cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5281/zenodo.16927393
title: Data and code for: Temporal and Spatial Variation in Temperature and Oxygen at the Microscale: Key Niche Axes for Aquatic Life

description: Data on water temperature and water oxygenation were collected in four different water bodies (i.e. sites), two running and two standing.

WaterbodiesThese were all located on private lands in Devon (UK, 50°29'N 3°48'W). Running waters were the river Mardle, which originates on Dartmoor and discharges into the river Dart and a small first order stream, which discharges into the river Mardle. Standing waters comprised a duckpond in a forest and a sun-exposed reservoir, both close to Buckfastleigh.

Water loggersHandy Polaris Loggers (OxyGuard) were deployed in each site. Periodically these were retrieved, read out, calibrated, serviced and redeployed during the period from December 23rd 2011 to July 17th 2012. Loggers were placed such that they measured the oxygen conditions in the water column, 5-10 cm above the sediment, at a depth of 20-40 cm (note that this is equivalent to the open water microhabitat sampled below).

Spot measurementsWe also performed spot measurements to characterise microhabitat conditions during 5 field visits (Table S1). On each visit, water temperature and water oxygenation were measured across representative microhabitats in each site. Typically, 3-5 microhabitats would be measured, and each type of microhabitat would be measured at 5 different spots in the waterbody (i.e. replicates) in the morning and in the afternoon. Spot measurements were made in the littoral zone at a depth up to ~40 cm, and replicate measurements were made in close proximity of one another (within a few meters along the shoreline). Since all four water bodies were quite shallow (< 2 m), no attempt was made to characterise the vertical gradient. Instead, measurements were focussed on the shallow, littoral zone, where insolation is highest and where the vast majority of macroinvertebrates reside. Over these 5 field visits, we collected 775 spot measurements (3-5 microhabitats x morning and afternoon x 5 replicates x 4 sites x 5 visits). We used a battery powered, portable Fibox 3 LCD Trace oxygen meter with a temperature sensor and a DP-PST3 optical oxygen sensor, the end of which is covered in a steel tube to protect both the sensor material and the optical fiber (PreSens GmBH, Germany).
DOI: 10.21954/ou.rd.29966662
title: LGBQ Individuals on Their Pathways to Leadership: Italy analysis

description: This data set includes two documents of analysis of data from a study with 9 LGBQ people in leadership in Italy. This is part of a qualitative research project that explored the leadership experiences of people who identify as lesbian, gay, bisexual and queer (LGBQ) in the UK (primary study) and Italy (secondary study), and what these experiences reveal about social norms, marginalization, and power relations in leadership and in workplaces. As a multi-sited study, this research provided a cross-cultural comparison between the UK, where there is greater support/protection for LGBQ people in the workplace, and Italy, where workplace protections are limited.
DOI: 10.21954/ou.rd.29966662.v1
title: LGBQ Individuals on Their Pathways to Leadership: Italy analysis

description: This data set includes two documents of analysis of data from a study with 9 LGBQ people in leadership in Italy. This is part of a qualitative research project that explored the leadership experiences of people who identify as lesbian, gay, bisexual and queer (LGBQ) in the UK (primary study) and Italy (secondary study), and what these experiences reveal about social norms, marginalization, and power relations in leadership and in workplaces. As a multi-sited study, this research provided a cross-cultural comparison between the UK, where there is greater support/protection for LGBQ people in the workplace, and Italy, where workplace protections are limited.
DOI: 10.18150/sohvgu
title: Ninhydrin method allow for measurement of the postprandial appearance of peptides in blood

description: The aim of the project was to investigate the absorption of protein digestion products in a porcine model, both in healthy animals and in pigs with surgically induced exocrine pancreatic insufficiency (EPI). The study focused on the quantitative assessment of free amino acids and short-chain peptides (di- and tripeptides) in plasma after a meal. A modified ninhydrin method was used for the determination, which enables the detection of free amino groups.The repository contains data including: raw absorbance measurements (570 nm) obtained from plasma samples collected at precisely defined time intervals after a meal (Mixed Meal Tolerance Tests, MMTT), calibration data from prepared amino acid standards, normalized values ​​after correction for blank samples and averaging of technical replicates, as well as a summary of free amino acid and peptide concentrations over time. Data were obtained by: (1) collecting blood samples from indwelling venous catheters during MMTT tests, (2) filtering out large proteins using 10 kDa filters, (3) using the ninhydrin reaction to detect free amino groups before and after acid hydrolysis (pH 5.5), (4) spectrophotometric measurements and recording the results in tabular form.The datasets allow for analysis of the effect of diet type (high-fat, substrate-supplemented diets) and enzyme supplementation (Creon®, microbial amylase) on the kinetics of amino acid and peptide absorption. They can be used in comparative studies, translational dietetics, and to evaluate the effectiveness of enzyme therapy. The results confirm that in pigs, the predominant forms of protein digestion products absorbed are di- and tripeptides, while the proportion of free amino acids in plasma remains limited.
DOI: 10.15468/dl.hfajs5
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is ISEA PAS European Diptera Collection",
 "Country is Croatia"
 ]
}

