gebhart/patrepeval huggingface dataset:
Interaction of a partially fluorinated alcohol (F8H11OH) with biomembrane constituents in two-component monolayers (2011)

The interaction of (perfluorooctyl)undecanol (F8H11OH) with dipalmitoylphosphatidylcholine (DPPC), dipalmitoylphosphatidylglycerol (DPPG), and cholesterol (Ch) has been investigated in two-component monolayers at the air–water interface. The thermodynamic properties and phase behavior of the monolayers have been systematically elucidated employing isotherm measurements and several methods at the mesoscopic and microscopic scales. Addition of F8H11OH induces strong condensation in DPPC and DPPG monolayers. The magnitude for the Gibbs free energy and the interaction parameter between the two components for the DPPC/F8H11OH and DPPG/F8H11OH systems are twice as large as those for the Ch/F8H11OH system. Judging from the evidence that disordered/ordered transition pressures and collapse pressures for the binary monolayers change with molar fraction of F8H11OH, F8H11OH was (partially) miscible with all the compounds investigated. The miscibility of the two components in the monolayer is also supported by the in situ (Brewster angle and fluorescence microscopies) and ex situ (atomic force microscopy after transfer on a mica plate) morphological aspects. The present study reports firstly on the interaction between Ch and the fluorinated amphiphile by simply employing the monolayer technique. The molecular function of Ch in pulmonary surfactants and lipid rafts is now extensively investigated. To our knowledge, Ch does not interact strongly with lipid components in biomembranes. However, this study indicates that the partially fluorinated amphiphile has some affinity for Ch. This study provides a fundamental insight into the molecular function of biomembrane components and support for biomedical use of fluorinated materials.
Ceramics in Nanotech Revolution (2004)

‘Nanotechnology’, called the materials technology of 21 st century has also entered the field of ceramics. Nanoceramic systems, their synthesis, characterization and the changed properties in view of chemistry of nanoparticles are discussed along with the applications of nanoceramics. In the end the major challenges being encountered like scaling‐up the synthesis of nanoceramics for development of industrial scale methods are discussed
Resistência ao impacto de compósitos de poliéster reforçados com fibras de vidro/sisal (2011)

Atualmente, a necessidade de desenvolver e comercializar materiais compositos reforcados com fibras vegetais tem crescido, devido a questoes relacionadas ao impacto ambiental e ao desenvolvimento sustentavel. Desse modo, as empresas passaram a investir na busca de novas tecnologias para o uso desses materiais e a considerar tambem a variavel ambiental em suas estrategias de producao. No Brasil, mesmo com a grande disponibilidade de fibras e de residuos agroindustriais ainda nao se tem ampla utilizacao ou aplicacao destes. Apesar do interesse nesta area ter aumentado, por enquanto, predominam as fibras de vidro. Um fator importante que favorece o emprego de fibras vegetais como insumo renovavel e a crescente perspectiva de economia de energia por meio da reducao de peso dos componentes, bem como os aspectos ligados a recuperacao das materias-primas e reaproveitamento dos materiais no final do ciclo de vida. Na realidade a industria automotiva comecou a usar compositos com fibras vegetais por razoes tecnicas e comerciais. As fibras vegetais aparecem como uma valiosa alternativa aos materiais sinteticos e sua utilizacao tem crescido nos ultimos anos. As fibras vegetais apresentam ainda um potencial de reducao do peso do veiculo em ate 40% quando comparado as fibras de vidro, que estao presentes na maioria dos compositos da industria automotiva. No entanto, deve-se levar em consideracao um aspecto importante ao desempenho mecânico do composito reforcado com fibra vegetal, a adesao entre fibra e matriz polimerica. As propriedades mecânicas de maior interesse sao: resistencia a tracao, flexao e impacto. Portanto o objetivo deste trabalho foi avaliar a resistencia ao impacto dos compositos de poliester com fibras de sisal e fibras de vidro na forma de tecidos.
Bioconjugate Platform for Iterative Backbone N-Methylation of Peptides (2022)

<i>N</i>-methylation of peptide backbones has often been utilized as a strategy towards the development of peptidic drugs. However, difficulties in the chemical synthesis, high cost of enantiopure <i>N</i>-methyl building blocks, and subsequent coupling inefficiencies have hampered larger-scale medicinal chemical efforts. Here, we present a chemoenzymatic strategy for backbone <i>N</i>-methylation by bioconjugation of peptides of interest to the catalytic scaffold of a borosin-type methyltransferase. Crystal structures of a substrate tolerant enzyme from <i>Mycena rosella</i> guided the design of a decoupled catalytic scaffold that can be linked via a heterobifunctional crosslinker to any peptide substrate of choice. Peptides linked to the scaffold, including those with non-proteinogenic residues, show robust backbone <i>N</i>-methylation. Various crosslinking strategies were tested to facilitate substrate disassembly, which enabled a reversible bioconjugation approach that efficiently released modified peptide. Our results provide general framework for the backbone <i>N</i>-methylation on any peptide of interest and may facilitate the production of large libraries of <i>N</i>-methylated peptides.
Sub-100-nm pattern fabrication using LB resist and e-beam or synchrotron radiation excited plasma (1999)

