gebhart/patrepeval huggingface dataset:
Transacylation as a chain-termination mechanism in fatty acid synthesis by mammalian fatty acid synthetase. Synthesis of butyrate and hexanoate by lactating cow mammary gland fatty acid synthetase (1980)

1. Purified cow mammary gland fatty acid synthetase synthesized long-chain unesterified and short-chain esterified fatty acids. 2. A direct relationship was observed between the amount of short-chain products synthesized and the concentration of acetyl-CoA in the incubation medium. 3. The short-chain products were identified as butyryl-CoA and hexanoyl-CoA. 4. Inhibition of the terminating thioester hydrolase of the fatty acid synthetase complex with phenylmethanesulphonyl fluoride did not inhibit the synthesis of short-chain products. 5. It is suggested that the synthesis of short-chain fatty acids involves the reverse of the 'loading' reaction.
The Association Between Gingival Crevicular Fluid TGF‐β1 Levels and Periodontal Status in HIV‐1<sup>+</sup> Patients (2007)

In subjects who are HIV-1(+), sites with high GCF levels of TGF-beta1 are at significantly greater risk for the progression of established periodontitis.
Efficacy and Safety of On-Demand Oral Tadalafil in the Treatment of Men with Erectile Dysfunction in Taiwan: A Randomized, Double-Blind, Parallel, Placebo-Controlled Clinical Study (2004)

Tadalafil was an effective, well-tolerated therapy for men in Taiwan with ED of broad-spectrum severity and etiology.
Computerized Analysis And Information Extraction' Of Medical Magnetic Resonance Images (Mri) (1988)

Magnetic Resonance Imaging (MRI) is a relatively new diagnostic imaging modality that is rapidly finding broad clinical application. MRI differs from other diagnostic techniques in its capacity to obtain multiple qualitatively different images of the same anatomic region each emphasizing a different fundamental parameter of the tissue. This multiparametric nature of MRI provides the potential for greatly improved sensitivity and specificity in the detection of pathological conditions. However, the complexity of MRI can produce a potentially overwhelming volume of image data for the physician to analyze visually utilizing the traditional grey-scale. Additionally, "visual synthesis" of images from multiple data sets is only semi-quantitative at best and subject to errors introduced by observer bias. Data dimension reduction techniques are needed for analysis of these image sets of multi-parametric MRI data. It is hoped that improved diagnostic specificity of MRI will come from such a quantitative analysis of multiple MR images. Our initial experience with application of fuzzy clustering analysis to these MR images as a method of data dimension reduction suggests that such an approach can improve tissue specificity.
ChemInform Abstract: HYDROBORATION. 51. HYDROBORATION OF REPRESENTATIVE ALLENES WITH 9‐BORABICYCLO(3.3.1)NONANE. AN EXCEPTIONAL DIRECTIVE EFFECT PROVIDING A DIRECT SYNTHESIS OF B‐ALLYL‐9‐BORABICYCLO(3.3.1)NONANE DERIVATIVES (1979)

Abstract Die außerordentliche Empfindlichkeit gegenüber den Strukturen, die das Borabicycloderivat (II) in seinen Hydroborierungsreaktionen zeigt, wird am Beispiel der Hydroborierung von Allenen untersucht.
Using ultrashort terahertz pulses to directly probe spin dynamics in insulating antiferromagnets (2018)

Terahertz pulses are a direct and general probe of ultrafast spin dynamics in insulating antiferromagnets (AFM). This is shown by using optical-pump, THz-probe spectroscopy to directly track AFM spin dynamics in the hexagonal multiferroic HoMnO<sub>3</sub> and the orthorhombic multiferroic TbMnO<sub>3</sub>. Here, our studies show that despite the different structural and spin orders in these materials, THz pulses can unambiguously resolve spin dynamics after optical photoexcitation. Lastly, we believe that this approach is quite general and can be applied to a broad range of materials with different AFM spin alignments, providing a novel non-contact approach for probing AFM order with femtosecond temporal resolution.
Grain coarsening in hot deformed austenitic Cr‐Ni steel (1984)

