cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Production of very neutron-rich nuclei with a 76Ge beam
Creators: name: Tarasov, O. B.
name: Portillo, M.
name: Amthor, A. M.
name: Baumann, T.
name: Bazin, D.
name: Gade, A.
name: Ginter, T. N.
name: Hausmann, M.
name: Inabe, N.
name: Kubo, T.
name: Morrissey, D. J.
name: Nettleton, A.
name: Pereira, J.
name: Sherrill, B. M.
name: Stolz, A.
name: Thoennessen, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Production cross sections for neutron-rich nuclei from the fragmentation of a 76Ge beam at 132 MeV/u were measured. The longitudinal momentum distributions of 34 neutron-rich isotopes of elements 13 <= Z <= 27 were scanned using a novel experimental approach of varying the target thickness. Production cross sections with beryllium and tungsten targets were determined for a large number of nuclei including 15 isotopes first observed in this work. These are the most neutron-rich nuclides of the elements 17 <= Z <= 25 (50Cl, 53Ar, 55,56K, 57,58Ca, 59,60,61Sc, 62,63Ti, 65,66V, 68Cr,70Mn). A one-body Qg systematics is used to describe the production cross sections based on thermal evaporation from excited prefragments. Some of the fragments near 58Ca show anomalously large production cross sections.
description: accepted for publication in Phys.Rev.C
On an inequality related to the radial growth of subharmonic functions
Creators: name: Riihentaus, Juhani
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 31B25, 31B05

description: It is a classical result that every subharmonic function, defined and ${\mathcal{L}}^p$-integrable for some $p$, $0
description: 8 pages
NMDA retseptorsüsteemid NMDA retseptorsüsteemid
Creators: name: Braschinsky, Mark
Publisher: name: OÜ Celsius Healthcare
Year: 2009
Subjects: glutamaat, NMDA retseptorid, neurodegeneratiivsed haigused

description: N-metüül-D-aspartaadi (NMDA) retseptorite kaudu toimuv kaltsiumiioonide sissevool närvirakkudesse on vajalik närvisüsteemis toimuvateks füsioloogilisteks protsessideks. Selle süsteemi üleaktivatsiooni tingimustes suureneb markantselt postsünaptilistes neuronites intratsellullarse Ca2+ hulk ning see on neuronite degeneratsiooni üks võtmeprotsesse. Selle protsessi blokeerimist võib pidada potentsiaalseks ravisuunaks teatud neurodegeneratiivsete haiguste ravis. NMDA antagonist memantiin on kasutusel sümptomaatiliseks raviks Alzheimeri tõve korral, samuti on andmeid amantadiini tõhususes polüskleroosi korral kujuneva kroonilise väsimuse ravis.


Eesti Arst 2009; 88(6):433−436
description: Eesti Arst, Juuni 2009
Prediction, Retrodiction, and The Amount of Information Stored in the Present
Creators: name: Ellison, Christopher J.
name: Mahoney, John R.
name: Crutchfield, James P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Information Theory (cs.IT)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We introduce an ambidextrous view of stochastic dynamical systems, comparing their forward-time and reverse-time representations and then integrating them into a single time-symmetric representation. The perspective is useful theoretically, computationally, and conceptually. Mathematically, we prove that the excess entropy--a familiar measure of organization in complex systems--is the mutual information not only between the past and future, but also between the predictive and retrodictive causal states. Practically, we exploit the connection between prediction and retrodiction to directly calculate the excess entropy. Conceptually, these lead one to discover new system invariants for stochastic dynamical systems: crypticity (information accessibility) and causal irreversibility. Ultimately, we introduce a time-symmetric representation that unifies all these quantities, compressing the two directional representations into one. The resulting compression offers a new conception of the amount of information stored in the present.
description: 17 pages, 7 figures, 1 table; http://users.cse.ucdavis.edu/~cmg/compmech/pubs/pratisp.htm
PSA – biomarker, mis on muutnud eesnäärmehaiguste kliinilist käsitlust
Creators: name: Ausmees, Kristo
name: Žarkovski, Mihhail
Publisher: name: OÜ Celsius Healthcare
Year: 2009
Subjects: PSA, eesnäärmehaigused, krooniline nimmevalu sündroom

description: Prostataspetsiifi line antigeen on enim kasutatav eesnäärmehaiguste marker kliinilises meditsiinis, mille tähtsus prostata biomarkerina avastati 1979. aastal. Oluline on teada, et PSA on eesnäärme-, mitte kasvajaspetsiifi line marker. Lisaks eesnäärmekasvajale võib kõrgenenud PSA tase seerumis olla seotud ka eesnäärme healoomuliste muutustega, samuti mõjutavad seerumi PSA taset eelnev seemnepurse, eesnäärme palpatsioon ja biopsia. Kõrgenenud PSA taseme korral on soovitatav mehel teha eesnäärmehaiguste välistamiseks lisauuringud. Vaatamata ravi foonil langenud PSA tasemele on näidustatud hilisem eesnäärme pikaajaline diagnostiline jälgimine.


