cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.sabpg7
title: Occurrence Download

description: A dataset containing 117 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Bougainvillea glabra Choisy",
 "Country is China",
 "Year is greater than or equal to 1900",
 "HasCoordinate is true"
 ]
}

 The dataset includes 117 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082941-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.33ar5x
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Prunus koelzii (Browicz) A.E.Murray"
 ]
}

 The dataset includes 4 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082943-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.kp36j6
title: Occurrence Download

description: A dataset containing 185 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pteronia ciliata Thunb."
 ]
}

 The dataset includes 185 records from 22 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082944-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.uevavd
title: Occurrence Download

description: A dataset containing 59 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pongamiopsis viguieri Du Puy & Labat"
 ]
}

 The dataset includes 59 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082945-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.2mm52r
title: Occurrence Download

description: A dataset containing 3 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pseudostellaria helanshanensis W.Z.Di & Y.Ren"
 ]
}

 The dataset includes 3 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082946-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zeyh22
title: Occurrence Download

description: A dataset containing 19 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Primula barbicalyx C.H.Wright"
 ]
}

 The dataset includes 19 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082947-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.g7xef6
title: Occurrence Download

description: A dataset containing 15 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Psychotria moramangensis (Bremek.) Razafim. & B.Bremer"
 ]
}

 The dataset includes 15 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082948-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.v68ad8
title: Occurrence Download

description: A dataset containing 353 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Prunus korshinskyi Hand.-Mazz."
 ]
}

 The dataset includes 353 records from 17 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082949-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hnrhpr
title: Occurrence Download

description: A dataset containing 40 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Bougainvillea spectabilis Willd.",
 "Country is China",
 "Year is greater than or equal to 1900",
 "HasCoordinate is true"
 ]
}

 The dataset includes 40 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082950-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48597/u8y3-cbpa
title: Inorganics in precipitation at Donon

description: Measurement of Inorganics in precipitation at Donon
DOI: 10.48597/x3em-ncuj
title: Inorganics in precipitation at La Tardière

description: Measurement of Inorganics in precipitation at La Tardière
DOI: 10.48597/3aa7-6r82
title: Measurement of Inorganics in precipitation at La Tardière

description: Measurement of Inorganics in precipitation at La Tardière
DOI: 10.48597/3r7b-cbzd
title: Measurement of Inorganics in precipitation at Peyrusse Vieille

description: Measurement of Inorganics in precipitation at Peyrusse Vieille
DOI: 10.48597/2sp8-r4s5
title: Measurement of Inorganics in precipitation at Le Casset

description: Measurement of Inorganics in precipitation at Le Casset
DOI: 10.48597/7jm2-fyq8
title: Measurement of Inorganics in precipitation at Montandon

description: Measurement of Inorganics in precipitation at Montandon
DOI: 10.48597/atyx-km8r
title: Measurement of Inorganics in precipitation at La Coulonche

description: Measurement of Inorganics in precipitation at La Coulonche
DOI: 10.48597/dfkt-txa9
title: Measurement of Inorganics in precipitation at Revin

description: Measurement of Inorganics in precipitation at Revin
DOI: 10.48597/nm6p-f9gz
title: Measurement of Inorganics in precipitation at Morvan

description: Measurement of Inorganics in precipitation at Morvan
DOI: 10.48597/py27-3vcu
title: Measurement of Inorganics in precipitation at Donon

description: Measurement of Inorganics in precipitation at Donon
DOI: 10.48597/za44-rzn9
title: Measurement of Inorganics in precipitation at Montfranc

description: Measurement of Inorganics in precipitation at Montfranc
DOI: 10.48597/76b2-zcjb
title: Measurement of Inorganics in precipitation at Donon

description: Measurement of Inorganics in precipitation at Donon
DOI: 10.15468/dl.rehcxv
title: Occurrence Download

description: A dataset containing 113 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pteronia cinerea L.fil."
 ]
}

