gebhart/patrepeval huggingface dataset:
Synthesis and Characterization of New Cationic Hexacoordinate Silanes (2000)

The reaction of N,N,N',N"-pentamethyldiethylenetriamine (pmdeta) with HSiCl3 and H2SiCl2 in dry CH2Cl2 affords the novel cationic intermolecular hexacoordinate silanes [pmdeta.HSiCl2]+Cl- (1) and [pmdeta.H2SiCl]+Cl(2), respectively. The addition of N,N,N',N',N"-pentaethyldiethylenetriamine (pedeta) to a solution of HSiCl3 in dry CH2Cl2 gives the redistribution product formulated as the salt [pedeta.H2SiCl]+Cl- (3) and SiC4. Treatment of H2SiCl2 with pedeta and N,N,N',N',N",N"'-hexamethyltriethylenetetramine (hmteta) produces [pedeta.H2SiCl]+Cl(3) and [hmteta.H2SiCl]+C1- (HCl) (4). In 4, the fourth amine is not bonded to silicon. Reactions of 2, 3, and 4 with NaBPh4 give the ion exchange products [pmdeta.H2SiC1]+BPh4- (5), [pedeta.H2SiCl]+BPh4- (6), and [hmteta.H2SiCl]+BPh4- (HCl) (7), respectively. The salts 1, 5, 6, and 7 were characterized by single-crystal X-ray diffraction analysis. Most notable is that the cations in 1, 5, 6, and 7 are slightly distorted octahedra in which two hydrogen atoms are at the trans positions. The reactions of 3 with tmeda and pmdeta afford the intermolecular ligand exchange products tmeda.H2SiCl2 and 2, respectively.
Bioavailability and Transformation of Highly Chlorinated Dibenzo-p-Dioxins and Dibenzofurans in Anaerobic Soils and Sediments (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBioavailability and Transformation of Highly Chlorinated Dibenzo-p-Dioxins and Dibenzofurans in Anaerobic Soils and SedimentsPeter. Adriaens, Quingzai. Fu, and Dunja. Grbic-GalicCite this: Environ. Sci. Technol. 1995, 29, 9, 2252–2260Publication Date (Print):September 1, 1995Publication History Published online1 May 2002Published inissue 1 September 1995https://pubs.acs.org/doi/10.1021/es00009a015https://doi.org/10.1021/es00009a015research-articleACS PublicationsRequest reuse permissionsArticle Views337Altmetric-Citations80LEARN 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
Risks of Exposure to Antimicrobial Resistant E. Coli Among Workers in Industrial Food Animal Production (2007)

ISEE-802 Objective: Modern food animal production methods have transformed conditions for both animals and farm workers. Increasingly and worldwide, poultry, cattle, and swine are raised in confinement and supplied feeds containing antimicrobial drugs, for increasing growth and lowering costs. Nontherapeutic antimicrobial use is known to increase risks of food borne infections by drug-resistant pathogens, but there are no data on these risks for farm workers in the Americas. This study tests the hypothesis that antimicrobial use in broiler poultry production increases risks of infection by antimicrobial-resistant pathogens among farm workers who contact live birds. Materials and Methods: We conducted a cross-sectional epidemiology study in a major broiler poultry producing region of the US. Workers and community referents were recruited using a convenience sample design. Stool samples and health surveys were collected from 16 poultry workers and 33 community referents. E. coli was cultured from stool samples and susceptibility to ampicillin, ciprofloxacin, ceftriaxone, gentamicin, nitrofurantoin, or tetracycline was determined for each isolate, using standard methods. We estimated the relative risk for carrying antibiotic-resistant E. coli among poultry workers compared with community referents. The odds of carrying drug-resistant bacteria, by work status, was tested by multiple logistic regression with adjustment for confounders. Results: Poultry workers had 32 times the odds of carrying gentamicin-resistant E. coli as compared to community referents. Poultry workers were also at significantly increased risk of carrying multidrug-resistant E. coli. Conclusions: Poultry workers are at significantly increased risk of carrying gentamicin- and multidrug-resistant E. coli. As gentamicin is the most widely used antimicrobial in poultry production, these results are not surprising.
Exploring Space – towards high-capacity inter-vehicular communications (2013)

