97,384 research outputs found
Joshua Davis: Author of Spare Parts
No full textCitation: K-State First (2016). Joshua Davis: Author of Spare Parts [Flier]. Manhattan, Kansas: K-State First.Flyer advertising Joshua Davis's author talk at Kansas State University
Steven Johnson Author Talk Poster
No full textK-State Book NetworkA poster advertising an author talk by Steven Johnson at Kansas State University on September 3, 2014. Steven Johnson's book "The Ghost Map" was the 2014-2015 common book
Bootstrapping Lagrangian perturbation theory for the large scale structure
No full textWe develop a model-independent approach to Lagrangian perturbation theory for the large scale structure of the universe. We focus on the displacement field for dark matter particles, and derive its most general structure without assuming a specific form for the equations of motion, but implementing a set of general requirements based on symmetry principles and consistency with the perturbative approach. We present explicit results up to sixth order, and provide an algorithmic procedure for arbitrarily higher orders. The resulting displacement field is expressed as an expansion in operators built up from the linear density field, with time-dependent coefficients that can be obtained, in a specific model, by solving ordinary differential equations. The derived structure is general enough to cover a wide spectrum of models beyond ΛCDM, including modified gravity scenarios of the Horndeski type and models with multiple dark matter species. This work is a first step towards a complete model-independent Lagrangian forward model, to be employed in cosmological analyses with power spectrum and bispectrum, other summary statistics, and field-level inference
Wide-angle effects in the galaxy bispectrum
No full textPrimordial non-Gaussianities (PNG) leave unique signatures in the bispectrum of the large-scale structure. With upcoming galaxy surveys set to improve PNG constraints by at least one order of magnitude, it is important to account for any potential contamination. In our work we show how to include wide-angle effects into the 3-dimensional observed galaxy bispectrum. We compute the leading wide-angle corrections to the monopole, finding that they could mimic local PNG with an amplitude of f = (0.1). We also compute the dipole induced by wide-angle effects, whose amplitude is a few-percent of the flat-sky monopole.We estimate that wide-angle effects in the monopole can be safely neglected for survey volumes of the order of 8 Gpch, while the dipole can start being detected from surveys probing volumes larger than 50 Gpch.Our formalism can be readily adapted to realistic survey geometries and to include relativistic effects, which may become relevant at high redshifts.Primordial non-Gaussianities (PNG) leave unique signatures in the bispectrum of the large-scale structure. With upcoming galaxy surveys set to improve PNG constraints by at least one order of magnitude, it is important to account for any potential contamination. In our work we show how to include wide-angle effects into the 3-dimensional observed galaxy bispectrum. We compute the leading wide-angle corrections to the monopole, finding that they could mimic local PNG with an amplitude of . We also compute the dipole induced by wide-angle effects, whose amplitude is a few-percent of the flat-sky monopole. We estimate that wide-angle effects in the monopole can be safely neglected for survey volumes of the order of , while the dipole can start being detected from surveys probing volumes larger than . Our formalism can be readily adapted to realistic survey geometries and to include relativistic effects, which may become relevant at high redshifts
Pengujian Kadar Phospat, COD dan pH pada Air Permukaan di Kelurahan Pardede Onan - Balige
No full textAir badan air berasal dari air permukaan yang terdapat di permukaan tanah, antara lain sungai dan danau. Sungai dan danau merupakan air permukaan yang paling sering tercemar akibat aktivitas masyarakat.Telah dilakukan pengujian kadar phospat, COD dan nilai pH pada Air Permukaan di Kelurahan Pardede Onan – Balige khususnya untuk air sungai dan air danau. Analisa kadar phospat dan nilai COD ditentukan dengan menggunakan alat Spektrofotometer, dan untuk nilai pH ditentukan dengan menggunakan alat pH meter. Hasil pengujian yang dilakukan terhadap sampel dengan parameter phospat, COD dan pH pada sampel berturut-turut yaitu pada sampel 3649/K/ABA/20/06/2019 dengan kadar phospat 0,52 mg/l, COD 156 mg/l dan pH 6,64. Untuk sampel 3650/K/ABA/20/06/2019 dengan kadar phospat 2,06 mg/l, COD 183 mg/l dan pH 6,78. Pada sampel 3651/K/ABA/20/06/2019 dengan kadar phospat 2,80 mg/l, COD 210 mg/l dan pH 7,10. Berdasarkan hasil pengujian Air Permukaan di Kelurahan Pardede Onan - Balige dengan parameter pengujian kadar phospat dan COD tidak memenuhi nilai ambang batas dari PP RI NO 82 TAHUN 2001 Tentang Persyaratan Pengolahan Kualitas Air dan Pengendalian Pencemaran Air Presiden Republik Indonesia, sedangkan untuk nilai pH memenuhi syarat nilai pencemaran air dari PP RI NO 82 TAHUN 2001 Tentang Persyaratan Pengolahan Kualitas Air dan Pengendalian Pencemaran Air Presiden Republik Indonesia.Water body water from the surface of the water that is on the surface of the ground, between rivers and other lakes. Rivers and lakes are surface water which is most often polluted due to community activities. Phosphate, COD and pH values on the Air Surface have been tested in Pardede Onan Village - specifically for river water and lake water. Analysis of phosphate levels and COD values were determined using a spectrophotometer, and for pH values determined using a pH