Relevant bibliographies by topics / AGWs

Academic literature on the topic 'AGWs'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'AGWs.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "AGWs"

1

Balthazor, R. L., R. J. Moffett, and G. H. Millward. "A study of the Joule and Lorentz inputs in the production of atmospheric gravity waves in the upper thermosphere." Annales Geophysicae 15, no. 6 (June 30, 1997): 779–85. http://dx.doi.org/10.1007/s00585-997-0779-6.

Full text
Abstract:
Abstract. First results of a modelling study of atmospheric gravity waves (AGWs) are presented. A fully-coupled global thermosphere-ionosphere-plasmasphere model is used to examine the relative importance of Lorentz forcing and Joule heating in the generation of AGWs. It is found that Joule heating is the dominant component above 110km. The effects of the direction of the Lorentz forcing component on the subsequent propagation of the AGW are also addressed. It is found that enhancement of zonal E×B forcing results in AGWs at F-region altitudes of similar magnitudes travelling from the region of forcing in both poleward and equatorward directions, whilst enhancement of equatorward meridional E×B forcing results in AGWs travelling both poleward and equatorward, but with the magnitude of the poleward wave severely attenuated compared with the equatorward wave
APA, Harvard, Vancouver, ISO, and other styles
2

Magalhaes, J. M., I. B. Araújo, J. C. B. da Silva, R. H. J. Grimshaw, K. Davis, and J. Pineda. "Atmospheric gravity waves in the Red Sea: a new hotspot." Nonlinear Processes in Geophysics 18, no. 1 (February 3, 2011): 71–79. http://dx.doi.org/10.5194/npg-18-71-2011.

Full text
Abstract:
Abstract. The region of the Middle East around the Red Sea (between 32° E and 44° E longitude and 12° N and 28° N latitude) is a currently undocumented hotspot for atmospheric gravity waves (AGWs). Satellite imagery shows evidence that this region is prone to relatively high occurrence of AGWs compared to other areas in the world, and reveals the spatial characteristics of these waves. The favorable conditions for wave propagation in this region are illustrated with three typical cases of AGWs propagating in the lower troposphere over the sea. Using weakly nonlinear long wave theory and the observed characteristic wavelengths we obtain phase speeds which are consistent with those observed and typical for AGWs, with the Korteweg-de Vries theory performing slightly better than Benjamin-Davis-Acrivos-Ono theory as far as phase speeds are concerned. ERS-SAR and Envisat-ASAR satellite data analysis between 1993 and 2008 reveals signatures consistent with horizontally propagating large-scale internal waves. These signatures cover the entire Red Sea and are more frequently observed between April and September, although they also occur during the rest of the year. The region's (seasonal) propagation conditions for AGWs, based upon average vertical atmospheric stratification profiles suggest that many of the signatures identified in the satellite images are atmospheric internal waves.
APA, Harvard, Vancouver, ISO, and other styles
3

Yue, Jia, Septi Perwitasari, Shuang Xu, Yuta Hozumi, Takuji Nakamura, Takeshi Sakanoi, Akinori Saito, Steven D. Miller, William Straka, and Pingping Rong. "Preliminary Dual-Satellite Observations of Atmospheric Gravity Waves in Airglow." Atmosphere 10, no. 11 (October 28, 2019): 650. http://dx.doi.org/10.3390/atmos10110650.

Full text
Abstract:
Atmospheric gravity waves (AGWs) are among the important energy and momentum transfer mechanisms from the troposphere to the middle and upper atmosphere. Despite their understood importance in governing the structure and dynamics of these regions, mesospheric AGWs remain poorly measured globally, and largely unconstrained in numerical models. Since late 2011, the Suomi National Polar-orbiting Partnership (NPP) Visible/Infrared Imaging Radiometer Suite (VIIRS) day–night band (DNB) has observed global AGWs near the mesopause by virtue of its sensitivity to weak emissions of the OH* Meinel bands. The wave features, detectable at 0.75 km spatial resolution across its 3000 km imagery swath, are often confused by the upwelling emission of city lights and clouds reflecting downwelling nightglow. The Ionosphere, Mesosphere, upper Atmosphere and Plasmasphere (IMAP)/ Visible and near-Infrared Spectral Imager (VISI) O2 band, an independent measure of the AGW structures in nightglow based on the International Space Station (ISS) during 2012–2015, contains much less noise from the lower atmosphere. However, VISI offers much coarser resolution of 14–16 km and a narrower swath width of 600 km. Here, we present preliminary results of comparisons between VIIRS/DNB and VISI observations of AGWs, focusing on several concentric AGW events excited by the thunderstorms over Eastern Asia in August 2013. The comparisons point toward suggested improvements for future spaceborne airglow sensor designs targeting AGWs.
APA, Harvard, Vancouver, ISO, and other styles
4

Husein-ElAhmed, Husein. "Could the human papillomavirus vaccine prevent recurrence of ano-genital warts?: a systematic review and meta-analysis." International Journal of STD & AIDS 31, no. 7 (May 21, 2020): 606–12. http://dx.doi.org/10.1177/0956462420920142.

