Results 21 to 30 of about 385,698 (291)

Content analysis and ranking of irregularities in public sector construction procurement in South Africa [PDF]

open access: yesInternational Journal of Construction Supply Chain Management, 2022
In the South African government sector, public procurement is a strategic mechanism through which the government could be able to achieve the mandatory socioeconomic objectives.
Themba Mfanafuthi Lukhele   +2 more
doaj   +1 more source

Plasma Dynamics Associated With Equatorial Ionospheric Irregularities

open access: yesGeophysical Research Letters, 2018
The Communication/Navigation Outage Forecasting System satellite was operational from 2008, a period of deep solar minimum, to 2015, a period of moderate solar conditions.
Jonathon Matthew Smith, R. A. Heelis
doaj   +1 more source

Role of the external drivers in the occurrence of low-latitude ionospheric scintillation revealed by multi-scale analysis

open access: yesJournal of Space Weather and Space Climate, 2019
We analyze the amplitude scintillation on L-band signals over San Miguel de Tucumán (Argentina), focusing on the multi-scale variability and speculating on the possible relationship between forcing factors from the geospace and the ionospheric response ...
Spogli Luca   +7 more
doaj   +1 more source

Recommendations for Overcoming Challenges of Whistleblowing in Public Procurement Procedures

open access: yesLaw: Journal of the University of Latvia, 2022
Public procurement is an area very vulnerable to corruption, which was especially evident during the Covid-19 virus pandemic. Pandemic called for prompt state response, including urgent public procurement procedures that resulted in numerous ...
Jelena Kostić, Marina Matić Bošković
doaj   +1 more source

Prevalence of menstrual problems and their association with psychological stress among students of a medical college in Northern India [PDF]

open access: yesNew Indian Journal of OBGYN
Background: Regular menstruation symbolizes a normal reproductive health of woman; however, all women experience some form of menstrual problem in their lifetime. Medical undergraduates are mostly in the age group of late adolescence and early twenties.
Shaugfta Aara   +3 more
doaj   +1 more source

On the Properties of and Ionospheric Conditions Associated With a Mid‐Latitude Scintillation Event Observed Over Southern United States

open access: yesSpace Weather, 2021
While low and high‐latitude ionospheric scintillation have been extensively reported, significantly less information is available about the properties of and conditions leading to mid‐latitude scintillations.
F. S. Rodrigues   +4 more
doaj   +1 more source

Modeling TEC Irregularities in the Arctic Ionosphere Using Empirical Orthogonal Function Method

open access: yesSpace Weather, 2023
We develop a climatological model for the Arctic ionosphere based on more than one solar cycle of data (2010–2021) of the rate of change of the total electron content index (ROTI) maps from the International GNSS Service (IGS).
Yaqi Jin   +7 more
doaj   +1 more source

Ionosonde Observations of Spread F and Spread Es at Low and Middle Latitudes during the Recovery Phase of the 7–9 September 2017 Geomagnetic Storm

open access: yesRemote Sensing, 2021
This study presents observations of nighttime spread F/ionospheric irregularities and spread Es at low and middle latitudes in the South East Asia longitude of China sectors during the recovery phase of the 7–9 September 2017 geomagnetic storm.
Lehui Wei   +7 more
doaj   +1 more source

EUROPEAN FUNDS AUDIT IN ROMANIA [PDF]

open access: yesAnnals of the University of Petrosani: Economics, 2015
To become a a net beneficiary of EU funds, Romania must ensure an absorption rate as higher as it can. The appreciation of the these funds' management and formulating opinions in support of improving the absorption of European funds in the future can be
ANCA SIMINA POPESCU
doaj  

The Morphology of Equatorial Plasma Bubbles – a review [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2015
Plasma bubbles that occur in the equatorial F-region make up one of the most distinguishing phenomena in the ionosphere. Bubbles represent plasma depletions with respect to the background ionosphere, and are the major source of electron density ...
Hyosub Kil
doaj   +1 more source

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