Eesti Arst 2009; 88(6):419−426
description: Eesti Arst, Juuni 2009
Associations of Neighborhood Crime and Safety and with Changes in Body Mass Index and Waist Circumference
Creators: name: Evenson, K.R.
name: Block, R.
name: Moore, K.
name: Allen, N.
name: Diez Roux, A.V.
name: Powell-Wiley, T.M.
name: Mujahid, M.
Publisher: name: Oxford University Press
Year: 2017

description: Using data from the Multi-Ethnic Study of Atherosclerosis (MESA), we evaluated associations of neighborhood crime and safety with changes in adiposity (body mass index (BMI) and waist circumference). MESA is a longitudinal study of cardiovascular disease among adults aged 45-84 years at baseline in 2000-2002, from 6 US sites, with follow-up for MESA participants until 2012. Data for this study were limited to Chicago, Illinois, participants in the MESA Neighborhood Ancillary Study, for whom police-recorded crime data were available, and who had complete baseline data (n = 673). We estimated associations of individual-level safety, aggregated neighborhood-level safety, and police-recorded crime with baseline levels and trajectories of BMI and waist circumference over time using linear mixed modeling with random effects. We also estimated how changes in these factors related to changes in BMI and waist circumference using econometric fixed-effects models. At baseline, greater individual-level safety was associated with more adiposity. Increasing individual- and neighborhood-level safety over time were associated with decreasing BMI over the 10-year period, with a more pronounced effect observed in women for individual-level safety and men for neighborhood-level safety. Police-recorded crime was not associated with adiposity. Neighborhood-level safety likely influences adiposity change and subsequent cardiovascular risk in multiethnic populations.
FRAX – osteoporootilise luumurru riski määramise mudel
Creators: name: Sinisalu, Väino
Publisher: name: OÜ Celsius Healthcare
Year: 2009
Subjects: osteoporoos, osteoporootilise murru risk, FRAX

description: Osteoporoosiga kaasnevad luumurrud on süvenev rahvastiku terviseprobleem. FRAXi algoritm võimaldab prognoosida murru riski, võttes arvesse luu mineraalset tihedust, vanust ja mitmeid riskitegureid. FRAX ei ole Eestis valideeritud ega seega automaatselt meil kasutusele võetav. Igapäevases kliinilises töös on soovitatav hinnata FRAXi algoritmis toodud riskitegureid ja selle alusel teha otsuseid haige käsitlemiseks.


Eesti Arst 2009; 88(6):415−417
description: Eesti Arst, Juuni 2009
Nuclear form factor, validity of the equivalent photon approximation and Coulomb corrections to muon pair production in photon-nucleus and nucleus-nucleus collisions
Creators: name: Jentschura, U. D.
name: Serbo, V. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study in detail the influence of the nuclear form factor both on the Born cross section and on the Coulomb corrections to the photo-production of muon pairs off heavy nuclei (gamma Z -> mu+ mu- Z$) and in heavy-ion collisions (ZZ -> ZZ mu+ mu-). Our findings indicate a number of issues which have not been sufficiently described as yet in the literature: (i) the use of a realistic form factor, based on the Fermi charge distribution for the nucleus, is absolutely indispensable for reliable theoretical predictions; (ii) we checked quantitatively that the equivalent photon approximation has a very good accuracy for the discussed processes; and (iii) we present a leading logarithmic calculation of the Coulomb corrections which correspond to multi-photon exchange of the produced mu+/- with the nuclei. These corrections are found to be small (on the percent level). Our result justifies using the Born approximation for numerical simulations of the discussed process at the RHIC and LHC colliders. Finally, we calculate the total cross section for muon pair production at RHIC and LHC.
description: 9 pages, LaTeX
Chandra Observations of Comets 8P/Tuttle and 17P/Holmes during Solar Minimum
Creators: name: Christian, D. J.
name: Bodewits, D.
name: Lisse, C. M.
name: Dennerl, K.
name: Wolk, S. J.
name: Hsieh, H.
name: Zurbuchen, T. H.
name: Zhao, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present results for Chandra observations of comets, 17P/Holmes (17P) and 8P/Tuttle (8P). 17P was observed for 30 ksec right after its major outburst, on 31 Oct 2007 (10:07 UT) and comet 8P/Tuttle was observed in 2008 January for 47 ksec. During the two Chandra observations, 17P was producing at least 100 times more water than 8P but was 2.2 times further away from the Sun. Also, 17P is the first comet observed at high latitude (+19.1 degrees) during solar minimum, while 8P was observed at a lower solar latitude (3.4 degrees). The X-ray spectrum of 17P is unusually soft with little significant emission at energies above 500 eV. Depending on our choice of background, we derive a 300 to 1000 eV flux of 0.5 to 4.5 x 10^-13 ergs/cm2/sec, with over 90% of the emission in the 300 to 400 eV range. This corresponds to an X-ray luminosity between 0.4 to 3.3 x 10^15 ergs/sec. 17P's lack of X-rays in the 400 to 1000 eV range, in a simple picture, may be attributed to the polar solar wind, which is depleted in highly charged ions. 8P/Tuttle was much brighter, with an average count rate of 0.20 counts/s in the 300 to 1000 eV range. We derive an average X-ray flux in this range of 9.4 x 10^-13 ergs/cm2/sec and an X-ray luminosity for the comet of 1.7 x 10^14 ergs/sec. The light curve showed a dramatic decrease in flux of over 60% between observations on January 1st and 4th. When comparing outer regions of the coma to inner regions, its spectra showed a decrease in ratios of CVI/CV, OVIII/OVII, as predicted by recent solar wind charge exchange emission models. There are remarkable differences between the X-ray emission from these two comets, further demonstrating the qualities of cometary X-ray observations, and solar wind charge exchange emission in more general as a means of remote diagnostics of the interaction of astrophysical plasmas.
description: 37 Pages, 8 Tables, 11 Figures; Accepted in Astrophysical Journal Supplements
The Impact of the Physical Activity Policy Research Network
Creators: name: Valko, C.
name: Brownson, R.C.
name: Manteiga, A.M.
name: Schmid, T.
name: Evenson, K.R.
name: Eyler, A.A.
Publisher: name: Elsevier Inc.
Year: 2017