This presentation discusses the question “Are there still research challenges in inter-vehicular communications”. The premise is that these may come from autonomous, or rather coordinated driving. I will start with a few results from an earlier project, Connect &amp; Drive, where a system for cooperative adaptive cruise control was researched, designed, and prototyped. We project that for coordinated driving, important challenges are in the area of reliable consensus for coordinated manoeuvres, and high-rate beaconing for increased situational awareness of vehicles. I show that current systems do not suffice for these challenges. In order to increase the scalability of inter-vehicular communications, I propose to explore spatial reuse, by using cheap large-scale antenna arrays and beamforming receivers. This way, a vehicle can be equipped with a large number of receivers, each receiving from a specific (dynamically reconfigurable) direction. Given this idea, I point at important research questions, and argue that for a good understanding, the use of good analytical performance models is of paramount importance.
Protection from experimental endotoxemia by a recombinant adeno-associated virus encoding interleukin 10 (2001)

The findings demonstrate that a modest dose of rAAVhIL10 administered in vivo provides long-term protection against LPS-induced endotoxic shock in a murine model. Thus, this vector may be useful for clinical applications requiring sustained IL-10 expression, for example in the treatment of several autoimmune diseases.
DIC-based failure analysis of high-strength continuous steel shear dowels for composite UHPFRC steel construction (2021)

Continuous composite dowel strips in reinforced concrete composite members allow effective force transmission of shear forces between steel web and concrete. The use of high-performance materials imposes new demands on the performance of such fasteners in terms of their load-bearing capacity and deformation capability. In order to study the behavior of puzzle and clothoid-shaped composite dowels made from S460ML high-strength steel in combination with Ultra High Performance Fiber Reinforced Concrete (UHPFRC), an experimental campaign was conducted. For this purpose, a simplified push-out test setup was developed and a number of 25 specimens were tested. The degree of the conventional reinforcement, the volume percentage of fiber reinforcement, the concrete cover and the shape and thickness of the composite dowels were varied. The test specimens were monitored with a high-resolution Digital Image Correlation (DIC) system in addition to conventional measuring techniques such as LVDTs and strain gauges. These optical measurements and their visualization gave new insights into the three dominant failure modes – i.e. concrete pry-out, vertical splitting, and steel shear-bending – and allowed to identify combined failure modes in detail. With an appropriate configuration, a semi-ductile behavior of shear dowels with high-performance steel and UHPFRC was generally reached. The additional use of adequate reinforcing bars, such as stirrups and transversal bars, was crucial to finally achieve full ductility. Based on the test results, recommendations were provided for the design of thin UHPFRC plates in combination with puzzle- and clothoid-shaped composite dowels. Depending on the configuration, yielding due to steel shear-bending occurred between 60 and 90% of the average maximum load, thus demonstrating full utilization of the composite dowels. The experimental study provided valuable insights into the load-bearing behavior of composite dowels in combination with thin UHPFRC panels and complements the state-of-the-art for the use of this connection technique.
Toward understanding the S2-S3 transition in the Kok cycle of Photosystem II: Lessons from Sr-substituted structure (2021)

Understanding the water oxidation mechanism in Photosystem II (PSII) stimulates the design of biomimetic artificial systems that can convert solar energy into hydrogen fuel efficiently. The Sr2+-substituted PSII is active but slower than with the native Ca2+ containing PSII as an oxygen evolving catalyst. Here, we use Density Functional Theory (DFT) to compare the energetics of the S2 to S3 transition in the Mn4O5Ca2+ and Mn4O5Sr2+ clusters. The calculations show that deprotonation of the water bound to Ca2+ (W3), required for the S2 to S3 transition, is energetically more favorable in Mn4O5Ca2+ than Mn4O5Sr2+. In addition, we have calculated the pKa of the water that bridges Mn4 and the Ca2+/Sr2+ in the S2 state using continuum electrostatics. The calculations show that the pKa is higher by 4 pH units in the Mn4O5Sr2+cluster.
FUNDAMENTAL STUDY OF SOUND ABSORPTION FOR COMFORTABLE SOUND ENVIRONMENTS IN RESIDENCES (2011)

