cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.147454
title: Tree-ring width of Quercus species from historical object sample 5911B/07A, Netherlands, Groningen

description: Species: Quercus species; No of rings: 54; first year: 1475; end year: 1529; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 4; Last ring under bark: absent
DOI: 10.1594/pangaea.147461
title: Tree-ring width of Quercus species from historical object sample 5909B/13M, Netherlands, Groningen

description: Species: Quercus species; No of rings: 86; first year: 1238; end year: 1324; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147525
title: Tree-ring width of Quercus species from historical object sample 5890B/05A, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 54; first year: 1399; end year: 1453; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 4; Last ring under bark: absent
DOI: 10.15468/dl.etcqdg
title: Occurrence Download

description: A dataset containing 10 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is South America",
 "Country is Peru",
 "GadmGid is PER.3_1",
 "TaxonKey is Gentianella"
 ]
}

 The dataset includes 10 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001704-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.147264
title: Tree-ring width of Quercus species from historical object sample 5939B/05A, Netherlands, Leiden

description: Species: Quercus species; No of rings: 105; first year: 1421; end year: 1526; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 2; Last ring under bark: absent
DOI: 10.1594/pangaea.147530
title: Tree-ring width of Quercus species from historical object sample 5889B/11A, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 49; first year: 1686; end year: 1735; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 13; Last ring under bark: present
DOI: 10.1594/pangaea.147549
title: Tree-ring width from historical object sample 5886B/06M, Netherlands, Zutphen

description: Species: not given; No of rings: 33; first year: 1445; end year: 1478; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147554
title: Tree-ring width of Quercus species from historical object sample 5886B/01A, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 30; first year: 1448; end year: 1478; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 7; Last ring under bark: present
DOI: 10.1594/pangaea.147558
title: Tree-ring width of Quercus species from historical object sample 5881B/07M, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 34; Age not determined; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147563
title: Tree-ring width of Quercus species from historical object sample 5881B/04D, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 35; Age not determined; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147564
title: Tree-ring width of Quercus species from historical object sample 5881B/04C, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 36; Age not determined; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147587
title: Tree-ring width of Quercus species from historical object sample 5880B/03A, Netherlands, Nijlande

description: Species: Quercus species; No of rings: 63; Age not determined; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147624
title: Tree-ring width of Quercus species from historical object sample 5851B/07A, Netherlands, Groningen

description: Species: Quercus species; No of rings: 150; first year: 1387; end year: 1537; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 32; Last ring under bark: present
DOI: 10.1594/pangaea.147589
title: Tree-ring width of Quercus species from historical object sample 5880B/02A, Netherlands, Nijlande

description: Species: Quercus species; No of rings: 49; Age not determined; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147608
title: Tree-ring width of Quercus species from historical object sample 5858B/06A, Netherlands, Zeyen Gemeente Tynaarlo

description: Species: Quercus species; No of rings: 115; first year: 1401; end year: 1516; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 21; Last ring under bark: present
DOI: 10.1594/pangaea.147623
title: Tree-ring width of Quercus species from historical object sample 5851B/08A, Netherlands, Groningen

description: Species: Quercus species; No of rings: 94; first year: 1370; end year: 1464; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.148055
title: Tree-ring width of Quercus species from historical object sample 5576B/06A, Netherlands, Assen

description: Species: Quercus species; No of rings: 44; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 2; Last ring under bark: absent
DOI: 10.1594/pangaea.147764
title: Tree-ring width of Quercus species from historical object sample 5757B/01A, Netherlands, Groningen

description: Species: Quercus species; No of rings: 177; first year: 1385; end year: 1562; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 22; Last ring under bark: present
DOI: 10.1594/pangaea.147766
title: Tree-ring width of Quercus species from historical object sample 5756B/03A, Netherlands, Leeuwarden

description: Species: Quercus species; No of rings: 77; first year: 1418; end year: 1495; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147567
title: Tree-ring width of Quercus species from historical object sample 5881B/03D, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 34; Age not determined; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147767
title: Tree-ring width of Quercus species from historical object sample 5756B/02A, Netherlands, Leeuwarden

description: Species: Quercus species; No of rings: 80; first year: 1453; end year: 1533; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 18; Last ring under bark: present
DOI: 10.1594/pangaea.147566
title: Tree-ring width of Quercus species from historical object sample 5881B/04A, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 48; Age not determined; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147759
title: Tree-ring width of Quercus species from historical object sample 5757B/06A, Netherlands, Groningen

