Results 21 to 30 of about 1,054,901 (276)

The pan-Arctic catchment database (ARCADE) [PDF]

open access: yesEarth System Science Data, 2023
The Arctic is rapidly changing. Outside the Arctic, large-sample catchment databases have transformed catchment science from focusing on local case studies to more systematic studies of watershed functioning.
N. J. Speetjens   +7 more
doaj   +1 more source

Biomass burning pollution in the South Atlantic upper troposphere: GLORIA trace gas observations and evaluation of the CAMS model [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
In this study, we present simultaneous airborne measurements of peroxyacetyl nitrate (PAN), ethane (C2H6), formic acid (HCOOH), methanol (CH3OH), and ethylene (C2H4) above the South Atlantic in September and October 2019.
S. Johansson   +8 more
doaj   +1 more source

On the use of an explicit chemical mechanism to dissect peroxy acetyl nitrate formation. [PDF]

open access: yes, 2014
Peroxy acetyl nitrate (PAN) is a key component of photochemical smog and plays an important role in atmospheric chemistry. Though it has been known that PAN is produced via reactions of nitrogen oxides (NOx) with some volatile organic compounds (VOCs ...
Blake, Donald R   +16 more
core   +1 more source

Effect of Superabsorbent Application under Different Irrigation Regimes on Photosynthetic Pigments in Cuminum cyminum and its Relation with Seed and Essential Oil Yield

open access: yesMajallah-i ̒Ulum-i Bāghbānī, 2016
Introduction: Cumin, sometimes spelled cummin (Cuminum cyminum L.; Apiaceae), also known as Zeera is native from the East Mediterranean to India. Its seeds are used in the cuisines of many different cultures, and it is also used as a medicinal plant ...
A. Pirzad, R. Darvishzadeh, A. Hassani
doaj   +1 more source

Irrigation and nitrogen managements for producing bean plants under no-tillage system

open access: yesPesquisa Agropecuária Tropical, 2012
Common bean has been cultivated by producers who have access to a wide range of technologies that allow a higher profitability in the winter. This study aimed at evaluating bean yield and its components, under no-tillage system, according to different ...
Arthur Pacheco   +3 more
doaj   +1 more source

Comments on the 'China model' [PDF]

open access: yes, 2011
This paper reviews the articles by Pan and by Zhu on the China Model. The review of Pan is critical, that of Zhu sympathetic. Pan is criticised for taking an unquestioning attitude towards state supporting ideologies and failing to adequately account ...
Catholic Bishops   +4 more
core   +1 more source

Evaporation trends in Spain: a comparison of Class A pan and Piché atmometer measurements [PDF]

open access: yesClimate Research, 2014
This work has been supported by the research projects CGL2010-17172/BOS, CGL2011-27574- CO2- 02, CGL2011-27536, CGL2010-18456 and Consolider- Ingenio Montes CSD2008-00040 financed by the Spanish Commission of Science and Technology and FEDER; ‘Demonstration and validation of innovative methodology for regional climate change adaptation in the ...
Sánchez Lorenzo, Arturo   +5 more
openaire   +4 more sources

A pan-cancer study of class-3 semaphorins as therapeutic targets in cancer [PDF]

open access: yesBMC Medical Genomics, 2020
Abstract Background Initially characterized as axon guidance factors, semaphorins also have been implicated to have critical roles in multiple physiological and developmental functions, including the regulation of immune responses, angiogenesis, organ formation, and the etiology of multiple forms of cancer.
Xiaoli Zhang   +4 more
openaire   +3 more sources

Estimation and Forecasting of Evaporation Losses for Lake Mosul Dam

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2023
Evaporation from water bodies is important and considered a major problem in dry and semi-dry regions, in this research the evaporation has been analyzed from two approaches: engineeringly and statistically.
Elham abdulkreem hussain   +2 more
doaj   +1 more source

The p110 delta structure: mechanisms for selectivity and potency of new PI(3)K inhibitors. [PDF]

open access: yes, 2010
Deregulation of the phosphoinositide-3-OH kinase (PI(3)K) pathway has been implicated in numerous pathologies including cancer, diabetes, thrombosis, rheumatoid arthritis and asthma.
Alex Berndt   +16 more
core   +2 more sources

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