Results 51 to 60 of about 4,404,153 (153)

Characterization of secondary radioclimatic variables for microwave and millimeter wave link design in Nigeria [PDF]

open access: yes, 2019
A reliable radio propagation data is required in other to propose a well-founded model for radioclimatic study in any area. The two major types of radio propagation data needed are the primary and secondary propagation data.
Akinyemi, Pelumi ; Department of Physics, Federal University of Technology, Akure, Nigeria   +2 more
core   +2 more sources

The effect of terrain roughness in the microwave line-of-sight multipath fading estimation based on Rec. ITU-R P.530-15 [PDF]

open access: yes, 2014
Date of Conference: 16-23 Aug. 2014Conference name: XXXIth URSI General Assembly and Scientific Symposium, URSI GASS 2014Multipath fading is an important constraint on the prediction of path loss for terrestrial line-of-sight microwave links.
Altıntaş, Ayhan   +7 more
core   +1 more source

Peer review of the pesticide risk assessment of the active substance proquinazid

open access: yesEFSA Journal, Volume 24, Issue 5, May 2026.
Abstract The conclusions of the European Food Safety Authority (EFSA) following the peer review of the initial risk assessments carried out by the competent authorities of the rapporteur Member State Sweden and co‐rapporteur Member State Lithuania for the pesticide active substance proquinazid are reported.
European Food Safety Authority (EFSA)   +47 more
wiley   +1 more source

Cenozoic geoclimatic changes drove the evolutionary dynamics of floristic endemism on the Qinghai–Tibet Plateau

open access: yes
International audienceThe Qinghai–Tibet Plateau (QTP) harbors extraordinarily high levels of biodiversity and endemism. The region is warming at a rate twice the global average, yet the evolutionary dynamics of its unique biota are poorly understood ...
Cao, Guan-Long   +10 more
core   +1 more source

Assessment of Anomalous Propagation Conditions in Ondo City, South Western Nigeria for Microwave Applications [PDF]

open access: yes, 2019
Recent results of the in-situ measurement of radio climatological parameters of pressure, temperature and relative humidity carried out to investigate the trends in propagation conditions over altitude of 100-m in Ondo city Nigeria are presented.
Ojo, O. L., Adenodi, R. A.
core   +1 more source

Geographical Variation in Skull Morphology of a Wild Rodent (Orientallactaga sibirica) Across Environmental Gradients

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
The greatest morphological differences are observed between the northeastern regions of China and the Qinghai‐Tibet regions. Elevation and temperature are the primary climatic factors causing morphological variation. Compared to the current period, the future suitable habitat area for Five‐toed jerboa is expected to decrease and shift toward higher ...
Cheng Yang   +8 more
wiley   +1 more source

Patterns of understorey bird diversity across Amazonian forests: survey effort and range maps predict local species richness

open access: yesEcography, Volume 2026, Issue 3, March 2026.
Species diversity typically increases from higher to lower latitudes, but the regional‐scale variation along this geographic gradient remains unclear. It has been suggested that species diversity throughout Amazonia generally increases westward toward the Andes, but this pattern and its environmental determinants require further investigation for most ...
Pilar L. Maia‐ Braga   +14 more
wiley   +1 more source

Combination of Stable Isotope Analysis and Chemometrics to Discriminate Geoclimatically and Temporally the Virgin Olive Oils from Three Mediterranean Countries [PDF]

open access: yes, 2020
The knowledge of the isotopic composition of virgin olive oil (VOO) allows the evaluation of authenticity and geographical origin, being an important tool against fraud.
Garcia, R.   +14 more
core   +1 more source

Updated peer review of the pesticide risk assessment of the active substance clodinafop (variant evaluated clodinafop‐propargyl)

open access: yesEFSA Journal, Volume 24, Issue 3, March 2026.
Abstract The conclusions of the European Food Safety Authority (EFSA) following the peer review of the initial risk assessments carried out by the competent authorities of the rapporteur Member State, Greece, and co‐rapporteur Member State, Germany, for the pesticide active substance clodinafop‐propargyl are reported. The context of the peer review was
European Food Safety Authority (EFSA)   +47 more
wiley   +1 more source

Comparing exploratory and confirmatory factor analysis: A study on the five-factor model of personality [PDF]

open access: yes, 1990
Borkenau P, Ostendorf F. Comparing exploratory and confirmatory factor analysis: A study on the five-factor model of personality. Personality and Individual Differences.
Borkenau, Peter   +2 more
core   +1 more source

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