cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.26792810
title: Tightening Blocks in Complementary Analyses of Observational Studies: Optimization Algorithm and Examples

description: An observational block design has <i>I</i> blocks matched for covariates and <i>J</i> individuals per block, but treatments were not randomly assigned to individuals within blocks, as would have been done in an experiment. Tightening an observational block design means selecting J′&lt;J individuals from each block, and possibly I′≤I blocks, to construct a new observational block design that, in some way, addresses unmeasured biases from nonrandom treatment assignment. Tightening must preserve covariate balance while altering the design to achieve some additional objective. An optimization algorithm is introduced that achieves this while maintaining the block structure by finely balancing covariates across blocks and through optimal subset matching. An example is considered in detail, both to motivate and illustrate the tightening of an observational block design. Two tightened designs are built from a study of light daily alcohol consumption and its possible effects on HDL cholesterol. One tightened design adjusts for an outcome tentatively presuming it was unaffected by the treatment. The second tightened design uses a differential effect to remove bias from an unobserved general disposition that promotes several treatments. An R package tightenBlock implements the method, contains the data, and in that package the help-file for the function tighten reproduces the example.
DOI: 10.6084/m9.figshare.26792810.v1
title: Tightening Blocks in Complementary Analyses of Observational Studies: Optimization Algorithm and Examples

description: An observational block design has <i>I</i> blocks matched for covariates and <i>J</i> individuals per block, but treatments were not randomly assigned to individuals within blocks, as would have been done in an experiment. Tightening an observational block design means selecting J′&lt;J individuals from each block, and possibly I′≤I blocks, to construct a new observational block design that, in some way, addresses unmeasured biases from nonrandom treatment assignment. Tightening must preserve covariate balance while altering the design to achieve some additional objective. An optimization algorithm is introduced that achieves this while maintaining the block structure by finely balancing covariates across blocks and through optimal subset matching. An example is considered in detail, both to motivate and illustrate the tightening of an observational block design. Two tightened designs are built from a study of light daily alcohol consumption and its possible effects on HDL cholesterol. One tightened design adjusts for an outcome tentatively presuming it was unaffected by the treatment. The second tightened design uses a differential effect to remove bias from an unobserved general disposition that promotes several treatments. An R package tightenBlock implements the method, contains the data, and in that package the help-file for the function tighten reproduces the example.
DOI: 10.6084/m9.figshare.25913293.v1
title: Sequential monitoring using the Second Generation P-Value with Type I error controlled by monitoring frequency

description: The Second Generation P-Value (SGPV) measures the overlap between an estimated interval and a composite hypothesis of parameter values. We develop a sequential monitoring scheme of the SGPV (SeqSGPV) to connect study design intentions with end-of-study inference anchored on scientific relevance. We build upon Freedman’s “Region of Equivalence” (ROE) in specifying scientifically meaningful hypotheses called Pre-specified Regions Indicating Scientific Merit (PRISM). We compare PRISM monitoring versus monitoring alternative ROE specifications. Error rates are controlled through the PRISM’s indifference zone around the point null and monitoring frequency strategies. Because the former is fixed due to scientific relevance, the latter is a targettable means for designing studies with desirable operating characters. An affirmation step to stopping rules improves frequency properties including the error rate, the risk of reversing conclusions under delayed outcomes, and bias.
DOI: 10.6084/m9.figshare.26169340
title: Distance Covariance, Independence, and Pairwise Differences

description: Distance covariance (Székely, Rizzo, and Bakirov) is a fascinating recent notion, which is popular as a test for dependence of any type between random variables <i>X</i> and <i>Y</i>. This approach deserves to be touched upon in modern courses on mathematical statistics. It makes use of distances of the type |X−X′| and |Y−Y′|, where (X′,Y′) is an independent copy of (<i>X</i>, <i>Y</i>). This raises natural questions about independence of variables like X−X′ and Y−Y′, about the connection between cov(|X−X′|,|Y−Y′|) and the covariance between doubly centered distances, and about necessary and sufficient conditions for independence. We show some basic results and present a new and nontechnical counterexample to a common fallacy, which provides more insight. We also show some motivating examples involving bivariate distributions and contingency tables, which can be used as didactic material for introducing distance correlation.
DOI: 10.6084/m9.figshare.26169340.v1
title: Distance Covariance, Independence, and Pairwise Differences

