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Sample records for teigensaseru stud haichi

  1. Reactor vessel stud tensioner

    International Nuclear Information System (INIS)

    Malandra, L.J.; Beer, R.W.; Salton, R.B.; Spiegelman, S.R.; Cognevich, M.L.

    1982-01-01

    A quick-acting stud tensioner, for facilitating the loosening or tightening of a stud nut on a reactor vessel stud, has gripper jaws which when the tensioner is lowered into engagement with the upper end of the stud are moved inwards to grip the upper end and which when the tensioner is lifted move outward to release the upper end. (author)

  2. Stud manipulating device

    International Nuclear Information System (INIS)

    Bunyan, T.W.

    1980-01-01

    A device for inserting and removing studs from bores in a workpiece, for example a nuclear reactor vessel, comprises manipulating devices for operating on individual studs, each capable of tensioning a stud slackening a working nut on the stud, and subsequently removing the stud from the bore. A ring has dogs which can engage working nut recesses to interlock with the nut against relative rotation. Motors coupled to the ring rotate the working nut. A top nut is coupled to the motors to rotate the nut and screw it onto the stud. The top nut with other device parts can be raised and lowered on a tube by a hydraulic actuator. A hydraulic load cell between the top nut and a stool on the workpiece is pressurised to tension the stud by means of the top nut and thus facilitate rotation of the working nut when tightening or slackening. A dog clutch mechanism engages a stud end fitting against relative axial and rotational movement. The mechanism is raised and lowered on a guide member by an actuator. The mechanism has a tubular member and the drive coupling for the motors to the top nut includes a tubular member. Tubular members carry teeth which are engaged when the top nut is raised and the clutch mechanism is lowered, to provide a coupling between the motors and the mechanism for rotating the stud. (U.K.)

  3. Can electronic stability control replace studded tyres?

    DEFF Research Database (Denmark)

    Elvik, Rune

    2015-01-01

    Highlights • Electronic stability control can substitute studded tyres. • This makes it easier to discourage the use of studded tyres. • A certain level of use of studded tyres makes roads less slippery.......Highlights • Electronic stability control can substitute studded tyres. • This makes it easier to discourage the use of studded tyres. • A certain level of use of studded tyres makes roads less slippery....

  4. Stud bolt handling equipment for reactor vessel

    International Nuclear Information System (INIS)

    Bunyan, T.W.

    1989-01-01

    Reactor vessel stud bolt handling equipment includes means for transferring a stud bolt to a carrier from a parking station, or vice versa. Preferably a number of stud bolts are handled simultaneously. The transfer means may include cross arms rotatable about extendable columns, and the equipment is mounted on a mobile base for movement into and out of position. Each carrier comprises a tubular socket and an expandable sleeve to grip a stud bolt. (author)

  5. Special servicing equipment for reactor pressurized vessel stud hole and stud accessories

    International Nuclear Information System (INIS)

    Li Jianglian

    1999-01-01

    The author briefly introduces the design and manufacture of nuclear island special servicing equipment of Nuclear Power Institute of China. Maintenance process of reactor pressurized vessel (RPV) stud hold and stud accessories the special servicing equipment include RPV flange dummy, closed-circuit television (CCTV) inspection equipment, RPV stud hole expandable comb, RPV stud hole polisher, RPV stud hold thread lubricating equipment, RPV stud hole thread miller and RPV stud hole camera. It is presented how eight kinds of special servicing equipment perform the maintenance process concerning their function, structure, and characteristics, their practical use on site is also introduced

  6. Behaviour of Corroded Single Stud Shear Connectors

    Directory of Open Access Journals (Sweden)

    Wen Xue

    2017-03-01

    Full Text Available In this study, the effect of corrosion on the static behavior of stud shear connectors was investigated. An innovative test setup for single stud shear connectors was designed and established. Two series of specimens having different stud diameters were fabricated and tested. The test specimens were firstly corroded to different corrosion rates by the electronic accelerating method. Static loading tests were then performed to obtain the load-slip curves and ultimate strengths of the corroded test specimens. The actual corrosion rates were measured from the studs obtained from the tested specimens. The test results were compared with the push out test specimens having similar corrosion rates. It is shown that the test results obtained from the single stud shear connectors are conservative compared with the corroded push test specimens, which prove the validation of the single stud shear connector test method. The effect of corrosion on the behavior of stud shear connectors was also presented.

  7. Reactor vessel closure stud cleaning machine

    International Nuclear Information System (INIS)

    Wennerstrom, E.A.; Brown, J.S.; Milligan, W.E.

    1979-01-01

    A stud cleaning machine whereby the threaded portion of very large studs can be cleaned to a semi-bright finish. The cleaning machine is designed to completely enclose the studs during the cleaning operation, so that none of the loosened oxides, residues, and caked lubricants are discharged into the surrounding atmosphere. The contaminated particles are retained in the cleaning machine and removed through an attached vacuum cleaner. 3 claims

  8. Straight studs from southern pine veneer cores and cordwood

    Science.gov (United States)

    Peter Koch

    1968-01-01

    An economically feasible system has been developed for converting southern pine veneer cores into straight 8-foot studs (2). Prototype studs - two per core - were 100 percent SPIB stud grade and better.

  9. A Synthesis on the Evolution of the Studded Tire

    National Research Council Canada - National Science Library

    Angerinos, Michael

    1998-01-01

    Ever since studded tires were flrst introduced, the advantages, disadvantages, and effects of studded tires on vehicles, drivers and pavement systems has been the center of research and controversy...

  10. Monitoring of Double Stud Wall Moisture Conditions in the Northeast

    Energy Technology Data Exchange (ETDEWEB)

    Ueno, K. [Building Science Corporation, Westford, MA (United States)

    2015-03-01

    Double-stud walls insulated with cellulose or low-density spray foam can have R-values of 40 or higher. However, double stud walls have a higher risk of interior-sourced condensation moisture damage, when compared with high-R approaches using exterior insulating sheathing.; Moisture conditions in double stud walls were monitored in Zone 5A (Massachusetts); three double stud assemblies were compared.

  11. In-situ testing of BWR closure head studs

    International Nuclear Information System (INIS)

    deRaad, J.A.; Wolters, J.T.

    1988-01-01

    Mechanized ultrasonic inspection of closure head studs often is on the critical path. In German BWR's, a floodcompensator is used which allows human access to the studs despite the water is up to a much higher level. For stud inspection this provides a potential solution to get out of the critical path. However, the space restrictions around the studs due to the geometry of the floodcompensator did not allow the use of the existing manipulators. This paper describes the design of a dedicated compact manipulator of a construction which copes with the restricted space available around the studs

  12. Reactor pressure vessel stud management automation strategies

    International Nuclear Information System (INIS)

    Biach, W.L.; Hill, R.; Hung, K.

    1992-01-01

    The adoption of hydraulic tensioner technology as the standard for bolting and unbolting the reactor pressure vessel (RPV) head 35 yr ago represented an incredible commitment to new technology, but the existing technology was so primitive as to be clearly unacceptable. Today, a variety of approaches for improvement make the decision more difficult. Automation in existing installations must meet complex physical, logistic, and financial parameters while addressing the demands of reduced exposure, reduced critical path, and extended plant life. There are two generic approaches to providing automated RPV stud engagement and disengagement: the multiple stud tensioner and automated individual tools. A variation of the latter would include the handling system. Each has its benefits and liabilities

  13. Failure Analysis of Main Flame Deflector Nelson Studs

    Science.gov (United States)

    Long, Victoria

    2009-01-01

    NASA Structures engineers submitted two Nelson refractory studs from the main flame deflector at Launch Complex (LC) 39 A for analysis when they were observed to be missing a significant amount of material after launch. The damaged stud and an unused comparative stud were analyzed by macroscopic and microscopic examination along with metallographic evaluation of the microstructure. The stud lost material due to a combination of erosion and corrosion. Plain carbon steel readily forms an oxide layer in the coastal launch environment at Kennedy Space Center. The blast during a launch removes this brittle oxide layer, which then forms again post-launch, thereby further removing material. No indications of melting were observed.

  14. Straight studs are produced from southern pine cordwood

    Science.gov (United States)

    Peter Koch

    1967-01-01

    A Process for converting southern pine veneer cores into 8-foot 2 by 4's of SPIB Stud grade and better has been developed at the Alexandria, Louisiana, Utilization Laboratory of the Southern Forest Experiment Station. The research leading to this development suggests that a similiar process would be practical for converting 8-foot southern pine cordwood into studs...

  15. Design Procedure on Stud Bolt for Reactor Vessel Assembly

    International Nuclear Information System (INIS)

    Kim, Jong-Wook; Lee, Gyu-Mahn; Jeoung, Kyeong-Hoon; Kim, Tae-Wan; Park, Keun-Bae; Kim, Keung-Koo

    2008-10-01

    The reactor pressure vessel flange is welded to the upper part of reactor pressure vessel, and there are stud holes to mount the closure head with stud bolts. The surface mating the closure head is compressed with O-ring, which acts as a sealing gasket to prevent coolant leakage. Bolted flange connections perform a very important structural role in the design of a reactor pressure vessel. Their importance stems from two important functions: (a) maintenance of the structural integrity of the connection itself, and (b) prevention of leakage through the O-ring preloaded by stud bolts. In the present study, an evaluation procedure for the design of stud bolt is developed to meet ASME code requirements. The developed design procedure could provide typical references in the development of advanced reactor design in the future

  16. Welding studs detection based on line structured light

    Science.gov (United States)

    Geng, Lei; Wang, Jia; Wang, Wen; Xiao, Zhitao

    2018-01-01

    The quality of welding studs is significant for installation and localization of components of car in the process of automobile general assembly. A welding stud detection method based on line structured light is proposed. Firstly, the adaptive threshold is designed to calculate the binary images. Then, the light stripes of the image are extracted after skeleton line extraction and morphological filtering. The direction vector of the main light stripe is calculated using the length of the light stripe. Finally, the gray projections along the orientation of the main light stripe and the vertical orientation of the main light stripe are computed to obtain curves of gray projection, which are used to detect the studs. Experimental results demonstrate that the error rate of proposed method is lower than 0.1%, which is applied for automobile manufacturing.

  17. Monitoring of Double-Stud Wall Moisture Conditions in the Northeast

    Energy Technology Data Exchange (ETDEWEB)

    Ueno, K. [Building Science Corporation, Westford, MA (United States)

    2015-03-01

    Double-stud walls insulated with cellulose or low-density spray foam can have R-values of 40 or higher. However, double-stud walls have a higher risk of interior-sourced condensation moisture damage when compared with high-R approaches using exterior insulating sheathing. Moisture conditions in double-stud walls were monitored in Zone 5A (Massachusetts); three double-stud assemblies were compared.

  18. Inbreeding in the Elsenburg Dormer sheep stud | van Wyk | South ...

    African Journals Online (AJOL)

    Data of the Elsenburg Dormer sheep stud which was kept closed since its inception, were collected over a period of 50 years (1941-1990). These data were analysed to monitor the increase in actual level of inbreeding and to investigate the effect of inbreeding on some early growth and reproduction traits. In total, 9 551 ...

  19. Time-Grating for the Generation of STUD Pulse Trains

    Science.gov (United States)

    Zheng, Jun; Wang, Shi-Wei; Xu, Jian-Qiu

    2013-04-01

    Spike train of uneven duration or delay (STUD) pulses hold potential for laser-plasma interaction (LPI) control in laser fusion. The technique based on time grating is applied to generate an STUD pulse train. Time grating, a temporal analogy of the diffraction grating, can control the pulse width, shape, and repetition rate easily through the use of electro-optical devices. The pulse width and repetition rate are given by the modulation frequency and depth of the phase modulation function in theory and numerical calculation. The zero-chirped phase modulation is good for the compression effect of the time grating. A principle experiment of two pulses interfering is shown to verify the time grating function.

  20. Drawn arc stud welding: Crossing over from steel to aluminum

    Energy Technology Data Exchange (ETDEWEB)

    Ramasamy, S.

    2000-01-01

    In their quest to reduce vehicle weights, car manufacturers are exploring further use of aluminum, including more aluminum components in body construction. To acquire a better understanding of aluminum stud welding, auto manufacturers worldwide have formed a task force to conduct research on aluminum joining methods. Currently, Emhart Fastening Teknologies is working with this group in development programs such as Earthing studs, WELDFAST and Self-Pierce Rivet (SPR). The global automotive industry is clearly committed to the increased use of aluminum in cars and trucks. This presents enormous challenges and responsibilities for assembly systems suppliers, particularly those specializing in welding processes. Continuing strides in the technological sophistication of DASW is bringing this process to the forefront in advancing the use of aluminum in vehicles throughout the world.

  1. Modelling and use of the STUDS nuclear power plant simulator

    International Nuclear Information System (INIS)

    Blomberg, P.E.; Espefaelt, R.; Josefsson, R.; Schuch, N.

    1979-02-01

    The simulator models, belonging to the STUDS-family, which have been developed at Studsvik in cooperation with the Swedish utilities, are briefly described. The scope of the simulation is presented and the fundamental equations used are indicated. Different needs have led to a number of STUDS-versions for BWR and PWR type plants, primarily intended for application in the following fields: 1) transient analysis, 2) system design verification, 3) control system development, 4) testing of new on-line techniques for disturbance analysis, noise analysis, man-machine communication, etc, 5) training of power plant operators, 6) operational planning. The simulator was initially implemented on a hybrid computer system but more recent work has led to pure digital simulations maintaining the real time feature and adding features like snapshot and backtrack. The latest version for PWR is used at the Halden Project and in the general purpose COMPACT SIMULATOR: developed at Studsvik and made commercially available. (author)

  2. Between-flock genetic differences in 40 Merino studs | Poggenpoel ...

    African Journals Online (AJOL)

    Breeding values of production traits, relative to a genetic control flock, were estimated for 40 registered Merino studs. Breeding values, expressed as a percentage deviation from the control flock, varied from -16.7 to 31.2 for body mass, --6.4 to 28.1 for clean fleece mass and -3.7 to 13.2 for fibre diameter. The results indicate ...

  3. Modern French Studding of the Biographical Texts: Prolegomena

    OpenAIRE

    Hromyk, Alina

    2014-01-01

    The article deals with the main directions of the studding of the biography as a text in the modern French humanities. We described the structural and the functional peculiarities of the biographical text (discourse), particularly based on the fictional biography. It is stressed on the terminology, which is used by scientists not only literary and interdisciplinary studies, particularly “fictionality”, “biofiction”, “fictional biography”. Attention is given to agents of the works and of the n...

  4. Reduction of Biomechanical and Welding Fume Exposures in Stud Welding.

    Science.gov (United States)

    Fethke, Nathan B; Peters, Thomas M; Leonard, Stephanie; Metwali, Mahmoud; Mudunkotuwa, Imali A

    2016-04-01

    The welding of shear stud connectors to structural steel in construction requires a prolonged stooped posture that exposes ironworkers to biomechanical and welding fume hazards. In this study, biomechanical and welding fume exposures during stud welding using conventional methods were compared to exposures associated with use of a prototype system that allowed participants to weld from an upright position. The effect of base material (i.e. bare structural beam versus galvanized decking) on welding fume concentration (particle number and mass), particle size distribution, and particle composition was also explored. Thirty participants completed a series of stud welding simulations in a local apprenticeship training facility. Use of the upright system was associated with substantial reductions in trunk inclination and the activity levels of several muscle groups. Inhalable mass concentrations of welding fume (averaged over ~18 min) when using conventional methods were high (18.2 mg m(-3) for bare beam; 65.7 mg m(-3) for through deck), with estimated mass concentrations of iron (7.8 mg m(-3) for bare beam; 15.8 mg m(-3) for through deck), zinc (0.2 mg m(-3) for bare beam; 15.8 mg m(-3) for through deck), and manganese (0.9 mg m(-3) for bare beam; 1.5 mg m(-3) for through deck) often exceeding the American Conference of Governmental Industrial Hygienists Threshold Limit Values (TLVs). Number and mass concentrations were substantially reduced when using the upright system, although the total inhalable mass concentration remained above the TLV when welding through decking. The average diameters of the welding fume particles for both bare beam (31±17 nm) through deck conditions (34±34 nm) and the chemical composition of the particles indicated the presence of metallic nanoparticles. Stud welding exposes ironworkers to potentially high levels of biomechanical loading (primarily to the low back) and welding fume. The upright system used in this study improved exposure

  5. Stud Reinforcement in Beam-Column Joints under Seismic Loads

    Science.gov (United States)

    Ibrahim, Hatem Hassan Ali

    Current codes recommend large amounts of shear reinforcement for reinforced concrete beam-column joints causing significant congestion. This research aims at investigating experimentally and numerically the efficiency of using studs with a head at each end in lieu of conventional closed hoops in reinforced concrete beam-column joints. The proposed reinforcement reduces congestion and ensures easier assembly of the reinforcing cage, saving labour cost and enhancing performance of the joint. Based on this research, a recommended arrangement and detailing of headed studs and their design for exterior beam-column joint are presented. The experimental investigation consisted of testing ten full-scale beam-column joint specimens under quasi-static cyclic loading. The specimens represented an exterior beam-column joint subassembly isolated at the points of contra-flexure from a typical multi-storey, multi-bay reinforced concrete frame. A test setup was developed to simulate the lateral inter-storey drift. The test parameters included: the type, arrangement and amount of shear reinforcement, the load history and rate of loading, and the amount of reinforcement for out-of-plane confinement of the joint. Envelopes of the hysteretic behaviour of the specimens and the joint deformation under shear stress are presented. The stiffness degradation, the strain levels in the joint reinforcement, the contribution of joint, beam, and column to the inter-storey drift, and the energy dissipation were compared. All the test specimens reinforced with headed studs in the joint achieved considerable enhancement in their behaviour under cyclic loads and exhibited a performance close to that of a joint reinforced with closed hoops and cross ties according to the code. All the specimens with adequate out-of-plane confinement had an equivalent behaviour compared with the code-based specimen and achieved a desirable mode of failure. Use of double-headed studs proved to be a viable option for

  6. Joint and column behaviour of slotted cold-formed steel studs

    DEFF Research Database (Denmark)

    Andreassen, Michael Joachim; Jönsson, Jeppe

    2015-01-01

    the behaviour of the studs and the track joints. The experiments include a joint design with a special web stiffener used in practice. The studs are made of C-profiles and the tracks of U-profiles. Eight different test series are performed. The test series each have different column lengths, thicknesses...

  7. Joint and column behaviour of slotted cold-formed steel studs

    DEFF Research Database (Denmark)

    Andreassen, Michael Joachim; Jönsson, Jeppe

    2015-01-01

    the behaviour of the studs and the track joints. The experiments included a joint design with a special web stiffener used in practice. The studs were C-sections and the tracks were U-sections. Eight different test series were performed. Each test series had different column lengths and thicknesses, both...

  8. Building America Case Study: Monitoring of Double Stud Wall Moisture Conditions in the Northeast, Devens, Massachusetts (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2015-03-01

    Double-stud walls insulated with cellulose or low-density spray foam can have R-values of 40 or higher. However, double stud walls have a higher risk of interior-sourced condensation moisture damage, when compared with high-R approaches using exterior insulating sheathing. Moisture conditions in double stud walls were monitored in Zone 5A (Massachusetts); three double stud assemblies were compared.

  9. The corrosion resistance of materials used for the manufacture of ear piercing studs

    International Nuclear Information System (INIS)

    Correa, O. V.; Saiki, M.; Rogero, S. O.; Costa, I.

    2003-01-01

    Nickel containing alloy shave been widely used as substrates for the manufacture of studs used for ear piercing. Unfortunately, nickel has also been related to the development of allergic contact dermatitis caused by skin sensitization due to Ni''2+ ions. Nickel ions can be leached out into the body fluids due to corrosion reactions. Defect free coatings are very difficult to produce, and therefore nickel free materials should be used as substrates of ear piercing studs, although the commercial alloys used usually contain this element. In this study, the corrosion resistance of two kinds of commercial studs prepared with nickel containing substrates and a titanium laboratory made stud was determined in a culture medium. The corrosion resistance of the studs was investigated by means of potentiodynamic polarization tests and electrochemical impedance spectroscopy as a function of immersion time in the culture medium. The elements that leached out into the medium due to corrosion reactions were analyzed by instrumental neutron activation analysis. The surfaces of the commercial gold-coated studs were examined by scanning electron microscopy and analyzed by energy dispersive spectroscopy, both before and after exposure to the culture medium. The cytotoxicity of the tested studs was also determined in the culture medium. (Author) 10 refs

  10. Detection of cracks in stud bolts of nuclear reactor by novel ultrasonic technique

    International Nuclear Information System (INIS)

    Oh, W.D.; Lee, J.H.; Choi, S.W.; Park, M.H.

    2004-01-01

    The stud bolt is one of the most critical parts for the safety of reactor vessels in nuclear power plants. However, in the practical application of ultrasonic technique for crack detection in stud bolt, the classification of crack signal from the signals reflected from threads in stud bolt is very difficult. In this study, shadow effect technique combined with new signal processing method has been investigated to enhance the detectability of small crack initiated from root of thread in stud bolt. The key idea of new signal processing concept is based on the fact that the shape of waveforms from the threads is uniform since the shape of the threads in a bolt is same. If some cracks exist in the thread, the flaw signals are different from the reference signals. It has shown that the small flaws can be effectively detected by novel ultrasonic technique combined with this new signal processing concept. (orig.)

  11. Fastener Demands for Sheathing-Braced Cold-Formed Steel Stud Gravity Walls

    Directory of Open Access Journals (Sweden)

    Luiz Carlos M. Vieira Junior

    Full Text Available Abstract We explore, in this paper, the demands and behavior on fasteners supplying sheathing-based bracing of gravity loaded cold-formed studs and wall assemblies. The studies are carried out by shell finite element (FE models, which are compared to analytical solutions and previously completed laboratory tests conducted by the authors. The connection between the sheathing and the stud should be able to develop enough resistance to restrain global buckling of the studs; therefore, special attention has to be given to the demands on these connections for design. Local buckling and stress concentrations may damage some connections and redistribution of forces should be ensured. Classical practice for determining fastener demand - i.e., the 2% rule - may be deficient. An analytical method developed for determining fastener demand is compared to the FE models presented in this paper; the analytical method results in a reasonable prediction of the fastener forces in wall studs.

  12. Study on Shear Performance of Cold-formed Steel Composite Wall with New Type of stud

    Science.gov (United States)

    Wang, Chungang; Yue, Sizhe; Liu, Hong; Zhang, Zhuangnan

    2018-03-01

    The shear resistance of single oriented-strand board wall and single gypsum board wall can be improved in different degrees by increasing strength of steel. The experimental data of literatures were used, and the test specimens had been simulated and validated by ABAQUS finite element analysis. According to the research, it showed that the compressive bearing capacity of the new stud composite wall was much better than the common stud composite wall, so the establishment and research of all models had been based on the new section stud. The analysis results show that when using new type of stud the shear resistance of the single oriented-strand board wall can be improved efficiently by increasing strength of steel, but the shear resistance of the single gypsum wall can be increased little.

  13. Technology Solutions Case Study: Monitoring of Double Stud Wall Moisture Conditions in the Northeast, Devens, Massachusetts

    Energy Technology Data Exchange (ETDEWEB)

    None

    2015-03-01

    Double stud walls have a higher risk of interior-sourced condensation moisture damage when compared with high-R approaches using exterior insulating sheathing. In this project, Building Science Corporation monitored moisture conditions in double-stud walls from 2011 through 2014 at a new production house located in Devens, Massachusetts. The builder, Transformations, Inc., has been using double-stud walls insulated with 12 in. of open cell polyurethane spray foam (ocSPF); however, the company has been considering a change to netted and blown cellulose insulation for cost reasons. Cellulose is a common choice for double-stud walls because of its lower cost (in most markets). However, cellulose is an air-permeable insulation, unlike spray foams, which increases interior moisture risks. The team compared three double-stud assemblies: 12 in. of ocSPF, 12 in. of cellulose, and 5-½ in. of ocSPF at the exterior of a double-stud wall (to approximate conventional 2 × 6 wall construction and insulation levels, acting as a control wall). These assemblies were repeated on the north and south orientations, for a total of six assemblies.

  14. Studded and unstudded winter tires in fatal road accidents in Finland.

    Science.gov (United States)

    Malmivuo, Mikko; Luoma, Juha; Porthin, Markus

    2017-07-04

    The aim of the study was to compare the safety effects of studded and unstudded winter tires based on fatal road accidents. The data included 958 road accidents involving a passenger car or van that occurred in Finland from November to March between 1997 and 2012. Comparing the proportions of winter tire type in accidents and in general traffic showed that the overall effect of tire type on the number of accidents was not significant, although studded tires reduced fatal accidents by 10-15%. Compared to unstudded tires, studded tires reduced accidents significantly only on bald ice in 2005-2012. Drivers using unstudded tires were more experienced and their profession was more frequently related to driving. In addition, the vehicle age was lower for vehicles with unstudded tires. On the other hand, the state of repair was less pertinent for unstudded than for studded tires. These confounding factors offset their effects to some degree. The risk of fatal road accidents in winter between studded and unstudded tires does not differ significantly. However, the accident risk has recently been substantially higher on bald ice for unstudded than for studded tires. The magnitude of this risk difference is difficult to determine without specific information on exposure by road surface.

  15. Finite element based simulation on friction stud welding of metal matrix composites to steel

    Science.gov (United States)

    Hynes, N. Rajesh Jesudoss; Tharmaraj, R.; Velu, P. Shenbaga; Kumar, R.

    2016-05-01

    Friction welding is a solid state joining technique used for joining similar and dissimilar materials with high integrity. This new technique is being successfully applied to the aerospace, automobile, and ship building industries, and is attracting more and more research interest. The quality of Friction Stud Welded joints depends on the frictional heat generated at the interface. Hence, thermal analysis on friction stud welding of stainless steel (AISI 304) and aluminium silicon carbide (AlSiC) combination is carried out in the present work. In this study, numerical simulation is carried out using ANSYS software and the temperature profiles are predicted at various increments of time. The developed numerical model is found to be adequate to predict temperature distribution of friction stud weld aluminium silicon carbide/stainless steel joints.

  16. Investigation of Shear Stud Performance in Flat Plate Using Finite Element Analysis

    Directory of Open Access Journals (Sweden)

    T.S. Viswanathan

    2014-09-01

    Full Text Available Three types of shear stud arrangement, respectively featuring an orthogonal, a radial and a critical perimeter pattern, were evaluated numerically. A numerical investigation was conducted using the finite element software ABAQUS to evaluate their ability to resist punching shear in a flat plate. The finite element analysis here is an application of the nonlinear analysis of reinforced concrete structures using three-dimensional solid finite elements. The nonlinear characteristics of concrete were achieved by employing the concrete damaged plasticity model in the finite element program. Transverse shear stress was evaluated using finite element analysis in terms of shear stress distribution for flat plate with and without shear stud reinforcement. The model predicted that shear studs placed along the critical perimeter are more effective compared to orthogonal and radial patterns.

  17. Studs and protest-hypermasculinity: the tomboyism within black lesbian female masculinity.

    Science.gov (United States)

    Lane-Steele, Laura

    2011-01-01

    In this article, I use the ethnographic work I conducted in the summer of 2009 with Black lesbian women from South Carolina to show how Black female masculinity has been influenced by historically based constructions of Black gender. I will argue that these studs strategically construct and perform their masculinity in ways that shield them from sexism, racism, and homophobia both in and out of their Black community. By adopting the particular type of masculinity common among their Black male peers, these studs can gain access to some levels of male privilege and power which, in turn, can act as useful defense mechanisms against multiple types of discrimination and oppression.

  18. Measure Guideline: Deep Energy Enclosure Retrofit for Double-Stud Walls

    Energy Technology Data Exchange (ETDEWEB)

    Loomis, H. [Building Science Corporation, Westford, MA (United States); Pettit, B. [Building Science Corporation, Westford, MA (United States)

    2015-06-01

    This Measure Guideline describes a deep energy enclosure retrofit (DEER) solution that provides insulation to the interior of the wall assembly with the use of a double stud wall. The guide describes two approaches to retrofitting the existing the walls: one involving replacement of the existing cladding, and the other that leaves the existing cladding in place. It discusses the design principles related to the use of various insulation types, and provides strategies and procedures for implementing the double stud wall retrofit. It also evaluates important moisture-related and indoor air quality measures that need to be implemented to achieve a durable, high performance wall.

  19. Measure Guideline: Deep Energy Enclosure Retrofit for Double-Stud Walls

    Energy Technology Data Exchange (ETDEWEB)

    Loomis, H. [Building Science Corporation, Westford, MA (United States); Pettit, B. [Building Science Corporation, Westford, MA (United States)

    2015-06-22

    This Measure Guideline describes a deep energy enclosure retrofit solution that provides insulation to the interior of the wall assembly with the use of a double-stud wall. The guide describes two approaches to retrofitting the existing walls—one that involves replacing the existing cladding and the other that leaves the cladding in place. This guideline also covers the design principles related to the use of various insulation types and provides strategies and procedures for implementing the double-stud wall retrofit. It also includes an evaluation of important moisture-related and indoor air quality measures that need to be implemented to achieve a durable high-performance wall.

  20. Modelling road dust emission abatement measures using the NORTRIP model: Vehicle speed and studded tyre reduction

    Science.gov (United States)

    Norman, M.; Sundvor, I.; Denby, B. R.; Johansson, C.; Gustafsson, M.; Blomqvist, G.; Janhäll, S.

    2016-06-01

    Road dust emissions in Nordic countries still remain a significant contributor to PM10 concentrations mainly due to the use of studded tyres. A number of measures have been introduced in these countries in order to reduce road dust emissions. These include speed reductions, reductions in studded tyre use, dust binding and road cleaning. Implementation of such measures can be costly and some confidence in the impact of the measures is required to weigh the costs against the benefits. Modelling tools are thus required that can predict the impact of these measures. In this paper the NORTRIP road dust emission model is used to simulate real world abatement measures that have been carried out in Oslo and Stockholm. In Oslo both vehicle speed and studded tyre share reductions occurred over a period from 2004 to 2006 on a major arterial road, RV4. In Stockholm a studded tyre ban on Hornsgatan in 2010 saw a significant reduction in studded tyre share together with a reduction in traffic volume. The model is found to correctly simulate the impact of these measures on the PM10 concentrations when compared to available kerbside measurement data. Importantly meteorology can have a significant impact on the concentrations through both surface and dispersion conditions. The first year after the implementation of the speed reduction on RV4 was much drier than the previous year, resulting in higher mean concentrations than expected. The following year was much wetter with significant rain and snow fall leading to wet or frozen road surfaces for 83% of the four month study period. This significantly reduced the net PM10 concentrations, by 58%, compared to the expected values if meteorological conditions had been similar to the previous years. In the years following the studded tyre ban on Hornsgatan road wear production through studded tyres decreased by 72%, due to a combination of reduced traffic volume and reduced studded tyre share. However, after accounting for exhaust

  1. Effects of herd origin, AI stud and sire identification on genetic evaluation of Holstein Friesian bulls

    OpenAIRE

    Giovanni Bittante; Paolo Carnier; Luigi Gallo Gallo; Riccardo Dal Zotto; Martino Cassandro

    2010-01-01

    The purpose of this study was to estimate the effects of herd origin of bull, AI stud and sire identification number (ID)  on official estimated breeding values (EBV) for production traits of Holstein Friesian proven bulls. The data included 1,005  Italian Holstein-Friesian bulls, sons of 76 sires, born in 100 herds and progeny tested by 10 AI studs. Bulls were required  to have date of first proof between September 1992 and September 1997, to be born in a herd with at least on...

  2. Causes of Failure of High-Tensile Stud Bolts Used for Joining Metal Parts of Tower Crane

    Science.gov (United States)

    Tingaev, A. K.; Gubaydulin, R. G.; Shaburova, N. A.

    2017-11-01

    The causes of the failure of a high-tensile stud 2M48-6gx500 10.9 made from steel grade 30HGSA which led to a temporary inoperability of a tower crane were investigated. The bolts were used to assemble the tower sections and collapsed after 45 days from the moment the crane was commissioned. The cracks in the fracture are identified as fatigue with the characteristic sites of nucleation, sustainable development and static dolomite. To determine the possible causes of stud bolts destruction, metallographic, durometric and mechanical tests were carried out from which it follows that the stud bolt material in its original state corresponded to the delivery conditions. The destruction of the stud bolt appears to have resulted from a combination of several unfavorable factors: uncertainty about the actual tension of the stud bolt due to the lack of information about the magnitude of the twist factor; partial displacement of the centers of the brackets holes and rotation of the stud bolt axis during the sections’ assembly; no tight contact on the support surfaces of the section brackets. All this led to a discrepancy between the actual design of the stud bolt, the appearance of additional forces and the destruction of the stud bolt.

  3. Calcification of intervertebral discs in the dachshund: a radiographic study of 21 stud-dogs

    International Nuclear Information System (INIS)

    Stigen, O.

    1995-01-01

    The vertebral columns of 21 clinically normal, 4.9 to 13.2 year old dachshunds were x-rayed. This sample represented 55.3% of all male dachshunds with 20 or more offspring registered with the Norwegian Kennel Club in the period 1985-1989. Calcified intervertebral discs were identified in 9 (42.9%) of the stud-dogs, and the number of calcified discs in each individual varied from 2 to 5 with a mean of 3.7. The frequency of stud-dogs with 1 or more calcified discs was compared with the corresponding frequency in a material of 327 one-year-old dachshunds. In this comparison, the relative risk was estimated with 95% confidence bounds. When the different composition of size and coat varieties in the 2 materials was not considered, the relative risk of calcified discs was found to be 1.77 (0.99-3.2) times higher in stud-dogs than in young dogs. When the different composition of varieties in the 2 materials was considered, the relative risk was found to be 1.9 (1.1-3.4) times higher in stud-dogs than in young dogs. The results of the present study strongly suggest that an increase in the frequency of dachshunds with 1 or more calcified intervertebral discs occurs after 1 year of age

  4. Effects on accidents of changes in the use of studded tyres in major cities in Norway

    DEFF Research Database (Denmark)

    Elvik, Rune; Fridstrøm, Lasse; Kaminska, Joanna

    2013-01-01

    of negative binomial regression models, using city and day as the unit of analysis, and including more than twenty explanatory variables in order to control for confounding factors. The effects of changes in the percentage of cars using studded tyres were well described by an accident modification function...

  5. Changes in United States Advertising 1976-1986 (a la Studs Terkel).

    Science.gov (United States)

    Jackson, DeForrest; Lamb, Christopher J.

    To examine the most important changes in marketing and advertising of the decade from 1976 to 1986, more than 100 people were interviewed, and their responses were fashioned into an oral history modeled on the technique used in Studs Terkel's popular books. Among those interviewed were advertising and marketing professionals, as well as casual…

  6. Site ultrasonic measurement on RPV stud-bolt loading under hot transient of Qinshan NPP

    International Nuclear Information System (INIS)

    Qu Jiadi; Dou Yikang; Zhu Shiming

    1994-08-01

    It expounds that the key of solving thermal transient sealing problem is to obtain the thermal increment of stud-bolt loading. This loading, as a primary stress loading, is directly related to the bolt fatigue life and transient loading spectrum for vessel analysis. The fundamental works and main results of ultrasonic measurement on RPV stud-bolt loading on Qinshan site are also presented. The measuring capability has exceeded 1 m in length and temperature of 280 degree C, therefore, it is possible to be used in the field of NPP. The paper is the continuation of research work for sealing analysis and tests on the RPV (see SMiRT-9, 10)

  7. Metal-framed partitions with reduced thicknesses. Part 1: Narrower studs and cavities

    Science.gov (United States)

    Plumb, G. D.

    The sound insulations were measured, in the Research Department Transmission Suite, of ten different metal-framed partitions. These partitions had narrower cavities and metal studs than those of the conventional thickness metal-framed Camden. Mineral wool had been installed in the cavities of some of the partitions and some partitions had double plasterboard skins rather than plasterboard-fiberboard skins. The sound insulations of these narrow partitions were generally comparable with, or marginally higher than, those of similar partitions, having stud and cavity widths equal to those in the conventional thickness metal-framed Camden. However, the loadbearing capabilities must be investigated before these narrow partitions can be recommended as alternatives to the conventional thickness metal-framed Camden. The use of these narrow partitions should result in average increases, of approximately 8%, in the available floor areas of typical studios.

  8. Effect of Spot and Stud Welding on ESR 4340 Steel Armor.

    Science.gov (United States)

    1978-02-01

    solid flux were used. For spot welds , AISI 1015 steel sheet 0.058 inch thick and 304 stainless steel sheet 0.075 inch thick were used. Composition of•the...3/8 inch and 1/2 inch. Studs were of AISI 1022 and 304 stainless steels. For each composition, 1/4-inch-diameter and 3/8-inch-diameter studs with...0.007 0.005 0.22 1.90 0.79 0.25 AISI 1015 0.15-0.18 0.30-0.60 0.040 0.050 max max AISI 1022 0.18-0.23 0.7 -1 .0 0.040 0.050 max max 304 S.S. 0.08 max

  9. INFLUENCE OF TEMPERATURE AND RELATIVE HUMIDITY ON THE STUDDED AGARICUS BLAZEI MURRILL MUSHROOM COMPOST

    Directory of Open Access Journals (Sweden)

    Sándor Rózsa

    2017-12-01

    Full Text Available Almond mushroom, Agaricus blazei Murrill, is the so-called secondary saprophyte, developing on partially processed substrate, in which microorganisms reduced complex ligno-cellulose compounds. Numerous authors have shown that due to the similar life cycle in the cultivation of almond mushroom technologies developed for white button mushroom may be applied. However, almond mushroom requires high temperature and high humidity as well as access to light to form fruiting bodies. In Brazil, due to the advantageous climatic conditions this species is frequently grown outdoors; however, in other countries - mainly due to its high temperature requirements - such cultivation system is risky and may only be successful during very warm summers. In this study, we analyzed four kind of compost studded by Agaricus blazei Murrill mushroom mycelium. We recorded every hour the air and compost temperature and the air relative humidity. The best studded compost was the classical, followed by synthetic and then by the mixt compost.

  10. Peak littering and the stud male in relation to virgin and remated female P(SD) mice.

    Science.gov (United States)

    Eveleigh, J R; Gunner, M; Haslam, F

    1979-01-01

    Peak littering occurred on the 22nd day after pairing. The percentage of pregnancies from virgin females increased as the stud males became more experienced; their success with remated females showed a more varied and lower response.

  11. Retention and wear behaviors of two implant overdenture stud-type attachments at different implant angulations.

    Science.gov (United States)

    Choi, Jae-Won; Bae, Ji-Hyeon; Jeong, Chang-Mo; Huh, Jung-Bo

    2017-05-01

    Implant angulation should be considered when selecting an attachment. Some in vitro studies have investigated the relationship between implant angulation and changes in the retention force of the stud attachment, but few studies have evaluated the effect of cyclic loading and repeated cycles of insertion and removal on the stud attachment. The purpose of this in vitro study was to evaluate the effects of implant angulation on the retentive characteristics of overdentures with 2 different stud attachments, an experimental system and O-rings in red and orange, after cyclic loading and repeated insertion and removal cycles. The canine region of a mandibular experimental model was fitted with 2 implant fixtures with 2 different stud attachment systems at implant angulations of 0, 15, or 30 degrees. A mastication simulator was used to simulate cyclic loading, and a universal testing machine was used to evaluate retentive force changes after repeated insertion and removal cycles. To simulate the numbers of mastication and insertion and removal cycles per annum, 400000 cyclic loadings and 1080 insertion and removal cycles were performed. Wear patterns and attachment surface deformations were evaluated by scanning electron microscopy. Data were analyzed using the Kruskal-Wallis test, Mann-Whitney U test with Bonferroni correction (α=.05/3=.017), and the paired-sample Student t test (α=.05). When retentive forces before and after testing were compared, O-ring showed significant retention loss at all implant angulations (P.05), whereas the 30-degree model showed a significant increase in retentive force (P=.001). At all implant angulations, retention loss increased significantly for the orange O-ring, followed by the red O-ring, and the experimental system (Pattachment systems. Even when implants are not installed in parallel, the experimental system can be used without involving great loss of retention. Copyright © 2016 Editorial Council for the Journal of Prosthetic

  12. Application of neutron activation analysis to the corrosion study of gold coated studs used for piercing ears

    International Nuclear Information System (INIS)

    Saiki, M.; Rogero, S.O.; Costa, I.; Correa, O.V.; Higa, O.Z.

    1998-01-01

    Complete text of publication follows. Gold is known as a metal having little or no toxicity and it has been widely used for coating studs for ear piercing. However, for some people gold coated studs have caused serious allergy and inflammation problems. After piercing, the studs are usually kept in the ear lobes for at least one week, and during this period the stud surfaces in contact with the body fluids have caused swelling, pain and redness of the skin. Consequently, it is of great interest to evaluate if elements from the metallic substrate underneath the gold coatings migrate to the body fluids due to the corrosion and the presence of defects in gold coatings. The solutions for corrosion test were obtained by placing the gold coated studs in contact with the solutions of NaCl and of culture medium. Elemental analyses of these solutions by radioanalytical method of neutron activation analysis indicated the occurrence of substrate corrosion since the elements Cr, Fe, Ni and Zn were found in these solutions. These elements are substrate material components of alloys used to make the studs and they were quantified by X-ray fluorescence analysis. The defects of the coatings were also detected by scanning electron microscopy and energy dispersive spectroscopy analysis of the gold coated studs before and after the corrosion tests. Cytotoxicity studies indicated that after corrosion test the solution used was toxic in the culture cell assay. Among the elements quantified in the test solutions, Ni is considered responsible for most of allergic reactions. Results obtained in this work indicated the necessity to improve quality control of the coating process of studs and in the appropriate choice of material used as substrate

  13. High-temperature drying of 7/4 yellow-poplar flitches for S-D-R studs

    Science.gov (United States)

    R. Sidney Boone; Robert R. Maeglin

    1980-01-01

    Yellow-poplar was dried as 7/4 flitches at high temperatures and subsequently ripped into studs to meet National Grading Rule Standards for STUD grade. The effects of growth stresses in these flitches from smaller logs appear to be minimized by this process. Dry bulb temperatures from 235° to 295° F were explored in five drying trials. Best results were by drying for...