For fine pattern fabrication using e-beam lithography, the resist film thickness must be decreased, and therefore, the plasma etching process must be reformed. We have proposed the use of Electron Beam Excited Plasma (EBEP) and Synchrotron Radiation Excited Plasma (SREP) etching techniques for fine pattern etching. Our EBEP reactor uses a 1 micrometers thick polyimide interface film, which isolates the reactor from the e-beam source but allows electron transmission at the same time. The transmission of high energy electrons through the interface film cause ablation of the interface film and deposition of carbonaceous film on the substrate in the reactor. From the study of this phenomenon in Ar atmosphere, it was found that the ablated species are charged with either polarity. However, a pronounced and non-uniform deposition was observed for a particular substrate holder, which caused non-uniform electric field near the substrate. Thus, with an improved substrate holder, silicon etching was realized in CF<SUB>4</SUB> gas. This etching could be observed only under negative bias condition, as seen earlier for SREP etching. Sub 100 nm line and space patterns were successfully etched with SREP and EBEP etching techniques using ultra thin Langmuir BLodgett stearic acid resist.
Laboratory Studies of the Corrosion of Nickel-Based Alloys by Pure Calcium Sulfate û Influence of Environmental Factors (1998)

Several nickel-based alloys and for comparison purposes, iron- and cobalt-based alloys have been coated with 8--10{micro}m Analar calcium sulfate and exposed in three types of external environments at a temperature of 850 C. Results from experiments in which the coated coupons were totally immersed in lightly compacted Analar-grade calcium sulfate powder and exposed in air for 144 hours showed that they underwent sulfidation-oxidation corrosion. Control experiments with no coating resulted in the formation of oxides alone, confirming that the presence of a compact calcium sulfate overlay was crucial to the development of the conditions necessary to cause sulfidation-oxidation corrosion. Relative extents of corrosion for the alloys showed distinct similarities with those observed in pilot scale coal-fired fluidized bed combustion systems. This fact together with the observation that corrosion morphologies for the alloys tested were similar to those observed in operating systems, demonstrates that the laboratory test method developed in this work is a suitable screening test for alloys with suitable mechanical properties for this industrial application. Subsequent sets of experiments at the same temperature, in which coated coupon surfaces were exposed to a synthetic flue gas containing 0.2% by volume sulfur dioxide for 144 hours, gave results which showed thatmore » sulfur exhaustion from the coating did not occur in the air environment. Thus, corrosion morphologies and extents of corrosion for the two different environments were effectively the same. The effect of substoichiometric conditions on the corrosion of the coated alloys was investigated by immersing the coupons in a calcium sulfate covered with finely divided carbon to give a sulfate to carbon mole ratio of 1:2. After 24 hours exposure at 85O C, significant corrosion of the nickel-based alloys occurred. The greater degree of corrosive attack can be attributed to the high partial pressures of sulfur vapor which arises from the reaction between calcium sulfate and carbon.« less
Complementary structure for designer localized surface plasmons (2015)

Magnetic localized surface plasmons (LSPs) supported on metallic structures corrugated by very long and curved grooves have been recently proposed and demonstrated on an extremely thin metallic spiral structure (MSS) in the microwave regime. However, the mode profile for the magnetic LSPs was demonstrated by measuring only the electric field, not the magnetic field. Here, based on Babinet's principle, we propose a Babinet-inverted, or complementary MSS whose electric/magnetic mode profiles match the magnetic/electric mode profiles of MSS. This complementarity of mode profiles allows mapping the magnetic field distribution of magnetic LSP mode profile on MSS by measuring the electric field distribution of the corresponding mode on complementary MSS. Experiment at microwave frequencies also demonstrate the use of complementary MSS in sensing refractive-index change in the environment.
Sydenham's Chorea-Reply (1995)

<h3>In Reply.</h3> —Because of the potential for controversy about the utility of Sydenham's chorea as an etiologic model for childhood-onset obsessive-compulsive disorder and Gilles de la Tourette's syndrome, I was surprised and pleased that the concerns raised did not address this issue, but rather the details of the case report. I appreciate the careful consideration given to the article by Dr Jeret and Dr Jaffe, and I also appreciate the opportunity to clarify the Grand Rounds presentation. As pointed out by Jeret, the EEG findings in the case report were condensed in a confusing fashion. The pertinent portion of the original EEG report reads as follows: "mildly abnormal and consistent with Sydenham's chorea" because of the presence (during wakefulness) of "a background consisting of an irregular rhythm bilaterally which has a maximum frequency of 9 Hz; intermixed, there are many slow waves of 4-5 Hz frequency and 20-40 microvolts in
Lithium‐Tellurium Exchange: A New Entry to Organolithium Compounds (1987)