description: Distance covariance (Székely, Rizzo, and Bakirov) is a fascinating recent notion, which is popular as a test for dependence of any type between random variables <i>X</i> and <i>Y</i>. This approach deserves to be touched upon in modern courses on mathematical statistics. It makes use of distances of the type |X−X′| and |Y−Y′|, where (X′,Y′) is an independent copy of (<i>X</i>, <i>Y</i>). This raises natural questions about independence of variables like X−X′ and Y−Y′, about the connection between cov(|X−X′|,|Y−Y′|) and the covariance between doubly centered distances, and about necessary and sufficient conditions for independence. We show some basic results and present a new and nontechnical counterexample to a common fallacy, which provides more insight. We also show some motivating examples involving bivariate distributions and contingency tables, which can be used as didactic material for introducing distance correlation.
DOI: 10.6084/m9.figshare.28271063
title: A Review of Design of Experiments Courses Offered to Undergraduate Students at American Universities

description: Design of Experiments (DoE) is a relevant class to undergraduate students in the sciences, because it teaches them how to plan, conduct, and analyze experiments. In the literature on DoE, there are several contributions to its pedagogy, such as easy-to-use class experiments, virtual experiments, and software to construct experimental designs. However, there are virtually no systematic evaluations of the actual DoE pedagogy. To address this issue, we build the first database of DoE courses offered to undergraduate students in the United States. The database has records on courses offered from 2019 to 2022 at the best universities in the US News Best National Universities ranking of 2022. Specifically, it has data on 18 general and content-specific features of 206 courses. To study the DoE pedagogy, we analyze the database using descriptive statistics and text mining. Based on our analysis, we provide instructors with recommendations and teaching material to enhance their DoE courses. The database and material are included in the supplement of this article.
DOI: 10.6084/m9.figshare.25742992
title: A Simple and Fast Algorithm for Generating Correlation Matrices with a Known Average Correlation Coefficient

description: This article describes a simple and fast algorithm for generating correlation matrices (R) with a known average correlation. The algorithm should be useful for researchers desiring plausible <i>R</i> matrices for substantive domains in which average correlations are known (at least approximately). The method is non-iterative and it can solve relatively large problems (e.g., generate a 500 × 500 <i>R</i> matrix) in less than a second on a personal computer. It also has didactic value for introducing students to the convex set of feasible <i>R</i> matrices of a fixed dimension. This Euclidean body is called an elliptope. The proposed method exploits the geometry of elliptopes to efficiently generate realistic <i>R</i> matrices with a desired average correlation coefficient. R code for implementing the algorithm (and for reproducing all of the results of this article) is reported in an online supplement.
DOI: 10.6084/m9.figshare.25742992.v1
title: A Simple and Fast Algorithm for Generating Correlation Matrices with a Known Average Correlation Coefficient

description: This article describes a simple and fast algorithm for generating correlation matrices (R) with a known average correlation. The algorithm should be useful for researchers desiring plausible <i>R</i> matrices for substantive domains in which average correlations are known (at least approximately). The method is non-iterative and it can solve relatively large problems (e.g., generate a 500 × 500 <i>R</i> matrix) in less than a second on a personal computer. It also has didactic value for introducing students to the convex set of feasible <i>R</i> matrices of a fixed dimension. This Euclidean body is called an elliptope. The proposed method exploits the geometry of elliptopes to efficiently generate realistic <i>R</i> matrices with a desired average correlation coefficient. R code for implementing the algorithm (and for reproducing all of the results of this article) is reported in an online supplement.
DOI: 10.15468/dd.cpvxux
title: Early Eocene Global Vegetation Modern Plant Distribution Dataset

description: Global occurrence for early Eocene fossil plant Nearest Living Relatives (NLRs) from the Global Biodiversity Information Facility (GBIF: https://www.gbif.org/), used for palaeoclimate reconstruction.
DOI: 10.15468/dl.v5n55u
title: Occurrence Download

description: A dataset containing 68 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Pseudamussium clavatum",
 "HasCoordinate is true",
 "BasisOfRecord is one of (Observation, Machine Observation, Human Observation, Occurrence evidence)",
 {
 "not" : {
 "OccurrenceStatus" : [
 "is one of (Absent)"
 ]
 }
 }
 ]
}

