cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantifying Uncertainties on the Tip of the Red Giant Branch Method
Creators: name: Madore, Barry F.
name: Owens, Wendy L. Freedman Kayla A.
name: Jang, In Sung
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present an extensive grid of numerical simulations quantifying the uncertainties in measurements of the Tip of the Red Giant Branch (TRGB). These simulations incorporate a luminosity function composed of 2 magnitudes of red giant branch (RGB) stars leading up to the tip, with asymptotic giant branch (AGB) stars contributing exclusively to the luminosity function for at least a magnitude above the RGB tip. We quantify the sensitivity of the TRGB detection and measurement to three important error sources: (1) the sample size of stars near the tip, (2) the photometric measurement uncertainties at the tip, and (3) the degree of self-crowding of the RGB population. The self-crowding creates a population of supra-TRGB stars due to the blending of one or more RGB stars just below the tip. This last population is ultimately difficult, though still possible, to disentangle from true AGB stars. In the analysis given here, the precepts and general methodology as used in the Chicago-Carnegie Hubble Program (CCHP) has been followed. However, in the Appendix, we introduce and test a set of new tip detection kernels which internally incorporate self-consistent smoothing. These are generalizations of the two-step model used by the CCHP (smoothing followed by Sobel-filter tip detection), where the new kernels are based on successive binomial-coefficient approximations to the Derivative-of-a-Gaussian (DoG) edge detector, as is commonly used in modern digital image processing.
description: Accepte to the Astronomical Journal
Auf den Spuren der Meroitischen Kultur. Archäologische Expeditionen der Humboldt-Universität
Creators: name: Hintze, Ursula
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 3 (1995): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Widmung
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 42 Nr. 1/2 (1964)
Titelei
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 42 Nr. 1/2 (1964)
Arms Control, Stability, and Causes of War
Creators: name: Jervis, Robert
Publisher: name: Columbia University
Year: 1991
Subjects: subject: Political science
subject: FOS: Political science
subject: International relations

description: Robert Jervis argues that arms control in the post-Cold War era must be pursued as an adjunct to, not a substitute for, ways of dealing with sources of conflict and methods of managing disputes. He shows that while some of the potential causes of war are likely to lie within the military arena, there is little reason to believe they will be the most potent ones.
A Wide View of the Galactic Globular Cluster NGC 2808: Red Giant and Horizontal Branch Star Spatial Distributions
Creators: name: Johnson, Christian I.
name: Calamida, Annalisa
name: Kader, Justin A.
name: Ferraro, Ivan
name: Pilachowski, Catherine A.
name: Bono, Giuseppe
name: Mastrobuono-Battisti, Alessandra
name: Rest, Armin
name: Zenteno, Alfredo
name: Zocchi, Alice
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Wide-field and deep DECam multi-band photometry, combined with HST data for the core of the Galactic globular cluster NGC 2808, allowed us to study the distribution of various stellar sub-populations and stars in different evolutionary phases out to the cluster tidal radius. We used the C_ugi = (u-g)-(g-i) index to identify three chemically distinct sub-populations along the red giant branch and compared their spatial distributions. The most light-element enriched sub-population (P3) is more centrally concentrated; however, it shows a more extended distribution in the external regions of the cluster compared to the primordial (P1) and intermediate (P2) composition populations. Furthermore, the P3 sub-population centroid is off-center relative to those of the P1 and P2 groups. We also analyzed the spatial distribution of horizontal branch stars and found that the relative fraction of red horizontal branch stars increases for radial distances larger than ~ 1.5' while that of the blue and hotter stars decreases. These new observations, combined with literature spectroscopic measurements, suggest that the red horizontal branch stars are the progeny of all the stellar sub-populations in NGC 2808, i.e. primordial and light-element enhanced, while the blue stars are possibly the result of a combination of the "hot-flasher" and the "helium-enhanced" scenarios. A similar distribution of different red giant branch sub-populations and horizontal branch stars was also found for the most massive Galactic globular cluster, omega Cen, based on combined DECam and HST data, which suggests the two may share a similar origin.
description: Accepted for publication in AJ; 22 pages; 16 figures; the full version of table 2 will be available in electronic form with the published version
The Nubian Collection of the Museum of Fine Arts, Boston
Creators: name: Freed, Rita E.
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 3 (1995): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Sonnenfleckenzeichnung Nr. 118.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 17.05.1990, 07:45, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
RECENZJA KSIĄŻKI ANNY JÓZEFOWICZ, JAROSŁAWA CHACIŃSKIEGO, ELŻBIETY KRYSZTOFIK-GOGOL, TOMASZA ADAMSKIEGO SZTUKA I JEJ MIEJSCE W EDUKACJI MIĘDZYKULTUROWEJ – IDEE, KONCEPCJE I ROZWIĄZANIA METODYCZNE, WYDAWNICTWO ADAM MARSZAŁEK, TORUŃ 2015, SS. 189
Creators: name: Ogrodzka-Mazur, Ewa
Publisher: name: ARS INTER CULTURAS
Year: 2018