Full text
Abstract:
Human papillomavirus (HPV) is the most prevalent sexually transmitted infection worldwide and ano-genital warts (AGWs) are highly infectious. This virus is transmitted through sexual, anal, or oral contact as well as skin-to-skin contacts. Treatment for this condition has significant morbidity and it can be frustrating in certain cases. The HPV vaccination has been demonstrated as a promising strategy of secondary prevention in HPV-related diseases such as head and neck cancers, cervical diseases, and recurrent respiratory papillomatosis. Regarding AGWs, it is unclear whether vaccination can provide analogous clinical benefit. The aim of this work is to systematically review the literature regarding HPV vaccination for secondary disease prevention after treatment of AGWs. From October to December 2018, a systematic search for clinical trials was conducted in five databases: PubMed, MEDLINE, EMBASE, Cochrane, and clinicaltrials.gov using a combination of the following descriptors: ‘gardasil’ OR ‘cervarix’ OR ‘nine-valent’ OR ‘9-valent’ OR ‘vaccine’ AND ‘recurrence’ OR ‘relapse’ AND ‘hpv’ OR ‘papillomavirus’ AND ‘warts’ OR ‘condyloma.’ Data were synthetized and entered in the Review Manager software (RevMan 5.3.5) to perform the meta-analysis. The search yielded 824 potentially relevant studies. Two studies fulfilled the eligibility criteria involving 656 participants. The meta-analysis estimated the rate of recurrence of AGWs was similar between the vaccine group and the control group. The overall effect estimate was 1.02 (0.75–1.38). This is the first meta-analysis exploring the effect of HPV vaccine in preventing the relapse of AGWs. These results suggest that HPV vaccination does not provide secondary benefit in patients with previous AGWs. However, these results cannot be generalized due to the scarce number of RCTs currently available in the literature. The outcomes from future randomized controlled trials (RCTs) are warranted to further clarify the precise effect of the vaccine.
APA, Harvard, Vancouver, ISO, and other styles
5

Barton, Samantha, Victoria Wakefield, Colm O'Mahony, and Steven Edwards. "Effectiveness of topical and ablative therapies in treatment of anogenital warts: a systematic review and network meta-analysis." BMJ Open 9, no. 10 (October 2019): e027765. http://dx.doi.org/10.1136/bmjopen-2018-027765.

Full text
Abstract:
ObjectiveTo generate estimates of comparative clinical effectiveness for interventions used in the treatment of anogenital warts (AGWs) through the systematic review, appraisal and synthesis of data from randomised controlled trials (RCTs).DesignSystematic review and network meta-analysis of RCTs. Search strategies were developed for MEDLINE, Embase, the Cochrane Library and the Web of Science. For electronic databases, searches were run from inception to March 2018. The systematic review was carried out following the general principles recommended in the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement.ParticipantsPeople aged ≥16 years with clinically diagnosed AGWs (irrespective of biopsy confirmation).InterventionsTopical and ablative treatments recommended by the British Association for Sexual Health and HIV for the treatment of AGWs, either as monotherapy or in combination versus each other.Outcome measuresComplete clearance of AGWs at the end of treatment and at other scheduled visits, and rate of recurrence.ResultsThirty-seven RCTs met inclusion criteria. Twenty studies were assessed as being at unclear risk of bias, with the remaining studies categorised as high risk of bias. Network meta-analysis indicates that, of the treatment options compared, carbon dioxide laser therapy is the most effective treatment for achieving complete clearance of AGWs at the end of treatment. Of patient-applied topical treatments, podophyllotoxin 0.5% solution was found to be the most effective at achieving complete clearance, and was associated with a statistically significant difference compared with imiquimod 5% cream and polyphenon E 10% ointment (p<0.05). Few data were available on recurrence of AGWs after complete clearance. Of the interventions evaluated, surgical excision was the most effective at minimising risk of recurrence.ConclusionOf the studies assessed, as a collective, the quality of the evidence is low. Few studies are available that evaluate treatment options versus each other.Trial registration numberCRD42013005457
APA, Harvard, Vancouver, ISO, and other styles
6

Mercier, C., and A. R. Jacobson. "Observations of atmospheric gravity waves by radio interferometry: are results biased by the observational technique?" Annales Geophysicae 15, no. 4 (April 30, 1997): 430–42. http://dx.doi.org/10.1007/s00585-997-0430-6.

Full text
Abstract:
Abstract. In this paper we present a quantitative comparison between a large data base of medium-scale atmospheric gravity waves (AGWs) observed by radio interferometry of transionospheric radio sources and the results of a numerical simulation of the observed effects. The simulation includes: (i) the propagation and dissipation of AGWs up to ionospheric heights and (ii) the calculation of the subsequent slant TEC perturbations integrated along the path to the radio sources. We show that the observed azimuthal distribution of AGWs can be deeply biased. Predicted results are found to be consistent with previous extensive observations using radio beacons aboard geostationary satellites. These observations are rediscussed in view of the present predictions.
APA, Harvard, Vancouver, ISO, and other styles
7

Didebulidze, Goderdzi G., Giorgi Dalakishvili, and Maya Todua. "Formation of Multilayered Sporadic E under an Influence of Atmospheric Gravity Waves (AGWs)." Atmosphere 11, no. 6 (June 19, 2020): 653. http://dx.doi.org/10.3390/atmos11060653.

