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    <description>recent bookmarks from Knusper2000</description>
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    <title>An advanced scattered moonlight model for Cerro Paranal | A&amp;A</title>
    <dc:date>2014-03-20T16:06:02+00:00</dc:date>
    <link>http://www.aanda.org/articles/aa/full_html/2013/12/aa22433-13/aa22433-13.html</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[The largest natural source of light at night is the Moon, and it is the major contributor to the astronomical sky background. Being able to accurately predict the sky background, including scattered moonlight is important for scheduling astronomical observations. We have developed an improved scattered moonlight model, in which the components are computed with a better physical understanding as opposed to the simple empirical fit in the frequently used photometric model of Krisciunas & Schaefer (1991, PASP, 103, 1033). Our spectroscopic model can better trace the spectral trends of scattered moonlight for any position of the Moon and target observation. This is the first scattered moonlight model that we know of which is this physical and versatile. We have incorporated an observed solar spectrum, accurate lunar albedo fit, and elaborate scattering and absorption calculations that include scattering off of molecules and aerosols. It was designed for Cerro Paranal, but can be modified for any location with known atmospheric properties. Throughout the optical range, the uncertainty is less than 20%. This advanced scattered moonlight model can predict the amount of scattered moonlight for any given geometry of the Moon and target, and lunar phase for the entire optical spectrum.]]></description>
<dc:subject>astronomy observatory paper reading</dc:subject>
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<item rdf:about="http://iopscience.iop.org/0004-637X/772/1/3">
    <title>The Angular Distribution of Lyα Resonant Photons Emerging from an Optically Thick Medium - Abstract - The Astrophysical Journal - IOPscience</title>
    <dc:date>2013-06-28T16:31:16+00:00</dc:date>
    <link>http://iopscience.iop.org/0004-637X/772/1/3</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[We investigate the angular distribution of Lyα photons scattering or emerging from an optically thick medium. Since the evolution of specific intensity I in frequency space and angular space are coupled with each other, we first develop the WENO numerical solver to find the time-dependent solutions of the integro-differential equation of I in frequency and angular space simultaneously. We first show that the solutions with the Eddington approximation, which assume that I is linearly dependent on the angular variable μ, yield similar frequency profiles of the photon flux as those without the Eddington approximation. However, the solutions of the μ distribution evolution are significantly different from those given by the Eddington approximation. First, the angular distribution of I is found to be substantially dependent on the frequency of the photons. For photons with the resonant frequency ν0, I contains only a linear term of μ. For photons with frequencies at the double peaks of the flux, the μ-distribution is highly anisotropic; most photons are emitted radially forward. Moreover, either at ν0 or at the double peaks, the μ distributions actually are independent of the initial μ distribution of photons of the source. This is because the photons with frequencies either at ν0 or the double peaks undergo the process of forgetting their initial conditions due to resonant scattering. We also show that the optically thick medium is a collimator of photons at the double peaks. Photons from the double peaks form a forward beam with a very small opening angle.]]></description>
<dc:subject>paper work math astronomy physics</dc:subject>
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<item rdf:about="http://www.nature.com/nature/journal/v487/n7407/full/nature11256.html">
    <title>High velocity dispersion in a rare grand-design spiral galaxy at redshift z = 2.18 : Nature : Nature Publishing Group</title>
    <dc:date>2013-06-25T22:39:49+00:00</dc:date>
    <link>http://www.nature.com/nature/journal/v487/n7407/full/nature11256.html</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[So-called grand-design spiral galaxies feature prominent and well-defined spiral arms, rather than the arguably less striking multi-arm flocculent spiral structure. Grand-design spiral galaxies are relatively common in the local Universe, but uncommon at redshifts of z > 2, prompting suggestions that conditions in the early Universe favoured the formation of less well-defined clumpy galaxies. But this paper reports observations of a distant grand design spiral galaxy Q2343-BX442 at z = 2.18 that show that the disk is dynamically hot — a condition that was thought to favour clumpy structures. The data indicate that the galaxy is a thick disk undergoing a minor merger with another system, and it may be this merger that is driving the formation of short-lived spiral structure.]]></description>
<dc:subject>work astronomy paper</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:8416e117d46f/</dc:identifier>
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<item rdf:about="http://esoads.eso.org/abs/1991PASP..103.1033K">
    <title>A model of the brightness of moonlight</title>
    <dc:date>2013-06-04T12:50:13+00:00</dc:date>
    <link>http://esoads.eso.org/abs/1991PASP..103.1033K</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[In this paper, measurements of the sky brightness from the 2800-m level of Mauna Kea are reported. In addition, a model is presented for predicting the moonlight as a function of the moon's phase, the zenith distance of the moon, the zenith distance of the sky position, the angular separation of the moon and sky position, and the local extinction coefficient. The model equations can be quickly calculated on a pocket calculator. A comparison of the model with lunar data and with some Russian solar data shows the accuracy of the predictions to range from 8 percent to 23 percent. ]]></description>
<dc:subject>moon astronomy paper science</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:d5398282dd20/</dc:identifier>
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<item rdf:about="http://arxiv.org/abs/1305.4842">
    <title>[1305.4842] Autonomous Spacecraft Navigation With Pulsars</title>
    <dc:date>2013-06-03T21:10:25+00:00</dc:date>
    <link>http://arxiv.org/abs/1305.4842</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[ An external reference system suitable for deep space navigation can be defined by fast spinning and strongly magnetized neutron stars, called pulsars. Their beamed periodic signals have timing stabilities comparable to atomic clocks and provide characteristic temporal signatures that can be used as natural navigation beacons, quite similar to the use of GPS satellites for navigation on Earth. By comparing pulse arrival times measured on-board a spacecraft with predicted pulse arrivals at a reference location, the spacecraft position can be determined autonomously and with high accuracy everywhere in the solar system and beyond. The unique properties of pulsars make clear already today that such a navigation system will have its application in future astronautics. In this paper we describe the basic principle of spacecraft navigation using pulsars and report on the current development status of this novel technology. ]]></description>
<dc:subject>astronomy paper arxiv space science</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:3ae608114d6b/</dc:identifier>
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<item rdf:about="http://www.generatedpaper.com/">
    <title>choose from over 40 templates — generatedpaper.com: free printable papers for the daily use</title>
    <dc:date>2013-04-27T15:09:46+00:00</dc:date>
    <link>http://www.generatedpaper.com/</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Printable Papers.

free printable papers for the daily use]]></description>
<dc:subject>print paper download useful</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:14f95c376cb7/</dc:identifier>
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<item rdf:about="http://www.aanda.org/index.php?option=com_article&amp;access=standard&amp;Itemid=129&amp;url=/articles/aa/abs/2010/15/aa15236-10/aa15236-10.html">
    <title>Predicted UV properties of very metal-poor starburst galaxies | A&amp;A</title>
    <dc:date>2013-04-09T18:31:38+00:00</dc:date>
    <link>http://www.aanda.org/index.php?option=com_article&amp;access=standard&amp;Itemid=129&amp;url=/articles/aa/abs/2010/15/aa15236-10/aa15236-10.html</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Aims. We study the expected properties of starburst galaxies in order to provide the point of reference for interpretation of high-z galaxy surveys and of very metal-poor galaxies. We concentrate mainly on the UV characteristics such as the ionizing spectra, the UV continuum, the Lyα and He ii λ1640 line and two-photon continuum emission.

Methods. We use evolutionary synthesis models covering metallicities from Pop III to solar and a wide range of IMFs. We also combine the synthetic SEDs with the CLOUDY photoionization code for more accurate predictions of nebular emission, and to study possible departures from case B assumed in the synthesis models.

Results. The ionizing fluxes, UV continuum properties, and predicted Lyα and He ii λ1640 line strengths are presented for synthesis models covering a wider range of parameter space than our earlier calculations. Strong departures from case B predictions are obtained for Lyα and 2γ continuum at low metallicities. At low nebular densities both are shown to be enhanced proportionally to the mean energy carried by the Lyman continuum photons emitted by the ionizing source. Larger Lyα equivalent widths are therefore predicted at low metallicity. The He ii λ1640 line can be weaker than case B predicts (in terms of flux as well as the equivalent width) due to its ionization parameter dependence and to the enhanced underlying 2γ continuum.

