Results 51 to 60 of about 14,587 (159)

Investigating Particle Size-Flux Relationships and the Biological Pump Across a Range of Plankton Ecosystem States From Coastal to Oligotrophic

open access: yesFrontiers in Marine Science, 2019
Sinking particles transport organic carbon produced in the surface ocean to the ocean interior, leading to net storage of atmospheric CO2 in the deep ocean.
Christian K. Fender   +7 more
doaj   +1 more source

Multivariate poisson-lognormal model for modeling related factors in crash frequency by severity

open access: yesInternational Journal of Environmental Health Engineering, 2013
Aims: Traditionally, roadway safety analyses have used univariate distributions to model crash data for each level of severity separately. This paper uses the multivariate Poisson lognormal (MVPLN) models to estimate the expected crash frequency by two ...
Mehdi Tazhibi   +3 more
doaj   +1 more source

HIV Research Training Partnership of the University of Zambia and Vanderbilt University: Features and Early Outcomes

open access: yesAnnals of Global Health, 2019
Background: Despite the burden of HIV being highest in sub-Saharan Africa (SSA), research expertise and capacity to address scientific questions regarding complications of HIV and ART, especially chronic non-communicable conditions, is limited in the ...
Wilbroad Mutale   +8 more
doaj   +1 more source

Management of Uterovaginal Prolapse in Neonate : A Rare Case Report

open access: yesJKS (Jurnal Kedokteran Syiah Kuala)
Introduction: Congenital uterovaginal prolapse (UVP) at birth is an extremely rare condition, often associated with congenital muscular, neurological, and spinal disorders.
Ima Indirayani   +4 more
doaj   +1 more source

Joint control of urban expansion and climate change on urban-rural vegetation phenology gradient in 31 cities of China

open access: yesFrontiers in Ecology and Evolution
The spatiotemporal heterogeneity of urban vegetation phenology (UVP) has intensified due to coupled urban expansion and climate change, yet the systematic understanding of UVP responses along urban-rural gradients across diverse climatic contexts and ...
Hao Yang   +6 more
doaj   +1 more source

Study on the Optimal Number of Transducers for Pipe Flow Rate Measurement Downstream of a Single Elbow Using the Ultrasonic Velocity Profile Method

open access: yesScience and Technology of Nuclear Installations, 2012
This paper presents a new estimation method to determine the optimal number of transducers using an Ultrasonic Velocity Profile (UVP) for accurate flow rate measurement downstream of a single elbow.
Sanehiro Wada   +4 more
doaj   +1 more source

Zur Fortentwicklung des Raumordnungsverfahrens auch im Hinblick auf die Bestrebungen zur Beschleunigung des Planungsablaufs

open access: yesRaumforschung und Raumordnung, 1992
Die bundesweite Einführung des Raumordnungsverfahrens (ROV) mit erstinstanzlicher – überörtlicher – UVP durch die Novelle zum Raumordnungsgesetz (ROG) hat die Koordinierungs- und Abstimmungsaufgabe der Raumordnung wesentlich erweitert.
Günter Brenken
doaj   +2 more sources

APLIKÁCIA MODELOVANIA A SIMULÁCIE VO VÝCVIKU LETECKÝCH ŠPECIALISTOV

open access: yesPerner’s Contacts, 2015
Článok popisuje postup úvodného riešenia tvorby nového simulátorového systému pre lietadlá L-410 UVP s prihliadnutím na potrebné zmeny v technickotechnologickom riešení simulátorového systému.
Petr Vavroš, Rudolf Volner
doaj  

The effect of interleukin and matrix metalloproteinase on the vulnerability of carotid atherosclerotic plaque and cerebral infarction

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2012
Objective To investigate the relationship of IL ⁃ 17, IL ⁃ 10 and MMP ⁃ 12 with the vulnerability of carotid atherosclerotic plaque and cerebral infarction.
Yan HUANG, Guang⁃xi ZHOU, Xiu⁃yan LI
doaj  

Integrated Ultraviolet Communications and Positioning: Key Technology and Future Prospect

open access: yesGuangtongxin yanjiu
Compared with traditional wireless optical communication, Ultraviolet Communication (UVC) can establish Non Line of Sight (NLOS) links by leveraging the strong scattering effect of the atmosphere. It enjoys unique advantages such as low background noise,
WANG Siming   +3 more
doaj  

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