description: ARS INTER CULTURAS, Nr 4 (2015): Ars Inter Culturas
Nature of H-alpha selected galaxies at z>2. II. Clumpy galaxies and compact star-forming galaxies
Creators: name: Tadaki, Ken-ichi
name: Kodama, Tadayuki
name: Tanaka, Ichi
name: Hayashi, Masao
name: Koyama, Yusei
name: Shimakawa, Rhythm
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the morphological properties of 109 Hα-selected galaxies at z>2 in SXDF-UDS-CANDELS field. With high-resolution optical/near-infrared images obtained by Hubble Space Telescope, we identify giant clumps within the Hαemitters (HAEs). We find that at least 41% of our sample show clumpy structures in the underlying disks. The color gradient of clumps is commonly seen in the sense that the clumps near the galactic center tend to be redder than those in the outer regions. The mid-infrared detection in galaxies with red clumps and the spatial distribution of Hαemission suggest that dusty star-formation activity is probably occurring in the nuclear red clumps. A gas supply to a bulge component through the clump migration is one of the most potent physical processes to produce such dusty star-forming clumps and form massive bulges in local early-type galaxies. They would become large quiescent galaxies at later times just by consumption or blowout of remaining gas. Also, while most of the HAEs have extended disks, we observe two massive, compact HAEs, whose stellar surface densities are significantly higher. They are likely to be the direct progenitors of massive, compact quiescent galaxies at z=1.5-2.0. Two evolutionary paths to massive quiescent galaxies are devised to account for both the size growth of quiescent galaxies and their increased number density from z~2 to z=0.
description: 13 pages, 11 figures; accepted for publication in ApJ
The formulation of gauge-Higgs unification with dynamical boundary conditions
Creators: name: Yamamoto, Kengo
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The boundary conditions on multiply connected extra dimensions play major rolls in gauge-Higgs unification theory. Different boundary conditions, having been given in ad hoc manner so far, lead to different theories. To solve this arbitrariness problem of boundary conditions, we construct a formulation of gauge-Higgs unification with dynamics of boundary conditions on M^4 times S^1/Z_2. As a result, it is found that only highly restricted sets of boundary conditions, which lead to nontrivial symmetry breaking, practically contribute to the partition function. In particular, we show that for $SU(5)$ gauge group, sets of boundary conditions which lead to SU(5) to SU(3) times SU(2) times U(1) symmetry breaking are naturally included in the restricted sets.
description: 19 pages. The discussion in section 3 was changed, Some typos and expressions have been corrected
Survey in the Northern Sudan 1993-1995
Creators: name: Welsby, Derek A.
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 3 (1995): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Sonnenfleckenzeichnung Nr. 169.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 12.07.1990, 07:00, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
The Open Cluster Chemical Analysis and Mapping Survey: Local Galactic Metallicity Gradient with APOGEE using SDSS DR10
Creators: name: Frinchaboy, Peter M.
name: Thompson, Benjamin
name: Jackson, Kelly M.
name: O'Connell, Julia
name: Meyer, Brianne
name: Zasowski, Gail
name: Majewski, Steven R.
name: Chojnowksi, S. Drew
name: Johnson, Jennifer A.
name: Prieto, Carlos Allende
name: Beers, Timothy C.
name: Bizyaev, Dmitry
name: Brewington, Howard
name: Cunha, Katia
name: Ebelke, Garrett
name: Perez, Ana Elia Garcia
name: Hearty, Frederick R.
name: Holtzman, Jon
name: Kinemuchi, Karen
name: Malanushenko, Elena
name: Malanushenko, Viktor
name: Marchante, Moses
name: Meszaros, Szabolcs
name: Muna, Demitri
name: Nidever, David L.
name: Oravetz, Daniel
name: Pan, Kaike
name: Schiavon, Ricardo P.
name: Schneider, Donald P.
name: Shetrone, Matthew
name: Simmons, Audrey
name: Snedden, Stephanie
name: Smith, Verne V.
name: Wilson, John C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Open Cluster Chemical Analysis and Mapping (OCCAM) Survey aims to produce a comprehensive, uniform, infrared-based dataset for hundreds of open clusters, and constrain key Galactic dynamical and chemical parameters from this sample. This first contribution from the OCCAM survey presents analysis of 141 members stars in 28 open clusters with high-resolution metallicities derived from a large uniform sample collected as part of the SDSS-III/Apache Point Observatory Galactic Evolution Experiment (APOGEE). This sample includes the first high-resolution metallicity measurements for 22 open clusters. With this largest ever uniformly observed sample of open cluster stars we investigate the Galactic disk gradients of both [M/H] and [alpha/M]. We find basically no gradient across this range in [alpha/M], but [M/H] does show a gradient for R_{GC} < 10 kpc and a significant flattening beyond R_{GC} = 10 kpc. In particular, whereas fitting a single linear trend yields an [M/H] gradient of -0.09 +/- 0.03$ dex/kpc --- similar to previously measure gradients inside 13 kpc --- by independently fitting inside and outside 10 kpc separately we find a significantly steeper gradient near the Sun (7.9 <= R_{GC} <= 10) than previously found (-0.20 +/- 0.08 dex/kpc) and a nearly flat trend beyond 10 kpc (-0.02 +/- 0.09 dex/kpc).
description: 6 pages, 4 figures, ApJ letters, in press
Making Rights Real: Effectuating the Due Process Rights of Particularly Vulnerable Immigrants in Removal Proceedings Through Administrative Mechanisms
Creators: name: Gradilla, Miguel A.
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Emigration and immigration law
subject: Due process of law
subject: Law
subject: FOS: Law
subject: Public policy (Law)

description: Immigration removal proceedings provide insufficient due process protections to certain immigrants. Vulnerable immigrants who cannot adequately represent themselves are expected to do so even if they cannot afford an attorney or qualified Board of Immigration Appeals (BIA) representative. This Note argues that the Department of Justice’s (DOJ) Executive Office of Immigration Review (EOIR) can and should pass regulations that safeguard particularly vulnerable immigrants’ due process rights. These regulations should instruct immigration judges (IJ) to affirmatively determine whether due process requires that a qualified legal representative—either an attorney or BIA representative—advocate for a particularly vulnerable immigrant in a removal proceeding before an IJ decides the case on its merits. The rules would constitute an administrative framework that safeguards immigrants’ due process rights. This proposed administrative framework is rooted in a reading of current common and statutory law that allows the Attorney General to delegate the necessary authority to IJs to effectuate the suggested regime.
Das DFG-Projekt „Ausgrabungen in Musawwarat es Sufra“
Creators: name: Wenig, Steffen
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 3 (1995): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
A Brief Review of Nature-Inspired Algorithms for Optimization
Creators: name: Fister, Iztok
name: Yang, Xin-She
name: Fister, Iztok
name: Brest, Janez
name: Fister, Dušan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Swarm intelligence and bio-inspired algorithms form a hot topic in the developments of new algorithms inspired by nature. These nature-inspired metaheuristic algorithms can be based on swarm intelligence, biological systems, physical and chemical systems. Therefore, these algorithms can be called swarm-intelligence-based, bio-inspired, physics-based and chemistry-based, depending on the sources of inspiration. Though not all of them are efficient, a few algorithms have proved to be very efficient and thus have become popular tools for solving real-world problems. Some algorithms are insufficiently studied. The purpose of this review is to present a relatively comprehensive list of all the algorithms in the literature, so as to inspire further research.
Bemerkungen zum Schutz der Denkmäler von Musawwarat es Sufra vor Wind- und Sanderosion
Creators: name: Wolf, Pawel
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 3 (1995): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Sonnenfleckenzeichnung Nr. 149.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 20.06.1990, 09:15, erstellt von Michele Bianda, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 122.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 22.05.1990, 08:00, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Columbia University Advanced Concepts Data Center Pilot: Final Report
Creators: name: Crosswell, Alan
name: Hamilton, Victoria
Publisher: name: Columbia University
Year: 2013
Subjects: Management
Information technology

