gebhart/patrepeval huggingface dataset:
Field Tunable Magnetic Transitions of CsCo2(MoO4)2(OH): A Triangular Chain Structure with a Frustrated Geometry (2022)

Identifying and characterizing new magnetic systems with Co2+ ions can enhance our understanding of quantum behavior since Co2+ can host a pseudospin-1/2 magnetic ground state. Understanding the magnetic ground state and the phase diagrams of such systems are central to the development of new theoretical models to described emergent quantum properties of complex magnetic systems. The sawtooth chain compound, CsCo2MoO4_2OH, is one such complex magnetic system and here, we present a comprehensive series of magnetic and neutron scattering measurements to determine its magnetic phase diagram. The magnetic properties of CsCo2MoO4_2OH exhibit a strong coupling to the crystal lattice and its magnetic ground state can be easily manipulated by applied magnetic fields. There are two unique Co2+ ions, base and vertex, with Jbb and Jbv magnetic exchange. The magnetism is highly anisotropic with the b-axis (chain) along the easy axis and the material orders antiferromagnetically at TN = 5 K. The zero field antiferromagnetic phase contains vertex magnetic vectors Co1 aligned parallel to the b-axis, while the base vectors Co2 are canted by 34 and aligned in an opposite direction to the vertex vectors. The spins in parallel adjacent chains align in opposite directions, creating an overall antiferromagnetic structure. At a 3 kOe applied magnetic field, adjacent chains flip by 180° to generate a ferrimagnetic phase. An increase in field gradually induces the Co(1) moment to rotate along the b-axis and align in the same direction with Co2 generating a ferromagnetic structure. Our results demonstrate that the CsCo2MoO4_2OH is a promising candidate to study new physics associated with sawtooth chain magnetism.
THz-wave parametric oscillator with arrayed silicon prism coupler (2000)

Arrayed Si-prism coupler was introduced into the THz-wave parametric oscillator to increase the efficiency and decrease the diffraction angle. Output of -20mW peak and diffraction angle of 0.5deg. were obtained by this method.
Relative examination of antioxidative enzymatic activities in plantlets of Cardiospermum halicacabum L. differentiated from hypocotyls in in vivo and ex vitro environment (2014)

A plant regeneration protocol was devised for <i>Cardiospermum halicacabum</i> by means of aseptically extracted 7 days old hypocotyls forming adventitious shoots on Murashige and Skoog (MS) medium harmonized with 0.7 μM thidiazuron (TDZ) producing a maximum of 18.20 ± 0.98 number of shoots in 94% cultures following 4 weeks. Subsequent subculturing for five passages, on a medium without plant growth regulators, tempted the highest shoot number (40.00 ± 1.15) with an average shoot length of 6.53 ± 0.49 cm after the fourth subculture. Histological sections confirmed the formation of multiple buds from hypocotyl explants. The expression of antioxidant enzymes like superoxide dismutase, catalase, ascorbate peroxidase and glutathione reductase was found to be higher in acclimatized plants than in the in vitro cultured ones suggesting the involvement of these enzymes in shoot differentiation and in growth under external environment partly due to their ability to cope up with oxidative stress.
Impact of Surface-Functionalized CdSe Nanoparticles on Phase Transitions of 8CB And CE8 Liquid Crystals (2012)

Abstract The impact of the surface–functionalised CdSe nanoparticles on various phase transitions of the two liquid crystals, 8CB and CE8, has been examined by means of high-resolution calorimetry. The addition of nanoparticles results in suppression of phase transitions and change in heat capacity anomalies. In contrast to silica aerosils CdSe nanoparticles do not form a rigid network. As a consequence, the impact of CdSe impurities on phase transitions resembles so called floppy phase regime, which exists at low concentrations of aerosils mixtures. Keywords: liquid crystalsnanoparticlesphase transition behaviourhigh-resolution calorimetry Acknowledgments This work was supported by the Slovenian Research Agency under program P1-0125 and projects J1-9368, J1–2015.
Deposition of Diamond Films in A Closed Hot Filament Cvd System (1995)

A closed system hot filament chemical vapor deposition (CVD) reactor has been used to deposit diamond films on silicon substrates. A fixed charge of hydrogen gas is fed into the deposition system until the desired deposition pressure level is reached. A solid graphite cylindrical rod held above the tungsten filament was the carbon source. System parameters for diamond film growth have been determined. The diamond structure of the films has been verified by x-ray diffraction (XRD). Morphology typical of CVD diamond films has been observed in scanning electron microscopy (SEM). The quality of the diamond films has been evaluated by micro-Raman spectroscopy.
Human placenta/umbilical cord derivatives in regenerative medicine – Prospects and challenges (2023)

The human placenta and umbilical cord, natural birth biowaste, are a housing unit for numerous bioactive macromolecules, growth factors, collagen and GAGs, with an array of high-quality stem cells. MSCs isolated from the human placenta and umbilical cord are utilized in both research and medical applications due to their sustainable sourcing, high viability, multipotent lineage and potency. They present an unprecedented opportunity in the tissue engineering, biomedical and biotechnology fields with minimal ethical constraints and nominal cost. Considering the world population and daily birth rates, with appropriate utilization and management, they could resolve the MSC shortage in the global stem cell therapy market and present biomedical waste disposal. A considerable number of clinical trials are presently underway where placenta-derived stem cells have been administered for different pathologies. Since the umbilical cord and placenta's primary function is to sustain the fetus until delivery, it has an ample supply of nutrients, proteins and essential factors necessary to assist cell viability and proliferation. Present research and medical applications include the fabrication of ECM-based nanofibers, disease models, micro-tissue, hybrid models and artificial implants. Future utilization of birthing biomedical waste in medical engineering and research will provide a rich and sustainable source of stem cells and extracellular matrix for enhanced biocompatibility and regeneration.
Comparison of signal peptides for efficient protein secretion in the baculovirus-silkworm system (2012)

Abstract The baculovirus-silkworm expression system is widely used as a mass production system for recombinant secretory proteins. However, the final yields of some recombinant proteins are not sufficient for industrial use. In this study, we focused on the signal peptide as a key factor for improving the efficiency of protein production. Endoplasmic reticulum (ER) translocation of newly synthesized proteins is the first stage of the secretion pathway; therefore, the selection of an efficient signal peptide would lead to the efficient secretion of recombinant proteins. The Drosophila Bip and honeybee melittin signal peptides have often been used in this system, but to the best of our knowledge, there has been no study comparing secretion efficiency between exogenous and endogenous signal peptides. In this study we employed signal peptides from 30K Da and SP2 proteins as endogenous signals, and compared secretion efficiency with those of exogenous or synthetic origins. We have found that the endogenous secretory signal from the 30K Da protein is the most efficient for recombinant secretory protein production in the baculovirus-silkworm expression system.
La sécurité des batteries à ions lithium : possibilité de risque zéro ? (2012)

Le stockage électrochimique de l’énergie est l’un des grands défis du xxie siècle, tant pour l’exploitation des énergies renouvelables que pour le développement du véhicule électrique. Les batteries, notamment celles à ions lithium (Li), sont très convoitées pour ces applications qui requièrent de grandes quantités d’énergie. Il reste à diminuer leur coût et à améliorer leur sécurité d’usage. Sur ces thèmes, le réseau sur le stockage électrochimique de l’énergie (RS2E) a organisé une journée ...
Correlation between shapes of Shockley stacking faults and structures of basal plane dislocations in 4H-SiC epilayers (2017)

Shockley-type stacking faults expanded in 4H–SiC epilayers induced by ultraviolet illumination were investigated using a photoluminescence imaging method, a photoluminescence mapping method and X-ray topography. After ultraviolet illumination, more than 30 patterns of Shockley-type stacking faults which expanded from perfect basal plane dislocations were observed by photoluminescence imaging. The initial basal plane dislocations were crystallographically classified, and individual shapes of expanded Shockley-type stacking faults were predicted. The correspondence between the predicted shapes and observed ones was discussed.
Magnetic solid phase extraction using Fe3O4@β-cyclodextrin–lipid bilayers as adsorbents followed by GC-QTOF-MS for the analysis of nine pesticides (2020)

A rapid method for the analysis of trace organochlorine pesticides in a complex matrix.
MicroRNA Regulation of Human Genes Essential for Influenza A (H7N9) Replication (2016)

Influenza A viruses are important pathogens of humans and animals. While seasonal influenza viruses infect humans every year, occasionally animal-origin viruses emerge to cause pandemics with significantly higher morbidity and mortality rates. In March 2013, the public health authorities of China reported three cases of laboratory confirmed human infection with avian influenza A (H7N9) virus, and subsequently there have been many cases reported across South East Asia and recently in North America. Most patients experience severe respiratory illness, and morbidity with mortality rates near 40%. No vaccine is currently available and the use of antivirals is complicated due the frequent emergence of drug resistant strains. Thus, there is an imminent need to identify new drug targets for therapeutic intervention. In the current study, a high-throughput screening (HTS) assay was performed using microRNA (miRNA) inhibitors to identify new host miRNA targets that reduce influenza H7N9 replication in human respiratory (A549) cells. Validation studies lead to a top hit, hsa-miR-664a-3p, that had potent antiviral effects in reducing H7N9 replication (TCID50 titers) by two logs. In silico pathway analysis revealed that this microRNA targeted the LIF and NEK7 genes with effects on pro-inflammatory factors. In follow up studies using siRNAs, anti-viral properties were shown for LIF. Furthermore, inhibition of hsa-miR-664a-3p also reduced virus replication of pandemic influenza A strains H1N1 and H3N2.
Glycosphingolipids in cestodes (1992)

The presence of glycosphingolipids in the metacestodes of the fox tapeworm, Taenia crassiceps, has been established. The normal-phase TLC pattern of the neutral-fraction glycolipids revealed groups of bands corresponding to homologous components of increasing sugar chain length. The three simplest glycolipid components have been isolated and their chemical constitution determined as being of the neogala series: Gal beta 1Cer, Gal beta 6Gal beta 1Cer and Gal beta 6Gal beta 6Gal beta 1Cer. The ceramide tetrasaccharide fraction has been found to consist of a mixture of neogalatetraosylceramide, as an elongation of the neogala series, Gal beta 6Gal beta 6Gal beta 6Gal beta 1Cer and the component Gal alpha 4Gal beta 6Gal beta 6Gal beta 1Cer (both occurring in approximately equimolar proportions). The long-chain bases of the ceramide monogalactoside, digalactoside, trigalactoside and tetragalactosides contain, as well as small amounts of sphingosine, predominantly dihydrosphingosine/phytosphingosine in the approximate ratios 1.7:1, 1.4:1, 1:1 and 2.3:1, respectively. The major ceramide fatty acids have particularly long chains, with hexacosanoic and octacosanoic acids predominating. Upon reverse-phase TCL, the glycolipid components ceramide monogalactoside, digalactoside and trigalactoside were each separable into five component bands. Parent glycolipid components therefore show component band distributions comparable to one another in being governed by similar ceramide constitutions.
UNC93B1 is essential for the plasma membrane localization and signaling of Toll-like receptor 5 (2014)

The proper trafficking and localization of Toll-like receptors (TLRs) are important for specific ligand recognition and efficient signal transduction. The TLRs sensing bacterial membrane components are expressed on the cell surface and recruit signaling adaptors to the plasma membrane upon stimulation. On the contrary, the nucleotide-sensing TLRs are mostly found inside cells and signal from the endolysosomes in an acidic pH-dependent manner. Trafficking of the nucleotide-sensing TLRs from the endoplasmic reticulum to the endolysosomes strictly depends on UNC93B1, and their signaling is completely abolished in the 3d mutant mice bearing the H412R mutation of UNC93B1. In contrast, UNC93B1 was considered to have no role for the cell surface-localized TLRs and signaling via TLR1, TLR2, TLR4, and TLR6 is normal in the 3d mice. Unexpectedly, we discovered that TLR5, a cell surface receptor for bacterial protein flagellin, also requires UNC93B1 for plasma membrane localization and signaling. TLR5 physically interacts with UNC93B1, and the cells from the 3d or UNC93B1-deficient mice not only lack TLR5 at the plasma membrane but also fail to secret cytokines and to up-regulate costimulatory molecules upon flagellin stimulation, demonstrating the essential role of UNC93B1 in TLR5 signaling. Our study reveals that the role of UNC93B1 is not limited to the TLRs signaling from the endolysosomes and compels the further probing of the mechanisms underlying the UNC93B1-assisted differential targeting of TLRs.
The Behavior of Na ‐ TiS2 and Na ‐ TiS3 as Solid Solution Electrodes (1981)

We have investigated the behavior of and electrodes in a sodium cell at temperatures between 230° and 280°C using the solid electrolyte β''‐alumina. The electrochemical reaction of with sodium was found to be reversible, while was found to decompose.
A Vaccinology Approach to the Identification and Characterization of Dermanyssus gallinae Candidate Protective Antigens for the Control of Poultry Red Mite Infestations (2019)