Simulation of forging of Nb‐stabilised Cr‐Ni steel using a hot deformation simulator. Modelling of various courses of temperature in between and after deformation steps. Assessment of the effects of various soaking conditions on grain growth. Evaluation of recrystallisation and grain growth characteristics by quantitative metallography.
Techniques for Vascular Depiction Using Magnetic Resonance Angiography (1998)

Magnetic Resonance Angiography provides an effective method to evaluate vascular morphology that involves very little risk to the patient. The quality of vascular delineation rests on a suitable choice of imaging parameters. This requires a detailed understanding of both the physics of MRI, and the physiology of blood flow in vivo. Three primary strategies are used: Time-of-Flight MR angiography creates differences in magnetization magnitude between flowing and stationary spins by manipulation of imaging parameters alone; Phase-contrast MR angiography induces changes in the spatial orientation, or phase, of flowing spins relative to stationary spins; and Contrast-Enhanced MR angiography creates differences in magnetization magnitude between flowing and stationary spins by injection of a contrast agent.
SU‐E‐P‐22: AAPM Task Group 263 Tackling Standardization of Nomenclature for Radiation Therapy (2015)

Purpose: There is growing recognition of need for increased clarity and consistency in the nomenclatures used for body and organ structures, DVH metrics, toxicity, dose and volume units, etc. Standardization has multiple benefits; e.g. facilitating data collection for clinical trials, enabling the pooling of data between institutions, making transfers (i.e. hand‐offs) between centers safer, and enabling vendors to define “default” settings. Towards this goal, the American Association of Physicists in Medicine (AAPM) formed a task group (TG263) in July of 2014, operating under the Work Group on Clinical Trials to develop consensus statements. Guiding principles derived from the investigation and example nomenclatures will be presented for public feedback. Methods: We formed a multi‐institutional and multi‐vendor collaborative group of 39 physicists, physicians and others involved in clinical use and electronic transfer of information. Members include individuals from IROC, NRG, IHE‐RO, DICOM WG‐7, ASTRO and EORTC groups with overlapping interests to maximize the quality of the consensus and increase the likelihood of adoption. Surveys of group and NRG members were used to define current nomenclatures and requirements. Technical requirements of vendor systems and the proposed DICOM standards were examined. Results: There is a marked degree of inter and intra institutional variation in current approaches, resulting from inter‐vendor differences in capabilities, clinic specific conceptualizations and inconsistencies. Using a consensus approach, the group defined optimal formats for the naming of targets and normal structures. A formal objective assessment of 13 existing clinically‐used software packages show that all had capabilities to accommodate these recommended nomenclatures. Conclusions: A multi‐stakeholder effort is making significant steps forward in developing a standard nomenclature that will work across platforms. Our current working list includes > 550 structures. Outreach efforts are ongoing to ensure broader participation in evaluating and testing the principles as they are developed by TG263.
Crosswell seismic data tomography for heterogeneous viscoelastic media (2004)

For crosswell seismic waveform inverse problems, anelastic parameters for heterogeneous media need to be taken into account. The Fréchet derivatives allow solving inverse problem with a high number of parameters; however, for the anelastic case, the Fréchet derivatives do not have simple expressions. This is due to the time convolution in the general linear constitutive relation. The viscoelastic model, based on the superposition of relaxation Zener mechanisms, allows turning the time convolution relation into a set of first order partial differential equations which can be numerically handled. Equations are rewritten to model an approximately constant quality factor for frequency bandwidth. Thus, by using this simplified constitutive relation and the associated Fréchet derivatives, a new formulation for the viscoelastic anisotropic seismic inverse problem is derived. This approach reduces the computer time and memory requirements to the point where computations are practical. We illustrate the feasibility of the method by a full‐wave inversion of a synthetic crosswell synthetic data set for a 2D viscoelastic isotropic medium.
Slot-Die Coating Operability Window for Nanoparticle Bed Deposition in a Microscale Selective Laser Sintering Tool (2020)