Conclusions. Our results have implications for the interpretation of star-forming metal-poor and/or high redshift galaxies, for galaxies among the Lyα emitters (LAE) and Lyman Break galaxy (LBG) populations, and for searches of Population III stars in the distant Universe.]]></description>
<dc:subject>work paper reading data simulation</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:ce3a875c0326/</dc:identifier>
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<item rdf:about="http://arxiv.org/abs/1303.5961">
    <title>[1303.5961] Paper-and-pencil cosmological calculator</title>
    <dc:date>2013-03-28T12:43:03+00:00</dc:date>
    <link>http://arxiv.org/abs/1303.5961</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[The paper-and-pencil calculator is a cosmological nomogram which allows to find relations between redshift, distance, age of the Universe, physical and angular sizes, luminosity and apparent magnitude for the standard cosmological model with parameters from the Planck mission. ]]></description>
<dc:subject>astronomy work teaching cosmology science paper arxiv</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:17f41db12f0f/</dc:identifier>
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<item rdf:about="http://de.arxiv.org/abs/1303.4676">
    <title>[1303.4676] Universal Doomsday: Analyzing Our Prospects for Survival</title>
    <dc:date>2013-03-20T15:06:22+00:00</dc:date>
    <link>http://de.arxiv.org/abs/1303.4676</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Given a sufficiently large universe, numerous civilizations almost surely exist. Some of these civilizations will be short-lived and die out relatively early in their development, i.e., before having the chance to spread to other planets. Others will be long-lived, potentially colonizing their galaxy and becoming enormous in size. What fraction of civilizations in the universe are long-lived? The "universal doomsday" argument states that long-lived civilizations must be rare because if they were not, we should find ourselves living in one. Furthermore, because long-lived civilizations are rare, our civilization's prospects for long-term survival are poor. Here, we develop the formalism required for universal doomsday calculations and show that while the argument has some force, our future is not as gloomy as the traditional doomsday argument would suggest, at least when the number of early existential threats is small. ]]></description>
<dc:subject>paper reading physics science sciencefiction</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
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<item rdf:about="http://ajp.aapt.org/resource/1/ajpias/v81/i2/p88_s1?isAuthorized=no">
    <title>Why do bubbles in Guinness sink? - American Journal of Physics</title>
    <dc:date>2013-01-29T17:39:13+00:00</dc:date>
    <link>http://ajp.aapt.org/resource/1/ajpias/v81/i2/p88_s1?isAuthorized=no</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Stout beers show the counter-intuitive phenomena of sinking bubbles, while the beer is settling. Previous research suggests that this phenomenon is due to the small size of the bubbles in these beers and the presence of a circulatory current, directed downwards near the side of the wall and upwards in the interior of the glass. The mechanism by which such a circulation is established and the conditions under which it will occur has not been clarified. In this paper, we use simulations and experiments to demonstrate that the flow in a glass of stout beer depends on the shape of the glass. If it narrows downwards (as the traditional stout glass, the pint, does), the flow is directed downwards near the wall and upwards in the interior and sinking bubbles will be observed. If the container widens downwards, the flow is opposite to that described above and only rising bubbles will be seen.]]></description>
<dc:subject>physics paper</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:b4eb08bb5168/</dc:identifier>
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<item rdf:about="http://arxiv.org/abs/1212.5608">
    <title>[1212.5608] A Theological Argument for an Everett Multiverse</title>
    <dc:date>2013-01-25T21:05:06+00:00</dc:date>
    <link>http://arxiv.org/abs/1212.5608</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Science looks for the simplest hypotheses to explain observations. Starting with the simple assumption that {em the actual world is the best possible world}, I sketch an {it Optimal Argument for the Existence of God}, that the sufferings in our universe would not be consistent with its being alone the best possible world, but the total world could be the best possible if it includes an omnipotent, omniscient, omnibenevolent God who experiences great value in creating and knowing a universe with great mathematical elegance, even though such a universe has suffering.
God seems loathe to violate elegant laws of physics that He has chosen to use in His creation, such as Maxwell's equations for electromagnetism or Einstein's equations of general relativity for gravity within their classical domains of applicability, even if their violation could greatly reduce human suffering (e.g., from falls). If indeed God is similarly loathe to violate quantum unitarity (though such violations by judicious collapses of the wavefunction could greatly reduce human suffering by always choosing only favorable outcomes), the resulting unitary evolution would lead to an Everett multiverse of `many worlds', meaning many different quasiclassical histories beyond the quasiclassical history that each of us can observe over his or her lifetime. This is a theological argument for one reason why God might prefer to create a multiverse much broader than what one normally thinks of for a history of the universe. ]]></description>
<dc:subject>arxiv reading paper science physics</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:8c6941d03b9c/</dc:identifier>
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<item rdf:about="http://arxiv.org/abs/0903.3384">
    <title>[0903.3384] Low-Energy Astrophysics: Stimulating the Reduction of Energy Consumption in the Next Decade</title>
    <dc:date>2012-10-30T20:03:18+00:00</dc:date>
    <link>http://arxiv.org/abs/0903.3384</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[In this paper we address the consumption of energy by astronomers while performing their professional duties. Although we find that astronomy uses a negligible fraction of the US energy budget, the rate at which energy is consumed by an average astronomer is similar to that of a typical high-flying businessperson. We review some of the ways in which astronomers are already acting to reduce their energy consumption. In the coming decades, all citizens will have to reduce their energy consumption to conserve fossil fuel reserves and to help avert a potentially catastrophic change in the Earth's climate. The challenges are the same for astronomers as they are for everyone: decreasing the distances we travel and investing in energy-efficient infrastructure. The high profile of astronomy in the media, and the great public interest in our field, can play a role in promoting energy-awareness to the wider population. Our specific recommendations are therefore to 1) reduce travel when possible, through efficient meeting organization, and by investing in high-bandwidth video conference facilities and virtual-world software, 2) create energy-efficient observatories, computing centers and workplaces, powered by sustainable energy resources, and 3) actively publicize these pursuits. ]]></description>
<dc:subject>arxiv paper astronomy environment</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:8c21d2aeb389/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:arxiv"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astronomy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:environment"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.nature.com/nature/journal/vaop/ncurrent/full/nature11572.html">
    <title>An Earth-mass planet orbiting [agr] Centauri B : Nature : Nature Publishing Group</title>
    <dc:date>2012-10-25T21:31:11+00:00</dc:date>
    <link>http://www.nature.com/nature/journal/vaop/ncurrent/full/nature11572.html</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Exoplanets down to the size of Earth have been found, but not in the habitable zone—that is, at a distance from the parent star at which water, if present, would be liquid. There are planets in the habitable zone of stars cooler than our Sun, but for reasons such as tidal locking and strong stellar activity, they are unlikely to harbour water–carbon life as we know it. The detection of a habitable Earth-mass planet orbiting a star similar to our Sun is extremely difficult, because such a signal is overwhelmed by stellar perturbations. Here we report the detection of an Earth-mass planet orbiting our neighbour star α Centauri B, a member of the closest stellar system to the Sun. The planet has an orbital period of 3.236 days and is about 0.04 astronomical units from the star (one astronomical unit is the Earth–Sun distance).