Full text
Abstract:
The formation of multilayered sporadic E by atmospheric gravity waves (AGWs), propagating in the mid-latitude lower thermosphere, is shown theoretically and numerically. AGWs with a vertical wavelength smaller than the width of the lower thermosphere lead to the appearance of vertical drift velocity nodes (regions where the ions’ vertical drift velocity, caused by these waves, is zero) of heavy metallic ions (Fe+). The distance between the nearest nodes is close to the AGWs’ vertical wavelength. When the divergence of the ion vertical drift velocity at its nodes has a minimal negative value, then these charged particles can accumulate into Es-type thin layers and the formation of multilayered sporadic E is possible. We showed the importance of the ions’ ambipolar diffusion in the formation of Es layers and control of their densities. Oblique downward or upward propagation of AGWs causes downward or upward motion of the ion vertical drift velocity nodes by the vertical propagation phase velocity of these waves. In this case, the formed Es layers also descend or move upward with the same phase velocity. The condition, when the horizontal component of AGWs’ intrinsic phase velocity (phase velocity relative to the wind) and background wind velocity have same magnitudes but opposite directions, is favorable for the formation of the multilayered sporadic E at fixed heights of the sublayers. When the AGWs are absent, then horizontal homogeneous wind causes the formation of sporadic E but with a single peak. In the framework of the suggested theory, it is shown that, in the lower thermosphere, the wind direction, magnitude, and shear determine the development of the processes of ion/electron convergence into the Es-type layer, as well as their density divergence. Consideration of arbitrary height profiles of the meridional and zonal components of the horizontal wind velocity, in case of AGW propagation, should be important for the investigation of the distribution and behavior of heavy metallic ions on regional and global scales.
APA, Harvard, Vancouver, ISO, and other styles
8

Zhao, Weibo, Xiong Hu, Zhaoai Yan, Weilin Pan, Wenjie Guo, Junfeng Yang, and Xiaoyong Du. "Atmospheric Gravity Wave Potential Energy Observed by Rayleigh Lidar above Jiuquan (40° N, 95° E), China." Atmosphere 13, no. 7 (July 13, 2022): 1098. http://dx.doi.org/10.3390/atmos13071098.

Full text
Abstract:
Two years of observational data from the 532 nm Rayleigh lidar were used to study the vertical profile characteristics of atmospheric gravity wave potential energy density (GWPED) between 40–80 km above Jiuquan (40° N, 95° E) for the first time. The atmospheric gravity waves (AGWs) characteristics are presented in terms of the atmospheric relative temperature perturbation, along with the estimated annual and seasonal GWPED with high spatial and temporal resolution (0.5 km and 1 h). The annual potential energy mass density Epm and volume density Epv vertical profiles show that the GWPED in the upper mesosphere is close to the adiabatic growth rate. The seasonal vertical profiles result shows that Epm is higher in autumn–winter than in spring–summer in all the observed altitudes. The GWPED approaches adiabatic growth above 61 and 65 km in spring–summer and autumn–winter, respectively. The AGWs severely dissipate below the turning altitudes and transfer energy into the background atmosphere. The GWPED scale heights show that the AGWs dissipation rate of spring–summer is close to that of autumn–winter. Furthermore, based on the wind data from SD–WACCM, the influence of critical level filtering on AGWs is discussed. It plays an important role in affecting the seasonal variation in GWPED.
APA, Harvard, Vancouver, ISO, and other styles
9

Fedorenko, A. K., E. I. Kryuchkov, and O. K. Cheremnykh. "Influence of vertical heterogeneity of the atmosphere temperature on the propagation of acoustic-gravity waves." Kinematika i fizika nebesnyh tel (Online) 36, no. 6 (November 1, 2020): 3–21. http://dx.doi.org/10.15407/kfnt2020.06.003.

Full text
Abstract:
A new approach to the study of acoustic-gravity waves (AGW) in the Earth’s atmosphere in the presence of a vertical temperature inhomogeneity is proposed. Using this approach, the local AGW dispersion equation is obtained for an atmosphere with a small vertical temperature gradient. The modification of acoustic and gravitational regions of freely propagating AGWs on the spectral plane is studied depending on the temperature gradient. It is shown that, the acoustic and gravitational regions approach each other with a positive temperature gradient and the distance between them increases with a negative gradient. On the spectral plane, the dispersion curves of non-divergent and anelastic horizontal wave modes are the indicators of location of the acoustic and the gravitational regions of freely propagating AGWs. The possibility of overlapping the acoustic and the gravitational regions of AGWs in non-isothermal atmosphere is investigated.
APA, Harvard, Vancouver, ISO, and other styles
10

Thurgar, Elizabeth, Samantha Barton, Charlotta Karner, and Steven J. Edwards. "Clinical effectiveness and cost-effectiveness of interventions for the treatment of anogenital warts: systematic review and economic evaluation." Health Technology Assessment 20, no. 24 (March 2016): 1–486. http://dx.doi.org/10.3310/hta20240.

