oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 19 )

2019 ( 220 )

2018 ( 286 )

2017 ( 287 )

Custom range...

Search Results: 1 - 10 of 150043 matches for " H. Veit "
All listed articles are free for downloading (OA Articles)
Page 1 /150043
Display every page Item
Environmental changes and pre-Columbian human influence in the Amazon region – an introduction
H. Veit
Geographica Helvetica (GH) , 2012,
Abstract: No abstract available.
Die Chirurgie der abdominellen Aorta bei Dissektionen, Aneurysmen und Ruptur
Veit FH,Deutsch M,Mendel H
Journal für Kardiologie , 2001,
Abstract: Das chirurgische Standardverfahren in der Behandlung geschlossener oder rupturierter abdomineller Aneurysmen ist die "offene" Dissektionsresektion. Mit diesem invasiven konventionellen Verfahren sind alle Formen abdomineller Aneurysmen behandelbar. Bei Patienten mit niedrigem Risikoprofil ist die perioperative Mortalit t gering und das Langzeitergebnis ausgezeichnet. Die transfemorale minimal invasive Implantation von Endoprothesen ist bei ausgew hlten Patienten mit geeigneter Anatomie eine befriedigende Alternative. Die perioperative Mortalit t ist auch beim Hochrisikopatienten gering. Der ungewisse Langzeitverlauf erfordert eine lebenslange Observanz des Aneurysmas.
Review of past and recent fluvial dynamics in the Beni lowlands, NE Bolivia
A. Plotzki, J.-H. May,H. Veit
Geographica Helvetica (GH) , 2012,
Abstract: No abstract available.
The Arabidopsis AtRaptor genes are essential for post-embryonic plant growth
Garrett H Anderson, Bruce Veit, Maureen R Hanson
BMC Biology , 2005, DOI: 10.1186/1741-7007-3-12
Abstract: We identified AtRaptor1A and AtRaptor1B, two loci predicted to encode Raptor proteins in Arabidopsis. Disruption of AtRaptor1B yields plants with a wide range of developmental defects: roots are thick and grow slowly, leaf initiation and bolting are delayed and the shoot inflorescence shows reduced apical dominance. AtRaptor1A AtRaptor1B double mutants show normal embryonic development but are unable to maintain post-embryonic meristem-driven growth. AtRaptor transcripts accumulate in dividing and expanding cells and tissues.The data implicate the TOR signaling pathway, a major regulator of cell growth in yeast and metazoans, in the maintenance of growth from the shoot apical meristem in plants. These results provide insights into the ways in which TOR/Raptor signaling has been adapted to regulate plant growth and development, and indicate that in plants, as in other eukaryotes, there is some Raptor-independent TOR activity.Plant development is remarkably plastic. Groups of totipotent cells termed meristems, which are maintained throughout the life of the plant, give rise to all post-embryonic organs from roots and leaves to petals and fruit. This allows plants, unlike metazoans, to change their final body plans dramatically in response to environmental, hormonal and nutritional cues. While much has been learned about the determination of cell fates in the embryo [1] and the apical meristems [2-4], less is known about the genes that control the growth that occurs in cells emerging from the plant meristem.TOR proteins were originally identified in budding yeast as the targets of rapamycin, a potent antibiotic that disrupts cell growth [5,6]. In both yeast and metazoans, TOR proteins mediate translation in response to nutrients [7]. Yeast TOR2 and mammalian mTOR also regulate cytoskeletal organization [8-13].In both yeast and mammalian cells, TOR proteins form a complex, TORC1, with GβL [14] and Raptor (regulatory associated protein of TOR) [15-17]; their yeast homolo
Eco-archaeological regions in the Bolivian Amazon
U. Lombardo, E. Canal-Beeby,H. Veit
Geographica Helvetica (GH) , 2012,
Abstract: No abstract available.
Exposure dating of Late Glacial and pre-LGM moraines in the Cordon de Do a Rosa, Northern/Central Chile (~31° S)
R. Zech, Ch. Kull, P. W. Kubik,H. Veit
Climate of the Past (CP) & Discussions (CPD) , 2007,
Abstract: Despite the important role of the Central Andes (15–30° S) for climate reconstruction, knowledge about the Quaternary glaciation is very limited due to the scarcity of organic material for radiocarbon dating. We applied 10Be surface exposure dating (SED) on 22 boulders from moraines in the Cordon de Do a Rosa, Northern/Central Chile (~31° S). The results show that several glacial advances in the southern Central Andes occurred during the Late Glacial between ~14.7±1.5 and 11.6±1.2 ka. A much more extensive glaciation is dated to ~32±3 ka, predating the temperature minimum of the global LGM (Last Glacial Maximum: ~20 ka). Reviewing these results in the paleoclimatic context, we conclude that the Late Glacial advances were most likely caused by an intensification of the tropical circulation and a corresponding increase in summer precipitation. High-latitude temperatures minima, e.g. the Younger Dryas (YD) and the Antarctic Cold Reversal (ACR) may have triggered individual advances, but current systematic exposure age uncertainties limit precise correlations. The absence of LGM moraines indicates that moisture advection was too limited to allow significant glacial advances at ~20 ka. The tropical circulation was less intensive despite the maximum in austral summer insolation. Winter precipitation was apparently also insufficient, although pollen and marine studies indicate a northward shift of the westerlies at that time. The dominant pre-LGM glacial advances in Northern/Central Chile at ~32 ka required lower temperatures and increased precipitation than today. We conclude that the westerlies were more intense and/or shifted equatorward, possibly due to increased snow and ice cover at higher southern latitudes coinciding with a minimum of insolation.