 The dataset includes 68 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0019017-250914085247600/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.30165685
title: Original clinical trial data

description: A multicenter prospective 6-month cohort trial to evaluate the efficacy and safety of blueberry anthocyanin extract (BAE) supplementation on metabolic health and fatigue in elderly patients with type 2 diabetes (T2D), focusing on intervention duration and timing.Four cohorts:A: CON-6 (control, received normal drug therapy without BAE for all six months); B: BAE-3F (received BAE supplementation for the first three months only); C: BAE-3L (received BAE supplementation for the last three months only); D: BAE-6 (received BAE supplementation throughout the entire six-month period).
DOI: 10.6084/m9.figshare.30165685.v1
title: Original clinical trial data

description: A multicenter prospective 6-month cohort trial to evaluate the efficacy and safety of blueberry anthocyanin extract (BAE) supplementation on metabolic health and fatigue in elderly patients with type 2 diabetes (T2D), focusing on intervention duration and timing.Four cohorts:A: CON-6 (control, received normal drug therapy without BAE for all six months); B: BAE-3F (received BAE supplementation for the first three months only); C: BAE-3L (received BAE supplementation for the last three months only); D: BAE-6 (received BAE supplementation throughout the entire six-month period).
DOI: 10.5287/ora-xq2zmgg8e
title: Simon Peter in scripture and memory

description: This record holds extracts from the website (https://simonpeter.bodleian.ox.ac.uk/), supplying supplementary ancient source material for the following two books: 

• Bockmuehl, Markus. 2010. <i>The Remembered Peter in Ancient Reception and Modern Debate</i>. Wissenschaftliche Untersuchungen zum Neuen Testament 262. Tübingen: Mohr Siebeck. 

• Bockmuehl, Markus. 2012. <i>Simon Peter in Scripture and Memory</i>. Grand Rapids: Baker Academic. 

The aim is to facilitate access to some of the primary source texts illustrating the profile of Simon Peter in the early church. 

Use the PDFs to explore the evidence from five successive historical periods or “Generations” of memory related to Peter (a designation of convenience explained in both volumes). Note also the separate PDFs providing a Key to the Abbreviations and a partial reference bibliography of sources cited. 

Not all sources listed here are discussed in detail in the two books, and the inclusion of material under “Generation" 3 and especially 4 is deliberately eclectic and illustrative.

For biblical texts and/or translations, only references are provided. Original languages are here limited to Greek and Latin; if time and resources permit, others may be added in the future.
DOI: 10.15468/dl.4frymc
title: Occurrence Download

description: A dataset containing 6199661 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Callidiellum rufipennis, Cyrtogenius luteus, Xylosandrus crassiusculus, Bathysciola derosasi, Parabathyscia dematteisi, Chrysomphalus aonidum, Corythucha arcuata, Dryocosmus kuriphilus, Orthoptera, Coturnix japonica, Leiothrix lutea, Erinaceus europaeus, Glis glis, Passalurus nonanulatus, Strongyloides, Trichostrongylus, Trichostrongylus calcaratus, Trachycarpus fortunei, Commelina communis, Murdannia keisak)",
 "BasisOfRecord is one of (Machine Observation, Human Observation, Observation)",
 "HasCoordinate is true",
 "Year is greater than or equal to 1990"
 ]
}

 The dataset includes 6199661 records from 6406 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0018967-250914085247600/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/zzj-03p-wda
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.13140/rg.2.2.13015.91042
title: CITA DEL TRABAJ0: CONSEJO DE SALUBRIDAD GENERAL. CUADRO BÁSICO DE MEDICAMENTOS DEL SECTOR SALUD. ISSSTE. EDICIÓN 2009.
DOI: 10.3535/05m-a8z-q9d
title: Salix glabra Scop. x Salix retusa L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/15g-egm-rtf
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/y5v-pr2-4sj
title: Salix geyeriana Andersson

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/czv-q2w-z0c
title: Salix fragilis L. x Salix triandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/qtk-ghs-93r
title: Salix glandulifera Flod.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/vv2-b8e-rnx
title: Salix fragilis L. x Salix triandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/2ms-rnr-eya
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/j6v-h19-cld
title: Salix glandulifera Flod. x Salix lanata L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/k92-77j-zss
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/3rq-nme-0zy
title: Salix fragilis L. x Salix triandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/drs-t0h-1pe
title: Salix fragilis L. x Salix triandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/m4t-a3j-vka
title: Salix geyeriana Andersson

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.13140/rg.2.2.30107.69929
title: Slope-ratio assay of the effect of dietary Se source and supplemental Se intake on relative muscle Se content in lambs.
DOI: 10.3535/57g-z5d-rcf
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/bva-lc1-qtt
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/h13-f8v-jk7
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/h2j-hq7-y6d
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/v55-lg4-3w9
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/7qq-kex-j6h
title: Salix glandulifera Flod. x Salix hastata L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/9rz-xdz-b0w
title: Salix glandulifera Flod.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/vey-9vd-3jr
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.13140/rg.2.2.16200.96002
title: Comentários sobre a efetividade da aplicação dos métodos adequados de resolução de conflitos em matéria ambiental/Comentarios sobre la efectividad de la aplicación de métodos apropiados de resolución de conflictos en asuntos ambientales/Comments on the effectiveness of the application of appropriate conflict resolution methods in environmental matters
DOI: 10.3535/1ec-apf-51k
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/hve-zm1-plw
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/wbk-vbm-25a
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.13140/rg.2.2.11744.51201
title: New Orleans - Tulane University - Audubon Park - Cityscapes, Cloudscapes, Landscapes & Seascapes Series, c. 1992
DOI: 10.3535/8fm-109-4tn
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/9wg-zrc-s5l
title: Salix geyeriana Andersson

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/wy2-pe8-wl9
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/ll9-6d9-rhq
title: Salix fragilis L. x Salix triandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/pq9-0h9-wbl
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.13140/rg.2.2.20765.33767
title: Figura de ubicación relativa y mapa de cobertura vegetal del Parque Nacional El Guache, 1996
DOI: 10.3535/76k-t55-psc
title: Salix glabra Scop. x Salix retusa L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/nfg-m02-lfv
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/xgt-6jt-4zw
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/01h-dkw-kqt
title: Salix fragilis L. x Salix triandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/9wb-rhl-f50
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/ntj-ykp-3c6
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.15468/dl.y4uz56
title: Occurrence Download

description: A dataset containing 34209 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Belgium",
 "TaxonKey is one of (Crassula helmsii, Lithobates catesbeianus, Misgurnus mohoity, Myriophyllum aquaticum, Procambarus clarkii, Procambarus virginalis, Xenopus laevis, Zizania latifolia)",
 "OccurrenceStatus is Present",
 "Year is greater than or equal to 2000"
 ]
}

 The dataset includes 34209 records from 38 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0031329-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/a6m-8rh-mlt
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/fsr-vxd-cs6
title: Salix geyeriana Andersson

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/vg5-l3y-56z
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/4qk-k8m-4ay
title: Salix fragilis L. x Salix triandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/87y-4fd-6gc
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/e7b-4q4-cgz
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/6ar-0cr-ldd
title: Salix glandulifera Flod. x Salix hastata L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/8jp-rsx-dye
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/xqh-s0t-xqn
title: Salix glabra Scop.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/1t1-e3g-4z4
title: Salix fragilis L. x Salix pentandra L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/st2-tm7-y0q
title: Salix fumosa var. laxiflora Popov

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/z2e-a5m-xv2
title: Salix glandulifera Flod. x Salix lanata L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.