2,281 research outputs found

    Photon-Photon and Electron-Photon Colliders with Energies Below a TeV

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    We investigate the potential for detecting and studying Higgs bosons in γγ\gamma\gamma and eγe\gamma collisions at future linear colliders with energies below a TeV. Our study incorporates realistic γγ\gamma\gamma spectra based on available laser technology, and NLC and CLIC acceleration techniques. Results include detector simulations. We study the cases of: a) a SM-like Higgs boson based on a devoted low energy machine with see200\sqrt{s_{ee}}\le 200 GeV; b) the heavy MSSM Higgs bosons; and c) charged Higgs bosons in eγe\gamma collisions.Comment: 29 pages, 13 figures, contributed to Snowmass 200

    Isolation and Characterization of Heterotrophic Bacteria From Residential Area and Low Salinity Seawater in Purnama Village Dumai Riau Province

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    Heterotrophs is a bacteria that use organic carbon and inorganic nitrogen as a food source. The research was conducted from December 2016 to January 2017. The aim at this study was to isolate, determine the ability of bacteria isolates as an antibacterial to pathogenic bacteria and determine the characteristics of heterotrophic bacteria isolated from residential area and low salinity seawater based on PCR method technique 16S rDNA sequences. Isolation and identification morphology, biochemical test and antibacterial tests were analyzed in Marine Microbiology Laboratorium of Riau University. DNA and PCR analysis process was conducted in Biology Laboratorium of Riau University. The sequencing DNA process was conducted in PT. Genetika Science Indonesia, West Jakarta. The result showed that the twenty three pure isolates bacteria and only seven isolates could be sequenced. Bacterial isolates 20M2, 20M4, 20M5, 20M11, 30M6, 30M7 and 30M8 able to inhibit the growth of pathogenic bacteria. Based on the BLAST system accessed via World Wide Web, the isolated bacteria were: Bacillus toyonensis strain ACOPR1ISOXg, Bacillus subtilis strain Y37, Enterobacter cloacae strain ENC-3, Clostridium acetobulylicum strain S512, Bacillus cereus strain 4PLGES, Bacillus cereus strain ML267 and Bacillus thuringensis strain C17

    Complementarity of a Low Energy Photon Collider and LHC Physics

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    We discuss the complementarity between the LHC and a low energy photon collider. We mostly consider the scenario, where the first linear collider is a photon collider based on dual beam technology like CLIC.Comment: 29 pages, 37 figure, LP-200

    Ground Motion Studies at NuMI

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    Ground motion can cause significant deterioration in the luminosity of a linear collider. Vibration of numerous focusing magnets causes continuous misalignments, which makes the beam emittance grow. For this reason, understanding the seismic vibration of all potential LC sites is essential and related efforts in many sites are ongoing. In this document we summarize the results from the studies specific to Fermilab grounds as requested by the LC project leader at FNAL, Shekhar Mishra in FY04-FY06. The Northwestern group focused on how the ground motion effects vary with depth. Knowledge of depth dependence of the seismic activity is needed in order to decide how deep the LC tunnel should be at sites like Fermilab. The measurements were made in the NuMI tunnel, see Figure 1. We take advantage of the fact that from the beginning to the end of the tunnel there is a height difference of about 350 ft and that there are about five different types of dolomite layers. The support received allowed to pay for three months of salary of Michal Szleper. During this period he worked a 100% of his time in this project. That include one week of preparation: 2.5 months of data taking and data analysis during the full period of the project in order to guarantee that we were recording high quality data. We extended our previous work and made more systematic measurements, which included detailed studies on stability of the vibration amplitudes at different depths over long periods of time. As a consequence, a better control and more efficient averaging out of the daytime variation effects were possible, and a better study of other time dependences before the actual depth dependence was obtained. Those initial measurements were made at the surface and are summarized in Figure 2. All measurements are made with equipment that we already had (two broadband seismometers KS200 from GEOTECH and DL-24 portable data recorder). The offline data analysis took advantage of the full Fourier spectra information and the noise was properly subtracted. The basic formalism is summarized if Figure 3. The second objective was to make a measurement deeper under ground (Target hall, Absorber hall and Minos hall - 150 ft to 350 ft), which previous studies did not cover. All results are summarized in Figure 3 and 4. The measurements were covering a frequency range between 0.1 to 50 Hz. The data was taken continuously for at least a period of two weeks in each of the locations. We concluded that the dependence on depth is weak, if any, for frequencies above 1 Hz and not visible at all at lower frequencies. Most of the attenuation (factor of about 2-3) and damping of ground motion that is due to cultural activity at the surface is not detectable once we are below 150 ft underground. Therefore, accelerator currently under consideration can be build at the depth and there is no need to go deeper underground is built at Fermi National Laboratory