 The dataset includes 113 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082951-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48597/64f6-3aca
title: Measurement of Inorganics in precipitation at La Tardière

description: Measurement of Inorganics in precipitation at La Tardière
DOI: 10.48597/8n47-savy
title: Measurement of Inorganics in precipitation at La Coulonche

description: Measurement of Inorganics in precipitation at La Coulonche
DOI: 10.48597/pe82-eaqv
title: Measurement of Inorganics in precipitation at La Tardière

description: Measurement of Inorganics in precipitation at La Tardière
DOI: 10.48597/8nat-y9bj
title: Measurement of Inorganics in precipitation at Le Casset

description: Measurement of Inorganics in precipitation at Le Casset
DOI: 10.48597/b6df-k3kh
title: Measurement of Inorganics in precipitation at Revin

description: Measurement of Inorganics in precipitation at Revin
DOI: 10.48597/bjyd-e39k
title: Measurement of Inorganics in precipitation at Montandon

description: Measurement of Inorganics in precipitation at Montandon
DOI: 10.15468/dl.5uwmu4
title: Occurrence Download

description: A dataset containing 828 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pseudostellaria heterantha (Maxim.) Pax"
 ]
}

 The dataset includes 828 records from 75 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082952-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.48597/euv3-6ksa
title: Measurement of Inorganics in precipitation at Donon

description: Measurement of Inorganics in precipitation at Donon
DOI: 10.48597/hkj2-mn24
title: Measurement of Inorganics in precipitation at Peyrusse Vieille

description: Measurement of Inorganics in precipitation at Peyrusse Vieille
DOI: 10.48597/qwxq-jdkd
title: Measurement of Inorganics in precipitation at Morvan

description: Measurement of Inorganics in precipitation at Morvan
DOI: 10.48597/xaht-svc4
title: Measurement of Inorganics in precipitation at Montfranc

description: Measurement of Inorganics in precipitation at Montfranc
DOI: 10.15468/dl.3nefzv
title: Occurrence Download

description: A dataset containing 1886 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pontechium maculatum (L.) Böhle & Hilger"
 ]
}

 The dataset includes 1886 records from 88 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0082953-240321170329656/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.14326407
title: Protection against ultraviolet radiation due to sunglasses

description: Abstract When purchasing sunglasses it is important to ensure that they offer effective protection against ultraviolet (UV) radiation. Although invisible, this type of radiation can cause serious damage to the retina. The use of lenses without adequate UV protection can prove to be harmful, since the decrease in visible light leads to an increase in the pupil of the eye. In this work, we propose the construction of a device to test the reduction in the light intensity introduced by colored sunglasses lenses. The system is based on color LEDs and a photosensor with integrated amplification.
DOI: 10.6084/m9.figshare.14326407.v1
title: Protection against ultraviolet radiation due to sunglasses

description: Abstract When purchasing sunglasses it is important to ensure that they offer effective protection against ultraviolet (UV) radiation. Although invisible, this type of radiation can cause serious damage to the retina. The use of lenses without adequate UV protection can prove to be harmful, since the decrease in visible light leads to an increase in the pupil of the eye. In this work, we propose the construction of a device to test the reduction in the light intensity introduced by colored sunglasses lenses. The system is based on color LEDs and a photosensor with integrated amplification.
DOI: 10.6084/m9.figshare.14326408.v1
title: Experimental Physics with Arduino: waves in a tensioned string

description: Abstract In this work we have developed an apparatus for studying the sound emitted by vibrating strings using the Arduino platform. Steel and nylon strings were attached to a device that made it possible to apply a strain to the strings and investigate the relationship between this force and the frequency of the sound emitted using, together with the Arduino, respectively, a force sensor based on the HX711 and an audio sensor based on the MAX4466 circuit. The audio signal has obtained from the analog-digital (A/D) conversion of the electrical voltage at the output pin of the sound sensor. To obtain a more reliable signal, we implemented programming strategies that allowed us to increase the A/D conversion speed and reduce the impact of Arduino-PC communication latency. After spectral analysis of the audio signals, we found a good agreement between theoretical predictions and the results obtained experimentally showing, thus, that the adopted approach can be used both in the development of experimental classes as well as in the manufacture of instrumentation for research in the acoustics.
DOI: 10.6084/m9.figshare.14326408
title: Experimental Physics with Arduino: waves in a tensioned string

description: Abstract In this work we have developed an apparatus for studying the sound emitted by vibrating strings using the Arduino platform. Steel and nylon strings were attached to a device that made it possible to apply a strain to the strings and investigate the relationship between this force and the frequency of the sound emitted using, together with the Arduino, respectively, a force sensor based on the HX711 and an audio sensor based on the MAX4466 circuit. The audio signal has obtained from the analog-digital (A/D) conversion of the electrical voltage at the output pin of the sound sensor. To obtain a more reliable signal, we implemented programming strategies that allowed us to increase the A/D conversion speed and reduce the impact of Arduino-PC communication latency. After spectral analysis of the audio signals, we found a good agreement between theoretical predictions and the results obtained experimentally showing, thus, that the adopted approach can be used both in the development of experimental classes as well as in the manufacture of instrumentation for research in the acoustics.
DOI: 10.15139/s3/36mvpn
title: Monmouth University National Poll, Number 216

description: This survey was conducted using a national sample and addresses President Donald Trump's job approval, the coronavirus outbreak, the 2020 presidential election, and romantic relationship satisfaction.
DOI: 10.6084/m9.figshare.14326409
title: Introducing the concept of oscillator strength in the initial quantum mechanics courses

description: Abstract In this paper, a sum rule for electron transitions between atomic states, proposed by Thomas, Reiche and Kuhn (TRK), presented only, and at most, in advanced courses, is examined in a didactic way for the case of transitions between states of electrons in two familiar systems, the one-dimensional finite and infinite potential wells, traditionally studied in introductory disciplines of quantum mechanics in undergraduate physics courses.
DOI: 10.6084/m9.figshare.14326409.v1
title: Introducing the concept of oscillator strength in the initial quantum mechanics courses

description: Abstract In this paper, a sum rule for electron transitions between atomic states, proposed by Thomas, Reiche and Kuhn (TRK), presented only, and at most, in advanced courses, is examined in a didactic way for the case of transitions between states of electrons in two familiar systems, the one-dimensional finite and infinite potential wells, traditionally studied in introductory disciplines of quantum mechanics in undergraduate physics courses.
DOI: 10.6084/m9.figshare.14326411
title: Interdisciplinary study of the synthesis of the origin of the chemical elements and their role in the formation and structure of the Earth

description: Abstract We discuss in this work the issue of chemical element origin in the stars and the Big Bang, with the aim of linking the subject smoothly with the formation of the Solar System and the structure of the Earth in an updated and pedagogical fashion. A few cases in which these subjects are present but disjoint in different degrees are shown, and a suggestion for its introduction in a set of classes made, as well as issues in Teacher's Education and existing Curricula revisited. The goal is to break the boundaries of separated presentation and to emphasize the unity and coherence of sciences.
DOI: 10.6084/m9.figshare.14326411.v1
title: Interdisciplinary study of the synthesis of the origin of the chemical elements and their role in the formation and structure of the Earth

description: Abstract We discuss in this work the issue of chemical element origin in the stars and the Big Bang, with the aim of linking the subject smoothly with the formation of the Solar System and the structure of the Earth in an updated and pedagogical fashion. A few cases in which these subjects are present but disjoint in different degrees are shown, and a suggestion for its introduction in a set of classes made, as well as issues in Teacher's Education and existing Curricula revisited. The goal is to break the boundaries of separated presentation and to emphasize the unity and coherence of sciences.
DOI: 10.6084/m9.figshare.14326412
title: Different averages and its finding in some physical scenarios

description: Abstract This note discusses physical questions described –almost as serendipity facts- with different types of mean values. We describe these different types of means and its contextualization in the diverse appearing scenarios. Emphasis is highlighted on its didactical use.
DOI: 10.6084/m9.figshare.14326412.v1
title: Different averages and its finding in some physical scenarios

description: Abstract This note discusses physical questions described –almost as serendipity facts- with different types of mean values. We describe these different types of means and its contextualization in the diverse appearing scenarios. Emphasis is highlighted on its didactical use.
DOI: 10.6084/m9.figshare.14326414.v1
title: Deduction of the Tight-Binding Hamiltonian Matrix using the discretization of the Schrödinger Equation

description: Abstract In this work, we set up a Hamiltonian matrix for a non-interacting two-dimensional electron gas. These systems can be formed at the heterostructures interface of GaAs-AlGaAs and, in the presence of confinement potentials, be used as quantum transistors. Starting from the Schrödinger equation in the approximation of the effective mass, we deduce the Hamiltonians 1D and 2D on the basis of Tight-Binding sites. These Hamiltonians were obtained through the procedure of discretization of the Schrödinger equation. For the one-dimensional case, the result found was the well-known tridiagonal matrix and, for the two-dimensional case, a block tridiagonal matrix. The discretization performed allowed the deduction of the values of the site and hopping energies of the studied system. These results demonstrate the direct link between the Schrödinger equation and the Tight-Binding method, and such results are very useful in the realization of numerical methods, which are not addressed in the basic literature of Solid State Physics.
DOI: 10.6084/m9.figshare.14326414
title: Deduction of the Tight-Binding Hamiltonian Matrix using the discretization of the Schrödinger Equation

description: Abstract In this work, we set up a Hamiltonian matrix for a non-interacting two-dimensional electron gas. These systems can be formed at the heterostructures interface of GaAs-AlGaAs and, in the presence of confinement potentials, be used as quantum transistors. Starting from the Schrödinger equation in the approximation of the effective mass, we deduce the Hamiltonians 1D and 2D on the basis of Tight-Binding sites. These Hamiltonians were obtained through the procedure of discretization of the Schrödinger equation. For the one-dimensional case, the result found was the well-known tridiagonal matrix and, for the two-dimensional case, a block tridiagonal matrix. The discretization performed allowed the deduction of the values of the site and hopping energies of the studied system. These results demonstrate the direct link between the Schrödinger equation and the Tight-Binding method, and such results are very useful in the realization of numerical methods, which are not addressed in the basic literature of Solid State Physics.
DOI: 10.6084/m9.figshare.14326417
title: Granger causality in the frequency domain: derivation and applications

description: Abstract Physicists are starting to work in areas where noisy signal analysis is required. In these fields, such as Economics, Neuroscience, and Physics, the notion of causality should be interpreted as a statistical measure. We introduce to the lay reader the Granger causality between two time series and illustrate ways of calculating it: a signal X “Granger-causes” a signal Y if the observation of the past of X increases the predictability of the future of Y when compared to the same prediction done with the past of Y alone. In other words, for Granger causality between two quantities it suffices that information extracted from the past of one of them improves the forecast of the future of the other, even in the absence of any physical mechanism of interaction. We present derivations of the Granger causality measure in the time and frequency domains and give numerical examples using a non-parametric estimation method in the frequency domain. Parametric methods are addressed in the Appendix. We discuss the limitations and applications of this method and other alternatives to measure causality.
DOI: 10.6084/m9.figshare.14326417.v1
title: Granger causality in the frequency domain: derivation and applications

description: Abstract Physicists are starting to work in areas where noisy signal analysis is required. In these fields, such as Economics, Neuroscience, and Physics, the notion of causality should be interpreted as a statistical measure. We introduce to the lay reader the Granger causality between two time series and illustrate ways of calculating it: a signal X “Granger-causes” a signal Y if the observation of the past of X increases the predictability of the future of Y when compared to the same prediction done with the past of Y alone. In other words, for Granger causality between two quantities it suffices that information extracted from the past of one of them improves the forecast of the future of the other, even in the absence of any physical mechanism of interaction. We present derivations of the Granger causality measure in the time and frequency domains and give numerical examples using a non-parametric estimation method in the frequency domain. Parametric methods are addressed in the Appendix. We discuss the limitations and applications of this method and other alternatives to measure causality.
DOI: 10.6084/m9.figshare.14326418
title: An introduction to the time evolution of model universes

description: Abstract In this paper we describe the evolution of the Universe in terms of the Friedmann equation, which takes into account of the composition and geometry of the Universe. The dependence of the solution on the geometry and composition for different combinations of the basic constituents are discussed. The distinct behaviours for the temporal evolution of the Universe are determined and the scenario predicted by the Standard Cosmology is presented.
DOI: 10.6084/m9.figshare.14326418.v1
title: An introduction to the time evolution of model universes

description: Abstract In this paper we describe the evolution of the Universe in terms of the Friedmann equation, which takes into account of the composition and geometry of the Universe. The dependence of the solution on the geometry and composition for different combinations of the basic constituents are discussed. The distinct behaviours for the temporal evolution of the Universe are determined and the scenario predicted by the Standard Cosmology is presented.