  14. Shear Resistance Capacity of Interface of Plate-Studs Connection between CFST Column and RC Beam

    Directory of Open Access Journals (Sweden)

    Qianqian Wang

    2017-01-01

    Full Text Available The combination of a concrete-filled steel tube (CFST column and reinforced concrete (RC beam produces a composite structural system that affords good structural performance, functionality, and workability. The effective transmission of moments and shear forces from the beam to the column is key to the full exploitation of the structural performance. The studs of the composite beam transfer the interfacial shear force between the steel beam and the concrete slab, with the web bearing most of the vertical shear force of the steel beam. In this study, the studs and vertical steel plate were welded to facilitate the transfer of the interfacial shear force between the RC beam and CFST column. Six groups of a total of 18 specimens were used to investigate the shear transfer mechanism and failure mode of the plate-studs connection, which was confirmed to effectively transmit the shear forces between the beam and column. The results of theoretical calculations were also observed to be in good agreement with the experimental measurements.

  15. Analysis of criteria for entry of the austrian warm-blood horse into the stud book

    Directory of Open Access Journals (Sweden)

    Dana Karásková

    2008-01-01

    Full Text Available The focus of the investigation was on an analysis of criteria for the entry of mares of the Austrian warm-blood horse into the stud book and analysis of the pedigree of the mares. The objective of the thesis was to compare the selected properties of the mares based on their pedigree and to evaluate the effect of the Trakehner horse on the frame, type and conformation of the Austrian warm-blood, to ana­ly­se the influence of selected effects on the physique and mechanics of movement on entry into the stud book of the Austrian warm-blood, and to compare selected properties of the mares with the pedigree standard of the Austrian warm-blood. The database was compiled from results of evaluations of the conformation and mechanics of movement on entry into stud books in the period of 1990–2006. The evaluated characteristics were the basic body measurements – height of withers, heart girth, bone, and evaluation of the body conformation on a ten-point scale – head, neck, forehand, middle-piece, quarters, forelegs, hind legs, correctness of pace, walk, mechanics of movement and total mark for conformation. The comparative base consisted of 4407 mares. On the basis of results of subsequent tests we can indicate the pedigree group 1 (pure-bred Trakehner mares as a group which obtained the highest marks for body conformation (head – 7.82, neck – 7.38, middle-piece – 7.46, correctness of pace – 7.27 total mark for conformation – 7.37. We compared the group of mares of the Austrian warm-blood pedigree standard and we discovered that out of the 4407 mares entered into the stud book of the Austrian warm-blood horses in the period of 1990–2006 the height at withers of 65 mares (1.5 % of the monitored population was less than 158 cm, which in the Stud Book Rules is the minimal height for entry.

  16. The corrosion resistance of materials used for the manufacture of ear piercing studs

    Directory of Open Access Journals (Sweden)

    Correa, O. V.

    2003-12-01

    Full Text Available Nickel containing alloys have been widely used as substrates for the manufacture of studs used for ear piercing. Unfortunately, nickel has also been related to the development of allergic contact dermatitis caused by skin sensitization due to Ni2+ ions. Nickel ions can be leached out into the body fluids due to corrosion reactions. Defect free coatings are very difficult to produce, and therefore nickel free materials should be used as substrates of ear piercing studs, although the commercial alloys used usually contain this element. In this study, the corrosion resistance of two kinds of commercial studs prepared with nickel containing substrates and a titanium laboratory made stud was determined in a culture medium. The corrosion resistance of the studs was investigated by means of potentiodynamic polarization tests and electrochemical impedance spectroscopy as a function of immersion time in the culture medium. The elements that leached out into the medium due to corrosion reactions were analyzed by instrumental neutron activation analysis. The surfaces of the commercial gold-coated studs were examined by scanning electron microscopy and analyzed by energy dispersive spectroscopy, both before and after exposure to the culture medium. The cytotoxicity of the tested studs was also determined in the culture medium.

    Aleaciones conteniendo níquel se han utilizado como substratos para la fabricación de aretes perforantes para orejas. Desafortunadamente, el níquel ha sido relacionado con el desarrollo de una reacción alérgica conocida como dermatitis de contacto, causada por la sensibilización debido a los iones de Ni2+. Estos iones pueden ser liberados hacia los fluidos corporales debido a las reacciones de corrosión. Los aretes, habitualmente, se revisten con películas de oro. Sin embargo, es muy difícil hacer los revestimientos libres de defectos superficiales. Por lo tanto, materiales sin níquel deber

  17. Detection of atypical porcine pestivirus in semen from commercial boar studs in the United States.

    Science.gov (United States)

    Gatto, I R H; Arruda, P H; Visek, C A; Victoria, J G; Patterson, A R; Krull, A C; Schwartz, K J; de Oliveira, L G; Arruda, B L

    2018-04-01

    Atypical porcine pestivirus (APPV) has recently been identified as a cause of congenital tremor (CT) in pigs and has been detected in semen and preputial swabs from boars that were known to be clinically affected with CT. Accordingly, the objectives of this study were to 1) detect the presence of APPV in semen, preputial fluids and preputial swabs from adult boars by quantitative reverse transcription PCR (qRT-PCR) and 2) genetically characterize a subset of positive samples to better understand the ecology of APPV in commercial boar studs and the potential risk of transmission of APPV via semen. A total of 597 samples of semen, preputial fluid and preputial swabs each representing a different boar were obtained from four commercial boar studs located in three different states in the United States. Viral RNA was detected by qRT-PCR in 90 samples (15.08%; 90/597), with the greatest per cent positive from preputial swabs (23.81%; 5/21) followed by preputial fluid (22.81%; 26/114) and semen (12.91%; 59/457). The mean cycle quantification (Cq) between sample types was similar while eleven semen samples had Cq values lower than 27.0 corresponding to approximately 2 × 10 6  copies/ml. Based on phylogenetic analysis of the Npro gene, different viral strains can be on the same farm at the same and different times. This is the first report of detection of APPV in semen from commercial boar studs. Studies investigating the role of semen in the transmission of APPV and production of CT are needed. © 2017 Blackwell Verlag GmbH.

  18. Analysis of criteria for entry of the austrian warm-blood horse into the stud book

    OpenAIRE

    Dana Karásková; Iva Jiskrová

    2008-01-01

    The focus of the investigation was on an analysis of criteria for the entry of mares of the Austrian warm-blood horse into the stud book and analysis of the pedigree of the mares. The objective of the thesis was to compare the selected properties of the mares based on their pedigree and to evaluate the effect of the Trakehner horse on the frame, type and conformation of the Austrian warm-blood, to ana­ly­se the influence of selected effects on the physique and mechanics of movement on entry i...

  19. Piecewise Function Hysteretic Model for Cold-Formed Steel Shear Walls with Reinforced End Studs

    Directory of Open Access Journals (Sweden)

    Jihong Ye

    2017-01-01

    Full Text Available Cold-formed steel (CFS shear walls with concrete-filled rectangular steel tube (CFRST columns as end studs can upgrade the performance of mid-rise CFS structures, such as the vertical bearing capacity, anti-overturning ability, shear strength, and fire resistance properties, thereby enhancing the safety of structures. A theoretical hysteretic model is established according to a previous experimental study. This model is described in a simple mathematical form and takes nonlinearity, pinching, strength, and stiffness deterioration into consideration. It was established in two steps: (1 a discrete coordinate method was proposed to determine the load-displacement skeleton curve of the wall, by which governing deformations and their corresponding loads of the hysteretic loops under different loading cases can be obtained; afterwards; (2 a piecewise function was adopted to capture the hysteretic loop relative to each governing deformation, the hysteretic model of the wall was further established, and additional criteria for the dominant parameters of the model were stated. Finally, the hysteretic model was validated by experimental results from other studies. The results show that elastic lateral stiffness Ke and shear capacity Fp are key factors determining the load-displacement skeleton curve of the wall; hysteretic characteristics of the wall with reinforced end studs can be fully reflected by piecewise function hysteretic model, moreover, the model has intuitional expressions with clear physical interpretations for each parameter, paving the way for predicting the nonlinear dynamic responses of mid-rise CFS structures.

  20. Microstructure, Chemical Composition and Local Corrosion Behavior of a Friction Stud Welding Joint

    Science.gov (United States)

    Ma, Huijuan; Gu, Yanhong; Gao, Hui; Jiao, Xiangdong; Che, Juntie; Zeng, Qunfeng

    2018-02-01

    In this paper, friction stud welding technology was used to join a stud and base metal, which were composed of X65 steel. The scanning vibrating electrode technique (SVET) and localized electrochemical impedance spectroscopy (LEIS) were used to investigate the localized corrosion behaviors of the welded joint. Scanning electron microscopy, metallographic microscopy and a micro-hardness tester were used to observe the microstructure and measure the hardness of the welded sample. Raman spectrometry and energy-dispersive spectrometry were used to measure the composition of the weldment before and after corrosion, respectively. The results show that there are the maximum micro-hardness and the densest microstructure in the welded zone compared with the other zones. In addition, α-Fe2O3 and Fe3O4 are present in the welded zone. The SVET and LEIS data indicate that the welded zone has the lowest current density and the largest impedance due to the presence of iron oxides and the densest microstructure, thus showing the excellent corrosion resistance. The relationship among microstructure, micro-hardness, chemical composition and local electrochemical behavior was discussed.

  1. Stud identity among female-born youth of color: joint conceptualizations of gender variance and same-sex sexuality.

    Science.gov (United States)

    Kuper, Laura E; Wright, Laurel; Mustanski, Brian

    2014-01-01

    Little is known about the experiences of individuals who may fall under the umbrella of "transgender" but do not transition medically and/or socially. The impact of the increasingly widespread use of the term "transgender" itself also remains unclear. The authors present narratives from four female-born youth of color who report a history of identifying as a "stud." Through analysis of their processes of identity signification, the authors demonstrate how stud identity fuses aspects of gender and sexuality while providing an alternate way of making meaning of gender variance. As such, this identity has important implications for research and organizing centered on an LGBT-based identity framework.

  2. Application of headed studs in steel fiber reinforced cementitious composite slab of steel beam-column connection

    Science.gov (United States)

    Yao, Cui; Nakashima, Masayoshi

    2012-03-01

    Steel fiber reinforced cementitous composites (SFRCC) is a promising material with high strength in both compression and tension compared with normal concrete. The ductility is also greatly improved because of 6% volume portion of straight steel fibers. A steel beam-column connection with Steel fiber reinforced cementitous composites (SFRCC) slab diaphragms is proposed to overcome the damage caused by the weld. The push-out test results suggested that the application of SFRCC promises larger shear forces transferred through headed studs allocated in a small area in the slab. Finite element models were developed to simulate the behavior of headed studs. The failure mechanism of the grouped arrangement is further discussed based on a series of parametric analysis. In the proposed connection, the SFRCC slab is designed as an exterior diaphragm to transfer the beam flange load to the column face. The headed studs are densely arranged on the beam flange to connect the SFRCC slab diaphragms and steel beams. The seismic performance and failure mechanism of the SFRCC slab diaphragm beam-column connection were investigated based on the cyclic loading test. Beam hinge mechanism was achieved at the end of the SFRCC slab diaphragm by using sufficient studs and appropriate rebars in the SFRCC slab.

  3. Punching resistance of internal slab-column connections with double-headed shear studs

    Directory of Open Access Journals (Sweden)

    M. H. Oliveira

    Full Text Available Punching shear is a brittle failure mode that may occur in slab-column connections, which may be prevented by using shear reinforcement in the slab-column connection. This paper presents comparisons between experimental results of 36 tests in internal slab-column connections with double- headed shear studs, which are largely used in North America, Europe and Asia, with theoretical results using recommendations presented by ACI 318, NBR6118, Eurocode 2 and also the Critical Shear Crack Theory (CSCT.Considering the database used it is possible to observe that ACI 318 presents conservative trends, whereas NBR 6118 showed a low coefficient of variation, but with a large number of unsafe results. Both Eurocode 2 and CSCT showed satisfactory results with Eurocode 2 presenting slightly higher performance.

  4. Common Cause Case Study: An Estimated Probability of Four Solid Rocket Booster Hold-Down Post Stud Hang-ups

    Science.gov (United States)

    Cross, Robert

    2005-01-01

    Until Solid Rocket Motor ignition, the Space Shuttle is mated to the Mobil Launch Platform in part via eight (8) Solid Rocket Booster (SRB) hold-down bolts. The bolts are fractured using redundant pyrotechnics, and are designed to drop through a hold-down post on the Mobile Launch Platform before the Space Shuttle begins movement. The Space Shuttle program has experienced numerous failures where a bolt has hung up. That is, it did not clear the hold-down post before liftoff and was caught by the SRBs. This places an additional structural load on the vehicle that was not included in the original certification requirements. The Space Shuttle is currently being certified to withstand the loads induced by up to three (3) of eight (8) SRB hold-down experiencing a "hang-up". The results of loads analyses performed for (4) stud hang-ups indicate that the internal vehicle loads exceed current structural certification limits at several locations. To determine the risk to the vehicle from four (4) stud hang-ups, the likelihood of the scenario occurring must first be evaluated. Prior to the analysis discussed in this paper, the likelihood of occurrence had been estimated assuming that the stud hang-ups were completely independent events. That is, it was assumed that no common causes or factors existed between the individual stud hang-up events. A review of the data associated with the hang-up events, showed that a common factor (timing skew) was present. This paper summarizes a revised likelihood evaluation performed for the four (4) stud hang-ups case considering that there are common factors associated with the stud hang-ups. The results show that explicitly (i.e. not using standard common cause methodologies such as beta factor or Multiple Greek Letter modeling) taking into account the common factor of timing skew results in an increase in the estimated likelihood of four (4) stud hang-ups of an order of magnitude over the independent failure case.

  5. Effects of two football stud configurations on biomechanical characteristics of single-leg landing and cutting movements on infilled synthetic turf.

    Science.gov (United States)

    Brock, Elizabeth; Zhang, Songning; Milner, Clare; Liu, Xuan; Brosnan, James T; Sorochan, John C

    2014-11-01

    Multiple playing surfaces and footwear used in American football warrant a better understanding of relationship between different combinations of turf and footwear. The purpose of this study was to examine effects of shoe and stud types on ground reaction force (GRF) and ankle and knee kinematics of a 180° cut and a single-leg 90° land-cut on synthetic turf. Fourteen recreational football players performed five trials of the 180° cut and 90° land-cut in three shoe conditions: non-studded running shoe, and football shoe with natural and synthetic turf studs. Variables were analyzed with a 3 × 2 (shoe × movement) repeated measures analysis of variance (p < 0.05). Peak vertical GRF (p < 0.001) and loading rate (p < 0.001) were greater during 90° land-cut than 180° cut. For 180° cut, natural turf studs produced smaller peak medial GRFs compared to synthetic turf studs and non-studded shoe (p = 0.012). For land-cut, peak eversion velocity was reduced in running shoes compared to natural (p = 0.016) and synthetic (p = 0.002) turf studs. The 90° land-cut movement resulted in greater peak vertical GRF and loading rate compared to the 180° cut. Overall, increased GRFs in the 90° land-cut movement may increase the chance of injury.

  6. Comparison of retention and strain energies of stud attachments for implant overdentures.

    Science.gov (United States)

    Petropoulos, Vicki C; Mante, Francis K

    2011-06-01

    The retentive forces and the strain energies absorbed during dislodging of implant overdenture stud attachments are useful parameters to consider in the selection of attachments. The purpose of this study was to compare the retentive forces and strain energies of the Nobel Biocare standard ball, Nobel Biocare newer generation ball (Yorba Linda, CA), Zest Anchor, Zest Anchor Advanced Generation (Escondido, CA), Sterngold-Implamed ERA white, and Sterngold-Implamed orange attachments (Attleboro, MA) on an implant-retained in vitro overdenture model. The attachments were tested using two permanently placed Brånemark system implants on a test model attached to an Instron machine. Each attachment had one part embedded in a denture-like housing, and the other part screwed into the implants. Dislodging tensile forces were applied to the housings in two directions simulating function: vertical and oblique. Eight tests were done in two directions with six specimens of each attachment. Retentive forces generated and strain energies absorbed during displacement were determined. A 1-way ANOVA followed by the Tukey studentized range test was used to determine groups that were significantly different at the p vertical and oblique forces [37.2 (5.5) N and 25.9 (3.2) N, respectively]. The Zest Anchor had the lowest vertical force [10.8 (4.2) N], and Nobel Biocare Standard had the lowest oblique retentive force [10.6 (3.0) N]. The Nobel Biocare Standard Ball attachment had the highest strain energies [29.7 × 10(-3) (11.9 × 10(-3)) J, 30.3 × 10(-3) (14.3 × 10(-3)) J, respectively, in the vertical and oblique directions]. The Sterngold-Implamed ERA White and Zest Anchor had the lowest strain energies [5.3 × 10(-3) (3.2 × 10(-3)) J and 4.5 × 10(-3) (1.1 × 10(-3)) J, respectively, in the vertical and oblique directions]. The retentive forces and strain energies of implant overdenture stud attachments are different and should be considered during prosthesis selection. © 2011 by

  7. Effects of herd origin, AI stud and sire identification on genetic evaluation of Holstein Friesian bulls

    Directory of Open Access Journals (Sweden)

    Giovanni Bittante

    2010-01-01

    Full Text Available The purpose of this study was to estimate the effects of herd origin of bull, AI stud and sire identification number (ID  on official estimated breeding values (EBV for production traits of Holstein Friesian proven bulls. The data included 1,005  Italian Holstein-Friesian bulls, sons of 76 sires, born in 100 herds and progeny tested by 10 AI studs. Bulls were required  to have date of first proof between September 1992 and September 1997, to be born in a herd with at least one other  bull and to have sire and dam with official EBV when bull was selected for progeny testing. Records of sires with only one  son were also discarded. The dependent variable analyzed was the official genetic evaluation for a “quantity and quality  of milk” index (ILQ. The linear model to predict breeding values of bulls included the fixed class effects of herd origin of  bull, AI testing organization, birth year of bull, and estimated breeding values of sire and dam, both as linear covariates.  The R2of the model was 45% and a significant effect was found for genetic merit of sire (P   for herd origin of bull (P   nificant. The range of herd origin effect was 872 kg of ILQ. However, in this study, the causes of this result were not  clear; it may be due to numerous factors, one of which may be preferential treatment on dams of bulls. Analyses of resid-  uals on breeding value of proven bulls for ILQ showed a non significant effect of sire ID, after adjusting for parent aver-  age, herd origin effect and birth year effect. Although the presence of bias in genetic evaluation of dairy bulls is not evi-  dent, further research is recommended firstly to understand the reasons of the significant herd origin effect, secondly to  monitor and guarantee the greatest accuracy and reliability of genetic evaluation procedures. 

  8. Mycotoxins in horse feed: Incidence of deoxynivalenol in oat samples from stud farms

    Directory of Open Access Journals (Sweden)

    Urošević Miroslav I.

    2011-01-01

    Full Text Available Reports concerning mycotoxins in horse feed are very rare and are typically restricted to fumonisins. As a non-ruminant monogastric species, horses may be more sensitive to adverse effects of mycotoxins, but the most severe effect of fumonisin B1 (FB1 in equines is that it causes fatal leucoencephalomalacia. In recent years, the European Food Safety Authority (EFSA has evaluated several mycotoxins as “undesirable substances in animal feed” with the aim of establishing guidance values for the feed industry. In its evaluation of deoxynivalenol (DON, EFSA concluded that this toxin exhibited toxic effects in all species, but that horses were more tolerant towards this toxin than pigs. According to the available data, a systematic survey on mycotoxins in horse feed in Serbia has not been published. Therefore, the aim of this study was to investigate the incidence of mycotoxins in horse feed in Vojvodina. Samples of oats for horse consumption, collected in 2010, were analyzed by enzyme immunoassays (ELISA for deoxynivalenol contamination. Twelve samples of oats were taken from twelve horse studs, with sport, school and hobby horses.

  9. Microstructures and Mechanical Properties of Friction Tapered Stud Overlap Welding for X65 Pipeline Steel Under Wet Conditions

    Science.gov (United States)

    Xu, Y. C.; Jing, H. Y.; Han, Y. D.; Xu, L. Y.

    2017-08-01

    This paper exhibits a novel in situ remediation technique named friction tapered stud overlap welding (FTSOW) to repair a through crack in structures and components in extremely harsh environments. Furthermore, this paper presents variations in process data, including rotational speed, stud displacement, welding force, and torque for a typical FTSOW weld. In the present study, the effects of welding parameters on the microstructures and mechanical properties of the welding joints were investigated. Inapposite welding parameters consisted of low rotational speeds and welding forces, and when utilized, they increased the occurrence of a lack of bonding and unfilled defects within the weld. The microstructures with a welding zone and heat-affected zone mainly consisted of upper bainite. The hardness value was highest in the welding zone and lowest in the base material. During the pull-out tests, all the welds failed in the stud. Moreover, the defect-free welds broke at the interface of the lap plate and substrate during the cruciform uniaxial tensile test. The best tensile test results at different depths and shear tests were 721.6 MPa and 581.9 MPa, respectively. The favorable Charpy impact-absorbed energy was 68.64 J at 0 °C. The Charpy impact tests revealed a brittle fracture characteristic with a large area of cleavage.

  10. ATTEMPTS FOR OPTIMIZATION THE GENETIC IMPROVEMENT ACTIONS IN HORSE POPULATIONS OF NONIUS VARIETY AND ARDENNES BREED FROM THE IZVIN STUD, TIMIŞ COUNTY

    Directory of Open Access Journals (Sweden)

    D. DRONCA

    2007-10-01

    Full Text Available Researches were carried out on horse populations of Nonius variety and Ardennes breedfrom Izvin Stud, farm that belongs to the Forestry Direction Timiş. In Romania, Noniusvariety built up at the Mezohegyes Stud in Hungary was imported at Bonţida and Ruşeţu inyear 1920. In year 1940, the two types of Nonius were blended and were raised together atthe Parţa Stud, called later Pădureni Stud. There stayed until year 1967 when the horsepopulation was moved to the Izvin Stud, where is raised together with the Ardennes horseimported from Hungary as well. The aim of the present study was to attempt to optimize thegenetic improvement actions of the horse population from Nonius variety and Ardennesbreed raised at the Izvin Stud. For Nonius variety the main genetic improvement objectiveswere set up as being the improvement of the reproduction traits, correction of the gait inhorses, increasing the energetic capacity, temperament and nervous impulse, as well asother conformation traits. For the Ardennes breed the main genetic improvement objectiveswere considered to be the increase of the constitutional strength, correction of the gait andimprovement of the reproduction indices. The study was ended with a number ofconclusions and recommendations.

  11. CORRELATION BETWEEN SOME BODY MEASURES OF LIPPIZANER STALLION PER LINES AT ĐAKOVO STUD

    Directory of Open Access Journals (Sweden)

    T. Rastija

    2002-06-01

    Full Text Available Body measures of Lippizaner line stallions and their correlation were processed in Đakovo stud. The measures performed by Lydtin rod and stock band included withers height, chest girth and cannon bone circumference on the total of 75 heads. Neapolitano line was characterized by the fewest number of stallions (4 whereas Tulip by the largest one (20. Data attained by the measuring were processed by the statistical program SPSS/PC (Nie et. al. 1975. Neapolitano line stallions had the lowest withers height (164.00 cm measured by the band whereas Conversano line stallions had the highest one (166.33 cm. Withers height measured by the rod was the lowest in the Maestoso line stallion (156.50 cm and the highest one in the Favory line (159.20 cm. Chest girth ranged between 183.82 cm (Pluto line and 186.89 cm (Conversano line. Cannon bone circumference was uniform with all lines ranged from 20.05 cm (Tulipan line and 20.65 cm (Maestoso lines. Correlation between withers height measured by the band and rod and that one measured by the rod and chest girth was positive and highly significant. However, correlation between others ranged from slight positive to slight negative. Neapolitano line was known for the most pronounced correlation per lines whereas Tulip line for the weakest one. Correlation between withers height measured by the band and rod was in all lines highly significant (except Tulip line whereas other correlation varied from positive to negative.

  12. Effects of Plate Thickness and Projection Shape on the Microstructure and Strength of High-Speed Solid-State Joined 2024 Alloy Studs and 5052 Alloy Plates

    Science.gov (United States)

    Kumai, Shinji; Hayashida, Keisuke; Takaya, Kento

    An advanced stud joining method was developed that produces a strong joint without mechanical property degradation of the base materials. Specially designed 2024-T3 aluminum alloy studs with a circular ridge projection were pressed against 5052-H34 aluminum alloy plates of 1 to 4 mm in thickness. A high-density discharge current was run through the stud, and flowed through the projection and plate surface for several milliseconds, prompting local heating, plastic deformation, and atomic diffusion at the contact point. The projection crushed and spread along the plate surface. Asymmetrical deformation occurred on both the inner side and the outer side of the projection. For thin plates, joining mainly occurred at the outer side. For thick plates, in contrast, the deformation was largely symmetrical. Effects of discharge voltage and the projection shape were also investigated in an attempt to optimize joining strength.

  13. Study of Morphological Indices of English Thoroughbred (E.T.H. Adult Equine Material Bred to Izvin Stud, Timis County

    Directory of Open Access Journals (Sweden)

    Ioan Tapalaga

    2011-10-01

    Full Text Available This research was conducted in order to establish very clearly the morphological indices of the E.T.H. race bred to Izvin Stud, and also to highlight its strengths, weaknesses and sports skills. Based on these assessments and morphological indices calculation we can give guidance on the improvement direction of this population of horses, usage of breeders and correct some deficiencies. The study was carried out on a number of 83 individuals of ETH race (7 satllions and and 76 mares belonging to Izvin Stud, Timis county and considered parameters were: height at withers, height at croup, height at the base of tail, diagonal length of the trunk, chest depth, chest width, torax width, croup width at hips, forearm length, flute length, thoracic perimeter, whistle perimeter, body weight. Obtained morphological index values show the superiority of breeding adults with 1.74% for the character height at withers and with 3.41% for the character body mass compared with data obtained from other locations in the country. Instead, the character chest depth recorded lower values with 0.75% and the character chest perimeter with 2.11% in the same conditions.

  14. Finite element modelling for thermal analysis of stud-to-plate laser brazing for a dissimilar metal joint

    International Nuclear Information System (INIS)

    Park, Jun Soo; Kim, Jong Min

    1996-06-01

    A finite element model was developed for the thermal analysis of a stud-to-plate laser brazing joint, and the transient temperature fields were analysed by using a three-dimensional model. The finite element program ABAQUS, together with a few user subroutines, was employed to perform the numerical approximation. Temperature-dependent thermal properties, effect of latent heat, and the convection and radiative heat losses were considered. The brazing parts used were AISI 304 stainless steel stud and aluminium A1 5052 plate, and the brazing alloy 88 A1-12 Si was used as filler metal. A pseudo-TM 01 mode of the cw CO 2 laser beam was used as heat source, for which TM 00 mode generated by beam oscillator was optically modulated using axicon lens. Re-location of the filler metal during the brazing process including its wetting and spreading was examined by using a high speed motion analyser, and the results were incorporated inn the FEM modelling for defining the solution domain and boundary conditions. The numerical results were obtained for typical process parameters, and were compared with experimental ones determined by using the infrared and thermocouple measurements. 11 figs., 30 refs. (Author)

  15. Influence of modern studded and bladed soccer boots and sidestep cutting on knee loading during match play conditions.

    Science.gov (United States)

    Kaila, Rajiv

    2007-09-01

    The influence of modern studded and bladed soccer boots and sidestep cutting on noncontact knee loading during match play conditions is not fully understood. Modern soccer boot type and sidestep cutting compared with straight-ahead running do not significantly influence knee internal tibia axial and valgus moments, anterior joint forces, and flexion angles. Controlled laboratory study. Fifteen professional male outfield soccer players undertook trials of straight-ahead running and sidestep cutting at 30 degrees and 60 degrees with a controlled approach velocity on a Fédération Internationale de Football Association (FIFA) approved soccer surface. Two bladed and 2 studded soccer boots from 2 manufacturers were investigated. Three-dimensional inverse dynamics analysis determined externally applied internal/external tibia axial and valgus/varus moments, anterior forces, and flexion angles throughout stance. The soccer boot type imparted no significant difference on knee loading for each maneuver. Internal tibia and valgus moments were significantly greater for sidestep cutting at 30 degrees and 60 degrees compared with straight-ahead running. Sidestep cutting at 60 degrees compared with straight-ahead running significantly increased anterior joint forces. Varying soccer boot type had no effect on knee loading for each maneuver, but sidestep cutting significantly increased internal tibia and valgus moments and anterior joint forces. Sidestep cutting, irrespective of the modern soccer boot type worn, may be implicated in the high incidence of noncontact soccer anterior cruciate ligament injuries by significantly altering knee loading.

  16. Finite element modelling for thermal analysis of stud-to-plate laser brazing for a dissimilar metal joint

    Energy Technology Data Exchange (ETDEWEB)

    Park, Jun Soo; Kim, Jong Min [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1996-06-01

    A finite element model was developed for the thermal analysis of a stud-to-plate laser brazing joint, and the transient temperature fields were analysed by using a three-dimensional model. The finite element program ABAQUS, together with a few user subroutines, was employed to perform the numerical approximation. Temperature-dependent thermal properties, effect of latent heat, and the convection and radiative heat losses were considered. The brazing parts used were AISI 304 stainless steel stud and aluminium A1 5052 plate, and the brazing alloy 88 A1-12 Si was used as filler metal. A pseudo-TM{sub 01} mode of the cw CO{sub 2} laser beam was used as heat source, for which TM{sub 00} mode generated by beam oscillator was optically modulated using axicon lens. Re-location of the filler metal during the brazing process including its wetting and spreading was examined by using a high speed motion analyser, and the results were incorporated inn the FEM modelling for defining the solution domain and boundary conditions. The numerical results were obtained for typical process parameters, and were compared with experimental ones determined by using the infrared and thermocouple measurements. 11 figs., 30 refs. (Author).

  17. Exposure to wear particles generated from studded tires and pavement induces inflammatory cytokine release from human macrophages.

    Science.gov (United States)

    Lindbom, John; Gustafsson, Mats; Blomqvist, Göran; Dahl, Andreas; Gudmundsson, Anders; Swietlicki, Erik; Ljungman, Anders G

    2006-04-01

    Health risks associated with exposure to airborne particulate matter (PM) have been shown epidemiologically as well as experimentally, pointing to both respiratory and cardiovascular effects. Lately, wear particles generated from traffic have been recognized to be a major contributing source to the overall particle load, especially in the Nordic countries were studded tires are used. In this work, we investigated the inflammatory effect of PM10 generated from the wear of studded tires on two different types of pavement. As comparison, we also investigated PM10 from a traffic-intensive street, a subway station, and diesel exhaust particles (DEP). Human monocyte-derived macrophages, nasal epithelial cells (RPMI 2650), and bronchial epithelial cells (BEAS-2B) were exposed to the different types of particles, and the secretion of IL-6, IL-8, IL-10, and TNF-alpha into the culture medium was measured. The results show a significant release of cytokines from macrophages after exposure for all types of particles. When particles generated from asphalt/granite pavement were compared to asphalt/quartzite pavement, the granite pavement had a significantly higher capacity to induce the release of cytokines. The granite pavement particles induced cytokine release at the same magnitude as the street particles did, which was higher than what particles from both a subway station and DEP did. Exposure of epithelial cells to PM10 resulted in a significant increase of TNF-alpha secreted from BEAS-2B cells for all types of particles used (DEP was not tested), and the highest levels were induced by subway particles. None of the particle types were able to evoke detectable cytokine release from RPMI 2650 cells. The results indicate that PM10 generated by the wear of studded tires on the street surface is a large contributor to the cytokine-releasing ability of particles in traffic-intensive areas and that the type of pavement used is important for the level of this contribution

  18. A cross-sectional survey of Thoroughbred stud farm management in the North Island of New Zealand.

    Science.gov (United States)

    Rogers, C W; Gee, E K; Firth, E C

    2007-12-01

    To obtain initial baseline data on the management of Thoroughbred stud farms in the North Island of New Zealand. Data on the management of Thoroughbred stud farms were collected from a sample of 22 stud farms located in the south Auckland/Waikato region (n=15) and lower North Island (n=7) of New Zealand, using a face-to-face survey. The studmaster provided information on the size, scope and management of the farms during the 2004/2005 breeding season. Analysis was based on the location of the farm and size of the breeding operation (number of resident mares). Effective farm size ranged from 20 to 526 ha and averaged 167 (standard error (SE) 36) and 88 (SE 49) ha in the south Auckland/Waikato and lower North Island areas, respectively. Some farms in the Auckland/Waikato region stood shuttle stallions. The median number of stallions per farm was three (range 0-9), and the median mare-to-stallion ratio was 43 (range 10-250). The farms had a mean of 50 (range 7-180) wet mares and 21 (range 0-100) dry mares. The number of mares per breeding stallion increased with increasing size of breeding operation (p=0.04), being 28 (95% confidence interval (CI) = 10-56) vs 40 (95% CI=16-74) vs 74 (95% CI=44-113) for moderate (or=200 mares in total) operations, respectively. Seventy-one percent of farms aimed to breed dry mares early in the breeding season, and used a combination of lights, hormone therapy, and rising plane of nutrition to achieve this. Foaling took place in foaling paddocks monitored using a night foaling attendant (17/22) or with foaling alarms (5/22). At birth, 17/22 studmasters routinely administered antibiotics, 14/22 administered tetanus antitoxin, 9/22 administered an enema to foals, and 2/22 did not routinely administer prophylactic treatments. Weaning occurred at 5 (range 3.7-7) months of age, and foals were confined to a box for 1-2 weeks on 16/22 farms. Weaned foals were drenched with anthelmintics every 7 (range 4-9) weeks, and were fed 2.9 (range 1

  19. A Parameter Study of Coupling Properties in Finite Element Models of Single-Stud Double-Plate Panels

    DEFF Research Database (Denmark)

    Dickow, Kristoffer Ahrens; Domadiya, Parthkumar Gandalal; Andersen, Lars Vabbersgaard

    2011-01-01

    Lightweight building techniques are currently progressing fast and using such structures for multi-storey multi-family dwellings is becoming part of the industry standard. Partitions in lightweight buildings are often constructed as plates on frame structures made of either wood or steel. In any...... case the low frequency sound transmission is often an issue that needs attention. The present paper utilizes a finite element model of a single-stud double-plate panel structure to investigate how different couplings between the plates and the frame structure affect the direct sound transmission. Four...... and the load acts as a diffuse field on one side of the panel. The obtained results indicate that in order to accurately model sound transmission through a double-plate panel structure, the choice of coupling is an important factor....

  20. Effect of production management on semen quality during long-term storage in different European boar studs.

    Science.gov (United States)

    Schulze, M; Kuster, C; Schäfer, J; Jung, M; Grossfeld, R

    2018-03-01

    The processing of ejaculates is a fundamental step for the fertilizing capacity of boar spermatozoa. The aim of the present study was to identify factors that affect quality of boar semen doses. The production process during 1 day of semen processing in 26 European boar studs was monitored. In each boar stud, nine to 19 randomly selected ejaculates from 372 Pietrain boars were analyzed for sperm motility, acrosome and plasma membrane integrity, mitochondrial activity and thermo-resistance (TRT). Each ejaculate was monitored for production time and temperature for each step in semen processing using the special programmed software SEQU (version 1.7, Minitüb, Tiefenbach, Germany). The dilution of ejaculates with a short-term extender was completed in one step in 10 AI centers (n = 135 ejaculates), in two steps in 11 AI centers (n = 158 ejaculates) and in three steps in five AI centers (n = 79 ejaculates). Results indicated there was a greater semen quality with one-step isothermal dilution compared with the multi-step dilution of AI semen doses (total motility TRT d7: 71.1 ± 19.2%, 64.6 ± 20.0%, 47.1 ± 27.1%; one-step compared with two-step compared with the three-step dilution; P < .05). There was a marked advantage when using the one-step isothermal dilution regarding time management, preservation suitability, stability and stress resistance. One-step dilution caused significant lower holding times of raw ejaculates and reduced the possible risk of making mistakes due to a lower number of processing steps. These results lead to refined recommendations for boar semen processing. Copyright © 2018 Elsevier B.V. All rights reserved.

  1. Investigating the Effect of the Number of End-Panel Studs on the Seismic Properties of Cold-Formed Light-Steel Shear-Panel Braces

    Directory of Open Access Journals (Sweden)

    Tafti Mohammad Reza Javaheri

    2013-06-01

    Full Text Available Detailed investigation of the effect of the number of end-panel studs on the seismic properties of light-steel shear-panel braces in cold-formed steel frames and in particular the associated response modification coefficients (R factor, are presented in this paper. A total of 6 full-scale 1200×2400 mm specimens are considered, and the responses investigated under a standard cyclic loading regime. Of particular interest are the specimens’ maximum lateral load capacity and deformation behavior as well as a rational estimation of the seismic response modification factor. The study also looks at the failure modes of the system and investigates the main factors contributing to the ductile response of the tested shear-panel braces in order to suggest improvements so that braces respond plastically with a significant drift and without any risk of brittle failure, such as connection failure or stud buckling.

  2. Investigation of the Weld Properties of Dissimilar S32205 Duplex Stainless Steel with AISI 304 Steel Joints Produced by Arc Stud Welding

    Directory of Open Access Journals (Sweden)

    Aziz Barış Başyiğit

    2017-03-01

    Full Text Available UNS S32205 duplex stainless steel plates with a thickness of 3 mm are arc stud welded by M8 × 40 mm AISI 304 austenitic stainless steel studs with constant stud lifts in order to investigate the effects of welding arc voltages on mechanical and microstructural behaviors of the joints. As the welding arc voltage increases starting from 140 V, the tensile strength of the weldment also increases but the higher arc values results in more spatters around the weld seam up to 180 V. Conversely, the lower arc voltages causes poor tensile strength values to weldments. Tensile tests proved that all of the samples are split from each other in the welding zone but deformation occurs in duplex plates during the tensile testing of weldments so that the elongation values are not practically notable. The satisfactory tensile strength and bending values are determined by applying 180 volts of welding arc voltage according to ISO 14555 standard. Peak values of micro hardness occurred in weld metal most probably as a consequence of increasing heat input decreasing the delta ferrite ratios. As the arc voltage increases, the width of the heat affected zone increases. Coarsening of delta-ferrite and austenite grains was observed in the weld metal peak temperature zone but it especially becomes visible closer to the duplex side in all samples. The large voids and unwelded zones up to approximately 1 mm by length are observed by macro-structure inspections. Besides visual tests and micro-structural surveys; bending and microhardness tests with radiographic inspection were applied to samples for maintaining the correct welding parameters in obtaining well-qualified weldments of these two distinct groups of stainless steel materials.

  3. [Particle numbers in classified sizes of roadside dust caused by studded tires in the air at different heights from the pavement surface].

    Science.gov (United States)

    Sato, T; Niioka, T; Kurasaki, M; Kojima, Y

    1996-07-01

    Increased use of motor vehicles has produced various risks to human health due to air pollution by noxious gases, heavy metals and roadside dust. Since the late 1970s, the wide spread use of studded tires for cars has caused pavement wear, resulting in not only economic losses, but also roadside air pollution in cold and snowy regions in Japan. The most serious environmental problem in Sapporo, a city with heavy snowfall, in the 1980s, was roadside dust derived from studded tires. The inhabitants suffered from this dust in the early winter and in the early spring when the streets were not covered with snow. To investigate the influence of such roadside dust upon human health, particle numbers in classified sizes of roadside dust were counted after the roadside dust in the air was collected with a device we constructed at 30, 60, 90, 120, 150, and 180 cm above the pavement surface. The results indicated that the concentration of roadside dust in the air did not greatly vary according to the height from the pavement surface. The results also suggested that xenogranuloma, reported in lungs of stray dogs, under roadside dust-pollution conditions such as those examined here, may occur in humans in the future.

  4. Experimental and Finite Element Analysis to Investigate the Vibration of Oblique-Stud Stator Frame in a Large Hydropower Generator Unit

    Directory of Open Access Journals (Sweden)

    Jianzhong Zhou

    2017-12-01

    Full Text Available This paper presents an investigation on the undesirable vibration of an oblique-stud stator frame in a large hydropower generator by means of experimental and finite element (FE analysis. First, field experimental tests were performed, and the results indicate that the main vibration component comes from electromagnetic factors. Then, a 2D-magnetic and 3D-mechanical FE model was developed to investigate the vibration of the stator frame under the action of electromagnetic forces. A set of contrast models was established to study the effects of different kinds of eccentricity and different structures. Based on the comparative analysis between the results of simulations and experimental tests, it can be inferred that the abnormal vibration is generated because of the lack of stiffness in the upper part of structure and the existence of dynamic eccentricity in the rotor–stator system. In addition, the structural simulation analysis shows that the flexible designed oblique-stud stator frame is relatively vulnerable against the electromagnetic forces.

  5. Experimental Study on Welded Headed Studs Used In Steel Plate-Concrete Composite Structures Compared with Contactless Method of Measuring Displacement

    Science.gov (United States)

    Kisała, Dawid; Tekieli, Marcin

    2017-10-01

    Steel plate-concrete composite structures are a new innovative design concept in which a thin steel plate is attached to the reinforced concrete beam by means of welded headed studs. The comparison between experimental studies and theoretical analysis of this type of structures shows that their behaviour is dependent on the load-slip relationship of the shear connectors used to ensure sufficient bond between the concrete and steel parts of the structure. The aim of this paper is to describe an experimental study on headed studs used in steel plate-concrete composite structures. Push-out tests were carried out to investigate the behaviour of shear connectors. The test specimens were prepared according to standard push-out tests, however, instead of I-beam, a steel plate 16 mm thick was used to better reflect the conditions in the real structure. The test specimens were produced in two batches using concrete with significantly different compressive strength. The experimental study was carried out on twelve specimens. Besides the traditional measurements based on LVDT sensors, optical measurements based on the digital image correlation method (DIC) and pattern tracking methods were used. DIC is a full-field contactless optical method for measuring displacements in experimental testing, based on the correlation of the digital images taken during test execution. With respect to conventional methods, optical measurements offer a wider scope of results and can give more information about the material or construction behaviour during the test. The ultimate load capacity and load-slip curves obtained from the experiments were compared with the values calculated based on Eurocodes, American and Chinese design specifications. It was observed that the use of the relationships developed for the traditional steel-concrete composite structures is justified in the case of ultimate load capacity of shear connectors in steel plate-concrete composite structures.