The poultry red mite (PRM), <i>Dermanyssus gallinae</i>, is a hematophagous ectoparasite considered as the major pest in the egg-laying industry. Its pesticide-based control is only partially successful and requires the development of new control interventions such as vaccines. In this study, we follow a vaccinology approach to identify PRM candidate protective antigens. Based on proteomic data from fed and unfed nymph and adult mites, we selected a novel PRM protein, calumenin (Deg-CALU), which is tested as a vaccine candidate on an on-hen trial. <i>Rhipicephalus</i> <i>microplus</i> Subolesin (Rhm-SUB) was chosen as a positive control. Deg-CALU and Rhm-SUB reduced the mite oviposition by 35 and 44%, respectively. These results support Deg-CALU and Rhm-SUB as candidate protective antigens for the PRM control.
ChemInform Abstract: SYNTHESIS OF TABTOXININE‐Δ‐LACTAM (1976)

Abstract Aus den N‐substituierten 3‐Methylen‐2‐piperidonen (Ia)‐(Ic) entstehen die Epoxide (II) und (III), während die Ozonolyse zu den Diketonen (IVa) und (IVb) führt.
An Alternative Method of Oligonucleotide Fingerprinting for Resolving Newcastle Disease Virus-Specific RNA Fragments (1989)

The technique of "RNA oligonucleotide fingerprinting" was adapted for the purpose of identifying genetic differences among strains of Newcastle disease virus (NDV). The specific method used for visualizing patterns of viral RNA fragments in two-dimensional polyacrylamide gels has several advantages over previously published procedures: It has low input radiation, high resolution, and low biohazard considerations. For demonstration purposes, the La Sota strain of NDV was fingerprinted. These initial results suggest that oligonucleotide mapping may provide an approach for correlating changes in the pathogenicity of NDV with the presence or absence of specific viral RNA sequences.
Angle of attack system (1983)

The development of systems for measuring model pitch and roll attitude in the National Transonic Facility (NTF) is discussed. The effort is divided between two approaches: (1) an inertial measurement that is an extrapolation of existing technology into a cryogenic environment, and (2) an optical technique based on a holographic angle sensor.
Anisotropic ferroelectric properties of epitaxially twinned Bi3.25La0.75Ti3O12 thin films grown with three different orientations (2002)

Epitaxially twinned (001)- , (118)- , and (104)-oriented La-substituted Bi4Ti3O12 (BLT) ferroelectric films have been grown by pulsed laser deposition on (001)- , (011)- , and (111)-oriented SrTiO3 single-crystal substrates, respectively, covered with SrRuO3. Well-defined (001)-oriented BLT films were grown at a substrate temperature as low as 600 °C. By x-ray diffraction characterization it has been found that the low-index three-dimensional epitaxial orientation relationship BLT(001)‖SrRuO3(001)‖SrTiO3(001); BLT[11̄0]‖SrRuO3[100]‖SrTiO3[100] is valid for all epitaxially twinned BLT thin films grown on SrRuO3-covered SrTiO3 substrates in spite of their different orientations. The (104)-oriented BLT films showed an about 1.5 times higher remanent polarization (2Pr=31.9 μC/cm2) than the (118)-oriented BLT films (2Pr=20.7 μC/cm2), while (001)-oriented BLT films revealed only a small polarization component (2Pr=1.1 μC/cm2), thus demonstrating the ferroelectric anisotropy.
Holophagae (2015)

Abstract Ho.lo.pha'gae. N.L. fem. n. Holophaga type genus of the type order Holophagales ; ‐ ae ending to designate a class; N.L. fem. pl. n. Holophagae the class of Holophagales . Taxonomic and Nomenclature Notes According to the List of Prokaryotic names with Standing in Nomenclature (LPSN), the taxonomic status of the class Holophagae is: correct name (last update, February 2025) * . LPSN classification: Bacteria / Pseudomonadati / Acidobacteriota / Holophagae The class Holophagae can also be recovered in the Genome Taxonomy Database (GTDB) as c__Holophagae (version v220) ** . GTDB classification: d__Bacteria / p__Acidobacteriota / c__Holophagae * Meier‐Kolthoff et al. ( 2022 ). Nucleic Acids Res , 50 , D801 – D807 ; DOI: 10.1093/nar/gkab902 ** Parks et al. ( 2022 ). Nucleic Acids Res , 50 , D785 – D794 ; DOI: 10.1093/nar/gkab776
Production volume rendering (2017)