]]></description>
<dc:subject>research astronomy paper</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:dbc236570266/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:research"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astronomy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.aanda.org/index.php?option=com_article&amp;access=doi&amp;doi=10.1051/0004-6361/201220102&amp;Itemid=129">
    <title>PyCosmic: a robust method to detect cosmics in CALIFA and other fiber-fed integral-field spectroscopy datasets | A&amp;A</title>
    <dc:date>2012-09-29T19:45:45+00:00</dc:date>
    <link>http://www.aanda.org/index.php?option=com_article&amp;access=doi&amp;doi=10.1051/0004-6361/201220102&amp;Itemid=129</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[We developed a novel algorithm, PyCosmic, which combines the edge-detection algorithm of L.A.Cosmic with a point-spread function convolution scheme. We generated mock data to compute the efficiency of different algorithms for a wide range of characteristic fiber-fed IFS datasets using the Potsdam Multi-Aperture Spectrophotometer (PMAS) and the VIsible MultiObject Spectrograph (VIMOS) IFS instruments as representative cases.]]></description>
<dc:subject>work python astronomy paper</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:a99cce0167b2/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:work"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:python"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astronomy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://jop.sagepub.com/content/early/2012/03/08/0269881112439253.abstract">
    <title>Lysergic acid diethylamide (LSD) for alcoholism: meta-analysis of randomized controlled trials</title>
    <dc:date>2012-03-23T16:33:01+00:00</dc:date>
    <link>http://jop.sagepub.com/content/early/2012/03/08/0269881112439253.abstract</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Assessments of lysergic acid diethylamide (LSD) in the treatment of alcoholism have not been based on quantitative meta-analysis. Hence, we performed a meta-analysis of randomized controlled trials in order to evaluate the clinical efficacy of LSD in the treatment of alcoholism. Two reviewers independently extracted the data, pooling the effects using odds ratios (ORs) by a generic inverse variance, random effects model. We identified six eligible trials, including 536 participants. There was evidence for a beneficial effect of LSD on alcohol misuse (OR, 1.96; 95% CI, 1.36–2.84; p = 0.0003). Between-trial heterogeneity for the treatment effects was negligible (I² = 0%). Secondary outcomes, risk of bias and limitations are discussed. A single dose of LSD, in the context of various alcoholism treatment programs, is associated with a decrease in alcohol misuse. ]]></description>
<dc:subject>paper science medical acid</dc:subject>
<dc:source>https://pinboard.in/</dc:source>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:02f44f3c131c/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:medical"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:acid"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://de.arxiv.org/abs/1107.5168">
    <title>[1107.5168] Hubble's law and faster than light expansion speeds</title>
    <dc:date>2011-08-11T12:25:23+00:00</dc:date>
    <link>http://de.arxiv.org/abs/1107.5168</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Naively applying Hubble's law to a sufficiently distant object gives a receding velocity larger than the speed of light. By discussing a very similar situation in special relativity, we argue that Hubble's law is meaningful only for nearby objects with non-relativistic receding speeds. To support this claim, we note that in a curved spacetime manifold it is not possible to directly compare tangent vectors at different points, and thus there is no natural definition of relative velocity between two spatially separated objects in cosmology. We clarify the geometrical meaning of the Hubble's receding speed v by showing that in a Friedmann-Robertson-Walker spacetime if the four-velocity vector of a comoving object is parallel-transported along the straight line in flat comoving coordinates to the position of a second comoving object, then v/c actually becomes the rapidity of the local Lorentz transformation, which maps the fixed four-velocity vector to the transported one.