description: Columbia University Information Technology (CUIT) piloted advanced concepts data center techniques that emphasized rigorous before-and-after measurements of a series of recommended best practices and innovative equipment and infrastructure improvements in a real-world setting. The measurements were used to (a) monitor whether changes targeted to improve the energy efficiency and environmental impact of the primarily administrative systems currently in the centralized data center were, in fact, effective, and (b) to simultaneously expand the constrained computational capacity of the facility as a result of those improvements. CUIT included participation and critique from influential skeptics from commencement of the project. Two academic departments piloted a shared high performance computing cluster within the Data Center. As a result of this project, Columbia University continues to realize significant energy and environmental gains while demonstrating economic and operational feasibility in infrastructure improvements, uses of innovative computational equipment for both centralized administrative systems and research computing clusters.
Dynamical Supergravity Breaking via the Super-Higgs Effect Revisited
Creators: name: Alexandre, Jean
name: Houston, Nick
name: Mavromatos, Nick E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the dynamical breaking of local supersymmetry (supergravity), including the Deser-Zumino super-Higgs effect, via the corresponding one-loop effective potential for the simple but quite representative cases of N=1, D=4 simple supergravity and a (simplified) conformal version of it. We find solutions to the effective equations which indicate dynamical generation of a gravitino mass, thus breaking supergravity. In the case of conformal supergravity models, the gravitino mass can be much lower than the Planck scale, for global supersymmetry breaking scales below the Grand Unification scale. The absence of instabilities in the effective potential arising from the quantum fluctuations of the metric field is emphasised, contrary to previous claims in the literature.
description: 24 pages, revtex, 4 pdf figures incorporated
Carrier-Density Control of the Quantum-Confined 1$T$-TiSe$_2$ Charge-Density-Wave
Creators: name: Jaouen, T.
name: Pulkkinen, A.
name: Rumo, M.
name: Kremer, G.
name: Salzmann, B.
name: Nicholson, C. W.
name: Mottas, M. -L.
name: Giannini, E.
name: Tricot, S.
name: Schieffer, P.
name: Hildebrand, B.
name: Monney, C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using angle-resolved photoemission spectroscopy, combined with first principle and coupled self-consistent Poisson-Schrödinger calculations, we demonstrate that potassium (K) atoms adsorbed on the low-temperature phase of 1$T$-TiSe$_2$ induce the creation of a two-dimensional electron gas (2DEG) and quantum confinement of its charge-density-wave (CDW) at the surface. By further changing the K coverage, we tune the carrier-density within the 2DEG that allows us to nullify, at the surface, the electronic energy gain due to exciton condensation in the CDW phase while preserving a long-range structural order. Our study constitutes a prime example of a controlled exciton-related many-body quantum state in reduced dimensionality by alkali-metal dosing.
description: 6 pages, 3 figures, accepted for publication in Physical Review Letters
Identification of known and novel pancreas genes expressed downstream of Nkx2.2 during development
Creators: name: Sussel, Lori
name: Kaestner, Klaus
name: Anderson, Keith
name: White, Peter
Publisher: name: Columbia University
Year: 2009
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: The homeodomain containing transcription factor Nkx2.2 is essential for the differentiation of pancreatic endocrine cells. Deletion of Nkx2.2 in mice leads to misspecification of islet cell types; insulin-expressing β cells and glucagon-expressing α cells are replaced by ghrelin-expressing cells. Additional studies have suggested that Nkx2.2 functions both as a transcriptional repressor and activator to regulate islet cell formation and function. To identify genes that are potentially regulated by Nkx2.2 during the major wave of endocrine and exocrine cell differentiation, we assessed gene expression changes that occur in the absence of Nkx2.2 at the onset of the secondary transition in the developing pancreas. Microarray analysis identified 80 genes that were differentially expressed in e12.5 and/or e13.5 Nkx2.2-/- embryos. Some of these genes encode transcription factors that have been previously identified in the pancreas, clarifying the position of Nkx2.2 within the islet transcriptional regulatory pathway. We also identified signaling factors and transmembrane proteins that function downstream of Nkx2.2, including several that have not previously been described in the pancreas. Interestingly, a number of known exocrine genes are also misexpressed in the Nkx2.2-/- pancreas. Expression profiling of Nkx2.2-/- mice during embryogenesis has allowed us to identify known and novel pancreatic genes that function downstream of Nkx2.2 to regulate pancreas development. Several of the newly identified signaling factors and transmembrane proteins may function to influence islet cell fate decisions. These studies have also revealed a novel function for Nkx2.2 in maintaining appropriate exocrine gene expression. Most importantly, Nkx2.2 appears to function within a complex regulatory loop with Ngn3 at a key endocrine differentiation step.
RECENZJA KSIĄŻKI ALINY SZCZUREK-BORUTY O PRZYGOTOWANIU NAUCZYCIELI DO PRACY W WARUNKACH WIELOKULTUROWOŚCI – KONTEKSTY, OPINIE STUDENTÓW, PROPOZYCJE, WYDAWNICTWO ADAM MARSZAŁEK, TORUŃ 2014, SS. 300
Creators: name: Szwarc, Alina
Publisher: name: ARS INTER CULTURAS
Year: 2018

