cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.60712/si-id49130.1
title: StrainInfo SI-ID 49130.1

description: StrainInfo dataset 49130 about a strain of Thiorhodococcus minor. StrainInfo is a service developed to provide a resolution of microbial strain identifiers by storing culture collection numbers, their relations, and culture-associated data. StrainInfo is part of NFDI4Microbiota consortium.
DOI: 10.60712/si-id48994.1
title: StrainInfo SI-ID 48994.1

description: StrainInfo dataset 48994 about a strain of Escherichia coli. StrainInfo is a service developed to provide a resolution of microbial strain identifiers by storing culture collection numbers, their relations, and culture-associated data. StrainInfo is part of NFDI4Microbiota consortium.
DOI: 10.60712/si-id48995.1
title: StrainInfo SI-ID 48995.1

description: StrainInfo dataset 48995 about a strain of Escherichia coli. StrainInfo is a service developed to provide a resolution of microbial strain identifiers by storing culture collection numbers, their relations, and culture-associated data. StrainInfo is part of NFDI4Microbiota consortium.
DOI: 10.60712/si-id48996.1
title: StrainInfo SI-ID 48996.1

description: StrainInfo dataset 48996 about a strain of Unidentified. StrainInfo is a service developed to provide a resolution of microbial strain identifiers by storing culture collection numbers, their relations, and culture-associated data. StrainInfo is part of NFDI4Microbiota consortium.
DOI: 10.60712/si-id48997.1
title: StrainInfo SI-ID 48997.1

description: StrainInfo dataset 48997 about a strain of Dethiosulfovibrio peptidovorans. StrainInfo is a service developed to provide a resolution of microbial strain identifiers by storing culture collection numbers, their relations, and culture-associated data. StrainInfo is part of NFDI4Microbiota consortium.
DOI: 10.7274/29566115
title: Multiple-Attempt Procedures: Models, Computerized Adaptive Testing, and Differential Item Functioning

description: Multiple-attempt items are an innovative item type that remains under-studied in psychometrics and educational measurement. This dissertation advances the field by (a) extending sequential item-response theory for multiple-choice, multiple-attempt items (SIRT-MM), (b) designing computerized adaptive testing that incorporates multiple-attempt items, and (c) clarifying and detecting differential item functioning for such items.

Chapter 2 introduces two extensions of the SIRT-MM model. The first permits the slope of each item-category response function to vary, while the second freely estimates a pseudo guessing parameter to capture different success rates due to guessing. These models allow a wider range of response-function shapes and are more likely to fit empirical data. Model-selection strategies and parameter estimation methods for the new formulations are also proposed and evaluated.

Chapter 3 explores the integration of multiple-choice, multiple-attempt test items within the Computerized Adaptive Testing (CAT) framework, named as MM-CAT. Using the sequential item response theory model for multiple-choice, multiple-attempt items (Lu, Fowler, & Cheng, 2025), a simulation study was conducted to investigate the effectiveness of a MM-CAT design in improving ability estimation accuracy compared to traditional CAT, which relies on single-attempt, dichotomously scored items. Results show that MM-CAT substantially reduces the standard error of measurement (SEM), bias and root mean square error (RMSE), particularly for examinees with lower ability levels. Furthermore, we examine the impact of item exposure control procedures and find that while both the Sympson-and-Hetter method (SH; Shealy & Stout, 1993) and the Randomesque method (Kingsbury & Zara, 1989) are useful, the SH method is particularly effective in exposure control when paired with MM-CAT, minimizing the severeness of over-exposed items without sacrificing the measurement precision. Taken together, these findings suggest that MM-CAT is a promising approach for enhancing the precision and fairness of adaptive testing, especially in educational contexts where multiple attempts may support both assessment and learning.
 
While multiple-attempt procedures and items have been widely studied, limited research has addressed Differential Item Functioning (DIF) in the context of multiple-attempt items. Chapter 4 formalizes the concept of attempt-level DIF, which captures attempt-specific mechanisms underlying DIF. We present example scenarios to illustrate how attempt-level DIF can arise and propose several detection methods capable of identifying it. Simulation results demonstrate that these methods yield higher true positive rates (i.e., greater power) compared to traditional DIF detection approaches. Their advantage is particularly evident when the sample size and variance of item responses are reduced in the specific attempt where DIF exists.
DOI: 10.7274/29566115.v1
title: Multiple-Attempt Procedures: Models, Computerized Adaptive Testing, and Differential Item Functioning

description: Multiple-attempt items are an innovative item type that remains under-studied in psychometrics and educational measurement. This dissertation advances the field by (a) extending sequential item-response theory for multiple-choice, multiple-attempt items (SIRT-MM), (b) designing computerized adaptive testing that incorporates multiple-attempt items, and (c) clarifying and detecting differential item functioning for such items.