 The dataset includes 2 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032033-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.3aexg8
title: Occurrence Download

description: A dataset containing 28 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is The fossil collection (F) of the Muséum national d'Histoire naturelle (MNHN - Paris)",
 "Country is Croatia"
 ]
}

 The dataset includes 28 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032034-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.nyr7kz
title: Occurrence Download

description: A dataset containing 937170 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is HG_OOSTENDE - Herring gulls (Larus argentatus, Laridae) breeding at the southern North Sea coast (Belgium)",
 "Country is Belgium"
 ]
}

 The dataset includes 937170 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032018-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.2njhs7
title: Occurrence Download

description: A dataset containing 156610 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is DELTATRACK - Herring gulls (Larus argentatus, Laridae) and lesser black-backed gulls (Larus fuscus, Laridae) breeding at Neeltje Jans (Netherlands)",
 "Country is Belgium"
 ]
}

 The dataset includes 156610 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032017-250811113504898/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.29850102
title: Latissimus-dorsi-inspired trunk torsion mechanism for quadruped robot spine design

description: The body structure of living organisms provides a useful insight into sophisticated designs for robots. Incorporating a spine into quadruped robots has become a trend, with implementations of trunk flexion and torsion through the spine aimed at improving locomotion performance. However, the integration of multidirectional spine shape change requires a streamlined design to minimize mechanical complexity. This study introduces a spine structure inspired by the latissimus dorsi muscles that wrap around the trunk of quadruped animals, connecting the dorsal trunk to the forelimbs. The proposed design achieves two functions: generating trunk torsion through differential contraction of left and right latissimus dorsi muscle actuators, and converting spine flexion into forelimb propulsion motion via the latissimus dorsi muscle. We develop a forward kinematics model that incorporates a three-dimensional muscle path to estimate the design parameters achieving the intended functions in a real robot. Experiments with a quasi-quadruped robot based on the kinematic model show that the proposed design effectively integrates these functions using the latissimus dorsi muscle actuator.
DOI: 10.6084/m9.figshare.29850102.v1
title: Latissimus-dorsi-inspired trunk torsion mechanism for quadruped robot spine design

description: The body structure of living organisms provides a useful insight into sophisticated designs for robots. Incorporating a spine into quadruped robots has become a trend, with implementations of trunk flexion and torsion through the spine aimed at improving locomotion performance. However, the integration of multidirectional spine shape change requires a streamlined design to minimize mechanical complexity. This study introduces a spine structure inspired by the latissimus dorsi muscles that wrap around the trunk of quadruped animals, connecting the dorsal trunk to the forelimbs. The proposed design achieves two functions: generating trunk torsion through differential contraction of left and right latissimus dorsi muscle actuators, and converting spine flexion into forelimb propulsion motion via the latissimus dorsi muscle. We develop a forward kinematics model that incorporates a three-dimensional muscle path to estimate the design parameters achieving the intended functions in a real robot. Experiments with a quasi-quadruped robot based on the kinematic model show that the proposed design effectively integrates these functions using the latissimus dorsi muscle actuator.
DOI: 10.6084/m9.figshare.29591107.v1
title: Singularity lock mechanism based on rolling spool dynamics

description: In robotics, locking mechanisms are crucial in reducing energy consumption of devices such as manipulators. One type of locking mechanism that is widely utilized is the singularity-type locking mechanism. This device is designed such that its degree of freedom decreases at the singular point, allowing it to support large external forces for extended periods with minimal energy input. However, conventional singularity-type locking mechanisms face challenges in designing singular points. In this study, we propose a novel singularity-type locking mechanism based on rolling spool dynamics (called spool paradox). This innovative device applies a curved trajectory to the spool paradox, enabling the arbitrary design of singular points by adjusting the shape of the curve. Through a developed theoretical model and experiments, we demonstrated the capability of our proposed mechanism in locking external forces with minimal energy input. Furthermore, we applied the proposed mechanism to 1-DOF robotic arm and confirmed its motion.
DOI: 10.6084/m9.figshare.29582590
title: Quadrotor pose estimation and real-time control using UWB-based bidirectional measurements of distance and angle of arrival