Full text
Abstract:
BackgroundTypically occurring on the external genitalia, anogenital warts (AGWs) are benign epithelial skin lesions caused by human papillomavirus infection. AGWs are usually painless but can be unsightly and physically uncomfortable, and affected people might experience psychological distress. The evidence base on the clinical effectiveness and cost-effectiveness of treatments for AGWs is limited.ObjectivesTo systematically review the evidence on the clinical effectiveness of medical and surgical treatments for AGWs and to develop an economic model to estimate the cost-effectiveness of the treatments.Data sourcesElectronic databases (MEDLINE, MEDLINE In-Process & Other Non-Indexed Citations, EMBASE, The Cochrane Library databases and Web of Science) were searched from inception (or January 2000 for Web of Science) to September 2014. Bibliographies of relevant systematic reviews were hand-searched to identify potentially relevant studies. The World Health Organization International Clinical Trials Registry Platform and ClinicalTrials.gov were searched for ongoing and planned studies.Review methodsA systematic review of the clinical effectiveness literature was carried out according to standard methods and a mixed-treatment comparison (MTC) undertaken. The model implemented for each outcome was that with the lowest deviance information criterion. A de novo economic model was developed to assess cost-effectiveness from the perspective of the UK NHS. The model structure was informed through a systematic review of the economic literature and in consultation with clinical experts. Effectiveness data were obtained from the MTC. Costs were obtained from the literature and standard UK sources.ResultsOf 4232 titles and abstracts screened for inclusion in the review of clinical effectiveness, 60 randomised controlled trials (RCTs) evaluating 19 interventions were included. Analysis by MTC indicated that ablative techniques were typically more effective than topical interventions at completely clearing AGWs at the end of treatment. Podophyllotoxin 0.5% solution (Condyline®, Takeda Pharmaceutical Company Ltd; Warticon®solution, Stiefel Laboratories Ltd) was found to be the most effective topical treatment evaluated. Networks for other outcomes included fewer treatments, which restrict conclusions on the comparative effectiveness of interventions. In total, 84 treatment strategies were assessed using the economic model. Podophyllotoxin 0.5% solution first line followed by carbon dioxide (CO2) laser therapy second line if AGWs did not clear was most likely to be considered a cost-effective use of resources at a willingness to pay of £20,000–30,000 per additional quality-adjusted life-year gained. The result was robust to most sensitivity analyses conducted.LimitationsLimited reporting in identified studies of baseline characteristics for the enrolled population generates uncertainty around the comparability of the study populations and therefore the generalisability of the results to clinical practice. Subgroup analyses were planned based on type, number and size of AGWs, all of which are factors thought to influence treatment effect. Lack of data on clinical effectiveness based on these characteristics precluded analysis of the differential effects of treatments in the subgroups of interest. Despite identification of 60 studies, most comparisons in the MTC are informed by only one RCT. Additionally, lack of head-to-head RCTs comparing key treatments, together with minimal reporting of results in some studies, precluded comprehensive analysis of all treatments for AGWs.ConclusionsThe results generated by the MTC are in agreement with consensus opinion that ablative techniques are clinically more effective at completely clearing AGWs after treatment. However, the evidence base informing the MTC is limited. A head-to-head RCT that evaluates the comparative effectiveness of interventions used in clinical practice would help to discern the potential advantages and disadvantages of the individual treatments. The results of the economic analysis suggest that podophyllotoxin 0.5% solution is likely to represent a cost-effective first-line treatment option. More expensive effective treatments, such as CO2laser therapy or surgery, may represent cost-effective second-line treatment options. No treatment and podophyllin are unlikely to be considered cost-effective treatment options. There is uncertainty around the cost-effectiveness of treatment with imiquimod, trichloroacetic acid and cryotherapy.Study registrationThis study is registered as PROSPERO CRD42013005457.FundingThe National Institute for Health Research Health Technology Assessment programme.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "AGWs"

1

Bergh, Amy. "TO THE AGES OF AGES: RECONCEPTUALIZING HIGH SCHOOL ART HISTORY CURRICULUM." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/2434.

Full text
Abstract:
Through this curriculum study, I explored the application of ideas found within contemporary art education to a course of traditional secondary art history. These contemporary art education ideas included: visual culture instruction, interdisciplinary instruction, contemporary art instruction, curriculum development, the use of enduring ideas, and the inclusion of a variety of perspectives based on gender and ethnicity. Through these art education ideas, a new curriculum was formed, that pushed both the students and the teacher toward a more inclusive art history course that made real connections for students and allowed students to be active members in their own learning. Instruction shifted away from lecture and became more dialogue and discussion oriented. Unit examples are included for Romanticism, Dadaism, and American Social Realism.
APA, Harvard, Vancouver, ISO, and other styles
2

Franssen, Trijsje Marie. "Prometheus through the ages." Thesis, University of Exeter, 2014. http://hdl.handle.net/10871/15889.