description: Introduction Lack of physical activity is one of the greatest challenges of the 21st century. The Physical Activity Policy Research Network (PAPRN) is a thematic network established in 2004 to identify determinants, implementation, and outcomes of policies that are effective in increasing physical activity. The purpose of this study is to describe the products of PAPRN and make recommendations for future research and best practices. Methods A mixed methods approach was used to obtain both quantitative and qualitative data on the network. First, in 2014, PAPRN's dissemination products from 2004 to 2014 were extracted and reviewed, including 57 publications and 56 presentations. Next, semi-structured qualitative interviews were conducted with 25 key network participants from 17 locations around the U.S. The transcripts were transcribed and coded. Results The results of the interviews indicated that the research network addressed several components of its mission, including the identification of physical activity policies, determinants of these policies, and the process of policy implementation. However, research focusing on physical activity policy outcomes was limited. Best practices included collaboration between researchers and practitioners and involvement of practitioners in research design, data collection, and dissemination of results. Conclusions PAPRN is an example of a productive research network and has contributed to both the process and content of physical activity policy research over the past decade. Future research should emphasize physical activity policy outcomes. Additionally, increased partnerships with practitioners for collaborative, cross-sectoral physical activity policy research should be developed.
Density-matrix theory of the optical dynamics and transport in quantum cascade structures: The role of coherence
Creators: name: Weber, C.
name: Wacker, A.
name: Knorr, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The impact of coherence on the nonlinear optical response and stationary transport is studied in quantum cascade laser structures. Nonequilibrium effects such as pump-probe signals, the spatio-temporally resolved electron density evolution, and the subband population dynamics (Rabi flopping) as well as the stationary current characteristics are investigated within a microscopic density-matrix approach. Focusing on the stationary current and the recently observed gain oscillations, it is found that the inclusion of coherence leads to observable coherent effects in opposite parameter regimes regarding the relation between the level broadening and the tunnel coupling across the main injection barrier. This shows that coherence plays a complementary role in stationary transport and nonlinear optical dynamics in the sense that it leads to measurable effects in opposite regimes. For this reason, a fully coherent consideration of such nonequilibrium structures is necessary to describe the combined optical and transport properties
description: 14 pages, 11 figures; final version
The characteristics and world-wide propogation of PI 2 micropulsations
Creators: name: Rostoker, Gordon
Publisher: name: University of British Columbia
Year: 2011

description: Over the years, the study of the aurora has drawn on many different aspects of physics and geophysics in an attempt to explain this common phenomenon. Two prominent magnetic effects which are associated with auroral displays are geomagnetic bays and Pi 2 micropulsations. Both these geomagnetic perturbations attain a maximum amplitude in the auroral zone, but may also be seen in mid and low latitude regions. A bay may be described as the magnetic field of a westward flowing current in the auroral zone coupled with an eastward flowing return current in the mid-latitude and polar cap regions. The means by which Pi 2 micropulsations propagate from the auroral zone centre of activity to mid and low latitude field points is not as yet known. To study the propagation characteristics of Pi 2 micropulsations, a set of five fluxgate magnetometer units was set up stretching across the continent from Victoria, B.C. to Montreal, P.Q. with all stations lying on approximately geomagnetic latitude 56°N. Continuous recordings of H, D and a filtered H component (bandpass 25 - 200 sec.) were made from June 1, 1965 till Aug. 15, 1965. Further information on pertinent disturbances was obtained from stations distributed over the continents of North America and Antarctica. A theoretical study of some of the possible modes of propagation was carried out and specific characteristics of each mode were established in order to permit a check with the experimental data obtained. The pulsations of interest were digitized and power spectra as well as Fourier spectra were computed for the H and D components. The position in longitude of the source of the disturbance was determined making use of pulsation amplitudes, bay amplitudes, and the direction of the disturbance vectors in the horizontal plane. An intensive investigation of the polarization of the pulsations in the horizontal plane was carried out, making use of the complete chain of several cycles but drawing each cycle separately for comparison purposes. This analysis disagrees with previous claims that Pi 2 pulsations are polarized anticlockwise after local midnight and clockwise before local midnight. On the basis of the analysis performed with the data, it was found that the mode of propagation most likely responsible for the transfer of Pi 2 activity from high to mid latitudes could be described by a plane electromagnetic wave propagating approximately normal to the earth's magnetic field lines through the lower E-region of the ionosphere. It is found that the maximum period in a Pi 2 event increases with increasing Kp index in the range Kp ~0 + to 2o. This complements the earlier observation that the dominant period in a Pi 2 event decreases as the Kp index increases; this fact is also verified in the analysis of the experimental data. It is found that the number of peaks in the frequency spectrum of a Pi 2 event increases approximately linearly with increasing Kp .
Magnetic Molecule on a Microcantilever: Quantum Magneto-mechanical Oscillations
Creators: name: Jaafar, Reem
name: Chudnovsky, E. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the quantum dynamics of a system consisting of a magnetic molecule placed on a microcantilever. The amplitude and frequencies of the coupled magneto-mechanical oscillations are computed. Parameter-free theory shows that the existing experimental techniques permit observation of the driven coupled oscillations of the spin and the cantilever, as well as of the splitting of the mechanical modes of the cantilever caused by spin tunneling.
description: 4 pages, 3 figures
Angiotensiini konverteeriva ensüümi inhibiitorid
Creators: name: Kalda, Anti
Publisher: name: OÜ Celsius Healthcare
Year: 2009
Subjects: reniin-angiotensiinaldesteroon- süsteem, angiotensiini konverteeriva ensüümi inhibiitorid

