gebhart/patrepeval huggingface dataset:
Restoration of thermal images distorted by the atmosphere, based on measured and theoretical atmospheric modulation transfer function (1994)

Restoration of thermal images distorted by the atmosphere is presented. The method is based on atmospheric MTF analysis, both theoretical and experimental. Thermal IR atmospheric MTF measurements performed simultaneously in both atmospheric IR windows (3- to 5- and 8- to 12-μm wavelengths) are also presented. The MTFs were evaluated via point spread function measurements, under various meteorological conditions and different SNRs. Results are analyzed and shown to be in very good agreement with theoretical predictions.
Determination of methyl isocyanate in air by fluorimetry (1999)

The fluorimetric determination of methyl isocyanate in air is described. Methyl isocyanate in air was absorbed with dimethyl sulfoxide and hydrolyzed to form methylamine. Methylamine was reacted with acetylacetone and formaldehyde in pH 5.6 HOAc–NaOAc buffer solution to form N-methyl-2,6-dimethyl-3,5-diacetyl- 1,4-dihydropyridine, which is a fluorescent substance. The measurement of relative fluorescence intensity was carried out at 474 nm with excitation at 404 nm. Effects of pH, heating time and foreign ions on the determination of methyl isocyanate were examined. The relationship between fluorescence intensity and concentration of methyl isocyanate was linear in the range 0.00–0.80 µg ml–1. The linear regression equation was C = 0.001 I + 0.0092, with a linear regression correlation coefficient of 0.9994. The recovery was 98.3–104.5% and the relative standard deviation was 1.5%. The method is rapid, simple and highly sensitive, and can be used for the determination of methyl isocyanate in air. The results obtained agreed with those of an extraction-photometric method.
Spark-eroded particles: Influence of processing parameters (2004)

Ni particles were prepared by spark erosion in a fixed-gap apparatus, and in the usual “shaker-pot” assembly, in an investigation of the influence of various processing parameters on the particles’ properties. The sizes of the particles were studied as functions of spark energies ranging from 10 μJ to 1 J, and a scaling relation derived from a simple model was verified. Several different static and rotating electrode configurations were compared with respect to their suitability for producing significant yields of small particles. The advantages of stirring the dielectric with the fixed-gap apparatus and of rotating the electrodes were demonstrated. Water, kerosene, and liquid argon and nitrogen were used as dielectric liquids. When compounds were formed, the reaction with the dielectric proceeded inversely with particle size. Spark erosion in kerosene at low spark energies, followed by annealing, proved to be an effective method to produce fine nickel particles.
Computer-Aided Video Exposure Monitoring (2000)

A computer-aided video exposure monitoring system was used to record exposure information. The system comprised a handheld camcorder, portable video cassette recorder, radio-telemetry transmitter/receiver, and handheld or notebook computers for remote data logging, photoionization gas/vapor detectors (PIDs), and a personal aerosol monitor. The following workplaces were surveyed using the system: dry cleaning establishments--monitoring tetrachoroethylene in the air and in breath; printing works--monitoring white spirit type solvent; tire manufacturing factory--monitoring rubber fume; and a slate quarry--monitoring respirable dust and quartz. The system based on the handheld computer, in particular, simplified the data acquisition process compared with earlier systems in use by our laboratory. The equipment is more compact and easier to operate, and allows more accurate calibration of the instrument reading on the video image. Although a variety of data display formats are possible, the best format for videos intended for educational and training purposes was the review-preview chart superimposed on the video image of the work process. Recommendations for reducing exposure by engineering or by modifying work practice were possible through use of the video exposure system in the dry cleaning and tire manufacturing applications. The slate quarry work illustrated how the technique can be used to test ventilation configurations quickly to see their effect on the worker's personal exposure.
Ethoxyboratabenzene Zirconium Complexes:  Catalysts for α-Olefin Production (1997)

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTEthoxyboratabenzene Zirconium Complexes: Catalysts for α-Olefin ProductionJonathan S. Rogers, Guillermo C. Bazan, and Caroline K. SperryView Author Information Department of Chemistry, University of Rochester Rochester, New York 14627-0216 Cite this: J. Am. Chem. Soc. 1997, 119, 39, 9305–9306Publication Date (Web):October 1, 1997Publication History Received16 June 1997Published online1 October 1997Published inissue 1 October 1997https://pubs.acs.org/doi/10.1021/ja971976nhttps://doi.org/10.1021/ja971976nrapid-communicationACS PublicationsCopyright © 1997 American Chemical SocietyRequest reuse permissionsArticle Views481Altmetric-Citations98LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information SUBJECTS:Catalysts,Chemical reactions,Hydrocarbons,Ligands,Molecular structure Get e-Alerts
<title>Object identification and registration via sieve processes</title> (1996)

A fundamental problem in computer vision is establishing correspondence between features in two images of the same scene. The computational burden in this problem is solving for the optimal mapping and transformation between the two scenes. In this paper we present a sieve algorithm for efficiently estimating the transformation and correspondence. A sieve algorithm use approximations to generate a sequence of increasingly accurate estimates of the correspondence. Initially, the approximations are computationally inexpensive and are designed to quickly sieve through the space of possible solutions. As the space of possible solutions shrinks, greater accuracy is required and the complexity of the approximations increases. The features in the image are modeled as points in the plane, and the structure in the image is a planar graph between the features. By modeling the object in the image as a planar graph we allow the approximations to be designed with point- set matching algorithms, geometric invariants, and graph- processing algorithms. The sieve algorithm is demonstrated on three problems. The first is registering images of muscles taken with an electron microscope. The second is aligning images of geometric patterns taken with a charged- couple device (CCD) camera. The third is recognizing objects taken with a CCD camera.
Asia Pacific consensus recommendations for colorectal cancer screening (2008)

Colorectal cancer (CRC) is rapidly increasing in Asia, but screening guidelines are lacking. Through reviewing the literature and regional data, and using the modified Delphi process, the Asia Pacific Working Group on Colorectal Cancer and international experts launch consensus recommendations aiming to improve the awareness of healthcare providers of the changing epidemiology and screening tests available. The incidence, anatomical distribution and mortality of CRC among Asian populations are not different compared with Western countries. There is a trend of proximal migration of colonic polyps. Flat or depressed lesions are not uncommon. Screening for CRC should be started at the age of 50 years. Male gender, smoking, obesity and family history are risk factors for colorectal neoplasia. Faecal occult blood test (FOBT, guaiac-based and immunochemical tests), flexible sigmoidoscopy and colonoscopy are recommended for CRC screening. Double-contrast barium enema and CT colonography are not preferred. In resource-limited countries, FOBT is the first choice for CRC screening. Polyps 5-9 mm in diameter should be removed endoscopically and, following a negative colonoscopy, a repeat examination should be performed in 10 years. Screening for CRC should be a national health priority in most Asian countries. Studies on barriers to CRC screening, education for the public and engagement of primary care physicians should be undertaken. There is no consensus on whether nurses should be trained to perform endoscopic procedures for screening of colorectal neoplasia.
Thalamocortical Angular Tuning Domains within Individual Barrels of Rat Somatosensory Cortex (2003)

In the rodent somatosensory cortex, whisker-related barrels in layer IV are morphological counterparts of functional cortical columns that extend throughout the cortical depth. We used microelectrode recordings and spike-triggered averaging of field potentials evoked by single thalamic barreloid neurons to investigate functional thalamocortical microcircuits. The function of such circuits was probed by deflecting the principal whisker of a barrel in different angular directions. We found that individual barrels contain minicolumns of neurons preferring the same deflection angle. Angular tuning domains are established by convergent inputs from thalamocortical cells with corresponding angular preferences. Processing within such domains may depend on local connectivity among vertically aligned barrel neurons.
Quality Assessment of Genetic Markers Used for Therapy Stratification (2003)

This study demonstrated the importance of revealing the difficulties and limitations for each technique and problems in interpreting results, which are crucial for therapeutic decisions. Moreover, it led to the formulation of guidelines that are applicable to all kinds of tumors and that contain the standardization of techniques, including the exact determination of the tumor cell content. Finally, the group has developed a common terminology for molecular-genetic results.
Erratum: Anisotropy and dimensional crossover of the vortex state inBi2Sr2CaCu2O8+δcrystals (1996)

In our calculation of Raman and infrared ir intensities of C 60 and C 70 molecules we adopted the bond-polarizability model BPM Sec. IV of our paper, with an explicit reference to the fundamental work by Go, Bilz, and Cardona, 1 but we overlooked the recent paper by Snoke and Cardona 2 that appeared before the submission of our paper, where the authors were able to determine the electron-phonon interaction derivatives of the bond polarizabilities of C 60 from a BPM fit of the Raman intensities. We regret this omission, also because the theoretical relative values of the polarizability derivatives as derived from our bond charge model receive further support from the Snoke and Cardona fit values.
The role of the mobile proton in fucose migration (2019)

Fucose migration reactions represent a substantial challenge in the analysis of fucosylated glycan structures by mass spectrometry. In addition to the well-established observation of transposed fucose residues in glycan-dissociation product ions, recent experiments show that the rearrangement can also occur in intact glycan ions. These results suggest a low-energy barrier for migration of the fucose residue and broaden the relevance of fucose migration to include other types of mass spectrometry experiments, including ion mobility-mass spectrometry and ion spectroscopy. In this work, we utilize cold-ion infrared spectroscopy to provide further insight into glycan scrambling in intact glycan ions. Our results show that the mobility of the proton is a prerequisite for the migration reaction. For the prototypical fucosylated glycans Lewis x and blood group antigen H-2, the formation of adduct ions or the addition of functional groups with variable proton affinity yields significant differences in the infrared spectra. These changes correlate well with the promotion or inhibition of fucose migration through the presence or absence of a mobile proton.
In-vivo evaluation in rats of colon-specific microspheres containing 5-fluorouracil (2008)

The aims of this investigation were to determine the distribution in the gastrointestinal (GI) tract of Eudragit S-100 encapsulated colon-specific sodium alginate microspheres containing 5-fluorouracil (5-FU) in rats, and to perform pharmacokinetic and pharmacodynamic studies. Comparisons were with a control immediate-release (IR) formulation of 5-FU. 5-FU was distributed predominantly in the upper GI tract from the IR formulation but was distributed primarily to the lower part of the GI tract from the microsphere formulation. No drug was released in the stomach and intestinal regions from the colon-specific microspheres. Significantly, a high concentration of the active drug was achieved in colonic tissues from the colon-specific microspheres (P < 0.001), which was higher than the IC50 required to halt the growth of and/or kill colon cancer cells. Colon cancer was induced in rats by subcutaneous injection of 1,2-dimethylhydrazine (40 mg kg (-1)) for 10 weeks. The tumours induced were non-invasive adenocarcinomas and were in Duke's stage A. The 5-FU formulations were administered for 4 weeks after tumour induction. Non-significant reductions in tumour volume and multiplicity were observed in animals given the colon-specific microspheres. Enhanced levels of liver enzymes (SGOT, SGPT and alkaline phosphatase) were found in animals given the IR formulation of 5-FU, and values differed significantly (P < 0.001) from those in animals treated with the colon-specific microspheres. Elevated levels of serum albumin and creatinine, and leucocytopenia and thrombocytopenia were observed in the animals given the IR formulation. In summary, Eudragit S-100 coated alginate microspheres delivered 5-FU to colonic tissues, with reduced systemic side-effects. A long-term dosing study is required to ascertain the therapeutic benefits.
Clustering analysis of geriatric and acute characteristics in a cohort of very old patients on admission to ICU (2022)

Phenotyping of very old patients on admission to ICU revealed new phenotypes with different mortality and potential need for anticipatory intervention.
Versatile hybrid acoustic micromixer with demonstration of circulating cell-free DNA extraction from sub-ml plasma samples (2020)

Acoustic micromixers have attracted considerable attention in the last years since they can deliver high mixing efficiencies without the need for movable components. However, their adoption in the academic and industrial microfluidics community has been limited, possibly due to the reduced flexibility and accessibility of previous designs since most of them are application-specific and fabricated with techniques that are expensive, not widely available and difficult to integrate with other manufacturing technologies. In this work, we describe a simple, yet highly versatile, bubble-based micromixer module fabricated with a combination of low-cost rapid prototyping techniques. The hybrid approach enables the integration of the module into practically any substrate and the individual control of multiple micromixers embedded within the same monolithic chip. The module can operate under static and continuous flow conditions showing enhanced mixing capabilities compared to similar devices. We show that the system is capable of performing cell-free DNA extractions from small volumes of blood plasma (≤500 μl) with up to a ten-fold increase in capture efficiency when compared to control methods.
Whether This Participant will Attract You to This Event? Exploiting Participant Influence for Event Recommendation (2016)

When a user is making a decision on whether to participate an event in Event-based Social Networks (EBSN), one of the common considerations is who have agreed to join this event. The reason is that existing participants of the event affect the decision of the user, to which we refer as participant influence. However, participant influence is not well studied by previous works. In this paper, we propose an event recommendation model which considers participant influence, exploiting the influence of existing participants, on the decisions of new participants. Specifically, we investigate participant influence in relation to several commonly used contextual aspects of the event based on Poisson factorization. We have conducted extensive experiments on some datasets extracted from a real-world EBSN. The results demonstrate that the consideration of participant influence can improve event recommendation.
The Use of Allograft Bone in Revision of Total Hip Arthroplasty (1985)

Fifty-two frozen bone allografts have been used on 44 patients undergoing revision hip arthroplasties. The average follow-up time on these patients has been 17 months, with a range of six to 72 months. Both proximal femoral allografts and the allografts for the reconstruction of acetabular deficiencies have been used. To date, most patients experience marked pain relief and improvement in function. Though the results attained to date are short-term, the use of allografts in the revision hip arthroplasties represents a natural progression of the tumor work. However, while the early results are encouraging, it remains to be seen how the proximal femur allografts and the large acetabular allografts will behave over a long period of time.
On the Mechanism of Action of Dragmacidins I and J, Two New Representatives of a New Class of Protein Phosphatase 1 and 2A Inhibitors (2018)

Two new brominated bis(indole) alkaloids, dragmacidins I (1) and J (2), showing low micromolar cytostatic activity, along with three known congeners were isolated from the Tanzanian sponge <i>Dragmacidon</i> sp. and their structures determined by the analysis of their NMR and MS data. From the study of their mechanism of action, it can be concluded that the mitotic arrest at metaphase in treated tumor cells, mediated by inhibition of PP1 and/or PP2A phosphatases is involved in the observed antiproliferative activity. Differences in their bioactivities were rationalized, and a plausible binding mode is proposed on the basis of computational simulations.
Synthesis and Mechanism of Nanosized AlN from an Aluminum Oleic Emulsion Using Carbothermal Reduction at Low Temperatures (2008)

Nanosized Al 2 O 3 particles homogeneously dispersed in a matrix of amorphous carbon (a‐C) were prepared by decomposition of an aluminum oleic emulsion at 600°C in Ar. Nanosized aluminum nitride (AlN) grains were prepared by carbothermal reduction and nitridation (CRN) of this Al 2 O 3 –a‐C mixture in NH 3 using graphite, BN, and alumina crucibles or boats. The phases formed by CRN were identified by X‐ray diffraction analysis. The morphology and grain size of the AlN were determined by transmission electron microscopy. The formation of single‐phase AlN was achieved at temperatures as low as 1150°–1200°C in NH 3 using a cylindrical graphite crucible with holes in its two flat faces. Mass spectroscopy (MS) showed that a significant amount of HCN and a minor amount of C 2 H 2 are formed at 500°C by reaction of NH 3 with carbon at the decomposition temperature of NH 3 . A most probable formation mechanism of the AlN from nanosized Al 2 O 3 and a‐C in NH 3 is discussed on the basis of MS results and thermodynamic considerations.
Dynamic instability mitigation using a single nonlinear energy sink in a friction system with two unstable modes (2022)

International audience
Raman scattering and X-ray diffraction studies on phase III of solid hydrogen (2017)

The structure of the phase III of solid hydrogen has been investigated from Raman scattering and X-ray powder diffraction experiments at low temperature based on the diamond anvil Raman gauge at pressures up to 300 GPa and 190 GPa, respectively. Observed splitting of low frequency Raman bands at around 230 GPa has suggested distinct lattice deformation of the hcp-like structure in phase III while X-ray diffraction data proposed that the molecular center was located in the vicinity of lattice points of hcp up to 190 GPa.
Forward Markets and Signals of Quality (2003)

We analyze how information about quality may be conveyed via forward trading. A privately informed monopolist has the opportunity to make forward sales. Speculators and consumers, participating in the forward and the spot markets respectively, observe the monopolist's decisions in these markets. We show that forward trading may emerge in equilibrium although the monopolist has neither insurance nor hedging incentives. Indeed, the high-quality monopolist uses forward trading to reduce the cost of signalling quality through spot prices. We conclude that forward trading indirectly contributes to signal quality more efficiently in the spot market. Copyright 2003 by the RAND Corporation.
<title>Multiwave Cherenkov generator experiments</title> (1993)

A brief review of past multiwave Cherenkov generator experiments is presented, together with a summary of progress in an ongoing investigation.© (1993) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
In Vitro Inactivation of SARS-CoV-2 Using Gamma Radiation (2020)

Gamma irradiation can be used as a reliable method to inactivate SARS-CoV-2 with minimal effect on subsequent PCR assay.
Modeling behavior, a step towards defining functionally correct views of complex objects in concurrent engineering (1994)

Multidisciplinary concurrent engineering needs to model and manage different views of complex designs. Previous attempts to address the problem of creating views of complex objects in object oriented database systems focus on the structure of complex objects; little attention is paid to how complex object behavior is effected when creating views. We believe that designing functionally correct behavior for a complex object should be a major consideration when defining a view to guarantee correctness of the derived classes.In this paper, we study the problem for designing functionally correct views of complex objects in concurrent engineering. View behavioral modeling requirements are presented. A behavior model that satisfies these requirements is presented. This model is demonstrated on an example complex object that represents process management.
Residential energy conservation: The Twin Rivers Project (1977)

A residential energy-consumption study conducted in Twin Rivers, N.J., by Princeton University's Center for Environmental Studies has resulted in an improved modeling of energy-related features of typical townhouses and occupant activities and has provided the basis for a retrofit experiment which achieved 25% gas and 10% electrical savings with a capital-improvement payback period of 3 years: utility records and instrument monitoring demonstrated that energy consumption in identical housing units can vary by as much as 100%, the differences being largely a function of occupant behavior and, to a lesser extent, house tightness and heating-duct integrity. Insulation of the basement portions of the heating ducts reduces both the steady-state and transient transfer of heat from the ducts to the basement. Reducing the furnace rating and lowering the blower cutoff temperature improves the overall furnace performance by reducing losses from the transient portion of the heat transfer.