Results 21 to 30 of about 64,963 (242)

A multi-scale daily SPEI dataset for drought characterization at observation stations over mainland China from 1961 to 2018 [PDF]

Earth System Science Data, 2021
The monthly standardized precipitation evapotranspiration index (SPEI) can be used to monitor and assess drought characteristics with 1-month or longer drought duration. Based on data from 1961 to 2018 at 427 meteorological stations across mainland China,
Q. Wang, Q. Wang, J. Zeng, J. Qi, X. Zhang, X. Zhang, Y. Zeng, W. Shui, Z. Xu, R. Zhang, X. Wu, J. Cong   +11 more
doaj   +1 more source

SMC is recruited to oriC by ParB and promotes chromosome segregation in Streptococcus pneumoniae [PDF]

, 2011
Segregation of replicated chromosomes is an essential process in all organisms. How bacteria, such as the oval-shaped human pathogen Streptococcus pneumoniae, efficiently segregate their chromosomes is poorly understood.
Avery, Baerends, Bloom, Bouthier de la Tour, Britton, Dagkessamanskaia, Danilova, Eberhardt, Errington, Fadda, Ferrandiz, Fogel, Gasc, Gerdes, Glaser, Graumann, Gruber, Guthlein, Halfmann, Hendriksen, Hoskins, Hudson, Hui, Ireton, Jun, Jun, Katayama, Kloosterman, Kornberg, Lanie, Leenhouts, Lin, Lindow, Livny, Lynch, Martin, Mascarenhas, Mitchell, Moriya, Mott, Murray, Nasmyth, O'Brien, Onn, Ptacin, Reyes-Lamothe, Ringgaard, Salje, Sambrook, Schofield, Scholefield, Sebert, Soppa, Sullivan, Terzaghi, Thanbichler, Toro, van der Poll, Weiser, Yu, Zakrzewska-Czerwinska, Zhao   +61 more
core   +5 more sources

Using a Logic Programming Framework to Control Database Query Dialogues in Natural Language [PDF]

, 2006
We present a natural language question/answering system to interface the University of Évora databases that uses clarification dialogs in order to clarify user questions.
D.H.D. Warren, E. Bick, H. Kamp, I. Androutsopoulos, I. Androutsopoulos, L. Quintano, S. Abreu, S.P. Abreu, S.P. Abreu, S.P. Abreu   +9 more
core   +1 more source

Long-term drought variability and trends in Barcelona (1787-2014)

Cuadernos de Investigación Geográfica, 2016
Long-term drought variability and trends were assessed in Barcelona at annual and seasonal scale for the period 1787-2014 and sub-periods 1851-2014, 1901-2014 and 1951-2014 to identify changes in drought patterns across time.
J. R. Coll, E. Aguilar, M. Prohom, J. Sigro   +3 more
doaj   +1 more source

Hopanoids Play a Role in Membrane Integrity and pH Homeostasis in Rhodopseudomonas palustris TIE-1 [PDF]

, 2009
Sedimentary hopanes are pentacyclic triterpenoids that serve as biomarker proxies for bacteria and certain bacterial metabolisms, such as oxygenic photosynthesis and aerobic methanotrophy.
Hunter, Ryan C., Newman, Dianne K., Sessions, Alex L., Summons, Roger E., Welander, Paula V., Zhang, Lichun   +5 more
core   +3 more sources

Hasniar SPEI

, 2021
Tugas pertemuan kedua Sejarah pemikiran ekonomi islam artikel ...
openaire   +1 more source

Evaluation of reanalysis data in the study of meteorological and hydrological droughts in the Magdalena-Cauca river basin, Colombia

Dyna, 2019
Droughts are a natural phenomenon of water deficit and represent one of the most dangerous natural hazards to human activities; accordingly, its understanding and monitoring are vital.
Carolina Vega Viviescas, Erasmo Alfredo Rodríguez Sandoval   +1 more
doaj   +1 more source

Monitoring Spatio-temporal pattern of drought using multi-satellite data during the period 2000 - 2018 (Case study: Iran) [PDF]

مخاطرات محیط طبیعی, 2021
Due to declining rainfall in the last two decades, drought has become a major problem in the world, especially in arid and semi-arid regions such as Iran, so monitoring and managing it is important.
Zahra Arabi, Shahin Mohammadi
doaj   +1 more source

Aplicação localizada de herbicidas para controle de alecrim-do-campo (vernonia nudiflora) em pastagem natural

Semiárida, 2020
Para avaliar o controle de alecrim-do-campo (Vernonia nudiflora) com aplicação de herbicidas de contato, foi conduzido durante 353 dias, um experimento com delineamento de parcelas subdivididas, dispostas em blocos ao acaso, com três repetições em um ...
J. G. Farias, E. L. Moojen, F. Jochims, D. B. Galvani, F. Barzotto, S. O. Machado   +5 more
doaj  

Copula-based drought severity-area-frequency curve and its uncertainty, a case study of Heihe River basin, China

Hydrology Research, 2020
Copulas are appropriate tools in drought frequency analysis. However, uncertainties originating from copulas in such frequency analysis have not received significant consideration. This study aims to develop a drought severity-areal extent-frequency (SAF)
Zhanling Li, Quanxi Shao, Qingyun Tian, Louie Zhang   +3 more
doaj   +1 more source