description: Reniin-angiotensiin-aldosteroonsüsteem (RAAS) toimib sünergistlikult sümpaatilise närvisüsteemiga. Neerudest vabanev proteolüütiline ensüüm reniin on RAASi aktiveeriv aine, mille tulemusena tekib angiotensinogeenist angiotensiin I. Angiotensiini konverteeriv ensüüm (AKE) katalüüsib angiotensiin I konversiooni bioloogiliselt aktiivseks angiotensiin II kudedes ja plasmas. Angiotensiin II on vasokonstriktor ja stimuleerib neerupealsete koores aldosterooni sünteesi ja vabanemist. Aldosteroon etendab olulist osa neerude kaudu Na+ eritumise, kehavedeliku hulga ja veresoonte toonuse regulatsioonis. AKE inhibiitorid on tänapäeval leidnud kindla koha arteriaalse hüpertensiooni, kongestiivse ning müokardiinfarktijärgse südamepuudulikkuse ja diabeetilise nefropaatia ravis.


Eesti Arst 2009; 88(6):443−448
description: Eesti Arst, Juuni 2009
Bronze Age sundial from Prokletije (Montenegro)
Creators: name: Petricevic Milos
name: Vodolazhskaya Larisa
Publisher: name: Archaeoastronomy and Ancient Technologies
Year: 2021
Subjects: cup marks
hour markers
grooves
slab
analemmatic sundial
hour line
Bronze Age
Sun Stone

description: The article presents the results of a study of signs on a Bronze Age slab "Sun stone" discovered at the foot of Maja e Can in Volušnica massif (Prokletije National Park, Montenegro). Studies have shown that the slab is an analemmatic sundial. The "Sun Stone" is more similar in marking to the slabs of the Srubnaya culture: all the cup marks are small and located along the ellipse line. Ellipses of bowl-shaped signs of analemmatic sundials from the Northern Black Sea region are similar in size to the reconstructed ellipse of the "Sun Stone". In addition, on one sundial from the Northern Black Sea region, the groove marks the distance that the gnomon must travel on the day of the winter solstice, similar to the groove on the Sun Stone. In the hour marking of sundial slabs from the Northern Black Sea region and Western Balkans, continuity can be traced, confirming the dating of the XV-XII centuries BC and indicating contacts of representatives of the synchronous local Glasinac culture (Glasinac II – Glasinac III) of the Western Balkans with representatives of the Srubnaya culture of the Northern Black Sea region.
Mandlikivi. Haigusjuhu kirjeldus ja kirjanduse ülevaade
Creators: name: Lieberg, Neve
name: Jagur, Oksana
Publisher: name: OÜ Celsius Healthcare
Year: 2009
Subjects: mandlikivi, tonsilliit, halitoos

description: 31aastane naispatsient suunati TÜ Kliinikumi näo- ja lõualuukirurgi konsultatsioonile seoses pikaajaliste kaebustega valulike neelamishäirete ning tükitunde suhtes kurgus. Kaebuste põhjuseks oli vasakpoolses mandlis paiknev kaltsifikaat. Mandlikive tuleb kliinilises praktikas ette harva ning levinuima patogeneesimehhanismi järgi seostatakse nende teket sagedaste tonsilliitidega. Raviks kasutatakse tonsillektoomiat.


Eesti Arst 2009; 88(6):438−441
description: Eesti Arst, Juuni 2009
Calibration of continuous velocity logs using the comparison of synthetic and field records
Creators: name: Gurbuz, Behic M.
Publisher: name: University of British Columbia
Year: 2011

description: This study is undertaken in order to calibrate the continuous velocity logs using the comparision of synthetics and field records. The results refer to the following wells in Alberta. 1. Texaco Arrowhead B-76 60 25' 02"N, 122 59' 02" W 2. British American Morrin 7-3 Lsd 1, Section 3, Twp 31N, Rge 20 4M 3. Cancrude British American Champion 16-29 Lsd 16/ Section 29, Twp 14, Rge 24 W 4M The synthetic records were obtained using a linear filter model. To accomplish the synthesizing process in the laboratory, a magnetic tape function generator is used. The two-way time-depth curves are- plotted for these three wells. From these curves-the time intervals of continuous velocity logs were found in-error by 0.007 seconds to 0.0082 seconds. The possible errors in time scale of synthetic seismograms are discussed in Chapter IV. The comparision of synthetics with actual field seismograms recorded corresponding well locations and the main creteria for a "good match" and "poor match" are discussed.
Eesti Arstiteadusüliõpilaste Selts: mõtle globaalselt, tegutse kohapeal
Creators: name: Sinisalu, Väino
Publisher: name: OÜ Celsius Healthcare
Year: 2009

description: Eesti Arstiteadusüliõpilaste Selts (EAÜS) kujunes välja aastatel 1989–1991. Regulaarse tegevuse alguseks peetakse aastat 1991.