Chapter 2 introduces two extensions of the SIRT-MM model. The first permits the slope of each item-category response function to vary, while the second freely estimates a pseudo guessing parameter to capture different success rates due to guessing. These models allow a wider range of response-function shapes and are more likely to fit empirical data. Model-selection strategies and parameter estimation methods for the new formulations are also proposed and evaluated.

Chapter 3 explores the integration of multiple-choice, multiple-attempt test items within the Computerized Adaptive Testing (CAT) framework, named as MM-CAT. Using the sequential item response theory model for multiple-choice, multiple-attempt items (Lu, Fowler, & Cheng, 2025), a simulation study was conducted to investigate the effectiveness of a MM-CAT design in improving ability estimation accuracy compared to traditional CAT, which relies on single-attempt, dichotomously scored items. Results show that MM-CAT substantially reduces the standard error of measurement (SEM), bias and root mean square error (RMSE), particularly for examinees with lower ability levels. Furthermore, we examine the impact of item exposure control procedures and find that while both the Sympson-and-Hetter method (SH; Shealy & Stout, 1993) and the Randomesque method (Kingsbury & Zara, 1989) are useful, the SH method is particularly effective in exposure control when paired with MM-CAT, minimizing the severeness of over-exposed items without sacrificing the measurement precision. Taken together, these findings suggest that MM-CAT is a promising approach for enhancing the precision and fairness of adaptive testing, especially in educational contexts where multiple attempts may support both assessment and learning.
 
While multiple-attempt procedures and items have been widely studied, limited research has addressed Differential Item Functioning (DIF) in the context of multiple-attempt items. Chapter 4 formalizes the concept of attempt-level DIF, which captures attempt-specific mechanisms underlying DIF. We present example scenarios to illustrate how attempt-level DIF can arise and propose several detection methods capable of identifying it. Simulation results demonstrate that these methods yield higher true positive rates (i.e., greater power) compared to traditional DIF detection approaches. Their advantage is particularly evident when the sample size and variance of item responses are reduced in the specific attempt where DIF exists.
DOI: 10.3535/dhe-ssv-geq
title: Cercopithecidae Gray, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/k88-5cc-mgl
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/myt-b37-q3g
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ftw-krp-a49
title: Bovidae Gray, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/kl4-ka0-n7j
title: Sus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/bh0-p2v-4dk
title: Bubalus C. H. Smith, 1827

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/pdt-1x4-mfj
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/fve-epm-hsp
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/l64-k76-0c6
title: Homo sapiens Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/992-ydq-kbt
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/lbc-z6l-ysc
title: Pongo pygmaeus (Linnaeus, 1760)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ljs-f3r-mhs
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/s7m-n7k-b82
title: Pongo pygmaeus (Linnaeus, 1760)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/wx4-r7q-lg0
title: Sus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/qff-cgl-v31
title: Bovidae Gray, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tn5-fb1-k20
title: Rusa timorensis (Blainville, 1822)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/chx-0ew-hvk
title: Malvaceae Juss.

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/z6v-x2g-4w3
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/bc8-qwx-zpn
title: Pongo pygmaeus (Linnaeus, 1760)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/e68-al1-bnf
title: Cervus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/9vj-ntd-1j4
title: Cervus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ddh-fx6-717
title: Elephas Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ace-epy-nve
title: Bovidae Gray, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/cqc-dzm-gmz
title: Bovidae Gray, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ntl-bdk-dnd
title: Duboisia Szidat, 1936

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.15468/dl.nj6yu6
title: Occurrence Download

description: A dataset containing 343 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Arundo donax",
 "Country is New Zealand",
 "HasCoordinate is true"
 ]
}

 The dataset includes 343 records from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0020401-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/rda-jt5-wah
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/vqd-vjy-wwy
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/k1h-h8b-t12
title: Rhinoceros sondaicus Desmarest, 1822

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/m5a-j58-v67
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.15468/dl.se2pj6
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Arundo donax",
 "Country is North Macedonia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0020402-250811113504898/datasets/export for details.
DOI: 10.3535/hgp-c6f-7ah
title: Bovidae Gray, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/j10-gwq-1sk
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/jv3-wmx-zev
title: Pongo pygmaeus (Linnaeus, 1760)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/j43-qlg-10d
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/rbp-wdw-8h5
title: Foraminifera d'Orbigny, 1826

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/sx4-e3l-ql6
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/54e-maz-4j0
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tlf-ery-2ll
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/51f-na4-91h
title: Sus scrofa Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/dee-28q-pry
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.25673/104401
title: Fotoglasplatte_Geografie_32.0215_Husum Marsch u. Alter Deich

description: Geokart_Nr: 32.0215, Beschreibung: Koog (Marschenland), Damm , Ort: Deutschland, Schleswig-Holstein, Medium, Format: Diapositiv s/w, 98x83
DOI: 10.25673/104458
title: Fotoglasplatte_Geografie_32.0613_Blankenese mit Süllberg

description: Geokart_Nr: 32.0613, Beschreibung: Vordergrund Unterelbe und im Hintergrund Süllberg, Ort: Deutschland, Unterelbe, Medium, Format: Diapositiv s/w, 98x83
DOI: 10.25673/109017
title: Fotoglasplatte_Geografie_31.1503_Kottenheide b. Schöneck s. Falkenstein, Erzgeb.

description: Geokart_Nr: 31.1503, Beschreibung: Haus im Schnee unter Bäumen, Ort: Deutschland, Erzgebirge, Medium, Format: Diapositiv s/w, 99x84
DOI: 10.25673/104368
title: Fotoglasplatte_Geografie_31.0913_Stö 110,12 Insel Föhr, Schutzdeich

description: Geokart_Nr: 31.0913, Beschreibung: Schutzdeich, Ort: Deutschland, Schleswig-Holstein, Medium, Format: Diapositiv s/w, 98x83
DOI: 10.25673/104278
title: Fotoglasplatte_Geografie_31.0205_0

description: Geokart_Nr: 31.0205, Beschreibung: Kartenausschnitt, Süddeutschland [Bayern], Ort: Deutschland, Süddeutschland, Medium, Format: Diapositiv s/w, farbig, 118x88
DOI: 10.25673/109253
title: Fotoglasplatte_Geografie_33.1408_Elbsandstgeb. Sächsische Schweiz I. 7. Blick von der Elbe nach der Bastei

description: Geokart_Nr: 33.1408, Beschreibung: im Vordergrund Fluß, im Hintergrund Sandsteinformation, Ort: Deutschland, Elbsandsteingebirge / Sächsische Schweiz, Medium, Format: Diapositiv farbig, 98x84
DOI: 10.25673/104408
title: Fotoglasplatte_Geografie_32.0307_Dammbau Nordstrand, Fertiger Damm mit Blick auf Watt

description: Geokart_Nr: 32.0307, Beschreibung: Damm mit Watt, Ort: Deutschland, Norddeutschland, Medium, Format: Diapositiv s/w, 98x83
DOI: 10.25673/104415
title: Fotoglasplatte_Geografie_32.0314_Bau von Buschlahnungen

description: Geokart_Nr: 32.0314, Beschreibung: Männer beim Bau von Buschlahnungen , Ort: , , Medium, Format: Diapositiv s/w, 98x83
DOI: 10.25673/104313
title: Fotoglasplatte_Geografie_31.0502_Hamburg. Hafenbild

description: Geokart_Nr: 31.0502, Beschreibung: Hafen, große Schiffe, Ort: Deutschland, Norddeutschland, Medium, Format: Diapositiv s/w, 98x83
DOI: 10.25673/109135
title: Fotoglasplatte_Geografie_32.1313_Das Müglitztal, abw. Gesehen (Standpkt. nördl. Rückenhain)

description: Geokart_Nr: 32.1313, Beschreibung: Links und rechts bewaldete Berghänge, dazwischen Felder und Waldgebiet, Bildmitte Station der Müglitztalbahn, Ort: Deutschland, Osterzgebirge / Sachsen, Medium, Format: Diapositiv s/w, 99x84
DOI: 10.25673/109072
title: Fotoglasplatte_Geografie_31.1812_Hammerwerk Schlzgrube bei Jöhstadt von SW

description: Geokart_Nr: 31.1812, Beschreibung: Links Waldrand mit Nadelbäumen, rechts einzelnes Haus; Bildmitte Gitterstrommast, dahinter mehrere Gebäude, rechts daneben Turmruine an einem terassenförmig angelegten Hang, im Hintergrund Nadelwald, Ort: Deutschland, Erzgebirge / Sachsen, Medium, Format: Diapositiv s/w, 99x84
DOI: 10.25673/109028
title: Fotoglasplatte_Geografie_31.1512_Vogtland. Blick vom Aschberg in d. "klingenden Täler"

description: Geokart_Nr: 31.1512, Beschreibung: im Hintergrund Hügelkette im Vordergrund Abhang mit Häusern in der Mitte Tal mit Ortschaft, Ort: Deutschland, Vogtland, Medium, Format: Diapositiv s/w, 99x84
DOI: 10.25673/109055
title: Fotoglasplatte_Geografie_31.1711_Schwarzenberg im Erzgebirge

description: Geokart_Nr: 31.1711, Beschreibung: Im Vordergrund die Waldbühne, dahinter Blick auf die Kirche und das Schloss; im Hintergrund Felder und Wälder, Ort: Deutschland, Erzgebirge / Sachsen, Medium, Format: Diapositiv s/w, 99x84
DOI: 10.25673/109158
title: Fotoglasplatte_Geografie_32.1504_Zadlitzbruch nö. Eilenburg (Wollgras)

description: Geokart_Nr: 32.1504, Beschreibung: Moorlandschaft mit abgestorbenen Bäumen sowie blühenden Pflanzen, Ort: Deutschland, Dübener Heide / Sachsen, Medium, Format: Diapositiv s/w, 99x84
DOI: 10.25673/109196
title: Fotoglasplatte_Geografie_32.1809_Zehren nw. Meißen. Blick vom Burgberg elbaufwärts

description: Geokart_Nr: 32.1809, Beschreibung: Blick über Gebäudedächer auf Obstplantage und Fluss, auf dem Fluss mehrere Schleppkähne; Ortschaft am gegenüberliegenden Flussufer, Ort: Deutschland, Mittelsachsen / Sachsen, Medium, Format: Diapositiv s/w, 99x84
DOI: 10.25673/109255
title: Fotoglasplatte_Geografie_33.1505_Prebischthor (natürliche Brücke)

description: Geokart_Nr: 33.1505, Beschreibung: seitlicher Bick auf das Prebischtor , das grösste natürliche Felsentor ,es hat an seinem Fuss 1 kleines Häuschen mit Eichenrinde beschlagen, Ort: Deutschland / Tchechien, Elbsandsteingebirge / Böhmische Schweiz, Medium, Format: Diapositiv s/w, 98x84
DOI: 10.25673/109059
title: Fotoglasplatte_Geografie_31.1715_Brücke bei Wolkenstein

description: Geokart_Nr: 31.1715, Beschreibung: Bildmitte Tal mit Eisenbahnbrücke über den Fluss [Zschopau], rechts daneben Steinbrücke; im Hintergrund bewachsener Felshang , Ort: Deutschland, Westerzgebirge / Sachsen, Medium, Format: Diapositiv s/w, 118x89
DOI: 10.25673/104468
title: Fotoglasplatte_Geografie_31.1010_Rothenburg ob der Taubertal

description: Geokart_Nr: 31.1010, Beschreibung: Gehöfft eingebettet von bewaldeten Hängen li. und re.; Flußlauf der Tauber, Ort: Deutschland, Franken / Bayern, Medium, Format: Diapositiv s/w, 84x98
DOI: 10.25673/109302
title: Fotoglasplatte_Geografie_33.1706_Kiefern Heidewald b.Klösterlich-Neudorf

description: Geokart_Nr: 33.1706, Beschreibung: Kiefern-Heidewald bei Klösterlich Neudorf, Ort: Deutschland, Lausitz / Sachsen, Medium, Format: Diapositiv s/w, 98x83
DOI: 10.25673/104421
title: Fotoglasplatte_Geografie_32.0404_Düne nördl. Weaterland