description: This paper presents a new approach to quadrotor state estimation and control using ultra-wideband (UWB)-based bidirectional ranging and angle of arrival (AoA) measurements. This method offers a significant advantage over traditional motion capture systems or time-of-arrival (ToA) based positioning by requiring only a single, compact UWB anchor, greatly simplifying setup and reducing infrastructure requirements. We address the challenge of significant noise in UWB measurements by integrating them with an inertial measurement unit (IMU) data through an extended Kalman filter (EKF). Our key contributions also include proposing a magnetometer-free yaw estimation method utilizing bidirectional AoA measurements. This method effectively addresses gyroscope drift in indoor environments where magnetometers are unreliable. We also provide theoretical validation of the system's observability, and experimentally demonstrate successful stabilization control of a micro quadrotor using the estimated states. The experimental results show significant reduction in estimation errors compared to raw sensor data. Additionally, we conduct control experiments in rainy environments and confirm that UWB-based control can be effective in a wide range of conditions, including rainy weather. Our approach offers a robust, cost-effective solution for quadrotor navigation and control in GPS-denied environments, particularly indoors, and in rainy conditions, while minimizing setup complexity and hardware requirements.
DOI: 10.6084/m9.figshare.29582590.v1
title: Quadrotor pose estimation and real-time control using UWB-based bidirectional measurements of distance and angle of arrival

description: This paper presents a new approach to quadrotor state estimation and control using ultra-wideband (UWB)-based bidirectional ranging and angle of arrival (AoA) measurements. This method offers a significant advantage over traditional motion capture systems or time-of-arrival (ToA) based positioning by requiring only a single, compact UWB anchor, greatly simplifying setup and reducing infrastructure requirements. We address the challenge of significant noise in UWB measurements by integrating them with an inertial measurement unit (IMU) data through an extended Kalman filter (EKF). Our key contributions also include proposing a magnetometer-free yaw estimation method utilizing bidirectional AoA measurements. This method effectively addresses gyroscope drift in indoor environments where magnetometers are unreliable. We also provide theoretical validation of the system's observability, and experimentally demonstrate successful stabilization control of a micro quadrotor using the estimated states. The experimental results show significant reduction in estimation errors compared to raw sensor data. Additionally, we conduct control experiments in rainy environments and confirm that UWB-based control can be effective in a wide range of conditions, including rainy weather. Our approach offers a robust, cost-effective solution for quadrotor navigation and control in GPS-denied environments, particularly indoors, and in rainy conditions, while minimizing setup complexity and hardware requirements.
DOI: 10.6084/m9.figshare.29591107
title: Singularity lock mechanism based on rolling spool dynamics

description: In robotics, locking mechanisms are crucial in reducing energy consumption of devices such as manipulators. One type of locking mechanism that is widely utilized is the singularity-type locking mechanism. This device is designed such that its degree of freedom decreases at the singular point, allowing it to support large external forces for extended periods with minimal energy input. However, conventional singularity-type locking mechanisms face challenges in designing singular points. In this study, we propose a novel singularity-type locking mechanism based on rolling spool dynamics (called spool paradox). This innovative device applies a curved trajectory to the spool paradox, enabling the arbitrary design of singular points by adjusting the shape of the curve. Through a developed theoretical model and experiments, we demonstrated the capability of our proposed mechanism in locking external forces with minimal energy input. Furthermore, we applied the proposed mechanism to 1-DOF robotic arm and confirmed its motion.
DOI: 10.15468/dl.w9dw4z
title: Occurrence Download

description: A dataset containing 532 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Oryctolagus cuniculus",
 "Country is Italy",
 "HasCoordinate is true"
 ]
}

 The dataset includes 532 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032038-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xnn9fn
title: Occurrence Download

description: A dataset containing 141 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Anas bahamensis",
 "Country is Sweden",
 "HasCoordinate is true"
 ]
}

 The dataset includes 141 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032036-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.9qyw24
title: Occurrence Download

description: A dataset containing 328946 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is Inland water macroinvertebrate occurrences in Flanders, Belgium",
 "Country is Belgium"
 ]
}

