Results 71 to 80 of about 776,151 (280)

Observation of the Crab Nebula with the HAWC Gamma-Ray Observatory [PDF]

, 2017
The Crab Nebula is the brightest TeV gamma-ray source in the sky and has been used for the past 25 years as a reference source in TeV astronomy, for calibration and verification of new TeV instruments. The High Altitude Water Cherenkov Observatory (HAWC),
A. Abeysekara, A. Albert, R. Alfaro, C. Alvarez, J. Álvarez, R. Arceo, J. C. Arteaga-Vel'azquez, H. Solares, A. Barber, N. Bautista-Elivar, A. Becerril, E. Belmont-Moreno, S. Benzvi, D. Berley, J. Braun, C. Brisbois, K. Caballero-Mora, T. Capistr'an, A. Carramiñana, S. Casanova, M. Castillo, U. Cotti, J. Cotzomi, S. C. D. Le'on, E. D. L. Fuente, C. D. Le'on, T. DeYoung, B. Dingus, M. DuVernois, J. C. Díaz-Vélez, R. Ellsworth, D. Fiorino, N. Fraija, J. A. Garc'ia-Gonz'alez, M. Gerhardt, A. G. Muñoz, M. Gonz'alez, J. Goodman, Z. Hampel-Arias, J. P. Harding, S. Hernández, A. Hernández-Almada, J. Hinton, C. Hui, P. Hüntemeyer, A. Iriarte, A. Jardin-Blicq, V. Joshi, S. Kaufmann, D. Kieda, A. Lara, R. Lauer, W. Lee, D. Lennarz, H. L. Vargas, J. Linnemann, A. Longinotti, G. Raya, R. Luna-Garc'ia, R. L'opez-Coto, K. Malone, S. Marinelli, O. Martinez, I. Martinez-Castellanos, J. Mart'inez-Castro, H. Mart'inez-Huerta, J. Matthews, P. Miranda-Romagnoli, E. Moreno, M. Mostaf'a, L. Nellen, M. Newbold, M. Nisa, R. Noriega-Papaqui, R. Pelayo, J. Pretz, E. G. P'erez-P'erez, Z. Ren, C. Rho, C. Rivière, D. Rosa-González, M. Rosenberg, E. Ruiz-Velasco, H. Salazar, F. Greus, A. Sandoval, M. Schneider, H. Schoorlemmer, G. Sinnis, A. Smith, R. Springer, P. Surajbali, I. Taboada, O. Tibolla, K. Tollefson, I. Torres, T. Ukwatta, L. Villaseñor, T. Weisgarber, S. Westerhoff, I. Wisher, J. Wood, T. Yapici, G. Yodh, P. Younk, A. Zepeda, H. Zhou   +106 more
semanticscholar   +1 more source

Atmospheric composition in the European Arctic and 30 years of the Zeppelin Observatory, Ny-Ålesund

, 2021
. The Zeppelin Observatory (78.90° N, 11.88° E) is located on the Zeppelin Mountain at 472 m above sea level on Spitsbergen, the largest island of the Svalbard archipelago. Established in 1989, the observatory is part of the “Ny-Ålesund Research Station”
S. Platt, Ø. Hov, T. Berg, K. Breivik, S. Eckhardt, K. Eleftheriadis, N. Evangeliou, M. Fiebig, R. Fisher, G. Hansen, H. Hansson, J. Heintzenberg, O. Hermansen, Dominic Heslin-Rees, K. Holmén, S. Hudson, R. Kallenborn, R. Krejci, Terje Krognes, S. Larssen, D. Lowry, C. Lund Myhre, C. Lunder, E. Nisbet, Pernilla B. Nizetto, Ki‐Tae Park, C. Pedersen, Katrine Aspmo Pfaffhuber, T. Röckmann, N. Schmidbauer, S. Solberg, A. Stohl, J. Ström, T. Svendby, P. Tunved, K. Tørnkvist, C. van der Veen, S. Vratolis, Y. Yoon, K. Yttri, P. Zieger, W. Aas, K. Tørseth   +42 more
semanticscholar   +1 more source

Student Understanding of Rotational and Rolling Motion Concepts [PDF]

, 2007
Provides pedagogical insight concerning learners' pre-conceptions and misconceptions about torque and rolling motion The resource being annotated is: http://www.dlese.org/dds/catalog_DLESE-000-000-006-235 ...
Lamont-Doherty Earth Observatory, Columbia University
core  

Future Boundary Conditions in De Sitter Space [PDF]

, 2011
We consider asymptotically future de Sitter spacetimes endowed with an eternal observatory. In the conventional descriptions, the conformal metric at the future boundary I^+ is deformed by the flux of gravitational radiation.
A Castro, A Folacci, A Strominger, A Strominger, AA Starobinsky, Andrew Strominger, B Allen, D Anninos, D Anninos, D Anninos, D Anninos, Dionysios Anninos, E Schrödinger, F Larsen, G Gibbons, Gim Seng Ng, GT Horowitz, H Bondi, H Kodama, H Kodama, JM Maldacena, L Susskind, LA Tamburino, M Alishahiha, M Spradlin, MK Parikh, N Goheer, P McFadden, R Bousso, R Bousso, R Sachs, T Banks   +31 more
core   +2 more sources

