cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2210317
title: Understanding the Unusually Enhanced Moment in Coupled Helimagnet-Ferromagnetic Multilayer Hybrid Skyrmion Systems

description: Searching for new types of magnetic skyrmions with reduced dimensions and enhanced stability is a key task on the road to topological information technology. Using resonant elastic x-ray scattering, we have recently observed a new type of hybrid composite skyrmion that exists in coupled helimagnet-magnetic multilayer systems. In fact, the well-established long-range order of the magnetic skyrmion crystal can be imprinted onto the usually unordered skyrmion system in the heterostructure. We have carried out anomalous Hall measurements on the metallic Co/Pt multilayers (helimagnetic Cu2OSeO3 is electrically insulating) and found a peculiar behaviour, which is accompanied by a dramatic change of the magnetic moment of Co (measured by x-ray magnetic circular dichroism). In order to gain some understanding of these interfacial effects, we propose to carry out PNR measurements.
DOI: 10.5286/isis.e.rb2210317-1
title: Understanding the Unusually Enhanced Moment in Coupled Helimagnet-Ferromagnetic Multilayer Hybrid Skyrmion Systems

description: Searching for new types of magnetic skyrmions with reduced dimensions and enhanced stability is a key task on the road to topological information technology. Using resonant elastic x-ray scattering, we have recently observed a new type of hybrid composite skyrmion that exists in coupled helimagnet-magnetic multilayer systems. In fact, the well-established long-range order of the magnetic skyrmion crystal can be imprinted onto the usually unordered skyrmion system in the heterostructure. We have carried out anomalous Hall measurements on the metallic Co/Pt multilayers (helimagnetic Cu2OSeO3 is electrically insulating) and found a peculiar behaviour, which is accompanied by a dramatic change of the magnetic moment of Co (measured by x-ray magnetic circular dichroism). In order to gain some understanding of these interfacial effects, we propose to carry out PNR measurements.
DOI: 10.3535/ajq-vq4-w2e
title: Glyceria notata Chevall.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/f81-rse-fkk
title: Campanula cochleariifolia Lam.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2210338
title: Adsorption to Biomimetic Hair Surfaces

description: The proposal supports the PhD project “Adhesion and interaction with hair biomolecules – a cosmetic perspective”. The aim is to understand how surfactants and polymers from shampoo formulations interact with biomimetic model hair surfaces. The thiol-based surfaces on gold are designed to reflect the hair under different conditions (native or damaged fibres), and include the antepenultimate methyl branch characteristic of interfacial hair lipids. Understanding the nature of the hierarchical adsorption from formulations and the role of the surface is crucial for developing sustainable cosmetic formulations. Neutron reflectometry is thus a key technique which is combined with QCM-D and modelling. Selective deuteration of surfactants and water provides increased contrast between the different ad-layers and reveals how the surface and bulk (rinsing) properties affect adsorbed film state.
DOI: 10.5286/isis.e.rb2210338-1
title: Adsorption to Biomimetic Hair Surfaces

description: The proposal supports the PhD project “Adhesion and interaction with hair biomolecules – a cosmetic perspective”. The aim is to understand how surfactants and polymers from shampoo formulations interact with biomimetic model hair surfaces. The thiol-based surfaces on gold are designed to reflect the hair under different conditions (native or damaged fibres), and include the antepenultimate methyl branch characteristic of interfacial hair lipids. Understanding the nature of the hierarchical adsorption from formulations and the role of the surface is crucial for developing sustainable cosmetic formulations. Neutron reflectometry is thus a key technique which is combined with QCM-D and modelling. Selective deuteration of surfactants and water provides increased contrast between the different ad-layers and reveals how the surface and bulk (rinsing) properties affect adsorbed film state.
DOI: 10.5286/isis.e.rb2210379-1
title: How N-acyl Glycine adsorption at the air/water interface helps explaining its interaction with lipid membranes

description: N-acyl amino acids are promising surfactants with several industrial applications.Using neutron scattering we studied the biocompatibility of these compounds, with particular focus in their interaction with lipid bilayers. We identified a direct correlation between their adsorption profile at air/water interfaces and their biocompatibility. We now wish to extend this study to a relevant member of the N-acyl AA family: N-acyl Glycinate. They are commonly used with a co-surfactant because of their biocompatibility, but our studies show that, when used alone, their interaction profile with lipids to be rather unfavorable. We propose to study here the adsorption of C10-Gly at air/water interface alone and in combination with SDS, a common co-surfactant. This will have repercussions in identifying ideal surfactant mixtures for applications where favorable interactions with lipids is required
DOI: 10.3535/hmz-lms-lgs
title: Rosa gallica L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2200016
title: Understanding the role of microstructure in spin-charge conversion efficiency across heavy metal/ferromagnet bilayers

description: The heavy metal (HM)|ferromagnetic metal (FM) bilayer is a prototypical, all-metallic spintronicheterostructure which easily generates and detects spin. Spin-charge conversion in such layersunderpins proposed spintronic devices and sensors as a method to detect and control theorientation of a magnetisation. However, quantifying the fundamental parameters which dictate theefficiency limits of such devices has been an exacting challenge. In our recent work we haveprobed the role microstructure plays on determining spin scattering at the nanoscale. However,there is lack of consensus in the literature as to whether bulk or surface spin-charge conversiondominates this system. We propose using PNR experiments to determine the precise chemicaland magnetic structure at the Pt/CoFeB interface and compare to our already obtained data, inorder to clarify this situation.
DOI: 10.5286/isis.e.rb2200016-1
title: Understanding the role of microstructure in spin-charge conversion efficiency across heavy metal/ferromagnet bilayers

description: The heavy metal (HM)|ferromagnetic metal (FM) bilayer is a prototypical, all-metallic spintronicheterostructure which easily generates and detects spin. Spin-charge conversion in such layersunderpins proposed spintronic devices and sensors as a method to detect and control theorientation of a magnetisation. However, quantifying the fundamental parameters which dictate theefficiency limits of such devices has been an exacting challenge. In our recent work we haveprobed the role microstructure plays on determining spin scattering at the nanoscale. However,there is lack of consensus in the literature as to whether bulk or surface spin-charge conversiondominates this system. We propose using PNR experiments to determine the precise chemicaland magnetic structure at the Pt/CoFeB interface and compare to our already obtained data, inorder to clarify this situation.
DOI: 10.5286/isis.e.rb2210379
title: How N-acyl Glycine adsorption at the air/water interface helps explaining its interaction with lipid membranes

description: N-acyl amino acids are promising surfactants with several industrial applications.Using neutron scattering we studied the biocompatibility of these compounds, with particular focus in their interaction with lipid bilayers. We identified a direct correlation between their adsorption profile at air/water interfaces and their biocompatibility. We now wish to extend this study to a relevant member of the N-acyl AA family: N-acyl Glycinate. They are commonly used with a co-surfactant because of their biocompatibility, but our studies show that, when used alone, their interaction profile with lipids to be rather unfavorable. We propose to study here the adsorption of C10-Gly at air/water interface alone and in combination with SDS, a common co-surfactant. This will have repercussions in identifying ideal surfactant mixtures for applications where favorable interactions with lipids is required
DOI: 10.3535/73w-w4y-dts
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/y1g-1cg-6jd
title: Pluchea sericea (Nutt.) Coville

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2210347
title: Identifying Nanoscale Structures Responsible for Droplet-to-Particle Morphological Transitions with Acoustic Levitation SANS

description: Spray drying and structured powders formation underpin sizeable industries in the Formulations sector, estimated to turn £180 billion per annum in the UK, and with significant growth potential. Despite its significance and industrial impact, the drying of surfactant solution droplets in acoustic levitation, an analogous environment to spray drying, has not yet been examined from the molecular to the macroscale, correlating the accompanying conformational and phase changes to morphological shape changes and stratification. These complex challenges require a step change in experimentation to enable the predictive engineering of "smart" and "green" particles. This proposal seeks to address this challenge by studying the drying of acoustically levitated droplets, containing model surfactants with TOF-SANS and simultaneously horizontal, polarised, optical microscopy
DOI: 10.5286/isis.e.rb2210347-1
title: Identifying Nanoscale Structures Responsible for Droplet-to-Particle Morphological Transitions with Acoustic Levitation SANS

description: Spray drying and structured powders formation underpin sizeable industries in the Formulations sector, estimated to turn £180 billion per annum in the UK, and with significant growth potential. Despite its significance and industrial impact, the drying of surfactant solution droplets in acoustic levitation, an analogous environment to spray drying, has not yet been examined from the molecular to the macroscale, correlating the accompanying conformational and phase changes to morphological shape changes and stratification. These complex challenges require a step change in experimentation to enable the predictive engineering of "smart" and "green" particles. This proposal seeks to address this challenge by studying the drying of acoustically levitated droplets, containing model surfactants with TOF-SANS and simultaneously horizontal, polarised, optical microscopy
DOI: 10.3535/cda-8l5-74b
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ej6-bag-776
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2010034-1
title: Stabilization of W/CO2 nanodispersions with unusual “surfactants” bearing no headgroups or fluorination

description: Traditionally, headgroups and fluorocarbon tails (HG&FC) have been recognized as essential components of CO2-philic surfactants for stabilizing W/CO2 microemulsions. Our recent study (RB1910007) implied unusual HG&FC-free surfactants are in fact able to form W/CO2 nanodispersions (NDs). This was a very surprising discovery, with a potentially significant impact on this scientific field. Furthermore, owing to the unusual chemical structure (especially FC-free) these stabilizers could offer important benefits to generate practical, safe, cheap and universal solvents based on dense and supercritical CO2 (sc-CO2). This new experiment will explore why the unusual surfactant architecture is able to stabilize NDs in CO2, by examining the effects of P, T, W0 (water content), surfactant concentration, and different “surfactants” on internal structure of these NDs.
DOI: 10.5286/isis.e.rb2010249
title: Pore Accessibility and Competition for Pore Space between Light Alkanes in Petroliferous Shales at the Wet-gas Thermal Maturity

description: Understanding petroleum in shale reservoirs is broadly relevant given the current emphasis on these resources in the U.S. and developing interest worldwide. Petroleum in shale reservoirs is stored in organic matter and mineral pore space. However, the pore size distribution of methane vs. higher alkanes in shales is unclear. We propose to examine pore accessibility and competition for open pore space between methane and ethane in a shale sample at the wet-gas stage of thermal maturity. Competition for available pore space in the sample will be assessed by monitoring adsorption of a methane/ethane mixture and comparing the results to the adsorption of methane only. We hypothesize that methane will prefer smaller pores fractionating ethane within larger pores. If true, this suggests that when assessing shale reservoirs for C2+ alkanes an understanding of fine porosity may be unimportant.
DOI: 10.5286/isis.e.rb2010249-1
title: Pore Accessibility and Competition for Pore Space between Light Alkanes in Petroliferous Shales at the Wet-gas Thermal Maturity

description: Understanding petroleum in shale reservoirs is broadly relevant given the current emphasis on these resources in the U.S. and developing interest worldwide. Petroleum in shale reservoirs is stored in organic matter and mineral pore space. However, the pore size distribution of methane vs. higher alkanes in shales is unclear. We propose to examine pore accessibility and competition for open pore space between methane and ethane in a shale sample at the wet-gas stage of thermal maturity. Competition for available pore space in the sample will be assessed by monitoring adsorption of a methane/ethane mixture and comparing the results to the adsorption of methane only. We hypothesize that methane will prefer smaller pores fractionating ethane within larger pores. If true, this suggests that when assessing shale reservoirs for C2+ alkanes an understanding of fine porosity may be unimportant.
DOI: 10.5286/isis.e.rb2210011-2
title: Effect of a non-gelling additive and temperature on the behaviour of the gelator 2NapFF at high pH

description: 2NapFF is a peptide-based low molecular weight gelator (LMWG) commonly used to form gels using water as the solvent. Such supramolecular hydrogels are attractive for use in many applications including cell culturing. However, the properties of these materials are very difficult to predict. One method of controlling gel properties is the use of non-gelling additives. Addition of the structurally similar, non-gelling additive 2NapLG results in a significant increase in the viscosity of solutions of 2NapFF in water. A decrease in temperature further amplifies this change in behaviour. We expect that 2NapLG is altering the assembly of 2NapFF in water and thereby changing its behaviour. We therefore hope to probe the effects of both 2NapLG and low temperature on the structures formed by 2NapFF in water in order to further understand these observations.
DOI: 10.3535/n0l-esx-12h
title: Asteraceae Dumort.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/p2z-v0t-6fl
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2010034
title: Stabilization of W/CO2 nanodispersions with unusual “surfactants” bearing no headgroups or fluorination

description: Traditionally, headgroups and fluorocarbon tails (HG&FC) have been recognized as essential components of CO2-philic surfactants for stabilizing W/CO2 microemulsions. Our recent study (RB1910007) implied unusual HG&FC-free surfactants are in fact able to form W/CO2 nanodispersions (NDs). This was a very surprising discovery, with a potentially significant impact on this scientific field. Furthermore, owing to the unusual chemical structure (especially FC-free) these stabilizers could offer important benefits to generate practical, safe, cheap and universal solvents based on dense and supercritical CO2 (sc-CO2). This new experiment will explore why the unusual surfactant architecture is able to stabilize NDs in CO2, by examining the effects of P, T, W0 (water content), surfactant concentration, and different “surfactants” on internal structure of these NDs.
DOI: 10.5286/isis.e.rb2210367
title: Understanding multicomponent quantum criticality in CeCu5.8Ag0.2

description: Quantum critical fluctuations are at the origin of a plethora of coherent quantum phases, but their microscopic nature remains unclear even in model materials. One of them is CeCu5.8Ag0.2, featuring multicomponent criticality arising from potentially coupled energy scales associated with spin-density wave (SDW) order and Kondo coherence. Using an external magnetic field as an auxiliary tuning parameter, we here propose to clarify the interplay between the different fluctuating order parameters. This is required for a comprehensive microscopic understanding of quantum criticality in the CeCu6-xAgx series.
DOI: 10.5286/isis.e.rb2210367-1
title: Understanding multicomponent quantum criticality in CeCu5.8Ag0.2

description: Quantum critical fluctuations are at the origin of a plethora of coherent quantum phases, but their microscopic nature remains unclear even in model materials. One of them is CeCu5.8Ag0.2, featuring multicomponent criticality arising from potentially coupled energy scales associated with spin-density wave (SDW) order and Kondo coherence. Using an external magnetic field as an auxiliary tuning parameter, we here propose to clarify the interplay between the different fluctuating order parameters. This is required for a comprehensive microscopic understanding of quantum criticality in the CeCu6-xAgx series.
DOI: 10.3535/614-lwa-thw
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/pe1-dpy-xha
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2210233-1
title: Spectrum of Yb3Fe5O12 in applied magnetic fields

description: The iron garnets have since long been object of study for their unique magneto-optical properties. The plethora of research, conducted mostly between the 1960’s and the 1980’s, was insufficient to provide deep fundamental knowledge of the most established magnetic properties presented by those materials. Motivated by recent magnetometry data, we propose to build on our recent results for Yb3Fe5O12 and study the effects of magnetic fields upon the magnetic excitation spectrum of the compound using LET.
DOI: 10.5286/isis.e.rb2210276
title: SANS study of pH-induced structural alteration of lipid nanoparticles for gene delivery

description: We have studied lipid nanoparticles (LNPs) prepared from an ionisable cationic lipid, a helper lipid, a cholesterol and a poly(ethylene glycol) (PEG) lipid via a microfluidic system. This 4-component system mimics the LNP nanocarriers used in the delivery of COVID-19 vaccines by Pfizer and Moderna. Our recent studies have revealed vast variations in the transfection and expression efficiency of LNPs in both in vitro and in vivo experiments from substituting some ingredients with their analogs. Furthermore, pH environment also has a huge impact on their nanostructures. As LNPs are internalized via emdosomal cycling during which pH gradually becomes acidic, we request 3 days of SANS2D to undertake the proposed work and cover the widest Q range for better structural resolution,
DOI: 10.5286/isis.e.rb2210276-1
title: SANS study of pH-induced structural alteration of lipid nanoparticles for gene delivery

description: We have studied lipid nanoparticles (LNPs) prepared from an ionisable cationic lipid, a helper lipid, a cholesterol and a poly(ethylene glycol) (PEG) lipid via a microfluidic system. This 4-component system mimics the LNP nanocarriers used in the delivery of COVID-19 vaccines by Pfizer and Moderna. Our recent studies have revealed vast variations in the transfection and expression efficiency of LNPs in both in vitro and in vivo experiments from substituting some ingredients with their analogs. Furthermore, pH environment also has a huge impact on their nanostructures. As LNPs are internalized via emdosomal cycling during which pH gradually becomes acidic, we request 3 days of SANS2D to undertake the proposed work and cover the widest Q range for better structural resolution,
DOI: 10.15468/dl.m66hp7
title: Occurrence Download

description: A dataset containing 1317 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Aaptosyax grypus Rainboth, 1991, Catlocarpio siamensis Boulenger, 1898, Datnioides pulcher (Kottelat, 1998), Oreoglanis lepturus Ng & Rainboth, 2001, Pangasianodon gigas Chevey, 1931, Pangasius sanitwongsei Smith, 1931, Probarbus jullieni Sauvage, 1880, Scaphognathops theunensis Kottelat, 1998, Schistura leukensis Kottelat, 2000, Schistura tenura Kottelat, 2000, Sewellia breviventralis Freyhof & Serov, 2000, Fluvitrygon oxyrhynchus (Sauvage, 1878), Hemitrygon laosensis (Roberts & Karnasuta, 1987), Laubuka caeruleostigmata Smith, 1931, Luciocyprinus striolatus Cui & Chu, 1986, Pangasianodon hypophthalmus (Sauvage, 1878), Probarbus labeamajor Roberts, 1992, Pterocryptis inusitata Ng, 1999, Rhinogobius lineatus Chen, Kottelat & Miller, 1999, Schistura bairdi Kottelat, 2000, Schistura bolavenensis Kottelat, 2000, Schistura nudidorsum Kottelat, 1998, Terateleotris aspro (Kottelat, 1998), Urogymnus polylepis (Bleeker, 1852), Fluvitrygon signifer (Compagno & Roberts, 1982), Schistura quasimodo Kottelat, 2000, Ambastaia nigrolineata (Kottelat & Chu, 1987), Speolabeo musaei (Kottelat & Steiner, 2011), Cirrhinus microlepis Sauvage, 1878, Datnioides undecimradiatus (Roberts & Kottelat, 1994), Epalzeorhynchos munense (Smith, 1934), Hemimyzon confluens Kottelat, 2000, Hypsibarbus lagleri Rainboth, 1996, Bangana behri (Fowler, 1937), Labeo pierrei (Sauvage, 1880), Mystacoleucus lepturus Huang, 1979, Nemacheilus banar Freyhof & Serov, 2001, Osphronemus exodon Roberts, 1994, Oxygaster pointoni (Fowler, 1934), Pangasius krempfi Fang & Chaux, 1949, Poropuntius speleops (Roberts, 1991), Rhinogobius albimaculatus Chen, Kottelat & Miller, 1999, Rhodeus laoensis Kottelat, Doi & Musikasinthorn, 1998, Scaphognathops bandanensis Boonyaratpalin & Srirungroj, 1971, Schistura atra Kottelat, 1998, Schistura kaysonei Vidthayanon & Jaruthanin, 2002, Schistura kontumensis Freyhof & Serov, 2001, Schistura tubulinaris Kottelat, 1998, Serpenticobitis cingulata Roberts, 1997, Tenualosa thibaudeaui (Durand, 1940), Tor sinensis Wu, 1977, Troglocyclocheilus khammouanensis Kottelat & Bréhier, 1999, Wallago attu (Bloch & Schneider, 1801), Betta splendens Regan, 1910, Devario apopyris (Fang & Kottelat, 1999), Mystus bocourti (Bleeker, 1864), Yasuhikotakia splendida (Roberts, 1995), Aetobatus ocellatus (Kuhl, 1823), Gymnura poecilura (Shaw, 1804))",
 "Geometry POLYGON((99.0208333330919 9.52859937905816, 108.775353325995 9.52859937905816, 108.775353325995 22.779519992154, 99.0208333330919 22.779519992154, 99.0208333330919 9.52859937905816))"
 ]
}

 The dataset includes 1317 records from 30 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0109214-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.