  6. Women versus men with chronic atrial fibrillation: insights from the Standard versus Atrial Fibrillation spEcific managemenT studY (SAFETY.

    Directory of Open Access Journals (Sweden)

    Jocasta Ball

    Full Text Available BACKGROUND: Gender-based clinical differences are increasingly being identified as having significant influence on the outcomes of patients with cardiovascular disease (CVD, including atrial fibrillation (AF. OBJECTIVE: To perform detailed clinical phenotyping on a cohort of hospitalised patients with chronic forms of AF to understand if gender-based differences exist in the clinical presentation, thrombo-embolic risk and therapeutic management of high risk patients hospitalised with chronic AF. METHODS: We are undertaking the Standard versus Atrial Fibrillation spEcific managemenT studY (SAFETY - a multi-centre, randomised controlled trial of an AF-specific management intervention versus usual care. Extensive baseline profiling of recruited patients was undertaken to identify gender-specific differences for risk delineation. RESULTS: We screened 2,438 patients with AF and recruited 335 into SAFETY. Of these, 48.1% were women who were, on average, 5 years older than their male counterparts. Women and men displayed divergent antecedent profiles, with women having a higher thrombo-embolic risk but being prescribed similar treatment regimens. More women than men presented to hospital with co-morbid thyroid dysfunction, depression, renal impairment and obesity. In contrast, more men presented with coronary artery disease (CAD and/or chronic obstructive pulmonary disease (COPD. Even when data was age-adjusted, women were more likely to live alone (odds ratio [OR] 2.33; 95% confidence interval [CI] 1.47 to 3.69, have non-tertiary education (OR 2.69; 95% CI 1.61 to 4.48 and be symptomatic (OR 1.93; 95% CI 1.06 to 3.52. CONCLUSION: Health care providers should be cognisant of gender-specific differences in an attempt to individualise and, hence, optimise the management of patients with chronic AF and reduce potential morbidity and mortality.

  7. An introductory survey of helminth control practices in South Africa and anthelmintic resistance on Thoroughbred stud farms in the Western Cape Province

    Directory of Open Access Journals (Sweden)

    S. Matthee

    2002-07-01

    Full Text Available Fifty-one per cent of 110 questionnaires, designed for obtaining information on helminth control practices and management on Thoroughbred stud farms in South Africa, were completed by farmers during 2000. The number of horses per farm included in the questionnaire survey ranged from 15 to 410. Foals, yearlings and adult horses were treated with anthelmintics at a mean of 7.3+ / -3.0, 6.6+ / -2.7 and 5.3+ / -2.3 times per year, respectively. An average of 3.4 different drugs were used annually, with ivermectin being used by most farmers during 1997-2000. On 43% of farms the weights of horses were estimated by weigh band and 45% of farmers estimated visually, while both were used on 7% of farms and scales on the remaining 5%. Doses were based on average group weight on 50% of the farms and on individual weights on 46%. Forty-three per cent of farmers performed faecal egg count reduction tests (FECRT. Most farmers rotated horses between pastures and treated new horses at introduction. Faecal removal was practiced on 61% of farms and less than 50% of farmers used alternate grazing with ruminants. Faecal egg count reduction tests were done on 283 horses, using oxibendazole, ivermectin and moxidectin on 10, 9 and 5 farms, respectively, in the Western Cape Province during 2001. While the efficacy of oxibendazole was estimated by FECRT to range from 0-88% and moxidectin from 99-100%, ivermectin resulted in a 100% reduction in egg counts. Only cyathostome larvae were recovered from post-treatment faecal cultures.

  8. Reactor vessel stud cleaning machine

    International Nuclear Information System (INIS)

    Cavada, D.R.; Golick, L.R.

    1986-01-01

    A device is described for cleaning and decontaminating an elongate member having a three dimensional surface topography comprising: an enclosure; means for rotatingly supporting the elongate member proximate the ends thereof within the enclosure; means for driving the elongate member supporting means, to rotate the elongate member; a supply tank for holding water; a spray nozzle connected to the supply tank and disposed within the enclosure operable to move transversely with respect to the elongate member for spraying a cleaning agent comprising high pressure water and abrasive grit against the rotating elongate member; a self-contained means for supplying the cleaning agent to the spray nozzle and removing spent cleaning agent from the enclosure, the self-contained means including the supply tank and means for disposing of any contaminated solids in the spent cleaning agent. The means for disposing further comprises means for removing spent cleaning agent from the enclosure, means for removing solid particles from the spent cleaning agent and means for recycling water from the spent cleaning agent back to the spray nozzle; and a control system for selectively controlling at least one of the rate of rotation of the elongate member and rate of trasversal of the elongate member and by the spray nozzle in accordance with the topography of the elongate member

  9. THE ABSOLUTE GROWTH AND THE GROWTH COEFFICIENTS OF THE MAIN CORPORAL SIZES ON ACTUAL YOUTH ARDENEZ MALE COMPARED WITH THE YOUTH ARDENEZ MALE BREED IN 2002 ON IZVIN STUD, TIMIS DISTRICT

    Directory of Open Access Journals (Sweden)

    I. TĂPĂLAGĂ

    2009-10-01

    Full Text Available The purpose of this paper is to observe the development degree under the morphological aspect at Ardenez horses from Izvin Stud. For this we have observed 8 exterior indicators on horses starting from 0-6 months to adult ones.The research was made on strength of 49 horses Ardenez thoroughbred, where absolute growth and the growth coefficients of the main corporal dimensions were calculated for the actual young Ardenez horses, compared with the absolute growth and the growth coefficients of the main corporal dimensions for young Ardenez horses raised in 2002 at Izvin Stud.As a result of the research, we’ve find that the growth of the main corporal dimensions on young horses is influenced by internal and external factors.From the internal factors, the precocity specific for the heavy thoroughbred, has influence upon the growth of the main corporal dimensions, thus at the age of 3, some of this dimensions stop their growth.A special influence upon the growth is exerted by the appearance of the sexual maturity, factor that makes corporal dimensions to vary between sexes, after the installation of the secondary sexual characters.

  10. Correction of the calculation of the ultimate strength of studs shear connectors in solid slab composite section; Correccion del calculo de la capacidad resistente ultima de conectadores tipo perno de estructuras mixtas en la tipologia de viga-losa maciza

    Energy Technology Data Exchange (ETDEWEB)

    Bonilla Rocha, J. D.; Larrua Quevedo, R.; Recarey Morfa, C. A.; Mirambell Arrizabalaga, E.

    2009-07-01

    In this work is studied starting from the numeric simulation with previous calibration and validation, the behavior of studs shear connectors of composite structures of concrete and steel formed by beam sections and solid slab of concrete, subjected to flexion under loads static. In such a sense it is carried out a parametric study that allows to value the influence of the different factors that intervene in the behavior of the connection and allow to establish the variables of the proposed formulation, obtaining a procedure enough easy and practical. Finally a new formulation the one is achieved which supposes a significant advances with regard to the existent ones in the main ones normative international: AISC-LRFD (2005), Eurocode 4 (IN-1994-1-1:2004), as well as the normative cuban NR 080-2004, when taking in consideration in the expression new factors, redounding in a bigger in the presage of the ultimate strength capacity. (Author) 22 refs.

  11. Should duration of dual antiplatelet therapy depend on the type and/or potency of implanted stent? A pre-specified analysis from the PROlonging Dual antiplatelet treatment after Grading stent-induced Intimal hyperplasia studY (PRODIGY).

    Science.gov (United States)

    Valgimigli, Marco; Borghesi, Marco; Tebaldi, Matteo; Vranckx, Pascal; Parrinello, Giovanni; Ferrari, Roberto

    2013-03-01

    The purpose of this pre-specified analysis of the PROlonging Dual antiplatelet treatment after Grading stent-induced Intimal hyperplasia studY (PRODIGY) was to assess device-specific outcomes relative to different duration of dual antiplatelet therapy (DAPT) after Everolimus- (EES), Paclitaxel (PES), Zotarolimus- (ZES-S) eluting, or bare metal stents (BMS). We randomized 2013 patients to BMS, ZES-S, PES, or EES implantation. At 30 days, each stent group underwent up to 6 or 24 months clopidogrel therapy. The primary endpoint, which was a composite of death, myocardial infarction, or cerebrovascular accident, did not differ in patients receiving BMS [HR: 0.89 (95% CI: 0.54-1.45)], PES [HR: 0.74 (95% CI: 0.43-1.25)], or EES [HR: 0.63 (95% CI: 0.33-1.21)] implantation across DAPT groups, whereas it was significantly higher in ZES-S patients undergoing long when compared with short-term DAPT therapy (HR: 2.85, P = 0.0018), with positive interaction testing (P-value = 0.004). At the 6-month landmark analysis, heterogeneity across stent types persisted for the primary study endpoint and other secondary clinical outcomes, whereas patients receiving PES showed a significantly higher rate of definite, probable and definite, probable, possible stent thrombosis in the short DAPT regimen. No association in absolute or relative terms was noted between stent potency in inhibiting intimal hyperplasia and greater vulnerability to shorter DAPT therapy. Our study suggests that optimal duration of DAPT may be stent-specific and it does not support a clear association between stent potency and vulnerability to shorter DAPT therapy. Trial Registration clinicaltrials.gov Identifier: NCT00611286. http://clinicaltrials.gov/ct2/show/NCT00611286?term=prodigy&rank=2.

  12. Navigating the fine line between benefit and risk in chronic atrial fibrillation: rationale and design of the Standard versus Atrial Fibrillation spEcific managemenT studY (SAFETY).

    Science.gov (United States)

    Carrington, Melinda J; Ball, Jocasta; Horowitz, John D; Marwick, Thomas H; Mahadevan, Gnanadevan; Wong, Chiew; Abhayaratna, Walter P; Haluska, Brian; Thompson, David R; Scuffham, Paul A; Stewart, Simon

    2013-06-20

    Health outcomes associated with atrial fibrillation (AF) continue to be poor and standard management often does not provide clinical stability. The Standard versus Atrial Fibrillation spEcific managemenT studY (SAFETY) compares the efficacy of a post-discharge, nurse-led, multi-disciplinary programme to optimise AF management with usual care. SAFETY is a prospective, multi-centre, randomised controlled trial with blinded-endpoint adjudication. A target of 320 hospitalised patients with a chronic form of AF will be randomised (stratified by "rate" versus "rhythm" control) to usual post-discharge care or the SAFETY Intervention (SI). The SI involves home-based assessment, extensive clinical profiling and the application of optimal gold-standard pharmacology which is individually tailored according to a "traffic light" framework based on clinical stability, risk profile and therapeutic management. The primary endpoint is event-free survival from all-cause death or unplanned readmission during 18-36 months follow-up. Secondary endpoints include rate of recurrent hospital stay, treatment success (i.e. maintenance of rhythm or rate control and/or application of anti-thrombotic therapy without a bleeding event) and cost-efficacy. With study recruitment to be completed in early 2012, the results of this study will be available in early 2014. If positive, SAFETY will represent a potentially cost-effective and readily applicable strategy to improve health outcomes in high risk individuals discharged from hospital with chronic AF. Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

  13. Fault detection by Turam TEM survey. Numerical model studies and a case history; TEM ho Turam sokutei haichi ni yoru danso kenshutsu no kokoromi. Model keisan to jisshirei

    Energy Technology Data Exchange (ETDEWEB)

    Wada, K.; Tsutsui, T. [Mitsui Mineral Development Engineering Co. Ltd., Tokyo (Japan); Ito, T. [Chiba Univ., Chiba (Japan). Faculty of Science; Takeuchi, A. [Toyama University, Toyama (Japan). Faculty of Science; He, P. [Power Reactor and Nuclear fuel Development Corp., Tokyo (Japan)

    1997-05-27

    With an objective to detect faults estimated to exist along the Shigesumi valley in the Kamioka mine, discussions were given by using electromagnetic survey, which uses the Turam measurement arrangement based on the TEM method, and three-dimensional model calculations. The Turam measurement arrangement, which installs transmission loop fixedly, is used to identify nature and distribution of electrically conductive objects upon noticing abnormal portions in magnetic fields in the measurement data. In the model calculation, the plate model calculation method and the FDTD method were used, and so was the calculation code TEM3DL. The result revealed that strong topographical influence is seen from steep V-shaped valley existing along the traverse line in the measurement data, but an abnormal resistivity band accompanying remarkable distortion in the curve was detected. According to the result of the model calculation, anomaly detection may be found difficult in locations where a low resistivity band has not grown enough locally. It was possible from these facts to assume a model in which the low resistivity band exists directly below the Shigesumi valley, suggesting existence of faults. 2 refs., 8 figs.

  14. Discussion on sensor location in circular array for spatial autocorrelation method; Kukan jiko sokanho no enkei array ni okeru jishinkei haichi no kento

    Energy Technology Data Exchange (ETDEWEB)

    Yamamoto, H.; Iwamoto, K.; Saito, T.; Yoshida, A. [Iwate University, Iwate (Japan). Faculty of Engineering

    1997-05-27

    Methods to derive underground structures by utilizing the dispersion phenomenon of surface waves contained in microtremors include the frequency-wave number analysis method (the F-K method) and the spatial autocorrelation method (SAC method). The SAC method is said capable of estimating the structures to deeper depths than with the F-K method if the same seismometer is used. However, the F-K method is used more frequently. This is because the SAC method imposes a strict restriction that seismometers must be arranged evenly on the same circumference, while the F-K method allows seismometers to be arranged arbitrarily during an observation. Therefore, the present study has discussed whether the SAC method can be applied to observations with the seismometers arranged in the same way as in the F-K method, by using microtremor data acquired from actual observations. It was made clear that a seismometer arrangement for the SAC method may be sufficed with at least three meters arranged on the same circumference. These meters may not have to be arranged evenly, but because the acquired phase velocities may vary according to wave arriving directions and seismometer arrangement, it is desirable to perform observations with seismometers arranged as evenly as possible. 13 figs.

  15. Concentration characteristics and cell arrangement in luminescent concentrator PV modules; Keiko shukogata taiyo denchi module no cell haichi to shuko tokusei

    Energy Technology Data Exchange (ETDEWEB)

    Inamura, A. [Science University of Tokyo, Tokyo (Japan); Sakuta, K. [Electrotechnical Laboratory, Tsukuba (Japan)

    1997-11-25

    A luminescent concentrator PV module requires no tracking equipment and can use scattered light. A mini PV module was prepared from a luminescent plate of 100times100times3mm, and a single-crystalline PV cell of 100times20mm. Characteristics of various prototype modules with different PV cell areas and cell arrangements were also measured. Four kinds of edge reflecting materials with different reflectances by various white coating were applied to Al sashes for module frames, and each sash was fixed on one edge of the luminescent plate. In experiment, 3 other edges were covered with black tapes to reduce each reflectance to 0%. Although PV module output was affected by reflectance of edges, the output was satisfactory at 90% or more in reflectance showing no difference in output. A concentrating efficiency decreased with an increase in luminescent plate (concentrator) area, while it was improved by cell arrangement with short optical pass length, and cell arrangement hardly affected by edge reflection. 4 refs., 7 figs.

  16. Two-year outcomes after first- or second-generation drug-eluting or bare-metal stent implantation in all-comer patients undergoing percutaneous coronary intervention: a pre-specified analysis from the PRODIGY study (PROlonging Dual Antiplatelet Treatment After Grading stent-induced Intimal hyperplasia studY).

    Science.gov (United States)

    Valgimigli, Marco; Tebaldi, Matteo; Borghesi, Marco; Vranckx, Pascal; Campo, Gianluca; Tumscitz, Carlo; Cangiano, Elisa; Minarelli, Monica; Scalone, Antonella; Cavazza, Caterina; Marchesini, Jlenia; Parrinello, Giovanni

    2014-01-01

    This study sought to assess device-specific outcomes after implantation of bare-metal stents (BMS), zotarolimus-eluting Endeavor Sprint stents (ZES-S), paclitaxel-eluting stents (PES), or everolimus-eluting stents (EES) (Medtronic Cardiovascular, Santa Rosa, California) in all-comer patients undergoing percutaneous coronary intervention. Few studies have directly compared second-generation drug-eluting stents with each other or with BMS. We randomized 2,013 patients to BMS, ZES-S, PES, or EES implantation. At 30 days, each stent group received up to 6 or 24 months of clopidogrel therapy. The key efficacy endpoint was the 2-year major adverse cardiac event (MACE) including any death, myocardial infarction, or target vessel revascularization, whereas the cumulative rate of definite or probable stent thrombosis (ST) was the key safety endpoint. Clinical follow-up at 2 years was complete for 99.7% of patients. The MACE rate was lowest in EES (19.2%; 95% confidence interval [CI]: 16.0 to 22.8), highest in BMS (32.1%; 95% CI: 28.1 to 36.3), and intermediate in PES (26.2%; 95% CI: 22.5 to 30.2) and ZES-S (27.8%; 95% CI: 24.1 to 31.9) groups (chi-square test = 18.9, p = 0.00029). The 2-year incidence of ST in the EES group (1%; 95% CI: 0.4 to 2.2) was similar to that in the ZES-S group (1.4%; 95% CI: 0.7 to 2.8), whereas it was lower compared with the PES (4.6%, 95% CI: 3.1 to 6.8) and BMS (3.6%; 95% CI: 2.4 to 5.6) groups (chi-square = 16.9; p = 0.0001). Our study shows that cumulative MACE rate, encompassing both safety and efficacy endpoints, was lowest for EES, highest for BMS, and intermediate for PES and ZES-S groups. EES outperformed BMS also with respect to the safety endpoints with regard to definite or probable and definite, probable, or possible ST. (PROlonging Dual antiplatelet treatment after Grading stent-induced Intimal hyperplasia studY [PRODIGY]; NCT00611286). Copyright © 2014 American College of Cardiology Foundation. Published by Elsevier Inc. All

  17. Genetic diversity in selected stud and commercial herds of the ...

    African Journals Online (AJOL)

    ... as being 2.67 - 7.78, with an average of 5.18 alleles per locus. It could be concluded that a moderate to high degree of variation is still present within the Afrikaner cattle breed, despite the recent decline in numbers of this indigenous breed. Keywords: Bos taurus africanus, heterozygosity, inbreeding, microsatellite markers ...

  18. Genetic diversity in selected stud and commercial herds of the ...

    African Journals Online (AJOL)

    Martina

    2014-08-29

    Aug 29, 2014 ... The Afrikaner cattle breed (Bos taurus africanus) is an indigenous South African breed of the “Sanga” type. Sanga cattle are generally found in Southern Africa and are a mixture of the Bos indicus and Bos taurus breeds (Payne & Wilson, 1999). Sanga cattle therefore contain genetic material that has been.

  19. the Nguni cattle stud at Bartlow Combine Factors influencing growth ...

    African Journals Online (AJOL)

    , Bloemfontein,. 9300 Republic of South Africa. Received ... The Bartlow Combine Breeding Station was established in approximately 1954 to accommodate the ..... Gestation length and birthweight in cattle and buffaloes: A review. J. Dairy Sci.

  20. Study on corrosion products from ear piercing studs

    International Nuclear Information System (INIS)

    Rogero, Sizue O.; Costa, Isolda; Saiki, Mitiko

    2000-01-01

    In this work instrumental neutron activation analysis was applied to analyse elemental composition of commercial gold coated ear piercing substrate and metals present in their corrosion products. The cytotoxic effect was also verified in these corrosion product extracts, probably, due to the lixiviation of Ni present in high quantity in their substrates. The analysis of gold coated ear piercing surfaces by scanning electron microscopy before and after the corrosion test showed coating defects and the occurrence of corrosion process. (author)

  1. qualitative exploration on application of stud. center[1

    African Journals Online (AJOL)

    User

    enactment of student centered learning in Mathematics and Natural Sciences. Hence, this article intended to explore qualitatively the .... to the university's science and technology education. Last but not least, the study might help as a .... implementing student-centered learning: “…coming late and leaving class early; other ...

  2. Synthetic focused array of electrical prospecting using pole-pole array potential data; Sanjigen denki tansaho ni okeru nikyokuho den`i data wo mochiita denryu shusoku haichi no goseiho

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, K. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1997-10-22

    Various methods have been put into practice for the conventional two-dimensional pole configuration using a single line in three-dimensional electrical prospecting. Pole configuration effective for the three-dimensional exploration has not been investigated. This paper describes synthetic focused array using four pairs of guarded poles based on pole-pole array potential data in the case of arrangement of measuring points on a grid. Results of the numerical simulation are also described. For the focused array, laterolog of electrical logging is applied to the surface prospecting. Directivity can be given to the current from the main pole by controlling the current from guarded pole. It was found from the simulation that the resistivity anomaly is concentrated directly on the embedded ball for the focused array rather than for the pole-pole array. It was also found that two conductive balls can be clearly separated for the focused array rather than for the dipole-dipole array. Accordingly, it was considered that results approximating the original structures can be obtained by analyzing using the both arrays. 5 refs., 6 figs.

  3. Utilization of two-way multicore cables and comparison of various electrode configurations in electrical prospecting; Denki tansa ni okeru sohokogata tashin cable no riyo to kakushu dekyoku haichi no hikaku

    Energy Technology Data Exchange (ETDEWEB)

    Takakura, S. [Geological Survey of Japan, Tsukuba (Japan); Matsushima, J. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering

    1996-10-01

    For more precise electrical prospecting, the new multicore cable was developed to allow high-density measurement by conventional equipment. Since conventional multicore cables are inferior in cost, length and weight, the new cable is composed of an n-conductor cable, two n-conductor male connectors and n lead wires. For connection of the multi-conductor cable and lead wires, cable sheath is peeled at n points at specific intervals. Sheath of the k-th conductor is peeled at k-th point from the terminal, and restored for insulation after connection of the conductor and lead wire. The male connectors are attached to the both ends of the multi-conductor cable. Since this two-way type cable can be used at every end, the measuring equipment can measure at one divisional point after another of a long measuring line while shifting the equipment from one point to another. All measurements are perfected only with two short cables. Resistivities were successfully measured along the long measuring line of 480m long with 97 electrodes arranged at intervals of 5m. Various electrode configurations were also compared. 1 ref., 4 figs., 2 tabs.

  4. Behavior and strength of welded stud shear connectors in composite beam

    Directory of Open Access Journals (Sweden)

    Jorge Douglas Bonilla Rocha

    2012-01-01

    Full Text Available En este trabajo se analiza el comportamiento de conectores tipo perno de estructuras compuestas. La sección compuesta está formada por un perfil de acero conectado a una losa maciza de hormigón. Se proponen varios modelos numéricos de la simulación del ensayo push-out, utilizando el método de elementos finitos. Los resultados obtenidos del análisis numérico son validados contra resultados experimentales. Se considera la no linealidad de los materiales, empleando un modelo bilineal para el acero y un modelo de daño plástico para el hormigón. La capacidad de la conexión obtenida a partir del análisis por elementos finitos se compara con la calculada usando la Normativa Americana y el Código Europeo para conectores tipo perno en sección compuesta de losa maciza. Se proponen varias modificaciones a las expresiones existentes en dichos códigos, donde se consideran nuevos factores que mejoran la predicción de la capacidad resistente última de la conexión.

  5. A Fatal Fad? Tongue Studs Cause More Problems Than Chipped Teeth

    Science.gov (United States)

    ... a fatal infection, such as Ludwig's angina or endocarditis, according to a report in the May/June 2004 issue of General Dentistry , the Academy of General Dentistry's (AGD) clinical, peer-reviewed journal. Ludwig's angina, a bacterial infection of the floor of the mouth, occurs ...

  6. StudTest – A Platform Supporting Complex and Interactive Knowledge Assessment

    Directory of Open Access Journals (Sweden)

    Vlado Glavinić

    2008-12-01

    Full Text Available This paper describes the model and prototype implementation of a knowledge assessment framework based on problem management components. In order to support student testing with complex problem types and enable usage of rich graphical user interfaces for solution entry, we have developed an e-examination model in which the core concept is a component that can generate complex questions and evaluate students' solutions with additional explanation generation, which we named prlet. The respective system implementation is described, which can operate under heavy loads.

  7. Stud attachments for the mandibular implant-retained overdentures: Prosthetic complications. A literature review

    OpenAIRE

    Daou, Elie E.

    2013-01-01

    A plethora of attachment systems for mandibular two-implant overdentures is currently available often without evidence-based support. Technical aspects are now parameters considered when choosing the appropriate attachment. Despite the increasing use of the Locator attachments, studies regarding their properties remain scarce. Peer reviewed articles published in English up to 2011, were identified through a MEDLINE search (Pubmed and Elsevier) and a hand search of relevant textbooks and annua...

  8. Retention of implant-supported overdenture with bar/clip and stud attachment designs.

    Science.gov (United States)

    Savabi, Omid; Nejatidanesh, Farahnaz; Yordshahian, Forough

    2013-04-01

    The degree of retention for overdenture attachments depends on design, location, and alignment of supporting dental implants and the type of attachments. The aim of this study was to evaluate the retention of an implant-supported overdenture with different attachment designs. An overdenture was made on an edentulous mandibular model with 2 ITI implants (4.1 × 10 mm) in the symphyseal region. Five specimens of 8 attachment designs with corresponding abutments and superstructures were used: ITI regular Dolder bar with 1 metal clip, ITI regular Dolder bar with cantilever and 3 metal clips, Hader bar with 1 plastic clip, Hader bar with cantilever and 3 plastic clips, Sphero block abutment with Rhein plastic caps (green, white, and pink), and retentive anchor with ITI elliptical matrix. The attachments' housings were interchangeable and fixed into the overdenture through nut and screw. The overdenture attachments were subjected to 8 consecutive pulls on a universal testing machine with a crosshead speed of 50.8 mm/min in the vertical and posteroanterior directions. Analysis of variance and Duncan tests were used to determine differences between mean retention values (α = .05). The highest average value retention was recorded for the ITI Dolder bar with cantilever and 3 metal clips in both the vertical and posteroanterior directions, respectively (P attachments in both directions. The type, number, and placement of attachments affect the retention of implant-supported mandibular overdentures.

  9. Jména studánek na Moravě a ve Slezsku

    Czech Academy of Sciences Publication Activity Database

    Komárková, Zina

    2010-01-01

    Roč. 51, č. 1 (2010), s. 227-246 ISSN 1211-4413 R&D Projects: GA ČR GA405/08/0703 Institutional research plan: CEZ:AV0Z90610518 Keywords : small water sources * hydronyms * word-formation * motivation Subject RIV: AI - Linguistics

  10. Medication education program for Indian children with asthma: A feasibility stud.

    Science.gov (United States)

    Grover, C; Goel, N; Armour, C; Van Asperen, P P; Gaur, S N; Moles, R J; Saini, B

    2016-01-01

    It is postulated that children with asthma who receive an interactive, comprehensive, culturally relevant education program would improve their asthma knowledge (AK), asthma control, and adherence compared with children receiving usual care. The aim of this study was to develop, implement, and evaluate the efficacy of a culturally relevant asthma education intervention for children with asthma and their parents in India. Children with asthma (7-12 years) and their parents were recruited from an outpatient clinic in a Chest Diseases Hospital in New Delhi, and were randomly assigned to either an intervention or usual care group. At baseline, outcome data collected included pediatric asthma caregiver quality of life (PACQL, primary outcome), AK, asthma control, adherence, inhaler technique, action plan ownership, and goal achievement. These data were collected again at 1 and 6 months after baseline. Outcomes were compared within and between groups using ANOVA techniques. Forty parent-child pairs were recruited. Of these, 24 pairs of children with asthma and their parents received the educational intervention. The PACQL significantly improved from baseline to 6 months in the intervention (5.87 ± 0.94-7.00 ± 0.03) versus the usual care group (5.90 ± 0.52-6.34 ± 0.56) (P management skills.

  11. s Comp smut (S parativ Sporis re ve stud sorium eaction dy on e m ...

    African Journals Online (AJOL)

    SAM

    g 1 x 106 teli owing meris y and PCR u for eight we . Our results n both susc samples stain h week onwa ly from the 5. 6806 at any e early and p as a suitabl ... gen employin ars viz., Co 9 njection with d in sterile as sampled a. bE8 of mat ue was sam say is more ultivars as co otton blue. H. Co 6806. In m e susceptible.

  12. Punching shear capacity of reinforced concrete slabs with headed shear studs

    DEFF Research Database (Denmark)

    Hoang, Linh Cao; Pop, Anamaria

    2015-01-01

    . To design shear reinforcement in slabs, on the other hand, the engineer must settle for an empirical equation. The aim of the study reported is to demonstrate that it is possible in a simple manner to design shear reinforcement in slabs based on the same rigid-plasticity foundation as for beam shear design...

  13. Pred Stud dictors of dents at A f emergen dama Univ ncy contr ...

    African Journals Online (AJOL)

    raoul

    unwanted pregnancy? (4) Have you ever experienced induced abortion? All this questions were close ended (Yes, No and/or multiple choice questions). The third part contained practice of regular contraceptive use and knowledge of EC and consisted of 9 questions. The fourth part contained their attitudes and consisted of ...

  14. Accurate Finite Element Modelling of Chipboard Single-Stud Floor Panels subjected to Dynamic Loads

    DEFF Research Database (Denmark)

    Sjöström, A.; Flodén, O.; Persson, K.

    2012-01-01

    In multi-storey buildings, the use of lightweight material has many advantages. The low weight, the low energy consumption and the sustainability of the material are some attractive benefits from using lightweight materials. Compared with heavier structures i.e. concrete the challenge...... in constructing a building compliant with building codes vis-a-vis the propagation of sound and vibrations within the structure is a challenge. Focusing on junctions in a multi-storey lightweight buildings, a modular finite element model is developed to be used for analyses of vibration transmission...

  15. ESTUDO EXPERIMENTAL E NUMÉRICO DE CONECTORES DE CISSALHAMENTO DO TIPO STUD BOLD EM VIGAS MISTAS

    OpenAIRE

    da Silva, Welington Vital; Sobrinho, Brunno Emidio; Siqueira, João Paulo de Almeida; Macedo, Thiago Araujo; Bessa, Marco Aurelio Souza; Santos, Juliana Cardoso

    2017-01-01

      Resumo. As estruturas em aço-concreto são extremamente utilizadas na construção civil no Brasil devido às vantagens que são obtidas com o aproveitamento das propriedades desses materiais. Nessas estruturas o perfil de aço trabalha em conjunto com o concreto e a interação entre eles é garantida com o uso de conectores de cisalhamento. Os conectores são elementos metálicos cujas funções são transferir o fluxo de cisalhamento e restringir a separação vertical do conjunto misto. É de grande imp...

  16. CONCEPTUAL FRAMEWORK FOR IMPROVING BUSINESS PERFORMANCE WITH LEAN MANUFACTURING AND SUCCESSFUL HUMAN FACTORS INTERVENTIONS-A CASE STUD

    Directory of Open Access Journals (Sweden)

    Rajiv Sharm

    2012-09-01

    Full Text Available Nowadays organizations compete between themselves in various categories such as faster delivery, price tags, state of art - technology and higher quality dimensio ns. A Conceptual framework with lean manufacturing and hum an factors interventions for improving business performance in terms of improved quality, reduced cost and faster de livery is presented and example s from literature are given to illustrate the desir ed situation in which ergonomics is considered as an integrated part of performance strategy . A case from an industry engaged in manufacturing shafts using lean manufacturing practices with successful ergonomic or human factors interventions is also inves tigated.

  17. A Clinical Retrospective Study of Distal Extension Removable Partial Denture with Implant Surveyed Bridge or Stud Type Attachment

    Science.gov (United States)

    Bae, Eun-Bin; Kim, Seong-Jong; Choi, Jae-Won; Jeon, Young-Chan; Jeong, Chang-Mo; Yun, Mi-Jung; Lee, So-Hyoun

    2017-01-01

    This study was performed to make comparative analysis of the clinical findings between the two different types of the implant-assisted removable partial dentures: removable partial dentures using implant surveyed bridge as an abutment (ISBRPD) and overdenture type of removable partial denture using implant attachment (IARPD). Implant cumulative survival rate, marginal bone resorption, probing depth, peri-implant inflammation, bleeding, plaque, calculus, and complications were evaluated on 24 patients who were treated with implants in conjunction with removable partial denture and have used them for at least 1 year (ISCRPD: n = 12; IARPD: n = 12). There was no failed implant and all implants were functioning without clinical mobility. Marginal bone loss of ISCRPD (1.44 ± 0.57 mm) was significantly lower than that of IARPD (p 0.05), while the calculus was significantly more observed in ISCRPD group than in IARPD group (p < 0.05). The retention loss of IARPD was the most common complication. Within the limits of the present study, it was found that well-planned ISBRPD was clinically appropriate. Longitudinal and systematic clinical studies are necessary to confirm these results. PMID:28497062

  18. A Clinical Retrospective Study of Distal Extension Removable Partial Denture with Implant Surveyed Bridge or Stud Type Attachment

    Directory of Open Access Journals (Sweden)

    Eun-Bin Bae

    2017-01-01

    Full Text Available This study was performed to make comparative analysis of the clinical findings between the two different types of the implant-assisted removable partial dentures: removable partial dentures using implant surveyed bridge as an abutment (ISBRPD and overdenture type of removable partial denture using implant attachment (IARPD. Implant cumulative survival rate, marginal bone resorption, probing depth, peri-implant inflammation, bleeding, plaque, calculus, and complications were evaluated on 24 patients who were treated with implants in conjunction with removable partial denture and have used them for at least 1 year (ISCRPD: n=12; IARPD: n=12. There was no failed implant and all implants were functioning without clinical mobility. Marginal bone loss of ISCRPD (1.44 ± 0.57 mm was significantly lower than that of IARPD (p0.05, while the calculus was significantly more observed in ISCRPD group than in IARPD group (p<0.05. The retention loss of IARPD was the most common complication. Within the limits of the present study, it was found that well-planned ISBRPD was clinically appropriate. Longitudinal and systematic clinical studies are necessary to confirm these results.

  19. A Clinical Retrospective Study of Distal Extension Removable Partial Denture with Implant Surveyed Bridge or Stud Type Attachment.

    Science.gov (United States)

    Bae, Eun-Bin; Kim, Seong-Jong; Choi, Jae-Won; Jeon, Young-Chan; Jeong, Chang-Mo; Yun, Mi-Jung; Lee, So-Hyoun; Huh, Jung-Bo

    2017-01-01

    This study was performed to make comparative analysis of the clinical findings between the two different types of the implant-assisted removable partial dentures: removable partial dentures using implant surveyed bridge as an abutment (ISBRPD) and overdenture type of removable partial denture using implant attachment (IARPD). Implant cumulative survival rate, marginal bone resorption, probing depth, peri-implant inflammation, bleeding, plaque, calculus, and complications were evaluated on 24 patients who were treated with implants in conjunction with removable partial denture and have used them for at least 1 year (ISCRPD: n = 12; IARPD: n = 12). There was no failed implant and all implants were functioning without clinical mobility. Marginal bone loss of ISCRPD (1.44 ± 0.57 mm) was significantly lower than that of IARPD ( p implant inflammation, bleeding, and plaque between the two groups ( p > 0.05), while the calculus was significantly more observed in ISCRPD group than in IARPD group ( p < 0.05). The retention loss of IARPD was the most common complication. Within the limits of the present study, it was found that well-planned ISBRPD was clinically appropriate. Longitudinal and systematic clinical studies are necessary to confirm these results.

  20. THE RESULTS OF REPRODUCTION UTILITY OF THE POLISH PRIMITIVE HORSE IN THE CHOSEN STUD FARM IN POLAND IN THE PERIOD

    Directory of Open Access Journals (Sweden)

    STANISŁAW KUBACKI

    2010-12-01

    Full Text Available The analysis of Polish Primitive Horse reproduction, in the stable breeding in Dobrzyniewo, was carried out in the period 1993/1994 – 2003/2004. On the basis of the carried out analysis it is evident systematic increase (positive trend of basic coefficients of reproduction (foaling, fertility, fecundity, birth and a decrease of coefficients of infertility and abortions. On the other hand leading sires were stallions: Mikrus and Jehol, which were utilised in reproduction for the period of 11 years while mares covered by these stallions had relatively high coefficients of reproduction.

  1. Prescription event monitoring stud to assess the safety profile of oral natural micronized progesterone sustained release in India

    Directory of Open Access Journals (Sweden)

    Purandare AC, Hajare A

    2014-11-01

    Full Text Available Background:Role of natural micronized progesterone (NMP in various therapeutic conditions, including luteal phase correction and luteal phase support (LPS has been very well highlighted1, 2. It offers better safety profile on long term administration with ancillary immunomodulatory and anti-inflammatory properties3. Oral NMP in the form of sustained release (SRoffers better patient compliance due to once a day dosage schedule4. This employs a novel matrix technology for the release of progesterone in small pulses into the systemic circulation over a period of 24 hours, thereby minimizing the hepatic metabolism related side effects including sedation or drowsiness. Objective: To study the safety profile of oral NMP SR (Dubagest SR, a PEM study was conducted in the outpatient settings in India.Materials and methods: PEM study is a method employed worldwide to provide useful safety information on the drug when prescribed in ‘Real-life clinic settings’. Patients with bad obstetric history (BOH or unexplained infertility were prescribed either 300 or 400 mg SR once a day following induction with Natural or Stimulated ART cycle for two months. Safety information related as ‘Events’ was captured on the Study questionnaire sheet provided to 35 doctors across India for five patients at each centre between March and May ’13.Results: 153 patients completed the study with a mean of 27yrs& 55kgs. In infertility patients with BOH 87% patients had ≥ 2 abortions. The formulation was prescribed for Luteal Phase Support in Unexplained infertility (43.8% or BOH (50% and Secondary Amenorrhoea (5.9%. Oral NMP 300 mg SR was the most commonly prescribed formulation. The formulation was well tolerated with side effects including drowsiness (0.6%, hyperemesis (1.3%& giddiness (0.6% that were mild and transient. Two patients reported Spotting that disappeared on continued therapy and in other case probably related to reappearance of menses. Conclusion: Oral NMP SR is a clinically feasible option for LPSespecially in BOH cases having Insignificant side effect profile for improved compliance.

  2. A Parameter Study of Coupling Properties in Finite Element Models of Single-Stud Double-Plate Panels

    DEFF Research Database (Denmark)

    Dickow, Kristoffer Ahrens; Domadiya, Parthkumar Gandalal; Andersen, Lars

    2011-01-01

    Lightweight building techniques are currently progressing fast and using such structures for multi-storey multi-family dwellings is becoming part of the industry standard. Partitions in lightweight buildings are often constructed as plates on frame structures made of either wood or steel. In any ...

  3. Comments to " Retrieval of source parameters of an event of the 2000 West Bohemia earthquake swarm assuming an anisotropic crust", Stud. geophys. geod., 51, 231-254

    Czech Academy of Sciences Publication Activity Database

    Rössler, D.; Krüger, F.; Pšenčík, Ivan; Rümpker, G.

    2008-01-01

    Roč. 52, č. 2 (2008), s. 285-286 ISSN 0039-3169 Institutional research plan: CEZ:AV0Z30120515 Keywords : West Bohemia * tensile faulting * seismic anisotropy * seismic source Subject RIV: DC - Siesmology, Volcanology, Earth Structure Impact factor: 0.770, year: 2008

  4. Studded tire wear resistance of PCC pavements with special mix design : contract 6620, I-90, Argonne Road to Sullivan Road, MP 286.91 to 292.38

    Science.gov (United States)

    2011-02-01

    The performance of portland cement concrete mixes with higher flexural strength, higher cement content, and with Hard-Cem additive, carpet drag finish, and tined finish were evaluated over a period of five years to determine their resistance to studd...

  5. A comparative evaluation of fatigue resistance of two different implant overdenture stud attachments with two different denture base materials: An in vitro study

    Directory of Open Access Journals (Sweden)

    Namrata Agrawal

    2018-01-01

    Conclusion: Two implant-supported mandibular overdenture with ball and socket attachments incorporated by indirect technique showed higher values in terms of retention and absence of disengagement/fracture of components.

  6. Ensayo no destructivo de soldaduras en pernos conectores mediante inspección acústica = Non-destructive test of welding headed studs through acoustic emission

    OpenAIRE

    Aznar López, Antonio; Cervera Bravo, Jaime; Ortiz Herrera, Jesus Maria; Hernando Garcia, Jose Ignacio

    2012-01-01

    Los pernos conectores aportan múltiples ventajas de uso, entre las que se encuentra el elevado margen de seguridad que ofrecen sus soldaduras ejecutadas mediante arco eléctrico. Estas soldaduras, aunque ampliamente fiables, son difícilmente comprobadas mediante ensayos no destructivos. Aparte de la inspección visual, que aporta gran información sobre la calidad de ejecución de la soldadura, el resto de ensayos no destructivos (líquidos penetrantes, partículas magnéticas, ultrasonidos, radiogr...

  7. Study of the electrocatalytic activity of cerium oxide and gold-studded cerium oxide nanoparticles using a Sonogel-Carbon material as supporting electrode: electroanalytical study in apple juice for babies.

    Science.gov (United States)

    Abdelrahim, M Yahia M; Benjamin, Stephen R; Cubillana-Aguilera, Laura Ma; Naranjo-Rodríguez, Ignacio; de Cisneros, José L Hidalgo-Hidalgo; Delgado, Juan José; Palacios-Santander, José Ma

    2013-04-12

    The present work reports a study of the electrocatalytic activity of CeO2 nanoparticles and gold sononanoparticles (AuSNPs)/CeO2 nanocomposite, deposited on the surface of a Sonogel-Carbon (SNGC) matrix used as supporting electrode and the application of the sensing devices built with them to the determination of ascorbic acid (AA) used as a benchmark analyte. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used to investigate the electrocatalytic behavior of CeO2- and AuSNPs/CeO2-modified SNGC electrodes, utilizing different concentrations of CeO2 nanoparticles and different AuSNPs:CeO2 w/w ratios. The best detection and quantification limits, obtained for CeO2 (10.0 mg·mL(-1))- and AuSNPs/CeO2 (3.25% w/w)-modified SNGC electrodes, were 1.59 × 10(-6) and 5.32 × 10(-6) M, and 2.93 × 10(-6) and 9.77 × 10(-6) M, respectively, with reproducibility values of 5.78% and 6.24%, respectively, for a linear concentration range from 1.5 µM to 4.0 mM of AA. The electrochemical devices were tested for the determination of AA in commercial apple juice for babies. The results were compared with those obtained by applying high performance liquid chromatography (HPLC) as a reference method. Recovery errors below 5% were obtained in most cases, with standard deviations lower than 3% for all the modified SNGC electrodes. Bare, CeO2- and AuSNPs/CeO2-modified SNGC electrodes were structurally characterized using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). AuSNPs and AuSNPs/CeO2 nanocomposite were characterized by UV-vis spectroscopy and X-ray diffraction (XRD), and information about their size distribution and shape was obtained by transmission electron microscopy (TEM). The advantages of employing CeO2 nanoparticles and AuSNPs/CeO2 nanocomposite in SNGC supporting material are also described. This research suggests that the modified electrode can be a very promising voltammetric sensor for the determination of electroactive species of interest in real samples.