The purpose of this study is to clarify the relationship between comfortable sound environments inside residences and the average sound absorption coefficient of an individual room. To accomplish this, psychological experiments were conducted using actual scale room models, and the acoustic characteristics of several rooms in actual residences were investigated. As a result of these experiments and investigations, the following points have been clarified: 1) The average sound absorption coefficient affects the comfortable sound environment of residences. 2) The psychological items affected by the average sound absorption coefficient are “sense of silence”, “sense of reverberation”, “feeling of serenity”, “sense of quality” and “user preferences”. 3) Higher average sound absorption coefficients reduce the “sense of reverberation” and increase the values of the other psychological items.
Surface Structure and Stereocomplex Formation of Enantiomeric Polylactide Blends Using Poly(dimethyl siloxane) as a Probe Polymer (2006)

Abstract In the stereocomplex between enantiomeric poly( l ‐lactide) ( l ‐PLA) and poly( d ‐lactide), crystallites formed as a result of stereocomplexation, equimolar l ‐ and d ‐lactide unit sequences are packed side by side. The stereocomplex exhibits a melting temperature higher by about 50 °C than that of each homopolymer. In this study, we attempt to obtain further insight into the stereocomplex‐induced surface structure of enantiomeric PLA blend films. The design of the blend systems is based on principles of surface segregation of multicomponent polymeric systems with a low surface energy, triblock copolymer ( l ‐PLA‐ b ‐PDMS‐ b ‐ l ‐PLA) of l ‐PLA and poly‐(dimethyl siloxane). ( l ‐PLA‐ b ‐PDMS‐ b ‐ l ‐PLA/ l ‐PLA) blend films showed the surface segregation of PDMS, regardless of blend composition while the surface composition of PDMS in the ( l ‐PLA‐ b ‐PDMS‐ b ‐ l ‐PLA/ d ‐PLA) blend films was strongly depended on blend composition or a degree of complexation. These results are likely due to strong interaction between d ‐ and l ‐lactide unit sequences, which prevents the surface segregation of PDMS.
Si Codoped CuAlS2:Mn Red Phosphor for White LEDs (2008)

A novel red phosphor of CuAlS2:Mn for white LEDs has been successfully prepared by solid-state-reaction method using an opened-tubular-furnace. It has been found that both photoluminescence (PL) intensity and thermal stability are improved by Si-codoping. The currently obtained PL stimulus value Y under 380-nm-excitation is about 67 % compared to La2O2S:Eu. The PL intensity at 100°C maintains 95 % of that at a room temperature.
FIB-induced damage in graphene electrodes for piezoelectric resonators (2018)

International audience
GENOME HOMOLOGIES AMONG GEMINIVIRUSES INFECTING VIGNA, CASSAVA, ACALYPHA, CROTON AND VERNONIA (1996)

Acalypha indica, Croton sparsiflorus and Vernonia cinerea, that grow around Vigna radiata and Vigna mungo fields and exhibit viral symptoms, were tested whether they serve as the reservoirs of Vigna yellow mosaic virus (YMV), a geminivirus. DNA A of Indian cassava mosaic virus (ICMV) was used as a general probe and DNA B of ICMV and YMV were used as specific probe, ICMV DNA A hybridized intensely to DNA from infected V. radiata, V. mungo, A. indica, C. sparsiflorus and V. cinerea, indicating that all these plants harboured whitefly-transmitted geminiviruses. The presence of single-stranded virion DNA and double-stranded replicative form in these plants was characterized by non-denaturing Southern analysis and by nuclease-sensitivity analyses, DNA B of ICMV, a specific probe, hybridized only to DNA from infected cassava and Acalypha suggesting that the geminiviruses that infected cassava and Acalypha are related. DNA B of YMV hybridized only to the DNA from infected V. mungo and V. radiata but not to the DNA of any of the weeds. Our results show that geminiviruses that infect the weeds A. indica, C. sparsiflorus and V. cinerea are not related to Vigna YMV and do not serve as reservoirs of V. mungo YMV.
Applicability of White-Balancing Algorithms to Restoring Faded Colour Slides: An Empirical Evaluation (2008)

