Results 111 to 120 of about 1,797,826 (252)

Late-Glacial radiocarbon- and palynostratigraphy on the Swiss Plateau [PDF]

, 1989
A detailed late-glacial radiocarbon stratigraphy for the Swiss Plateau has been established on the basis of over 90 accelerator 14C dates on terrestrial plant macrofossils. Two plateaux of constant.,14C age were observed, occurring at 12,700 B.P.
Ammann, Brigitta, Lotter, André F.
core   +1 more source

Stage‐Dependent β‐Synuclein Links MRI and Cognitive Decline in Alzheimer's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Synaptic degeneration drives cognitive decline in Alzheimer's disease (AD), but synaptic biomarkers are scarce. Brain‐enriched β‐synuclein emerged as a synaptic damage marker. We investigated its diagnostic, prognostic, and structural correlates across the AD continuum.
Ulaş Ay, Merve Alaylioglu, Erdi Sahin, Sanem Sultan Yoruk Oner, Gulce Iskan, Gulce Cosku Yilmaz Cakan, Gozde Kizilates‐Evin, Emre Hari, Elif Kurt, Erdinc Dursun, Basar Bilgic, Hasmet Hanagasi, Hakan Gurvit, Tamer Demiralp, Duygu Gezen‐Ak, Bedia Samanci   +15 more
wiley   +1 more source

Two Circumpolar Ground Beetle Species (Coleoptera: Carabidae) Were in Hokkaido, Japan, Late in the Last Glacial Period

Quaternary
Fossilized body parts of two cold-adapted ground beetle species, Elaphrus lapponicus and Diacheila polita, were identified from a deposit dated to the Late Glacial period in Hokkaido, Japan.
Shigehiko Shiyake
doaj   +1 more source

The deglaciation of the mountains of Mexico and Central America

Cuadernos de Investigación Geográfica, 2017
The last deglaciation is an interval of marked changes in the climate system. The records of glaciation of tropical mountains offer unique opportunities to assess the timing of changes and the sensitivity of tropical climates to global and regional ...
L. Vázquez-Selem, M.S. Lachniet
doaj   +1 more source

High-resolution mtDNA evidence for the late-glacial resettlement of Europe from an Iberian refugium [PDF]

, 2005
The advent of complete mitochondrial DNA (mtDNA) sequence data has ushered in a new phase of human evolutionary studies. Even quite limited volumes of complete mtDNA sequence data can now be used to identify the critical polymorphisms that define sub ...
Albarrán, Cristina, Al-Gazali, Lihadh, Bradley, Daniel G., Amorim, A, Garcia, O, Richards, M, Albarran, C, Al-Gazali, L, Macaulay, V, Bradley, DG, Pereira, L, Alonso, A, Goios, Ana, Gölge, Mukaddes, Amorim, António, Goios, A, Macaulay, Vincent, Richards, Martin B., Hatina, Jiři, Behar, DM, Pereira, Luísa, Golge, M, Alonso, Antonio, Garcia, Oscar, Hatina, J, Behar, Doron M.   +25 more
core   +1 more source

Alzheimer's Disease Biomarkers Measured by Capillary Blood Collection Versus Venous Plasma and Cerebrospinal Fluid

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Blood biomarkers are increasingly critical for non‐invasive Alzheimer's Disease (AD) diagnostics and research but typically require on‐site processing. Remote point‐of‐care collection methods could enhance biomarker testing in clinical and research settings.
Sara Ho, Ziling Shen, Alexandria Lewis, Megha Patel, Anny Zheng, Gianna Proscino, Thaovy Ho, Jiangxia Wang, Marilyn Albert, Abhay Moghekar   +9 more
wiley   +1 more source

Application data base paleogeographic Kola peninsula «Q-KOLA» in paleolimnological research

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
The paleogeographic database “Q-KOLA” was created to systematize, statistically analyze and visualize information about the history of the natural ecosystems of the Kola Peninsula in the Late Glacial and Holocene. The database can be used in limnological
Ivan Grekov, Dmitry Subetto
doaj   +1 more source

Impact of Hydrogen Incorporation on Electronic and Magnetic Structure of X2CrNi18‐9 Stainless Steel

Advanced Engineering Materials, EarlyView.
Hydrogen uptake in austenitic stainless steel alters both its electronic and magnetic structure. Seebeck measurements reveal hydrogen‐induced shifts in the electronic density of states, while neutron scattering uncovers nanoscale inhomogeneities that grow upon hydrogen incorporation, with the most pronounced effect observed in the PBF as‐built state ...
Torben Tappe, Louis Becker, Gaurav Kanu, Thomas F. Headen, Dirk Honecker, Gabi Schierning, Santiago Benito, Sebastian Weber, Klara Lünser, Sabrina Disch   +9 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Paleoenvironment conditions of the bottom sediment formation in the small lake depressions on the Pomorsky coast of the White Sea

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
New lithological, palinological and chronological data obtained through the study of bottom sediments from four small lake depressions on the Pomor Coast, Onega Bay, White Sea are presented.
Vasili Kolka, Olga Korsakova, Nadezhda Lavrova   +2 more
doaj   +1 more source