]]></description>
<dc:subject>paper reading physics work</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:de2e1af3e367/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:reading"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:physics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:work"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1102.3332">
    <title>SETI: The transmission rate of radio communication and the signal's detection (P.A. Fridman)</title>
    <dc:date>2011-03-04T17:06:15+00:00</dc:date>
    <link>http://arxiv.org/abs/1102.3332</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[The transmission rate of communication between radio telescopes on Earth and extraterrestrial intelligence (ETI) has been calculated up to the distances 1000 light years. Phase-shift-keying (PSK) and frequency-shift keying (FSK) modulation schemes are both considered here. It has been demonstrated that M-ary FSK is advantageous in terms of energy. Narrow-band pulses scattered over the spectrum can be the probable signals of ETI and modern SETI spectrum analyzers are well suited to searching for these types of signals. Such signals can be detected using the Hough transform which is a dedicated tool for detecting patterns on an image. The time-frequency plane representing the power output of the spectrum analyzer during the search for ETI gives an image from which the Hough transform (HT) can detect signal patterns with frequency drift.
]]></description>
<dc:subject>astronomy reading paper</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:d6817ff984bb/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astronomy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:reading"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/1002.3966">
    <title>[1002.3966] Why all these prejudices against a constant?</title>
    <dc:date>2010-03-02T23:19:53+00:00</dc:date>
    <link>http://arxiv.org/abs/1002.3966</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[The expansion of the observed universe appears to be accelerating. A simple explanation of this phenomenon is provided by the non-vanishing of the cosmological constant in the Einstein equations. Arguments are commonly presented to the effect that this simple explanation is not viable or not sufficient, and therefore we are facing the "great mystery" of the "nature of a dark energy". We argue that these arguments are unconvincing, or ill-founded.
]]></description>
<dc:subject>article cosmology astronomy paper</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:04af4a97c5e6/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:article"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:cosmology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astronomy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/0909.1551">
    <title>The Adventures of the Rocketeer: Accelerated Motion Under the Influence of Expanding Space</title>
    <dc:date>2009-09-10T10:37:22+00:00</dc:date>
    <link>http://arxiv.org/abs/0909.1551</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[tIt is well known that interstellar travel is bounded by the finite speed of light, but on very large scales any rocketeer would also need to consider the influence of cosmological expansion on their journey. This paper examines accelerated journeys within the framework of Friedmann- Lemaitre-Robertson-Walker universes, illustrating how the duration of a fixed acceleration sharply divides exploration over interstellar and intergalactic distances. Furthermore, we show how the universal expansion increases the difficulty of intergalactic navigation, with small uncertainties in cosmological parameters resulting in significantly large deviations. This paper also shows that, contrary to simplistic ideas, the motion of any rocketeer is indistinguishable from Newtonian gravity if the acceleration is kept small.
]]></description>
<dc:subject>science cosmology theory paper reading</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:d89bfcbc1fec/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:cosmology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:theory"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:reading"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/astro-ph/9905116">
    <title>Distance measures in cosmology</title>
    <dc:date>2009-09-03T12:12:50+00:00</dc:date>
    <link>http://arxiv.org/abs/astro-ph/9905116</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Formulae for the line-of-sight and transverse comoving distances, proper motion distance, angular diameter distance, luminosity distance, k-correction, distance modulus, comoving volume, lookback time, age, and object intersection probability are all given, some with justifications. Some attempt is made to rationalize disparate terminologies, or at least abuse bad usage.
]]></description>
<dc:subject>cosmology reading paper astronomy work science</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:6c024499fcea/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:cosmology"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:reading"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astronomy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:work"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:science"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/0908.3904">
    <title>Automatic morphological classification of galaxy images</title>
    <dc:date>2009-08-30T10:32:07+00:00</dc:date>
    <link>http://arxiv.org/abs/0908.3904</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[We describe an image analysis supervised learning algorithm that can automatically classify galaxy images. The algorithm is first trained using a manually classified images of elliptical, spiral, and edge-on galaxies. A large set of image features is extracted from each image, and the most informative features are selected using Fisher scores. Test images can then be classified using a simple Weighted Nearest Neighbor rule such that the Fisher scores are used as the feature weights. Experimental results show that galaxy images from Galaxy Zoo can be classified automatically to spiral, elliptical and edge-on galaxies with accuracy of ~90% compared to classifications carried out by the author. Full compilable source code of the algorithm is available for free download, and its general-purpose nature makes it suitable for other uses that involve automatic image analysis of celestial objects.
]]></description>
<dc:subject>astrophysics work paper reading</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:fbe01d9a1a36/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astrophysics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:work"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:reading"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/0710.0671">
    <title>[0710.0671] The Cosmos in Your Pocket: How Cosmological Science Became ...</title>
    <dc:date>2009-08-25T14:34:55+00:00</dc:date>
    <link>http://arxiv.org/abs/0710.0671</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Astronomy provides a laboratory for extreme physics, a window into environments at extremes of distance, temperature and density that often can't be reproduced in Earth laboratories, or at least not right away. A surprising amount of the science we understand today started out as solutions to problems in astronomy. Some of this science was key in the development of many technologies which we enjoy today. This paper describes some of these connections between astronomy and technology and their history.