In this paper we investigated the applicability of commonly used white-balancing algorithms to restoring faded photographic colour slides. We have used three sets of synthetic data that simulated colour damage in Kodak Ektachrome slides, as well as three sets of real digitized faded Kodak Ektachrome slides. We have restored all the data sets using nine different algorithms and evaluated restoration results using human participants. In addition, we have conducted an evaluation of the restored synthetic data using a distance metric .We found that while some algorithms provided acceptable restoration of synthetic images, none were found by the human participants to adequately restore real-world data. In addition, we found no correlation between human-based and metric-based evaluation results on 2 out of 3 synthetic data sets. Our results form a strong indication that commonly used white-balancing methods are inadequate for restoring faded colour slides and that simple colour distance metrics do not necessarily correspond to human perception of colour quality.
Circadian rhythm changes in core temperature over the menstrual cycle: method for noninvasive monitoring (2000)

The purpose of this study was to determine whether core temperature (T(c)) telemetry could be used in ambulatory women to track changes in the circadian T(c) rhythm during different phases of the menstrual cycle and, more specifically, to detect impending ovulation. T(c) was measured in four women who ingested a series of disposable temperature sensors. Data were collected each minute for 2-7 days and analyzed in 36-h segments by automated cosinor analysis to determine the mesor (mean temperature), amplitude, period, acrophase (time of peak temperature), and predicted circadian minimum core temperature (T(c-min)) for each cycle. The T(c) mesor was higher (P < or = 0.001) in the luteal (L) phase (37.39 +/-0.13 degrees C) and lower in the preovulatory (P) phase (36.91 +/-0.11 degrees C) compared with the follicular (F) phase (37.08 +/-0.13 degrees C). The predicted T(c-min) was also greater in L (37.06 +/- 0.14 degrees C) than in menses (M; 36.69 +/- 0.13 degrees C), F (36. 6 +/- 0.16 degrees C), and P (36.38 +/- 0.08 degrees C) (P < or = 0. 0001). During P, the predicted T(c-min) was significantly decreased compared with M and F (P < or = 0.0001). The amplitude of the T(c) rhythm was significantly reduced in L compared with all other phases (P < or = 0.005). Neither the period nor acrophase was affected by menstrual cycle phase in ambulatory subjects. The use of an ingestible temperature sensor in conjunction with fast and accurate cosinor analysis provides a noninvasive method to mark menstrual phases, including the critical preovulatory period.
Bone cement implantation syndrome in cemented hip hemiarthroplasty—a persistent risk (2021)

BCIS is frequently observed and in some cases severe complication. The therapy is exclusively symptomatic; identifying preventional measures might reduce the occurrence of BCIS.
CCLIX.—A synthesis of pyrylium salts of anthocyanidin type. Part IX. Some hydroxyflavylium salts (1926)

A. Robertson and R. Robinson, J. Chem. Soc., 1926, 129, 1951 DOI: 10.1039/JR9262901951
Experiments in Physical Optics (1970)

"Experiments in Physical Optics." Optica Acta: International Journal of Optics, 17(12), p. 952
Emulsion-Templated Fully Reversible Protein-in-Oil Gels (2006)

We have developed a new method allowing us to transform low-viscous apolar fluids into elastic solids with a shear elastic modulus of the order of 10(3)-10(5) Pa. The elasticity of the elastic solid is provided by a percolating 3D network of proteins, which are originally adsorbed at the interface of an oil-in-water emulsion template. By cross-linking the protein films at the interface and upon removal of water, the template is driven into a structure resembling a dry foam where the protein interfaces constitute the walls of the foam and the air is replaced by oil confined within polyhedral, closely packed droplets. Depending on the density of the protein network, the final material consists of chemically unmodified oil in a proportion of 95 to 99.9%. The physical properties of the elastic solid obtained can be tuned by changing either the average diameter size of the emulsion template or the cross-linking process of the protein film. However, the original low-viscosity emulsion can be restored by simply rehydrating the solidified fluid. Therefore, the present procedure offers an appealing strategy to build up solid properties for hydrophobic liquids while preserving the low viscosity and ease of manufacturing.
Dynamic equilibrium model for stable nano- and micro-bubbles partly covered with hydrophobic material (2016)