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Engineering interface-type resistive switching in BiFeO3 thin film switches by Ti implantation of bottom electrodes (2015)

BiFeO3 based MIM structures with Ti-implanted Pt bottom electrodes and Au top electrodes have been fabricated on Sapphire substrates. The resulting metal-insulator-metal (MIM) structures show bipolar resistive switching without an electroforming process. It is evidenced that during the BiFeO3 thin film growth Ti diffuses into the BiFeO3 layer. The diffused Ti effectively traps and releases oxygen vacancies and consequently stabilizes the resistive switching in BiFeO3 MIM structures. Therefore, using Ti implantation of the bottom electrode, the retention performance can be greatly improved with increasing Ti fluence. For the used raster-scanned Ti implantation the lateral Ti distribution is not homogeneous enough and endurance slightly degrades with Ti fluence. The local resistive switching investigated by current sensing atomic force microscopy suggests the capability of down-scaling the resistive switching cell to one BiFeO3 grain size by local Ti implantation of the bottom electrode.
Long-Term Stability of PEG-Based Antifouling Surfaces in a Marine Environment (2016)

The work presented here concerns the use of polyethylene glycol (PEG) to reduce marine biofouling on ship hulls. The long-term stability of PEG towards degradation in a marine environment is reviewed, and the results of experiments designed to test the degradation of polyethylene glycol moieties are disclosed. The results show how the degradation of different polyethers can be followed, both in laboratory accelerated conditions and real life exposure by size exclusion chromatography (SEC) and nuclear magnetic resonance spectroscopy (NMR). Preliminary results indicate the influence of the chemical structure and the end-group on the degradation of different PEG-containing compounds in accelerated conditions, while showing very little degradation in real exposure tests in seawater after 3 months. Further experiments will be discussed involving long-term stability and degradation pathways involved in the degradation of PEG.
The Constituents of Schizandra chinensis Baill. X. The Structures of .GAMMA.-schizandrin and four new lignans,(-)-gomisins L1 and L2,(.+-.)-gomisin M1 and (+)-gomisin M2. (1982)

Four new dibenzocyclooctadiene lignans, named (-)-gomisins L1 (6) and L3 (7), (±)-gomisin M1 (8) and (+)-gomisin M2 (9), were isolated from the fruits of Schizandra chinensis BAILL. (Schizandraceae). Their absolute structures were elucidated by means of chemical and spectral studies. The stereostructure of γ-schizandrin (1, dl-form), the plane structure of which had already been suggested by Kochetkov et al. and Liu et al., was also elucidated on the basis of chemical and spectral studies.
Design Principles for Cation‐Mixed Sodium Solid Electrolytes (2021)

Abstract All‐solid‐state sodium‐ion batteries are highly promising for next generation grid energy storage with improved safety. Among the known sodium superionic conductors, the Na 3 PnS 4 family and the recently discovered Na 11 Sn 2 PnS 12 (Pn = P, Sb) have garnered major interest due to their extremely high ionic conductivities. In this work, comprehensive investigation of the Na 3 PnS 4 ‐Na 4 TtS 4 (Pn = P/As/Sb, Tt = Si/Ge/Sn) phase space of superionic conductors using density functional theory calculations, as well as AIMD simulations on the promising new Na 11 Sn 2 PnS 12 (Pn=P/As/Sb) structures are presented. Crucial design rules on the effect of cation mixing are extracted on relative phase stability, electrochemical stability, moisture stability, and ionic conductivity. In particular, it is shown that while larger cations can substantially improve the ionic conductivity and moisture stability in these structures, there is an inherent trade‐off in terms of electrochemical stability. Na 11 Sn 2 AsS 12 is also identified as a hitherto unexplored stable sodium superionic conductor with higher Na + conductivity and better moisture stability than the Na 11 Sn 2 PS 12 and Na 11 Sn 2 SbS 12 phases already reported experimentally.
Reasons symptomatic breast cancer patients delay seeking medical care (2019)

Journal of Unexplored Medical Data is an open access journal, which considers well-conducted medical science studies, including clinical trials, pilot studies, research reports, original articles, reviews and short communications in the field of medical science.