]]></description>
<dc:subject>science paper astronomy reading</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:af19abc31182/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astronomy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:reading"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/0903.0484">
    <title>Hacking the Sky. (arXiv:0903.0484v1 [astro-ph.IM])</title>
    <dc:date>2009-08-18T22:00:52+00:00</dc:date>
    <link>http://arxiv.org/abs/0903.0484</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[In this article I present some special astronomical scripts created for Google Earth, Google Sky and Twitter. These 'hacks' are examples of the ways in which such tools can be used either alone, in on conjunction with online services. The result of a combination of multiple, online services to form a new facility is called a mash-up. Some of what follows falls into that definition. As we move into an era of online data and tools, it is the network as a whole that becomes important. Tools emerging from this network can be capable of more than the sum of their parts.
]]></description>
<dc:subject>astronomy web internet programming paper arxiv google mashup article astro-ph</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:96a90a547e7e/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astronomy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:web"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:internet"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:programming"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:arxiv"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:google"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:mashup"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:article"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astro-ph"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www3.interscience.wiley.com/journal/122457267/abstract">
    <title>A new formula describing the scaffold structure of spiral galaxies</title>
    <dc:date>2009-08-07T08:54:32+00:00</dc:date>
    <link>http://www3.interscience.wiley.com/journal/122457267/abstract</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[We describe a new formula capable of quantitatively characterizing the Hubble sequence of spiral galaxies including grand design and barred spirals. Special shapes such as ring galaxies with inward and outward arms are also described by the analytic continuation of the same formula. The formula is  r(φ) =A/log [B tan   (φ/2N)] . This function intrinsically generates a bar in a continuous, fixed relationship relative to an arm of arbitrary winding sweep. A is simply a scale parameter while B, together with N, determines the spiral pitch. Roughly, greater N results in tighter winding. Greater B results in greater arm sweep and smaller bar/bulge, while smaller B fits larger bar/bulge with a sharper bar/arm junction. Thus B controls the 'bar/bulge-to-arm' size, while N controls the tightness much like the Hubble scheme. The formula can be recast in a form dependent only on a unique point of turnover angle of pitch – essentially a one-parameter fit [...]
]]></description>
<dc:subject>astronomy galaxies work science reading paper</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:ba059ca0a47f/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astronomy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:galaxies"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:work"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:reading"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://dx.doi.org/10.1051/0004-6361:20020792">
    <title>Constraints on $(\Omega_\mathsf{m},\Omega_\Lambda)$ using distributions of inclination angles for high redshift filaments</title>
    <dc:date>2009-08-06T10:22:49+00:00</dc:date>
    <link>http://dx.doi.org/10.1051/0004-6361:20020792</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Proposal for a Cosmological Tests with Ly$\alpha$ emitters.
]]></description>
<dc:subject>work astronomy astrophysics paper research cosmology</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:b127252a0bb6/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:work"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astronomy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astrophysics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:research"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:cosmology"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://nedwww.ipac.caltech.edu/level5/Sept01/Binggeli/frames.html">
    <title>The luminosity function of galaxies - B. Binggeli et al.</title>
    <dc:date>2009-07-11T20:17:38+00:00</dc:date>
    <link>http://nedwww.ipac.caltech.edu/level5/Sept01/Binggeli/frames.html</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Reprinted with kind permission from Annual Reviews, 4139 El Camino Way, Palo Alto, California, USA
]]></description>
<dc:subject>web review astronomy work research reading paper</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:3fbd5063e055/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:web"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:review"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:astronomy"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:work"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:research"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:reading"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/gr-qc/9411035">
    <title>Pedestrian Notes on Quantum Mechanics</title>
    <dc:date>2009-07-11T19:45:10+00:00</dc:date>
    <link>http://arxiv.org/abs/gr-qc/9411035</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[I present an elementary essay on some issues related to nonrelativistic quantum mechanics, which is written in the spirit of extreme simplicity, making it an easy-to-read paper. Moreover, one can find a useful collection of ideas and opinions expressed by many well-known authors in this vast research field
]]></description>
<dc:subject>arxiv quantum mechanics physics reading paper science</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:62d2a0240cd1/</dc:identifier>
<taxo:topics><rdf:Bag>	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:arxiv"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:quantum"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:mechanics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:physics"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:reading"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:science"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://link.aip.org/link/?PSISDG/5492/1145/1">
    <title>The second-generation VLT instrument MUSE: science drivers and instrument design</title>
    <dc:date>2009-06-26T17:47:17+00:00</dc:date>
    <link>http://link.aip.org/link/?PSISDG/5492/1145/1</link>
    <dc:creator>Knusper2000</dc:creator><dc:subject>paper research work</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:5e2142d6eecf/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:research"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:work"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://library.web.cern.ch/library/Library/RPP.html">
    <title>CERN | Scientific Information Service | Review of Particle Physics</title>
    <dc:date>2009-06-24T15:51:55+00:00</dc:date>
    <link>http://library.web.cern.ch/library/Library/RPP.html</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[The current form of the Particle properties tables stems directly from a 1957 article in the Annual review of nuclear science, by  Gell-Mann and Rosenfeld.