description: Species: Quercus species; No of rings: 156; first year: 1406; end year: 1562; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 29; Last ring under bark: present
DOI: 10.1594/pangaea.147760
title: Tree-ring width of Quercus species from historical object sample 5757B/05A, Netherlands, Groningen

description: Species: Quercus species; No of rings: 190; first year: 1370; end year: 1560; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 28; Last ring under bark: present
DOI: 10.1594/pangaea.148059
title: Tree-ring width of Quercus species from historical object sample 5576B/02A, Netherlands, Assen

description: Species: Quercus species; No of rings: 36; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 1; Last ring under bark: absent
DOI: 10.1594/pangaea.148665
title: Tree-ring width of Quercus species from historical object sample 2130B/13A, Netherlands, Norg

description: Species: Quercus species; No of rings: 48; first year: 1229; end year: 1277; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.144709
title: Tree-ring width of Quercus species from historical object sample 6417B/02A, Northern Germany, Niedersachen, Osnabrück

description: Species: Quercus species; No of rings: 67; first year: 1563; end year: 1630
DOI: 10.1594/pangaea.144720
title: Tree-ring width of Quercus species from historical object sample 6417B/13A, Northern Germany, Niedersachen, Osnabrück

description: Species: Quercus species; No of rings: 103; first year: 1520; end year: 1623
DOI: 10.1594/pangaea.143614
title: Heavy mineral contents in 50-100 µm grain size fraction of bottom sediments from the Core AKK2000-126, Barents Sea
DOI: 10.1594/pangaea.145546
title: Tree-ring width of Quercus species from historical object sample 6500B/07A, Netherlands, 's-Hertogenbosch

description: Species: Quercus species; No of rings: 88; first year: 1179; end year: 1267; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 4; Last ring under bark: absent
DOI: 10.1594/pangaea.148326
title: Tree-ring width of Quercus species from historical object sample 5410B/04A, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 112; first year: 1228; end year: 1340; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 17; Last ring under bark: present
DOI: 10.1594/pangaea.148666
title: Tree-ring width of Quercus species from historical object sample 2130B/12A, Netherlands, Norg

description: Species: Quercus species; No of rings: 51; first year: 1440; end year: 1491; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 16; Last ring under bark: absent
DOI: 10.1594/pangaea.151010
title: Tree-ring width of Quercus species from historical object sample 6528B/01A, Germany, Lingen-Schepsdorf

description: Species: Quercus species; No of rings: 78; first year: 1620; tree-death year: 1698; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 15; Last ring under bark: present
DOI: 10.1594/pangaea.144715
title: Tree-ring width of Quercus species from historical object sample 6417B/08A, Northern Germany, Niedersachen, Osnabrück

description: Species: Quercus species; No of rings: 107; first year: 1717; end year: 1824
DOI: 10.1594/pangaea.144717
title: Tree-ring width of Quercus species from historical object sample 6417B/10A, Northern Germany, Niedersachen, Osnabrück

description: Species: Quercus species; No of rings: 103; first year: 1721; end year: 1824
DOI: 10.1594/pangaea.968499
title: Pollen raw counts of sediment core LLCore2 from Lost Lake, British Columbia in 2020

description: This dataset provides pollen counts for the Holocene lacustrine sedimentary sequence retrieved from Lost Lake, Canada (49.4038, -122.9756, 235 m above sea level). The LLCore2 composite sediment core was collected from Lost Lake, in the Lower Seymour Conservation Reserve, North Vancouver, British Columbia, Canada in fall 2020. The composite core is composed of a 0.41 meter surface core, collected using a Glew gravity corer, and a 2.41 meter sediment core collected using a Livingstone piston corer. The chronology was established using 210Pb, 137Cs, and accelerator mass spectrometry 14C radiometric dating. 1-cm³ volumetric pollen samples were selected at 10-cm intervals along the core, and isolated according to Faegri and Iversen (1989) and Moore et al. (1991). Pollen and spores were counted using a Leica M205C stereomicroscope, and measured against depth (m) and age (ka BP). These data were collected to provide information about local and regional changes in ecosystem composition and fire activity throughout the Holocene in the Lower Mainland of British Columbia.
DOI: 10.1594/pangaea.974071
title: Trophic ecology of squids in the Benguela Upwelling System assessed through stomach content, fatty acid and stable isotopes analyses in austral spring 2021 - Stomach contents of squids