Compounds of the type Rli , with R PhC°C, PhCH 2 Ph, CH 2  CHCH 2 , alkyl, Me 3 SiCH 2 , PhCH 2 OCH 2 , etc., can be generated in an indirect way by the route shown below. In a one‐pot procedure, the tellurides are formed directly from alkyl halides and tellurolates RTeLi. The procedure particularly valuable when conventional lithium‐halogen exchange is not possible. equation image
Single-step, chromogenic Limulus amebocyte lysate assay for endotoxin (1989)

A new reagent for the chromogenic Limulus amebocyte lysate (LAL) assay is described. LAL was formulated for optimal performance in either an endpoint procedure or a kinetic procedure with the chromogenic substrate, buffer, and LAL components colyophilized as a single reagent. The kinetic chromogenic method required an incubating microplate reader coupled to a computer for collection and analysis of data. The kinetic method had a longer incubation time than the endpoint method and spanned a range of over 3 orders of magnitude compared with the 1-order-of-magnitude range of the endpoint assay. The kinetic method was less subject to operator error, since readings were continuous and automatic. The endpoint test was more operator intensive, requiring both addition of acetic acid to stop the reaction and transfer of the sample to the reading device. A single-step chromogenic reagent was also prepared without lyophilization by mixing reconstituted gel clot LAL with a buffer and a chromogenic substrate. The reagent prepared in this manner performed as well as the colyophilized agent.
Obliterative (Constrictive) Bronchiolitis (2012)

Obliterative bronchiolitis (OB) (formerly termed bronchiolitis obliterans), is a rare fibrotic disorder involving terminal and respiratory bronchioles. The term constrictive bronchiolitis is synonymous with OB. Clinically, OB is characterized by progressive (often fatal) airflow obstruction, the absence of parenchymal infiltrates on chest radiographs, a mosaic pattern of perfusion on high-resolution computed tomographic scan, poor responsiveness to therapy, and high mortality rates. Most cases of OB occur in the context of a specific risk factor. Currently, most cases of OB occur in lung transplant recipients with chronic allograft rejection or hematopoietic stem cell transplant (HSCT) recipients with graft versus host disease (GVHD). Other causes of OB include connective tissue disease (CTD) (particularly rheumatoid arthritis); lower respiratory tract infections; inhalation injury; exposure or inhalation of toxic fumes, metals, dusts, particulate matter, or pollutants; occupational exposures; drug reactions; consumption of uncooked leaves of Sauropus androgynus; chronic hypersensitivity pneumonia; diffuse neuroendocrine cell hyperplasia; miscellaneous. When no cause is identified, the term cryptogenic obliterative bronchiolitis is used. This review discusses the salient clinical, radiographic, and histological features of OB and presents a management approach.
Review: Current Directions in Computer Music Research, by Max V. Mathews and John Pierce (1990)

Book Review| October 01 1990 Review: Current Directions in Computer Music Research, by Max V. Mathews and John Pierce Current Directions in Computer Music ResearchMax V. MathewsJohn Pierce Xavier Serra Xavier Serra Search for other works by this author on: This Site PubMed Google Scholar Music Perception (1990) 8 (1): 107–110. https://doi.org/10.2307/40285488 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation Xavier Serra; Review: Current Directions in Computer Music Research, by Max V. Mathews and John Pierce. Music Perception 1 October 1990; 8 (1): 107–110. doi: https://doi.org/10.2307/40285488 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentMusic Perception Search This content is only available via PDF. Article PDF first page preview Close Modal You do not currently have access to this content.
On the Formation of Pyrophosphate from Quinol Phosphates in Dimethylformamide Solution (1964)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOn the Formation of Pyrophosphate from Quinol Phosphates in Dimethylformamide SolutionAviva. Lapidot and David. SamuelCite this: J. Am. Chem. Soc. 1964, 86, 9, 1886–1887Publication Date (Print):May 5, 1964Publication History Published online1 May 2002Published inissue 5 May 1964https://pubs.acs.org/doi/10.1021/ja01063a071https://doi.org/10.1021/ja01063a071research-articleACS PublicationsRequest reuse permissionsArticle Views40Altmetric-Citations7LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Design of Wearable Power Assist Wear for Low Back Support Using Pneumatic Actuators (2013)