Data on particles were becoming available at an increasing rate, and even before the Annual Review volume was published, Walter H. Barkas and A. H. Rosenfeld decided to make the first update of the table of masses and mean lives. It appeared as Lawrence Radiation Laboratory Report UCRL-8030 (unpublished). Thus 1957 saw the first edition of UCRL-8030: Data for elementary-particle physics.

The first revision of UCRL-8030 was made in 1958, accompanied by a "wallet card".

In 1963, Matts Roos's Tables of elementary particles and resonant states illustrated that it was no longer possible for a single person to compile data critically. Thus, as he saw the Rosenfeld et al.'s computerized draft of the 1964 edition, he suggested combining efforts. 

...
]]></description>
<dc:subject>physik review artikel studium forschung reading paper research</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:810b897be8d2/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:review"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:artikel"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:studium"/>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
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</item>
<item rdf:about="http://arxiv.org/abs/0906.2312">
    <title>[0906.2312] Understanding the redshift evolution of the luminosity functions of Lyman-alpha emitters</title>
    <dc:date>2009-06-19T22:16:24+00:00</dc:date>
    <link>http://arxiv.org/abs/0906.2312</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[We present a semi-analytical model of star formation which explains simultaneously the observed UV luminosity function of high redshift Lyman break galaxies (LBGs) and luminosity functions of Lyman-alpha emitters. [...]
]]></description>
<dc:subject>astronomy research paper</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:3712c8e6ddc5/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:research"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://arxiv.org/abs/0906.2805">
    <title>How was the Hubble sequence 6 Gyrs ago?</title>
    <dc:date>2009-06-19T16:28:11+00:00</dc:date>
    <link>http://arxiv.org/abs/0906.2805</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[The way galaxies assemble their mass to form the well-defined Hubble sequence is amongst the most debated topic in modern cosmology. One difficulty is to link distant galaxies to those at present epoch. We aim at establishing how were the galaxies of the Hubble sequence, 6 Gyrs ago. We intend to derive a past Hubble sequence that can be causally linked to the present-day one. We selected samples of nearby galaxies from the SDSS and of distant galaxies from the GOODS survey. We verified that each sample is representative of galaxies. We further showed that the observational conditions necessary to retrieve their morphological classification are similar in an unbiased way. Morphological analysis has been done in an identical way for all galaxies in the two samples. We found an absence of number evolution for elliptical and lenticular galaxies, which strikingly contrasts with the strong evolution of spiral and peculiar galaxies. Spiral galaxies were 2.3 times less abundant in the past ...
]]></description>
<dc:subject>astronomy astrophysics paper science work</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:f4856e14da30/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:science"/>
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</item>
<item rdf:about="http://citeseerx.ist.psu.edu/viewdoc/summary10.1.1.12.3966">
    <title>Least Squares.</title>
    <dc:date>2009-05-03T18:38:23+00:00</dc:date>
    <link>http://citeseerx.ist.psu.edu/viewdoc/summary10.1.1.12.3966</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[Introduction The least square method---a very popular technique---is used to compute estimations of parameters and to fit data. It is one of the oldest techniques of modern statistics as it was first published in 1805 by the French mathematician Legendre in a now classic memoir. But this method is even older because it turned out that, after the publication of Legendre's memoir, Gauss, the famous German mathematician, published another memoir (in 1809) in which he mentioned that he had previously discovered this method and used it as early as 1795.