description: Geokart_Nr: 32.0404, Beschreibung: Dünenlandschaft Schleswig Holstein, Ort: Deutschland, Schleswig Holstein, Medium, Format: Diapositiv s/w, 98x83
DOI: 10.25673/104490
title: Fotoglasplatte_Geografie_31.1208_Schafherde im Fränk.Jura

description: Geokart_Nr: 31.1208, Beschreibung: Schafherde am Berghang, Ort: Deutschland, Franken, Medium, Format: Diapositiv s/w, 98x84
DOI: 10.25673/109125
title: Fotoglasplatte_Geografie_32.1303_Erzgeb.: Klingenberger Talsperre. Staumauer v. oben

description: Geokart_Nr: 32.1303, Beschreibung: Staumauer mit Abfluß, im Hintergrund Stausee, Ort: Deutschland, Erzgebirge/Sachsen, Medium, Format: Diapositiv s/w, 99x84
DOI: 10.25673/104352
title: Fotoglasplatte_Geografie_31.0801_Torfmoor b. Oldenbrok,Oldenburg

description: Geokart_Nr: 31.0801, Beschreibung: Bearbeiten von Torfmoor, Ort: Deutschland, Nordwestdeutschland, Medium, Format: Diapositiv s/w, 98x83
DOI: 10.25673/109147
title: Fotoglasplatte_Geografie_32.1408_Mittelsachsen. Mittelsächs.Bergland. Tal d. Gr. Striegis unth. Pappendorf

description: Geokart_Nr: 32.1408, Beschreibung: , Ort: Deutschland, Sachsen, Medium, Format: Diapositiv s/w, 98x84
DOI: 10.25673/109228
title: Fotoglasplatte_Geografie_33.1206_Sächsische Schweiz I, Königstein (78112)

description: Geokart_Nr: 33.1206, Beschreibung: Im Vordergrund abgeerntete Felder, Bild rechts Gehöft, Bildmitte links Blick auf den Königstein, Ort: Deutschland, Elbsandsteingebirge / Sächsische Schweiz, Medium, Format: Diapositiv farbig, 99x84
DOI: 10.25673/103872
title: Fotoglasplatte_Geografie_31.0101_Landgewinnung an der Westküste Schleswig-Holsteins (Karte)

description: Geokart_Nr: 31.0101, Beschreibung: Kartenausschnitt Westküste Schleswig-Holsteins , Ort: Deutsches Reich / Deutschland, Schleswig-Holstein, Medium, Format: Diapositiv s/w, 98x84
DOI: 10.34810/data1864
title: Replication Data for: Individual Choices of Wintering Areas Drive Adult Survival Heterogeneity in a Long‐Lived Seabird
title: CALDIO_geo_analysis_EcolEvol
title: Individual Choices of Wintering Areas Drive Adult Survival Heterogeneity in a Long‐Lived Seabird

description: &lt;/p&gt;This dataset contains different supplementary material of Genovart et al. 2024, "Individual choices of wintering areas drive adult survival heterogeneity in a long-lived seabird", Ecology and Evolution, to be able to replicate these and similar results: &lt;p&gt;
&lt;/p&gt;- R code for users: R scripts allow to estimate values of zenith, zenith0 and alpha (mean & sd) for every geolocator from the calibration periods. Also, they allow to model twlight and geolocation data to ultimately estimate coordinates. 
&lt;/p&gt;- Data on three examples of the study, including: (a) geolocation data (.lig & .trn files), (b) key date information on activation and calibration of those three geolocators as well as the specific phenology of the examples (.csv files), and (c) a landmask we used for the data filtering (spatial polygons).
DOI: 10.15468/dl.d8psdz
title: Occurrence Download

description: A dataset containing 154293 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Dactylorhiza fuchsii",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Observation, Occurrence evidence)",
 "OccurrenceStatus is Present",
 "HasCoordinate is true"
 ]
}

 The dataset includes 154293 records from 560 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024803-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.7910/dvn/mlhx7h
title: Replication Data: IRRI Long Term Continuous Cropping Experiment 2009
title: IRRI LTCCE 2009

description: This study contains grain yield data collected from IRRI's long term continuous cropping experiment, 2009
description: application/txt