Full text
Abstract:
This dissertation explores the role and significance of the ancient Greek myth of Prometheus in Western philosophy from Antiquity to today. Paying particular attention to its moral and existential meanings, an analysis of this in-depth investigation produces an overview of the exceptional array of the myth’s functions and themes. It demonstrates that the most significant functions of the Prometheus myth are its social, epistemic, ontological and moral functions and that the myth’s most significant themes are fire, rebellion, creation, human nature and ambiguity. The dissertation argues that this analysis brings to light meaningful information on two sides of a reference to the Prometheus myth: it reveals the nature, functions, themes and connotations of the myth, while information about these functions and themes provides access to fundamental meanings, moral statements and ontological concepts of the studied author. Based on its findings this work claims that, as in history, first, the Prometheus myth will still be meaningful in philosophy today; and second, that the analysis of the myth’s functions and themes will provide access to essential ideas underlying contemporary references to the myth. To prove the validity of these claims this thesis examines the contemporary debate on ‘human enhancement’. Advocates as well as opponents of enhancement make use of the Prometheus myth in order to support their arguments. Employing the acquired knowledge about the myth’s functions and themes, the dissertation analyses the references encountered. The results of this analysis confirm that the Prometheus myth still has a significant role in a contemporary philosophical context. They improve our understanding of the philosophical argument, ontological framework and ethics of the debate’s participants; and thus demonstrate that the information about the Prometheus myth acquired in this thesis is a useful means to reveal fundamental ideas and conceptualisations underlying contemporary (and possibly future) references to the myth.
APA, Harvard, Vancouver, ISO, and other styles
3

Rio, Véronique. "Médicaments et sujets agés." Paris 5, 1991. http://www.theses.fr/1991PA05P194.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kuchařová, Pavlína. "Ocenění podniku Agos, a.s." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-15943.

Full text
Abstract:
This thesis concerns valuation of Agos, a.s.. DCF entity method and market comparable approach were apllied to valuation. The thesis contains strategis analysis, financial analysis of company, value generator and financial plan.
APA, Harvard, Vancouver, ISO, and other styles
5

Premalatha, Venkataraman. "Music through the ages /." Delhi : Sundeep Prakashan, 1985. http://catalogue.bnf.fr/ark:/12148/cb361998687.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Erdem, Rengin. "Ag2s/2-mpa Quantum Dots." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614384/index.pdf.

Full text
Abstract:
Quantum dots are fluorescent semiconductor nanocrystals that have unique optical properties such as high quantum yield and photostability. These nanoparticles are superior to organic dyes and fluorescent proteins in many aspects and therefore show great potential for both in vivo and in vitro imaging and drug delivery applications. However, cytototoxicity is still one of the major problems associated with their biological applications. The aim of this study is in vitro characterization and assessment of biological application potential of a novel silver sulfide quantum dot coated with mercaptopropionic acid (2-MPA). In vitro studies reported in this work were conducted on a mouse fibroblast cell line (NIH/3T3) treated with Ag2S/2-MPA quantum dots in 10-600 &mu
g/mL concentration range for 24 h. Various fluorescence spectroscopy and microscopy methods were used to determine metabolic activity, proliferation rate and apoptotic fraction of QD-treated cells as well as QD internalization efficiency and intracellular localization. Metabolic activity and proliferation rate of the QD treated cells were measured with XTT and CyQUANT®
cell proliferation assays, respectively. Intracellular localization and qualitative uptake studies were conducted using confocal laser scanning microscopy. Apoptosis studies were performed with Annexin V assay. Finally, we also conducted a quantitative uptake assay to determine internalization efficiency of the silver sulfide particles. Correlated metabolic activity and proliferation assay results indicate that Ag2S/2-MPA quantum dots are highly cytocompatible with no significant toxicity up to 600 &mu
g/mL treatment. Optimal cell imaging concentration was determined as 200 &mu
g/mL. Particles displayed a punctuated cytoplasmic distribution indicating to endosomal entrapment. In vitro characterization studies reported in this study indicate that Ag2S/2-MPA quantum dots have great biological application potential due to their excellent spectral and cytocompatibility properties. Near-infrared emission of silver sulfide quantum dots provides a major advantage in imaging since signal interference from the cells (autofluorescence) which is a typical problem in microscopic studies is minimum in this part of the emission spectrum. The results of this study are presented in an article which was accepted by Journal of Materials Chemistry. DOI: 10.1039/C2JM31959D.
APA, Harvard, Vancouver, ISO, and other styles
7

Reichel, Judith. "Cognition through the (st-)ages." Diss., Ludwig-Maximilians-Universität München, 2015. http://nbn-resolving.de/urn:nbn:de:bvb:19-180053.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Taylor, Rhys. "Virgo Cluster through the AGES." Thesis, Cardiff University, 2010. http://orca.cf.ac.uk/54997/.