description: ARS INTER CULTURAS, Nr 4 (2015): Ars Inter Culturas
Editorial
Creators: name: Wenig, Steffen
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 3 (1995): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Sonnenfleckenzeichnung Nr. 38.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 15.02.1990, 08:15, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Rethinking Rewriting: Tribal Constitutional Amendment And Reform
Creators: name: Hipp, Jason P.
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Constitutions
subject: Tribes
subject: Indians
subject: Law
subject: FOS: Law
subject: Indians of North America

description: This Essay examines the recent wave of American Indian tribal constitutional change through the framework of subnational constitutional theory. When tribes rewrite their constitutions, they not only address internal tribal questions and communicate tribal values, but also engage with other subnational entities, i.e. states, and the federal government. This Essay applies that framework to a study of tribal constitutional amendment and reform procedures. Focusing on the processes of constitutional change produces insight into tribes' status as “domestic dependent sovereigns” in the contemporary era of self-determination, a status reflected in the opportunities, and limitations, inherent in tribal constitutions. In so doing, this Essay aims to highlight an aspect of tribal constitution writing that enables successful reform and communicates the significance and goals of constitutionalism within the tribal context.
Sonnenfleckenzeichnung Nr. 79.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 31.03.1990, 07:30, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 106.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 05.05.1990, 08:15, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
CONTEMPORARY ISSUES OF MUSIC EDUCATION THEORY AND PRACTICE FROM THE VISEGRAD COUNTRIES PHD STUDENTS’ POINT OF VIEW, PRAGUE 2015
Creators: name: Slavíková, Marie
name: Kodejška, Miloš
Publisher: name: ARS INTER CULTURAS
Year: 2018