Eesti Arst 2009; 88(6):450−452
description: Eesti Arst, Juuni 2009
Exercise and pregnancy in recreational and elite athletes: 2016/17 evidence summary from the IOC expert group meeting, Lausanne. Part 4 - Recommendations for future research
Creators: name: Dooley, M.
name: Kinnunen, T.I.
name: Haakstad, L.A.H.
name: Kayser, B.
name: Stuge, B.
name: Artal, R.
name: Khan, K.M.
name: Nygaard, I.
name: Evenson, K.R.
name: Van Poppel, M.
name: Davies, G.A.L.
name: Larsén, K.
name: Brown, W.J.
name: Bø, K.
name: Mottola, M.F.
name: Barakat, R.
Publisher: name: BMJ Publishing Group
Year: 2017

description: This is Part 4 in the series of reviews from the International Olympic Committee (IOC) expert committee on exercise and pregnancy in recreational and elite athletes. Part 1 focused on the effects of training during pregnancy and on the management of common pregnancy-related complaints experienced by athletes; Part 2 addressed maternal and foetal perinatal outcomes; Part 3 reviewed the implications of pregnancy and childbirth on return to exercise and on common illnesses and complaints in the postpartum period. Parts 1–3 are all open access papers.
Images of the Saturn Hexagon before Voyager 1
Creators: name: Ferreri Walter
name: Codebò Mario
name: Bubbi Barbara
Publisher: name: Archaeoastronomy and Ancient Technologies
Year: 2021
Subjects: Saturn
Exagon
Voyager 1
Barnard
Antoniadi
Planetary observations
Refractors

description: In 1981 the Voyager 1 probe photographed – and later the Cassini probe confirmed – a hexagonal vortex on Saturn's North pole. This cloud features extends for about 30,000 km keeping its shape unchanged as it rotates with the planet. But, since we see it very foreshortened, it appears to us with the greater extension of 4" and the smaller one of 1.3": this makes it virtually visible from Earth with telescopes. And in fact, after the first images of Voyager 1, many amateur astronomers managed to photograph it even with modest instruments of a few tens of centimeters in diameter, but using digital photography techniques. We therefore wondered if the hexagon had been seen by astronomers of the past mainly using their professional telescopes. Our research gave positive results: E.E. Barnard (with the Yerkes' refractor) and E.M. Antoniadi (earlier with Juvisy's and later with Meudon's refractors) pictured it since the end of the 19th century, but they never mentioned it in their writings, probably because it was at the limit of visibility and it was impossible to explain the hexagon with the knowledge of that time. These pictures prove that the hexagon has been present and active for at least 124 years on the North Pole of Saturn, similar to the (longer-lived) red spot of Jupiter.
A note on discrete sets
Creators: name: Spadaro, Santi
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54A25

description: We give several partial positive answers to a question of Juhasz and Szentmiklossy regarding the minimum number of discrete sets required to cover a compact space. We study the relationship between the size of discrete sets, free sequences and their closures with the cardinality of a Hausdorff space, improving known results in the literature.
description: 14 pages, to appear on Commentationes Mathematicae Universitatis Carolinae
Exercise and pregnancy in recreational and elite athletes: 2016/17 evidence summary from the IOC Expert Group Meeting, Lausanne. Part 3 - Exercise in the postpartum period
Creators: name: Khan, K.M.
name: Nygaard, I.
name: Kayser, B.
name: Bø, K.
name: Larsén, K.
name: Davies, G.A.L.
name: Haakstad, L.A.H.
name: Van Poppel, M.
name: Mottola, M.F.
name: Stuge, B.
name: Barakat, R.
name: Brown, W.J.
name: Evenson, K.R.
name: Kinnunen, T.I.
name: Artal, R.
name: Dooley, M.
Publisher: name: BMJ Publishing Group
Year: 2017

description: This is Part 3 in the series of reviews from the IOC expert committee on exercise and pregnancy in recreational and elite athletes. Part 1 focused on the effects of training during pregnancy and on the management of common pregnancy-related complaints experienced by athletes1; Part 2 addressed maternal and fetal perinatal outcomes.2 In this part, we review the implications of pregnancy and childbirth on return to exercise and on common illnesses and complaints in the postpartum period. The postpartum period can be divided into hospital-based (during hospital stay), immediate postpartum (hospital discharge to 6 weeks postpartum) and later postpartum (6 weeks to 1 year, corresponding sometimes to cessation of breast feeding).3 In the literature, the postpartum period is usually defined as the first 6 weeks after pregnancy, during which time women have not typically been encouraged to exercise, except for strength training of the pelvic floor muscles. However, 6 weeks is an arbitrary time point and, anecdotally, many elite athletes report starting exercise inside that period. For the purpose of the present review, we consider the postpartum period to be up to 12 months following birth.
title: Occupant Fatalities in Crashes Involving Large Trucks 2013 [Analysis Brief]
Creators: name: Federal Motor Carrier Safety Administration
Publisher: name: Federal Motor Carrier Safety Administration
publisherIdentifier: https://ror.org/01jt5mq34
publisherIdentifierScheme: ROR
Year: 2015
Subjects: classificationCode: https://trt.trb.org/term/93171
subject: Heavy duty trucks
classificationCode: https://trt.trb.org/term/90674
subject: Truck crashes
classificationCode: https://trt.trb.org/term/90775
subject: Fatalities
classificationCode: https://trt.trb.org/term/96717
subject: Statistics
subject: FOS: Mathematics