  8. Study of the Electrocatalytic Activity of Cerium Oxide and Gold-Studded Cerium Oxide Nanoparticles Using a Sonogel-Carbon Material as Supporting Electrode: Electroanalytical Study in Apple Juice for Babies

    Directory of Open Access Journals (Sweden)

    José Mª Palacios-Santander

    2013-04-01

    Full Text Available The present work reports a study of the electrocatalytic activity of CeO2 nanoparticles and gold sononanoparticles (AuSNPs/CeO2 nanocomposite, deposited on the surface of a Sonogel-Carbon (SNGC matrix used as supporting electrode and the application of the sensing devices built with them to the determination of ascorbic acid (AA used as a benchmark analyte. Cyclic voltammetry (CV and differential pulse voltammetry (DPV were used to investigate the electrocatalytic behavior of CeO2- and AuSNPs/CeO2-modified SNGC electrodes, utilizing different concentrations of CeO2 nanoparticles and different AuSNPs:CeO2 w/w ratios. The best detection and quantification limits, obtained for CeO2 (10.0 mg·mL−1- and AuSNPs/CeO2 (3.25% w/w-modified SNGC electrodes, were 1.59 × 10−6 and 5.32 × 10−6 M, and 2.93 × 10−6 and 9.77 × 10−6 M, respectively, with reproducibility values of 5.78% and 6.24%, respectively, for a linear concentration range from 1.5 µM to 4.0 mM of AA. The electrochemical devices were tested for the determination of AA in commercial apple juice for babies. The results were compared with those obtained by applying high performance liquid chromatography (HPLC as a reference method. Recovery errors below 5% were obtained in most cases, with standard deviations lower than 3% for all the modified SNGC electrodes. Bare, CeO2- and AuSNPs/CeO2-modified SNGC electrodes were structurally characterized using scanning electron microscopy (SEM and energy dispersive X-ray spectroscopy (EDS. AuSNPs and AuSNPs/CeO2 nanocomposite were characterized by UV–vis spectroscopy and X-ray diffraction (XRD, and information about their size distribution and shape was obtained by transmission electron microscopy (TEM. The advantages of employing CeO2 nanoparticles and AuSNPs/CeO2 nanocomposite in SNGC supporting material are also described. This research suggests that the modified electrode can be a very promising voltammetric sensor for the determination of electroactive species of interest in real samples.

  9. Comment on the "Geodynamic pattern of the West Bohemia region based on permanent GPS measurements" by V. Schenk, Z. Schenková and Z. Jechumtálová (Stud. Geophys. Geod., 53(2009), 329–341)

    Czech Academy of Sciences Publication Activity Database

    Fischer, Tomáš; Horálek, Josef

    2009-01-01

    Roč. 53, č. 3 (2009), s. 343-344 ISSN 0039-3169 Institutional research plan: CEZ:AV0Z30120515 Keywords : earthquake swarm region * West Bohemia * GPS observations Subject RIV: DC - Siesmology, Volcanology, Earth Structure Impact factor: 1.000, year: 2009

  10. Study of the Electrocatalytic Activity of Cerium Oxide and Gold-Studded Cerium Oxide Nanoparticles Using a Sonogel-Carbon Material as Supporting Electrode: Electroanalytical Study in Apple Juice for Babies

    Science.gov (United States)

    Abdelrahim, M. Yahia M.; Benjamin, Stephen R.; Cubillana-Aguilera, Laura Ma; Naranjo-Rodríguez, Ignacio; Hidalgo-Hidalgo de Cisneros, Josè L.; Delgado, Juan Josè; Palacios-Santander, Josè Ma

    2013-01-01

    The present work reports a study of the electrocatalytic activity of CeO2 nanoparticles and gold sononanoparticles (AuSNPs)/CeO2 nanocomposite, deposited on the surface of a Sonogel-Carbon (SNGC) matrix used as supporting electrode and the application of the sensing devices built with them to the determination of ascorbic acid (AA) used as a benchmark analyte. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used to investigate the electrocatalytic behavior of CeO2- and AuSNPs/CeO2-modified SNGC electrodes, utilizing different concentrations of CeO2 nanoparticles and different AuSNPs:CeO2 w/w ratios. The best detection and quantification limits, obtained for CeO2 (10.0 mg·mL−1)- and AuSNPs/CeO2 (3.25% w/w)-modified SNGC electrodes, were 1.59 × 10−6 and 5.32 × 10−6 M, and 2.93 × 10−6 and 9.77 × 10−6 M, respectively, with reproducibility values of 5.78% and 6.24%, respectively, for a linear concentration range from 1.5 μM to 4.0 mM of AA. The electrochemical devices were tested for the determination of AA in commercial apple juice for babies. The results were compared with those obtained by applying high performance liquid chromatography (HPLC) as a reference method. Recovery errors below 5% were obtained in most cases, with standard deviations lower than 3% for all the modified SNGC electrodes. Bare, CeO2- and AuSNPs/CeO2-modified SNGC electrodes were structurally characterized using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). AuSNPs and AuSNPs/CeO2 nanocomposite were characterized by UV-vis spectroscopy and X-ray diffraction (XRD), and information about their size distribution and shape was obtained by transmission electron microscopy (TEM;. The advantages of employing CeO2 nanoparticles and AuSNPs/CeO2 nanocomposite in SNGC supporting material are also described. This research suggests that the modified electrode can be a very promising voltammetric sensor for the determination of electroactive species of interest in real samples. PMID:23584124

  11. 24 CFR 3285.312 - Footings.

    Science.gov (United States)

    2010-04-01

    ..., factory-installed fireplaces, and fireplace stoves; under jamb studs at multiple window openings; and at..., factory-installed fireplaces, and fireplace stoves; under jamb studs at multiple window openings; and at...

  12. BREEDING AND UTILIZATION OF ARABIAN HORSE TODAY

    OpenAIRE

    Vlasta Mandić; Josip Ljubešić; Tomo Rastija; Živko Bošnjak

    2000-01-01

    Arab horse raising has a hundred year old tradition. A real stud farm raising started by purchasing original reproductive material from Asia in 1895, 1897 and 1899. Apart from state stud in Goražde, Arab horse was also raised in several private stud farms, especially in Slavonia and Srijem region. By the end of the II World war Arab horse raising was restricted to only 2-3 stud farms, regardless the above mentioned oldest Arab stud farm Goražde. According to reports refering to en...

  13. How wear affects road surface texture and its impact on tire/road noise

    OpenAIRE

    Siebert, Doreen

    2017-01-01

    Mechanical pavement wear in the Nordic countries is essentially influenced by the use of studded tires during long winter seasons. The abrasive effect of the studded tires is the cause of significant damage on the pavement and a contributor to rutting. In addition, the mechanical aggregate removal due to the studded tires is the reason for significant changes in the road surface texture. At traditional dense asphalt pavements, the mechanical wear is initiated by the abrasion of the mortar, wh...

  14. Green roofs

    CSIR Research Space (South Africa)

    Van Wyk, Llewellyn V

    2010-04-01

    Full Text Available for green roofs. A typical method makes use of a studded membrane (resembling an egg box) laid on a suitable waterproofing which, together, provides the waterproofing and the water drainage. A Geotextile blanket is then laid on top of the studded... be advisable to lay a supporting layer between the insulation and the studded membrane to protect the insulation. A further variation is to replace the studded membrane with a gravel drainage layer followed by the growing medium. In this instance it would...

  15. Influence of body weight, age and management system on ...

    African Journals Online (AJOL)

    GRETHA SNYMAN

    Abstract. The effect of doe age, body weight and different management systems, as practiced in various Angora goat studs, on reproductive performance of does was investigated. The data used were collected from 2000 to. 2004 on 12 Angora goat studs kept under different management systems. The data set analysed for ...

  16. Hydrographic characteristics and circulation in the Caribbean Sea during April and May 1990

    Digital Repository Service at National Institute of Oceanography (India)

    PrasannaKumar, S.; Murty, V.S.N.; Khan, A.A; Jones, M.A; Wagh, A; Desai, B.N.

    stream_size 12 stream_content_type text/plain stream_name Caribb_Mar_Stud_2_69.pdf.txt stream_source_info Caribb_Mar_Stud_2_69.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset=ISO-8859-1 ...

  17. Standing crop and growth rates of net phytoplankton and nanoplankton in Antarctic waters

    Digital Repository Service at National Institute of Oceanography (India)

    Goes, J.I.; Fondekar, S.P.; Parulekar, A.H.

    stream_size 16 stream_content_type text/plain stream_name Proc_Workshop_Antarct_Stud_1990_419.pdf.txt stream_source_info Proc_Workshop_Antarct_Stud_1990_419.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset...

  18. HCH and DDT compounds in the sediments from the Zub lake of Schirmacher Oasis, Antarctica

    Digital Repository Service at National Institute of Oceanography (India)

    Sarkar, A.; Fondekar, S.P.

    stream_size 9 stream_content_type text/plain stream_name Proc_Workshop_Antarct_Stud_1990_510.pdf.txt stream_source_info Proc_Workshop_Antarct_Stud_1990_510.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset...

  19. Living resources of Antarctic India's contribution to exploration and future plans for exploration

    Digital Repository Service at National Institute of Oceanography (India)

    Parulekar, A.H.

    stream_size 7 stream_content_type text/plain stream_name Proc_Workshop_Antarct_Stud_1990_459.pdf.txt stream_source_info Proc_Workshop_Antarct_Stud_1990_459.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset...

  20. The importance of vaginal cytology and challenges encountered ...

    African Journals Online (AJOL)

    Infertility in the remaining bitch was due to the stud dog owner's assumption that mating had occurred after the stud dog and the aggressive bitch were put in the same kennel for the duration of the bitch's fertile period. The authors recognized that most breeders and some veterinarians did not understand the physiology of

  1. AISI/DOE Technology Roadmap Program: Development of Cost-effective, Energy-efficient Steel Framing

    Energy Technology Data Exchange (ETDEWEB)

    Nader R. Elhajj

    2003-01-06

    Steel members in wall construction form a thermal bridge that interrupts the insulation layer of a wall. This causes higher rate of heat transfer by conduction through the wall framing than through other parts of the wall. One method to reduce the thermal bridging effect is to provide a break, such as insulating sheathing. A thermally efficient slit-web and stud was developed in this program to mitigate the conductivity of steel. The thermal performance of the slit-web stud was evaluated at Oak Ridge National Laboratory using hotbox testing. The thermal test results showed that the prototype slit-web stud performed 17% better than the solid-web stud, using R-13 fiber glass batts with exterior OSB sheathing and interior drywall. The structural behavior of this slit-web stud was evaluated in axial, bending, shear, shearwall, and stub-column tests. Test results indicated that the slitweb stud performed similarly or better than the solid-web stud in most structural performance characteristics investigated. Thus, the prototype slit-web stud has been shown to be thermally efficient, economiexecy viable, structurally sound, easily manufactured and usable in a range of residential installations.

  2. Traditional boat-building and navigational techniques of southern Orissa

    Digital Repository Service at National Institute of Oceanography (India)

    Tripati, S.

    stream_size 14 stream_content_type text/plain stream_name J_Indian_Ocean_Stud_3_66.pdf.txt stream_source_info J_Indian_Ocean_Stud_3_66.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset=ISO-8859-1 ...

  3. Download this PDF file

    African Journals Online (AJOL)

    GB

    Stud Fam Plann 1998;29:360-. 72. 21. Miller W, Severy L, Pasta D. A framework for modeling fertility motivation in couples. Pop. Stud 2004;58:193-205. 22. Odimegwu CO. Family planning attitudes and use in Nigeria: a factor analysis. Int Fam. Plann Perspectives 1999;25(1):86-91. 23. Adeniran, AS, Fawole AA, Fakeye OO.

  4. Surface heat budget of the Caribbean Sea during the pre-hurricane period (April-May) of 1990

    Digital Repository Service at National Institute of Oceanography (India)

    Murty, V.S.N.; PrasannaKumar, S.; Brown, P; Gray, C.R.; Hulse, J.; Jeremiah, P; Wagh, A.B; Desai, B

    stream_size 10 stream_content_type text/plain stream_name Caribb_Mar_Stud_2_87.pdf.txt stream_source_info Caribb_Mar_Stud_2_87.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset=ISO-8859-1 ...

  5. Influence of body weight, age and management system on ...

    African Journals Online (AJOL)

    The effect of doe age, body weight and different management systems, as practiced in various Angora goat studs, on reproductive performance of does was investigated. The data used were collected from 2000 to 2004 on 12 Angora goat studs kept under different management systems. The data set analysed for this study ...

  6. State of the marine environment in the South Asian seas region

    Digital Repository Service at National Institute of Oceanography (India)

    SenGupta, R.; Ali, M.M.; Bhuiyan, A.L; Hossain, M.M.; Sivalingam, P.M.; Subasinghe, S.; Tirmizi, N.M.

    stream_size 45 stream_content_type text/plain stream_name UNEP_Regional_Seas_Rep_Stud_1990_123.pdf.txt stream_source_info UNEP_Regional_Seas_Rep_Stud_1990_123.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset...

  7. Bathymetric observations from 60 degrees South to Princess Astrid Kyst in Queens Maud Land, Antarctica

    Digital Repository Service at National Institute of Oceanography (India)

    Pathak, M.C.; Kotnala, K.L.; Prabaharan, N.; Walker, G.A.

    stream_size 6 stream_content_type text/plain stream_name Proc_Workshop_Antarct_Stud_1990_138.pdf.txt stream_source_info Proc_Workshop_Antarct_Stud_1990_138.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset...

  8. 24 CFR 3280.808 - Wiring methods and materials.

    Science.gov (United States)

    2010-04-01

    ... frames where the cable or armor would be less than 11/2 inches from the inside or outside surface of the studs when the wall covering materials are in contact with the studs. Steel plates on each side of the...

  9. Biological studies in the Antarctic waters: A review

    Digital Repository Service at National Institute of Oceanography (India)

    Dhargalkar, V.K.

    stream_size 12 stream_content_type text/plain stream_name Proc_Workshop_Antarct_Stud_1990_407.pdf.txt stream_source_info Proc_Workshop_Antarct_Stud_1990_407.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset...

  10. Seismic resistance of composite floor diaphragms

    Science.gov (United States)

    Porter, M. L.; Greimann, L. F.

    1980-05-01

    The behavioral and strength characteristics of composite steel deck floor slab diaphragms are reported. Principal characteristics investigated include maximum load, ductility, stiffness, and failure mode. The addition of studs increases the flexural load capacity of one-way steel deck reinforced slabs by 10 to 30 percent. Non-studded specimens ultimately fail because of loss of interfacial force in the shear span. Studded specimens ultimately fail due to tearing of the deck near the stud. Two analysis procedures were used, a contributing forces approach and a shear-bond approach. The former was found to be a potential analysis procedure, and results from the shear-bond increase approach demonstrated its feasibility for studded specimens.

  11. Friction Hydro-Pillar Processing of a High Carbon Steel: Joint Structure and Properties

    Science.gov (United States)

    Kanan, Luis Fernando; Vicharapu, Buchibabu; Bueno, Antonio Fernando Burkert; Clarke, Thomas; De, Amitava

    2018-04-01

    A coupled experimental and theoretical study is reported here on friction hydro-pillar processing of AISI 4140 steel, which is a novel solid-state joining technique to repair and fill crack holes in thick-walled components by an external stud. The stud is rotated and forced to fill a crack hole by plastic flow. During the process, frictional heating occurs along the interface of the stud and the wall of crack hole leading to thermal softening of the stud that eases its plastic deformation. The effect of the stud force, its rotational speed and the total processing time on the rate of heat generation and resulting transient temperature field is therefore examined to correlate the processing variables with the joint structure and properties in a systematic and quantitative manner, which is currently scarce in the published literature. The results show that a gentler stud force rate and greater processing time can promote proper filling of the crack hole and facilitate a defect-free joint between the stud and original component.

  12. Friction Hydro-Pillar Processing of a High Carbon Steel: Joint Structure and Properties

    Science.gov (United States)

    Kanan, Luis Fernando; Vicharapu, Buchibabu; Bueno, Antonio Fernando Burkert; Clarke, Thomas; De, Amitava

    2018-01-01

    A coupled experimental and theoretical study is reported here on friction hydro-pillar processing of AISI 4140 steel, which is a novel solid-state joining technique to repair and fill crack holes in thick-walled components by an external stud. The stud is rotated and forced to fill a crack hole by plastic flow. During the process, frictional heating occurs along the interface of the stud and the wall of crack hole leading to thermal softening of the stud that eases its plastic deformation. The effect of the stud force, its rotational speed and the total processing time on the rate of heat generation and resulting transient temperature field is therefore examined to correlate the processing variables with the joint structure and properties in a systematic and quantitative manner, which is currently scarce in the published literature. The results show that a gentler stud force rate and greater processing time can promote proper filling of the crack hole and facilitate a defect-free joint between the stud and original component.

  13. System for remotely servicing a top loading captive ball valve

    International Nuclear Information System (INIS)

    Berry, S.M.; Porter, M.L.

    1996-01-01

    An attachment for facilitating servicing of a valve is disclosed including: an assembly composed of a valve seat defining a flow path, a flow control member movable relative to the valve seat for blocking or unblocking the valve seat, and a control device including a stem coupled to the flow control member and operable for moving the flow control member relative to the valve se housing for receiving the assembly, the housing having an opening via which the assembly can be removed from, and installed in, the housing, and the housing having a plurality of threaded studs which surround the opening and project away from the housing; a valve housing cover for closing and sealing the opening in the housing, the cover having a first bore for passage of the stem of the control device when the assembly is installed in the housing and a plurality of second bores each located for passage of a respective stud when the cover closes the opening in the housing. A plurality of threaded nuts are engageable with the studs for securing the cover to the housing when the cover closes the opening in the housing, wherein the attachment comprises: a plurality of nut guide devices removable from the housing and each operatively associated with a respective stud for retaining a respective nut and guiding the respective nut into alignment with the respective stud to enable the respective nut to be rotated into engagement with the respective stud; and aligning the nut guide devices with the studs. 7 figs

  14. Self Retaining Anti-Rotation Key

    Science.gov (United States)

    Dixon, Alan Benjamin Christopher (Inventor)

    2015-01-01

    Anti-rotation keys are typically used in applications where an end of a threaded stud is received in a housing, and where the opposite end of the stud projects from the housing to allow attachment of another component to the housing. Once partially received in the housing, further rotation of the stud is prevented by an anti-rotation key. The disclosed anti-rotation key is self-retaining, in that it prevents itself from "backing out" of the channel due to vibration or thermal expansion of the housing, etc., while also being removable from the channel if desired.

  15. Vehicle positioning trade study for ITS applications.

    Science.gov (United States)

    2011-08-01

    This report summarizes the results of a detailed positioning study intended to evaluate various positioning technologies and their applicability to a suite of location dependent vehicle safety and mobility applications. The initial phases of the stud...

  16. Oil and gas impacts on transportation.

    Science.gov (United States)

    2015-01-01

    Colorados oil and gas industry is continually evolving, and there have been considerable changes in drilling techniques and geographic focus since the 2010 CDOT research study on Energy Development and the Transportation System. This research stud...

  17. Road weather management performance metrics.

    Science.gov (United States)

    2008-04-29

    This report presents the results of a study to identify appropriate measures of performance that can be attributed to the Federal Highway Administrations (FHWA) Road Weather Management Program (RWMP) products and activities. Specifically, the stud...

  18. Final Report for Statistical Nonlinear Optics of High Energy Density Plasmas: The Physics of Multiple Crossing Laser Beams

    International Nuclear Information System (INIS)

    Afeyan, Bedros; Hueller, Stefan; Montgomery, David S.; Hammer, James H.; Meezan, Nathan B.; Heebner, John E.

    2016-01-01

    The various implementations of the STUD pulse program (spike trains of uneven duration and delay) for LPI (laser-plasma instability) control were studied in depth, and novel regimes were found. How to generate STUD pulses with large time-bandwidth products, how to measure their optical scattering signatures, and how to experimentally demonstrate their usefulness were explored. Theoretical and numerical studies were conducted on Stimulated Brillouin Scattering (SBS) and Crossed Beam Energy Transfer (CBET) including statistical models. We established how LPI can be tamed and gain democratized in space and time. Implementing STUD pulses on NIF was also studied. Future high rep rate lasers and fast diagnostics will aid in the adoption of the whole STUD pulse program for LPI control in High Energy Density Plasmas (HEDP).

  19. Tongue-Driven Wheelchair Out-Maneuvers the Competition

    Science.gov (United States)

    ... Tongue Drive System headset, magnetic tongue stud and smartphone. Source: Maysam Ghovanloo, Georgia Institute of Technology Participants ... Injury - Spinal Cord Injury Division: Division of Discovery Science & Technology (DDST) RELATED LINKS RSS LISTSERV YOUTUBE FACEBOOK ...

  20. Cathodoluminescence investigations on quartz cement in the sandstones of Khabour Formation from Iraqi Kurdistan Region, Northern Iraq

    DEFF Research Database (Denmark)

    Omer, Muhamed Fakhri; Friis, Henrik

    2014-01-01

    The Ordovician deltaic to shallow marine Khabour Formation in Northern Iraq consists mainly of sandstone with minor siltstone and interbedded shale. The sandstones are pervasively cemented by quartz that resulted in very little preserved primary porosity. Cathodoluminescence and petrographic stud...

  1. Cathodoluminescence investigations on quartz cement in sandstones of Khabour Formation from Iraqi Kurdistan region, northern Iraq

    DEFF Research Database (Denmark)

    Omer, Muhamed Fakhri; Friis, Henrik

    The Ordovician deltaic to shallow marine Khabour Formation in Northern Iraq consists mainly of sandstone with minor siltstone and interbedded shale. The sandstones are pervasively cemented by quartz that resulted in very little preserved primary porosity. Cathodoluminescence and petrographic stud...

  2. Final Report for Statistical Nonlinear Optics of High Energy Density Plasmas: The Physics of Multiple Crossing Laser Beams

    Energy Technology Data Exchange (ETDEWEB)

    Afeyan, Bedros [Polymath Research Inc., Pleasanton, CA (United States); Hueller, Stefan [Centre de Physique Theorique de l' Ecole Polytechnique (France); Montgomery, David S. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Hammer, James H. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Meezan, Nathan B. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Heebner, John E. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-10-24

    The various implementations of the STUD pulse program (spike trains of uneven duration and delay) for LPI (laser-plasma instability) control were studied in depth, and novel regimes were found. How to generate STUD pulses with large time-bandwidth products, how to measure their optical scattering signatures, and how to experimentally demonstrate their usefulness were explored. Theoretical and numerical studies were conducted on Stimulated Brillouin Scattering (SBS) and Crossed Beam Energy Transfer (CBET) including statistical models. We established how LPI can be tamed and gain democratized in space and time. Implementing STUD pulses on NIF was also studied. Future high rep rate lasers and fast diagnostics will aid in the adoption of the whole STUD pulse program for LPI control in High Energy Density Plasmas (HEDP).

  3. 46 CFR 56.25-20 - Bolting.

    Science.gov (United States)

    2010-10-01

    ... steel stud bolts must be threaded full length or, if desired, may have reduced shanks of a diameter not less than that at the root of the threads. They must have heavy semifinished hexagonal nuts in...

  4. How to Select the Right Athletic Shoes

    Science.gov (United States)

    ... its sole. Field sports. Includes shoes for soccer, football, and baseball. These shoes are cleated, studded or ... the heel to the toes while decreasing the forces across the foot. Walking shoes have more rigidity ...

  5. 75 FR 70812 - Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S-92A Helicopters

    Science.gov (United States)

    2010-11-19

    ... introduced a six-stud attachment for the oil filter bowl and more edge distance on the right and left foot.../Component (JASC) Code is 6320: Main Rotor Gearbox. (d) Do the inspections by following the specified...

  6. LIVE CELL IMAGING OF THE OXIDATIVE EFFECTS OF EXPOSURE TO AN ORGANIC PM COMPONENT

    Science.gov (United States)

    RATIONALE. Exposure to ambient particulate matter (PM) has been associated with adverse health effects, including inflammatory responses in the lung. Diesel exhaust particles (DEP) are a ubiquitous contributor of the fine and ultrafine PM burden in ambient air. Toxicological stud...

  7. A Preliminary Review of English Proficiency and Safe Commercial Motor Vehicle Operation.

    Science.gov (United States)

    2008-07-01

    Under sponsorship from the U.S. Department of Transportation Federal Motor Carrier Safety Administration, Office of Bus and Truck Standards and Operations, the John A. Volpe National Transportation Systems Center performed a preliminary research stud...

  8. Abrasion-resistant concrete mix designs for precast bridge deck panels.

    Science.gov (United States)

    2010-08-01

    The report documents laboratory investigations undertaken to develop high performance concrete (HPC) for precast and pre-stressed bridge deck components that would reduce the life-cycle cost of bridges by improving the studded tire wear (abrasion) re...

  9. Ontology for Life-Cycle Modeling of Electrical Distribution Systems: Model View Definition

    Science.gov (United States)

    2013-06-01

    more than 100 sessions at regional and national conventions . He has taught architectural specifications at Harvard University Graduate School of...Equipment List Lighting Layout: Surface finish, clearance Raceway: Above ceiling clearance, wall construction type ( masonry /studs, etc.) Current

  10. Use of micro unmanned aerial vehicles for roadside condition assessment

    Science.gov (United States)

    2010-12-01

    Micro unmanned aerial vehicles (MUAVs) that are equipped with digital imaging systems and global : positioning systems provide a potential opportunity for improving the effectiveness and safety of roadside : condition and inventory surveys. This stud...

  11. Development of teaching material to integrate GT-POWER into combustion courses for IC engine simulations.

    Science.gov (United States)

    2009-02-01

    The main objective of this project was to develop instructional engineering projects that utilize the newly-offered PACE software GT-POWER for engine simulations in combustion-related courses at the Missouri University of Science and Technology. Stud...

  12. Evaluation of deterioration of structural concrete due to chloride intrusion and other damaging mechanisms.

    Science.gov (United States)

    2015-09-01

    Kentucky's bridges continue to age and experience distress. The intrusion of chlorides into : concrete remains the primary mechanism for deterioration. It leads to reinforcing steel corrosion : that damages the adjoining concrete structure. This stud...

  13. Technology Insertion-Engineering Services Process Characterization. Task Order No. 1. (Block 2). Database Documentation Book. Book 1 of 2. OC-ALC MATPCB

    Science.gov (United States)

    1989-09-11

    A 0 jIDO ~~ _ O~V 0_____17 q q 1 0 DCDV qtkw/c-A -itlc 0ODOV __ QbDQVI ODO3V O~DOVO- OcDOIVI OcDOV ___ ___0__ O EDV - OODEJV _ _ __ - 00’DOVI ___ DOV...0.2779 - 0.2789 in. PD ..... 8 -111 41335-M STUD, Mean std size, 0.2789 - 0.2799 in. PD .... 8 -111 41335-H STUD, Max std size, 0.2799 - 0.2809 in. PD...Cont) 12-1-112 23654-L STUD, Min std size, 0.2779 - 0.2789 in. PD .... 8 -112 23654-M STUD, Mean std size, 0.2789 - 0.2799 in. PD . .. 8 -112 23654

  14. High-Luminance Road Surfaces,

    Science.gov (United States)

    1980-12-01

    condition was changed with the decreased use of snow chains and increasing use of studded tires. The studded tires wear down the road surface in a...region, white anorthosite of a uniform and unweathered type is usable as an additive to asphalt con- crete and wear surfacing for asphalt gravel...CLASSIFICATION Of THIS PAGE(W/em Daateoo 20. Abstract (cont’d) resistance to weathering, and the degree of luminosity. Quartzites have the best wear

  15. The effect of mineralogy, texture and mechanical properties of anti-skid and asphalt aggregates on urban dust

    OpenAIRE

    Räisänen, M.; Kupiainen, K.; Tervahattu, H.

    2003-01-01

    In northern latitudes mineral dust is formed when cars use studded tyres and roads are sanded to obtain more traction on the icy surfaces. Anti-skid and asphalt aggregates with different textural, mineralogical and mechanical properties were tested with an indoor road simulator fitted with studded and friction tyres. The particle size distribution and proportions of dust from pavement and anti-skid aggregate were analyzed using SEM-EDX. The wear on the road pavement...

  16. Kinas nye eksportfremstød i Afrika: vedvarende energi

    DEFF Research Database (Denmark)

    Kaae Riis, Martin; Skak, Mette

    2017-01-01

    Jeg min medforfatter stud. scient. pol. Martin Kaae Riis drøfter Kinas grønne eksportfremstød i Afrika mshp Etipien, Sydafrika samt Sao Tome og Principe......Jeg min medforfatter stud. scient. pol. Martin Kaae Riis drøfter Kinas grønne eksportfremstød i Afrika mshp Etipien, Sydafrika samt Sao Tome og Principe...

  17. Properties and toxicological effects of particles from the interaction between tyres, road pavement and winter traction material

    OpenAIRE

    Gustafsson, Mats; Blomqvist, Göran; Gudmundsson, Anders; Dahl, Andreas; Swietlicki, Erik; Bohgard, Mats; Lindbom, John; Ljungman, Anders

    2008-01-01

    In regions where studded tyres and traction material are used during winter, e.g. the Nordic countries, northern part of USA, Canada, and Japan, mechanically generated particles from traffic is the main reason for high particle concentrations in busy street- and road environments. In many Nordic municipalities the European environmental quality standard for inhalable particles (PM10) is exceeded due to these particles. In this study, particles from the wear of studded and studless friction ty...

  18. Magnetic foreign body on the nasal septum

    African Journals Online (AJOL)

    A 9-year-old boy presented to our department 8 days after attempting to insert a non-piercing magnetic ear stud on either side of his nose. He had been unable to remove them, and both magnetic parts of the ear studs were still present in his nose. Examination of the nose was difficult, as he was unco-operative and his nose ...

  19. 道路粉じんによる大気汚染実態把握のための基礎的検討(第1報) : 多元素分析による指標元素の検索

    OpenAIRE

    福崎, 紀夫; 谷中, 隆明; 漆山, 佳雄; 霜鳥, 達雄; 市川, 義夫; Fukuzaki, Norio; Yanaka, Takaaki; Urushiyama, Yoshio; Shimotori, Tatuo; Ichikawa, Yoshio

    1983-01-01

    Non-destructive neutron activation analysis was applied to a research of indicator elements in asphalt, diesel and gasoline engine soot, tire tread, tire stud and road beacon paint that were considered to be structure materials of roadway dust. From the analysis of 38 elements, suitable indicator elements were found, i.e. bromine in gasloline engine soot, tungsten in tire stud tip and chromium in yellow paint but no suitable indicator elements was found in asphalt, tire tread and diesel engin...

  20. Utilization of Phase Change Materials (PCM) to Reduce Energy Consumption in Buildings

    Science.gov (United States)

    2011-09-14

    with stud/ drywall types of construction. Although available in various configurations, the work done by the AFRL focused on a product which had...studs and covered in drywall to simulate installation in a common wall. The wall also contained typical fiberglass insulation. Figure 1 shows PCM... drywall samples, i.e., 5 Distribution A: Approved for public release; distribution unlimited. 88ABW-2012-0179, 10 January 2012 randomly mixed and

  1. Experimental 3-D SAR Human Target Signature Analysis

    Science.gov (United States)

    2014-07-21

    is a fairly transparent one constructed of drywall made of wood studs, gypsum, insulating material, and vinyl coating on the exterior. A LIDAR image...transparent wall such as drywall , there is a significant increase in the amount of clutter and multipath. Figure 8. LIDAR imagery of a human...standing inside a building constructed of drywall made of wood stud, gypsum, insulating material, and vinyl coating. In the human standing images

  2. Towards Cluster-Assembled Materials of True Monodispersity in Size and Chemical Environment: Synthesis, Dynamics and Activity

    Science.gov (United States)

    2016-10-27

    local, microscopy stud -ies, integral studies at ambient pressures have been performed to obtain a systematic insight into cluster ripening control. All...microscopy stud- ies, integral studies at ambient pressures have been performed to obtain a systematic insight into cluster ripening control. All the...namely 1D-PAH chains and size-selective 2D-PAH clusters consisting of 24 carbon atoms (col- laboration with Schaub and Landman group [4]). One crucial

  3. Factors affecting pre-weaning kid mortality in South African Angora ...

    African Journals Online (AJOL)

    The data used for this study were collected in 12 different Angora goat studs from 2000 to 2004. Data collected on 17534 kids born alive in the different studs were included in the analyses. Average pre-weaning mortality rate was 11.5% and ranged from 8.6% to 16.5% (of the 17534 kids born alive, 2018 kids died between ...

  4. Factors affecting non-tailpipe aerosol particle emissions from paved roads: On-road measurements in Stockholm, Sweden

    Science.gov (United States)

    Hussein, Tareq; Johansson, Christer; Karlsson, Hans; Hansson, Hans-Christen

    A large fraction of urban PM 10 concentrations is due to non-exhaust traffic emissions. In this paper, a mobile measurement system has been used to quantify the relative importance of road particle emission and suspension of accumulated dust versus direct pavement wear, tire type (studded, friction, and summer), pavement type, and vehicle speed. Measurements were performed during May-September on selected roads with different pavements and traffic conditions in the Stockholm region. The highest particle mass concentrations were always observed behind the studded tire and the lowest were behind the summer tire; studded-to-summer ratios were 4.4-17.3 and studded-to-friction ratios were 2.0-6.4. This indicates that studded tires lead to higher emissions than friction and summer tires regardless to the asphalt type. By comparing with measurements in a road simulator, it could be estimated that the pavement wear due to the friction tires was 0.018-0.068 of the suspension of accumulated road dust. Likewise for studded tires road-wear was estimated to be 1.2-4.8 the suspension of accumulated dust. This indicates that wear due to friction tires is very small compared to the suspension of accumulated dust and that suspension due to studded tires may sometimes be as large as the wear of the road. But this will vary depending on, e.g. the amount of dust accumulated on the roads. An important dependence on vehicle speed was also observed. During May, the particle mass concentrations behind the studded tire at vehicle speed 100 km h -1 were about 10 times higher than that at 20 km h -1. The speed dependence was not so pronounced in September, which could be due to less accumulated dust on the roads. The particle number size distribution of the emissions due to road wear by studded tire was characterized by a clear increase in number concentrations of the coarse fraction of aerosol particles, with a geometric mean diameter between 3 and 5 μm. The size distribution of the

  5. Positioning means for circumferentially locating inspection apparatus in a nuclear reactor vessel

    International Nuclear Information System (INIS)

    Burns, D.C.

    1980-01-01

    There is provided for a reactor vessel inspection device a support ring sized to accommodate the circular path defined by three or more guide studs extending upwardly from the vessel. The support ring has at least three movably mounted guide stud bushings which can be positionally adjusted to align each bushing with one of the studs. When engaged, the guide studs and bushings yield a coarse positioning of the inspection device relative to the reactor vessel. Also provided are three support legs which are clamped to the support ring and dimensioned to an appropriate length. Two of the support legs have shoes clamped thereto, configured to rest on an internal circumferential flange within the reactor vessel. The third support leg is provided with a specially adapted shoe configured to engage a locating element, the exact position of which is known, within the vessel to achieve fine positioning of the inspection device relative to the reactor vessel. The support ring is additionally provided with an annular key which runs longitudinally about its outer periphery. Clamping means utilized to secure the guide stud bushings and the support legs to the support ring are provided with keyways to insure automatic self-alignment when fully tightened. (auth)

  6. A NOTE ON METHODS FOR THE ESTIMATION OF THE AIRBORNE SOUND INSULATION OF TIMBER FRAME STRUCTURES

    Directory of Open Access Journals (Sweden)

    Jan Šlechta

    2016-04-01

    Full Text Available Acoustic behavior of structures with wooden elements is nowadays of great interest. At the same time, the estimation of the airborne sound insulation of timber frame structures is a complex procedure which includes the prediction of several resonances and the analysis of a significant decrease of the transmission loss in the low frequency range. Three case studies are presented in the paper. The emphasis is put on the transmission loss in 1/3 octave frequency bands of double leaf structures with gypsum panels, wood studs and a well-damped cavity. Methods of Sharp and Davy are used for the transmission loss prediction. Particular issues are discussed for an asymmetrically sheathed timber frame structure, wood studs with resilient channels and staggered studs. The paper also presents that the weighted sound reduction index is not sufficient quantity for characterizing the airborne sound insulation of timber frame structures. Various methods are employed for the calculation of the transmission loss of a traditional structure on a silicate base. Characteristic differences between a silicate based structure and a timber frame structure are highlighted. The usage of the spectrum adaptation terms is encouraged. The paper intends to be helpful in the field of the transmission loss estimation of double leaf structures with wood studs. Since the acoustic behavior of double leaf structures with wood studs is certainly a complex phenomenon, there is a further need for an improvement of methods for the transmission loss estimation and single number quantities for the evaluation of the sound insulation.

  7. The influence of finite cavities on the sound insulation of double-plate structures.

    Science.gov (United States)

    Brunskog, Jonas

    2005-06-01

    Lightweight walls are often designed as frameworks of studs with plates on each side--a double-plate structure. The studs constitute boundaries for the cavities, thereby both affecting the sound transmission directly by short-circuiting the plates, and indirectly by disturbing the sound field between the plates. The paper presents a deterministic prediction model for airborne sound insulation including both effects of the studs. A spatial transform technique is used, taking advantage of the periodicity. The acoustic field inside the cavities is expanded by means of cosine-series. The transmission coefficient (angle-dependent and diffuse) and transmission loss are studied. Numerical examples are presented and comparisons with measurement are performed. The result indicates that a reasonably good agreement between theory and measurement can be achieved.

  8. نظرية الذكاءات المتعددة كمدخل لتعليم ذوي صعوبات تعلم الرياضيات

    Directory of Open Access Journals (Sweden)

    سمية بعزي

    2014-06-01

    Full Text Available Studding students having mathematics learning difficulties with the theory of multiple intelligences Strategies of studding students having mathematics learning difficulties were often based on the improvement of the low capacity more the investment in their strengths. So the recent study goes to move from the traditional method of teaching and learning to the recent method in the treatment of those difficulties. According to the theory of multiple intelligences, the recent stylefocuses on the differentiation of students and it considers that any individual has nine intelligences work independently, and defines the access to educational applications for studding students having mathematics difficulties, depending on the knowledge of their strengths and weakness abilities, so teaching methods improve and invest in strong abilities and intelligences of students as strengths . The theory of multiple intelligences can also help teachers to identify and determinate strengths of student having difficulty learning mathematics, and the most appropriate style learning towards themes.

  9. Effect of Söderberg smelting technology, anode paste composition, and work shift on the relationship between benzo[a]pyrene and individual polycyclic aromatic hydrocarbons.

    Science.gov (United States)

    Sanderson, Eric; Kelly, Peter; Farant, Jean-Pierre

    2005-02-01

    This follow-up study of Farant and Gariepy study investigates the relationship between benzo[a]pyrene (B[a]P) and other polycyclic aromatic hydrocarbons (PAHs) found in coal tar pitch volatiles in two types of Soderberg aluminum smelters-horizontal and vertical stud. The study confirms the strong relationships between B[a]P and total PAHs, and that B[a]P was a good indicator for other PAHs in this industry. The PAH profiles were consistent within each smelter, but the smelter technology used and the changes in the raw material formulation resulted in significantly different profiles. B[a]P toxic equivalency factors for emitted PAH mixtures were greater in the horizontal stud smelter than in the vertical stud smelter. Overall, this study illustrates the potential usefulness of B[a]P relative abundance ratios to simplify exposure assessment in the workplace and reduce associated costs.

  10. Positioning means for circumferentially locating inspection apparatus in a nuclear reactor vessel

    International Nuclear Information System (INIS)

    Burns, D.C.

    1979-01-01

    Positioning means for locating inspection apparatus used to volumetrically examine a nuclear reactor vessel is disclosed. The positioning means is provided with a support ring having an annular key positioned longitudinally about its periphery. Three support legs are attached to the support ring by brackets adapted to fit the annular key. The support ring also carries three guide stud bushings which are movably mounted by clamps adapted to engage the support ring key. Prior to lowering the inspection apparatus into the vessel, the guide stud bushings are each moved to a point of alignment with one of three guide studs extending upwardly from the vessel. After alignment has been verified, the guide stud bushings are clamped in position. The inspection apparatus is lowered towards its fully seated position within the vessel and is coarsely circumferentially positioned with by the engagement of the guide studs within the guide stud bushings. A fine degree of circumferential positioning is achieved by providing a specially configured shoe for one of the support legs. With the core barrel internals in, the special shoe is adapted to key onto a core barrel pin the exact location of which is known. With the core barrel internals removed, the special shoe is adapted to place a locating key into a notch in a vessel flange, the location of which is known. As the inspection apparatus is lowered into its fully seated position, exact circumferential positioning with respect to the vessel is achieved. The other support legs rest on an inner circumferential flange so that no portion of the inspection apparatus touches or threatens the vessel's top flange. 19 claims

  11. Aging treatment characteristics of solder bump joint for high reliability optical module

    International Nuclear Information System (INIS)

    Kim, Kyung-Seob; Yu, Chung-Hee; Yang, Jun-Mo

    2004-01-01

    The joint strength and fracture surfaces of Sn-37 mass% Pb and Au stud bumps for photo diode packages after isothermal aging testing were studied experimentally. Al/Au stud bumps and Cu/Sn-37 mass% Pb solders were adopted, and aged for up to 900 h to analyze the effect of intermetallic compound (IMC). The joint strength decreased with aging time. The diffraction patterns of Cu 6 Sn 5 , scallop-shaped IMCs, and planar-shaped Cu 3 Sn were characterized using transmission electron microscopy (TEM). The formation of Kirkendall voids and the growth of IMCs at the solder were found to be a possible mechanism for joint strength reduction

  12. Teaching: in light of Noel Gough's and Ajay Sharma's articles

    Science.gov (United States)

    Pouliot, Chantal

    2017-12-01

    In their articles, Ajay Sharma (Cult Stud Sci Educ, doi: 10.1007/s11422-017-9835-z, 2017) and Noel Gough (Cult Stud Sci Educ, doi: 10.1007/s11422-017-9834-0, 2017) shed light on the impact neoliberalism has on the teaching of science and suggest ways to ensure that science education remains critical and socially equitable. In this paper, I illustrate how their proposals influenced my instructional choices during the fall of 2016 in a course entitled Epistemology and Education.

  13. M ud indu plants Mill sp. uction s of pig ] cultiv

    African Journals Online (AJOL)

    SAM

    present stud ants in Mur tested, lowe ration of BA on explants. of the regene ridia were als resence of N imary roots. gL-1 of NAA. ing from 40-8 ion, organoge e world whose shney et al., 20. 1793038. phthalene acet ... source of protein (with 20 to 22% protein by dry weight) especially in vegetarian diets (Duke, 1981).

  14. Short communication Parentage verification of South African Angora ...

    African Journals Online (AJOL)

    ***

    In this study the aim was to refine a panel of microsatellite markers suitable for parentage verification in South African Angora goats. Blood samples (5 mL) were annually collected in EDTA tubes from a number of Angora stud herds participating in the Small-stock Bio-bank at Grootfontein Agricultural Development Institute ...

  15. Prevention of obesity relatred metabolic diseases by processed foods containing soluble dietary fibers and flavonoids (abstract)

    Science.gov (United States)

    Asians and other non-caucasians are generally more susceptible to obesity related chronic diseases such as type 2 diabetes and cardiovascular disease. Viscous soluble dietary fibers such as cereal beta-glucans and psyllium reduce plasma cholesterol and postprandial glycemia in humans. We have stud...

  16. Determination of metabolic resistance mechanisms in pyrethroid-resistant and fipronil-tolerant brown dog ticks

    Science.gov (United States)

    Rhipicephalus sanguineus (Latreille) (Ixodida: Ixodidae) is a three-host dog tick found worldwide that is able to complete its’ entire lifecycle indoors. Options for the management of R. sanguineus are limited and its’ control relies largely on only a few acaricidal active ingredients. Previous stud...

  17. Ondersoek na seleksiemaatstawwe by Afrinoskape. Genetiese ...

    African Journals Online (AJOL)

    Investigation of selection criteria for Afrino sheep. Genetic parameters of growth and wool traits. The data used in this study were obtained from the Carnarvon Afrino stud. The genetic and phenotypic parameters for the various growth and wool traits were estimated by means of Henderson's Method III. The following traits ...

  18. Motor-driven screwing and transporting tool for pressure vessels, especially pressure vessels for nuclear reactors

    International Nuclear Information System (INIS)

    Scholz, M.

    1976-01-01

    A screwing and transporting device for tensioning and loosening the reactor pressure vessel head is described. The advantage of the tool is its ability to unscrew the stud bolts from the lower part of the pressure vessel, too, and therefore make them accessible for in-service inspection. (TK) [de

  19. Challenges for extension service to render efficient post-transformer ...

    African Journals Online (AJOL)

    LPhidza

    2005-07-27

    Jul 27, 2005 ... ABSTRACT. Veldram performance testing has been conducted over a period of 14 years (1988 to .... Rams with an ADG index higher than 80 (85 for stud rams), a positive semen quality and classed by the ..... ram breeders to evaluate rams for genetic excellence and also perceived as such by the buyers of ...

  20. Intelligence and Prosocial Behavior

    DEFF Research Database (Denmark)

    Han, Ru; Shi, Jiannong; Yong, W.

    2012-01-01

    Results of prev ious studies of the relationship between prosocial behav ior and intelligence hav e been inconsistent. This study attempts to distinguish the dif f erences between sev eral prosocial tasks, and explores the way s in which cognitiv e ability inf luences prosocial behav ior. In Stud...

  1. Maailma sporthobuste kasvatajad Inglismaal. I-II osa / Raigo Kollom

    Index Scriptorium Estoniae

    Kollom, Raigo, 1936-

    2013-01-01

    Maailma Sporthobuste Kasvatajate Föderatsiooni peaassambleel Inglismaal Newmarketi väikelinnas toimunud külastustest British Racing School'i, British Racing Museum'i ning Dubai valitseja ja Araabia Ühinenud Emiraatide asepresidendi šeik Mohammed bin Rashid Al Maktoumi hobusekasvandusse Darley Stud

  2. environmental education for port elizabeth schools

    African Journals Online (AJOL)

    contributed to tne development of environmental stud1es for primary schools in Port Elizabeth. At first, the Education. Officer of the museum led all excursions to study sites. In or:der to encourage ... educative function in the formal sector. Lesson ... the development of environmental education programmes for higher primary ...

  3. A TOOL FOR PLANNING AERIAL PHOTOGRAPHY

    Science.gov (United States)

    abstract The U.S. EPAs Pacific Coastal Ecology Branch has developed a tool in the form of an Excel. spreadsheet that facilitates planning aerial photography missions. The spreadsheet accepts various input parameters such as desired photo-scale and boundary coordinates of the stud...

  4. Improvement of Strength on Local Pottery Clays by Traditional ...

    African Journals Online (AJOL)

    The effect of ageing on various parameters such as particle size distribution, specific surface area, dry strength, shrinkage, fired strength, bulk density, and moisture content of clay was stud-ied. The results indicate that ageing introduces finer particle sizes due to a progressive increase in the proportion of the fine particles as ...

  5. (Dis)connections between Specific Language Impairment and Dyslexia in Chinese

    Science.gov (United States)

    Wong, Anita M.-Y.; Ho, Connie S.-H.; Au, Terry K.-F.; Kidd, Joanna C.; Ng, Ashley K.-H.; Yip, Lesley P.-W.; Lam, Catherine C.-C.

    2015-01-01

    Specific language impairment (SLI) and dyslexia are found to co-occur in school-aged children learning Chinese, a non-alphabetic language (Wong, Kidd, Ho, & Au in "Sci Stud Read" 14:30--57, 2010). This paper examined the "Distinct" hypothesis--that SLI and dyslexia have different cognitive deficits and behavioural…

  6. Association of GSTP1 gene (I105V) polymorphism with acute ...

    Indian Academy of Sciences (India)

    interfering with cellular protection against oxidative stress. Several studies had also reported significant association of valine allele with susceptibility to develop tumours of blad- der, breast, lung, and multiple myeloma (Ryberg et al. 1997;. Helzlsouer et al. 1998; Maggini et al. 2008). Previous stud- ies showed that GSTP1 ...

  7. Optimization method for quantitative calculation of clay minerals in soil

    Indian Academy of Sciences (India)

    Therefore, we rec- ommend employing Matlab to solve equations of the kind discussed here. In conclusion, using optimization methods to calculate the clay mineral contents in soil is viable based on the chemical analysis data. Further stud- ies combining this method with X-ray diffraction, differential thermal, and infrared ...

  8. The effect of a single oral megadose of vitamin D provided as either ergocalciferol (D2) or cholecalciferol (D3) in alcoholic liver cirrhosis

    DEFF Research Database (Denmark)

    Knudsen, Mikkel Malham; Jørgensen, S. P.; Lauridsen, A. L.

    2012-01-01

    Objective: The goal of this study was to examine the effects of a single oral dose of 300 000 international units of either ergocalciferol (D2) or cholecalciferol (D3) on the plasma levels of 25-hydroxyvitamin D in patients with alcoholic liver cirrhosis. Methods: Inclusion criteria for this stud...

  9. Evaluation practice: how to do good evaluation research in work settings

    National Research Council Canada - National Science Library

    Gilson, Stephen French; DePoy, Elizabeth

    2008-01-01

    ... services. This book is eloquent, simple, and profound."- Laura Gitlin, Center for Applied Research on Aging and Health, Jefferson College of Health Professions "I know of no other text that offers such a comprehensive perspective on evaluation, nor one that covers both qualitative and quantitative methodologies in such an even-handed fashion. When stud...

  10. Studies on dehydrogenation of cyclohexanol to cyclohexanone over ...

    Indian Academy of Sciences (India)

    B SRIDEVI

    2. Experimental. 2.1 Preparation of SBA-15. The parent mesoporous SBA-15 silica support was synthe- sized hydrothermally under acidic medium using triblock co-polymer (P123) as a ... reactor containing an automatic six port valve with a loop of known volume ..... Prasad P S, David Raju B and Rama Rao K S 2015 Stud-.

  11. CONVERGENCE OF POWERS OF CONTROLLABLE INTUITIONISTIC FUZZY MATRICES

    OpenAIRE

    Riyaz Ahmad Padder; P. Murugadas

    2016-01-01

    Convergences of powers of controllable intuitionistic fuzzy matrices have been stud¬ied. It is shown that they oscillate with period equal to 2, in general. Some equalities and sequences of inequalities about powers of controllable intuitionistic fuzzy matrices have been obtained.

  12. Transcriptomic Analysis of Host Immune Response in the Skin of Chickens Infected with Marek's Disease Virus

    Science.gov (United States)

    Marek’s disease virus, a highly cell-associated oncogenic 'alpha-herpesvirus, is the causative agent of a T cell lymphoma and neuropathic disease called Marek’s disease. The skin is the only anatomical site where infectious enveloped cell-free virions are produced and shed into the environment. Stud...

  13. Exploring Chinese students’ experience of curriculum internationalisation: A comparative study of Scotland and Australia

    OpenAIRE

    Cheng, M.; Adekola, O.; Shah, M.; Valyrakis, M.

    2016-01-01

    Increasing enrolment of Chinese students has become a key feature of internationalisation for Western universities, but there is limited research into how curriculum internationalisation affects Chinese students’ learning experiences. Using the typologies of curriculum Internationalisation as a framework, this paper explores and compares how Scottish and Australian universities integrate international and intercultural elements into their curriculum to support Chinese postgraduate taught stud...

  14. Psychometric Analysis of the Orientations to Happiness Questionnaire in Taiwanese Undergraduate Students

    Science.gov (United States)

    Chen, Lung Hung; Tsai, Ying-Mei; Chen, Mei-Yen

    2010-01-01

    The aim of this study was to examine the psychometric properties of the Orientations to Happiness Questionnaire (OHQ; Peterson et al. in "J Happiness Stud" 6(1):25-41, 2005) in Taiwanese students. The participants were 578 undergraduate students (M[subscript age] = 18.64, SD = 1.02) and completed the OHQ, satisfaction with life scale…

  15. Lower limb and associated injuries in frontal-impact road traffic ...

    African Journals Online (AJOL)

    Abstract. Objectives: To study the relationship between severity of injury of the lower limb and severity of injury of the head, thoracic, and abdominal regions in frontal-impact road traffic collisions. Methods: Consecutive hospitalised trauma patients who were involved in a frontal road traffic collision were prospectively stud-.

  16. Mesoporous silica supported Pd/Ag bimetallic nanoparticles as a ...

    Indian Academy of Sciences (India)

    Priyanka Verma

    2017-09-19

    Sep 19, 2017 ... ... and applications of plas- monic photocatalysts have led to the tremendous efforts and rapid developments in this branch of photocatalysis during the last few years. Metal nanostructures based heterogeneous photocatalyst is being extensively stud- ied to design visible light sensitive composite materials.

  17. Preparation, dielectric and a.c. conductivity studies on chemically ...

    African Journals Online (AJOL)

    user

    Electrical properties of natural fiber reinforced polymer composites indicates their suitability as dielectric materials in microchips, part of transformers , suspension insulators , bushings, studs, sleeves and switch boards. These materials can also be easily employed for multi-function applications such as the hollow cellular ...

  18. triazole-based bidentate Schiff bases

    Indian Academy of Sciences (India)

    observed by Carl Zeiss Axioskop 40 polarizing microscope equipped with a Linkam LTS 350 hot stage and TMS94 temperature controller. The samples stud- ..... Jung B M, Huang Y D and Chang J Y 2010 J. Liq. Cryst. 37 85. 4. Cardinaels T, Ramaekers J, Guillon D, Donnio B and. Binnemans K 2005 J. Am. Chem. Soc.

  19. An evaluation of the cost effectiveness of D-cracking preventive measures : executive summary.

    Science.gov (United States)

    2001-09-01

    D-cracking has long been a serious problem in the deterioration of concrete pavements in severe weather climates. After much research, the mechanics and variables involved in the destructive forces of concrete D-cracking are becoming known. This stud...

  20. Development of a Mixture Design Procedure for Stone Matrix Asphalt

    Science.gov (United States)

    1997-03-01

    Stone Matrix Asphalt (SMA) has been used successfully in Europe for over 20 : years to provide better rutting resistance and to resist studded tire wear. : Since 1991, the use of SMA has increased steadily in the United States. At : present, some sta...

  1. Nine novel microsatellite markers for the army ant Simopelta pergandei (subfamily Ponerinae)

    DEFF Research Database (Denmark)

    Kronauer, D.J.C.; Boomsma, J.J.; Pierce, N.E.

    2011-01-01

    Simopelta (subfamily Ponerinae) army ants are specialized predators of other ants in New World tropical forests. Although they show a striking convergence in overall life-history with the well known army ants of the subfamilies Aenictinae, Dorylinae, and Ecitoninae, the genus has been little stud...

  2. The potential protective effects of erythropoietin and estrogen on ...

    African Journals Online (AJOL)

    Noha I. Hussien

    2015-12-30

    Dec 30, 2015 ... Abstract Background: Renal ischemia–reperfusion (RIR) is an important etiopathological mech- anism of acute renal failure (ARF). Erythropoietin (EPO) has been candidate as a nephroprotectant agent. However, its nephroprotective effect when it is accompanied with estrogen has not been stud-.

  3. Independent vector analysis for capturing common components in fMRI group analysis

    DEFF Research Database (Denmark)

    Engberg, Astrid Margareta Elisabet; Andersen, Kasper W.; Mørup, Morten

    2016-01-01

    Independent component analysis (ICA) is a widely used blind source separation method for decomposing resting state functional magnetic resonance imaging (rs-fMRI) data into latent components. However, it can be challenging to obtain subject-specific component representations in multi-subject stud...

  4. Artefact biography 2.0 : the information value of corroded archaeological bronzes

    NARCIS (Netherlands)

    Nienhuis, J.

    2017-01-01

    The different phases in the life of archaeological objects can be described by artefact biography. This dissertation defines an updated version: artefact biography 2.0, and the life phases of Early Iron Age bronze studs from Oss-Zevenbergen, the Netherlands, are elaborated. Throughout the thesis,

  5. Whole wheat bread: Effect of bran fractions on dough and end-product quality

    Science.gov (United States)

    Consumption of whole-wheat based products is encouraged due to its important nutritional elements that beneficial to human health. However, processing of whole-wheat based products, such as whole-wheat bread, results in poor end-product quality. Bran was postulated as the major problem. In this stud...

  6. Correlating levels of type III secretion and secreted proteins with fecal shedding of Escherichia coli O157:H7 in cattle

    Science.gov (United States)

    The locus of enterocyte effacement (LEE) encodes a type III secretion system (T3SS) for secreting factors that enable Escherichia coli O157:H7 to produce attaching and effacing lesions (A/E) on epithelial cells. The importance of LEE-encoded proteins in intestinal colonization of cattle is well-stud...

  7. Checklist of the birds of Aruba, Curaçao and Bonaire, South Caribbean

    NARCIS (Netherlands)

    Prins, T.G.; Reuter, J.H.; Debrot, A.O.; Wattel, J.; Nijman, V.

    2009-01-01

    We present an updated checklist of the birds of the islands of Aruba, Curaçao and Bonaire, and the islets of Klein Curaçao and Klein Bonaire, southern Caribbean, and compare this with earlier checklists (K.H. Voous, Stud. Fauna Curaçao Carib. Isl. 7: 1-260, 1957; Ardea 53: 205-234, 1965; Birds of

  8. Genetic study of scheduled caste populations of Tamil Nadu

    Indian Academy of Sciences (India)

    The present study aims to describe the genetic structure of the scheduled caste populations in Tamil Nadu state, and to assess their relationships with contemporary people of dif- ferent socio-economic groups of the state. We have stud- ied eight human-specific indels (insertion/deletion polymor- phisms) in DNA samples ...

  9. Revised models and genetic parameter estimates for production and ...

    African Journals Online (AJOL)

    Genetic parameters for production and reproduction traits in the Elsenburg Dormer sheep stud were estimated using records of 11743 lambs born between 1943 and 2002. An animal model with direct and maternal additive, maternal permanent and temporary environmental effects was fitted for traits considered traits of the ...

  10. Body weight and growth rate of South African Angora goat kids ...

    African Journals Online (AJOL)

    grethas

    reproductive performance and kid mortality aspects in South African Angora goats. This study was conducted from 2000 to 2004 on 12 South African Angora goat studs, kept under a variety of management systems. Apart from reproductive data, body weights of ewes and kids were recorded at various stages.

  11. Author Details

    African Journals Online (AJOL)

    Cloete, SWP. Vol 33, No 2 (2003) - Articles The influence of separate-sex rearing on ostrich behaviour and skin damage. Abstract PDF · Vol 33, No 4 (2003) - Articles Revised models and genetic parameter estimates for production and reproduction traits in the Elsenburg Dormer sheep stud. Abstract PDF · Vol 33, No 4 ...

  12. The heritability of acceptability in South African Merino sheep ...

    African Journals Online (AJOL)

    Selection for production and reproduction in South African Merino sheep is always combined with selection based on visual appraisal and will, in all probability, remain so for many years to come. Heritabilities for acceptability were estimated using a threshold model to analyse data from two parent Merino studs. Effects ...

  13. Anisotropic cosmological models and generalized scalar tensor theory

    Indian Academy of Sciences (India)

    Abstract. In this paper generalized scalar tensor theory has been considered in the background of anisotropic cosmological models, namely, axially symmetric Bianchi-I, Bianchi-III and Kortowski–. Sachs space-time. For bulk viscous fluid, both exponential and power-law solutions have been stud- ied and some assumptions ...

  14. 3D Integration of MEMS and IC: Design, technology and simulations

    OpenAIRE

    Schjølberg-Henriksen, Kari

    2009-01-01

    * 3D integration: Opportunities and trends* e-CUBES: Tire pressure monitoring system (TPMS)* Package design including thermo-mechanical modeling* Technology development* Sensor packaging concept* Gold stud bump bonding* Device characterization and testing* Summary and outlook 3D Integration of MEMS and IC: Design, technology and simulations

  15. In Response to David Greenwood's "Place Mobility and Faculty Life: Mindfulness through Change" through the Lens of Science Teacher Education Programs

    Science.gov (United States)

    Nyaema, Mary K.

    2017-01-01

    In writing this review, I draw on the experience of David Greenwood ("Cult Stud Sci Educ" 10:5-16, 2015) whose ethnographic study sheds light on his growth as a faculty member who has taught in various settings that are quite different from the culture that he grew up with. I extend his thoughts on ecological mindfulness to encompass a…

  16. Coordination Chemistry of Life Processes: Bioinorganic Chemistry ...

    Indian Academy of Sciences (India)

    goal of an interdisciplinary field like bioinorganic chem- istry is the development of small inorganic ... today's inorganic chemistry research cen tres around Werner's co- ordination theory. Therefore it would be most ..... suitable crystals, but biochemical, spectroscopic and kinetic stud- ies have provided considerable insight ...

  17. SYNCHRONISATION OF OESTRUS IN SHEEP EARLY IN THE ...

    African Journals Online (AJOL)

    Department of Animal Physiologlt, University of Stellenbosch, Stellenbosch. OPSOMMING: SINKRONISASIE VAN OESTRUS ..... The previous lambing history of this stud also indi- cated that the maiden ewes had a shorter ... insemination and fertility in cattle, while the beneficial effects on fertility of the inclusion of antibiotics ...

  18. Anaerobiosis induced virulence of Salmonella typhi

    DEFF Research Database (Denmark)

    Kapoor, Sarika; Singh, R D; Sharma, P C

    2002-01-01

    BACKGROUND & OBJECTIVES: Anaerobic conditions are frequently encountered by pathogens invading the gastrointestinal tract due to low/limiting oxygen conditions prevalent in the small intestine. This anaerobic stress has been suggested to enhance the virulence of gut pathogens. In the present stud...... dismutase (SOD) and catalase. INTERPRETATION & CONCLUSION: Our results suggest that exposure of S. Typhi to anaerobic conditions enhances its virulence....

  19. Implementing an Evidence Based Preceptorship Program in a Military Center

    Science.gov (United States)

    2014-11-05

    Francis LJ, Robbins M, Craig C. Two different operationalisations of psychological type: comparing the Myers - Briggs Type Indicator and the Keirsey...Dev. May-Jun 2006;22(3):150-156. • Quinn MT, Lewis R, Fischer K. A cross-correlation of the Myers - Briggs and Keirsey instruments. J Coll Stud Develop

  20. Data from clinical database on septic shock are valid

    DEFF Research Database (Denmark)

    Grønlykke, Lars; Brandstrup, Sofie Louise Rygaard; Perner, Anders

    2012-01-01

    Clinical databases have become important tools in intensive care. Disease severity and organ dysfunction scoring systems are registered in the databases, including the Simplified Acute Physiology Score II (SAPS II) and the Sequential Organ Failure Assessment (SOFA) score. The purpose of this stud...

  1. The school nutrition program's role in weight management of 4th grade elementary students

    Science.gov (United States)

    We are attempting to uncover the school nutrition program's role in weight management of 4th grade elementary students. Data was collected within a time frame for the food frequency questionnaire (FFQ) set at two months at the WT Cheney Elementary School and South Wood Elementary for 4th grade stud...

  2. Equine viral arteritis in breeding and sport horses in central Spain

    NARCIS (Netherlands)

    Cruz-Lopez, Fatima; Newton, Richard; Sanchez-Rodriguez, Ana; Ireland, Joanne; Mughini-Gras, Lapo; Moreno, Miguel A; Fores, Paloma

    2017-01-01

    Equine viral arteritis (EVA) may have a high economic impact on breeding stud farms due to the occurrence of EVA-associated abortion outbreaks and the ability of the virus to persist in carrier stallions. While the consequences of EVA in premises with sport horses are usually less severe, the first

  3. Autori e scuole di pensiero nella dimensione educativa internazionale

    Directory of Open Access Journals (Sweden)

    Claudia Secci

    2009-08-01

    Full Text Available Author tells about the important rule of UNESCO around educational theory. It’s necessary reading again the category of care in education and the essay presents many interesting stud-ies in deep about three authors: Maritain, Freire and Morin.

  4. What Students and Researchers in Nanoscience and Nanotechnology Should Know about PUS and STS: A Look at Fages and Albe's Viewpoint on Social Issues in Nanoscience and Nanotechnology Master's Degrees

    Science.gov (United States)

    Pouliot, Chantal

    2015-01-01

    In this paper, in order to pursue the conversation begun by Fages and Albe ("Cult Stud Sci Educ" 2014), I highlight three conceptual contributions that could be made by familiarizing nanoscience and nanotechnology researchers and engineers with the work being carried out in science and technology studies and public understanding of…

  5. The early history of modern ecological economics

    DEFF Research Database (Denmark)

    Røpke, Inge

    2004-01-01

    This paper provides a historical perspective for the discussion on ecological economics as a special field of research. By studying the historical background of ecological economics, the present discussions and tensions inside the field might become easier to understand and to relate to. The stud...

  6. Faunal changes along a vegetation gradient in the Alexandria ...

    African Journals Online (AJOL)

    1994-11-18

    Nov 18, 1994 ... Kusduine word gekenmerk deur hul grens met die see en die gevolglike gradient in fisiese faktore en plantegroei loodreg met die kus. Die huidige stud ie, onderneem in die Alexandria duineveld, het die volgende hipotese ge- toets: veranderinge in dieregemeenskappe oor so 'n gradient word bepaal deur ...

  7. RARβ gene methylation is a candidate for primary glioblastoma ...

    African Journals Online (AJOL)

    and p15/INK4. These hypermethylated genes have been reported as a marker for prognosis, treatment pro- tocol selection and survival for GBM patients1,7. Abnormal DNA methylation of brain tumors was first discovered 20 years ago and previous methylation stud- ies for candidate genes in brain tissue have concentrated.

  8. Total liquid routes and anti-icing liquids.

    Science.gov (United States)

    2013-10-01

    INDOT has successfully used salt brine in antiicing efforts as a way to deliver preventative treatment before an event (e.g. bridge deck : frost) occurs. In 2011 INDOT wanted to investigate the use of salt brine in deicing operations. This stud...

  9. Generalized Cole–Hopf transformations for generalized Burgers ...

    Indian Academy of Sciences (India)

    2015-10-15

    Oct 15, 2015 ... PRAMANA c Indian Academy of Sciences. Vol. 85, No. 5. — journal of. November 2015 physics pp. 861–867. Generalized Cole–Hopf transformations for ..... 42, 1157 (1982). [9] G W Bluman, SIAM J. Appl. Math. 43, 1259 (1983). [10] P L Sachdev and B Mayil Vaganan, Stud. Appl. Math. 87, 213 (1992).

  10. Keystone Symposia on Epigenomics and Chromatin Dynamics

    DEFF Research Database (Denmark)

    Ravnskjær, Kim

    2012-01-01

    Keystone Symposia kicked off the start of 2012 with two joint meetings on Epigenomics and Chromatin Dynamics and a star-studded list of speakers. Held in Keystone, CO, January 17-22, and organized by Steven Jacobsen and Steven Henikoff and by Bradley Cairns and Geneviève Almouzni, respectively...

  11. Electric field dependence of the electron mobility in bulk wurtzite ZnO

    Indian Academy of Sciences (India)

    Science Department, Teachers College, King Saud University, Riyadh 11451, Saudi Arabia ... The electric field dependence of the electron mobility in bulk wurtzite zinc oxide (ZnO) material is stud- ied. ... results show that above nearly 50 K the electrical conduction is governed by activation through the bulk material and the ...

  12. Lumber recovery from insect-killed lodgepole pine in the northern Rocky Mountains.

    Science.gov (United States)

    Marlin E. Plank

    1984-01-01

    A total of 496 logs from lodgepole pine (Pinus contorts Dougl. ex Loud.) trees killed by the mountain pine beetle (Dendroctonus ponderosae Hopk.) were compared with 189 logs from similar live trees. Logs were processed through a stud mill. In most cases lumber recovery from trees dead 1 to 3 years was the same as that from live...

  13. Changes in product recovery between live and dead lodgepole pine: a compendium.

    Science.gov (United States)

    Thomas D. Fahey; Thomas A. Snellgrove; Marlin E. Plank

    1986-01-01

    Six studies were used to compare differences in recovery of volume and value among live, recent dead, and older dead lodgepole pine (Pinus contorts Dougl. ex Loud.) in the Western United States. The products studied included boards, random-length dimension, studs, and veneer. For the average size log (12 cubic feet) absolute values were highest for boards, followed by...

  14. Electrochemical preparation of nitrogen-doped graphene quantum ...

    Indian Academy of Sciences (India)

    erties as well as its chemical reactivity towards many catalytic ... modelling and simulation groups.15 N-GQDs have been stud- .... X-ray photo- electron spectroscopy (XPS) measurements were carried out on a VG MicroTech ESCA 3000 instrument at a pressure of. >1×10−9 Torr (pass energy of 50 eV, electron takeoff angle.

  15. Muscle activation during selected strength exercises in women with chronic neck muscle pain

    DEFF Research Database (Denmark)

    Andersen, L.L.; Kjaer, M.; Andersen, C.H.

    2008-01-01

    Background and Purpose. Muscle-specific strength training has previously been shown to be effective in the rehabilitation of chronic neck muscle pain in women. The aim of this stud), was to determine the level of activation of the neck and shoulder muscles using surface electromyography (EMG) (lu...

  16. Type I hair cell degeneration in the utricular macula of the waltzing guinea pig

    DEFF Research Database (Denmark)

    Severinsen, Stig A; Raarup, Merete Krog; Ulfendahl, Mats

    2008-01-01

    Waltzing guinea pigs are an inbred guinea pig strain with a congenital and progressive balance and hearing disorder. A unique rod-shaped structure is found in the type I vestibular hair cells, that traverses the cell in an axial direction, extending towards the basement membrane. The present stud...

  17. A career in mathematics

    Indian Academy of Sciences (India)

    Lawrence

    I studied in the first two years of college were world history, eco- nomics, civics and Sanskrit. I enjoyed them all. Later on however,. I realized that though I enjoyed studying pure maths, I was not familiar with a lot of applications of maths because I had not stud- ied physics enough. I would now advise anyone who wants to ...

  18. Self-assessment in an open online environment: affordances and practices

    NARCIS (Netherlands)

    Firssova, Olga; Brouns, Francis; Joosten-ten Brinke, Desirée

    2018-01-01

    In MOOCs both designed and emerging self-assessments depend on available technologies and their affordances. Learners determine, however, whether these technologies are used as intended, to what extent and to what effect. Stud-ying MOOC self-assessment practice can help understand the mechanisms

  19. Array-CGH detection of three cryptic submicroscopic imbalances in ...

    Indian Academy of Sciences (India)

    Here, we describe a phenotypically normal prenatal case who was found to carry an apparently balanced CCR on the basis of G-banding and FISH. The rearrangement, which in- volved three chromosomes and three breakpoints, was stud- ied by high-resolution genomic array, and three cryptic im- balances were detected.

  20. Army Reserve Component Personalized Empowerment Program (ARCPEP)

    Science.gov (United States)

    2010-10-01

    in U.S. hospitals—2007. Am J Health Syst Pharm 2008; 65:2244-64 2. Hardiker NR, Grant MJ. Barriers and facilitators that affect public engagement with eHealth services. Stud Health Technol Inform 2010; 160:13-7

  1. Isolation and characterization of microsatellite DNA loci from Sillago ...

    Indian Academy of Sciences (India)

    species, Sillago sinica (Perciformes: Sillaginidae), from coastal waters of China. Zool. Stud. 50, 254–263. Lee C.-S., Hu F. and Hirano R. 1981 Salinity tolerance of fertilized eggs and larval survival in the fish Sillago sihama. Mar. Ecol. Prog. Ser. 4, 169–174. Lu Z.-B., Chen X. and Du J.-G. 2008 The population dynamics.

  2. Large-scale confirmatory tests of a phytosanitary irradiation treatment against Sternochetus frigidus (F.) in Philippine mango

    Science.gov (United States)

    The mango pulp weevil, Sternochetus frigidus (F.) is an important quarantine pest preventing the export of mangoes from the Philippines to the United States and other countries. Previously, a radiation dose of 100 Gy was proposed for phytosanitary treatment of S. frigidus based on dose-response stud...

  3. Chondrosarcoma in Hereditary Multiple Exostosis

    African Journals Online (AJOL)

    1974-04-06

    Apr 6, 1974 ... The other bones in the amputated limb were studded with typical benign ... patients); and lastly those with unequivocal clinical, radio- logical and ... CASE REPORTS. Group I. In 15 patients a chondrosarcoma was suspected merely because a large and heavily calcified tumour was discovered on routine ...

  4. Mizan 3.1 (b) Text, corrected

    African Journals Online (AJOL)

    eliasn

    Tsegaye Regassa (LL.B, LL.M, PhD. Candidate [Amsterdam]) teaches at the. Institute of Federalism and Legal Stud- ies, Ethiopian Civil Service College, and ..... relation to Minority Protections, State. Constitutional Law, and Federalism” in. Tarr, Williams, and Marko, supra note. 10, at pp. 25-41. Note also the fact that in.

  5. configuration of ArII

    Indian Academy of Sciences (India)

    There is a constant interest in the study of rare gases in connection with plasma physics, high temperature arcs and laser. The knowledge of lifetime and transition probabilities of singly ionized argon (ArII) is of great value in atomic structure stud- ies and also with regard to the above-mentioned applications. Most of the ...

  6. J.B. van Wyk,* G.J. Erasmus and K.V. Konstantinov

    African Journals Online (AJOL)

    Data of the Elsenburg Dormer sheep stud which was kept closed since its inception, were collected over a period of. 50 years (1941-1990) ... investigatethe effect of inbreedingon some early growth and reproductiontraits. In total, 9551 pedigree ... tion, as well as in accelerated breeding techniques, which could considerably ...

  7. SOME ASPECTS OF CURRENT EFFORTS TO IMPROVE DAIRY ...

    African Journals Online (AJOL)

    the industry. 4. Within a closed population i.e. in the absence of any significant bull or semen importation, the rate of genetic improvement is related to the effect- ive size of the breeding population. The percentage of stud cows in milk recording and. A.I. is, therefore, of cardinal importance in any effort to effect maximum rates ...

  8. The epidemiology of golf-related injuries in Australian amateur golfers

    African Journals Online (AJOL)

    club shaft used, type of shoes used and other factors stud- ied were not statistically significant. Conclusion. The most injured sites identified in this study were the lower back, elbow and shoulder respectively. Risk of injury during golfing varied according to age group, warm-up status, conditioning habits, whether the player.

  9. 1104-IJBCS-Article-Inza Kone

    African Journals Online (AJOL)

    DR GATSING

    Troop size and structure in free-ranging Formosan. Macaques (Macaca cyclopis) at longevity, Taiwan. Zool. Stud., 40(1):49-. 60. Hunkeler C, Bourlière F, Bertrand M. 1972. Le comportement social de la mone de. Lowe (Cercopithecus campbelli lowei). Folia Primatol., 17: 218-236. Janmaat KRL, Byrne RW, Zuberbühler K.

  10. preparation of tetramethylguanidine-functionalized mesoporous ...

    African Journals Online (AJOL)

    Mgina

    type silicas as a new class of solid base catalysts for condensation reactions. Stud. Surf. Sci. Catal. 108: 75–82. Likhar PR, Roy S, Roy M, Subhas MS and. Lakshmi KM 2008 Silica supported tetramethylguanidine: An efficient solid base for Aldol ...

  11. Determination of storage conditions for new biscuits using their sorption isotherms

    OpenAIRE

    G. Diukareva; A. Pak; A. Gasanova

    2015-01-01

    Introduction For the formation of biscuits quality natural carrier of iodine and sweetener from stevia leaves were used. Desorption of moisture is the dominant process, which will determine the guaranteed shelf life of biscuits. The conditions for the developed biscuits storage was determined by investigating of sorption isotherms and kinetics of reaching the equilibrium moisture content. Materials and Methods. The objects of stud...

  12. Dechlorination Kinetics Of Monochlorobiphenyls By Fe/Pd: Effects Of Solvent, Temperature, And PCB Concentration

    Science.gov (United States)

    Well-known, yet undefined, changes in the conditions and activity of palladized zerovalent iron (Fe/Pd) over an extended period of time hindered a careful study of dechlorination kinetics in long-term experiments. A short-term experimental method was, therefore, developed to stud...

  13. Original Research Original Research

    African Journals Online (AJOL)

    User

    A comprehensive survey pertaining to vendors an economic links between urban informal and formal se studied so far. Hence, the main purpose of this stud vendor activities and examine the types and inten linkages these vendor activities do have with formal stimulate growth in the country in general and in stu end, it had ...

  14. Research

    African Journals Online (AJOL)

    raoul

    2011-11-14

    Nov 14, 2011 ... Data were collected between February and March 2010 using a questionnaire, designed by the researcher. It comprised two sections; the ..... Bazant ES, Koenig MA, Fotso J-C, Mills S. Women's Use of Private and Government Health Facilities for Childbirth in Nairobi's Informal. Settlements. Stud Fam Plann ...

  15. a mass-scale method for assaying pathogen resistance in Drosophila

    Indian Academy of Sciences (India)

    studied model systems for life-history evolution (Prasad and. Joshi 2003), D. melanogaster is an attractive choice for stud- ies on life-history related tradeoffs involving the immune sys- tem (Sharmila Bharathi et al. 2004). A potential limitation in using D. melanogaster for rigorous evolutionary experi- mentation on immune ...

  16. Science and music: A harmonious jugalbandi!

    Indian Academy of Sciences (India)

    Lawrence

    Victoria College, Palakkad, for higher stud- ies. I would not study every day, but made sure that I read the chapters before they were covered in the class. In preparation for the twelth standard exam, I again prepared a time table for revi- sion. Unfortunately, I was stricken down with chicken-pox and had to stay at home for two ...

  17. All-wheel drive and winter-weather safety.

    Science.gov (United States)

    2013-03-01

    It is frequently stated that people living in northern states, the so called Snowbelt of the United : States, benefit with respect to safety from driving all-wheel or four-wheel drive vehicles as : opposed to front or rear-wheel drive only. This stud...

  18. Probing electronic interactions using electron tunneling

    Indian Academy of Sciences (India)

    pratap

    Sample preparation. Chamber. Sample manipulators. Vibration Isolation. Table. Cryostat. Load lock. STM Head. Magnet. Sample holder. Tip. Tip holder. Piezo electric tube. Coarse positioner. Macor. Cu housing for sample holder. PCB. Cu shielding can. Steel studs. Our Toy: The TIFR milli-Kelvin STM. Lowest temperature:.

  19. Lego Bricks and the Octet Rule: Molecular Models for Biochemical Pathways with Plastic, Interlocking Toy Bricks

    Science.gov (United States)

    Lin, Henry J.; Lehoang, Jennifer; Kwan, Isabel; Baghaee, Anita; Prasad, Priya; Ha-Chen, Stephanie J.; Moss, Tanesha; Woods, Jeremy D.

    2018-01-01

    The 8 studs on a 2 × 4 Lego brick conveniently represent the outer shell of electrons for carbon, nitrogen, and oxygen atoms. We used Lego bricks to model these atoms, which are then joined together to form molecules by following the Lewis octet rule. A variety of small biological molecules can be modeled in this way, such as most amino acids,…

  20. The Relationship between Intrinsic Motivation and Academic Achievement for First Generation Latino College Students

    Science.gov (United States)

    Trevino, Naomi Noel; DeFreitas, Stacie Craft

    2014-01-01

    Hispanic students are pursuing higher education more than in previous years and they often represent their family as the first member to attend college (Strage in "Coll Stud J" 33:198-205, 1999). Past educational research has studied the influence of intrinsic motivation on academic achievement in various ethnically diverse elementary,…

  1. The influence of age-group structure on genetic gain and ...

    African Journals Online (AJOL)

    Demographic data were collected on one privately owned stud herd each of the Bonsmara, Brahman and Drakensberger beef breeds, farmed extensively in different natural environments in the Republic of South Africa, to study the influence of herd age-group structure on the rate of genetic gain and production. The number ...

  2. iese mor- struktuur posisies soortge

    African Journals Online (AJOL)

    2006-01-27

    Jan 27, 2006 ... oil painting to television and the Internet”. (Mizroeff, 2000: 3). As a result, approaches to enhance the understanding of the vari- ous forms of visual production became a concern across several fields beyond the art historical. Methodologies from cultural stud- ies, sociology, anthropology, and feminist.

  3. Parameterization of the prosthetic redox centers of the bacterial cytochrome bc(1) complex for atomistic molecular dynamics simulations

    DEFF Research Database (Denmark)

    Kaszuba, K.; Postila, P. A.; Cramariuc, O.

    2013-01-01

    Cytochrome (cyt) bc(1) is a multi-subunit membrane protein complex that is a vital component of the respiratory and photosynthetic electron transfer chains both in bacteria and eukaryotes. Although the complex's dimer structure has been solved using X-ray crystallography, it has not yet been stud...

  4. Installing a Test Tap on a Metal Battery Case

    Science.gov (United States)

    Mayes, Daniel R.; Rybicki, Daniel J.

    2009-01-01

    A mechanical fitting and relatively simple and safe method of installing it on the metal case of a battery have been devised to provide access to the interior of the battery to perform inspection and/or to measure such internal conditions as temperature and pressure. A metal boss or stud having an exterior thread is attached to the case by capacitor-discharge stud welding (CDSW), which takes only 3 to 6 milliseconds and in which the metallurgical bond (weld) and the heat-affected zone are limited to a depth of a few thousandths of an inch (a few hundredths of a millimeter). These characteristics of CDSW prevent distortion of the case and localized internal heating that could damage the chemical components inside of the battery. An access hole is then drilled through the stud and case, into the interior of the battery. A mechanical fitting having a matching thread is installed on the stud and the interior end of the fitting is sealed with a pressure-sealing washer/gasket. The exterior end of the fitting is configured for attachment of whatever instrumentation is required for the selected inspection or measurement.

  5. Integrated modeling of feeding and breeding strategies to reduce greenhouse gas emissions along the production chain of milk

    NARCIS (Netherlands)

    Middelaar, van C.E.; Berentsen, P.B.M.; Dijkstra, J.; Boer, de I.J.M.

    2014-01-01

    Life cycle assessments require many input parameters and many of these parameters are uncertain; therefore, a sensitivity analysis is an essential part of the final interpretation. The aim of this study is to compare seven sensitivity methods applied to three types of case stud-ies. Two

  6. Cochlear implantation in postlingually hearing-impaired adults : Choosing the most appropriate ear

    NARCIS (Netherlands)

    van den Broek, Emke; Dunnebier, Erwin Alexander

    Choice of the most appropriate car for CI in postlingually hearing-impaired adults is becoming more relevant as more patients are considered eligible for intervention. The aim of this stud), is to review factors that influence this choice and to formulate a flowchart. An extensive Medline search was

  7. Table 3

    African Journals Online (AJOL)

    uovs

    213. Revised models and genetic parameter estimates for production and reproduction traits in the Elsenburg Dormer sheep stud. J.B. van Wyk. #1. , M.D. Fair. 1. & S.W.P. Cloete. 1,2. 1. Department ... Keywords: Dormer sheep, genetic parameters, temporary and permanent environmental effects, early growth, survival and ...