 The dataset includes 328946 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032020-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.nxhdem
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is ZFMK Plecoptera collection",
 "Country is Croatia"
 ]
}

 The dataset includes 4 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032035-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.9up7nh
title: Occurrence Download

description: A dataset containing 24 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Oryctolagus cuniculus",
 "Country is Japan",
 "HasCoordinate is true"
 ]
}

 The dataset includes 24 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032039-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.s4hnuw
title: Occurrence Download

description: A dataset containing 10866 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is one of (South Africa, Namibia, Botswana, Zambia, Zimbabwe, Eswatini, Mozambique, Malawi)",
 "DatasetKey is one of (iNaturalist Research-grade Observations, EOD – eBird Observation Dataset, NABU|naturgucker, Observation.org, Nature data from around the World, Birda - Global Observation Dataset, Biodiversity monitoring at Golden Valley Wind Energy Facility, South Africa, from 2022 to 2024., Xeno-canto - Bird sounds from around the world, Hatikka.fi observations)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Polemaetus bellicosus",
 "Year 2015-2025"
 ]
}

 The dataset includes 10866 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032040-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.kpdy37
title: Occurrence Download

description: A dataset containing 5616 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Oryctolagus cuniculus",
 "Country is Ireland",
 "HasCoordinate is true"
 ]
}

 The dataset includes 5616 records from 20 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032037-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.34894/x5usmp
title: Data on students' group project preferences

description: &lt;p&gt;The data files contain information about the preferences of bachelor 1 and 2 students obtained via a discrete choice experiment (12 choice tasks per respondent), demographic characteristics of the sample and population, experiences with free-riding,  attitude towards teamwork, and a measure of individualism/collectivism. Students were presented a different grade weight before each choice task (i.e., 10%, 30%, or 100%). The data was collected from mid-June to mid-July 2021.&lt;/p&gt;
&lt;p&gt;&lt;br&gt;&lt;/p&gt;
&lt;p&gt;Access to the data is subject to the approval of a data sharing agreement due to the personal information contained in the dataset.&lt;/p&gt;
&lt;p&gt;&lt;br&gt;&lt;/p&gt;
&lt;p&gt;A summary of the publication can be found below:&lt;/p&gt;
&lt;p&gt;Reducing free-riding is an important challenge for educators who use group projects. In this study, we measure students’ preferences for group project characteristics and investigate if characteristics that better help to reduce free-riding become more important for students when stakes increase. &lt;/p&gt;
&lt;p&gt;We used a discrete choice experiment based on twelve choice tasks in which students chose between two group projects that differed on five characteristics of which each level had its own effect on free-riding. A different group project grade weight was presented before each choice task to manipulate how much there was at stake for students in the group project. Data of 257 student respondents were used in the analysis.&lt;/p&gt;
&lt;p&gt;Based on random parameter logit model estimates we find that students prefer (in order of importance) assignment based on schedule availability and motivation or self-selection (instead of random assignment), the use of one or two peer process evaluations (instead of zero), a small team size of three or two students (instead of four), a common grade (instead of a divided grade), and a discussion with the course coordinator without a sanction as a method to handle free-riding (instead of member expulsion). Furthermore, we find that the characteristic team formation approach becomes even more important (especially self-selection) when student stakes increase.&lt;/p&gt;
&lt;p&gt;Educators can use our findings to design group projects that better help to reduce free-riding by (1) avoiding random assignment as team formation approach, (2) using (one or two) peer process evaluations, and (3) creating small(er) teams.&lt;/p&gt;
&lt;p&gt;&lt;br&gt;&lt;/p&gt;
&lt;p&gt;&lt;br&gt;&lt;/p&gt;
&lt;p&gt;&lt;br&gt;&lt;/p&gt;
&lt;p&gt;&lt;br&gt;&lt;/p&gt;
description: This entry is a three-file data package totaling 2.4 MB, containing files in .csv, .sav and .xlsx formats.If you use this dataset, please cite: Benning, Tim (2022). Data on students' group project preferences. Erasmus University Rotterdam (EUR). Dataset. https://doi.org/10.25397/eur.20342649
DOI: 10.15468/dl.3ecq6h
title: Occurrence Download

description: A dataset containing 27 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is Herbarium specimens of Société des Sciences Naturelles et Mathématiques de Cherbourg (CHE)",
 "Country is Croatia"
 ]
}

 The dataset includes 27 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032041-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.