Results 31 to 40 of about 178,775 (272)
EXARC Journal, 2023 Funnel-shaped glasses have been found in several places, for example in Birka (graves 577, 526, 551, 850, 854, 464, 849 and 433), Sweden and in the Netherlands (De Heul, Utrecht collection PUG).
Karl Jakob Lamberth
doaj
A (not so) brief history of lunar distances: Lunar longitude determination at sea before the chronometer [PDF]
arXiv, 2020 Longitude determination at sea gained increasing commercial importance in the late Middle Ages, spawned by a commensurate increase in long-distance merchant shipping activity. Prior to the successful development of an accurate marine timepiece in the late-eighteenth century, marine navigators relied predominantly on the Moon for their time and ...
arxiv
Making tau amyloid models in vitro: a crucial and underestimated challenge
FEBS Letters, EarlyView.This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley +1 more source
Градът Карвуна? (Извори и археология)
Приноси към българската археология, 2018 This study reviews all available sources and publications about the territory known in the 11th–14th century under the name of the Karvuna land (Karvunskata zemya), Karvona chora, Karvuna archontate and the town of Karvuna.
Valentin Pletnyov
doaj
“A Mirror for Men” – Reconstructing a Medieval Polishing Bench and Putting it to the Test
EXARC Journal, 2020 In the late 5th century AD, the famous Ostrogoth Theoderic the Great received a truly regal gift from the king of the Warini: he was given highly elaborated swords, richly decorated and able to cut through armour.
Florian Messner
doaj
The Tatar Literature of the Late Middle Ages » [PDF]
Золотоордынское обозрение, 2015 The Tatar verbal art of the 15th–18th centuries developed over more than three centuries and reflected, reflects very complicated, contradictory, and tragic periods in the history of the Tatar people. This is a time of the Golden Horde disintegration and
Kh.Yu. Minnegulov
doaj
Probing the Dark Ages with Metal Absorption Lines [PDF]
Mon.Not.Roy.Astron.Soc. 336 (2002) 1021, 2002 Recent observations of high redshift quasars at z~6 have finally revealed complete Gunn-Peterson absorption. However, this at best constrains the volume-weighted and mass-weighted hydrogen neutral fractions to be greater than 10^-3 and 10^-2 respectively; stronger constraints are not possible due to the high optical depth for hydrogen Lyman transitions.
arxiv +1 more source
Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms
FEBS Letters, EarlyView.Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze +3 more
wiley +1 more source
Family Alberto (Bono) in Dubrovnik in the late Middle Ages [PDF]
Zbornik Radova Vizantološkog Instituta, 2004 In this study, on the basis of the documents preserved in the Archives of Dubrovnik, the author has described the activities of the family Alberto (Bono) in Dubrovnik, in the Serbian lands and Venice at the end of the 14th and during the first half of ...
Ćuk Ruža D.
doaj +1 more source
Insights into Age-Related Functional Brain Changes during Audiovisual Integration Tasks: A Comprehensive EEG Source-Based Analysis [PDF]
arXiv, 2023 The seamless integration of visual and auditory information is a fundamental aspect of human cognition. Although age-related functional changes in Audio-Visual Integration (AVI) have been extensively explored in the past, thorough studies across various age groups remain insufficient. Previous studies have provided valuable insights into agerelated AVI
arxiv