  8. Playing the game or played by the game

    DEFF Research Database (Denmark)

    Järvinen, Margaretha; Ravn, Signe

    2018-01-01

    This article analyses the relationship between cannabis use and educational trajectories among 42 young drug users, recruited at addiction treatment centres in Denmark. Quantitative research shows regular cannabis use to be associated with poor school performance and drop-out. However, these stud......, we show how regular cannabis plays into the ‘illusio’ of different fields, challenging the interviewees’ playing of educational games....

  9. Dynamic soil properties of some deep trenches in Mashhad city, NE ...

    Indian Academy of Sciences (India)

    tremor analyses were used. In microtremor stud- ies, floor spectral ratio (FSR) method was used to define dynamical properties of the trench wall. In. 1D equivalent linear, dynamical properties of the trench wall were estimated by determining the top and bottom layers of the trenches as outcrops. The results are presented in ...

  10. Greener and Expeditious Synthesis of Bioactive Heterocycles using Microwave Irradiation

    Science.gov (United States)

    The utilization of green chemistry techniques is dramatically reducing chemical waste and reaction times as has recently been proven in several organic syntheses and chemical transformations. To illustrate these advantages in the synthesis of bio-active heterocycles, we have stud...

  11. Onset of itinerant ferromagnetism associated with semiconductor ...

    Indian Academy of Sciences (India)

    xCoSn solid solution compounds with half Heusler cubic MgAgAs-type structure have been stud- ied. This work shows the onset of ferromagnetism associated with a semiconductor to metal transition. The transition occurs directly from ferromagnetic ...

  12. Developing a method for quantification of Ascaris eggs on hands

    DEFF Research Database (Denmark)

    Jeandron, Aurelie; Ensink, Jeroen J. H.; Thamsborg, Stig Milan

    In transmission of soil transmitted helminths, especially with Ascaris and Trichuris infections, the importance of hands is unclear and very limited literature exists. This is partly because of the absence of a reliable method to quantify the number of helminth eggs on hands. The aim of this stud...

  13. Using peracetic acid to control fungus on catfish eggs

    Science.gov (United States)

    A promising new treatment for parasites and egg fungi is peracetic acid (PAA; also called peroxyacetic acid). It is registered with the U.S. Environmental Protection Agency (EPA) as an oxidizing agent used as an antimicrobial compound approved for indoor use on hard, non-porous surfaces. This stud...

  14. An Analysis of Insulated Concrete Forms for use in Sustainable Military Construction

    Science.gov (United States)

    2014-03-27

    insulation board, steel framing with rolled insulation batting between the studs, and the continuous layer of interior drywall . The majority of the...polystyrene from the other side of the ICF blocks, and a continuous layer of interior drywall . 24 Figure 9. Elements of an ICF Wall System

  15. Long-term changes in the within-season temporal profile of ...

    Indian Academy of Sciences (India)

    made to understand the impact of greenhouse and aerosol-induced climate change on the spatio-temporal pattern of monsoon rains over the country (e.g.,. Ramanathan et al. 2001). Complicating factors like increasing urbanization also play a significant role (Kishtawal et al. 2010). Most of the stud- ies (e.g., Krishna Kumar ...

  16. Author Details

    African Journals Online (AJOL)

    The effect of Information Technologies on Banking: a case study of three commercial banks in Delta State Abstract · Vol 8, No 1 (2011) - Articles Information Communication Technology Usage among Rural Women: A Case Stud y of Ndokwa Area of Delta State Abstract · Vol 9, No 1 (2012) - Articles The Development of ...

  17. Identification and diagnostic evaluation of possible dementia in general practice. A prospective study

    DEFF Research Database (Denmark)

    Waldorff, Frans Boch; Rishøj, Susanne; Waldemar, Gunhild

    2005-01-01

    OBJECTIVE: To investigate the rate of diagnostic evaluation of dementia for patients in whom a suspicion of dementia was raised, and to investigate reasons why a diagnostic evaluation was not always being performed. DESIGN: A prospective study among elderly patients aged 65+, and a follow-up stud...

  18. Polyester polymer concrete overlay.

    Science.gov (United States)

    2013-01-01

    Polyester polymer concrete (PPC) was used in a trial application on a section of pavement that suffers from extensive studded tire wear. The purpose of the trial section is to determine if PPC is a possible repair strategy for this type of pavement d...

  19. Incidence, species and antimicrobial resistance of naturally occurring Campylobacter isolates from quail carcasses sampled in a commercial processing facility

    Science.gov (United States)

    Most of the published information about the presence of Campylobacter on processed poultry is from studies with chickens and turkeys; therefore there is a paucity of published material about the presence of Campylobacter on commercially processed quail (Coturnix coturnix). The objective of this stud...

  20. Mexican Immigrant Transnational Social Capital and Class Transformation: Examining the Role of Peer Mediation in Insurgent Science

    Science.gov (United States)

    Bruna, Katherine Richardson

    2010-01-01

    In this article, I return to the interactions of Augusto and his teacher in an "English Learner Science" classroom in a demographically-transitioning US Midwest community (Richardson Bruna and Vann in Cult Stud Sci Educ 2:19-59, "2007") and further engage a class-first perspective to achieve two main conceptual objectives.…

  1. Data assimilation with Chua's circuit

    Indian Academy of Sciences (India)

    a certain set of parameters. It has been extensively stud- ied in many different contexts, including experimental and numerical studies of synchronization of coupled. Chua circuits [20–25]. The schematic circuit is shown in figure 1. It consists of an inductor L with an internal resistance r, two capacitors C1 and C2, a nonlinear ...

  2. Influence of pH on the Transport of Silver Nanoparticles in Saturated Porous Media: Laboratory Experiments and Modeling

    Science.gov (United States)

    Given the ubiquity of silver nanoparticles (AgNPs), the largest and fastest growing category of nanomaterials, and their potential for toxic effects to both humans and the environment, it is important to understand their environmental fate and transport. The purpose of this stud...

  3. Book Review Peter Roach's English phonetics and phonology: a ...

    African Journals Online (AJOL)

    Cambridge University Press Cambridge (2000) 296 (xii + 283) pages. R155.00. Practical exercises available on CD ROM or cassette. Also available in Cambridge Low Price Edition @ R99.95 (including two audio cassettes) (S/ern Af Linguistics & Applied Language Stud: 2002 20(4): 349-350) ...

  4. Evidence for paracrine/autocrine regulation of GLP-1-producing cells

    DEFF Research Database (Denmark)

    Kappe, Camilla; Zhang, Qimin; Holst, Jens Juul

    2013-01-01

    Glucagon-like peptide-1 (GLP-1), secreted from gut L cells upon nutrient intake, forms the basis for novel drugs against type 2 diabetes (T2D). Secretion of GLP-1 has been suggested to be impaired in T2D and in conditions associated with hyperlipidemia and insulin resistance. Further, recent stud...

  5. Effects of buffer strips and grazing management on soil loss from pastures

    Science.gov (United States)

    Intensive grazing pressure can cause soil erosion from pastures causing increased sediment loading to aquatic systems. The objectives of this work were to determine the long-term effects of grazing management and buffer strips on soil erosion from pastures fertilized with broiler litter. Field stud...

  6. Prevalence of coliforms, Salmonella, Listeria, and Campylobacter associated with eggs and the environment of conventional cage and free range egg production

    Science.gov (United States)

    There is a desired by US consumers for eggs produced by hens in alternative production systems. As the retail shell egg market offers these products to accommodate consumer demands, additional information is needed to ensure processing methodologies result in safe eggs from all egg sources. A stud...

  7. South African Journal of Animal Science - Vol 33, No 4 (2003)

    African Journals Online (AJOL)

    Revised models and genetic parameter estimates for production and reproduction traits in the Elsenburg Dormer sheep stud · EMAIL FREE FULL TEXT EMAIL FREE ... Production of five Merino type lines in a terminal crossbreeding system with Dormer or Suffolk sires · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT

  8. EXPERT SYSTEMS SHOW PROMISE FOR CUSTOMER INQUIRIES

    Science.gov (United States)

    This article describes results of an agreement between the North Penn Water Authority in Lansdale, Pa., and the US Environmental Protection Agency, Drinking Water Research Division, Cincinnati, Ohio, to study use of expert systems technology in a water utility. The threeyear stud...

  9. Bovine leukemia virus seroprevalence among cattle presented for slaughter in the United States

    Science.gov (United States)

    Infection with bovine leukemia virus (BLV) results in economic loss due reduced productivity, especially the reduction of milk production and early culling. In the USA.,USA, previous studies in 1996, 1999 and 2007 showed BLV infections widespread, especially in the dairy herds. The goal of this stud...

  10. Does soccer cleat design influence the rotational interaction with the playing surface?

    Science.gov (United States)

    Galbusera, Fabio; Tornese, Davide Zai; Anasetti, Federica; Bersini, Simone; Volpi, Piero; La Barbera, Luigi; Villa, Tomaso

    2013-09-01

    Non-contact injuries in soccer players may be related to the interplay between cleat type and playing surface, and bladed shoes were often blamed for non-contact injuries with no research support. The aim of this study was to compare the rotational resistance (stiffness and peak sustainable torque) among three types of soccer cleats (metal studs, molded rubber studs, and bladed) in a controlled laboratory environment. The shoes were tested on both natural and artificial turfs under a compressive preload of 1000 N and with internal and external rotations. The three shoe models showed comparable performances with a good repeatability for each individual test on both playing surfaces. A less stiff behavior was observed for the natural turf. A tendency toward highest peak torque was observed in the studded model on natural surface. The bladed cleats provided peak torque and rotational stiffness comparable to the other models. Studded and bladed cleats did not significantly differ in their interaction with the playing surface. Therefore, soccer shoes with bladed cleats should not be banned in the context of presumed higher risk for non-contact injuries.

  11. Bibliography of Ticks and Tickborne Diseases from Homer (About 800 B.C.) to 31 December 1981. Volume 7.

    Science.gov (United States)

    1982-05-01

    Fr., 53(4):475-480. babeslosis bavina causada par Babesia bovis en el Centro Experimental Pecuaria de Hueytamalco, Puebla ,EVRTED.&EMLRJ.W Arch. Otolar...scientific rebults of the Oman flora and fauna survey 1977 (Dhofar). J. Oman Stud.,* (Spec. ..... (1981B) Adaptation among Rep. 2),.0 pp. r

  12. Qualitative and Quantitative Coronary Angiography in patients with Acute Coronary Syndrome (ACS

    Directory of Open Access Journals (Sweden)

    Ahmed H.H. El-Adawey

    2012-07-01

    Conclusion: The qualitative angiographic assessment represents an essential tool in the evaluation and risk stratification of patients with ACS, through the demonstration of the presence of thrombus and lumen irregularity that correlated more with ACS than the other studded criteria. In addition, QCA although added accurate assessment of the degree of luminal narrowing, thus helping in assessment of the severity of the disease.

  13. Eesti miljardid rippusid juuksekarva otsas / Sulev Vedler

    Index Scriptorium Estoniae

    Vedler, Sulev, 1970-

    2008-01-01

    Riigikassa investeeris üle 13% Eesti riigi reservidest Debfa panka, mis sattus ülemaailmse rahanduskriisi tõttu raskustesse. Pank kuulub sakslaste Hypo Real Estate Groupile, Saksa konsortsium andis pangale 50 mld. euro suuruse krediidiliini ja valitsuse garantii. Diagramm: Kuhu on paigutatud Eesti riigi reservid? Lisa: Kuidas Eesti riigi kõige olulisemad säästud ohtu sattusid

  14. Optimizing conditions of a cell-free toxic filtrate stem cutting assay to evaluate soybean genotype responses to Fusarium species that cause sudden death syndrome

    Science.gov (United States)

    Cell-free toxic culture filtrates from Fusarium virguliforme, the causal fungus of soybean sudden death syndrome (SDS), cause foliar symptoms on soybean stem-cuttings similar to those obtained from root inoculations in whole plants and those observed in production fields. The objectives of this stud...

  15. Relationship between performance measurements and sale price of ...

    African Journals Online (AJOL)

    The sale prices of 1 609 Dorper rams sold between 1990 and 1999 were compared with their measured performances. An analysis of variance was carried out in order to determine which variables influenced sale price. The most importance factors were classification (stud vs. commercial), auction weight and coat type (hair ...

  16. Fulltext PDF

    Indian Academy of Sciences (India)

    ART

    Penrose and Stephen Hawking to tackle the issue of singularity of the Big Bang. It is a symptom of the malaise of Indian science that Raychaudhuri was recognized late in life. It was because he did not covet the life of an award-studded scientist and chose to teach in a college in Kolkata. He taught at the Presidency College ...

  17. Prognostic factors for weight loss over 1-year period in patients recently diagnosed with mild Alzheimer Disease

    DEFF Research Database (Denmark)

    Hansen, M.L.; Waldorff, F.B.; Waldemar, G.

    2011-01-01

    StudY. The patients were home-living patients with a clinical diagnosis, within the past 12 months, of probable AD or mixed AD; age =50 years; mini-mental state examination score =20; informed consent; and data available at 1-year follow-up. In total, 268 patients were included. We used a cut off of 4...

  18. Iron bioavailability studies of the first generation of iron-biofortified beans released in Rwanda

    Science.gov (United States)

    This paper represents a series of in vitro Fe bioavailability experiments, Fe content analysis and polyphenolic profile of the first generation of Fe biofortified beans (Phaseolus vulgaris) selected for human trials in Rwanda and released to farmers of that region. The objective of the present stud...

  19. Chemistry at the Nanoscale

    Indian Academy of Sciences (India)

    Traditionally the kinetics of a chemical reaction has been stud- ied as a set of coupled ordinary differential equations. The law of mass action, a tried and tested principle for reactions involving macroscopic quantities of reactants, gives rise to de- terministic equations in which the variables are species con- centrations.

  20. Shear heating by translational brittle reverse faulting along a single ...

    Indian Academy of Sciences (India)

    structures of fault zones (Lamb 2006). Such stud- ies are also important to understand the genesis of pseudotachylites (Vernon and Clarke 2008) that may be present along faults (Rice and Cocco 2005), fault kinematics (e.g., Sibson 2002), thermal soft- ening during deformation (Blanpied et al. 1998), etc. (also see Segall ...

  1. Quantum yield and translational energy of hydrogen atoms

    Indian Academy of Sciences (India)

    TECS

    In order to assess the environmental impact of the accumulation of the HCFCs in detail, different stud- ies about the molecule in the atmosphere need to be performed. Besides atmospheric concentration mea- surements and 3D modelling calculations, laboratory photodissociation dynamics studies of HCFCs and in.

  2. Response to selection on BLUP of breeding values in the ...

    African Journals Online (AJOL)

    also, slightly different broeding objectives. Very little is known about the actual advantases of selection on BLUP of breeding values to the Merino stud breeder who must neces- sarily conform to other prerequisites, notably, visual accep- tance, dictated by the market-place. Material and Methods. Animals. From 1966 to 1912, ...

  3. South African Journal of Animal Science - Vol 23, No 3 (1993)

    African Journals Online (AJOL)

    Non-genetic factors influencing early growth traits in the Elsenburg Dormer sheep stud · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. J.B. van Wyk, G.J. Erasmus, K.V. Konstantinov, 67-71 ...

  4. The pH-unrelated influence of salt, temperature and manganese on aroma formation by Staphylococcus xylosus and Staphylococcus carnosus in a fermented meat model system

    DEFF Research Database (Denmark)

    Tjener, Karsten; Stahnke, Louise Heller; Andersen, L.

    2004-01-01

    The influence of manganese (0.01-0.1-1.0 mug/g), temperature (15-24 degreesC) and salt (3-4% w/w) on volatile formation in model minces inoculated with Pediococcus pentosaceus and either Staphylococcus xylosus or Staphylococcus carnosus was studied in a full factorial experiment. In order to stud...

  5. Tool for Guiding An Auger

    Science.gov (United States)

    Wesselski, C. J.

    1983-01-01

    Auger and Ram have same pitch, which minimizes damage to workpiece and load carried by auger. Auger firmly fastened onto ram shaft by screw and kept from rotating on shaft by slot machined into end of stem and male driving lug that engages slot. Used to install threaded studs in plastic or rubber where impractical to mold them in.

  6. Case Reports: Peritoneal hydatidosis in a young girl | Wani | Ghana ...

    African Journals Online (AJOL)

    We report a case of peritoneal hydatidosis that occurred post laparotomy. Patient was diagnosed nine months after she had laparotomy for suspected acute appendicitis. The whole peritoneal cavity was studded with cysts. In view of diffuse involvement, patient was managed conservatively and showed response to medical ...

  7. Colloidal interactions in two-dimensional nematic emulsions

    Indian Academy of Sciences (India)

    These were reported to lead to a variety of novel self-organized colloidal structures, such as linear chains [5,6], periodic lattices [7], anisotropic clusters [3], and cellular structures [8] that are stabilized, in general, by topological defects. More recently, two-dimensional (2D) inverted nematic emulsions were also stud- ied and ...

  8. Concentrations of plasma copper and zinc and blood selenium in ...

    African Journals Online (AJOL)

    prior to lambing, when they were transferred to kikuyu pastures. From six weeks prior to lambing, all the ewes received 0,5 kg supplementary feeding daily. This was increased by 0,1 kg per week up to lambing. The diet consisted of 55% oaten hay, 35,6% barley, 4% fish meal, 3% Rumevite stud concentrate,. 1% bentonite,.

  9. Sukomol Kumar Chanda

    Indian Academy of Sciences (India)

    after a long pause, when he spearheaded the stud- ies on deep water dolomite in the Neoprotero- zoic limestone of the PG Valley (Mukhopadhyay et al 1999) and made a significant contribution on maturation and fabric development in the Pen- ganga chert, a paper that was published posthu- mously. While working on the ...

  10. Navigating "Thorny" Issues

    Science.gov (United States)

    Hutchinson, Kashema; Gilbert, Aderinsola; Malyukova, Anna

    2016-01-01

    In their article "Mindfulness and discussing 'thorny' issues in the classroom" Konstantinos Alexakos et al. ("Cult Stud Sci Educ," 2016. doi: 10.1007/s11422-015-9718-0) describe "thorny" issues as "difficult topics to discuss because they are more personal to some perhaps even cause pain and violence." As…

  11. Gratitude, R"essentiment," and Citizenship Education

    Science.gov (United States)

    Jonas, Mark E.

    2012-01-01

    Patricia White ("Stud Philos Educ" 18:43-52, 1999) argues that the virtue gratitude is essential to a flourishing democracy because it helps foster universal and reciprocal amity between citizens. Citizens who participate in this reciprocal relationship ought to be encouraged to recognize that "much that people do does in fact help to make…

  12. Provenance, tectonics and palaeoclimate of Proterozoic Chandarpur ...

    Indian Academy of Sciences (India)

    climatic condition. The provenance analysis revealed that the Chandarpur clastics were derived from granites and granite–gneisses of a continental block tectonic provenance. Petrographic stud- ies further indicate that high grade metamorphic rocks did not make any perceptible contribution to the Chandarpur system.

  13. original articles a review of population-based studies on ...

    African Journals Online (AJOL)

    David Ofori-Adjei

    used in four studies. The blood pressure was measured on a single visit in the majority of studies, but blood pressure had been recorded at least twice during the visit in almost .... The prevalence of hypertension in the recent rural stud- ies was lowest in .... and affordable food choices, and by lack of safe, attrac- tive places to ...

  14. Unusual giant prostatic urethral calculus | Bello | Journal of Surgical ...

    African Journals Online (AJOL)

    Giant vesico-prostatic urethral calculus is uncommon. Urethral stones rarely form primarily in the urethra, and they are usually associated with urethral strictures, posterior urethral valve or diverticula. We report a case of a 32-year-old man with giant vesico-prostatic (collar-stud) urethral stone presenting with sepsis and ...

  15. Harmful cleats of football boots: a biomechanical evaluation.

    Science.gov (United States)

    Bentley, J A; Ramanathan, A K; Arnold, G P; Wang, W; Abboud, R J

    2011-09-01

    Football players wear boots of varying cleat designs with some preferring the bladed cleats while others opting for the conventional studded cleats. The current study compares biomechanically the boots with differing cleat designs and their effect on feet, if any. Twenty-nine healthy male volunteers were recruited from amateur football teams. They were asked to perform three trials each of two activities: a straight run and a run cutting at a 60° angle wearing bladed and studded Adidas®-F series boots on artificial turf. Plantar pressure values were recorded using the Pedar®-X in-shoe pressure measuring device. Peak pressure and pressure-time integral were analysed over 11 clinically relevant areas under the foot. While the in-shoe pressure and pressure-time integral were higher under the medial half of the foot with studded boots, they were higher under the lateral half of the foot with the bladed design. The studded boots can be considered safer as the pressure distribution across the foot and the pattern of centre of pressure progression mimicked the normal motif, whereas the bladed boots could potentially be deemed relatively more harmful due to the unnatural increased loading under the lateral half of the foot, predisposing the foot to injuries. Copyright © 2010 European Foot and Ankle Society. Published by Elsevier Ltd. All rights reserved.

  16. Environmental Exposures, Genetic Polymorphisms and p53 Mutational Spectra in a Case-Control Study of Breast Cancer.

    Science.gov (United States)

    1997-01-01

    polycyclic aromatic hydro- 57% of the postmenopausal women stud- Cancer Inst. 1989;81:3-135. carbon biotransformation , CYPIA1 and ied were slow acetylators...596. 1984:359-368. International Agency for Research on Cancer; 1972: 72. Baron JA. Smoking and estrogen -related dis-41. Ilett KF, David BM, DetchonP

  17. Influence of site and soil properties on the DRIFT spectra of northern cold-region soils

    Science.gov (United States)

    We investigated the influence of site characteristics and soil properties on the chemical composition of organic matter in soils collected from a latitudinal transect across Alaska through analysis of diffuse reflectance infrared Fourier transform mid infrared (MidIR) spectra of bulk soils. The stud...

  18. Gravity anomalies, crustal structure and rift tectonics at the Konkan ...

    Indian Academy of Sciences (India)

    trolled by the mode of extension and thinning of continental lithosphere during its formation. Stud- ies on the evolution of passive margins therefore facilitate to understand the genetic link between tectonics, geomorphology and sedimentation. The. Western Continental Margin of India (WCMI) has evolved through rifting and ...

  19. Development of a 96-well plate iodine binding assay for amylose content determination

    Science.gov (United States)

    Cereal starch amylose/amylopectin (AM/AP) ratios are critical in functional properties for food and industrial applications. Conventional methods for the determination of AM/AP of cereal starches are very time consuming and labor intensive making it very difficult to screen large sample sets. Stud...

  20. Effects of lighting and time of day on the locomotion of zebrafish larvae.

    Science.gov (United States)

    The increasing use of zebrafish in developmental research highlights the need for detailed behavioral investigations in this species. Behavior represents the unique interface between the intrinsic and extrinsic forces that determine an organism’s health and survival. We have stud...

  1. The World of the Worm-2002 Nobel Prize in Physiology or Medicine

    Indian Academy of Sciences (India)

    development could be gained from these stud- ies such as the intrinsic asymmetry of the. egg and the ability of some cells of the embryo to. 'induce' the formation of specific tissues even when transplanted to a new location. More recently, the power of genetics to understand development was brilliantly demonstrated.

  2. Sennar Jacks (Equus asinus)

    African Journals Online (AJOL)

    This study was carried out with an objective of evaluating the breeding soundness and sexual behavior of Sennar jackasses. ... score of 7 for the breeding and 4.8 for the working jacks. The mean (iSE) of height at wither,the ..... Equine Reproductive Physiology, Breeding and Stud Manage- ment, 2ndEdn. Farming Press ...

  3. Evaluation of benthic macroinvertebrate assemblage for disturbance ...

    Indian Academy of Sciences (India)

    River pollution has tremendously increased in the major cities of South Asia, where the rivers have become .... China (Zhou et al. 2007; Zhang et al. 2009), India. (Raj and Azeez 2009; Bhardwaj et al. 2010) and. Malaysia (Fulazzaky et al. 2010). However, as stud- ies have ...... the coastal area of Kimje, South Korea; Hydrol.

  4. Analysis of Li-related defects in ZnO thin films influenced by ...

    Indian Academy of Sciences (India)

    et al 2008) and electrical measurements (Look and Claflin. 2004; Mohamed et al 2005). Here, we report the effects of annealing ambient on Li-related defects in ZnO films. For- mation mechanism of Li-related defects in ZnO was stud- ied by calculating formation energies of Li-related defects structure. 2. Experimental.

  5. Direct and maternal variance component estimates for clean fleece ...

    African Journals Online (AJOL)

    Direct and maternal variance component estimates for clean fleece weight, body weight and mean frbre diameter in the Grootfontein Merino stud. J.J. Olivier. Grootfontein Agricultural Development Institute, Middelburg, Cape, 5900 Republic of South Africa. G.J. Erasmus, J.B. van Wyk and K.V. Konstantinov. Department of ...

  6. Researching language teaching: Understanding practice through ...

    African Journals Online (AJOL)

    However, to engage critically with practice, SLA research must be situated in its institutional, social and cultural settings. We argue that situated research into classroom interaction provides second language teachers with opportunities to theorize and improve practice. (S/ern Af Linguistics & Applied Language Stud: 2001 ...

  7. State or nature? Endogenous formal versus informal sanctions in the voluntary provision of public goods

    DEFF Research Database (Denmark)

    Kamei, Kenju; Putterman, Louis; Tyran, Jean-Robert Karl

    2015-01-01

    We investigate the endogenous formation of sanctioning institutions supposed to improve efficiency in the voluntary provision of public goods. Our paper parallels Markussen et al. (Rev Econ Stud 81:301–324, 2014) in that our experimental subjects vote over formal versus informal sanctions...

  8. Effects of erythropoietin on posttraumatic place learning in fimbria-fornix transected rats after a 30-day postoperative pause

    DEFF Research Database (Denmark)

    Malá, Hana; Rodriguez Castro, Maria; Dall Jørgensen, Katrine

    2007-01-01

    Human recombinant erythropoietin (EPO) has been shown to exert neuroprotective effects following both vascular and mechanical brain injury. Previously, we showed that behavioral symptoms associated with mechanical lesions of the hippocampus are nearly abolished due to EPO treatment. In these stud...

  9. Genetic analysis of body weight in South African Angora kids and ...

    African Journals Online (AJOL)

    The data used for this study consisted of 27 485 kid records, the progeny of 599 sires and 10 077 dams, and were collected on the 2000- to 2009-born kids of 11 Angora goat studs. Variance and covariance components and ratios pertaining to direct additive genetic variation, maternal additive genetic variation, maternal ...

  10. Body weight and growth rate of South African Angora goat kids ...

    African Journals Online (AJOL)

    The data used for this study were collected on 16 644 kids born between 2000 and 2004 in 12 different Angora goat studs representing different management systems. Body weight and growth rate of kids from birth to 16 months of age, as well the 18- and 21-month body weights and first kidding performance of ewe kids ...

  11. Field monitoring of rail squats using 3D ultrasonic mapping technique

    International Nuclear Information System (INIS)

    Kaewunruen, S.; Ishida, M.

    2014-01-01

    Rail squats and studs are typically classified as the propagation of any cracks .that have grown longitudinally through the subsurface. Some of the cracks could propagate to the bottom of rails transversely, which have branched from the initial longitudinal cracks with a depression of rail surface. The rail defects are commonly referred to as 'squats' when they were initiated from a damage layer caused by rolling contact fatigue, and as 'studs' when they were associated with a white etching layer caused by the transformation from pearlitic steel due to friction heat generated by wheel sliding or excessive traction. Such above-mentioned rail defects have been often observed in railway tracks catered for either light passenger or heavy freight traffics and for low, medium or high speed trains all over the world for over 60 years except some places such as sharp curves where large wear takes place under severe friction between the wheel flange and rail gauge face. It becomes a much-more significant issue when the crack grows and sometimes flakes off the rail (by itself or by insufficient rail grinding), resulting in a rail surface irregularity. Such rail surface defects induce wheel/rail impact and large amplitude vibration of track structure and poor ride quality. In Australia, Europe, and Japan, rail squats/studs have occasionally turned into broken rails. The root cause and preventive solution to this defect are still under investigation from the fracture mechanics and material sciences point of view. Some patterns of squat/stud development related to both curve and tangent track geometries have been observed and squat growth has been monitored for individual squats using ultrasonic mapping techniques. This paper highlights the field monitoring of squat/stud distribution and its growth. Squat/stud growth has been detected and scanned using the ultrasonic measurement device on a grid applied to the rail surface. The depths of crack paths at each grid node form a

  12. BREEDING AND UTILIZATION OF ARABIAN HORSE TODAY

    Directory of Open Access Journals (Sweden)

    Vlasta Mandić

    2000-06-01

    Full Text Available Arab horse raising has a hundred year old tradition. A real stud farm raising started by purchasing original reproductive material from Asia in 1895, 1897 and 1899. Apart from state stud in Goražde, Arab horse was also raised in several private stud farms, especially in Slavonia and Srijem region. By the end of the II World war Arab horse raising was restricted to only 2-3 stud farms, regardless the above mentioned oldest Arab stud farm Goražde. According to reports refering to end of 1940 in former Yugoslavia there were slightly more than 150 grown up thoroughbred Arab heads, stallions and mares in both private and public property. A number of well known stud farms was reduced, thus, Arab horse raising was limited only to stud farms Goražde, Inocens Dvor and Karađorđevo. Sires were mostly used in Bosnian-mountain horse breeding whereas in plain areas they were used for ceossing with heavy draft mares or raising of, in that time numerous represented, nonius breed. The year 1970 was characterized by Arab horses reduction, thereby raising stagnation. Horse raising was closed, so, 77 Sabich stallion, bought in Germany, started again Arab horse raising, firstly in Goražde. It was also attributed by raising establishment of agricultural economy Višnjica near Slatina. At the same time Arab horse raising increased slowly at individual raisers in Kutina, Vrbovsko, Istria, Čađavica and Zagreb vicinity. According to available data from 1999 there were approx. 132 stallions and mares due to horse raisers scattered throught Croatia. All male and female reproductive heads were mostly used as raising heads for thoroughbred raising or for crossing with other breeds which is justified by the data from the period 1930-1935. On the other hand one part of reproductive heads, especially males, were used as sports heads for gallop races and distance riding as Arab horses were used by their arrival to present areas and by Arab horse raising tradition.

  13. Field monitoring of rail squats using 3D ultrasonic mapping technique

    Energy Technology Data Exchange (ETDEWEB)

    Kaewunruen, S., E-mail: sakdirat.kaewunruen@transport.nsw.gov.au [NSW, Transport, Sydney (Australia); Ishida, M., E-mail: ishida-mk@n-koei.jp [Nippon Koei Co. Ltd., Railway Div., Railway Engineering Dept., Chiyoda-ku, Tokyo (Japan)

    2014-11-15

    Rail squats and studs are typically classified as the propagation of any cracks .that have grown longitudinally through the subsurface. Some of the cracks could propagate to the bottom of rails transversely, which have branched from the initial longitudinal cracks with a depression of rail surface. The rail defects are commonly referred to as 'squats' when they were initiated from a damage layer caused by rolling contact fatigue, and as 'studs' when they were associated with a white etching layer caused by the transformation from pearlitic steel due to friction heat generated by wheel sliding or excessive traction. Such above-mentioned rail defects have been often observed in railway tracks catered for either light passenger or heavy freight traffics and for low, medium or high speed trains all over the world for over 60 years except some places such as sharp curves where large wear takes place under severe friction between the wheel flange and rail gauge face. It becomes a much-more significant issue when the crack grows and sometimes flakes off the rail (by itself or by insufficient rail grinding), resulting in a rail surface irregularity. Such rail surface defects induce wheel/rail impact and large amplitude vibration of track structure and poor ride quality. In Australia, Europe, and Japan, rail squats/studs have occasionally turned into broken rails. The root cause and preventive solution to this defect are still under investigation from the fracture mechanics and material sciences point of view. Some patterns of squat/stud development related to both curve and tangent track geometries have been observed and squat growth has been monitored for individual squats using ultrasonic mapping techniques. This paper highlights the field monitoring of squat/stud distribution and its growth. Squat/stud growth has been detected and scanned using the ultrasonic measurement device on a grid applied to the rail surface. The depths of crack paths at each

  14. Properties and toxicological effects of particles from the interaction between tyres, road pavement and winter traction material

    Energy Technology Data Exchange (ETDEWEB)

    Gustafsson, Mats [Swedish National Road and Transport Research Institute (VTI), SE-581 95 Linkoeping (Sweden)], E-mail: mats.gustafsson@vti.se; Blomqvist, Goeran [Swedish National Road and Transport Research Institute (VTI), SE-581 95 Linkoeping (Sweden); Gudmundsson, Anders; Dahl, Andreas [Division of Ergonomics and Aerosol Technology, Department of Design Sciences, Lund University, P.O. Box 118, SE-221 00 Lund (Sweden); Swietlicki, Erik [Division of Nuclear Physics, Department of Physics, Lund University, P.O. Box 118, SE-221 00 Lund (Sweden); Bohgard, Mats [Division of Ergonomics and Aerosol Technology, Department of Design Sciences, Lund University, P.O. Box 118, SE-221 00 Lund (Sweden); Lindbom, John; Ljungman, Anders [Faculty of Health Sciences, Department of Molecular and Clinical Medicine, Division of Occupational and Environmental Medicine, SE-581 85 Linkoeping (Sweden)

    2008-04-15

    In regions where studded tyres and traction material are used during winter, e.g. the Nordic countries, northern part of USA, Canada, and Japan, mechanically generated particles from traffic are the main reason for high particle mass concentrations in busy street and road environments. In many Nordic municipalities the European environmental quality standard for inhalable particles (PM{sub 10}) is exceeded due to these particles. In this study, particles from the wear of studded and studless friction tyres on two pavements and traction sanding were generated using a road simulator. The particles were characterized using particle sizers, Particle Induced X-Ray Emission Analysis and electron microscopy. Cell studies were conducted on particles sampled from the tests with studded tyres and compared with street environment, diesel exhaust and subway PM{sub 10}, respectively. The results show that in the road simulator, where resuspension is minimized, studded tyres produce tens of times more particles than friction tyres. Chemical analysis of the sampled particles shows that the generated wear particles consist almost entirely of minerals from the pavement stone material, but also that Sulfur is enriched for the submicron particles and that Zink is enriched for friction tyres for all particles sizes. The chemical data can be used for source identification and apportionment in urban aerosol studies. A mode of ultra-fine particles was also present and is hypothesised to originate in the tyres. Further, traction material properties affect PM{sub 10} emission. The inflammatory potential of the particles from wear of pavements seems to depend on type of pavement and can be at least as potent as diesel exhaust particles. The results imply that there is a need and a good potential to reduce particle emission from pavement wear and winter time road and street operation by adjusting both studded tyre use as well as pavement and traction material properties.

  15. Properties and toxicological effects of particles from the interaction between tyres, road pavement and winter traction material

    International Nuclear Information System (INIS)

    Gustafsson, Mats; Blomqvist, Goeran; Gudmundsson, Anders; Dahl, Andreas; Swietlicki, Erik; Bohgard, Mats; Lindbom, John; Ljungman, Anders

    2008-01-01

    In regions where studded tyres and traction material are used during winter, e.g. the Nordic countries, northern part of USA, Canada, and Japan, mechanically generated particles from traffic are the main reason for high particle mass concentrations in busy street and road environments. In many Nordic municipalities the European environmental quality standard for inhalable particles (PM 10 ) is exceeded due to these particles. In this study, particles from the wear of studded and studless friction tyres on two pavements and traction sanding were generated using a road simulator. The particles were characterized using particle sizers, Particle Induced X-Ray Emission Analysis and electron microscopy. Cell studies were conducted on particles sampled from the tests with studded tyres and compared with street environment, diesel exhaust and subway PM 10 , respectively. The results show that in the road simulator, where resuspension is minimized, studded tyres produce tens of times more particles than friction tyres. Chemical analysis of the sampled particles shows that the generated wear particles consist almost entirely of minerals from the pavement stone material, but also that Sulfur is enriched for the submicron particles and that Zink is enriched for friction tyres for all particles sizes. The chemical data can be used for source identification and apportionment in urban aerosol studies. A mode of ultra-fine particles was also present and is hypothesised to originate in the tyres. Further, traction material properties affect PM 10 emission. The inflammatory potential of the particles from wear of pavements seems to depend on type of pavement and can be at least as potent as diesel exhaust particles. The results imply that there is a need and a good potential to reduce particle emission from pavement wear and winter time road and street operation by adjusting both studded tyre use as well as pavement and traction material properties

  16. Properties and toxicological effects of particles from the interaction between tyres, road pavement and winter traction material.

    Science.gov (United States)

    Gustafsson, Mats; Blomqvist, Göran; Gudmundsson, Anders; Dahl, Andreas; Swietlicki, Erik; Bohgard, Mats; Lindbom, John; Ljungman, Anders

    2008-04-15

    In regions where studded tyres and traction material are used during winter, e.g. the Nordic countries, northern part of USA, Canada, and Japan, mechanically generated particles from traffic are the main reason for high particle mass concentrations in busy street and road environments. In many Nordic municipalities the European environmental quality standard for inhalable particles (PM(10)) is exceeded due to these particles. In this study, particles from the wear of studded and studless friction tyres on two pavements and traction sanding were generated using a road simulator. The particles were characterized using particle sizers, Particle Induced X-Ray Emission Analysis and electron microscopy. Cell studies were conducted on particles sampled from the tests with studded tyres and compared with street environment, diesel exhaust and subway PM(10), respectively. The results show that in the road simulator, where resuspension is minimized, studded tyres produce tens of times more particles than friction tyres. Chemical analysis of the sampled particles shows that the generated wear particles consist almost entirely of minerals from the pavement stone material, but also that Sulfur is enriched for the submicron particles and that Zink is enriched for friction tyres for all particles sizes. The chemical data can be used for source identification and apportionment in urban aerosol studies. A mode of ultra-fine particles was also present and is hypothesised to originate in the tyres. Further, traction material properties affect PM(10) emission. The inflammatory potential of the particles from wear of pavements seems to depend on type of pavement and can be at least as potent as diesel exhaust particles. The results imply that there is a need and a good potential to reduce particle emission from pavement wear and winter time road and street operation by adjusting both studded tyre use as well as pavement and traction material properties.

  17. Development of Lead Free Energy Absorber for Space Shuttle Blast Container

    Science.gov (United States)

    Balles, Donald; Ingram, Thomas; Novak, Howard; Schricker, Albert

    1999-01-01

    The Space Shuttle is connected to the mobile launch platform (MLP) by four aft skirt hold down studs on each solid rocket booster (SRB). Prior to lift-off, the frangible nuts inside the aft skirt blast containers are severed into two nut halves by two pyrotechnic booster cartridges. This action releases the Space Shuttle and allows the hold down studs to eject through the aft skirt bore and then down into the MLP. USBI has been tasked to upgrade the blast container for two specific reasons: (1) To eliminate lead for environmental concerns, and (2) To reduce the chance of nut recontact with the holddown stud. Nut recontact with the stud has been identified as a likely contributor to stud hang-ups. This upgrade will replace the lead liner with a unique open cell aluminum foam material, that has commercial and military uses. The aluminum foam used as an energy absorber is a proven design in many other aerospace/defense applications. Additional benefits of using the open cell, energy absorbent aluminum foam in place of the solid lead liner are: (1) Lead handling / exposure and possible contamination, along with hazardous waste disposal, will be eliminated; (2) Approximately 200 lbs. weight savings will be contributed to each Space Shuttle flight by using aluminum foam instead of lead; (3) The new aluminum liner is designed to catch all shrapnel from frangible nuts, thus virtually eliminating chance of debris exiting the HDP and causing potential damage to the vehicle; (4) Using the lighter aluminum liner instead of lead, allows for easier assembly and disassembly of blast container elements, which also improves safety, operator handling, and the efficiency of operations.

  18. Emissions of road dust by winter tyres and the contributions of different road dust sources in road side particle samples; Talvirenkaiden poelypaeaestoet ja eri katupoelylaehteiden osuudet kadunvarrella keraetyissae hiukkasnaeytteissae

    Energy Technology Data Exchange (ETDEWEB)

    Kupiainen, K.; Pirjola, L.; Ritola, R.; Stojiljkovic, A.; Malinen, A.

    2013-09-01

    Aim of this study was to determine: (1) the relative contributions from pavement wear and traction sanding in PM{sub 10} road side air and road dust resuspension samples; (2) PM{sub 10} dust emissions from studded and studless tyres in on-road conditions. The study was conducted as part of the NASTA research program during the winter season 2011/2012. The studies were carried out in Suurmetsaentie and Viikintie in Helsinki, Finland. The results showed that dust from pavement aggregates was the largest source during spring, accounting for 40- 50 percent of the particulate matter in the air and resuspension samples. Based on studies on formation of dust, major source of the dust from pavement aggregates is the wear by studded tyres. Traction sand and road salt were used frequently during the winter 2011/2012. Sanding material explained about 25 percent of the road dust in the air and resuspension samples. Traction sanding is estimated to account for approximately few percent of the pavement dust via the sandpaper effect. Effect of road salt was few percent in the samples. The source contributions from pavement and traction sanding observed in spring 2011/2012 at Suurmetsaentie are similar to what has been estimated in previous studies conducted in the early 2000s in Finland. In a study conducted in the city of Hanko, it was estimated the contribution from traction sanding to be in average of about 10 percent. In another study in the center of Helsinki the contribution was estimated to be about half of the PM{sub 10}. The general perception in Finland has been that traction sanding is the main source of airborne road dust. Studies conducted in 2000s and the results of this study, however, indicate that traction sanding has been an important but not the main source of PM10 road dust even in winters with extensive use of gravel for traction control. Emissions of road dust by a single tyre consist of direct emissions of wear products as well as resuspension emissions of

  19. High molecular weight polypeptide bands specific for equine herpesvirus 4.

    Science.gov (United States)

    Zheng, M; Love, D N; Sabine, M

    1995-09-01

    Serum neutralisation (SN) and immunoblotting were used in attempts to distinguish between natural infections with the closely related viruses equine herpesvirus 1 (EHV-1) and equine herpes-virus 4 (EHV-4). Horse sera (n = 323) collected in 1990 from studs with no experience of EHV-1 abortions as well as 197 sera collected in 1992 from studs with a history of EHV-1 abortions were tested by SN. The two groups differed in the proportion with measurable EHV-1 antibody, the 1992 group being significantly higher. Both groups had high proportions with EHV-4 antibody and no serum had antibody to EHV-1 alone. Pools of positive sera were prepared as probes in immunoblots. High molecular weight (> 200 kDa) polypeptide bands specific for EHV-4 were detected. No bands specific for EHV-1 only were found. The specific EHV-4 polypeptides shared some properties with gp2 of EHV-1.