description: In 2013, 30,057 fatal crashes took place on our Nation’s roadways, with 11.8 percent (3,541) involving at least one large truck.1 The majority of large truck fatal crashes (63 percent) involved two vehicles, while 22 percent were single-vehicle crashes, and 15.1 percent were multi-vehicle crashes. In 2013, there were 3,536 total vehicle occupant fatalities in crashes involving large trucks.
Parallel Sparse Matrix-Matrix Multiplication
Creators: name: Alexandrov, Luben
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2014

description: The thesis investigates the BLAS-3 routine of sparse matrix-matrix multiplication (SpGEMM) based on the outer product method. Sev- eral algorithmic approaches have been implemented and empirically an- alyzed. The experiments have shown that an algorithm presented by Gustavson [22] outperforms other alternatives. In this work we propose optimization techniques that improve the scalability and the cache efficiency of the Gustavson’s algorithm for large matrices. Our approach succeeded to reduce the cache misses by more than a factor of five and to improve the net running time by 30% with some instances. The thesis also presents an algorithm for flops estima- tion, which can be used to determine an upper bound for the density of the result matrix. Furthermore, the work analyzes and empirically evaluates techniques for parallelization of the multiplication in a shared memory model by using Intel TBB and OpenMP. We investigate the cache efficiency of the algorithm in a parallel setting and compare several approaches for load balancing of the computation.
Additional file 1 of ERK activation via A1542/3 limonoids attenuates erythroleukemia through transcriptional stimulation of cholesterol biosynthesis genes
Creators: name: Yu, Fang
name: Gajendran, Babu
name: Wang, Ning
name: Sample, Klarke M.
name: Liu, Wuling
name: Wang, Chunlin
name: Hu, Anling
name: Zacksenhaus, Eldad
name: Hao, Xiaojiang
name: Ben-David, Yaacov
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table 1: qPCR primer sequences. Table 2: ShRNA and siRNA sequences. Table 3: Major clusters with biological functions regulated by A1542 compounds. Table 4. RNAseq data for expression of 67 genes regulated by A1542 in HEL cells treated for 24 h with A1542 (1 μM).
Securitisation and South Pacific Aviation
Creators: name: Guthrie, Karina
Publisher: name: Canberra, ACT : Coral Bell School of Asia Pacific Affairs, College of Asia and the Pacific, The Australian National University
Year: 2014

description: This In Brief examines the securitisation of civil aviation in Australia after 9/11 (2001) and its impact on South Pacific civil aviation regulatory outcomes. Post-9/11 Australia's strategic influence in the South Pacific region saw the civil aviation regulatory focus shift from safety to security. However, the lack of regional support for initiatives such as the establishment of the Pacific Aviation Safety Office (PASO), as well as the subsequent near-collapse of the organisation, suggests that the shift was reflective of Australia's strategic priorities more than it was reflective of Pacific interests in this sector.
Õdede arvu prognoos aastaks 2032
Creators: name: Kiivet, Raul-Allan
name: Visk, Helle
name: Raag, Mait
Publisher: name: OÜ Celsius Healthcare
Year: 2013
Subjects: õde, õe põhiõpe, tervishoiutöötajad, koolitus

description: Taust ja eesmärk. Tervishoiutöötajate lahkumine Eestist välismaale tööle tekitab põhjendatud küsimusi tervishoiusüsteemi jätkusuutlikkuse kohta. Arstide lahkumise kõrval on viimastel aastatel hoogustunud ka õdede lahkumine. Eestis on seatud eesmärgiks, et tervishoius töötaks 9 õde 1000 inimese kohta, kuid viimasel aastakümnel on see suhtarv püsinud 6–7 vahel. Käesoleva uuringu eesmärgiks on ennustada Eestis töötavate õdede arvu ja vanuselise koosseisu muutumist pikemas perspektiivis, lähtudes õdede koolitusarvu suurendamise ja välismaale lahkumise eri stsenaariumitest.  Metoodika. Terviseameti tervishoiutöötajate registrist tehti õdede nimelised väljavõtted 2010. ja 2012. aasta aprilli seisuga, et hinnata õdede töölt lahkumise ja tööle taasasumise muutust. Tervishoiutöötajate registri andmed lingiti Tallinna ja Tartu Tervishoiu Kõrgkoolide õeõppe 2007.–2011. aastal lõpetanute nimekirjadega ning neil aastatel õeõppe lõpetanuid otsiti Soome, Norra ja Suurbritannia tervishoiutöötajate registritest. Nende andmete alusel arvutati vanusespetsiifilised õdede Eestis tööleasumise, välismaale lahkumise ja muul põhjusel töölt lahkumise ning samuti õe tööle naasmise aastased tõenäosused. Arvestades nimetatud tegureid, koostati Eestis töötavate õdede arvu prognoosimudelid erinevate tulevikustsenaariumite läbimängimiseks.  Tulemused. Kokku oli Eestis 2012. aasta aprilli seisuga töökoht 8742 õel ja ämmaemandal, kellest 5% olid vanemad kui 65 aastat. Eesti õdede välismaale lahkumise tõenäosus on 2008.–2011. aasta andmetel 0,4–2% aastas ja see on suurem nooremates vanuserühmades. Kui õdede lahkumine lähemas tulevikus ei suurene ja õeõppesse võetakse jätkuvalt 400 üliõpilast aastas, siis jääb töötavate õdede arv Eestis tänasele tasemele, sest osa lõpetajatest ei asu paraku kunagi õena tööle. Et Eestis oleks 2032. aastal 9 õde 1000 inimese kohta (OECD ja Euroopa Liidu keskmine 2010. aastal), peab alates 2014. aastast kõigil järgmistel aastatel Eesti raviasutustesse tööle minema 450–500 õde ning selle tagab vastuvõtt õeõppesse 700–800 üliõpilast aastas.  Järeldus. Eestis töötavate õdede arvu vähenemise pööramiseks kiirele suurenemisele, et aastaks 2032 saavutada Eestis Euroopa Liidu ja OECD riikide keskmine tase – kolm õde ühe arsti kohta –, peab õeõppesse vastuvõtu Eestis kahekordistama ja seejuures lootma, et õdede lahkumine välismaale ei suurene, vaid püsib aastate 2008–2011 tasemel.Eesti Arst 2013; 92(11):616–626
description: Eesti Arst, Detsember 2013
Stromgren Photometry of the Delta Scuti Stars 7 Aql and 8 Aql
Creators: name: Machado, L. Fox
name: Alvarez, M.
name: Parrao, L.
name: Pena, J. H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The preliminary results of new photometric observations of the $δ$ Scuti stars 7 Aql and 8 Aql are reported. 51 hr of $uvby-β$ photoelectric photometric data were obtained over the period June and July 2007 at the San Pedro Mártir Observatory, Mexico. Period analyses confirm the three pulsation modes discovered in 8 Aql in the framework of the STEPHI 2003 multisite campaign. For the star 7 Aql we were able to detect only the main pulsation modes. The standard magnitudes of both stars are obtained. The frequency, amplitude and phases of the frequency modes in different filters are presented.
description: Proceedings of the International Conference "Stellar Pulsation: Challenges for Theory and Observation", AIP Conf. Proc., Vol. 1170, issue 1, pp. 423-425
Moves app: A digital diary to track physical activity and location
Creators: name: Evenson, K.R.
name: Furberg, R.D.
Publisher: name: BMJ Publishing Group
Year: 2017

description: CATEGORY Fitness. PLATFORM iOS 9.0 or later, Android 4.0.3 or later. COST Free. ABOUT THE APP The Moves app (moves-app.com) was launched in January 2013. The app uses global positioning system (GPS) technology, Wi-Fi and cell towers along with samples of the smartphone’s accelerometer data to record location, physical activity (eg, walking, bicycling and running) and transit throughout the day.1 In the account settings, users can provide their email, gender, weight, height and birth year. From these assessments, the app provides an estimate of physical activity duration, distance, steps and calories expended. The Moves app graphs a storyline of the day by accounting for time spent in travel and visiting destinations. Daily routes are automatically mapped in different colours based on the type of transport (eg, walking, bicycling, and public transit). The company uses ‘commercially reasonable physical and technical safeguards to secure’ user’s data, such as using encryption using secure sockets layer (SSL), but does not guarantee the security of the data, which may be compromised by hardware or software failure or unauthorised entry or use.
Osteoartroosi kardiovaskulaarne profileerimine
Creators: name: Tootsi, Kaspar
name: Märtson, Aare
name: Zilmer, Mihkel
name: Kals, Jaak
Publisher: name: OÜ Celsius Healthcare
Year: 2013
Subjects: osteoartroos, kardiovaskulaarne risk, veresoonte funktsioon, adipokiinid

