Results 71 to 80 of about 48,206 (220)

Scientists’ warning on the global destruction of rock outcrop ecosystems

Conservation Biology, EarlyView.
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula, Lucas N. Perillo, Gianluigi Ottaviani, Flávio F. Carmo, Mandar N. Datar, Katherine C. Enebeli‐Ekwutoziam, Bruno Fogliani, Stephen D. Hopper, Aboli Kulkarni, Hans Lambers, Rafael F. Magalhães, Frederico S. Neves, Jean‐François Ponge, Stefan Porembski, Bruno H. P. Rosado, Fernando M. G. Santos, Elycée Tindano, Bram Vanschoenwinkel, Aparna Watve, Fernando A. O. Silveira   +19 more
wiley   +1 more source

The Generalized Green-Schwarz Mechanism for Type IIB Orientifolds with D3- and D7-Branes

, 2009
In this paper, we work out in detail the tadpole cancellation conditions as well as the generalized Green-Schwarz mechanism for type IIB orientifold compactifications with D3- and D7-branes.
A. Collinucci, A. Font, B.S. Acharya, C. Bachas, C. Beasley, C. Beasley, C.A. Scrucca, D.S. Freed, E. Bergshoeff, E.I. Buchbinder, Erik Plauschinn, F.G. Marchesano Buznego, G. Aldazabal, I. Brunner, J. Marsano, J. Marsano, J.J. Heckman, J.J. Heckman, J.J. Heckman, J.P. Conlon, J.P. Conlon, K. Dasgupta, K. Hristov, M. Bianchi, M. Mariño, M. Wijnholt, M.B. Green, M.R. Douglas, P. Aluffi, P.S. Aspinwall, R. Blumenhagen, R. Blumenhagen, R. Donagi, R. Minasian, S. Kachru, S.H. Katz, V. Balasubramanian   +36 more
core   +1 more source

Decoupling A and B model in open string theory -- Topological adventures in the world of tadpoles [PDF]

, 2009
In this paper we analyze the problem of tadpole cancellation in open topological strings. We prove that the inclusion of unorientable worldsheet diagrams guarantees a consistent decoupling of A and B model for open superstring amplitudes at all genera ...
, A. Collinucci, Alessandro Tanzini, Andrea Prudenziati, B.S. Acharya, C. Liu, C. Vafa, D. Gaiotto, D. Krefl, D. Krefl, D.-E. Diaconescu, D.L. Jafferis, E. Witten, F. Hirzebruch, G. Bonelli, Giulio Bonelli, H. Jockers, I. Brunner, J. Bismut, J. Knapp, J. Polchinski, J. Walcher, J. Walcher, Jie Yang, K. Nagao, M. Kontsevich, M. Mariño, M. Mariño, M. Mariño, M. Mariño, P.L.H. Cook, R. Dijkgraaf, R. Pandharipande, S. Natanzon, S. Natanzon, S. Natanzon, S. Sinha, S.H. Katz, T. Graber, V. Bouchard, V. Bouchard, V. Mathai   +41 more
core   +2 more sources

Cervical Small Cell Neuroendocrine Carcinoma Initially Detected on Cytology: Diagnostic Pitfalls and Clues

Cytopathology, EarlyView.
This case describes the initial detection of cervical small cell neuroendocrine carcinoma on conventional endometrial and cervicovaginal liquid‐based cytology. Given its rarity and high aggressiveness, early recognition and rapid, intensive treatment are crucial for improving patient outcomes.
Yesul Jeong
wiley   +1 more source

Tadpole body size and behaviour alter the social acquisition of a defensive bacterial symbiont [PDF]

Royal Society Open Science, 2019
Individual differences in host phenotypes can generate heterogeneity in the acquisition and transmission of microbes. Although this has become a prominent factor of disease epidemiology, host phenotypic variation might similarly underlie the transmission
Carl N. Keiser, Trina Wantman, Eria A. Rebollar, Reid N. Harris   +3 more
doaj   +1 more source

Asteroids in the Inner Solar System I - Existence

, 2000
Ensembles of in-plane and inclined orbits in the vicinity of the Lagrange points of the terrestrial planets are integrated for up to 100 million years.
Evans, Evans, Gladman, Holman, Holman, Innanen, Kinoshita, Laskar, Mikkola, Mikkola, Mikkola, Mikkola, Mikkola, N. W. Evans, Namouni, Namouni, Namouni, Quinn, S. A. Tabachnik, Saha, Smith, Tabachnik, Whiteley, Williams, Winiarski, Wisdom, Wisdom, Yoder, Yoder, Zhang, Zhang, Zhang, Érdi   +32 more
core   +2 more sources

The self-energy of improved staggered quarks [PDF]

, 2003
We calculate the fermion self-energy at O(alpha_s) for the Symanzik improved staggered fermion action used in recent lattice simulations by the MILC collaboration. We demonstrate that the algebraic approach to lattice perturbation theory, suggested by us
Becher, Thomas, Melnikov, Kirill
core   +2 more sources

The Effect of Heterospecific Song and Anthropogenic Sound on the Development of Life History Traits in a Field Cricket

Ethology, EarlyView.
We raised fall field crickets in acoustic environments of silence, their own song, traffic noise, or the song of the recently introduced Japanese burrowing cricket and measured development, size, and adult survival. We found that crickets reared with burrowing cricket song developed more quickly than crickets reared in silence.
Troy A. Bowers, Susan N. Gershman
wiley   +1 more source

Longevity and survival curves of Rhinella icterica (Anura, Bufonidae) under laboratory conditions

Brazilian Journal of Biology
Life tables and survival curves of tadpoles from Rhinella icterica species were studied in the laboratory, under abiotic conditions controlled by a purification filter, a timer and a chiller. The survival curve for larval stage confirms a great mortality
MSCS. Lima, J. Pederassi, CAS. Souza
doaj   +1 more source

Evaluation of anuran diversity and success in tertiary wastewater treatment wetlands

Journal of Freshwater Ecology, 2018
Constructed wetlands (CWs) are a multifunctional environmental technology capable of supporting plant and wildlife communities and removing excess nutrients and other pollutants.
Emma F. Zeitler, Kristen K. Cecala, Deborah A. McGrath   +2 more
doaj   +1 more source