  20. Thermotemporal dynamics of contaminant bacteria and antimicrobials in extended porcine semen.

    Science.gov (United States)

    Althouse, G C; Pierdon, M S; Lu, K G

    2008-11-01

    Bacterial contamination of extended porcine semen has been associated with deleterious effects on both semen quality and sow fertility. Retrospective, prospective and in vitro studies were performed to delineate the prevalence and behavior of certain bacterial contaminants in extended semen, and antimicrobial pharmacodynamics in various semen diluents. Retrospective review of extended semen samples submitted from North American boar studs for microbiological screening at the University of Pennsylvania Reference Andrology Laboratory in 2005 and 2006 yielded bacteriospermia prevalence rates of 17% (144/832) and 26% (256/984), respectively. In a prospective study of regional boar studs, of 91 extended semen samples tested over 1-y, 29% were positive for bacteriospermia. Retrospective and prospective studies both showed that the preponderance of contaminant positive samples occurred during the fall months (Ptylosin, and lincomycin/spectinomycin (single drug or combination) ranged from 75 to over 360min, and was highly dependent (P<0.05) upon both type of bacteria and semen diluent.

  1. Testing of Compact Bolted Fasteners with Insulation and Friction-Enhanced Shims for NCSX

    International Nuclear Information System (INIS)

    Dudek, L.E.; Chrzanowski, J.H.; Gettelfinger, G.; Heitzenroeder, P.; Jurczynski, S.; Viola, M.; Freudenberg, K.

    2009-01-01

    The fastening of the National Compact Stellarator Experiment's (NCSX) modular coils presented a number of engineering and manufacturing challenges due to the high magnetic forces, need to control induced currents, tight tolerances and restrictive space envelope. A fastening method using high strength studs, jack nuts, insulating spacers, bushings and alumina coated shims was developed which met the requirements. A test program was conducted to verify the design. The tests included measurements of flatness of the spacers, determination of contact area, torque vs. tension of the studs and jack nuts, friction coefficient tests on the alumina and G-10 insulators, electrical tests, and tension relaxation tests due to temperature excursions from room temperature to liquid nitrogen temperatures. This paper will describe the design and the results of the test program.

  2. Use of an implant o-ring attachment for the tooth supported mandibular overdenture: a clinical report.

    Science.gov (United States)

    Guttal, Satyabodh S; Tavargeri, Anand K; Nadiger, Ramesh K; Thakur, Srinath L

    2011-07-01

    Retention of a mandibular denture can be achieved by an implant-retained or natural tooth-retained bar and stud attachment in the anterior segment of the mandible. The same design principles holds true for both implant-retained and tooth-retained methods of anchoring the bar and stud attachment. A simple and cost effective treatment for more complex implant overdenture is the concept of conventional tooth-retained overdentures. When few firm teeth still remain in a compromised dentition, preservation of these teeth for overdentures can improve retention and stability. The authors present a clinical report of a patient treated with a mandibular tooth-borne overdenture with bar and O-ring attachment. A splinted bar supported the prosthesis and an O-ring retained the denture.

  3. Transmission of Sound Through Double-Plate Panel Structures

    DEFF Research Database (Denmark)

    Dickow, Kristoffer Ahrens; Domadiya, Parthkumar Gandalal; Andersen, Lars

    2011-01-01

    In the present paper, a finite-element model of a single-stud double-plate panel structure is implemented to investigate the transmission of diffuse incident sound waves through typical simple lightweight constructions. A parameter study of the effect of including the internal acoustic medium...... the fluid continuum elements are replaced by a simple spring connection between the two plates. The investigations are performed as parameter studies focusing on the effect of changes in the model. A fully coupled analysis is performed in which solid continuum finite elements are adopted for the structure......, whereas the acoustic medium is discretized into fluid continuum elements. The computations are carried out in frequency domain in the range below 2 kHz and the load acts as an approximated diffuse field on one side of the panel. The results show that if some of the studs are free to bend, the transmission...

  4. [William Moorcroft (1767-1825). Veterinarian, explorer in Asia--and spy?].

    Science.gov (United States)

    Steinigeweg, W

    1991-05-01

    From 1790 to 1791 the surgeon William MOORCROFT studied veterinary medicine in Alford. He was the first Englishman with a complete formal veterinary education. In 1808 he gave up his horse practice and went into service of the East India Company as superintendent of the Company's Indian stud. Search for appropriate stud-horses and his efforts for opening up trading-routes from India to inner Asia induced him to exploring expeditions into the regions of the southwest Himalayas, the Hindu kush, Samarkand and Afghanistan. There he made also a lot of geographical and biological observations. He was not only one of the European pioneer Himalaya explorers but became also an early participant of the later so called "Great Game", the struggle between England and Russia for supremacy in Central Asia.

  5. Optimizing distance-based methods for large data sets

    Science.gov (United States)

    Scholl, Tobias; Brenner, Thomas

    2015-10-01

    Distance-based methods for measuring spatial concentration of industries have received an increasing popularity in the spatial econometrics community. However, a limiting factor for using these methods is their computational complexity since both their memory requirements and running times are in {{O}}(n^2). In this paper, we present an algorithm with constant memory requirements and shorter running time, enabling distance-based methods to deal with large data sets. We discuss three recent distance-based methods in spatial econometrics: the D&O-Index by Duranton and Overman (Rev Econ Stud 72(4):1077-1106, 2005), the M-function by Marcon and Puech (J Econ Geogr 10(5):745-762, 2010) and the Cluster-Index by Scholl and Brenner (Reg Stud (ahead-of-print):1-15, 2014). Finally, we present an alternative calculation for the latter index that allows the use of data sets with millions of firms.

  6. Remote maintenance in the building of the reactor of power plants

    International Nuclear Information System (INIS)

    Bonin, R.

    1984-01-01

    Examples describing the different operations requiring remote control for reactor maintenance are given. These operations include: refueling machines (for closure stud, vessel flange cleaning, screwing plug for channel head, swimming pool decontamination) in-service inspection machines (MIS, spider for eddy current testing of steam generator, television) and routine or accidental maintenance (leak detection in water boxes, maintenance spider, opening or closing primary manways, decontamination manipulators and various automatic control devices) [fr

  7. How do Epistemological Beliefs Affect Training Motivation?

    OpenAIRE

    Ingrid Molan; Eva Boštjančič

    2014-01-01

    Studies show that human resources development through workplace training is one of the major investments in the workforce in today’s globalized and challenging market. As training motivation influences employees’ preparation for the workplace training, their respond to the programme, their learning outcome, their performance levels, and use of acquired knowledge and skills in their workplace it seems logical to investigate and determine antecedents of training motivation. The aim of this stud...

  8. Effects of Growth Hormone (GH) Therapy Withdrawal on Glucose Metabolism in Not Confirmed GH Deficient Adolescents at Final Height

    OpenAIRE

    Prodam, Flavia; Savastio, Silvia; Genoni, Giulia; Babu, Deepak; Giordano, Mara; Ricotti, Roberta; Aimaretti, Gianluca; Bona, Gianni; Bellone, Simonetta

    2014-01-01

    CONTEXT OBJECTIVE: Growth hormone deficiency (GHD) is associated with insulin resistance and diabetes, in particular after treatment in children and adults with pre-existing metabolic risk factors. Our aims were. i) to evaluate the effect on glucose metabolism of rhGH treatment and withdrawal in not confirmed GHD adolescents at the achievement of adult height; ii) to investigate the impact of GH receptor gene genomic deletion of exon 3 (d3GHR). DESIGN SETTING: We performed a longitudinal stud...

  9. Uruguay - Policy Options for Improving the Efficiency of Uruguay’s Railway Sector : Consolidated Report

    OpenAIRE

    World Bank

    2010-01-01

    The aim of this paper is to review the state of the productive infrastructure of Uruguay and the development policies that govern it and to propose policy options for the long term contribution to achieving a higher level of economic and sustainable development, based on the premise that there is a link between the development of a country's infrastructure and its economic growth. The stud...

  10. Raman Spectroscopy Evidence of 1:1:1 Complex Formation during Dissolution of WO3 in a Melt of K2S2O7: K2SO4

    DEFF Research Database (Denmark)

    Berg, Rolf W.; Ferré, Irene Maijó; Schäffer, Susan Jeanne Cline

    2006-01-01

    Highly inert yellow solid WO3 was found to be soluble in considerable amounts in molten K2S2O7 at elevated temperatures (650 8C), if only similar molar amounts of sulfates were also present. The dissolution reaction of WO3 into a melt consisting of a 1:1 molar mixture of K2S2O7 and K2SO4 was stud...

  11. Economic feasibility of products from inland west small-diameter timber. Forest Service general technical report

    Energy Technology Data Exchange (ETDEWEB)

    Spelter, H.; Wang, R.; Ince, P.

    1996-05-01

    A large part of the forests located in the Rocky Mountain region of the U.S. West (inland West) is characterized by densely packed, small-diameter stands. The purpose of this study was to examine the economic feasibility of using small-diameter material from this resource to manufacture various wood products: oriented strandboard (OSB), stud lumber, random-length dimension lumber, machine-stress-rated random-length lumber, laminated veneer lumber (LVL), and market pulp.

  12. Hepatitis B and delta virus infection among "at risk" populations in south east London.

    OpenAIRE

    Smith, H M; Alexander, G J; Webb, G; McManus, T; McFarlane, I G; Williams, R

    1992-01-01

    STUDY OBJECTIVE--The hepatitis delta virus (HDV) contributes significantly to the morbidity and mortality of hepatitis B virus (HBV) infection, which is particularly prevalent among intravenous drug users and male homosexuals. A recent report has indicated that HDV first appeared in the South East London intravenous drug using population in 1982. The aim of the present study was to assess the prevalence of HDV in these two groups at risk of HBV infection in South East London. DESIGN--The stud...

  13. Islet amyloid polypeptide in the control of food intake : An experimental study in the rat

    OpenAIRE

    Arnelo, Urban

    1997-01-01

    Control of food intake and satiety are physiologically complex processes, thatonly partly are understood. Several hormonal peptides have been proposed to mediatesatiety. Islet amyloid polypeptide (IAPP) is a recently discovered 37 amino acidpeptide, mainly produced by the pancreatic ß-cells. Initially, IAPP was shownto impair glucose tolerance at supra-physiological plasma concentrations and wasspeculated to be involved in the development of type-2 diabetes. More recent stud...

  14. The association between attachment style and uni- and bi-directional pursuer-distancer patterns in couples: A clinical sample of couples in counseling

    OpenAIRE

    Davies, Lorin Christopher

    2004-01-01

    This study examined the relationship between adult attachment style and pursuer-distancer patterns in couples. Both uni- and bi-directional pursuer-distancer patterns were studied. Participants were 67 individuals (including 32 couples) in therapy. Each partner, independent of the other, completed an anonymous questionnaire containing the Multi-item Measure of Adult Romantic Attachment (Brennan, Clark, & Shaver, 1998) and a four-item measure of pursuer-distancer pattern designed for this stud...

  15. A qualitative study exploring midlife women?s stages of change from domestic violence towards freedom

    OpenAIRE

    Keeling, June; Smith, Debbie; Fisher, Colleen

    2016-01-01

    Background Domestic Violence (DV) remains a significant global health problem for women in contemporary society. Existing literature on midlife women?s experiences of domestic violence is limited and focuses on health implications. Leaving a violent relationship is a dynamic process that often requires multiple attempts and separations prior to final termination. The aim of this study was to explore the process of leaving a violent relationship for midlife women. Methods This qualitative stud...

  16. Young Consumer Behaviour Towards Tourism Products

    OpenAIRE

    Adriana Anca Cristea; Mihaela Simona Apostol; Tatiana Corina Dosescu

    2014-01-01

    Tourism is considered to be an important branch of the Romanian economy. However, its contribution to the GDP is extremely low. Inbound tourism is reduced, the sole indicator which is constanly increasing being the number of Romanian tourists who travel abroad. We assume that a good way of increasing domestic tourism in Romania would be to get the young population practise various forms of tourism. Conducting a market survey in consumer behaviour towards tourism products among pupils and stud...

  17. Pierce the fog of mobile service and advertising adoption

    OpenAIRE

    Vatanparast, Ramin

    2010-01-01

    The heightened interest towards mobile service and advertising among academic and industry circles has led to the need to understand the key factors effecting the use, adoption and applicability in the realm of mobile business. This dissertation seeks to contribute to the body of knowledge covering the field of mobile advertising and service adoption. This thesis contributes to the literature by providing some insight to these important areas through a set of qualitative and quantitative stud...

  18. Multimethod Personality Profile Assessment Methodology: Alcohol Abusers versus Nonalcoholic Controls.

    Science.gov (United States)

    1982-12-01

    findings have been interpreted in terms of sociopathy and neurotic depression or anxiety. Machover et al. (123) interpreted elevated scale 5 (Mf)* findings...ics to scale 4 of the MMPI. Q J Stud Alcohol 24:23-38 (1963). 122. Machover , S., and F. S. Puzzo. Clinical and objective studies of per- sonality... Machover , S., F. S. Puzzo, K. Machover , and F. Plumeau. Clinical and objective studies of personality variables in alcoholism. III: An objective study of

  19. Pengaruh Efikasi Diri dan Motivasi Berwirausaha Terhadap Minat Berwirausaha Pada Mahasiswa Fakultas Ekonomi dan Bisnis Universitas Sumatera utara

    OpenAIRE

    Sianipar, Nehemia Desi Hanayati

    2016-01-01

    The purpose of this research is to identify and analyze the influence of self-efficacy and entrepreneurship motivation towards entrepreneurship interest in Students Faculty of Economics and Business University of North Sumatera. The population in this research is the Entrepreneurship Concentration of Management Student Faculty of Economics and Business University of North Sumatera that add up to 164 people. The sample used in this study is the Entrepreneurship Concentration of Management Stud...

  20. PBL – Reflections after 10 years

    DEFF Research Database (Denmark)

    Soler, José

    The poster describes course 34357 at DTU, where PBL has been used in the last 10 years. While the course responsibles where not aware initially that the used methodology was PBL, the poster describes the triggering idea for the initial taken choices, i.e. homogenize working methodologies for stud...... for students with different backgrounds (technical, cultural, personal) and prepare them to work independently towards their incipient arrival to the job market, within the context of an specific engineering realm...

  1. Precast/Prestressed Concrete Experiments Performance on Non-Load Bearing Sandwich Wall Panels

    Science.gov (United States)

    2011-01-01

    data needed , and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this...value needed . The panels are prefabricated, allowing for rapid erection of the building and short construction schedules. The use of concrete...quarter- points have developed in the exterior wythe at this point Failure of the ties (lattice) Failure of the welds conecting the studs to the plate

  2. Nuclear reactor control room construction

    Science.gov (United States)

    Lamuro, R.C.; Orr, R.

    1993-11-16

    A control room for a nuclear plant is disclosed. In the control room, objects labelled 12, 20, 22, 26, 30 in the drawing are no less than four inches from walls labelled 10.2. A ceiling contains cooling fins that extend downwards toward the floor from metal plates. A concrete slab is poured over the plates. Studs are welded to the plates and are encased in the concrete. 6 figures.

  3. CSR in Brazil : The impact of culture and values

    OpenAIRE

    Sainio, Hanna-Kaisa Maaria

    2017-01-01

    CSR, Corporate Social Responsibility, is growingly being adopted in Brazilian companies and other organizations. The literature about the phenomenon suggests that in Brazil, like in many developing countries, the nature of CSR is strongly based on philanthropic culture for historical, political, and social reasons. Another explanation is the weak institutional framework, practically forcing non-governmental actors such as the private sector to take responsibility over social issues. This stud...

  4. Hoidu USA dollari ja euro eest! / Birjo Must ; kommenteerinud Paul Lukka, Dmitri Laus

    Index Scriptorium Estoniae

    Must, Birjo

    2010-01-01

    SEB privaatpanganduse strateegi Peeter Koppeli sõnul peaks säästud peale arenenud riikide valuutade laiali jagama ka arenevate riikide valuutade, nn. toormevaluutade ja isegi väärismetallide hinnaliikumisest osa saavate väärtpaberite vahel. Swedbanki valuutatoodete müügiüksuste juhi Art Lestbergi hinnangul on oluline hoida oma vahendeid selles valuutas, mida võib tulevikus vaja minna

  5. Central corneal thickness in children with adenotonsillary hypertrophy

    Directory of Open Access Journals (Sweden)

    Emine Cinici

    2015-12-01

    Conclusions: We could not find a statistically significant distinction between the corneal thickness and ATH. Further stud- ies in more advanced age groups or using a wider range of patients series will test whether this result is also observed in the children who have been exposed to the disease for longer periods of time. [Arch Clin Exp Surg 2015; 4(4.000: 208-214

  6. Means for attaching remote handling tongs

    International Nuclear Information System (INIS)

    Kearney, A.S.

    1982-01-01

    A remote handling tong has a replaceable slave head assembly provided with a spring biased latch which engages a recess in a barrel member of the tong. The latch bolt extends transverse to the barrel member, and has studs which project at each end beyond the body of the slave head assembly so as to engage respective linear cam surfaces at a station for parking the slave head assembly. (author)

  7. Proceedings: Economic and Social Analysis Workshop Held at St. Louis, Missouri on 25-29 October 1982,

    Science.gov (United States)

    1983-10-01

    WATERWAYS STUD’ PRINCIPAL ASSUMPTIONS FOR NWS SCENARIOS’ Principal Assumptions Baseline High Use Loss Use Bad Energs Defense High Coal Esports I...in the system have identical capacities and supply (tonnage-delay cost) relationships as shown in Figures 3a and 3b. Now suppose there are three... identical with the market interest ., rate or the rate of return. 2. "Interest rate" refers to the cost of borrowing money, expressed in percentages of the

  8. Selective Removal of Natural Occlusal Caries by Coupling Near-infrared Imaging with a CO2 Laser

    OpenAIRE

    Tao, You-Chen; Fried, Daniel

    2008-01-01

    Laser removal of dental hard tissue can be combined with optical, spectral or acoustic feedback systems to selectively ablate dental caries and restorative materials. Near-infrared (NIR) imaging has considerable potential for the optical discrimination of sound and demineralized tissue. Last year we successfully demonstrated that near-IR images can be used to guide a CO2 laser ablation system for the selective removal of artificial caries lesions on smooth surfaces. The objective of this stud...

  9. Interactions of vegetable proteins with other polymers: Structure-function relationships and applications in the food industry

    OpenAIRE

    Lin, Duanquan; Lu, Wei; Kelly, Alan L.; Zhang, Longtao; Zheng, Baodong; Miao, Song

    2017-01-01

    In recent years, there has been increasing interest in vegetable proteins, due to their various health beneficial functions and wide applications in the food industry. Vegetable proteins combined with other edible polymers can be used to improve the quality and nutritional value of food products. In these complex food systems, interactions between different components are inevitable, and these interactions have a significant influence on the structure and functions of food products. This stud...

  10. Immobilization of Lipase from Candida rugosa on Chitosan Beads for Transesterification Reaction

    OpenAIRE

    M. Nasratun; H. A. Said; A. Noraziah; A. N.A. Alla

    2009-01-01

    Problem statement: Further study is recommended to improve the immobilization technique and the immobilized lipases performance as catalysis in transesterification reaction. Approach: To investigate the ability of immobilized lipase on chitosan beads to catalyze the transesterification of cooking oil to an ester. The porous bead of chitosan was used for immobilization of lipase from Candida rugosa by physical adsorption. Parameters like reaction time and oil to methanol molar ratios were stud...

  11. Ecommerce drivers and marketing partnerships in successful export marketing of Finnish born globals

    OpenAIRE

    Penttinen, Jukka

    2015-01-01

    This study examines the utilization of ecommerce and marketing partnerships as part of born global internationalization strategies. The study will combine the existing literature of born global internationalization, export marketing strategies and ecommerce as part of internationalization to form an understanding on how two Finnish health and welfare sector born globals internationalize, and how ecommerce drivers affect their internationalization. Because of the explorative nature of the stud...

  12. Students? perspectives on promoting healthful food choices from campus vending machines: a qualitative interview study

    OpenAIRE

    Ali, Habiba I.; Jarrar, Amjad H.; Abo-El-Enen, Mostafa; Al Shamsi, Mariam; Al Ashqar, Huda

    2015-01-01

    Background Increasing the healthfulness of campus food environments is an important step in promoting healthful food choices among college students. This study explored university students? suggestions on promoting healthful food choices from campus vending machines. It also examined factors influencing students? food choices from vending machines. Methods Peer-led semi-structured individual interviews were conducted with 43 undergraduate students (33 females and 10 males) recruited from stud...

  13. Prevalence of Oral Complications occurring in a Population of Pediatric Cancer Patients receiving Chemotherapy

    OpenAIRE

    Gandhi, Kapil; Datta, Geetika; Ahuja, Shilpa; Saxena, Tanvi; G Datta, Ankush

    2017-01-01

    Multiagent chemotherapy, radiotherapy, or a combination of both are the contemporary methods of cancer treatment. With medical advancements, though cure rates have increased considerably, focus is now shifted to the potential early and late complications of the same. The aim of this study was to assess the early oral complications in pediatric patients receiving chemotherapy. Sixty-two children with cancer undergoing chemotherapy with the mean age of 7.42 ? 3.6 years were included in the stud...

  14. Indigenous Architecture for Expeditionary Installations

    Science.gov (United States)

    2006-03-01

    structures like those shown in Figure 1.1. Historically, these facilities experience unacceptable wear after several months in the harsh desert climate...additives include sand, straw and grasses while mineral additives include lime, asphalt emulsion and Portland cement (Elizabeth, 2005: 100...millimeters (mm) thick. The main structural components are 160 mm metal studs . The exterior is sheathed with 4 mm plywood and clad with 0.6 mm steel siding

  15. Pavement wear and airborne dust pollution in Norway

    OpenAIRE

    Snilsberg, Brynhild

    2008-01-01

    In several large cities in Norway the traffic volume is high. The use of studded tires and other friction enhancing measures during winter leads to significant pavement wear, which in turn leads to an increase in the amount of airborne particulate matter, often exceeding the limits set in the ambient air regulation. This represents a nuisance or health risk for people being exposed to the pollution. According to regulations set by the European Union particulate matter is measured and regulate...

  16. Paint Pavement Marking Performance Prediction Model That Includes the Impacts of Snow Removal Operations

    Science.gov (United States)

    2011-03-01

    Hypothesized that snow plows wear down mountain road pavement markings. 2007 Craig et al. -Edge lines degrade slower than center/skip lines 2007...retroreflectivity to create the models. They discovered that paint pavement markings last 80% longer on Portland Cement Concrete than Asphalt Concrete at low AADT...retroreflectivity, while yellow markings lost 21%. Lu and Barter attributed the sizable degradation to snow removal, sand application, and studded

  17. MX Siting Investigation. Geotechnical Evaluation. Aggregate Resources Study, Lake Valley, Nevada.

    Science.gov (United States)

    1981-02-27

    use of aggregate material for asphaltic concrete, base course in road construction, or ballast material. However, many of the suitability tests for...ranged from 5 to 14 feet (1.5 to 4.3 m). While the Verification stud - ies are not specifically designed- to generate aggregate data, the sampling...AGGREGATE CHARACTERISTIC’LSI CASU CASI ABRASION RESISTANCE. PERCENT WEAR 2 អ អ >50 No S04 12 --12 --12 COARSE AGGREGATE SOUNDNESS, M O 1 1

  18. Effect of health development assistance on health status in sub-Saharan Africa

    OpenAIRE

    Negeri, Gutema; Haile Mariam,Damen

    2016-01-01

    Keneni Gutema Negeri,1 Damen Halemariam,21School of Public and Environmental Health, Health Service Management Unit, College of Medicine and Health Sciences, Hawassa University, Hawassa, 2College of Medicine and Health Sciences, School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia Introduction: Data on the effect of health aid on the health status in developing countries are inconclusive. Moreover, studies on this issue in sub-Saharan Africa are scarce. Therefore, this stud...

  19. Green Hotel Management and Green Star Practice: A Case Study of Best Western President Istanbul Hotel

    OpenAIRE

    ATAY, Lütfi; DİLEK, S. Emre; YILDIRIM, H. Mehmet

    2014-01-01

    Defined as environmentally-sensitive marketing, green marketing is applied as a green hotel by accommodation establishments, and as a result of this application, hotels are entitled to be awarded a green star certificate. While those international hotel establishments which have become a brand are carrying out important activities with respect to the green hotel practice, it might be stated that hotels in Turkey are at the beginning level concerning sensitivity to the environment. In the stud...

  20. Radar techniques using array antennas

    CERN Document Server

    Wirth, Wulf-Dieter

    2013-01-01

    Radar Techniques Using Array Antennas is a thorough introduction to the possibilities of radar technology based on electronic steerable and active array antennas. Topics covered include array signal processing, array calibration, adaptive digital beamforming, adaptive monopulse, superresolution, pulse compression, sequential detection, target detection with long pulse series, space-time adaptive processing (STAP), moving target detection using synthetic aperture radar (SAR), target imaging, energy management and system parameter relations. The discussed methods are confirmed by simulation stud

  1. Flora Tristan: Militant Journalism in Times of Revolt

    OpenAIRE

    Maria Inês Amarante

    2010-01-01

    This article, which is the fruit of bibliographic and document research, presents the itinerary of Flora Tristan and her insertion in journalism of her time, at the first half of the 19th century. It identifies various factors of the feminine condition in post-revolutionary French society under transformation and at the beginning of the Industrial Revolution, the thinking of its most important theoreticians and Tristan’s experience in relation to this reality. The central focus of the stud...

  2. A Qualitative Analysis of the Assignment of Human Resource Officer (HRO) Subspecialty Codes to HR Billets

    Science.gov (United States)

    2006-09-01

    ensures that requirements are not overstated, that each SSP has a pyramidal structure that fosters healthy career progression for the respective Navy...stipulated in SSP billet criteria statements. • Shape graduate education billet requirements into a pyramid structure; look for education...Run Model Make Model Export from Python via SAS Sections/Course Students/Curriculum Loops Studs Model Worksheet CLICKME Worksheet: Min/Max

  3. A case study of human hepatic hydatidosis and the biochemical Profile of cyst wall and fluid

    Directory of Open Access Journals (Sweden)

    Irshadullah Malik

    1997-04-01

    Full Text Available The non specific haematological changes and negative Casoni's test suggest that ultrasonography is more reliable for the diagnosis and epidemiological stud­ies of human hydatidosis. The majo.r biochemical compo­nents like glycogen, proteins, nucleic acids, total lipids, triglycerides, cholesterol, free fatty acids and phospho­lipid fractions were analysed and compared with the other host's cysts. The differences were discussed in the light of strain variations in Echinococcus granulosus.

  4. The ribosomal protein uL22 modulates the shape of the nascent protein exit tunnel

    DEFF Research Database (Denmark)

    Wekselman, I.; Zimmerman, E.; Davidovich, C.

    2017-01-01

    Nascent proteins progress through an elongated tunnel until theyexit from the ribosome. Biochemical, genetic and structural stud-ies have shown that the tunnel is not just a passive path, but alsohas regulatory properties. Erythromycin is a clinically usefulantibiotic that binds to an rRNA pocket...... and specific sequences within nascent chains trigger confor-mational rearrangements in the exit tunnel that are essential forthe translation of specific genes...

  5. Corporate information transparency on the Internet by listed companies in Spain (IBEX35) and Mexico (IPYC)

    OpenAIRE

    Briano Turrent, Guadalupe C.; Rodr??guez Ariza, L??zaro

    2012-01-01

    Financial and non-financial disclosure play a central role in the functioning of capital markets. In this context, the Internet has been adopted as an effective mechanism for large companies to disseminate corporate information. The institutional theory approach has been applied to identify both formal (fundamentally legal and economic) and informal factors that significantly influence listed companies??? level of corporate transparency on the Internet. Our work aims to build on existing stud...

  6. Bribes, taxes and regulations: Business constraints for micro enterprises in Tanzania

    OpenAIRE

    Fjeldstad, Odd-Helge; Kolstad, Ivar; Nygaard, Knut

    2006-01-01

    This paper analyses the business environment for micro enterprises in Tanzania based on survey data. The primary objective of the study is to identify major constraints facing the firms' business operations. Taxation, corruption, and regulations in the form of licences and permits, are found to be the most important constraints on business operations. Reported constraints vary according to firm characteristics such as age, location, education and gender of the owner. Contrary to previous stud...

  7. Educating reflective practitioners in large classrooms

    OpenAIRE

    Geraldi, Joana; Thuesen, Christian

    2017-01-01

    Projects abound in society, and turned from an ‘accidental profession’ to an attractive career path (Pinto & Kharbanda, 1995). In this line, engineers and engineering students are increasingly recognizing the criticality of project management to their own profession. The consequence is that we need to educate an increasing number of students in project management. At the Technical University of Denmark (DTU) - one of the leading engineering universities in Scandinavia - the number of stud...

  8. Employee perspectives on individualized pay : Attitudes and fairness perceptions

    OpenAIRE

    Stråberg, Teresia

    2010-01-01

    The use of various types of individualized pay setting has increased dramatically in Sweden. In order for individualized pay to work as an incentive, the pay system has to be perceived as fair. This thesis focuses on the various subjective perceptions that arise in relation to individualized pay setting, since such perceptions may have consequences for employee attitudes and behavior. Using survey data from Swedish human service workers (Study I and II) as well as other public employees (Stud...

  9. Gut microbiomes of mobile predators vary with landscape context and species identity

    OpenAIRE

    Tiede, Julia; Scherber, Christoph; Mutschler, James; McMahon, Katherine D.; Gratton, Claudio

    2017-01-01

    Abstract Landscape context affects predator–prey interactions and predator diet composition, yet little is known about landscape effects on insect gut microbiomes, a determinant of physiology and condition. Here, we combine laboratory and field experiments to examine the effects of landscape context on the gut bacterial community and body condition of predatory insects. Under laboratory conditions, we found that prey diversity increased bacterial richness in insect guts. In the field, we stud...

  10. Determinação de fósforo biodisponível em rações de peixes utilizando extração assistida por ultra-som e espectrofotometria no visível Determination of bioavailable phosphorus in fish feeds by ultrasound extraction and visible spectrophotometry

    OpenAIRE

    Paula M. de Moraes; Vanessa R. Loureiro; Pedro M. Padilha; Renato de Cássio F. Neves; Mayra A. D. Saleh; Felipe A. dos Santos; Fábio A. Silva

    2009-01-01

    The aim of the present work was to develop and optimize a method for determination of bioavailable phosphorus in samples of feces and fish feed using ultrasound extraction and subsequent quantification by visible spectrophotometry. Using as extractor solution HNO3 0.50 mol L-1, the great conditions of extraction established were: sample mass - 100 mg, samples granulometry - < 60 µm, sonification time - five cycles of 40 s and ultrasound potency - 136 W. The proposed method was applied in stud...

  11. Anxiety and depression, cognitive coping strategies, and health locus of control in patients with digestive system cancer

    OpenAIRE

    Kulpa, Marta; Kosowicz, Mariola; Stypu?a-Ciuba, Beata J.; Kazalska, Dorota

    2014-01-01

    Introduction Contemporary psycho-oncology focuses on the study of the psychological determinants of the functioning of cancer patients. Among the psychological factors that significantly affect the functioning of the patients are anxiety and depressive disorders. Aim To assess the psychological functioning of patients with digestive system cancer in the cancer-treating process and to develop guidelines for psychological care dedicated to this group of patients based on the results of the stud...

  12. Activity of andrographolide against chikungunya virus infection

    OpenAIRE

    Phitchayapak Wintachai; Parveen Kaur; Regina Ching Hua Lee; Suwipa Ramphan; Atichat Kuadkitkan; Nitwara Wikan; Sukathida Ubol; Sittiruk Roytrakul; Justin Jang Hann Chu; Duncan R. Smith

    2015-01-01

    Chikungunya virus (CHIKV) is a re-emerging mosquito-borne alphavirus that has recently engendered large epidemics around the world. There is no specific antiviral for treatment of patients infected with CHIKV, and development of compounds with significant anti-CHIKV activity that can be further developed to a practical therapy is urgently required. Andrographolide is derived from Andrographis paniculata, a herb traditionally used to treat a number of conditions including infections. This stud...

  13. Domestic policy responses to the food price crisis: The case of Bolivia

    OpenAIRE

    Schüttel, Carsten; Kleinwechter, Ulrich; Ihle, Rico; Grethe, Harald

    2011-01-01

    In face of the global food crisis of 2007–2008, severe concerns arose about how developing countries would be affected by the extreme short-term fluctuations in international commodity prices. We examine the effects of the crisis on Bolivia, one of the poorest countries of the Americas. We focus on the effectiveness of the domestic policy interventions in preventing spillovers of the development of international food prices to domestic markets. Using a cointegration model, we stud...

  14. Are fatigue-related EMG-parameters correlated to trunk extensor muscles fatigue induced by the Sörensen test?

    OpenAIRE

    Demoulin Christophe; George, Florian; Matheve, Thomas; Jidovtseff, Boris; Vanderthommen, Marc

    2016-01-01

    The Sorensen test has been extensively studied and is a rapid, simple, and reproducible evaluation of the trunk extensor muscles [1]. It is often considered as a fatigue test because fatigue-related electromyographic (EMG) parameters change throughout the test [2]; however, only recently it has been confirmed that this test induces a decrease of trunk extensor force during a maximal voluntary contraction (MVC) [3], which best characterises muscle fatigue. The main aim of this stud...

  15. Debate on Global Warming as a Socio-Scientific Issue: Science Teaching towards Political Literacy

    Science.gov (United States)

    Pereira dos Santos, Wildson Luiz

    2014-01-01

    The focus of this response to the original article by Tom G. H. Bryce and Stephen P. Day ("Cult Stud Sci Educ." doi:10.1007/s11422-012-9407-1, 2013) is the use of empirical data to illustrate and expand the understanding of key points of their argument. Initially, I seek to discuss possible answers to the three questions posed by the…

  16. The Case for Addressing Operator Fatigue

    OpenAIRE

    Duffy, Jeanne F.; Zitting, Kirsi-Marja; Czeisler, Charles A.

    2015-01-01

    Sleep deficiency, which can be caused by acute sleep deprivation, chronic insufficient sleep, untreated sleep disorders, disruption of circadian timing, and other factors, is endemic in the U.S., including among professional and non-professional drivers and operators. Vigilance and attention are critical for safe transportation operations, but fatigue and sleepiness compromise vigilance and attention by slowing reaction times and impairing judgment and decision-making abilities. Research stud...

  17. Environmental interference: impact of acoustic noise on seismic communication and mating success

    OpenAIRE

    Shira D. Gordon; George W. Uetz

    2012-01-01

    Sound is abundant in the environment, often creating "noise" that interferes with animal communication. Animals cope with acoustic interference in a variety of ways, including raising their signal volume (the Lombard effect), changing the pattern, frequency or duration of signals, or changing the time of day when signaling. Although many arthropods use substrate-borne vibration (seismic) signals, the effect of interference from (airborne) acoustic noise on their communication is not well stud...

  18. Development of Self Regulated Learning Model in Studying Nursing (Srlsn) to Improve Student Learning Competence

    OpenAIRE

    Nahariani, Pepin; Nursalam, Nursalam; Triharini, Mira; Probowati, Ririn

    2013-01-01

    Introduction: New students at the college have to adjust to the learning process in a way more independent, not dependent on the lecturer, and self-regulation in learning. The purpose of this study is to develop a model of competence SRLSN to increased achievement among undergraduate students in the fourth semester of nursing STIKES Pemkab Jombang. Methods: The design used is explanatory and quasi-experimental pre-post test with control group. The population in this study were 71 nursing stud...

  19. PILLARS OF THE AUDIT ACTIVITY: MATERIALITY AND AUDIT RISK

    OpenAIRE

    ANA MARIA JOLDOŞ; IONELA CORNELIA STANCIU; GABRIELA GREJDAN

    2010-01-01

    The purpose of this article is to present the issues of materiality and audit risk within the activity of financial audit. The concepts of materiality and audit risk are described from a theoretical perspective, providing approaches found within the national and international literature and within the specific legislation. A case study on the calculation of materiality and audit risk for an entity is presented in the last part of the article. Through the theoretical approach and the case stud...

  20. Structure transitions between copper-sulphate and copper-chloride ...

    Indian Academy of Sciences (India)

    Administrator

    strate that co-adsorbed sulphate ions in the (√3 × √3)R30° UPD adlayer are replaced by chloride ions and, ..... phase 1 by the (5 × 5)-like chlo- ride phase 2 was mentioned in. 45,46,48,56 but not stud- ied in detail. These authors suggested that the replacement of SO. 2. 4. – .... A nonlinear regression fit of (1) to the experi-.

  1. die teeltstr.uktuur van die suid.afrikaanse vleismerino

    African Journals Online (AJOL)

    However. a dctinite hierarchy was already apparent in the genetic structure of thc brccd u'ltilc genctit matcrial tronr the upper ... The t'lorr' of'gencs f'ronr thc appcndir rcgister to thc stud industry decreased rapidly during the decade al'tcr. 196ll62 rs a rcsult ol lhe ..... ENGELBRECHT, G.C., 1965. Genetic study of the Ayrshire ...

  2. Stress-strain distribution at bone-implant interface of two splinted overdenture systems using 3D finite element analysis

    OpenAIRE

    Hussein, Mostafa Omran

    2013-01-01

    PURPOSE This study was accomplished to assess the biomechanical state of different retaining methods of bar implant-overdenture. MATERIALS AND METHODS Two 3D finite element models were designed. The first model included implant overdenture retained by Hader-clip attachment, while the second model included two extracoronal resilient attachment (ERA) studs added distally to Hader splint bar. A non-linear frictional contact type was assumed between overdentures and mucosa to represent sliding an...

  3. Joppa preserve – wetland and wildlife habitat restoration

    OpenAIRE

    Tickle, Greg; Clary, Melinda

    2001-01-01

    Joppa Preserve is a representative piece of a greater Trinity River, bottomland hardwood forest that once dominated this portion of North Texas. Located in Dallas County, the existing core (327 acres) of the project is located downstream of the Dallas Floodway, a flood damage reduction project completed in 1959. As the project sponsors, Dallas County and the U.S. Army Corps of Engineers (USACE) initiated a feasibility study with project implementation costs estimated at $12,000,000. This stud...

  4. Correlation between Intake of Dietary Fiber and Adherence to the Korean National Dietary Guidelines in Adolescents from Jeonju

    OpenAIRE

    Park, Sunmi; Na, Woori; Kim, Misung; Kim, Eunsoo; Sohn, Cheongmin

    2012-01-01

    This study surveyed dietary intake and adherence to the Korean national dietary guidelines in Korean adolescents. To elucidate basic data for use in nutrition education, which aims to improve adolescent compliance with the national dietary guidelines and to increase the intake of dietary fiber, we evaluated the sources of fiber in adolescent diets. This study included 182 male and 212 female students from 2 middle schools in the Jeonju province. From November 15~20, 2011, we surveyed the stud...

  5. Coming out of the Television: LGBT-themed Made-for-Television Movies as Critical Media Pedagogy

    OpenAIRE

    Craig, David Randolph

    2014-01-01

    Since the early 1970s, an important but under-examined subgenre of Made-for-Television Movies have foregrounded critical LGBT concerns, including coming out, parental custody, HIV/AIDS, gays in the military, and hate crimes or featured affirmative LGBT representations. These programs, often highly-rated and critically-acclaimed, were nonetheless sites of political contestation from social conservatives and LGBT activists. Through the lenses of critical media pedagogy, critical cultural stud...

  6. Numerical simulation of near surface rail cracks subject to thermal contact stress

    OpenAIRE

    Fletcher, D.I.

    2014-01-01

    Boundary element modelling was conducted to investigate rail cracks subject to combined thermal and contact loading such as occurs in 'stud' or 'squat type' defects in which white etching layer lies above shallow cracks formed without evidence of plastic flow. An embedded crack at 0.5. mm below the rail surface was modelled, revealing a thermal mechanism of crack opening. Stress intensity values for a range of contact temperatures were calculated. © 2013 Elsevier B.V.

  7. Studies On Optimization Of Protease Production Using Bacterial Isolate Clri Strain 5468 And Its Application In Dehairing And Hydrolysis Of Tannery Fleshings Solid Waste Management

    OpenAIRE

    Vimala Devi Seenivasagham; C. Rose

    2015-01-01

    The strain which produces protease was originally isolated characterized in Biotechnology laboratory at CLRI and was maintained. The microorganism was growned on several proteolytic media and the maximum activity was observed. The characterization of enzyme was analysed for different pH temperature size of inoculum inhibitors age of the culture. Then the enzyme was observed for the unhairing of skin and the disadvantage in chemical treatment was studied. The conformation of unhairing was stud...

  8. Journal of Mormon History Vol. 38, No. 3, Summer 2012

    OpenAIRE

    2012-01-01

    CONTENTS LETTER --Fitz John Porter’s Letter William P. MacKinnon, vii ARTICLES --Mormonism in Cultural Context: Guest Editors’ Introduction J. Spencer Fluhman, Steven C. Harper, and Jed Woodworth, 1 --A Charmed Life Claudia L. Bushman, 5 --The Hermeneutics of Generosity: A Critical Approach to the Scholarship of Richard Bushman Stuart Parker, 12 --To Mend a Fractured Reality: Joseph Smith’s Project Philip L. Barlow, 28 --The Language of Heaven: Prolegomenon to the Stud...

  9. Learners? perspective: where and when pre-residency trainees learn more to achieve their core clinical competencies

    OpenAIRE

    Ahn, Eusang; Ahn, Ducksun; Lee, Young-Mee

    2016-01-01

    Purpose While it is known that effective clinical education requires active involvement of its participants, regular feedback, communication skills and interprofessional training, limited studies have been conducted in Korea that demonstrate how pre-residency trainees acquire their core clinical skills. This is a cross-sectional study of interns and students across a third-tier university hospital in Korea to examine where and when they acquire core clinical skills. Methods A total of 74 stud...

