant differences were found in journal impact measures comparing journals with open access options to journals without open access options. Diagnostic and interventional radiology journals have widely adopted open access options with a few radiology journals being exclusively open access. Copyright © 2017 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  11. Targeting the right journal.

    Science.gov (United States)

    Piterman, L; McCall, L

    1999-07-01

    While research is scientific, publication is a mixture of science and political pragmatism. Targeting the right journal is influenced by the following factors: the discipline that best represents the subject; the purpose of the message; the audience who are to be recipients of the message; the realities of geographic parochialism; the desire of authors to maximise personal and professional opportunities. If the originally targeted journal rejects the article, authors should have alternative publication strategies that give them professional recognition without requiring them to compromise the message or their ethics.

  12. The Crop Journal: A new scientific journal for the global crop science community

    Directory of Open Access Journals (Sweden)

    Jianmin Wan

    2013-10-01

    articles on developments in both techniques and discovery in related fields. This first issue of The Crop Journal gives an idea of how the editors intend to contribute their efforts to increase knowledge and the means to obtain “good crops”. The editorial panel, selected worldwide, brings an impressive range and depth of expertise to the journal, and each member has agreed to become actively involved in guiding its development and ensuring its interaction with the wider community of crop scientists. Through the journal, we would like to support the rapidly developing scientific field, and make results accessible to all interested people. It is the wish of the Editors that the new journal will be read by agricultural scientists all over the world. Research workers can be assured that their contributions will receive prompt and careful attention and will be considered in order of receipt. It is with great pleasure that we publish the first issue of The Crop Journal. Since the success of the new journal depends entirely on the support of the crop science community it will serve, we therefore invite you to join us in making The Crop Journal an objective, advanced, open and successful journal. We look forward to receiving your reactions and advices, together with your support for the journal. May The Crop Journal find conditions favorable to its growth!

  13. KOMODIFIKASI WARGA DALAM RUANG CITIZEN JOURNALISM

    Directory of Open Access Journals (Sweden)

    Rulli Nasrullah

    2012-08-01

    Full Text Available The citizen journalism has been inuenced not only by organization culture of media and news criteria, but also the position of citizens. This entire time citizens are merely a consumers and their position is passive to information produced by traditional media. With the emergence of citizen journalism, now the citizens not only become news consumers but also act as news producers and consumers at the same time (produsage. The commodication of citizen journalism is a phenomenon of counter commidication done by the companies of traditional media. This shown that there are symptoms of attracting each other in the room (market of citizen journalism that the citizens do not always react passively to the exposure of media and become a commodity by traditional media companies or the advertiser, but they also commodify anything as whatever they want to reach. Thus, this research is a rebutting the denition of citizen journalism popularized by Curt Chandler and Jesse Hicks from Penn State University who said that citizen journalism is citizens activities in publishing a content because of their interest to a case without economic motive or personal gain.

  14. Dissertation to Journal Article: A Systematic Approach

    Directory of Open Access Journals (Sweden)

    Brychan Thomas

    2012-01-01

    Full Text Available The aim of the paper is to elucidate a systematic approach to convert a Masters dissertation into a journal article. This approach has involved a fundamental thematic review of the literature concerning the conversion of dissertations into journal articles. From these sources pertinent approaches, processes, lessons, and guidance have been noted and analysed. By undertaking this distillation of relevant material, to enable the efficient conversion of dissertations into journal articles, appropriate procedures and conclusions have been compiled. Findings present current thinking on the conversion of a dissertation into a journal paper in terms of how dissertations differ from journal articles, reframing for publication, rethinking the material, trimming the length, time taken to rewrite the material, specific lessons, and adapting for publication. Recommendations provided in the paper will enable staff to take this course of action when developing their publication portfolio to become more research active and to make an important contribution to the publication output of their department/school/faculty, especially with regard to assessment exercises such as the Research Excellence Framework. The value of the paper is that by following appropriate approaches, processes, and procedures it is possible to convert a good dissertation into a ranked journal article.

  15. On the future of controllable fluid film bearings

    DEFF Research Database (Denmark)

    Santos, Ilmar

    2011-01-01

    lubrication regimes, i.e., as tilting-pad journal bearings, multi-recess journal bearings and plain journal bearings. After a comprehensive overview of the theoretical and experimental technological advancements achieved in university laboratories, the feasibility of industrial applications is highlighted......This work gives an overview of the theoretical and experimental achievements of mechatronics applied to fluid film bearings. Compressible and uncompressible fluids are addressed. Rigid and elastic (deformable) bearing profiles are investigated. Hydraulic, pneumatic, magnetic and piezoelectric...

  16. Journal of Earth System Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science. D S V V D Prasad. Articles written in Journal of Earth System Science. Volume 114 Issue 4 August 2005 pp 437-441. Geomagnetic activity control on VHF scintillations over an Indian low latitude station, Waltair (17.7°N, 83.3°E, 20°N dip) · D S V V D Prasad P V S Rama Rao ...

  17. African Journals Online: Swaziland

    African Journals Online (AJOL)

    The journal publishes research papers, case studies, essays and review articles as well as first hand experiences in soil, plant, water and animal sciences, natural resources management, home economics and nutrition, and other related areas of relevance to the Southern African Development Community (SADC) region in ...

  18. Journal of Cultural Studies

    African Journals Online (AJOL)

    The Journal of Cultural Studies was established in 1999 as an independent tool for research development in Africa. It is published by the Nigerian Group for the Study of African ... Sexual Harassment in the Workplace: A Case for Linguistic and Sexual Politics? EMAIL FULL TEXT EMAIL FULL TEXT DOWNLOAD FULL TEXT ...

  19. African Journals Online: Philosophy

    African Journals Online (AJOL)

    Items 1 - 7 of 7 ... ... publish their research works on all aspects of religions. It seeks to promote critical research and original scholarship on issues related to all aspects of religion generally – theoretical, empirical or comparative. Other websites related to this journal: http://www.unilorin.edu.ng/ejournals/index.php/ijourel/index.

  20. East African Medical Journal

    African Journals Online (AJOL)

    The East African Medical Journal is intended for publication of papers on ... research on problems relevant to East Africa and other African countries will receive special ... Analysis of survival patterns of TB‐HIV co‐infected patients in relation to ...