This research focuses on developing a safe, lightweight, power assist device that can be worn by people during lifting or static holding tasks to prevent them from experiencing Low Back Pain (LBP). In consideration of their flexibility, light weight, and large force to weight ratio, two types of pneumatic actuators are employed in assisting low back movement for their safety and comfort. Actuator A is an elongation-type pneumatic rubber artificial muscle that is installed in the outer layer of the garment. Its two ends are fixed on the shoulders and thighs. It can output contractile force, assisting the erector spinae muscles in the same direction. Compared to McKibben-type pneumatic rubber artificial muscle, the elongation type has a larger contraction rate. Actuator B is a layer-type of pneumatic actuator; it is composed of two balloons, and it is installed in the inner layer of the garment. By taking into account the biomechanic structure of the human spine, this device can provide support in two ways. Actuator A acts as an external muscle power generators to reduce the force requirement for the erector spinae muscles. As actuator B acts as a moment arm of the contractile force generated by actuator A, it will increase the effective amount of torque. The device can be worn directly on the body like normal clothing. Because there is no rigid exoskeleton frame structure, it is lightweight and user friendly. The system’s Inertial Measurement Unit (IMU), composed of accelerometer sensors and gyro sensors to measure the human motion signals, can monitor the angles of the human body in real-time mode. By measuring the EMG signal of the human erector spinae muscles, the assistance effectiveness of the proposed device has been proven through experiments.
Three modes of asexual reproduction in the mossOctoblepharum albidum (2003)

Populations of Octoblepharum albidum growing in very moist and shaded habitats were found to have three kinds of asexual reproduction. First, the production of foliar gemmae along the upper half of leaf margins. Second, the production of protonema gemmae on protonemata originated from foliar gemmae. Third, the production of buds and new shoots at leaf tips. The formation of new shoots is further repeated at the leaf tips of the new shoots, giving the plant the character of a 'walking moss'.
P‐183: Development of a High‐Brightness Dual‐Lamp Projector (2011)

Abstract A projector has been developed that can display distinct pictures even in bright, spacious places. Two lamps are provided in a unique optical system to assure the brightness of 7,000 lumens and the high contrast ratio of 2,000 to 1, which are both the highest in their class [1].
New insights into the physics of inertial microfluidics in curved microchannels. I. Relaxing the fixed inflection point assumption (2019)

Inertial microfluidics represents a powerful new tool for accurately positioning cells and microparticles within fluids for a variety of biomedical, clinical, and industrial applications. In spite of enormous advancements in the science and design of these devices, particularly in curved microfluidic channels, contradictory experimental results have confounded researchers and limited progress. Thus, at present, a complete theory which describes the underlying physics is lacking. We propose that this bottleneck is due to one simple mistaken assumption-the locations of inflection points of the Dean velocity profile in curved microchannels are not fixed, but can actually shift with the flow rate. Herein, we propose that the dynamic distance (<i>δ</i>) between the real equilibrium positions and their nearest inflection points can clearly explain several (previously) unexplained phenomena in inertial microfluidic systems. More interestingly, we found that this parameter, <i>δ</i>, is a function of several geometric and operational parameters, all of which are investigated (in detail) here with a series of experiments and simulations of different spiral microchannels. This key piece of understanding is expected to open the door for researchers to develop new and more effective inertial microfluidic designs.
Disc diffusion test for the determination of semi-quantitative substrate profiles of β-lactamases (1986)

The incorporation of beta-lactamases from crude, cell-free lysates incorporated into agar plates used for antibiotic sensitivity testing with sensitivity discs results in a characteristic decrease in the inhibition zones. The degree of zone reduction for a particular antibiotic depends on the substrate specificity of the enzyme involved and the concentration of the enzyme in the agar. By using this technique a distinction can be made between cephalosporinases, penicillinases and broad-spectrum enzymes. In a number of cases, the identification of the enzyme subclass is possible, provided that the relevant penicillin and cephalosporin discs are included in the test. For the elucidation of substrate profiles for routine and epidemiological purposes this method can replace other, more elaborate techniques, such as the iodometric, spectrophotometric and acidimetric methods. An analysis by this method is presented for 126, unrelated, consecutive clinical isolates.
Introduction to atomic frequency standards (2009)

The fundamental precision of atomic timekeeping is unequaled in any other measurement methodology. Atomic frequency standards provide the ultimate source of accuracy and stability for all modern communications, navigation, and timekeeping systems. State-of-the-art atomic clocks test the frontiers of theoretical and experimental information theory, atomic physics, and cosmology. Practical implementations of atomic clocks range from commodity rubidium oscillators, smaller than a sandwich and accurate to parts in 1011, to one-of-a-kind laboratory-scale optical clocks, manned by teams of scientists and achieving accuracies now measured in parts in 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">17</sup> .
ChemInform Abstract: STEAROYL‐METHANSULFONAT, EIN GEMISCHTES ANHYDRID AUS EINEM ISOPROPENYLESTER (1973)

Abstract Isopropenylstearat (I) und Methansulfonsäure (II) ergeben das gemischte Anhydrid (III).