Full text
Abstract:
The results of the deep HI survey AGES are presented for two regions in the Virgo Cluster. Covering a total of 15 square degrees to a sensitivity of 0.6 mJy/beam, 73 objects are detected within the cluster, with 109 detections in the background. A new automatic extractor is described which gives greater completeness and reliability than previous methods. The majority of the cluster detections are associated with galaxies previously identified in the optical Virgo Cluster Catalogue, but nearly 30% of the cluster detections are new objects below the VCC completeness limit. Their optical and HI characteristics are described. No definite optically dark galaxies are identified, however 4 intriguing candidates are reported. All have possible optical counterparts but these are extremely faint, and their HI velocity widths appear inconsistent for such objects when compared to the more certain associations. The likelyhood that these are really dark galaxies is discussed, but further observations are required for a more definitive analysis. Cluster galaxies are found to be significantly HI deficient but it is not clear where their missing gas has gone. An automated algorithm is described to try to recover faint extended HI features, but no detections are made. The HI may be ionised by the intracluster medium or the sensitivity of the survey insufficient - the relative merits of these views are assessed. A small fraction (10%) of the early-type galaxies identified in the VCC are detected in HI. Evidence that some of these are morphologically evolving via gas loss, while others are recent additions to the cluster as yet unaffected by their new environment, is discussed. I also compare and contrast the two separate areas studied, describe the cluster's HI mass-function from AGES and other surveys, and discuss the overall influence of the cluster environment on galaxy properties.
APA, Harvard, Vancouver, ISO, and other styles
9

Angus, Ruth. "Stellar ages and stellar rotation." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:07f78624-adfe-4775-9d3e-dbc63636156a.

Full text
Abstract:
Stellar ages will play a big role in the next generation of astronomy. Useful to exoplaneteers and galactic archaeologists alike, this relatively under-exploited stellar property is currently limited by the precision of dating techniques. The work presented in this thesis contributes incrementally to a greater understanding of rotation period decay in Main Sequence (MS) stars as a proxy for stellar age. Inferring stellar ages from rotation periods, 'gyrochronology', is the only dating method with the potential to provide ages for stars on the hundreds-of-thousands scale. Unfortunately however, it suffers from being poorly calibrated as the sample of cool, MS stars with precise ages is extremely sparse. Using light curves of spotted, rotating, MS, FGK stars with asteroseismic ages from the Kepler spacecraft, I attempted to recalibrate the relation between rotation period, colour and age. I demonstrate that the simple, 'straight line' gyrochronology relations used in the past are unable to explain the new asteroseismic sample. Questions are raised about the power of gyrochronology---does it accurately predict ages for old stars? To fully answer this question, it will be necessary to exploit new data from the K2 (the repurposed Kepler mission). K2 has observed (and is still observing) several open clusters and asteroseismic field stars which may provide new insight into stellar rotational evolution. Unfortunately, systematic features in K2 light curves produced by Kepler's reduced pointing precision inhibit the detection of astrophysical signals in the data. These systematic features can be removed by modelling and subtracting them from the time series, 'detrending', but this process can remove some signals and can even inject noise. For this reason I developed a method for detecting periodic signals in K2 light curves without detrending: the Systematics-Insensitive Periodogram (SIP). This method is particularly useful for red giant asteroseismology. Precise ages can be inferred for oscillating red giants using the SIP and will be useful for galactic archaeology and open cluster age inference. In the next chapter of this thesis I return to the problem of stellar rotation period inference. Current methods for rotation period inference can produce inaccurate, imprecise periods with poorly approximated uncertainties and often without uncertainties altogether. I present a new method for inferring precise, accurate, probabilistic rotation periods with accurate uncertainties using Gaussian processes. Although expensive to compute, this method is ideal for applying to individual targets. I hope to continue to develop this method and apply it to a large ensemble light curves from Kepler and other photometric surveys in the future. Star spots and acoustic (p-mode) oscillations are not the only mechanisms that produce variability in dwarfs and giants. A combination of asteroseismic pulsations and granulation on the stellar surface produces variability on short timescales. It has been shown that the amplitude of this short-term variability, called 'flicker' is strongly correlated with both surface gravity and stellar density (Bastien et al., 2013, Bastien et al., 2016, Kipping et al., 2014). However, there is substantial additional scatter in these relations that is not accounted for by the observational uncertainties. I provide a new calibration of these relations which models this level of additional, astrophysical variance using hierarchical probabilistic inference. In the final chapter of this thesis I explore rotation period recovery with the Large Synoptic Survey Telescope (LSST). With its ten year baseline, LSST light curves will be sensitive to long rotation periods which are characteristic of old and low-mass stars. If the rotation periods of such stars can be measured from LSST light curves, it may be possible to improve the gyrochronology relations. We find that LSST is most sensitive to rotation periods between 10 and 20 days. Its sensitivity falls at short periods due to the sparsity of its sampling and at longer periods due to the lower amplitudes of variability and smaller apparent magnitudes of slow rotators.
APA, Harvard, Vancouver, ISO, and other styles
10

Mac, Ruairí Tony. "An Dúiche agus An Duine : i gcuid Amhrán Ghaeilge an Iarthuaiscirt: Láithriú, Seachadadh agus Caomhnú." Thesis, Ulster University, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728379.