  10. Prelithification and synlithification tectonic foliation development in a clastic sedimentary sequence

    OpenAIRE

    Meere, Patrick A.; Mulchrone, Kieran F.; McCarthy, Dave J.; Timmerman, Martin J.; Dewey, John F.

    2016-01-01

    The current view regarding the timing of regionally developed penetrative tectonic fabrics in sedimentary rocks is that their development postdates lithification of those rocks. In this case, fabric development is achieved by a number of deformation mechanisms, including grain rigid body rotation, crystal-plastic deformation, and pressure solution. The latter is believed to be the primary mechanism responsible for the domainal structure of cleavage in low-grade metamorphic rocks. In this stud...

  11. Developments in Promotion Strategies Review on Psychological Streams of Consumers

    OpenAIRE

    Alam Kazmi, Syed Hasnain

    2015-01-01

    Theoretical decision-making models and theories in context to promotions at both brand and product level have focused and studied on several thought-provoking research explorations with three steams of research in promotion strategies. Researchers have studied the impact of price promotion strategies on consumers in several distant behaviors. Developmental theoretical models provide managers and researchers insights with deep understandings for many vital concerns like, why need in-depth stud...

  12. Development of Mobile Educational Services Application to Improve Educational Outcomes using Android Technology

    OpenAIRE

    Hosam Farouk El-Sofany; Samir Abou El-Seoud; Hassan M. Alwadani; Amer E. Alwadani

    2014-01-01

    Mobile devices have become instruments that allow new ways of interacting with institutional services. This paper describes the development of the Mobile Educational Services Application (MES app) for the Android platform. This app allows access to mediated and self-access services, as well as databases, announcements, registration, events, book consultations, schedules, etc. The project provides Mobile and Web-based application tools (apps) that allow online access for different users - stud...

  13. Power Grid Recovery after Natural Hazard Impact

    OpenAIRE

    KARAGIANNIS GEORGIOS; CHONDROGIANNIS STAMATIOS; KRAUSMANN ELISABETH; TURKSEZER ZEHRA IREM

    2017-01-01

    Natural hazards can affect the electricity supply and result in power outages which can trigger accidents, bring economic activity to a halt and hinder emergency response until electricity supply is restored to critical services. This study analyzes the impact of earthquakes, space weather and floods on the power grid recovery time. For this purpose, forensic analysis of the performance of the power grid during 16 earthquakes, 15 space weather events and 20 floods was carried out. The stud...

  14. The determinants of part-time work in Metropolitan Lima

    OpenAIRE

    Manuel Enrique Saavedra Martinez

    2011-01-01

    The following paper examines the part-time work in Metropolitan Lima in 2008. The overall objective is to identify the determinants of the incidence of part-time work in Lima. We worked with one Probit econometric model, measured by the National Survey of Households (NSH), which explores the job characteristics of people. This will determine the presence of part-time workers in the areas of trade, health, education and communication; also realized that this group has completed university stud...

  15. The determinants of part-time work in Metropolitan Lima

    OpenAIRE

    Saavedra Martinez, Manuel Enrique

    2012-01-01

    The following paper examines the part-time work in Metropolitan Lima in 2008. The overall objective is to identify the determinants of the incidence of part-time work in Lima. We worked with one Probit econometric model, measured by the National Survey of Households (NSH), which explores the job characteristics of people. This will determine the presence of part-time workers in the areas of trade, health, education and communication; also realized that this group has completed university stud...

  16. European Foundation Designs for Seasonally Frozen Ground

    Science.gov (United States)

    1992-03-01

    Plasterboard and Aluminum Foil As expected, the floor temperature decreases con- (120 mm) (13 mm) siderably towards an external wall. In one case, for...insulation (placed as in Fig. 55) was also stud- Brick Wall Plasterboard and Aluminum Foil ied and found to be negligible in causing a rise (120 mm) (13 mm) in...often pay to insulate Brick Wall Plasterboard and Aluminum Foil better. To avoid problems with low floor tern-(120 mm) (13 ram) (perature in colder

  17. DOE ZERH Case Study: Charles Thomas Homes, Anna Model, Omaha, NE

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 48 without PV, with 2x6 24” on center walls with R-23 blown fiberglass, ocsf at rim joists, basement with plus 2x4 stud walls with R-23 blown fiberglass, with R-20 around slab, R-38 under slab; a vented attic with R-100 blown cellulose; 95% AFUE furnace, 14 SEER AC, ERV; heat pump water heater.

  18. FIRST Things First: A Practice-Academic Collaboration to Develop and Deliver a Competency-Based Series of Applied Epidemiology Trainings

    OpenAIRE

    Reid, W. Michael; Landis, Danielle C.; Kintz, Jylmarie; Ruzycki, Sandra; Brown, Lisa M.; Martini, Leila

    2008-01-01

    The Florida Center for Public Health Preparedness in the University of South Florida College of Public Health and the Florida Department of Health (FDOH) collaborated to design, develop, and deliver two competency-based epidemiology training programs aimed at increasing the epidemiologic preparedness and response capability of the FDOH workforce. They were also designed to meet the requirements of the National Incident Management System and recommendations or needs identified in national stud...

  19. The Corrosion Control of Fastening Systems for Aircraft Carrier Steam Catapults

    Science.gov (United States)

    1976-03-31

    of an upper bushing made of 304 stainless steel, AISI 4340 alloy steel or manganese bronze, and a lower blind tapped bushing made of 1018 steel. The...out resorting to drilling. Repair of the hole requires welding , drilling, and tapping. D. For the 700’F application, uncoated studs and nuts are used...with insulation which becomes soaked with corrodents from deck leakage. Corrosion attack is so intense, the fasteners seem to become " welded " into

  20. Meta-Analysis of Genome-Wide Association Studies in > 80 000 Subjects Identifies Multiple Loci for C-Reactive Protein Levels

    OpenAIRE

    Dehghan, Abbas; Dupuis, Josee; Barbalic, Maja; Bis, Joshua C.; Eiriksdottir, Gudny; Lu, Chen; Pellikka, Niina; Wallaschofski, Henri; Kettunen, Johannes; Henneman, Peter; Baumert, Jens; Strachan, David P.; Fuchsberger, Christian; Vitart, Veronique; Wilson, James F.

    2011-01-01

    Background-C-reactive protein (CRP) is a heritable marker of chronic inflammation that is strongly associated with cardiovascular disease. We sought to identify genetic variants that are associated with CRP levels.Methods and Results-We performed a genome-wide association analysis of CRP in 66 185 participants from 15 population-based studies. We sought replication for the genome-wide significant and suggestive loci in a replication panel comprising 16 540 individuals from 10 independent stud...

  1. Investigation of Energy Transfer Dynamics Between Target Contrast Agents and Prostate Cancer Cells Using Ultrafast Spectroscopy

    Science.gov (United States)

    2012-05-01

    Guava Technologies). Three independent experiments, with duplicate samples per experiment, were performed for each cell line. As shown in Fig...solution for ~15 minutes, and then put into sodium phosphate buffer to wash off the unbound Cytate [13]. Finally, they were covered by a large piece of...as ox non-invasive SE: To stud namic metab DS: 4T1 and supplemented n; 3) DME wit Guava Tech ight modificat l-bore Bruker ells were the ed and

  2. Reproductive profile of captive Sumateran tiger (Panthera tigris sumatrae)

    OpenAIRE

    GONO SEMIADI; R. TAUFIQ PURNA NUGRAHA

    2006-01-01

    The Sumatran tiger (Panthera tigris sumatrae) is one of several endemic Indonesian wild cat groups which population is critically endangered. A program to increase the population size had been conducted in captivity, especially in the zoo. In order to monitor the captive population and for the means of management in captivity, a logbook data recording system had been developed for individual animals. A compilation data from the Tiger International Stud Book from 1942 to 2000 was analyzed. The...

  3. Cell-free translation of murine coronavirus RNA.

    OpenAIRE

    Leibowitz, J L; Weiss, S R; Paavola, E; Bond, C W

    1982-01-01

    The coding assignments of the intracellular murine hepatitis virus-specific subgenomic RNA species and murine hepatitis virion RNA have been investigated by cell-free translation. The six murine hepatitis virus-specific subgenomic RNAs were partially purified by agarose gel electrophoresis and translated in an mRNA-dependent rabbit reticulocyte lysate, and the cell-free translation products were characterized by gel electrophoresis, immunoprecipitation, and tryptic peptide mapping. These stud...

  4. Estudo da diversidade agrícola de raízes e tubérculos em assentamentos rurais no interior paulista

    OpenAIRE

    Oliveira, Ariane Saldanha de [UNESP

    2014-01-01

    Species maintenance and agricultural variety are fundamental to guarantee food security. Some plants, such as roots and tubers, are especially important for feeding populations that practice agriculture partially oriented to subsistence, like those that live in occupied rural settlements. These rural settlements are characterized as potential areas for conservation of biodiversity, considering a context of rural depopulation, urbanization and mechanization of agriculture. Therefore, this stud...

  5. Review and Future Direction in the Study of Incidental Second Language Vocabulary Acquisition Through Reading

    OpenAIRE

    鬼田, 崇作

    2010-01-01

    The purpose of this paper is to review studies in incidental second language (L2) vocabulary acquisition through reading and to show the future directions in this field. First, the paper reviews previous empirical studies within the framework of the quality and quantity of vocabulary processing in L2 vocabulary acquisition which thus far has been widely used mainly in the field of incidental L2 vocabulary acquisition research. This paper also focuses on the methodologies used in previous stud...

  6. 震災時の大学からの情報発信 : 留学生をはじめとする学生への公助として

    OpenAIRE

    林, 幸子; 藤野, 遥; 李, 聡; 三島, 美佐子

    2017-01-01

    The 2016 Kumamoto Earthquake in April has strongly impressed us the fact that a powerful earthquake could occur in the area where earthquakes were thought to be few. The fact also indicates the necessity and importance of the preparation for strong earthquake and subsequent damages. Student of Kansei Communication PTLIII focused on the response and information provision related to the disaster by universities at the 2016 Kumamoto Earthquake. The care and information provision for foreign stud...

  7. Nuclear reactor control room construction

    Science.gov (United States)

    Lamuro, Robert C.; Orr, Richard

    1993-01-01

    A control room 10 for a nuclear plant is disclosed. In the control room, objects 12, 20, 22, 26, 30 are no less than four inches from walls 10.2. A ceiling 32 contains cooling fins 35 that extend downwards toward the floor from metal plates 34. A concrete slab 33 is poured over the plates. Studs 36 are welded to the plates and are encased in the concrete.

  8. Permeation properties of Concrete Added with a Petrochemical Industry Waste

    OpenAIRE

    Janneth Torres-Agredo; Nancy Torres-Castellanos; Ruby Mejía-de-Gutiérrez

    2017-01-01

    The aim of this study is to evaluate the permeation properties of concrete added with a residue of a petrochemical industry located in Colombia, called catalytic cracking catalyst residue (FCC). Concrete samples with 10, 20 and 30 % of FCC incorporated as cement replacement were evaluated. As reference materials, concrete without addition and concrete added with 20 % of metakaolin (MK) were used. MK is a high performance pozzolan of chemical composition similar to the FCC. The properties stud...

  9. Sexual dysfunction among married couples living in Kumasi metropolis, Ghana

    OpenAIRE

    Woode Eric; Gyasi-Sarpong Christian K; Owiredu William KBA; Amidu Nafiu; Quaye Lawrence

    2011-01-01

    Abstract Background Sexuality and its manifestation constitute some of the most complex of human behaviour and its disorders are encountered in community. Sexual dysfunction is more prevalent in women than in men. While studies examining sexual dysfunction among males and females in Ghana exist, there are no studies relating sexual problems in males and females as dyadic units. This study therefore investigated the prevalence and type of sexual disorders among married couples. Method The stud...

  10. Airloads Correlation of the UH-60A Rotor inside the 40- by 80-Foot Wind Tunnel

    OpenAIRE

    I-Chung Chang; Thomas R. Norman; Ethan A. Romander

    2014-01-01

    The presented research validates the capability of a loosely coupled computational fluid dynamics (CFD) and comprehensive rotorcraft analysis (CRA) code to calculate the flowfield around a rotor and test stand mounted inside a wind tunnel. The CFD/CRA predictions for the Full-Scale UH-60A Airloads Rotor inside the National Full-Scale Aerodynamics Complex (NFAC) 40- by 80-Foot Wind Tunnel at NASA Ames Research Center are compared with the latest measured airloads and performance data. The stud...

  11. 科学技術問題の解決を目指した協調学習のデザイン研究 : 電力問題を取り上げた単元における「問題を定義すること」の学習

    OpenAIRE

    坂本, 美紀; 山本, 智一; 山口, 悦司; 稲垣, 成哲; 大島, 純; 大島, 律子; 中山, 迅; 竹中, 真希子; 村山, 功

    2010-01-01

    Socioscientific issues are plagued by a number of problems wherein the goals are unclear or no specific solution to an issue can be found. These problems are called "ill-defined problems", and the process of identifying or defining such problems is especially important when attempting to find a solution. The purpose of this study was to design a learning unit based on the design principles that activated interactions among learners, and to evaluate whether the learning unit could improve stud...

  12. Trichomonas

    African Journals Online (AJOL)

    1983-04-09

    Apr 9, 1983 ... trime ters of pregnanc\\' im'ited preterm deli\\'en',1 but Mason and Bro\\\\'n; found no association bem'een th~ detection of. T. i·tlgina/is infection at the booking \\'isit and the subsequent birth \\\\'eight of the infant. The objecti\\'es of this stud\\' were to determine \\\\'hether or not persistent T. 'mginalis i'nfecrions.

  13. What place has grammar in the English curriculum? An analysis of ninety years’ policy debate: 1921 to 2011.

    OpenAIRE

    Norman, Phillip Richard

    2012-01-01

    Since 1921 England’s governments have commissioned enquiries into English and literacy teaching, leading towards published recommendations and requirements for English grammar teaching. Governments’ officially sanctioned publications represent their policy aspirations for English and literacy. Research studies have explored the subsequent challenge for schools and teachers who must integrate grammar into a subject whose wider philosophies may conflict with an explicit grammar element. My stud...

  14. Structural and catalytic properties of a novel vanadium containing ...

    Indian Academy of Sciences (India)

    Alg. Chem. 414 109. 15. Jhung S, Uh Y S and Chon H 1990 Appl. Catal. 62 61. 16. Kornatowski J, Wichterlova B, Roswadowski M and. Baur W H 1994 Stud. Surf. Sci. Catal. 84A 117. 17. Montes C, Davis M E, Murray B and Narayana M 1990. J. Phys. Chem. 94 6431. 18. Concepcion J M, Lopez Nieto A, Mifsud J and Perez-.

  15. The development and initial validation of a new measure of lay definitions of health: the wellness beliefs scale

    OpenAIRE

    Bishop, Felicity; Yardley, Lucy

    2010-01-01

    The objective was to develop a psychometrically sound questionnaire measure of lay people's beliefs about the importance of different signs of wellness (the Wellness Beliefs Scale, WBS). Questionnaire items were derived from qualitative literature. Nine hundred and forty two people (recruited from the community and patient-support groups) participated in two cross-sectional studies using paper and web-based questionnaires. Study 1 participants completed the initial version of the WBS and Stud...

  16. ANALISIS SUPORTER BOLA DALAM PERSPEKTIF SOSIOLOGI (STUDIKASUS PENDUKUNG KLUB ARSENAL INDONESIAN SUPORTER ???AIS??? REGIONAL MAKASSAR)

    OpenAIRE

    GAFFAR, AKBAR

    2008-01-01

    2013 AKBAR GAFFAR, E411 08 267.Thesis title ???Football Supporters Analysis In Sociology Perspective ( Case Study Of Arsenal Indonesian Supporter ???AIS??? Fans Club In Makassar Region ), Mentored by H. M Darwis as 1st mentor and Suparman Abdullah as 2nd mentor. Many spectors who commit acts of violence that harms others is one of the many phenomena that occur at this time in the world of football. This study uses a qualitative descriptive analytic approach. The results of this stud...

  17. Національні школи у зарубіжній суспільній географії ХХ століття

    OpenAIRE

    Шевчук, Сергій

    2016-01-01

    In the period between two world wars there was a final design of national schools in overseas human geography: German, American, British, French and Soviet. German human geography during the late nineteenth – early twentieth century most experienced revolutionary changes in its methodology, which was connected with the socio-political life of the country at that time. In the 1960s mathematical and statistical methods of social phenomena became particularly popular in the human-geographic stud...

  18. Some Similarity Reduction Solutions to Two-Dimensional Incompressible Navier-Stokes Equation

    Science.gov (United States)

    Jiao, Xiao-Yu

    2009-09-01

    We investigate the symmetry reduction for the two-dimensional incompressible Navier-Stokes equation in conventional stream function form through Lie symmetry method and construct some similarity reduction solutions. Two special cases in [D.K. Ludlow, P.A. Clarkson, and A.P. Bassom, Stud. Appl. Math. 103 (1999) 183] and a theorem in [S.Y. Lou, M. Jia, X.Y. Tang, and F. Huang, Phys. Rev. E 75 (2007) 056318] are retrieved.

  19. Assessment of Dietary Intake Patterns and Their Correlates among University Students in Lebanon

    OpenAIRE

    Salameh, Pascale; Jomaa, Lamis; Issa, Carine; Farhat, Ghada; Salamé, Joseph; Zeidan, Nina; Baldi, Isabelle

    2014-01-01

    Introduction: Unhealthy dietary habits are major risk factors for chronic diseases, particularly if adopted during early years of adulthood. Limited studies have explored the food consumption patterns among young adults in Lebanon. Our study aimed to examine common dietary patterns and their correlates among a large sample of university student population in Lebanon, focusing on correlation with gender and body mass index (BMI). Methods: A cross-sectional study was carried out on 3384 stud...

  20. Insulin Signaling, Resistance, and the Metabolic Syndrome: Insights from Mouse Models to Disease Mechanisms

    OpenAIRE

    Guo, Shaodong

    2014-01-01

    Insulin resistance is a major underlying mechanism for the “metabolic syndrome”, which is also known as insulin resistance syndrome. Metabolic syndrome is increasing at an alarming rate, becoming a major public and clinical problem worldwide. Metabolic syndrome is represented by a group of interrelated disorders, including obesity, hyperglycemia, hyperlipidemia, and hypertension. It is also a significant risk factor for cardiovascular disease and increased morbidity and mortality. Animal stud...

  1. A multi-locus inference of the evolutionary diversification of extant flamingos (Phoenicopteridae)

    OpenAIRE

    Torres, Chris R; Ogawa, Lisa M; Gillingham, Mark AF; Ferrari, Brittney; van Tuinen, Marcel

    2014-01-01

    Background Modern flamingos (Phoenicopteridae) occupy a highly specialized ecology unique among birds and represent a potentially powerful model system for informing the mechanisms by which a lineage of birds adapts and radiates. However, despite a rich fossil record and well-studied feeding morphology, molecular investigations of the evolutionary progression among modern flamingos have been limited. Here, using three mitochondrial (mtDNA) markers, we present the first DNA sequence-based stud...

  2. Biomarkers of Host Response Predict Primary End-Point Radiological Pneumonia in Tanzanian Children with Clinical Pneumonia: A Prospective Cohort Study.

    OpenAIRE

    Erdman, L.K.; D'Acremont, V.; Hayford, K.; Rajwans, N.; Kilowoko, M.; Kyungu, E.; Hongoa, P.; Alamo, L.; Streiner, D.L.; Genton, B.; Kain, K.C.

    2015-01-01

    BACKGROUND: Diagnosing pediatric pneumonia is challenging in low-resource settings. The World Health Organization (WHO) has defined primary end-point radiological pneumonia for use in epidemiological and vaccine studies. However, radiography requires expertise and is often inaccessible. We hypothesized that plasma biomarkers of inflammation and endothelial activation may be useful surrogates for end-point pneumonia, and may provide insight into its biological significance. METHODS: We stud...

  3. Electrical enhancement of biocide efficacy against Pseudomonas aeruginosa biofilms.

    OpenAIRE

    Blenkinsopp, S A; Khoury, A E; Costerton, J W

    1992-01-01

    When applied within a low-strength electric field (+/- 12 V/cm) with a low current density (+/- 2.1 mA/cm2), several industrial biocides exhibited enhanced killing action against Pseudomonas aeruginosa biofilms grown on stainless steel studs. Biocide concentrations lower than those necessary to kill planktonic cells of P. aeruginosa (1, 5, and 10 ppm of the active ingredients of kathon, glutaraldehyde, and quaternary ammonium compound, respectively) were bactericidal within 24 h when applied ...

  4. A methodology for pre-post intervention studies : an application for a nutritional case study

    OpenAIRE

    Sevilla-Villanueva, Beatriz

    2016-01-01

    Nowadays, it is widely accepted that many of modern lifestyle habits such as diet and exercise, together with genetics, play an important role in the development of many diseases such as cardiovascular disease, diabetes, cancer, obesity and so on. Thanks to the great advances in genetics in recent years, nutritional genomic science has emerged to personalize an individual's diet based on the particular needs of each person, aiming to maintain health and prevent disease. In order to stud...

  5. Transport phenomena in quantum wells and wires in presence of disorder and interactions

    OpenAIRE

    Vettchinkina, Valeria

    2012-01-01

    Present-day electronics employ circuits of smaller and smaller dimensions, and today the length scales are so small that the laws of physics which rule micro-cosmos, quantum mechanics, become directly important. This thesis reports on theoretical work on electron transport in different nanostructures. We have studied semiconductor quantum wells, layered materials where each layer can be only a few atomic layers thick, and transport in thin atomic wires. The layered materials have been stud...

  6. Reserve Component Training for Operating and Maintaining the M48A5 Tank

    Science.gov (United States)

    1977-08-01

    assembly. . Removed retainer clip and charger assembly from projecting stud. 1*. INSPECT M219 MACHIKEGUK (AB201) . Checked all metal ...Reported any daina^e to ir.cunt to the vehicle coriander . . Adjusted the daylight and IR headrest for proper fit. . Opened ballistic...Readiness Test. c. Given an M48A5 tank with gun tube aimed at a suitable boresight target (but slightly out of allnement with respect to target), heavy

  7. Impact of CYP2C8*3 on paclitaxel clearance in ovarian cancer patients

    OpenAIRE

    Bergmann, Troels Korshøj; Vach, Werner; Gréen, Henrik; Karlsson, Mats; Friberg, Lena; Nielsen, Flemming; Pedersen, Rasmus Steen; Mirza, Mansoor Raza; Andersen, Charlotte Brasch; Brøsen, Kim

    2009-01-01

    BackgroundToxicity and therapeutic effects of paclitaxel vary greatly between patients and remain a clinically relevant problem with regard to the handling of dose delay/reduction or termination of treatment. We investigated the notion that single nucleotide polymorphisms (SNPs) in CYP2C8 could be partly responsible for this variation. Paclitaxel is mainly metabolized by CYP2C8; SNPs have been investigated in this context before but conclusions are still lacking. We present a prospective stud...

  8. THE EFFECT OF ORGANIZATIONAL CULTURE ON ORGANIZATIONAL COMMITMENT AND A RESEARCH

    OpenAIRE

    CENGİZ DEMİR; UMUT CAN ÖZTÜRK

    2013-01-01

    Organizational culture is the all values that shared by the whole of the organization. Organizational commitment is employees’ strength of bond for the organization which they work for. There should be shared values for mentioned about commitment. If those values are adopted by a large number of people and if they are strong, the level of commitment will increase. The main purpose of this study is to determine  the impact of organizational culture on commitment and the relationship. This stud...

  9. Change point analysis and assessment

    DEFF Research Database (Denmark)

    Müller, Sabine; Neergaard, Helle; Ulhøi, John Parm

    2011-01-01

    The aim of this article is to develop an analytical framework for studying processes such as continuous innovation and business development in high-tech SME clusters that transcends the traditional qualitative-quantitative divide. It integrates four existing and well-recognized approaches to stud...... to studying events, processes and change, mamely change-point analysis, event-history analysis, critical-incident technique and sequence analysis....

  10. North pole, South pole the quest to understand Earth's magnetism

    CERN Document Server

    Turner, Gillian

    2010-01-01

    Going all the way back to the Roman legend of a shepherd whose iron-studded boots stuck to the rocks, this book charts the history of the earth's magnetism, which intrigued and stumped scientists and ordinary people for centuries. Absorbing and accessible, it is a lively study of what exactly magnetic force is, what causes it, and what its place has been throughout scientific history, offering detailed insights into the inner workings of the planet and its magnetic shield.

  11. An analysis of Bitcoin OP_RETURN metadata

    OpenAIRE

    Bartoletti, Massimo; Pompianu, Livio

    2017-01-01

    The Bitcoin protocol allows to save arbitrary data on the blockchain through a special instruction of the scripting language, called OP_RETURN. A growing number of protocols exploit this feature to extend the range of applications of the Bitcoin blockchain beyond transfer of currency. A point of debate in the Bitcoin community is whether loading data through OP_RETURN can negatively affect the performance of the Bitcoin network with respect to its primary goal. This paper is an empirical stud...

  12. ‘Watch the Birdie': The Star Economy, Social Media and The Celebrity Group Selfie

    OpenAIRE

    Wright, Ellen

    2015-01-01

    This work will explore some of the broader implications of celebrity group selfies, through the example of Ellen DeGeneres’ star-studded group shot, taken during the 2014 Academy Awards ceremony, Joan Collins 2014 Prince’s Trust Award selfie, just days after, and Collins’ subsequent ‘view from the other side’ tweet; exploring notions of authenticity, performance, intimacy, self-promotion, public visibility, identification, imitation, vicarious consumption and audience participation. Engag...

  13. A critical review and meta-analysis of the association between overt hyperthyroidism and mortality

    DEFF Research Database (Denmark)

    Brandt, Frans; Green, Anders; Hegedüs, Laszlo

    2011-01-01

    Overt hyperthyroidism has been associated with cardiac arrhythmias, hypercoagulopathy, stroke, and pulmonary embolism, all of which may increase mortality. Some, but not all, studies show an increased mortality in patients with hyperthyroidism. This inconsistency may be due to differences in stud...... design, characteristics of participants, or confounders. In order to test whether hyperthyroidism influences mortality, we performed a critical review and statistical meta-analysis....

  14. Aeromonas infection from river and playa lake waters in West Texas and southeastern New Mexico

    OpenAIRE

    Robert C. Kimbrough; Richard E. Winn; Randall M. Jeter; William J. Warren; Jennifer R. Huddleston; John C. Zak

    2016-01-01

    Trauma occurring in direct contact with freshwater bodies may result in wounds contaminated with a variety of microorganisms. Bacteria belonging to the genus Aeromonas have been recovered from these types of infections. We report two cases of Aeromonas hydrophila infections occurring from freshwater-contaminated wounds. One of these infections was acquired from a river in southeastern New Mexico; the other was from an urban playa lake in West Texas. The latter case prompted an ecological stud...

  15. F.S. Northedge and English School of International Relations

    OpenAIRE

    Viktor V. Mironov

    2017-01-01

    This article is devoted to English historian F.S. Northedge (1918-1985) and his role in the development conception of international society and English School of International relations in 1960-1980. This school consists of small group of scientists and diplomats, who were well educated in elite British universities like Cambridge and Oxford. They were acquainted with each other personally. British Committee for the Theory of International Politics in 1960-1970 was the center for the stud...

  16. Implant failure and history of failed endodontic treatment: A retrospective case-control study

    OpenAIRE

    Chatzopoulos, Georgios S.; Wolff, Larry F.

    2017-01-01

    Background Residual bacterial biofilm and/or bacteria in planktonic form may be survived in the bone following an extraction of an infected tooth that was endodontically treated unsuccessfully Failed endodontic treatment may be associated with failure of implants to osseointegrate in the same sites. Therefore, the aim of this retrospective case-control study is to examine the risk of implant failure in previous failed endodontic sites. Material and Methods This retrospective case-control stud...

  17. Urinary congophilia in women with hypertensive disorders of pregnancy and preexisting proteinuria or hypertension

    OpenAIRE

    McCarthy, Fergus P; Adetoba, Adedamola; Gill, Carolyn; Bramham, Kate; Bertolaccini, Maria; Burton, Graham James; Girardi, Guillermina; Seed, Paul T; Poston, Lucilla; Chappell, Lucy C

    2016-01-01

    Background Congophilia indicates the presence of amyloid protein, which is an aggregate of misfolded proteins, that is implicated in the pathophysiologic condition of preeclampsia. Recently, urinary congophilia has been proposed as a test for the diagnosis and prediction of preeclampsia. Objectives The purpose of this study was to determine whether urine congophilia is present in a cohort of women with preeclampsia and in pregnant and nonpregnant women with renal disease. Stud...

  18. Methodology scuba diving on tinge

    OpenAIRE

    Vondrášek, David

    2011-01-01

    Title: Methodology of apnea diving Objectives: The main objective of this work is to develop materials that could serve as a learning support students in basic studies of apnea diving. A part of the history of diving equipment and diving physiology of flavor and also methodologies apnea diving. Methods: Study of available sources. Literature available sources. Development of educational material using the material used and its own experience. Results: The result is a learning support for stud...

  19. Comparison of Bioactive Compound Content in Egg Yolk Oil Extracted from Eggs Obtained from Different Laying Hen Housing Systems

    OpenAIRE

    Aleksandrs Kovalcuks

    2015-01-01

    Egg yolk oil is a natural source of bioactive compounds such as unsaturated fatty acids, oil soluble vitamins, pigments and others. Bioactive compound content in egg yolk oil depends from its content in eggs, from which oil was extracted. Many studies show that bioactive compound content in egg is correlated to the content of these compounds in hen feed, but there is also an opinion that hen housing systems also have influence on egg chemical content. The aim of this stud...

  20. Physical education classes for junior high school students with disabilities : A survey in the Kinki Region

    OpenAIRE

    下村, 雅昭; Shimomura, Masaaki; 金山, 千広; Kanayama, Chihiro; 山崎, 昌廣; Yamasaki, Masahiro

    2008-01-01

    The purpose of this study was to investigate the status of physical education classes for junior high school students with disabilities in the Kinki Region of Japan. Valid responses were received from 80 of 200 schools targeted for the survey (collection ratio:40%). It was found that in nearly all schools physical education classes for students with disabilities were conducted while maintaining interraction with regular classes. Physical education teachers felt the significance of having stud...

  1. An innovative approach study “Health students example”

    OpenAIRE

    Akyurt Nuran

    2017-01-01

    Globalization; A process of international integration arising from the exchange of products, ideas, cultures and worldviews. Globalization is an economic as well as political, technological and cultural process. As in other areas, technological developments have brought innovations into the training of health care workers, as well as access to information and the use of this information. These developments necessitated new orientations in the education systems of health students. In this stud...

  2. Chagas Disease and Breast-feeding

    OpenAIRE

    Norman, Francesca F.; L?pez-V?lez, Rogelio

    2013-01-01

    Chagas disease (infection by the protozoan Trypanosoma cruzi) is a major parasitic disease of the Americas and one of the main neglected tropical diseases. Although various routes of transmission sre recognized, the risk for transmission of the infection through breast-feeding has not clearly been established. We reviewed the literature on transmission of T. cruzi through breast-feeding to provide breast-feeding mothers with Chagas disease with medical guidance. Although data from animal stud...

  3. Nuclear reactor control room construction

    International Nuclear Information System (INIS)

    Lamuro, R.C.; Orr, R.

    1993-01-01

    A control room for a nuclear plant is disclosed. In the control room, objects labelled 12, 20, 22, 26, 30 in the drawing are no less than four inches from walls labelled 10.2. A ceiling contains cooling fins that extend downwards toward the floor from metal plates. A concrete slab is poured over the plates. Studs are welded to the plates and are encased in the concrete. 6 figures

  4. Air Force Strategic Planning: Past, Present, and Future

    Science.gov (United States)

    2017-01-01

    usually citing Fogleman’s part in the creation of Global Engagement and the Long-Range Plan.17 While true, Air Force history is also studded with...a relatively young service, the U.S. Air Force has a remarkably rich intellectual history . Even before the Air Force’s official formation, the...in strategic plans and the history of the Air Force. Comments are welcome and should be sent to the author, Raphael S. Cohen, or to the project

  5. O conhecimento sobre leishmaniose visceral: Suficiente para controle e prevenção?

    OpenAIRE

    Paulan, Silvana Cassia [UNESP; Silva, Diogo Tiago [UNESP; Lins, Aline Gouveia de Souza [UNESP; Lima, Flavia Luna; Tenório, Michely Silva [UNESP; Tasca, Karen Ingrid [UNESP; Panosso, Alan Rodrigo [UNESP; Starke-Buzetti, Wilma Aparecida [UNESP

    2016-01-01

    Visceral leishmaniasis (VL), a zoonosis with cosmopolitan distribution and responsible for millions of cases in humans every year, is due to protozoans of the genus Leishmania as the etiological agent, with transmission occurring via the bites of sandflies (phlebotomines). Changes in the environment, such as deforestation and the expansion of urban areas to the edges of woods, amongst others, have led to urbanization of the parasite and increased risk of human infection. The aims of this stud...

  6. INTERRUPCIÓN DE GESTACIÓN EN PERRAS UTILIZANDO DEXAMETASONA ORAL

    OpenAIRE

    Sánchez R., Alfonso; Saéz P., Lorena

    2012-01-01

    The purpose of this study was to describe reproductive and clinical parameters as aresult of dexamethasone administration in order to terminate unwanted pregnancy inbitches. Five pregnant adult bitches, clinically healthy, were used. Animals were orallyadministered 0.2 mg/kg of dexamethasone every 12 hours during 6 days and thereafter,the dose was gradually reduced till 0.02 mg/kg on day 10. Ultrasound scan, bodytemperature, plasma progesterone, and behaviour were recorded throughout the stud...

  7. Mahasiswa Pengguna Media Sosial (Studi Tentang Fungsi Media Sosial Bagi Mahasiswa Fisip Ur)

    OpenAIRE

    Yusuf, Yusmar; Melati, Sari

    2015-01-01

    This study entitled University Students as Social Media Users (A Study on The Social Media Function for Students of Social and Political Sciences Faculty, Riau University). This study interested to conduct this topic because of the phenomenon of social media usage arround the writer. Afterwards, this study wanted to find out what the most popular social media in Faculty of Social and Political Sciences, Riau University. It related to the reason in choosing the social media for university stud...

  8. Relations between Social Support, PTSD Symptoms, and Substance Use in Veterans

    OpenAIRE

    Gros, Daniel F.; Flanagan, Julianne C.; Korte, Kristina J.; Mills, Adam C.; Brady, Kathleen T.; Back, Sudie E.

    2016-01-01

    Social support plays a significant role in the development, maintenance, and treatment of posttraumatic stress disorder (PTSD). However, there has been little investigation of social support with PTSD and its frequent comorbid conditions and related symptoms. Substance use disorders (SUD) are one set of conditions that have yet to be investigated in combination with PTSD and social support. As compared to civilians, veterans are at increased risk for developing both PTSD and SUD. In this stud...

  9. The measurement of perceived emotional intelligence for Spanish adolescents with Social Anxiety Disorder Symptoms: La medición de la inteligencia emocional en adolescentes españoles con trastorno de ansiedad

    OpenAIRE

    Díaz-Castela, M.; Hale III, W.W.; Muela, J.A.; Espinosa-Fernandez, L.; Klimstra, T.A.; Garcia-Lopez, L.

    2013-01-01

    Emotional Intelligence (EI) is a concept that has been discussed for decades in Psychology but has received very little empirical study until recently. And with this growing interest, its accompanying concept, Perceived Emotional Intelligence (PEI), has also received more attention. It is due to this growing interest in PEI that this paper explores two important aspects of the PEI: the measurement of PEI and the implications PEI may have for adolescent anxiety disorder symptomology. This stud...

  10. The measurement of perceived Emotional Intelligence for Spanish adolescents with social anxiety disorder symptoms

    OpenAIRE

    Mª del Mar Diaz-Castela; William W. Hale III; Jose A. Muela; Lourdes Espinosa-Fernández; Theo Klimstra; Luis J. Garcia-Lopez

    2013-01-01

    Emotional Intelligence (EI) is a concept that has been discussed for decades in Psychology but has received very little empirical study until recently. And with this growing interest, its accompanying concept, Perceived Emotional Intelligence (PEI), has also received more attention. It is due to this growing interest in PEI that this paper explores two important aspects of the PEI: the measurement of PEI and the implications PEI may have for adolescent anxiety disorder symptomology. This stud...

  11. Model Makroekonomi Tahun 2000 - Tahun 2010

    OpenAIRE

    Satrianto, Alpon; Amar, Syamsul; Aimon, Hasdi

    2012-01-01

    ABSRACT This study aims to analyze and find out (1) the influence of consumption, investment, government spending, exports and imports to GDP in Indonesia, (2) the influence of disposable income and deposit rates on consumption in Indonesia, (3) the influence of interest rates on investment, GDP , and the rate of investment in Indonesia, (4) the influence of exchange rate and U.S. GDP to exports in Indonesia, and (5) the influence of exchange rate and GDP to imports in Indonesia. This stud...

  12. Corporate Hegemony in Japanese Collaborative Management:A Case Study of Corporate Misconduct in Japan

    OpenAIRE

    清宮 徹; Toru KIYOMIYA

    2011-01-01

    Japanese organizations have traditionally had strong relationships with their employees, which are recognized as a unique quality of Japanese organizational identities. In this article, I focus on corporate misconduct as related to organizational identity and corporate hegemony in Japanese collaborative management. An analysis of the cover-up scandal by the Japanese organization the Mitsubishi Motors Corporation (MMC) is presented to study this issue. Several important findings from this stud...

  13. Teachers as School-Based Mentors for At-Risk Students: A Qualitative Study

    OpenAIRE

    Simões, Francisco; Alarcão, Madalena

    2013-01-01

    Background: Over the past decade, administrators have implemented school-based mentoring (SBM) programs in schools across several western countries. However, few studies have compared the views of mentors and parents regarding the factors that determine SBM success. Objectives: The purpose of this work is to explore the factors that may facilitate or undermine the completion of SBM goals, according to the perspectives of both mentors and parents. Methods: We conducted a qualitative stud...

  14. DOE Zero Energy Ready Home Case Study: Palo Duro Homes, Albuquerque, New Mexico

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2013-09-01

    Palo Duro uses advanced framing techniques like 2x6 24-inch on-center framing, open headers above windows on non-load-bearing walls, 2-stud corners, ladder blocking where walls intersect, and single top and bottom plates. These techniques reduce the amount of lumber in the wall, allowing more room for insulation and reducing costs and installation time. The builder garnered a 2013 Housing Innovation Award in the production builder category.

  15. Construction Guide to Next-Generation High-Performance Walls in Climate Zones 3-5 - Part 1: 2x6 Walls

    Energy Technology Data Exchange (ETDEWEB)

    Kochkin, V. [Home Innovation Research Labs, Upper Marlboro, MD (United States); Wiehagen, J. [Home Innovation Research Labs, Upper Marlboro, MD (United States)

    2017-08-31

    Part 1 of this Construction Guide to High-Performance Walls in Climate Zones 3-5 provides time-proven, practical, and cost-effective strategies for constructing durable, energy-efficient walls. It addresses walls constructed with 2x6 wood frame studs, wood structural panel (WSP) exterior sheathing, and a cladding system installed over WSP sheathing in low-rise residential buildings up to three stories high.

  16. Performance of Broiler Marketing in Umuahia Area of Abia State, Nigeria

    OpenAIRE

    Obasi, I. O; Okafor, I. J

    2011-01-01

    This study examined the performance of broiler marketing in Abia State of Nigeria.The specific objectives of the study were to examine the performance of broiler marketing in terms of the marketing cost and returns, marketing margin and marketing efficiency, as well as identify factors affecting the income of broiler marketers in the study area. Primary and secondary data were used for this stud. Forty- five respondents from each category; producer-marketers and sole markers were selected bot...

  17. The Headwaters District: A History of the Pittsburgh District, U.S. Army Corps of Engineers

    Science.gov (United States)

    1978-01-01

    with extensive exploration and Indian warfare experience. Continental regulars garrisoned Fort Pitt and built Fort McIn- tosh in 1778 at the mouth...McIn- tosh furnished some protection, and General Har- mar built Fort Steuben at the present site of Steubenville, Ohio, in 1786 as additional...oughiogheny flood and rushing down the rock - studded stream and the Monongahela and Ohio rivers to found Marietta, Ohio. President Washington relied on his

  18. Professional learning: teachers’ narratives of experience. It is what you do and the way that you do it…

    OpenAIRE

    Chappell, Anne

    2014-01-01

    This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University London. Professional learning, commonly referred to in policy and practice as continuing professional development, is presented to teachers as both a requirement and an entitlement in current education policy (Gewirtz, 2002; Ball, 2003). This work explores the ways in which professional learning is experienced by three teachers, and the meanings they attribute to those experiences. The stud...

  19. Traumatic Peripheral Neuropraxias in Neonates: A Case Series

    OpenAIRE

    Malik, Sushma; Bhandekar, Heena Sudhir; Korday, Charusheela Sujit

    2014-01-01

    Traumatic peripheral nerve palsies in the newborn are uncommon but are a cause of severe anxiety in parents. Erb’s palsy, brachial plexus, radial nerve and facial nerve are the common nerves affected. Perinatal injuries are the most frequent cause of traumatic peripheral neuropraxias / nerve palsies. Usually these neuropraxias are self-limited with good recovery with conservative management in majority of cases.Ten neonates with peripheral neuropraxias were included in this retrospective stud...

  20. Scepticism and Trust: Two Counterpoint Essentials in Science Education for Complex Socio-Scientific Issues

    Science.gov (United States)

    Fensham, Peter J.

    2014-01-01

    In this response to Tom G. K. Bryce and Stephen P. Day's ("Cult Stud Sci Educ." doi:10.1007/s11422-013-9500-0, 2013) original article, I share with them their interest in the teaching of climate change in school science, but I widen it to include other contemporary complex socio-scientific issues that also need to be discussed. I…