Results 21 to 30 of about 66,644 (262)

Role of multifocal electroretinogram in the prediction of visual prognosis in patients with occult macular dystrophy

open access: yesDelta Journal of Ophthalmology, 2020
Background Occult macular dystrophy (OMD) is a rare hereditary macular dystrophy characterized by severe bilateral progressive loss of central vision with normal fundus appearance and normal fundus fluorescein angiography.
Marwa Abdelshafy, Ahmed Abdelshafy
doaj   +1 more source

Vitreae gemmae, volgi anuli. Bagues et intailles méditerranéennes en Bohême à l’époque de La Tène [PDF]

open access: yesStudia Hercynia, 2016
The paper presents a series of finger rings with/or gems of Mediterranean origin unearthed in Bohemia in Late Iron Age contexts. The rings and gems are studied from formal and stylistic point of view; results of technological analyses are also taken ...
Jan Kysela
doaj  

Lords and ladies of the rings

open access: yesArcheologické Rozhledy, 2016
Saddle-shaped finger-rings are among the most widespread types of Late Iron Age jewellery. Such ornaments are encountered throughout the entire period in question, from south-western Germany, western Switzerland and northern Italy to Transylvania and ...
Aurel Rustoiu
doaj   +1 more source

Age of Gossip in Ring Networks in the Presence of Jamming Attacks

open access: yes2022 56th Asilomar Conference on Signals, Systems, and Computers, 2022
We consider a system with a source which maintains the most current version of a file, and a ring network of $n$ user nodes that wish to acquire the latest version of the file. The source gets updated with newer file versions as a point process, and forwards them to the user nodes, which further forward them to their neighbors using a memoryless gossip
Priyanka Kaswan, Sennur Ulukus
openaire   +2 more sources

Radiocarbon Dating of an Olive Tree Cross-Section: New Insights on Growth Patterns and Implications for Age Estimation of Olive Trees

open access: yesFrontiers in Plant Science, 2017
The age of living massive olive trees is often assumed to be between hundreds and even thousands of years. These estimations are usually based on the girth of the trunk and an extrapolation based on a theoretical annual growth rate.
Yael Ehrlich   +3 more
doaj   +1 more source

Clinical Analysis of Congenital Deficient Tracheal Cartilage Rings: Six Case Reports and a Literature Review

open access: yesFrontiers in Pediatrics, 2020
Congenital deficiency of tracheal rings is a rare tracheal malformation that can cause central airway obstruction. Herein we reported the clinical data of six patients with symptomatic congenital deficient tracheal rings.
Jing Ma   +7 more
doaj   +1 more source

Inscribed finger rings from late antique and Byzantine Asia Minor

open access: yesCercetări Arheologice, 2021
In this short paper we present thirteen metal rings from the museums of Izmir (nos. 3-4 and 9-10), Afyonkarahisar (no. 5), Bergama (nos. 6 and 8), Ödemiş (no. 7), Trabzon (no. 11), and Balıkesir (no.
Lafli, Ergün, Buora, Maurizio
doaj   +1 more source

Marking fin spine of juvenile sturgeon (acipenseriformes: acipenseridae) using oxytetracycline and the comparing of growth performance

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2021
This study aimed to describe and validate the formation of the rings in the spine of the pectoral fin and to determine the coherence of the OTC mark with the rings of three species of Caspian Sea sturgeon, the Persian sturgeon (Acipenser persicus), the ...
S. Bakhshalizadeh   +3 more
doaj   +1 more source

Saturn’s rings age, I: Reconsideration of the exposure age

open access: yesIcarus
At the end of the Cassini mission, Saturn's rings have been claimed to be spectacularly young compared to the age of the Solar System: their unusual ice-rich composition corresponds to initially pure ice rings polluted by interplanetary dust particles for 100 to 400 Myr.
Gregorio Ricerchi, Aurélien Crida
openaire   +2 more sources

Wood density within Norway spruce stems

open access: yesSilva Fennica, 2008
We studied the variation in average wood density of annual rings, earlywood density, and latewood density in addition to ring width and latewood percentage within Norway spruce (Picea abies (L.) Karst.) stems from the pith to the bark, and from the ...
Jyske, Tuula   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy