cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2310319
title: Adsorbates on Cu relevant for methanol synthesis

description: Cu/ZnO/Al2O3 catalysts are used for the synthesis of methanol from syngas at 220–300 ºC and 5–10 MPa. Cu is used because it is the most effective catalyst for the methanol synthesis due to its high activity and excellent stability under the reaction conditions. At low temperature the reaction proceeds by hydrogenation of CO2 to formate and then with addition of hydrogen to methoxy and finally to methanol. In this proposal we wish to investigate physisorbed methanol and chemisorbed methoxy on Raney Cu and the commercial catalyst. Comparison of the two sets of results will allow a determination as to where methoxide is located on the commercial material: whether it is just on the copper or is also present on the other components. This will directly feed into DFT studies of the reaction pathway that are being carried out in parallel at Lincoln.
DOI: 10.5286/isis.e.rb2310319-1
title: Adsorbates on Cu relevant for methanol synthesis

description: Cu/ZnO/Al2O3 catalysts are used for the synthesis of methanol from syngas at 220–300 ºC and 5–10 MPa. Cu is used because it is the most effective catalyst for the methanol synthesis due to its high activity and excellent stability under the reaction conditions. At low temperature the reaction proceeds by hydrogenation of CO2 to formate and then with addition of hydrogen to methoxy and finally to methanol. In this proposal we wish to investigate physisorbed methanol and chemisorbed methoxy on Raney Cu and the commercial catalyst. Comparison of the two sets of results will allow a determination as to where methoxide is located on the commercial material: whether it is just on the copper or is also present on the other components. This will directly feed into DFT studies of the reaction pathway that are being carried out in parallel at Lincoln.
DOI: 10.3535/7pd-p03-954
title: Castroviejoa frigida (Labill.) Galbany et al.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/9p9-c96-nt0
title: Arundinella hirta (Thunb.) Tanaka

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310640
title: Field-Dependent Magnetic Ordering Dome and Quantum Spin Fluctuations in the Natural Mineral Henmilite, Ca2Cu(OH)4[B(OH)4]2

description: The ideal candidates for quantum fluctuations study are low-spin low-dimensional materials, such as spin ½ chains. Some theoretically predicted spin arrangements exist only in natural mineral specimens, such as the maple leaf lattice in spangolite or the spin ladder in henmilite. The latter one is magnetically ordering at 0.2 K, with a significant broad magnetic hump in specific heat stretching well above the order transition – indicative of the build-up of magnetic correlations. Unusually for an antiferromagnet, the application of field enhances transition temperature up to 3 T, beyond which decreases towards the quantum critical point. We plan to use muons as the most appropriate probe for studying both the ground-state and the spin dynamics in zero-field and applied fields in dilution temperatures, and HiFi spectrometer is the best choice for such a study.
DOI: 10.5286/isis.e.rb2310640-1
title: Field-Dependent Magnetic Ordering Dome and Quantum Spin Fluctuations in the Natural Mineral Henmilite, Ca2Cu(OH)4[B(OH)4]2

description: The ideal candidates for quantum fluctuations study are low-spin low-dimensional materials, such as spin ½ chains. Some theoretically predicted spin arrangements exist only in natural mineral specimens, such as the maple leaf lattice in spangolite or the spin ladder in henmilite. The latter one is magnetically ordering at 0.2 K, with a significant broad magnetic hump in specific heat stretching well above the order transition – indicative of the build-up of magnetic correlations. Unusually for an antiferromagnet, the application of field enhances transition temperature up to 3 T, beyond which decreases towards the quantum critical point. We plan to use muons as the most appropriate probe for studying both the ground-state and the spin dynamics in zero-field and applied fields in dilution temperatures, and HiFi spectrometer is the best choice for such a study.
DOI: 10.5286/isis.e.rb2410063-1
title: An Asymmetric Protein-Containing Gram-Negative bacterial Outer membrane Model

description: We have been developing advanced planar models of the Gram negative bacterial outer membrane as precise and accurate structural assay systems for antibiotic testing by neutron reflectometry. Here we wish to advance the accuracy and utility of these systems by incorporating integral membrane proteins into the models in the form of porins and depositing the asymmetric membranes through a two stage directed in-situ self-assembly methodology, removing the need for time consuming layer-by-layer deposition. Porin : phospholipid vesicles will be ruptured onto silicon surfaces to produce protein-phospholipid bilayers. Lipopolysaccharides will then be introduced into the bulk media which will exchange the outer leaflet lipids forming a porin:phospholipid:lipopolysaccharide membrane. We intend to control the asymmetry of this construct through bridging the inner leaflet phospholipids to the SiO2 layer based on previous observations by us. Finally we will test the stability of the sample under serum solution and temperature conditions. If successful this study will pave the way for a new level of accuracy in interfacial biomimetics using a much simplified fabrication route. This is a resubmission taking into account the panels previous comments by providing preliminary data in the proposal.
DOI: 10.34816/ifao.archives.232678
title: SAQQARA_pv_2004_00717

description: Référence : pv_2004_00717<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/flk-t07-whv
title: Myosurus minimus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/m3k-a2m-fpn
title: Cymbopogon goeringii (Steud.) A.Camus

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2320067-1
title: Magnetic Ordering of spin-orbital coupled Ir-Ir dimers in the Quantum Magnets: Ba3XIr2O9 X = Y, Sc

description: Studies of iridium-based compounds are at the forefront of condensed matter physics research in recent years. In these materials the electronic configurations are driven by strong spin-orbit coupling (SOC). We are currently investigating the spin frustration in of Ba3XIr2O9 X = Y or Sc (with Ir4.5+), using various experimental techniques, where one lone electron is shared over a structural Ir dimer, and a small magnetic moment order occurs for frustrated antiferromagnetic interactions in the presence of strong SOC. Our zero-field muon spin rotation study has revealed evidence of a small magnetic moment long range magnetic ordering below 4.5 K in Ba3YIr2O9, which disorder free. The site disorder between Ir and Sc sites increases the magnetic ordering temperature to 9 K in Ba3ScIr2O9, both in agreement with the heat capacity. The study of the magnetic ordering in these materials and related Ba3CdIr2O9 are highly limited by their unknown magnetic structure. Thus the proposed neutron diffraction study is to determine the magnetic structure of Ba3XIr2O (T=Y and Sc), which will help to understand the role of the lone electron shared across the Ir dimer, on a hexagonal lattice, in the presence of strong SOC.
DOI: 10.5286/isis.e.rb2390083-1
title: Understanding the magnetic and nonmagnetic ground state through CEF investigations on two samples of TbTa7O19
DOI: 10.5286/isis.e.rb2410063
title: An Asymmetric Protein-Containing Gram-Negative bacterial Outer membrane Model

description: We have been developing advanced planar models of the Gram negative bacterial outer membrane as precise and accurate structural assay systems for antibiotic testing by neutron reflectometry. Here we wish to advance the accuracy and utility of these systems by incorporating integral membrane proteins into the models in the form of porins and depositing the asymmetric membranes through a two stage directed in-situ self-assembly methodology, removing the need for time consuming layer-by-layer deposition. Porin : phospholipid vesicles will be ruptured onto silicon surfaces to produce protein-phospholipid bilayers. Lipopolysaccharides will then be introduced into the bulk media which will exchange the outer leaflet lipids forming a porin:phospholipid:lipopolysaccharide membrane. We intend to control the asymmetry of this construct through bridging the inner leaflet phospholipids to the SiO2 layer based on previous observations by us. Finally we will test the stability of the sample under serum solution and temperature conditions. If successful this study will pave the way for a new level of accuracy in interfacial biomimetics using a much simplified fabrication route. This is a resubmission taking into account the panels previous comments by providing preliminary data in the proposal.
DOI: 10.3535/hps-pm9-0fj
title: Helleborus dumetorum Waldst. & Kit. ex Willd.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2320067
title: Magnetic Ordering of spin-orbital coupled Ir-Ir dimers in the Quantum Magnets: Ba3XIr2O9 X = Y, Sc

description: Studies of iridium-based compounds are at the forefront of condensed matter physics research in recent years. In these materials the electronic configurations are driven by strong spin-orbit coupling (SOC). We are currently investigating the spin frustration in of Ba3XIr2O9 X = Y or Sc (with Ir4.5+), using various experimental techniques, where one lone electron is shared over a structural Ir dimer, and a small magnetic moment order occurs for frustrated antiferromagnetic interactions in the presence of strong SOC. Our zero-field muon spin rotation study has revealed evidence of a small magnetic moment long range magnetic ordering below 4.5 K in Ba3YIr2O9, which disorder free. The site disorder between Ir and Sc sites increases the magnetic ordering temperature to 9 K in Ba3ScIr2O9, both in agreement with the heat capacity. The study of the magnetic ordering in these materials and related Ba3CdIr2O9 are highly limited by their unknown magnetic structure. Thus the proposed neutron diffraction study is to determine the magnetic structure of Ba3XIr2O (T=Y and Sc), which will help to understand the role of the lone electron shared across the Ir dimer, on a hexagonal lattice, in the presence of strong SOC.
DOI: 10.5286/isis.e.rb2410156-1
title: The lipid-based nanostructured drug carriers designed for the Docetaxel delivery

description: Cancer is one of the leading causes of mortality worldwide, accounting for one in six deaths. In Brazil, non-melanoma skin cancer is the most prevalent, responsible for approximately 185,000 new cases each year. The main antineoplastic agents, such as docetaxel (DTX) have limitations such as low water solubility, tissue toxicity and rapid degradation. Such challenges can be overcome with the use of nanocarriers, as in the case of nanostructured lipid carriers (NLC). This compound is a promising contribution by nanotechnology in pharmaceutical sciences. The applicability of NLC in drug delivery allows increasing the bioavailability of pharmacological active compounds [3,4]. We developed a nanostructured hybrid system composed of NLC incorporating docetaxel (DTX, 0.5%) adsorbed on a biopolymeric matrix of xanthan-chitosan gum (3:1%). Through this formulation, an innovative drug delivery system for the treatment of skin cancer is proposed to release DTX. Our objective in this proposal is to study the structural organization of lipid-based drug delivery systems: NLC composed of Myristyl Myristate (SL) and Miglyol 812 (LL) in two different concentrations containing DTX and the surfactant Pluronic F58, in addition to Copaiba Oil. To this end, we are submitting this proposal to measure our samples at SANS2d beamtime, which will be very important for characterizing our drug delivery system.
DOI: 10.34816/ifao.archives.232679
title: SAQQARA_pv_2004_00718

description: Référence : pv_2004_00718<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/gfm-nxk-twf
title: Themeda triandra Forssk.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/p0l-tmn-mhl
title: Fagonia L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220149
title: Elucidate the nature of additional phase transition in the charge density wave phase of kagome superconductor CsV3Sb5
DOI: 10.5286/isis.e.rb2220149-1
title: Elucidate the nature of additional phase transition in the charge density wave phase of kagome superconductor CsV3Sb5
DOI: 10.5286/isis.e.rb2410156
title: The lipid-based nanostructured drug carriers designed for the Docetaxel delivery

description: Cancer is one of the leading causes of mortality worldwide, accounting for one in six deaths. In Brazil, non-melanoma skin cancer is the most prevalent, responsible for approximately 185,000 new cases each year. The main antineoplastic agents, such as docetaxel (DTX) have limitations such as low water solubility, tissue toxicity and rapid degradation. Such challenges can be overcome with the use of nanocarriers, as in the case of nanostructured lipid carriers (NLC). This compound is a promising contribution by nanotechnology in pharmaceutical sciences. The applicability of NLC in drug delivery allows increasing the bioavailability of pharmacological active compounds [3,4]. We developed a nanostructured hybrid system composed of NLC incorporating docetaxel (DTX, 0.5%) adsorbed on a biopolymeric matrix of xanthan-chitosan gum (3:1%). Through this formulation, an innovative drug delivery system for the treatment of skin cancer is proposed to release DTX. Our objective in this proposal is to study the structural organization of lipid-based drug delivery systems: NLC composed of Myristyl Myristate (SL) and Miglyol 812 (LL) in two different concentrations containing DTX and the surfactant Pluronic F58, in addition to Copaiba Oil. To this end, we are submitting this proposal to measure our samples at SANS2d beamtime, which will be very important for characterizing our drug delivery system.
DOI: 10.3535/pbg-9wt-z52
title: Isopyrum thalictroides L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ynk-afm-pym
title: Leersia Sw.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220438-1
title: Probing the dynamics of cresol isomers within Brønsted acidic zeolites for biomass conversion
DOI: 10.5286/isis.e.rb2368012
title: Microscopic Investigation of the ground state of quantum spin liquid candidate Sr3CuTa2O9
DOI: 10.5286/isis.e.rb2368012-1
title: Microscopic Investigation of the ground state of quantum spin liquid candidate Sr3CuTa2O9
DOI: 10.34816/ifao.archives.232680
title: SAQQARA_pv_2004_00719

description: Référence : pv_2004_00719<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/ajr-vkn-b7x
title: Stellaria graminea L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220438
title: Probing the dynamics of cresol isomers within Brønsted acidic zeolites for biomass conversion
DOI: 10.5286/isis.e.rb2220481
title: Measurement of the neutron up-scattering effect in the resonances of uranium in UO2 as a function of temperature up to 1700 K
DOI: 10.5286/isis.e.rb2220481-3
title: Measurement of the neutron up-scattering effect in the resonances of uranium in UO2 as a function of temperature up to 1700 K
DOI: 10.15468/dl.tuch7z
title: Occurrence Download

description: A dataset containing 239 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Bidens frondosa L.",
 "Country is Czechia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 239 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0109255-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/cv6-e8b-71j
title: Pseudopogonatherum speciosum (Debeaux) Ohwi

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/f54-b08-r8q
title: Asteraceae Dumort.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2320228
title: Correlating SANS and SESANS to study membrane and morphology changes in Bacteria (continuation)

description: Bacteria and the infections they cause are a huge problem due to the advent of antimicrobial resistance (AMR). To kill bacteria with greater efficacy and limit the rate at which AMR develops we must better understand the nanostructures bacteria have developed to protect themselves. To do this requires us to study the bacteria outer cell walls that provide them with such amazing mechanical integrity. We have recently shown that we can measure changes in the size and volume of bacteria using SESANS as well as changes in the bacterial celll wall nanostructure using SANS. In this new proposal we plan to probe the kinetics of this process along the bacterial growth curve and using different exposure times to the antibiotic methicllin.
DOI: 10.5286/isis.e.rb2320228-1
title: Correlating SANS and SESANS to study membrane and morphology changes in Bacteria (continuation)

description: Bacteria and the infections they cause are a huge problem due to the advent of antimicrobial resistance (AMR). To kill bacteria with greater efficacy and limit the rate at which AMR develops we must better understand the nanostructures bacteria have developed to protect themselves. To do this requires us to study the bacteria outer cell walls that provide them with such amazing mechanical integrity. We have recently shown that we can measure changes in the size and volume of bacteria using SESANS as well as changes in the bacterial celll wall nanostructure using SANS. In this new proposal we plan to probe the kinetics of this process along the bacterial growth curve and using different exposure times to the antibiotic methicllin.
DOI: 10.34816/ifao.archives.232681
title: SAQQARA_pv_2004_00720

description: Référence : pv_2004_00720<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/pev-gy0-6k0
title: Schoenus nigricans L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310615-1
title: Studying nonlinear viscoelastic properties of soft condensed matter with time-of-flight based RheoSANS measurements

description: Soft condensed matter is of great interest for fundamental science as well as with respect to applications in medical engineering, for example as lubrication or as responsive biomaterials, to name just a few. This is enabled by the tuneability of viscoelastic properties of polymeric materials. We are interested in the linear triblock copolymer Pluronic F127, which self-assembles into micelles at specific temperatures and mass concentration when diluted in water. Of particular interest is it to identify and characterize non-linearities in stress-strain relationship of the materials. We aim to investigate this domain by using the available rheometer at ISIS to apply Large Amplitude Oscillatory Shear (LAOS) to our sample. One cycle of shear application will be in the range of 1 Hz, which is an interesting time scale to investigate crystallization processes and subsequently non-linear effects like shear bands, which we propose to investigate with an experiment at SANS2D. Neutron data will be taken in event mode, which enables us to link every detected neutron to the stress-strain curve of the rheometer by a time-of-flight measurement. This method makes later analysis and potential rebinning of the data possible. Our proposal suggests to make measurements at different shear amplitudes and frequencies as well in radial and tangential orientation and for several points in the sample to obtain a spatial resolution. Overall, we ask for 4 days of beam time at SANS2D.
DOI: 10.5286/isis.e.rb2410694
title: Determining the structure of confined supercapacitor electrolytes

description: As electrochemical energy storage devices, electrical double layer (EDL) supercapacitors complement batteries since they are capable of substantially higher power densities. Energy in EDL supercapacitors is stored in the “double layer” of adsorbed ions on high surface area charged electrodes. However, despite its immense importance, the structure of EDL has never been measured in atomistic detail due to a lack of suitable methods. As a result, realistic predictive models for supercapacitors are notoriously absent. To address this, and as a first step towards developing operando studies of supercapacitor electrolyte structure, we will use NIMROD to study the structure of two supercapacitor electrolytes in the bulk and confined in a mesoporous carbon. We will use the power of neutrons to an utilise isotopic H/D substitution, and complimentary data refined simulation analysis, to reveal, in atomistic detail, how the structure of these important liquids changes in the presence of carbon electrode surfaces.
DOI: 10.5286/isis.e.rb2410694-1
title: Determining the structure of confined supercapacitor electrolytes

description: As electrochemical energy storage devices, electrical double layer (EDL) supercapacitors complement batteries since they are capable of substantially higher power densities. Energy in EDL supercapacitors is stored in the “double layer” of adsorbed ions on high surface area charged electrodes. However, despite its immense importance, the structure of EDL has never been measured in atomistic detail due to a lack of suitable methods. As a result, realistic predictive models for supercapacitors are notoriously absent. To address this, and as a first step towards developing operando studies of supercapacitor electrolyte structure, we will use NIMROD to study the structure of two supercapacitor electrolytes in the bulk and confined in a mesoporous carbon. We will use the power of neutrons to an utilise isotopic H/D substitution, and complimentary data refined simulation analysis, to reveal, in atomistic detail, how the structure of these important liquids changes in the presence of carbon electrode surfaces.
DOI: 10.3535/4hz-tkh-3v6
title: Orchis sambucina L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/xr4-w9v-vjq
title: Orchis sambucina L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.