description: Squids were collected during the research cruise SO285 on RV Sonne in the northern (nBUS) and southern (sBUS) Benguela Upwelling System between September 13 and October 8, 2021 in order to determine their trophic position and nutritional ecology. The cruise was part of the TRAFFIC (Trophic tRAnsfer eFFICiency in the Benguela Current) project. Samples were retrieved from rectangular midwater trawl (RMT) net hauls at 8 stations in the nBUS (sampling ranged from surface down to 230–600 m) and 5 stations in the sBUS (sampling ranged from surface down to 500–750 m). Furthermore, some squids were caught using hook and line in the upper two meters of the water column at 2 stations in the nBUS (ranging from 20 to 115 min per station, 4–5 rods) and 4 stations in the sBUS (ranging from 45 to 105 min per station, 4–6 rods). At 1 station in sBUS one squid was retrieved from a neuston catamaran haul (NCAT) used to sample the surface layer (0­–20 cm sampling depth). Dorsal mantle length (DML) of each specimen was measured to the nearest mm below. Visual stomach content analyses of 53 stomachs from chosen epi- and mesopelagic squid species were performed using a stereo-microscope (7.5–50x magnification). Stomach content analyses showed that squid species preyed on a variety of organisms ranging from crustaceans to lanternfishes (Myctophidae) and flying squids (Ommastrephidae).
DOI: 10.1594/pangaea.145528
title: Tree-ring width of Picea abies from historical object sample 6509B/01A, Netherlands, Hoorn

description: Species: Picea abies; No of rings: 82; Age not determined; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.148098
title: Tree-ring width of Quercus species from historical object sample 5540B/07B, Netherlands, Gasselte

description: Species: Quercus species; No of rings: 91; first year: 1631; end year: 1722; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 21; Last ring under bark: present
DOI: 10.1594/pangaea.695152
title: Mesozooplankton abundance in water of the Aegean Sea at Station SEPT-1998-IR72wp2

description: Microplankton species composition analysis was performed according to the inverted microscope method of Utermoehl. Samples for identification and enumeration of larger phytoplankton cells (&gt;5µm) were preserved in alkaline Lugol solution. Utermoehl, H., 1958. Zur Vervollkommung der quantitativen Phytoplankton-Methodik. Mitt. Int. Ver. Theor. Angew. Limnol., 9:1-38.
DOI: 10.1594/pangaea.147405
title: Tree-ring width of Quercus species from historical object sample 5917B/03A, Netherlands, Deventer

description: Species: Quercus species; No of rings: 50; first year: 1600; end year: 1650; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147738
title: Tree-ring width of Quercus species from historical object sample 5772B/23A, Netherlands, Groningen

description: Species: Quercus species; No of rings: 73; first year: 1206; end year: 1279; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.147165
title: Tree-ring width of Quercus species from historical object sample 5967B/03A, Netherlands, Sappemeer

description: Species: Quercus species; No of rings: 53; first year: 1534; end year: 1587; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 2; Last ring under bark: absent
DOI: 10.1594/pangaea.147223
title: Tree-ring width of Quercus species from historical object sample 5955B/04C, Netherlands, Wijster

description: Species: Quercus species; No of rings: 79; first year: 1481; end year: 1560; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.146960
title: Tree-ring width of Quercus species from historical object sample 6033B/15A, Netherlands, Diever

description: Species: Quercus species; No of rings: 119; first year: 1640; end year: 1759; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 15; Last ring under bark: present
DOI: 10.1594/pangaea.147980
title: Tree-ring width of Quercus species from historical object sample 5616B/03A, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 71; first year: 1370; end year: 1441; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 2; Last ring under bark: absent
DOI: 10.5281/zenodo.17667142
title: Force-Line Photons: A Topological, Pure-Particle Theory of Light That Eliminates Wave–Particle Duality & Explains Annihilation - RJW

description: Announcing a New Theory of Light: Force-Line Photons

We present a groundbreaking, falsifiable theory of light that eliminates wave–particle duality. In this model, the photon is a bound pair of topological force-lines—one electron-like, one positron-like—propagating in perfect mechanical balance. This pure-particle approach reproduces all key quantum optical phenomena, including the photoelectric effect, Compton scattering, pair production, and even optical interference, using only topology and phase—no waves, no probability amplitudes. The energy of matter and antimatter, locked out of phase, conceals the mass-carrying nature of the photon itself.