description: Osteoartroos (OA) on sage krooniline haigus, mis kahjustab liigest tervikuna. Kuna peale liigeseprobleemide esineb nendel haigetel sageli ka kardiovaskulaarsüsteemi haigusi (KVH), tekitab see kokkuvõttes ühiskonnale suure sotsiaal-majandusliku koormuse. OA olulisemateks riskiteguriteks on vanus, rasvumine, traumade esinemine, ülekoormus ning biomehaanilised häired. Haiguse patogenees on mitmeteguriline ja paljuski veel ebaselge. Ühe patogeneetilise kompleksi moodustavad verevarustuse häired ja põletikulised adipokiinid, mis üksteise toimet võimendavad. Lünkade tõttu teadmistes haiguse patogeneesist pole praeguseni efektiivselt haiguse kulgu mõjutavat ravi. Kuna paljud riskitegurid (nt ülekaal, vähene liikumine) ja patofüsioloogilised protsessid (põletik) kattuvad OA ja KVH korral, on alust arvata, et OA ja KVH on omavahel tihedalt seotud. Artiklis on antud lühiülevaade OA patogeneesist, adipokiinide ja veresoontekahjustuse rollist selles.Eesti Arst 2013; 92(11):627–633
description: Eesti Arst, Detsember 2013
On the shape of a rapid hadron in QCD
Creators: name: Blok, B.
name: Frankfurt, L.
name: Strikman, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We visualize the fundamental property of pQCD: the smaller size of the colorless quark-gluon configurations leads to a more rapid increase of its interaction with energy. Within the frame of dipole model we use the $k_t$ factorization theorem to generalize the DGLAP approximation and/or leading $\ln(x_0/x)$ approximation and evaluate the interaction of quark dipole with a target. In the limit of fixed $Q^2$ and $x\to 0$ we found the increase with energy of transverse momenta of quark(antiquark) within q$\bar q$ pair produced by strongly virtual photon. The average $p^2_t$ is evaluated analytically within the double logarithmic approximation. We demonstrate that the invariant mass$^2$ of the q$\bar q$ pair increases with the energy as $M^2_0(x_0/x)^λ$, where $λ\sim 0.4α_sN_c/π$ for transverse photons, and as $\sim M^2_0 \exp{0.17[(4α_sN_c/π)\log(x_0/x)]^{1/2}}$ for longitudinal photons, where $M^2_0 \approx 0.7Q^2$ at the energies of the order $s_0\sim 10^4$ GeV$^2$ ($x_0\sim 10^{-2}$). The magnitude of the effect depends strongly on the small $x$ behavior of the gluon distribution. Similar pattern of the energy dependence of $M^2$ is found in the LO DGLAP approximation generalized to account for $k_t$ factorization. We discuss the impact of the found phenomenon on the dependence of the coherence length on the initial energy and demonstrate that the shape of final hadron state in DIS has biconcave form instead of pancake. Some implications of the found phenomena for the hard processes in pp collisions are discussed.
description: 14 pages, 2 figures, uses epstopdf.sty typos corrected
Particle-Hole Symmetry Breaking and the 5/2 Fractional Quantum Hall Effect
Creators: name: Wang, Hao
name: Sheng, D. N.
name: Haldane, F. D. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the study of the fractional quantum Hall effect at the filling factor 5/2 using exact diagonalization method with torus geometry. The particle-hole symmetry breaking effect is considered using an additional three-body interaction. Both Pfaffian and anti-Pfaffian states can be the ground state depending on the sign of the three-body interaction. The results of the low-energy spectrum, the wave function overlap, and the particle-hole parity evolution, have shown the clear evidence of a direct sharp transition (possibly first-order) from the Pfaffian to the anti-Pfaffian state at the Coulomb point. A quantum phase diagram is established, where one finds further transitions from the Pfaffian or anti-Pfaffian state to the nearby compressible phases induced by a change of the pseudopotential.
description: 4 pages, 4 figures
Gabor wavelet analysis and the fractional Hilbert transform
Creators: name: Chaudhury, Kunal Narayan
name: Unser, Michael
Publisher: name: arXiv
Year: 2009
Subjects: subject: Information Theory (cs.IT)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We propose an amplitude-phase representation of the dual-tree complex wavelet transform (DT-CWT) which provides an intuitive interpretation of the associated complex wavelet coefficients. The representation, in particular, is based on the shifting action of the group of fractional Hilbert transforms (fHT) which allow us to extend the notion of arbitrary phase-shifts beyond pure sinusoids. We explicitly characterize this shifting action for a particular family of Gabor-like wavelets which, in effect, links the corresponding dual-tree transform with the framework of windowed-Fourier analysis. We then extend these ideas to the bivariate DT-CWT based on certain directional extensions of the fHT. In particular, we derive a signal representation involving the superposition of direction-selective wavelets affected with appropriate phase-shifts.
description: 7 pages, 1 figure
The construction of a feedback seismograph station and an analysis of the Long Shot data from the Canadian seismograph stations
Creators: name: Jensen, Oliver George
Publisher: name: University of British Columbia
Year: 2011

description: A practical and versatile feedback seismograph station has been constructed. Using feedback techniques developed by R.D. Meldrum, the relative low frequency response and the damping ratio of a Willmore Mk. I seismometer have been significantly increased for use in a broadband, low frequency bandpass seismograph station. Within limits imposed by a very high ambient ground noise level at the University of British Columbia site, circuit noise and instrument amplifier characteristics, it is possible to vary the damping ratio and resonant period through modification of the feedback loop transfer function. The seismograph has been continuously operating since November 1965 and has recorded over 40 local tremors and distant earthquakes from as far away as the mid Indian Ocean. It has shown that it is a useful demonstration and research instrument. A pilot analysis of the Long Shot nuclear explosion data received by the Canadian seismic stations indicates a consistent compressional first arrival as expected from an impulsive explosion source. Significant travel time discrepancies are observed in the commencement of the P arrival which arrived up to 6 seconds early at all stations with the largest residuals at the most distant sites. A comparison earthquake in the Rat Islands area indicates a similar bias trend. The P arrival amplitudes appear to be anomalously low in the central B.C. area and high in eastern Canada. The effect is also evident in the unified magnitude determinations which are based on these amplitudes. The causes of the variations of magnitudes and the anomalously low amplitudes have not been explained. The average magnitude and standard deviation for all Canadian stations is shown to be 6.01 ±0.40 which agrees well with the world-wide average determination of 5.99 ± 0.52. Spectral investigations demonstrate that there are both common and individual characteristics among the ground amplitude spectra of the different stations. These characteristics have not been correlated to the explosion source mechanism or to geological structure although some causative suggestions have been made.
Nonlocal Entanglement Transformations Achievable by Separable Operations
Creators: name: Chitambar, Eric
name: Duan, Runyao
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For manipulations of multipartite quantum systems, it was well known that all local operations assisted by classical communication (LOCC) constitute a proper subset of the class of separable operations. Recently, Gheorghiu and Griffiths found that LOCC and general separable operations are equally powerful for transformations between bipartite pure states. In this letter we extend this comparison to mixed states and show that in general separable operations are strictly stronger than LOCC when transforming a mixed state to a pure entangled state. A remarkable consequence of our finding is the existence of entanglement monotone which may increase under separable operations.
description: v2 has rephrased Theorem 1 and corrected Kraus operators in Theorem 2. Additional comments are welcomed