Full text
Abstract:
Is e an aidhm ata leis an taighde seo no go mbeadh tuigbheal nios iomlaine againn ar an leargas a thugann amhrain Ghaeilge iarthuaiscirt Thir Chonaill duinn ar an phobal ar diobh iad. Lena chois sin, ta se mar sprioc agam anailis a dheanamh ar fheidhm agus ar ionad na hamhranaiochta i gcomhtheacs a saol agus a n-aite duchais. Glactar sa staidear seo le pobal Gaeltachta ar leith a mhair i sleibhte agus ar chladai iarthuaisceart na hEireann on chianaois. Pobal a bhfuil sliocht a sleachta le fail sa duiche sin go dti an la inniu. Amharcfar ar na traidisiuin a freamhaiodh sna daoine seo. Traidisiuin a caomhnaiodh agus a thainig anuas 6 ghluin go gluin de reir an tseanchorais— an slabhra gan bhriseadh ata de shior ar bhru eaga ag nua-aimsearthacht agus domhandu. Direofar go sonrach ar ghne ar leith den bhealoideas, .i. traidisiun na n-amhran agus na hamhranaiochta. Scrudofar an tabhacht agus an usaid a bhainti as an ealain seo i gcaitheamh a saol, i ngneithe da mbeatha chomh maith leis an bhas. Deanfar taobhanna airithe den sceal a chur san aireamh le pictiur a fhail ar na dalai saoil a mhunlaigh agus a d ’fhag againn na hamhrain ghra, imirce, caointe agus de reir sin. Deanfar mionscagadh ar na foinsi seo le tuilleadh eolas a shu astu a bhearfaidh leargas duinn ar ‘stair shoisialta na ndaoine’. Cuireann an traidisiun amhranaiochta dioscursa ar fail duinn ar shaol na ndaoine a bhi agus ata pairteach ann, agus cuireann na hamhrain fein ar ar gcumas stair an phobail seo a bhreith as an nua, mar, new history from below) Is anailis ar an dioscursa sin ata idir lamha, de reir dhearcaidh agus faoi mar a mhol Martyn Lyons:
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "AGWs"

1

Innealtóireacht agus teicneolaíocht bhunúsach: Teicníochtaí agus dearadh, ábhair agus teicneolaíocht. 2nd ed. Baile Átha Cliath: An Gúm, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hammarskog, Björn. World ages. Raleigh, N.C: Pentland Press, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ice ages. Chatswood, N.S.W: New Holland Publishers, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

ill, Frenck Hal, ed. Middle Ages. Mahwah, N.J: Troll Associates, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

A, Guerber H. Middle Ages. London: Senate, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Macaulay, Thomas Babington Macaulay. Dangerous ages. London: Methuen, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Bewick, Pauline. Seven ages. Edited by Hayes Alan 1970-. Galway: Arlen House, 2006.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Dangerous ages. New York: Carroll & Graf, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Middle Ages. London: Studio Editions, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

1970-, Hayes Alan, ed. Seven ages. Galway: Arlen House, 2005.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "AGWs"

1

Oberreuter, Heinrich. "„Quidquid agis prudenter agas et respice finem.“." In Politik ist Dienst, 277–80. Köln: Böhlau Verlag, 2012. http://dx.doi.org/10.7788/boehlau.9783412215804.277.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hasson, Brian F., Charlie Ma, Lu Wang, David E. Wazer, Jay E. Reiff, Jay E. Reiff, Brandon J. Fisher, et al. "AGES." In Encyclopedia of Radiation Oncology, 7. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-540-85516-3_731.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Berger, Bruce. "There's No Ages Like Dark Ages." In Time Warped, 73–92. New York: Routledge, 2022. http://dx.doi.org/10.4324/9781003239123-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Ziolkowski, Jan M. "Middle Ages." In A Companion to the Classical Tradition, 15–29. Oxford, UK: Blackwell Publishing Ltd, 2007. http://dx.doi.org/10.1002/9780470996775.ch3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Vehlow, Katja. "Middle Ages." In The Routledge Companion to Jewish History and Historiography, 144–54. Milton Park, Abingdon, Oxon; New York, NY: Routledge, [2019]: Routledge, 2018. http://dx.doi.org/10.4324/9780429458927-12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Drace-Francis, Alex. "Middle Ages." In European Identity, 9–21. London: Macmillan Education UK, 2013. http://dx.doi.org/10.1007/978-1-137-36819-5_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Blair, Catherine. "Changing Ages." In Securing Pension Provision, 22–32. London: Palgrave Macmillan UK, 2014. http://dx.doi.org/10.1057/9781137453976_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Abbott, G. F. "Middle Ages." In Israel in Europe, 62–82. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003325796-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Hebbecker, Anne-Katrin. "AGs." In Pfiffige Offene Ganztagsschulen, 11–67. Herbolzheim: Centaurus Verlag & Media, 2012. http://dx.doi.org/10.1007/978-3-86226-899-3_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Scharnagl, Hubert, Winfried März, Markus Böhm, Thomas A. Luger, Federico Fracassi, Alessia Diana, Thomas Frieling, et al. "AGS." In Encyclopedia of Molecular Mechanisms of Disease, 49. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-29676-8_8581.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "AGWs"