The model predicts several decisive experiments, offering a clear path to validation or falsification. If you are interested in the foundations of quantum physics, the nature of mass and charge, or the search for a deeper unity in physical law, we invite you to read and critically examine the full paper:

Force-Line Photons: A Topological, Pure-Particle Theory of Light That Eliminates Wave–Particle Dualityby Robert J. Weber

Test, challenge, and help us discover the truth.
DOI: 10.5281/zenodo.17667143
title: Force-Line Photons: A Topological, Pure-Particle Theory of Light That Eliminates Wave–Particle Duality & Explains Annihilation - RJW

description: Announcing a New Theory of Light: Force-Line Photons

We present a groundbreaking, falsifiable theory of light that eliminates wave–particle duality. In this model, the photon is a bound pair of topological force-lines—one electron-like, one positron-like—propagating in perfect mechanical balance. This pure-particle approach reproduces all key quantum optical phenomena, including the photoelectric effect, Compton scattering, pair production, and even optical interference, using only topology and phase—no waves, no probability amplitudes. The energy of matter and antimatter, locked out of phase, conceals the mass-carrying nature of the photon itself.

The model predicts several decisive experiments, offering a clear path to validation or falsification. If you are interested in the foundations of quantum physics, the nature of mass and charge, or the search for a deeper unity in physical law, we invite you to read and critically examine the full paper:

Force-Line Photons: A Topological, Pure-Particle Theory of Light That Eliminates Wave–Particle Dualityby Robert J. Weber

Test, challenge, and help us discover the truth.
DOI: 10.1594/pangaea.145530
title: Tree-ring width of Quercus species from historical object sample 6508B/07B, Netherlands, Alkmaar

description: Species: Quercus species; No of rings: 70; Age not determined; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 1; Last ring under bark: absent
DOI: 10.1594/pangaea.145789
title: Tree-ring width of Quercus species from historical object sample 6432B/07A, Netherlands, Groningen

description: Species: Quercus species; No of rings: 97; first year: 1453; end year: 1550; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.146778
title: Tree-ring width of Quercus species from historical object sample 6078B/08A, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 52; first year: 1400; end year: 1452; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 13; Last ring under bark: present
DOI: 10.1594/pangaea.145559
title: Tree-ring width of Quercus species from historical object sample 6496B/02D, Netherlands, Dongeradeel-Engelsmanplaat

description: Species: Quercus species; No of rings: 45; first year: 1763; end year: 1808; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.146732
title: Tree-ring width of Quercus species from historical object sample 6114B/06M, Netherlands, Groningen

description: Species: Quercus species; No of rings: 75; first year: 1510; end year: 1585; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.146783
title: Tree-ring width of Quercus species from historical object sample 6078B/03A, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 50; first year: 1391; end year: 1441; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.146409
title: Tree-ring width of Quercus species from historical object sample 6189B/13A, Netherlands, Zutphen

description: Species: Quercus species; No of rings: 79; first year: 1525; end year: 1604; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 19; Last ring under bark: present
DOI: 10.1594/pangaea.146744
title: Tree-ring width of Quercus species from historical object sample 6110B/08M, Netherlands, Baflo

description: Species: Quercus species; No of rings: 84; first year: 1201; end year: 1285; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.146335
title: Tree-ring width of Quercus species from historical object sample 6214B/04A, Netherlands, Meppel

description: Species: Quercus species; No of rings: 78; first year: 1460; end year: 1538; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 13; Last ring under bark: absent
DOI: 10.1594/pangaea.146898
title: Tree-ring width of Quercus species from historical object sample 6047B/01C, Netherlands, Bronckhorst

description: Species: Quercus species; No of rings: 68; first year: 1076; end year: 1144; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 10; Last ring under bark: absent
DOI: 10.1594/pangaea.145988
title: Tree-ring width of Quercus species from historical object sample 6350B/04A, Netherlands, 's-Hertogenbosch

description: Species: Quercus species; No of rings: 25; Age not determined; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.146329
title: Tree-ring width of Quercus species from historical object sample 6214B/11M, Netherlands, Meppel

description: Species: Quercus species; No of rings: 78; first year: 1460; end year: 1538; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.125590
title: Mineral composition of 0.1-0.05 mm size fraction of sediment core PS-1272