description: ARS INTER CULTURAS, Nr 4 (2015): Ars Inter Culturas
Using Pressure to Unravel the Structure-Dynamic-Disorder Relationship in Metal Halide Perovskites
Creators: name: Xu, Kai
name: Pérez-Fidalgo, Luis
name: Charles, Bethan L.
name: Weller, Mark T.
name: Alonso, M. Isabel
name: Goñi, Alejandro R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences
subject: A.m

description: The exceptional optoelectronic properties of metal halide perovskites (MHPs) are presumed to arise, at least in part, from the peculiar interplay between the inorganic metal-halide sublattice and the atomic or molecular cations enclosed in the cage voids. The latter can exhibit a roto-translative dynamics, which is shown here to be at the origin of the structural behavior of MHPs as a function of temperature, pressure and composition. The application of high hydrostatic pressure allows for unraveling the nature of the interaction between both sublattices, characterized by the simultaneous action of hydrogen bonding and steric hindrance. In particular, we find that under the conditions of unleashed cation dynamics, the key factor that determines the structural stability of MHPs is the repulsive steric interaction rather than hydrogen bonding. Taking as example the results from pressure and temperature-dependent photoluminescence and Raman experiments on MAPbBr$_3$ but also considering the pertinent MHP literature, we provide a general picture about the relationship between the crystal structure and the presence or absence of cationic dynamic disorder. The reason for the structural sequences observed in MHPs with increasing temperature, pressure, A-site cation size or decreasing halide ionic radius is found principally in the strengthening of the dynamic steric interaction with the increase of the dynamic disorder. In this way, we have deepened our fundamental understanding of MHPs; knowledge that could be coined to improve performance in future optoelectronic devices based on this promising class of semiconductors.
description: 24 pages, 6 figures. Submitted to Sci. Rep. (under review)
Physical Constraints On Fast Radio Burst
Creators: name: Luan, Jing
name: Goldreich, Peter
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Fast Radio Bursts (FRBs) are isolated, $\ms$ radio pulses with dispersion measure (DM) of order $10^3\DMunit$. Galactic candidates for the DM of high latitude bursts detected at $\GHz$ frequencies are easily dismissed. DM from bursts emitted in stellar coronas are limited by free-free absorption and those from HII regions are bounded by the nondetection of associated free-free emission at radio wavelengths. Thus, if astronomical, FRBs are probably extra-galactic. FRB 110220 has a scattering tail of $\sim 5.6\pm 0.1 \ms$. If the electron density fluctuations arise from a turbulent cascade, the scattering is unlikely to be due to propagation through the diffuse intergalactic plasma. A more plausible explanation is that this burst sits in the central region of its host galaxy. Pulse durations of order $\ms$ constrain the sizes of FRB sources implying high brightness temperatures that indicates coherent emission. Electric fields near FRBs at cosmological distances would be so strong that they could accelerate free electrons from rest to relativistic energies in a single wave period.
description: 5 pages, accepted by ApJL
Molecular dynamics simulation study on Bacillus subtilis EngA: the presence of Mg2+ at the active-sites promotes the functionally important conformation
Creators: name: Upendra, N.
name: Kavya, K. M.
name: Krishnaveni, S.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Computational Biology