]]></description>
<dc:subject>science mathematics statistics reading academic research paper</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:edff8ede67cd/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:statistics"/>
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<item rdf:about="http://physics.nist.gov/cuu/Constants/index.html">
    <title>Fundamental Physical Constants from NIST</title>
    <dc:date>2009-04-11T10:16:49+00:00</dc:date>
    <link>http://physics.nist.gov/cuu/Constants/index.html</link>
    <dc:creator>Knusper2000</dc:creator><dc:subject>science reference database units physics astronomy constants fundamental research paper</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:7cccfa20651d/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:constants"/>
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<item rdf:about="http://www.centauri-dreams.org/">
    <title>Centauri Dreams</title>
    <dc:date>2008-11-28T23:12:32+00:00</dc:date>
    <link>http://www.centauri-dreams.org/</link>
    <dc:creator>Knusper2000</dc:creator><dc:subject>science reference astronomy blog exploration physics space astrophysics blogs academic paper wissenschaft forschung</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:e5d713961bd5/</dc:identifier>
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</item>
<item rdf:about="http://arxiv.org/abs/0809.0339">
    <title>The Cepheid Galactic Internet</title>
    <dc:date>2008-09-03T20:02:21+00:00</dc:date>
    <link>http://arxiv.org/abs/0809.0339</link>
    <dc:creator>Knusper2000</dc:creator><description><![CDATA[We propose that a sufficiently advanced civilization may employ Cepheid variable stars as beacons to transmit all-call information throughout the galaxy and beyond. One can construct many scenarios wherein it would be desirable for such a civilization of star ticklers to transmit data to anyone else within viewing range. The beauty of employing Cepheids is that these stars can be seen from afar(we monitor them out through the Virgo cluster), and any developing technological society would seem to be likely to closely observe them as distance markers. Records exist of Cepheids for well over one hundred years. We propose that these (and other regularly variable types of stars) be searched for signs of phase modulation (in the regime of short pulse duration) and patterns, which could be indicative of intentional signaling.
]]></description>
<dc:subject>astronomy research academic paper</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:68ea1b6150d1/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:academic"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://www.amherst.edu/~rloldershaw/">
    <title>Fractal Cosmology</title>
    <dc:date>2008-08-17T21:03:39+00:00</dc:date>
    <link>http://www.amherst.edu/~rloldershaw/</link>
    <dc:creator>Knusper2000</dc:creator><dc:subject>astronomy research paper science physics</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:60f72ef690c9/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:research"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:paper"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:science"/>
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</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://refdb.sourceforge.net/">
    <title>RefDB homepage</title>
    <dc:date>2008-07-28T11:04:03+00:00</dc:date>
    <link>http://refdb.sourceforge.net/</link>
    <dc:creator>Knusper2000</dc:creator><dc:subject>academic bibliography research Science software tool unix work linux latex emacs open opensource paper reference</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:d328c748f597/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:Science"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:software"/>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:unix"/>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:linux"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:latex"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:emacs"/>
	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:open"/>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:reference"/>
</rdf:Bag></taxo:topics>
</item>
<item rdf:about="http://dmca.cs.washington.edu/">
    <title>Tracking the Trackers</title>
    <dc:date>2008-06-29T16:49:17+00:00</dc:date>
    <link>http://dmca.cs.washington.edu/</link>
    <dc:creator>Knusper2000</dc:creator><dc:subject>bittorrent research paper university work technology news</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:03f8b3a15a2f/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:news"/>
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</item>
<item rdf:about="http://www.cylegage.com/lulz/">
    <title>I Can Has Rezearch Papar? by Cyle Gage</title>
    <dc:date>2008-01-20T14:48:57+00:00</dc:date>
    <link>http://www.cylegage.com/lulz/</link>
    <dc:creator>Knusper2000</dc:creator><dc:subject>academic community culture computing design history humor interesting Lulz media online paper web2.0 weird internet research web reference fun Funny</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:05d3adf0984b/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:culture"/>
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<item rdf:about="http://www.impulse-based.de/">
    <title>Impulse-based dynamic simulation</title>
    <dc:date>2007-12-30T19:52:13+00:00</dc:date>
    <link>http://www.impulse-based.de/</link>
    <dc:creator>Knusper2000</dc:creator><dc:subject>math Physics free simulation Research Science paper</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:1495fd9ca9df/</dc:identifier>
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	<rdf:li rdf:resource="https://pinboard.in/u:Knusper2000/t:free"/>
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<item rdf:about="http://www.jstor.org/">
    <title>JSTOR - The Scholarly Journal Archive</title>
    <dc:date>2007-12-02T17:16:25+00:00</dc:date>
    <link>http://www.jstor.org/</link>
    <dc:creator>Knusper2000</dc:creator><dc:subject>academic bibliography electronic forschung learning magazine math mathematics maths media online paper Physics reference references research Science web Writing journals journal archive Search</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:7115c18dfe62/</dc:identifier>
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<item rdf:about="http://www7a.biglobe.ne.jp/~sf-papercraft/Gallery/at-at/at-at.html">
    <title>SF PaperCraftGallery</title>
    <dc:date>2007-05-24T13:37:43+00:00</dc:date>
    <link>http://www7a.biglobe.ne.jp/~sf-papercraft/Gallery/at-at/at-at.html</link>
    <dc:creator>Knusper2000</dc:creator><dc:subject>paper pdf photo sci-fi download starwars papercraft origami crafts DIY art</dc:subject>
<dc:identifier>https://pinboard.in/u:Knusper2000/b:bb4757c776e4/</dc:identifier>
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