    Potential Role of Phosphatidylinositol 3 Kinase, rather than DNA-dependent Protein Kinase, in CpG DNA–induced Immune Activation

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    Unmethylated CpG motifs present in bacterial DNA stimulate a strong innate immune response. There is evidence that DNA-dependent protein kinase (DNA-PK) mediates CpG signaling. Specifically, wortmannin (an inhibitor of phosphatidylinositol 3 kinase [PI3]-kinases including DNA-PK) interferes with CpG-dependent cell activation, and DNA-PK knockout (KO) mice fail to respond to CpG stimulation. Current studies establish that wortmannin actually inhibits the uptake and colocalization of CpG DNA with toll-like receptor (TLR)-9 in endocytic vesicles, thereby preventing CpG-induced activation of the NF-κB signaling cascade. We find that DNA-PK is not involved in this process, since three strains of DNA-PK KO mice responded normally to CpG DNA. These results support a model in which CpG signaling is mediated through TLR-9 but not DNA-PK, and suggest that wortmannin-sensitive member(s) of the PI3-kinase family play a critical role in shuttling CpG DNA to TLR-9

    Analysis of respiratory function and muscle strength of elite judo athletes and sedentary females

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    The purpose of this study is to analyse the respiratory function and muscle strengths of elite female judo athletes and sedentary females. 20 elite female judo athletes (EG) and 20 sedentary healthy females (CG) participated in our study. The subjects’ respiratory function tests were conducted in sitting position with spirometry, while the respiratory muscle strength tests were conducted by using intraoral barometry. SPSS 22.0 program was used for statistical analysis. When EG and CG were analysed in terms of respiratory functions, no statistically significant difference was found (p>0.05). However, when MIP* and MEP** values were analysed, it was found statistically that female judo athletes (EG) had much higher results when compared with sedentary females (CG) (*p<0.05, **p<0.01). As a conclusion, it can be seen that elite female judo athletes had stronger respiratory muscles when compared with sedentary females, while their lung capacities were found to be similar. Based on the results of our study, it is thought that by doing extra respiratory muscle and function developing trainings, these parameters influencing performance can be developed in female judo athletes. In addition, our study has the characteristic of a reference in terms of respiratory functions and especially respiratory muscle strength in the branch of judo

    ANÁLISIS DE VARIABLES E INDICADORES PARA EVALUAR LA INCLUSIÓN DIGITAL

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    El propósito de este artículo es presentar los resultados de una investigación enfocada en el análisis de variables e indicadores propuestos, en artículos científicos en el periodo de 2004 a 2014, para evaluar la inclusión digital. Para identificar los documentos a analizar se realizó una revisión sistemática de literatura, y para el análisis de variables e indicadores se utilizó la metodología propuesta por González-Zabala y Sánchez-Torres. Los principales resultados fueron la identificación de 59 documentos, incluidos en revistas y eventos científicos, que cumplieron con el criterio de calidad, así como la identificación de 1239 variables indicadores. La clasificación de las variables e indicadores permitieron evidenciar que el 48,7% de estos se enfocan en la evaluación de factores habilitadores de la inclusión digital, el 42% en la participación y uso de e-servicios y el 9,3% en aspectos del entorno. La investigación evidenció que si bien se evalúan aspectos relacionados con la infraestructura y el acceso a tecnologías e información y comunicación (TIC), la evaluación está considerando aspectos como el acceso a servicios básicos, la formación digital, las características del usuario y la promoción de e-servicios. Estos resultados se constituyen en un referente importante para entender cómo se realiza los procesos de evaluación de la e-inclusión y para enriquecer modelos existentes. PALABRAS CLAVES: Análisis, Evaluación, Inclusión digital, Indicadores, Variables

    2016 UEFA European Championship: Pass and shot association

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    The purpose of this study is to analyze the association between technical features such as goal, pass, shot, ball possession and ball stealing, and the goals scored in matches played by teams who qualified out of the group (n=16) and who could not (n=8) in 2016 UEFA European Championship. The data of the study were obtained by using computerized multiple camera surveillance system (Prozone). SPSS 22.0 program was used for the statistical analyses of this study. Independent T test was used to compare the parameters of teams who qualified out of the team and those who could not, while Pearson correlation analysis was used to analyze the association between variables. When the total shot parameters per match apart from shots, total pass, total pass to the third zone and ball stealing total data were compared, significant difference was found (p<0.05). In all of the shot parameters, especially in total goals scored and total shots on target (r=0.903), a positive high association was found in total ball stealing (r=0.796), total pass (r=0.753), total forward pass (r=0.819) and total pass to the third zone (r=0.748), while a negative intermediate association was found in average pass length per match (34+M) (r=-0.449). When the results were examined, it can be said that the teams who qualified out of the game can use technical properties effectively. It can be stated that in order to be successful in elite tournaments in the world, analysis practices should be taken more into consideration as well as technical and tactical practices
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