description: EngA, a GTPase contains two GTP binding domains [GD1, GD2], and the C-terminal KH domain shown to be involved in the later stages of ribosome maturation. Association of EngA to the ribosomal subunit in the intermediate stage of maturation is essential for complete ribosome maturation. However, this association was shown to be dependent on the nucleotide bound combinations. This nucleotide dependent association tendency is attributed to the conformational changes that occur among different nucleotide bound combinations. Therefore, to explore the conformational changes, all-atom molecular dynamics simulations for Bacillus subtilis EngA in different nucleotide bound combinations along with the presence or absence of Mg2+ in the active-sites were carried out. The presence of Mg2+ along with the bound nucleotide at the GD2 active-site dictates the GD2-Sw-II mobility, but the GD1-Sw-II mobility has not shown any nucleotide or Mg2+ dependent movement. However, the GD1-Sw-II secondary conformations are shown to be influenced by the GD2 nucleotide bound state. This allosteric connection between the GD2 active-site and the GD1-Sw-II is also observed through the dynamic network analysis. Further, the exploration of the GD1-KH interface interactions exhibited a more attractive tendency when GD1 is bound to GTP-Mg2+. In addition, the presence of Mg2+ stabilizes active-site water and also increases the distances between the α- and γ- phosphates of the bound GTP. Curiously, three water molecules in the GD1 active-site and only one water molecule in the GD2 active-site are stabilized. This indicates that the probability of GTP hydrolysis is more in GD1 compared to GD2. Communicated by Ramaswamy H. Sarma
Sonnenfleckenzeichnung Nr. 28.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 03.02.1990, 08:15, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Identifying rare disease variants in the Genetic Analysis Workshop 17 simulated data: a comparison of several statistical approaches
Creators: name: Fan, Ruixue
name: Huang, Chien-Hsun
name: Lo, Shaw-Hwa
name: Zheng, Tian
name: Ionita-Laza, Iuliana
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biometry

description: Genome-wide association studies have been successful at identifying common disease variants associated with complex diseases, but the common variants identified have small effect sizes and account for only a small fraction of the estimated heritability for common diseases. Theoretical and empirical studies suggest that rare variants, which are much less frequent in populations and are poorly captured by single-nucleotide polymorphism chips, could play a significant role in complex diseases. Several new statistical methods have been developed for the analysis of rare variants, for example, the combined multivariate and collapsing method, the weighted-sum method and a replication-based method. Here, we apply and compare these methods to the simulated data sets of Genetic Analysis Workshop 17 and thereby explore the contribution of rare variants to disease risk. In addition, we investigate the usefulness of extreme phenotypes in identifying rare risk variants when dealing with quantitative traits. Finally, we perform a pathway analysis and show the importance of the vascular endothelial growth factor pathway in explaining different phenotypes.
MIĘDZYNARODOWA KONFERENCJA PEDAGOGIKA MUZYCZNA W KONTYNUACJI I PRZEŁOMIE – HISTORYCZNE PERSPEKTYWY I WSPÓŁCZESNE ODNIESIENIA W EUROPEJSKIM KONTEKŚCIE AKADEMIA POMORSKA W SŁUPSKU, 16-18 PAŹDZIERNIKA 2014 ROKU
Creators: name: Chaciński, Jarosław
Publisher: name: ARS INTER CULTURAS
Year: 2018

description: ARS INTER CULTURAS, Nr 4 (2015): Ars Inter Culturas
Foreclosures and Financial Aid: Mind Over Mortgages in Closing the Plus Loan Gap
Creators: name: Wolff Dean, Kamille
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Educational law and legislation
subject: Middle class--Economic conditions
subject: Foreclosure
subject: Student financial aid administration
subject: Law
subject: FOS: Law
subject: Education

description: Renewed discussion has recently emerged to help strengthen the middle class by increasing access to college. President Barack Obama is at the forefront of the discussion to make college more affordable by prompting universities to become more efficient. Using education as a gateway to success, the Obama Administration proposed a number of initiatives to deter college spending and promote financial aid accountability. This Article analyzes the nuances in financial aid that stem from the Higher Education Act of 1965 (“HEA”), which is set for reauthorization in 2014. The Article addresses an array of inherent problems in the current student loan industry, particularly as the student aid system relates to the federal Parent Loan for Undergraduate Students (“PLUS”) loan program. Specifically, the discussion defines the scope of consumer financial reform pertaining to student loans, and proposes adequate revision to the student loan provisions of the HEA to soundly provide college funding to financially distressed students and their families. The discussion also proposes a number of recommendations and best practices for relieving the heavy burden of student loan debt carried by Americans that now amounts to over 1 trillion dollars. The movement towards eroding wealth inequality through the attainment of higher education emerges as a viable opportunity for promoting innovative reform in the student loan industry. Such action is plausible considering the reauthorization of the HEA that is presently under consideration. This Article analyzes the new programs related to the agenda of lowering student debt while expanding affordable credit to attend college. Emerging student loan products are evaluated and refined to offer suggestions for the equitable implementation and enforcement of revised student loan terms.
Tribe-Sanctioned Nuclear Waste Facilities and Their Involuntary Neighbors
Creators: name: Nelson, R. Benjamin
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Indians of North America
subject: Environmental law
subject: Radioactive waste disposal
subject: Law
subject: FOS: Law
subject: Indians