Abstract This work seeks to develop a fundamental understanding of slot-die coating as a nanoparticle bed deposition mechanism for a microscale selective laser sintering (μ-SLS) process. The specific requirements of the μ-SLS process to deposit uniform sub-5 μm metal nanoparticle films while enabling high throughput fabrication make the slot-die coating process a strong candidate for layer-by-layer deposition. The key challenges of a coating system are to enable uniform nanoparticle ink deposition in an intermittent layer-by-layer manner. Identifying the experimental parameters to achieve this using a slot-die coating process is difficult. Therefore, the main contribution of this study is to develop a framework to predict the wet film thickness and onset of coating defects by simulating the experimental conditions of the μ-SLS process. The single-layer deposition characteristics and the operational window for the slot-die coating setup have been investigated through experiments and two-dimensional computational fluid dynamics simulations. The effect of coating parameters such as inlet speed, coating speed, and coating gap on the wet film thickness has been analyzed. For inlet speeds higher than the coating speed, it was found that the meniscus was susceptible to high instabilities leading to coating defects. Additionally, the study outlines the conditions for which the stability of the menisci upstream and downstream of the slot-die coater can affect the uniformity and thickness range of the coating.
Reformulating Reid's MHT method with generalised Murty <i>K</i> -best ranked linear assignment algorithm (2006)

The authors reformulate Reid's multiple hypothesis tracking algorithm to exploit a K-best ranked linear assignment algorithm for data association. The reformulated algorithm is designed for real-time tracking of large numbers of closely spaced objects. A likelihood association matrix is constructed that, for each scan, for each cluster, for each cluster hypothesis, exactly and compactly encodes the complete set of Reid's data association hypotheses. The set of this matrix's feasible assignments with corresponding non-vanishing products is shown to map one-to-one respectively onto the set of Reid's data association hypotheses and their corresponding probabilities. The explicit structure of this matrix is a new result and leads to an explicit hypothesis counting formula. Replacement of the likelihood association matrix elements by their negative natural logs then transforms the data association matrix into a linear assignment problem matrix and recasts the problem of data association into efficiently finding sets of ranked assignments. Fast polynomial time Murty ranked assignment algorithms can thus replace Reid's original NP-hard exhaustive hypothesis identification, probability evaluation, and branch-and-prune methods and can rapidly determine the maximally likely data association hypothesis, the second most likely, etc. Results from two high fidelity surveillance sensor simulations show the validity of the proposed method.
From Cord to Eye: Wharton Jelly-Derived Stem Cells Differentiate Into Corneal Endothelial–Like Cells (2020)

These data indicate that a well-characterized, functional CEC monolayer was developed by using a DLT-mediated mechanotransductive differentiation of WJ-EPCs.
Recent Advances of the Use Of Lamb Waves for Material Characterization (2005)

In recent years Lamb waves have been successfully used for detecting defects in homogeneous metal plates, coated plates, and multi-layered composite plates. Different Lamb modes generate various stress and displacement profiles in the plate. These stress and displacement components are altered by the internal defects, and thus the defects are detected. All Lamb modes are not equally sensitive to a particular defect. A number of studies have been carried out to identify which Lamb mode is most effective for detecting a defect at a specific location of the plate. Superiority of the Lamb wave inspection technique compared to the conventional ultrasonic technique using P-waves has been established. The overwhelming success of the Lamb wave inspection technique for metal and composite plate inspection has encouraged Kundu and his coworkers to investigate its applicability for some new problems. The new applications include internal defect detection in metal pipes, concrete beams, as well as some new applications in composite plate inspection. One such new application is to generate the “Near-Lamb Mode Image” of a multi-layered composite plate, instead of the “Lamb Mode Image”. Advantage of the ”Near-Lamb Mode Image” is that it can distinguish between the layers of mirror symmetry in a composite plate. The pipe inspection has been carried out by the higherorder non-axisymmetric flexural modes instead of the commonly used longitudinal and torsional modes. A brief review of these recent advances of the Lamb wave inspection technique is presented in this paper.
Synthesis, Characterization and Electrical Properties of the Sodium Conductor NaxGa4+xTi1-xO 8 (X 0.7) and Its Analogs (2010)

Advisory committee members: Scott Misture, Walter Schulze, Alastair Cormack. Dissertation completed in partial fulfillment of the requirements for the degree of Doctorate of Philosophy in Materials Science and Engineering at the Kazuo Inamori School of Engineering, New York State College of Ceramics at Alfred University
Eye movements and on-line language comprehension processes (1989)

Abstract Eye movement records have been used profitably to study on-line comprehension processes in reading. We present some basic facts about eye movements during reading, emphasising issues concerning the use of eye movement data to infer cognitive processes that are involved in (1) word processing, (2) syntactic parsing, and (3) higher-order processes. We review research on each of these topics and present new data dealing with word processing and high-order processes. We conclude that the analysis of eye movement records provides a great deal of useful information about on-line processing and that eye movement recording is a good way to study many critical issues concerning language comprehension processes.
<sup>1</sup>H and <sup>13</sup>C NMR chemical shift assignments and conformational analysis for the two diastereomers of the vitamin K epoxide reductase inhibitor brodifacoum (2009)

Abstract Proton and 13 C NMR chemical shifts and 1 H 1 H scalar couplings for the two diastereomers of the potent vitamin K epoxide reductase (VKOR) inhibitor brodifacoum have been determined at 293 K from acetone solutions containing both diastereomers. To facilitate difficult assignments, homo‐ and heteronuclear correlation spectra were acquired at 750 and 900 MHz over 268–303 K temperature range. Conformations of both diastereomers inferred from the scalar couplings and 1‐D NOE measurements reveal that one diastereomer ( SS/RR ) adopts a strained geometry in the cyclohexene ring system of the tetralin group. The NMR spectra also show evidence of line broadening due to conformational exchange at room temperature for the SR/RS diastereomer. These assignments and conformational analyses may be useful in studies of biomolecular interactions of brodifacoum with target proteins such as VKOR and in source determination of brodifacoum. Copyright © 2009 John Wiley & Sons, Ltd.
Cross-Modal Fusion Between Data in SAXS and Cryo-EM for Biomolecular\n Structure Determination (2019)

Cryo-Electron Microscopy (cryo-EM) has become an extremely powerful method\nfor resolving structural details of large biomolecular complexes. However,\nchallenging problems in single-particle methods remain open because of (1) the\nlow signal-to-noise ratio in EM; and (2) the potential anisotropy and lack of\ncoverage of projection directions relative to the body-fixed coordinate system\nfor some complexes. Whereas (1) is usually addressed by class averaging (and\nincreasingly due to rapid advances in microscope and sensor technology), (2) is\nan artifact of the mechanics of interaction of biomolecular complexes and the\nvitrification process. In the absence of tilt series, (2) remains a problem,\nwhich is addressed here by supplementing EM data with Small-Angle X-Ray\nScattering (SAXS). Whereas SAXS is of relatively low resolution and contains\nmuch lower information content than EM, we show that it is nevertheless\npossible to use SAXS to fill in blind spots in EM in difficult cases where the\nrange of projection directions is limited.\n
Gain of High-pressure C02 Lasers (1978)

Previous theories of high-pressure C02 gain spectra have been modified to include gain contributions from the newly discovered 00'2 and 00'3 sequence bands. It is shown that the inclusion of these bands has important consequences for TE C02 lasers. At a pressure of 14 atm, the sequence bands typically cause a 40 percent increase in cal- culated gain at all frequencies. Even at pressures as low as l atm, the presence of the sequence lines leads to anomalous gain coefficients on many of the regular 00 1 laser lines. recent years, pulsed C02 lasers have been operated at pres- sures well in excess of 1 atm ( 13 - (5). An interesting fea- ture of molecular lasers at such high pressures is the overlap- ping of the individual rotational lines caused by pressure broadening. The gain at any particular frequency is the sum of contributions from nearby rotational lines, and these contribu- tions can be evaluated as a function of pressure. In this paper, the gain of high-pressure C02 lasers is reexamined in the light of the recent discovery of several new laser bands in contin- uous emission from a C02 laser (6) -(7). These bands were identified as the (00'2-(10°1, 02'111,~) and (00'3-(102, 02'23 I, 11) bands, or sequence bands. Experimentally, it has been shown that the gain on the 00'2 sequence band is typi- cally -40 percent of that on the regular 00'1 band (7). Hence, these bands must be included in any accurate calcula- tions of C02 gain spectra. We have modified previous theories of high-pressure C02 spectra (8) -( 131 to include gain contri- butions from the sequence bands, and we show that the inclu- sion of these bands has important consequences for TE C02 lasers. Fig. 1 shows the relevant energy levels in the C02 molecule, and the newly observed laser bands. In view of the large number of laser bands which have now been obtained in C02, each band will be labeled by its upper level only, and the wavelength of the band center (7). It is generally assumed that the behavior of C02 in a discharge can be characterized by a four-temperature kinetic model, with a single vibrational temperature for each vibrational mode ( 131 . Thus vibrational
CHONDROMYXOID FIBROMA OF BONE (1953)

Division of Surgical Pathology, Mayo Clinic Duluth, Minnesota Section of Orthopaedic Surgery, Mayo Clinic
New technology approaches (2007)

Subtitle: JAA's rule amendment for all-weather ops reflects modern arrival procedures and advanced technology.
ChemInform Abstract: Production of Aroma Compounds by Enzymatic Cooxidation of Carotenoids. (2002)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Synthesis of Cementite (1950)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation L. J. E. Hofer, E. M. Cohn; Synthesis of Cementite. J. Chem. Phys. 1 May 1950; 18 (5): 766–767. https://doi.org/10.1063/1.1747762 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 ContentAIP Publishing PortfolioThe Journal of Chemical Physics Search Advanced Search |Citation Search
Laser ablation patterning for low cost 3D die packaging (1997)

High cost has been the barrier in the wide spread application of high density 3D die packaging. Current industry technologies add $75 to $300 per die to provide packaged die in a 3D memory cube format. A novel patterning approach employing excimer laser ablation reduces the die reroute process and cube fabrication process steps by over two thirds. This reduces the estimated added cost to well under $25 per die. Two process developments were necessary to achieve this step function reduction in cost; a vapor deposited polyimide process and a thin film metal ablation process, both processes are accomplished on bare die. The vapor deposition polymerization process allows the formation of solventless films through vacuum co-evaporation of a dianhydride and diamine. The excimer laser ablation process is widely used to ablate vias in polyimide at a very high rate. Its use as a method of patterning thin film metal is atypical. Its use in patterning die on the face and edge in a single process set-up is unique. Results on using both processes to build inexpensive 3D memory products will be presented.
Characteristics of Origin-Destination Pair Traffic in Funet (2006)

In this paper we analyze measurements gathered from a 2.5 Gbps link in the Finnish university network (Funet) in 2004. The traffic is broken down into origin-destination (OD) pair components based on source and destination IP address. We study the traffic characteristics of these components, and identify four typical representative OD pairs. For these pairs we investigate the validity of a moving IID Gaussian model. We find that the statistical properties of these OD pairs differ significantly from each other, with only some of them close to Gaussian. The OD pairs are also found to have some cross-correlation between each other, contradicting an often made assumption about OD pair independence. Furthermore, the existence of a mean-variance relation between the OD pairs is studied. We find that there is a relation between mean and variance, but for some periods of time it is rather weak.
Histopathological Observations on the Sequence of Infection in Knemidokoptic Mange of Budgerigars (Melopsittacus undulatus) (1957)

Conrad E. Yunker, Kamal G. Ishak, Histopathological Observations on the Sequence of Infection in Knemidokoptic Mange of Budgerigars (Melopsittacus undulatus), The Journal of Parasitology, Vol. 43, No. 6 (Dec., 1957), pp. 664-672
The performance of processor co-allocation in multicluster systems (2003)

In systems consisting of multiple clusters of processors which are interconnected by relatively slow communication links and which employ space sharing for scheduling jobs, such as our Distributed ASCI Supercomputer (DAS), co-allocation, i.e., the simultaneous allocation of processors to single jobs in different clusters, may be required. We study the performance of co-allocation by means of simulations for the mean response time of jobs depending on the structure and sizes of jobs, the scheduling policy, and the communication speed ratio. Our main conclusion is that for current communication speed ratios in multiclusters, coallocation is a viable option.