In the dynamic equilibrium model, a bubble is only partly covered with hydrophobic material in contrast to the skin model that a bubble is completely covered with organic material. On the surface of the hydrophobic material in water, gas is highly concentrated due to the presence of depletion layer. Then, gas diffuses into a bubble near the peripheral edge of the hydrophobic material, which may balance with the gas diffusion out of a bubble from the other part of the uncovered bubble surface due to the higher internal gas pressure than the partial pressure of gas dissolved in the liquid water by the Laplace pressure. In the present study, not only the condition of the mass balance but also that of stability is numerically calculated. The results have indicated that a nanobubble could be stable when the fraction of the surface coverage by the hydrophobic material is more than 0.5 in water both supersaturated and under-saturated with gas (air). In slightly degassed water, a microbubble could be stabilized when the fraction of the surface coverage is on the order of 10-4 or less. These bubbles could play an important role in underwater acoustics as well as in acoustic cavitation.
Cost-Effectiveness of Thrombolysis Within 4.5 Hours of Acute Ischemic Stroke (2013)

Intravenous tPA within 4.5 hours represents a cost-effective intervention for acute ischemic stroke.
Pressure-specifying Sensory Device: Quantitative Sensory Measurement in the Oral Cavity and Oropharynx of Normal Adults (2003)

We conducted a study to quantitatively determine the pressure perception thresholds in the oral cavity and oropharynx of a normal population with the Pressure-Specifying Sensory Device (PSSD). The PSSD measured pressure perception thresholds for both static and moving one- and two-point discrimination modalities at a variety of sites in the oral cavity and oropharynx as well as in the forearm of 11 adults. We also evaluated the ability of the PSSD to enhance sensory discrimination in four of these subjects by the process of sensory re-education for 11 days over a 15-day period. We found that the buccal mucosa and the tongue tip were the most sensitive sites in the oral cavity and oropharynx and that the floor of the mouth and the soft palate were the least sensitive. Sensory discrimination in the oral cavity was enhanced in all four subjects who underwent sensory re-education, although it returned to baseline levels over time after re-education was discontinued. The degree of intra- and intertester variability was minimal. Our data can be used as an aid in the development of techniques to surgically restore sensation in the oral cavity and oropharynx.
Positronium Trapping in Porous Solids: Means and Limitations for Structural Studies (2005)

Positron annihilation techniques are used for the structural investigation of solids but the interpretation of results in grainy and porous media is still unclear. A unique picture can be obtained assuming that the dominant process is Ps trapping in competing "extended free volume" sites. In samples with a large amount of free volumes near-saturation Ps trapping will rule the lifetime pattern, and very long lifetimes of over 100 ns might arise from o-Ps trapped in mesopores. It is shown that lifetime parameters must be corrected for the 3/2 counting efficiency ratio. The results demonstrate the high sensitivity of Ps to mesopores in zeolites but also that Ps-trapping poses limitations on the applicability of lifetime to structural investigation in porous systems. The evolution of the lifetime spectra upon changes in the sample and measuring conditions should be considered in a complex way, observing not only changes in some selected components but in the whole lifetime pattern simultaneously.
Leveraging Pseudomonas Stress Response Mechanisms for Industrial Applications (2021)

Members of the genus <i>Pseudomonas</i> are metabolically versatile and capable of adapting to a wide variety of environments. Stress physiology of <i>Pseudomonas</i> strains has been extensively studied because of their biotechnological potential in agriculture as well as their medical importance with regards to pathogenicity and antibiotic resistance. This versatility and scientific relevance led to a substantial amount of information regarding the stress response of a diverse set of species such as <i>Pseudomonas chlororaphis</i>, <i>P. fluorescens</i>, <i>P. putida</i>, <i>P. aeruginosa</i>, and <i>P. syringae</i>. In this review, environmental and industrial stressors including desiccation, heat, and cold stress, are cataloged along with their corresponding mechanisms of survival in <i>Pseudomonas</i>. Mechanisms of survival are grouped by the type of inducing stress with a focus on adaptations such as synthesis of protective substances, biofilm formation, entering a non-culturable state, enlisting chaperones, transcription and translation regulation, and altering membrane composition. The strategies <i>Pseudomonas</i> strains utilize for survival can be leveraged during the development of beneficial strains to increase viability and product efficacy.