description: In 2010, President Barack Obama appointed the Blue Ribbon Commission on America’s Nuclear Future (BRC) in order to study options for dealing with nuclear waste as alternatives to replace permanent disposal at Yucca Mountain, Nevada. The BRC recommended a new voluntary siting mechanism based on the Nuclear Waste Negotiator (NWN), an expired program decried as “radioactive racism” for its almost exclusive focus on Native Americans. The NWN inspired numerous articles supporting or opposing tribes’ efforts to host nuclear waste facilities. Rather than focus on the tribal majorities that have pursued such facilities, as previous scholarship has done, this Note refocuses the analysis on the substantial tribal minorities that have actively opposed their leaderships’ decisions to host such facilities. The Note has two main goals. First, it seeks to elucidate the uphill legal battle that minority tribe members face under current law if they decide to challenge the Bureau of Indian Affairs’ approval of the lease for a facility that their tribal leadership has signed. Second, it offers specific recommendations for Congress to implement as part of its impending nuclear waste legislation.
MAŁA OJCZYZNA (HEIMAT) JAKO PRAWO I OBOWIĄZEK – WYZWANIA W EUROPEJSKIM KONTEKŚCIE. WYKŁAD NA SPOTKANIU REGIONALNYM (HEIMATSTREFFEN) W GUMMERSNACH – ZIELONE ŚWIĄTKI 2015
Creators: name: Ehrenforth, Karl Heinrich
Publisher: name: ARS INTER CULTURAS
Year: 2018

description: ARS INTER CULTURAS, Nr 4 (2015): Ars Inter Culturas
Inhalt
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 3 (1995): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Intrinsic paramagnetism and aggregation of manganese dopants in SrTiO$_3$
Creators: name: Zorko, Andrej
name: Pregelj, Matej
name: Luetkens, Hubertus
name: Axelsson, Anna-Karin
name: Valant, Matjaz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using local-probe magnetic-characterization techniques of muon spin relaxation ($μ$SR) and electron spin resonance (ESR) we have investigated the Mn-induced magnetism of the wide-bandgap perovskite SrTiO$_3$. Our results clearly demonstrate that this diluted magnetic oxide (DMO) remains paramagnetic down to low temperatures for both doping cases, i.e., when Mn substitutes for Sr or Ti. In addition, both experimental techniques have unveiled that the distribution of individual Mn$^{2+}$ and Mn$^{4+}$ ions is nonrandom, as these ions partially aggregate into nanosized clusters.
description: a few minor changes were made
Stolen Happiness
Creators: name: Bermudez, Fernando
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Criminal law
subject: Race relations
subject: False imprisonment
subject: Human rights
subject: Law
subject: FOS: Law
subject: Criminology

description: The wrongful arrest and conviction of Fernando Bermudez demonstrates the American criminal justice system being forced to correct itself, despite public faith in jury trials, because Mr. Bermudez fought to exonerate himself after losing ten appeals. Mr. Bermudez’s essay entails his over eighteen-year wrongful incarceration in New York until proven “actually innocent” in 2009. This essay urges reform and accountability of mistaken eyewitness identification, perjured testimony, and police and prosecutorial misconduct as factors that began Mr. Bermudez’s ordeal in 1991. In particular, this essay examines how race, rushed judgment, and profit may have contributed to Mr. Bermudez’s ordeal while aiming to prevent the overall public safety and human rights problem of the innocent in prison and mass incarceration.