The Heihe Integrated Observatory Network: A Basin‐Scale Land Surface Processes Observatory in China

, 2018
Heihe was the first basin‐scale integrated observatory network established in China. An intensive flux observation matrix experiment was conducted. New techniques, e.g., wireless sensor network, flux matrix, and airborne remote sensing, are used.
Shaomin Liu, Xin Li, Ziwei Xu, Tao Che, Q. Xiao, M. Ma, Qinhuo Liu, R. Jin, Jianwen Guo, Liangxu Wang, Weizhen Wang, Y. Qi, Hongyi Li, Tongren Xu, Y. Ran, Xiaoli Hu, Shengjin Shi, Zhongli Zhu, Junlei Tan, Yang Zhang, Zhiguo Ren   +20 more
semanticscholar   +1 more source

The 2HWC HAWC Observatory Gamma-Ray Catalog [PDF]

, 2017
We present the first catalog of TeV gamma-ray sources realized with data from the newly completed High Altitude Water Cherenkov Observatory (HAWC). It is the most sensitive wide field-of-view TeV telescope currently in operation, with a one-year survey ...
A. Abeysekara, A. Albert, R. Alfaro, C. Alvarez, J. Álvarez, R. Arceo, J. C. Arteaga-Vel'azquez, H. Solares, A. Barber, B. Baughman, N. Bautista-Elivar, J. González, A. Becerril, E. Belmont-Moreno, S. Benzvi, D. Berley, A. Bernal, J. Braun, C. Brisbois, K. Caballero-Mora, T. Capistr'an, A. Carramiñana, S. Casanova, S. Casanova, M. Castillo, U. Cotti, J. Cotzomi, S. C. D. Le'on, E. D. L. Fuente, C. D. Le'on, R. Hernández, B. Dingus, M. DuVernois, J. C. Díaz-Vélez, R. Ellsworth, K. Engel, D. Fiorino, N. Fraija, J. A. Garc'ia-Gonz'alez, F. Garfias, M. Gerhardt, A. G. Muñoz, M. Gonz'alez, J. Goodman, Z. Hampel-Arias, J. P. Harding, S. Hernández, A. Hernández-Almada, J. Hinton, C. Hui, P. Hüntemeyer, A. Iriarte, A. Jardin-Blicq, V. Joshi, S. Kaufmann, D. Kieda, A. Lara, R. Lauer, W. Lee, D. Lennarz, H. L. Vargas, J. Linnemann, A. Longinotti, G. Raya, R. Luna-Garc'ia, R. L'opez-Coto, K. Malone, S. Marinelli, O. Martinez, I. Martinez-Castellanos, J. Mart'inez-Castro, H. Mart'inez-Huerta, J. Matthews, P. Miranda-Romagnoli, E. Moreno, M. Mostafá, L. Nellen, M. Newbold, M. Nisa, R. Noriega-Papaqui, R. Pelayo, J. Pretz, E. G. P'erez-P'erez, Z. Ren, C. Rho, C. Rivière, D. Rosa-González, M. Rosenberg, E. Ruiz-Velasco, H. Salazar, F. Greus, A. Sandoval, M. Schneider, H. Schoorlemmer, G. Sinnis, A. Smith, R. Springer, P. Surajbali, I. Taboada, O. Tibolla, K. Tollefson, I. Torres, T. Ukwatta, G. Vianello, L. Villaseñor, T. Weisgarber, S. Westerhoff, I. Wisher, J. Wood, T. Yapici, P. Younk, A. Zepeda, H. Zhou   +112 more
semanticscholar   +1 more source

GLOSOB: The Global Soil Biodiversity Observatory

Soil Organisms
As part of the post-2020 Plan of Action of the International Initiative for the Conservation and Sustainable Use of Soil Biodiversity (CBD 2020), adopted at the 2022 Conference of the Parties to the United Nations Convention on Biological Diversity (CBD
Jacob Parnell, George Brown, Peter deRuiter, Carlos Guerra, Luca Montanarella, Zoë Lindo, Gian Luca Bagnara, Jeff Battigelli, Rosalina González, Rosa M. Poch, Diana H. Wall †, Giulio Malorgio, Ronald Vargas, Rosa Cuevas-Corona, Natalia Rodriguez Eugenio   +14 more
doaj   +1 more source

Misconceptions About Caves and Karst: Common Problems and Educational Solutions [PDF]

, 2007
Provides pedagogical insight concerning learners' pre-conceptions and misconceptions about groundwater, caves, karst The resource being annotated is: http://www.dlese.org/dds/catalog_DLESE-000-000-010-102 ...
Lamont-Doherty Earth Observatory, Columbia University
core  

« Crise du lait » et trajectoires de résilience des petits producteurs à Madagascar

Revue Internationale des Études du Développement, 2018
In Madagascar, the dairy production intended for marketing has developed over the past few decades within small diversified family farming on high plateaus.
Isabelle Droy, Patrick Rasolofo
doaj  

A comparison between health research output and burden of disease in Arab countries: evidence from Palestine

Health Research Policy and Systems, 2018
Background Research conducted on conditions responsible for the greatest disease burden should be given the highest priority, particularly in resource-limited settings.
Loai Albarqouni, Khamis Elessi, Niveen M. E. Abu-Rmeileh   +2 more
doaj   +1 more source