LGM and Late Glacial glacier advances in the Cordillera Real and Cochabamba (Bolivia) deduced from 10Be surface exposure dating
R. Zech, Ch. Kull, P. W. Kubik,H. Veit
Climate of the Past (CP) & Discussions (CPD) , 2007,
Abstract: Surface exposure dating (SED) is an innovative tool already being widely applied for moraine dating and for Late Quaternary glacier and climate reconstruction. Here we present exposure ages of 28 boulders from the Cordillera Real and the Cordillera Cochabamba, Bolivia. Our results indicate that the local Last Glacial Maximum (LGM) in the Eastern Cordilleras occurred at ~22–25 ka and was thus synchronous to the global temperature minimum. We were also able to date several Late Glacial moraines to ~11–13 ka, which likely document lower temperatures and increased precipitation ("Coipasa" humid phase). Additionally, we recognize the existence of older Late Glacial moraines re-calculated to ~15 ka from published cosmogenic nuclide data. Those may coincide with the cold Heinrich 1 event in the North Atlantic region and the pronounced "Tauca" humid phase. We conclude that (i) exposure ages in the tropical Andes may have been overestimated so far due to methodological uncertainties, and (ii) although precipitation plays an important role for glacier mass balances in the tropical Andes, it becomes the dominant forcing for glaciation only in the drier and thus more precipitation-sensitive regions farther west and south.
LGM and Late Glacial glacier advances in the Cordillera Real and Cochabamba (Bolivia) deduced from 10Be surface exposure dating
R. Zech,Ch. Kull,P. W. Kubik,H. Veit
Climate of the Past Discussions , 2007,
Abstract: Surface exposure dating (SED) is an innovative tool being already widely applied for moraine dating and for Late Quaternary glacier and climate reconstruction. Here we present exposure ages of 28 boulders from the Cordillera Real and the Cordillera Cochabamba, Bolivia. Our results indicate that the local Last Glacial Maximum (LGM) in the Eastern Cordilleras occurred at ~22–25 ka and thus synchronous to the global temperature minimum. We were also able to date several Late Glacial moraines to ~11–13 ka, which likely document lower temperatures and increased precipitation ("Coipasa" humid phase). Additionally, we recognize the existence of older Late Glacial moraines re-calculated to ~15 ka from published cosmogenic nuclide data. Those may coincide with the cold Heinrich 1 event in the North Atlantic region and the pronounced "Tauca" humid phase. We conclude that (i) exposure ages in the tropical Andes may have been substantially overestimated so far due to methodological uncertainties, and (ii) although precipitation plays an important role for glacier mass balances in the tropical Andes, it becomes the dominant forcing for glaciation only in the drier and thus more precipitation-sensitive regions further west and south.
Constitutionalizing secularism, alternative secularisms or liberal-democratic constitutionalism? A critical reading of some Turkish, ECtHR and Indian Supreme Court cases on ‘secularism’
Veit Bader
Utrecht Law Review , 2010,
Abstract: In recent debates on the constitutional status of 'secularism' we can discern three positions. The first tries to overcome the absence of 'secularism' in most liberal-democratic constitutions by developing a more robust theory of constitutional secularism. The second develops theories of 'alternative secularisms'. The third, defended in this article, argues that we should drop secularism as a 'cacophonous' concept from our constitutional and legal language and replace it by liberal-democratic constitutionalism. I develop an analytical taxonomy of twelve different meanings of 'secularism' based on a comparative study of Turkish and Indian Supreme Court cases on secularism, and demonstrate that they are incompatible with each other and with the hard core of liberal-democratic constitutions. Next, I criticize the respective rulings in the Turkish and Indian context. Particularly in 'militant democracies', the appeal to a principle of 'secularism' turns out to be inimical to the liberal and to the democratic 'constitutional essentials'. I end with some normative recommendations on the role of constitutional review and judicial activism.
The Community College Library in the United States
  Fritz Veit
Journal of Library and Information Science , 1975,
Abstract: 頁次:36-48
Page 1 /150043
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.