1

Bore, Nelson, Andrew Kinai, Peninah Waweru, Isaac Wambugu, Juliet Mutahi, Everlyne Kemunto, Reginald Bryant, and Komminist Weldemariam. "AGWS: Blockchain-enabled Small-scale Farm Digitization." In 2020 IEEE International Conference on Blockchain and Cryptocurrency (ICBC). IEEE, 2020. http://dx.doi.org/10.1109/icbc48266.2020.9169450.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Swenson, Gary, Jing Tang, Farzad Kamalabadi, and Steve Franke. "Methods of deducing intrinsic measurements of high frequency atmospheric gravity waves (AGWs)." In Remote Sensing, edited by Klaus Schäfer, Adolfo Comerón, James R. Slusser, Richard H. Picard, Michel R. Carleer, and Nicolaos I. Sifakis. SPIE, 2005. http://dx.doi.org/10.1117/12.626144.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Gronwall, Caryl. "The star formation rate density of the local universe from the KPNO international spectroscopic survey." In AFTER THE DARK AGES. ASCE, 1999. http://dx.doi.org/10.1063/1.58618.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Dickinson, Mark. "A complete NICMOS map of the Hubble Deep Field North." In AFTER THE DARK AGES. ASCE, 1999. http://dx.doi.org/10.1063/1.58645.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Haiman, Z., and A. Loeb. "Empirical constraints on the first stars and quasars." In AFTER THE DARK AGES. ASCE, 1999. http://dx.doi.org/10.1063/1.58620.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Dwek, E., and R. G. Arendt. "A tentative detection of the cosmic infrared background at 3.5 μm from." In AFTER THE DARK AGES. ASCE, 1999. http://dx.doi.org/10.1063/1.58621.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Wootten, Alwyn, and Min S. Yun. "Imaging distant dust and gas: The Millimeter Array." In AFTER THE DARK AGES. ASCE, 1999. http://dx.doi.org/10.1063/1.58651.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Haarsma, Deborah B., and R. Bruce Partridge. "Implications of faint radio sources for star formation history." In AFTER THE DARK AGES. ASCE, 1999. http://dx.doi.org/10.1063/1.58619.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Windhorst, Rogier A., Seth H. Cohen, and Ian Waddington. "Clues from deep HST images to galaxy formation and the role of mergers." In AFTER THE DARK AGES. ASCE, 1999. http://dx.doi.org/10.1063/1.58602.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Bullock, J. S., T. S. Kolatt, R. S. Somerville, Y. Sigad, A. V. Kravtsov, A. A. Klypin, J. R. Primack, and A. Dekel. "Lyman Break Galaxies as collision-driven starbursts." In AFTER THE DARK AGES. ASCE, 1999. http://dx.doi.org/10.1063/1.58603.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "AGWs"

1

Ahrens L., M. Blaskiewicz, C. Gardner, and W. van Asselt. AGS Stopbands. Office of Scientific and Technical Information (OSTI), August 1994. http://dx.doi.org/10.2172/1132394.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Luccio A. and T. Roser. Matching the Cold AGS Snake to the AGS Lattice. Office of Scientific and Technical Information (OSTI), September 2004. http://dx.doi.org/10.2172/1061759.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Abraham, Katharine G., Brad Hershbein, and Susan Houseman. Contract Work at Older Ages. W.E. Upjohn Institute, March 2020. http://dx.doi.org/10.17848/wp20-323.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Eichengreen, Barry, Asmaa El-Ganainy, Rui Esteves, and Kris James Mitchener. Public Debt Through the Ages. Cambridge, MA: National Bureau of Economic Research, January 2019. http://dx.doi.org/10.3386/w25494.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Abraham, Katharine, Brad Hershbein, and Susan Houseman. Contract Work at Older Ages. Cambridge, MA: National Bureau of Economic Research, January 2020. http://dx.doi.org/10.3386/w26612.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Wei, Jie. AGS Machine Studies. Office of Scientific and Technical Information (OSTI), October 1994. http://dx.doi.org/10.2172/1119436.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Brown K. A., J. W. Glenn, A. Musolino, A. Stevens, and R. Thern. AGS Shield Tests. Office of Scientific and Technical Information (OSTI), November 1988. http://dx.doi.org/10.2172/1131575.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Blaskiewicz M. and J. W. Glenn. AGS Stopbands II. Office of Scientific and Technical Information (OSTI), May 1995. http://dx.doi.org/10.2172/1132406.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Blaskiewicz M. and J. W. Glenn. AGS Stopbands III. Office of Scientific and Technical Information (OSTI), May 1995. http://dx.doi.org/10.2172/1132408.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Menga P., L. Ahrens, and R. Schroeder. AGS BPM Tests. Office of Scientific and Technical Information (OSTI), August 2007. http://dx.doi.org/10.2172/1061879.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'AGWs' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography