Results 31 to 40 of about 1,028,787 (355)

Seasonal cycle of precipitation variability in South America on intraseasonal timescales [PDF]

open access: yes, 2017
The seasonal cycle of the intraseasonal (IS) variability of precipitation in South America is described through the analysis of bandpass filtered outgoing longwave radiation (OLR) anomalies.
AM Grimm   +28 more
core   +2 more sources

Season modulates endocrinological profiles and sex behavioural characteristics in indigenous male goats under tropical humid island ecosystem

open access: yesAsian Pacific Journal of Reproduction, 2022
Objective: To measure the seasonal effect on endocrinological profiles and sex behavioural profiles during rainy and dry summer seasons in male Andaman local goat in Andaman and Nicobar Islands, India.
Perumal Ponraj   +6 more
doaj   +1 more source

Comparative measurements of carbon dioxide fluxes from two nearby towers in a central Amazonian rainforest: the Manaus LBA site [PDF]

open access: yes, 2002
Forests around Manaus have staged the oldest and the longest forest-atmosphere CO2 exchange studies made anywhere in the Amazon. Since July 1999 the exchange of CO2, water, and energy, as well as weather variables, have been measured almost continuously ...
Araújo, A.C.   +11 more
core   +2 more sources

Soil CO2 Efflux Measurements by Alkali Absorption and Infrared Gas Analyzer in the Brazilian Semiarid Region

open access: yesRevista Brasileira de Ciência do Solo, 2018
The CO2 emission from the soil surface, commonly referred to as soil CO2 efflux (ECO2) or soil respiration, is the sum of processes that include root respiration and microbial activity.
Carlas Renata Prissila Costa Ferreira   +6 more
doaj   +1 more source

Consistent Trends in Dry Spell Length in Recent Observations and Future Projections

open access: yesGeophysical Research Letters, 2022
We identify global observed changes in dry‐spell characteristics that are consistent with future projections and involve common physical drivers.
Caroline M. Wainwright   +2 more
doaj   +1 more source

Monitoring Gaseous and Particulate Air Pollutants near Major Highways in Abeokuta, Nigeria

open access: yesJournal of Applied Sciences and Environmental Management, 2016
High traffic volume and traffic congestion on Nigerian roads have led to increase in the concentration of pollutants in the air t posing health risks for human population. This study investigates air quality due to vehicular emissions in some busy roads 
OO Olayinka, OH Adedeji, FO Ajibola
doaj   +1 more source

Daily and seasonal patterns of carbon and water fluxes above a north Australian savanna [PDF]

open access: yes, 2001
Daily and seasonal fluxes of carbon dioxide and water vapor above a north Australian savanna were recorded over a complete dry season-wet season annual cycle using the eddy covariance technique.
Eamus, D, Hutley, LB, O'Grady, AP
core   +1 more source

Physical and chemical weathering rates and CO2 consumption in a tropical lateritic environment: the upper Niger basin [PDF]

open access: yes, 1998
The chemical composition of Niger river water measured bimonthly at Bamako Mali. during the period 1990–1992 provides an estimate of present weathering rates in the upper Niger basin.
Boeglin, Jean-Loup, Probst, Jean-Luc
core   +2 more sources

Seaweed Diversity and Conservation on the Warambadi Seashore of Sumba Island: Substrata and Seasonal Phenomenon [PDF]

open access: yes, 2017
The interaction between species and species diversity with their growing habitats are essential in the conservation of species. This study deals with the diversity and conservation of seaweed (marine macro-algae) with the emphasis on substrata habitats ...
Anggadiredja, J. T. (Jana)
core   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy