cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2310040
title: Dissolution mechanism of N-acetylated chitotriose in urea/alkali aqueous solvents

description: Chitin is the second most abundant natural polysaccharides, with a repeating unit of 2-(acetylamino)-2-deoxy-d-glucose. It is regarded as a superior material for a variety of applications, including pharmaceutical, biomedical, food, textile and packaging industries. However, due to its high crystallinity and strong intra-/inter-hydrogen bonding, it is insoluble in common solvents but some acids, the later of which are poisonous, poorly degradable, corrosive, or mutagenic. Therefore, the identification of environmentally friendly solvents and comprehension of its solvation mechanism are the keys to widely applying chitin materials . Einbu et al. discovered that urea (CH4N2O) can improve chitin depolymerization, deacetylation, and alkali solution stability. Gong et al. discoverd that the dissolution power of alkalis goes in the following order: KOH&gt;NaOH&gt;LiOH. However, the precise mechanism of dissolution remains unknown.
DOI: 10.5286/isis.e.rb2310040-1
title: Dissolution mechanism of N-acetylated chitotriose in urea/alkali aqueous solvents

description: Chitin is the second most abundant natural polysaccharides, with a repeating unit of 2-(acetylamino)-2-deoxy-d-glucose. It is regarded as a superior material for a variety of applications, including pharmaceutical, biomedical, food, textile and packaging industries. However, due to its high crystallinity and strong intra-/inter-hydrogen bonding, it is insoluble in common solvents but some acids, the later of which are poisonous, poorly degradable, corrosive, or mutagenic. Therefore, the identification of environmentally friendly solvents and comprehension of its solvation mechanism are the keys to widely applying chitin materials . Einbu et al. discovered that urea (CH4N2O) can improve chitin depolymerization, deacetylation, and alkali solution stability. Gong et al. discoverd that the dissolution power of alkalis goes in the following order: KOH&gt;NaOH&gt;LiOH. However, the precise mechanism of dissolution remains unknown.
DOI: 10.5286/isis.e.rb2390047-1
title: Muon states in CCl4
DOI: 10.3535/g1z-yl3-lws
title: Myrica L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/xp0-6rm-ryk
title: Ramalina rigidella Aptroot

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2335512
title: Polaris Calibration - 2023 FY Cycles
DOI: 10.5286/isis.e.rb2335512-2
title: Polaris Calibration - 2023 FY Cycles
DOI: 10.3535/7g4-8et-f99
title: Jacquinia obovata var. evenulosa Lepper & J. E. Gut.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/exm-scv-jvy
title: Jacquinia toldensis Lepper & J. E. Gut.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2368031
title: Crystal field levels investigations in 2D Kagome lattice compound Ho3Sb3Zn2O14
DOI: 10.5286/isis.e.rb2368031-1
title: Crystal field levels investigations in 2D Kagome lattice compound Ho3Sb3Zn2O14
DOI: 10.5286/isis.e.rb2390035-1
title: Oxygen stoichiometry in Ru doped Ce(0.8)Pr(0.2)O(2-d)
DOI: 10.3535/32h-kr3-4qk
title: Spergularia (Pers.) J. Presl & C. Presl

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/qkt-0w1-j71
title: Ramalina hyrcana Sipman

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220719
title: Inelastic Neutron Scattering (INS) study of some Ni-doped Mn5Si3 alloys
DOI: 10.5286/isis.e.rb2220719-1
title: Inelastic Neutron Scattering (INS) study of some Ni-doped Mn5Si3 alloys
DOI: 10.5286/isis.e.rb2255011-2
title: A4I - ABCs of LNPs - Advanced Biophysical Characterisation of Lipid Nanoparticles for mRNA Therapeutics
DOI: 10.3535/4yj-nc8-4mw
title: Urtica L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/pps-r6y-tx4
title: Stipa L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220533
title: Benchmarking of Residual Stress Simulation on Cylinder Head Components
DOI: 10.5286/isis.e.rb2220533-1
title: Benchmarking of Residual Stress Simulation on Cylinder Head Components
DOI: 10.5286/isis.e.rb2310177-1
title: Identifying the gap structure with muons in the new superconductor La3Os

description: Superconductors that form in lower-symmetry crystal structures have the potential to exhibit unconventional behaviour, because there are less restrictions on the exact form of the order parameter. In both orthorhombic superconductors La3Co and La3Ni, electronic structure calculations indicate that spin fluctuations play a role in the enhancing the coupling strength. We propose to study a polycrystalline sample of La3Os, which is a new superconductor that forms in the same structure as La3(Co, Ni). Heat capacity data indicate that La3Os exhibits an unknown unconventional gap structure. We propose to use muons to study the mixed state and search for signatures of time-reversal symmetry breaking to identify the superconducting pairing state in La3Os.
DOI: 10.3535/4pp-mz0-vap
title: Discaria × serratifolia (Miers) Benth. & Hook. fil. ex Mast.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/z6f-26t-sq7
title: Urtica L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310177
title: Identifying the gap structure with muons in the new superconductor La3Os

description: Superconductors that form in lower-symmetry crystal structures have the potential to exhibit unconventional behaviour, because there are less restrictions on the exact form of the order parameter. In both orthorhombic superconductors La3Co and La3Ni, electronic structure calculations indicate that spin fluctuations play a role in the enhancing the coupling strength. We propose to study a polycrystalline sample of La3Os, which is a new superconductor that forms in the same structure as La3(Co, Ni). Heat capacity data indicate that La3Os exhibits an unknown unconventional gap structure. We propose to use muons to study the mixed state and search for signatures of time-reversal symmetry breaking to identify the superconducting pairing state in La3Os.
DOI: 10.5286/isis.e.rb2310371
title: α-RuI3: A new quantum spin liquid on a honeycomb lattice?

description: α-RuI3 is adopt a honeycomb structure and is isostructural to α-RuCl3, a compound which has attracted enormous interest as a model system described by the Heisenberg-Kitaev model. The iodide is, unlike the chloride, metallic and (again unlike the chloride) exhibits no magnetic ordering down to 1.8 K. We previously showed that muons were well suited to studying α-RuCl3. Our proposed experiment would use milliKelvin temperatures to set a new limit on the extent to which α-RuI3 behaves as a quantum spin liquid.
DOI: 10.5286/isis.e.rb2310371-1
title: α-RuI3: A new quantum spin liquid on a honeycomb lattice?

description: α-RuI3 is adopt a honeycomb structure and is isostructural to α-RuCl3, a compound which has attracted enormous interest as a model system described by the Heisenberg-Kitaev model. The iodide is, unlike the chloride, metallic and (again unlike the chloride) exhibits no magnetic ordering down to 1.8 K. We previously showed that muons were well suited to studying α-RuCl3. Our proposed experiment would use milliKelvin temperatures to set a new limit on the extent to which α-RuI3 behaves as a quantum spin liquid.
DOI: 10.3535/mnm-3za-zqs
title: Stipa × gegarkunii P.A.Smirn.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2310326
title: Investigation of the Structural Evolution of Small Molecule-Doped Ethomeen 18/12 Self Assembled Structures in Different Solvents

description: The precise mechanism by which organic friction modifiers adsorb to a metal surface and reduce friction and wear remains unclear. Conflicting results exist between the currently accepted theory for lubrication and molecular dynamics simulations, with the latter indicating that the adsorption of micellar aggregates on metal surfaces may play a key role in reducing friction. In order to utilise these compounds optimally, this mechanism must be precisely understood. This will enable the information of the next generation of friction modifiers that drastically improve the lifetime of engines and significantly reduce fuel emissions. In previous experiments, we have investigated the impact of small biofuel-related molecules on the self-aggregation of E1812 in dodecane. These studies have highlighted the importance of hydrogen-bonding for micellisation. In this work, we hope to investigate the impact of solvent polarity on the formation of these structures through the use of SANS and deuteration.
DOI: 10.5286/isis.e.rb2310326-1
title: Investigation of the Structural Evolution of Small Molecule-Doped Ethomeen 18/12 Self Assembled Structures in Different Solvents

description: The precise mechanism by which organic friction modifiers adsorb to a metal surface and reduce friction and wear remains unclear. Conflicting results exist between the currently accepted theory for lubrication and molecular dynamics simulations, with the latter indicating that the adsorption of micellar aggregates on metal surfaces may play a key role in reducing friction. In order to utilise these compounds optimally, this mechanism must be precisely understood. This will enable the information of the next generation of friction modifiers that drastically improve the lifetime of engines and significantly reduce fuel emissions. In previous experiments, we have investigated the impact of small biofuel-related molecules on the self-aggregation of E1812 in dodecane. These studies have highlighted the importance of hydrogen-bonding for micellisation. In this work, we hope to investigate the impact of solvent polarity on the formation of these structures through the use of SANS and deuteration.
DOI: 10.3535/fne-1y5-nrl
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/h2q-jxs-eqf
title: Prunella vulgaris L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220689
title: Dynamics of Copper within Methane-to-Methanol Conversion Catalysts
DOI: 10.5286/isis.e.rb2220689-1
title: Dynamics of Copper within Methane-to-Methanol Conversion Catalysts
DOI: 10.5286/isis.e.rb2310447-1
title: Probing how alkyl ethoxylate nonionic surfactants become embedded in human corneal cell membrane

description: Nonionic surfactants are widely used as adjuvants in pesticide formulation and agro-sprays. During spraying, they may come into direct contact with human eyes, causing corneal irritation. Our recent studies have shown that nonionic surfactants kill cells by disrupting the cytoplasmic membrane at or above its critical micellar concentration, leading to cytoplasmic leakage. In this work, we propose to use neutron reflection to study how nonionic CnEm interacts with supported lipid bilayer under a set of H/D contrasts involving deuterated lipid, surfactants and H2O and D2O. We will focus on examining the structural features of cytotoxicity of two sets of nonionic surfactants (alkyl ethoxylate, CnEm) towards the lipid membrane bilayer, with one set composed of varied surfactant head length but fixed tail length (C12E4-23) and the other set oppositely composed (C10-16E6). These structural features will enable us to understand how different nonionic surfactants impose different membrane-lytic interactions and therefore make useful correlation to cytotoxicity data.
DOI: 10.3535/86r-91k-tyr
title: Goodenia Sm.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/pb0-z6n-d4g
title: Valeriana L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2291094
title: Structure of [NO][BF4]
DOI: 10.5286/isis.e.rb2310221-2
title: Magnetic structure characterization on 4d5 La2BRhO6 (B = Mg, Zn) materials with double perovskite structure at dilution temperatures with NPD

description: During the last decade increasing efforts in finding a material realizing the theoretically predicted quantum spin liquid (QSL) state, characterized by the absence of long-ranged magnetic order as well as highly entangled and dynamic spins down to zero Kelvin, has led to intense studies of various frustrated systems. Recently, the search for new QSL compounds has been extended to strongly spin-orbit coupled 4d/5d systems, such as Ir-/Rh-based oxides, showing promising results, motivating to take a closer look also at 4d double perovskites. Here, the relatively understudies Rh4+ 4d5 based compounds La2BRhO6 (B = Zn, Mg) offer an interesting platform for a deeper understanding of the origin of the QSL state. Our preliminary work revealed, that La2ZnRhO6 doesn’t experience any sign of long-range magnetic order down to 0.36 K and a power-law behaviour in specific heat measurements. At the same time magnetisation studies show sizable antiferromagnetic correlation in the high temperature Curie-Weiss behaviour with ΘCW = -36 K resulting in a high frustration factor of 100. An apparent phase transition is only evident in the dilution temperature magnetisation measurements near 1-1.5 K. The thermal hysteretic behaviour and sweep rate dependence suggest a structural origin. Leaving open the possibility of a QSL state. The isostructural La2MgRhO6 on the other hand, having a similar ΘCW, shows signs of an antiferromagnetic phase transition around 7 K.
DOI: 10.5286/isis.e.rb2310447
title: Probing how alkyl ethoxylate nonionic surfactants become embedded in human corneal cell membrane

description: Nonionic surfactants are widely used as adjuvants in pesticide formulation and agro-sprays. During spraying, they may come into direct contact with human eyes, causing corneal irritation. Our recent studies have shown that nonionic surfactants kill cells by disrupting the cytoplasmic membrane at or above its critical micellar concentration, leading to cytoplasmic leakage. In this work, we propose to use neutron reflection to study how nonionic CnEm interacts with supported lipid bilayer under a set of H/D contrasts involving deuterated lipid, surfactants and H2O and D2O. We will focus on examining the structural features of cytotoxicity of two sets of nonionic surfactants (alkyl ethoxylate, CnEm) towards the lipid membrane bilayer, with one set composed of varied surfactant head length but fixed tail length (C12E4-23) and the other set oppositely composed (C10-16E6). These structural features will enable us to understand how different nonionic surfactants impose different membrane-lytic interactions and therefore make useful correlation to cytotoxicity data.
DOI: 10.15468/dl.k9juhj
title: Occurrence Download

description: A dataset containing 5841 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Corispermum pallasii Steven",
 "Country is Netherlands",
 "HasCoordinate is true"
 ]
}

 The dataset includes 5841 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0109231-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/4ay-1mq-ldk
title: Amelanchier × spicata (Lam.) K. Koch

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/rcj-02y-hsz
title: Stipa L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220019
title: CHARACTERISATION OF METASTATIC BONE LESIONS BY NEUTRON SPECTROSCOPY at MAPS
DOI: 10.5286/isis.e.rb2220019-1
title: CHARACTERISATION OF METASTATIC BONE LESIONS BY NEUTRON SPECTROSCOPY at MAPS
DOI: 10.5286/isis.e.rb2220397-1
title: Magnetostructural transition in Giant magnetocaloric (Mn,Fe)NiSi-system
DOI: 10.3535/xfx-n97-bmd
title: Echinops sphaerocephalus subsp. sphaerocephalus

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/yyr-vyv-xb9
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220283-2
title: High-pressure studies of ammonium dinitramide
DOI: 10.5286/isis.e.rb2220397
title: Magnetostructural transition in Giant magnetocaloric (Mn,Fe)NiSi-system
DOI: 10.3535/hjh-krl-n7y
title: Lolium × krasanii (H.Scholz) Banfi, Galasso, Foggi, Kopecký & Ardenghi

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220226
title: Intrinsic defect structure of praseodymium zirconate
DOI: 10.5286/isis.e.rb2220226-1
title: Intrinsic defect structure of praseodymium zirconate
DOI: 10.5286/isis.e.rb2220283
title: High-pressure studies of ammonium dinitramide

description: This proposal seeks to explore the high-pressure behaviour of ammonium dinitramide, a green oxidiser that is a potential replacement for the widely used ammonium perchlorate. The results of these studies will provide valuable information on the effects of pressure on the structure of ammonium dinitramide, and in particular will shed light on the apparent phase transitions near 2 GPa and 5-6 GPa. The experimental results will be compared with the results of DFT calculations and an ongoing, complementary single crystal X-ray diffraction study. The results will be of substantial interest to those modelling the behaviour and performance of this material, especially under shock and pre-detonation conditions and will improve our understanding of the factors that influence the sensitivity to energetic materials to initiation, thereby enabling the design of new, safer energetic materials.
DOI: 10.3535/drd-6jc-efr
title: Paspalum L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/hcs-kwc-mhp
title: Geum L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2291073-1
title: Crystal field of a Cobalt triangle
DOI: 10.5286/isis.e.rb2390041
title: Dynamics of tetrahydrofuran at low temperature
DOI: 10.5286/isis.e.rb2390041-1
title: Dynamics of tetrahydrofuran at low temperature
DOI: 10.3535/pt6-yew-0rj
title: Mosiera elliptica subsp. insularis Bisse ex Urquiola

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/qcd-typ-5ye
title: Verrucaria

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2291073
title: Crystal field of a Cobalt triangle
DOI: 10.5286/isis.e.rb2310449
title: Symmetric or Asymmetric? Self-assembly of bola-formed nonionic surfactants EnC12Em

description: Symmetric and asymmetric bola-form nonionic surfactants offer interesting self-assembled nanostructures and solubilisation features. We propose a set of SANS studies to help understand how symmetricity affects the self-assembly of these bola-formed nonionic surfactants. We have synthesised several symmetric and asymmetric bola-formed nonionic surfactants EnC12Em (n + m = 8) including E2C12E6, E3C12E5, and E4C12E4. Our NMR and MS results indicated that all EnC12Em are monodisperse and pure. The surface tension and micellar size change against temperature for the bola-formed nonionic surfactants EnC12Em varied significantly, indicating the great impact by symmetricity. SANS is about the only technique to determine the size and shape of the nanostructures formed by symmetric and asymmetric bola-formed nonionic surfactants EnC12Em. When combined with deuterium incorporation to surfactants and solvent, it is possible to determine more detailed assembled patterns of these nanoaggregates. We request 2 days of SANS2d or Larmor time.
DOI: 10.5286/isis.e.rb2310449-2
title: Symmetric or Asymmetric? Self-assembly of bola-formed nonionic surfactants EnC12Em

description: Symmetric and asymmetric bola-form nonionic surfactants offer interesting self-assembled nanostructures and solubilisation features. We propose a set of SANS studies to help understand how symmetricity affects the self-assembly of these bola-formed nonionic surfactants. We have synthesised several symmetric and asymmetric bola-formed nonionic surfactants EnC12Em (n + m = 8) including E2C12E6, E3C12E5, and E4C12E4. Our NMR and MS results indicated that all EnC12Em are monodisperse and pure. The surface tension and micellar size change against temperature for the bola-formed nonionic surfactants EnC12Em varied significantly, indicating the great impact by symmetricity. SANS is about the only technique to determine the size and shape of the nanostructures formed by symmetric and asymmetric bola-formed nonionic surfactants EnC12Em. When combined with deuterium incorporation to surfactants and solvent, it is possible to determine more detailed assembled patterns of these nanoaggregates. We request 2 days of SANS2d or Larmor time.
DOI: 10.3535/gmd-apt-b0w
title: Verrucaria

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/s43-3tr-pfz
title: Pseudolepraria stephaniana (Elix, Flakus & Kukwa) Kukwa, Jabłońska, Kosecka & Guzow-Krzem.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2220261
title: Spin waves in noncollinear ferromagnet LaMn2Ge2
DOI: 10.5286/isis.e.rb2220261-1
title: Spin waves in noncollinear ferromagnet LaMn2Ge2
DOI: 10.5286/isis.e.rb2310341-1
title: Hydride-ion dynamics in a Barium Titanate Perovskite Oxyhydride

description: Perovskite type oxyhydrides, ATiO3-xHx, A = Sr, Ba, with x &lt; 0.6 [1], are a novel class of hydride-ion (H-) conducting materials that may find diverse applications in the fields of catalysis, topochemical synthesis, and electrochemistry, but fundamental questions surrounding the mechanism of hydride-ion conductivity remain to be answered. The current understanding of the hydride-ion dynamics in these materials is primarily based on our results from quasielastic neutron scattering (QENS) experiments on BaTiO3-x-yHx◻y (◻ denoting oxygen vacancies) where we observed a temperature-dependent diffusion mechanism characterized by hydride-ion jumps between nearest-neighbor oxygen vacancies. In addition, we observed in SrTiO2.81H0.13◻0.06 fast and localized hydride-ion motions, already at low temperature (100 K), contrasting with the slow and long-range mechanism so far reported with BaTiO3-x-yHx◻y. However, the QENS signal is weak and hampered by a large elastic contribution from the disordered perovskite host lattice, and its the analysis is difficult. In order to shed more light on the observed dynamics of SrTiO2.81H0.13◻0.06, and investigate the effect of the A site ion (Sr/Ba), we propose a QENS study of BaTiO2.81H0.13◻0.06 on the spectrometer LET using polarization analysis as a mean to separate the spin-incoherent scattering from the isotopic nuclear disorder scattering, and from the coherent scattering at Bragg peak positions.
DOI: 10.3535/9k6-xsv-zsl
title: Vermilacinia

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