meter tool. The results of the tests conducted on samples with phosphate, COD and pH parameters in the joint-sample were in the sample 3649 / K / ABA / 20/06/2019 with phosphate levels of 0.52 mg / l, COD 156 mg / l and pH 6 , 64. For samples of 3650 / K / ABA / 20/06/2019 with phosphate levels of 2.06 mg / l, COD 183 mg / l and pH 6.78. In the sample 3651 / K / ABA / 20/06/2019 with phosphate levels of 2.80 mg / l, COD 210 mg / l and pH 7.10. Based on the results of Surface testing in Pardede Onan - Balige Urban Village with testing parameters of phosphate and COD levels did not meet the threshold value of PP RI NO 82 of 2001 concerning Water Quality Processing Needs and Air Pollution Control of the President of the Republic of Indonesia for the pH value of water pollution from PP RI NO 82 of 2001 concerning the Need for Quality of Water Treatment and Water Pollution Control of the President of the Republic of Indonesia40 HalamanKertas Karya Diplom
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Expanding “Communities and Collections” in the K-State Research Exchange (K-REx) to benefit the K-State Community and Beyond
No full textKansas State University has used its institutional repository, the K-State Research Exchange (K-REx), to store and share its first year experience program, K-State First, and notably its common reading program, K-State First Book. We have done so with the aim that the accessibility and preservation of these documents ensures program stability, promotes engagement with first year programming, and provides the ability to foster growth,educational opportunities, and community building outside of K-State. Moving away from research concentrated repositories and taking a more holistic approach to scholarship, especially when realizing the pedagogical significance of collaborative campus programming, institutions can showcase, discover, preserve, and grow programs that shape campus communities and engagement.
This session will provide an overview of K-REx and spotlight the digital archive of the university’s first year experience program and common reading program, K-State First Book. We will discuss the benefits and challenges to expanding the purview of your repositories. We talkthrough the types of materials we decide to host in our repository and why we share what we do. We will also provide recommendations on new ways to evaluate what belongs in institutional repositories and how this diversity can benefit your program, your institution, the community, and others
Ready Player One Program Event Poster
No full textK-State Book NetworkA poster advertising an author talk by Ernest Cline at Kansas State University on October 10, 2013. Ernest Cline's book "Ready Player One" was selected as the 2013-2014 common book
Depolarization and decreased surface expression of K+ channels contribute to NSAID-inhibition of intestinal restitution
No full textNon-steroidal anti-inflammatory drugs (NSAIDs) contribute to gastrointestinal ulcer formation by inhibiting epithelial cell migration and mucosal restitution; however, the drug-affected signaling pathways are poorly defined. We investigated whether NSAID inhibition of intestinal epithelial migration is associated with depletion of intracellular polyamines, depolarization of membrane potential (Em) and altered surface expression of K+ channels. Epithelial cell migration in response to the wounding of confluent IEC-6 and IEC-Cdx2 monolayers was reduced by indomethacin (100μM), phenylbutazone (100μM) and NS-398 (100μM) but not by SC-560 (1μM). NSAID-inhibition of intestinal cell migration was not associated with depletion of intracellular polyamines. Treatment of IEC-6 and IEC-Cdx2 cells with indomethacin, phenylbutazone and NS-398 induced significant depolarization of Em, whereas treatment with SC-560 had no effect on Em. The Em of IEC-Cdx2 cells was: −38.5±1.8mV under control conditions; −35.9±1.6mV after treatment with SC-560; −18.8±1.2mV after treatment with indomethacin; and −23.7±1.4mV after treatment with NS-398. Whereas SC-560 had no significant effects on the total cellular expression of Kv1.4 channel protein, indomethacin and NS-398 decreased not only the total cellular expression of Kv1.4, but also the cell surface expression of both Kv1.4 and Kv1.6 channel subunits in IEC-Cdx2. Both Kv1.4 and Kv1.6 channel proteins were immunoprecipitated by Kv1.4 antibody from IEC-Cdx2 lysates, indicating that these subunits co-assemble to form heteromeric Kv channels. These results suggest that NSAID inhibition of epithelial cell migration is independent of polyamine-depletion, and is associated with depolarization of Em and decreased surface expression of heteromeric Kv1 channels.ID: S0006295207001931; M3: Article; Accession Number: S0006295207001931; Author: L.C. Freeman (b); Author: D.F. Narvaez (a); Author: A. McCoy (a); Author: F.B. von Stein (c); Author: S. Young (b); Author: K. Silver (a); Author: S. Ganta (b); Author: D. Koch (b); Author: R. Hunter (b); Author: R.F. Gilmour (c); Author: J.D. Lillich (a, ⁎); Affiliation: Department of Clinical Sciences, Kansas State University, Manhattan, KS 66506, United States; Affiliation: Department of Anatomy and Physiology, Kansas State University, Manhattan, KS 66506, United States; Affiliation: Department of Biomedical Sciences, Cornell University, Ithaca, NY 14853, United States; Keyword: Non-steroidal anti-inflammatory drugs; Keyword: Intestinal epithelial cells; Keyword: Membrane potential; Keyword: Potassium channels; Number of Pages: 12; Language: English;Source type: Electronic(1)http://search.ebscohost.com/login.aspx?direct=true&db=edselp&AN=S0006295207001931&site=eds-live&scope=sit
- …
