gebhart/patrepeval huggingface dataset:
Studies of aroma constituents bound as glycosides in tomato (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudies of aroma constituents bound as glycosides in tomatoCarolyn. Marlatt, Chi Tang. Ho, and Mingjien. ChienCite this: J. Agric. Food Chem. 1992, 40, 2, 249–252Publication Date (Print):February 1, 1992Publication History Published online1 May 2002Published inissue 1 February 1992https://pubs.acs.org/doi/10.1021/jf00014a016https://doi.org/10.1021/jf00014a016research-articleACS PublicationsRequest reuse permissionsArticle Views470Altmetric-Citations55LEARN 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
Focal adhesion kinase and cancer. (2009)

Focal adhesion kinase (FAK) is a non-receptor tyrosine kinase that resides at the sites of integrin clustering, known as focal adhesions. The FAK protein has a molecular mass of 125kDa and is encoded by the FAK gene located on human chromosome 8q24. Structurally, FAK consists of an amino-terminal regulatory FERM domain, a central catalytic kinase domain, two proline-rich motifs, and a carboxy-terminal focal adhesion targeting domain. FAK has been shown to be an important mediator of cell growth, cell proliferation, cell survival and cell migration, all of which are often dysfunctional in cancer cells. Our lab was the first to isolate FAK from primary human tissue and link it to the process of tumorigenesis. We analyzed FAK mRNA expression in normal, invasive and metastatic human tissues and demonstrated through Northern blot analysis that normal tissues had very low levels of FAK mRNA while primary and metastatic tumors significantly overexpressed FAK. We also demonstrated and confirmed FAK overexpression in colorectal carcinoma and liver metastases with real-time PCR. In this review we summarized immunohistochemical data of FAK expression and role in different cancer types tumors and discussed FAK inhibition therapy approaches.
Synthesis of New Pyropheophytin‐naphthoquinone Dyads for Investigations of Photoinduced Electron Transfer (1997)

Abstract Two new, covalently‐linked pyropheophytin‐naphthoquinone dyads 1 and 2 have been synthesized for use as model compounds in studies of photoinduced electron transfer. The starting material for the synthesis was chlorophyll a ( 3 ). This was first pyrolyzed to 13 2 ‐demethoxycarbonylchlorophyll a ( 4 ), which was then oxidized regioselectively to 13 2 ‐demethoxycarbonyl‐P4( R/S )‐hydroxypheophytin a ( 5 ). Compound 5 was esterified with naphthoquinone carboxylic acid 17 by the carbodiimide method to afford 13 2 ‐demethoxycarbonyl‐P4( R/S )‐oxy‐[2‐(2′‐carboxyethyl)‐3‐methyl‐1,4‐naphthoquinone]pheophytin a ( 1 ) and ( 2 ). The observation that fluorescence emission is effectively quenched in dyads 1 and 2 , relative to compound 5 which does not bear an electron‐acceptor, indicates that intramolecular electron transfer from the excited donor part to the ground state acceptor part of the molecule occurs readily.
Tumor necrosis factors <i>alpha</i> and <i>beta</i> differ in their capacities to generate interleukin 1 release from human endothelial cells. (1987)

The capacity of the tumor necrosis factors, TNF-alpha and TNF-beta, products of activated macrophages and lymphocytes, respectively, to stimulate interleukin 1 (IL-1) release from endothelial cells derived from human umbilical veins was examined in vitro. Recombinant TNF-alpha caused IL-1 release by 4 hr with maximal levels of 17 U/ml by 24 hr; half-maximal stimulation occurred at approximately 80 pM. In contrast, recombinant TNF-beta was a relatively poor stimulus for IL-1 release. Even at concentrations as high as 600 pM, only 3 U of IL-1/ml were recovered; maximal IL-1 release (10 to 12 U/ml) required up to 5 nM TNF-beta. Natural, glycosated human TNF-beta was comparable in activity to recombinant TNF-beta. TNF-beta did not directly inhibit the IL-1 comitogenesis assay, nor was there evidence that TNF-beta induced the release of an IL-1 inhibitor, in that supernatants generated in the presence of TNF-beta did not inhibit thymocyte proliferation to a recombinant IL-1 standard. Binding of the recombinant TNF to endothelial monolayers was assessed by using [125I]TNF-alpha in competition studies with cold TNF-alpha and TNF-beta. Binding of TNF-alpha was half-maximal at 80 pM with an average of 664 receptors/cell and Kd = 0.043 nM. Although TNF-beta was capable of fully competing for [125I]TNF-alpha binding, half-maximal binding occurred at 800 pM TNF-beta. These data suggest that the TNF receptors on human endothelial cells may reflect the structural differences between these two homologous cytokines.
NON-EQUILIBRIUM THERMOMECHANICS OF MULTIFUNCTIONAL ENERGETIC STRUCTURAL MATERIALS (2005)

Shock waves create a unique environment of high pressure, high temperature and high strain-rates. It has been observed that chemical reactions that occur in this regime are exothermic and can lead to the synthesis of new materials that are not possible under other conditions. The exothermic reaction is used in the development of binary energetic materials. These materials are of significant interest to the energetic materials community because of its capability of releasing high heat content during a chemical reaction and the relative insensitivity of these types of energetic materials. Synthesis of these energetic materials, at nano grain sizes with structural reinforcements, provides an opportunity to develop a dual functional material with both strength and energetic characteristics. \n\nShock-induced chemical reactions pose challenges in experiment and instrumentation. This thesis is addressed to the theoretical development of constitutive models of shock-induced chemical reactions in energetic composites, formulated in the framework of non-equilibrium thermodynamics and mixture theories, in a continuum scale. Transition state-based chemical reaction models are introduced and incorporated with the conservation equations that can be used to calculate and simulate the shock-induced reaction process. The energy that should be supplied to reach the transition state has been theoretically modeled by considering both the pore collapse mechanism and the plastic flow with increasing yield stress behind the shock wave. A non-equilibrium thermodynamics framework and the associated evolution equations are introduced to account for time delays that are observed in the experiments of shock-induced or assisted chemical reactions. An appropriate representation of the particle size effects is introduced by modifying the initial energy state of the reactants. Numerical results are presented for shock-induced reactions of mixtures of Al, Fe2O3 and Ni, Al with epoxy as the binder.\n\nThe theoretical model, in the continuum scale, requires parameters that should be experimentally determined. The experimental characterization has many challenges in measurement and development of nano instrumentation. An alternate approach to determine these parameters is through ab-initio calculations. Thus, this thesis has initiated ab-initio molecular dynamics studies of shock-induced chemical reactions. Specifically, the case of thermal initiation of chemical reactions in aluminum and nickel is considered.
Semicarbazone Formation from Pyridoxal, Pyridoxal Phosphate, and Their Schiff Bases (1962)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSemicarbazone Formation from Pyridoxal, Pyridoxal Phosphate, and Their Schiff BasesE. H. Cordes and W. P. JencksCite this: Biochemistry 1962, 1, 5, 773–778Publication Date (Print):September 1, 1962Publication History Published online1 May 2002Published inissue 1 September 1962https://pubs.acs.org/doi/10.1021/bi00911a007https://doi.org/10.1021/bi00911a007research-articleACS PublicationsRequest reuse permissionsArticle Views718Altmetric-Citations88LEARN 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
InGaP/GaAs HBT with novel layer structure for emitter ledge fabrication (2002)

A novel HBT structure has been utilized to fabricate emitter ledges using a simple, selective wet chemical etch process. This structure eliminates the need for photoresist or dielectric etch masks in the fabrication of self-aligned ledges and enables the use of highly-selective wet chemical etches in forming an InGaP ledge. Small-area devices have been demonstrated with improved gain and excellent high-frequency performance.
Glucose repression over <i>Saccharomyces cerevisiae</i> glycerol/H<sup>+</sup> symporter gene <i>STL1</i> is overcome by high temperature (2007)

High temperature promotes an improved activity of the Saccharomyces cerevisiae glycerol/H(+) symporter encoded by STL1, which correlates well with Stl1p levels. This happens in both fermentable and respiratory metabolic growth conditions, though the induction in the latter is much higher. The relief of glucose repression by high temperature at the level of protein expression and activity (Stl1p) is reported for the first time. We reason that the glycerol internal levels fine-tuning, under heat-stress as in other physiological condition, can be achieved with the contribution of the tight regulation of the symporter.
Advances in Speech Recognition Technologies (1999)

This paper describes the research and development activities for speech recognition conducted in the 1990s at Fujitsu Laboratories Limited. Our interests have been focused on extending the functions and performance of speech recognition technologies developed in the 1980s. Advances in small implementations of speech recognition, recognition of continuous speech, and recognition of speech in noisy environments are described.
A model for real-time sound synthesis of guitar on a floating-point signal processor (1991)

Algorithms that can be used to synthesize guitar sounds on a floating-point signal processor are presented. A finite impulse response (FIR) Lagrange interpolator is introduced to implement the efficient and precise fractional delay approximation that is needed to achieve arbitrary and varying-length strings. This kind of interpolation is especially good in avoiding distortion and undesirable extra effects when the string length is changing continuously during the synthesis of a sound. The interpolator can also be used in other cases, e.g. in transmission-line modeling of acoustic tube resonators in wind instruments and for vocal tract models in speech synthesis. In addition to the interpolation principle, the implementation of the guitar string model on the TMS320C30 floating-point signal processor is described.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
A no‐contact vibration device for measuring implant stability (2010)

A no-contact electromagnetic vibration device may be capable of monitoring implant stability, and mechanical parameters may be useful for assessing the condition of periodontal tissues around implants.
Compost-Induced Suppression of <i>Pythium</i> Damping-Off Is Mediated by Fatty-Acid-Metabolizing Seed-Colonizing Microbial Communities (2003)

Leaf composts were studied for their suppressive effects on Pythium ultimum sporangium germination, cottonseed colonization, and the severity of Pythium damping-off of cotton. A focus of the work was to assess the role of fatty-acid-metabolizing microbial communities in disease suppression. Suppressiveness was expressed within the first few hours of seed germination as revealed by reduced P. ultimum sporangium germination, reduced seed colonization, and reduced damping-off in transplant experiments. These reductions were not observed when cottonseeds were sown in a conducive leaf compost. Microbial consortia recovered from the surface of cottonseeds during the first few hours of germination in suppressive compost (suppressive consortia) induced significant levels of damping-off suppression, whereas no suppression was induced by microbial consortia recovered from cottonseeds germinated in conducive compost (conducive consortia). Suppressive consortia rapidly metabolized linoleic acid, whereas conducive consortia did not. Furthermore, populations of fatty-acid-metabolizing bacteria and actinobacteria were higher in suppressive consortia than in conducive consortia. Individual bacterial isolates varied in their ability to metabolize linoleic acid and protect seedlings from damping-off. Results indicate that communities of compost-inhabiting microorganisms colonizing cottonseeds within the first few hours after sowing in a Pythium-suppressive compost play a major role in the suppression of P. ultimum sporangium germination, seed colonization, and damping-off. Results further indicate that fatty acid metabolism by these seed-colonizing bacterial consortia can explain the Pythium suppression observed.
A framework for fast and secure packaging identification on mobile phones (2014)

In this paper, we address the problem of fast and secure packaging identification on mobile phones. It is a well known fact that consumer goods are counterfeited on a massive scale in certain regions of the world, illustrating how existing counter measures fall short or don't exist at all, as can be seen in the local absence of laws pertaining to brand protection. This paper introduces a technological tool that allows the consumer to quickly identify a product or package with a mobile device using a physical non-cloneable features in the form of a surface micro- structure image. This natural occurring identifier allows a producer or brand owner to track and trace all its products and gives the consumer a powerful tool to confirm the authenticity of an offered product.
Primary and Secondary Features of Parkinson's Disease Improve with Strategic Exposure to Bright Light: A Case Series Study (2007)

The antagonism of melatonin in models of Parkinson's disease (PD) can reduce the severity of motor impairment associated with dopamine (DA) degeneration. In consideration of the potent antidepressant effects of bright light therapy (LT), that LT suppresses melatonin secretion, that depression is commonly observed in PD, and that exposure to constant light facilitates recovery from experimental PD, the object of the present study was to strategically administer LT to PD patients and observe the effects on depression, insomnia, and motor performance. Twelve patients diagnosed with PD were exposed to white fluorescent light for 1-1.5 h at an intensity of 1000 to 1500 lux once daily commencing 1 h prior to the usual time of sleep onset, approximately 22:00 h in most patients. All patients were assessed before LT commenced and at two weeks, five weeks, and regular intervals thereafter. Within two weeks after commencing LT, marked improvement in bradykinaesia and rigidity was observed in most patients. Tremor was not affected by LT treatment; however, agitation, dyskinaesia, and psychiatric side effects were reduced, as verified by decreased requirement for DA replacement therapy. Elevated mood, improved sleep, decreased seborrhea, reduced impotence, and increased appetite were observed after LT. LT permitted the reduction of the dose of L-dopa, bromocriptine, or deprenyl in some patients by up to 50% without loss of symptom control. Factors limiting the efficacy of LT included multiple disease states, treatment compliance, polypharmacy, emotional stress, advanced age, and predominance of positive symptoms. The results of this case series study confirms previous work describing light as efficacious in the treatment of PD and suggest that controlled trials may help to elucidate how LT might be used strategically as an adjunct therapy to improve the morbidity of PD patients.
Point Cloud to CAD Model Registration Methods in Manufacturing Inspection (2006)

Modern computer vision and coordinate metrology systems provide an ever-increasing flow of information from the physical world we live in to the virtual world inside computer systems. Often the coordinate system of the metrology device has a different coordinate frame from that of the existing objects in the virtual world. To rectify these differences, a process called registration is often applied. This paper uses a case study to highlight the differences between various registration techniques.
Site-Specific Nucleation and Growth Kinetics in Hierarchical Nanosyntheses of Branched ZnO Crystallites (2006)

Here we report a site-specific sequential nucleation and growth route to the systematic building of hierarchical, complex, and oriented ZnO micro/nanostructures in solution nanosynthesis. Structures and morphologies of the products were confirmed by results from X-ray diffraction and scanning electron microscopy studies. The organic structure-directing agents (SDAs), diaminopropane and citrate, are found to play different roles in controlling the evolution of these new morphologies. Through the selective adsorptions of SDAs on different crystal facets of the primary ZnO rods, we have alternated the hierarchical growth of secondary and tertiary new complex nanostructures. Roles of the SDA concentration, nucleation time, and growth kinetics in the solution hierarchical ZnO nanosyntheses have all been systematically investigated.
The impact of frequency mixing on sheath properties: Ion energy distribution and Vdc∕Vrf interaction (2005)

A dual frequency rf sheath is analyzed using a simple rf sheath model to study the interaction between the two driving rf currents and their effect on sheath parameters. A symmetric rf discharge with defined electron density and dc sheath potential is modeled using a sharp boundary sheath approximation. Three results of this study are reported: (1) reproduction of trends in ion energy distribution functions predicted and measured in previous studies, (2) a frequency-mixing-dependent relationship between the dc sheath potential and applied rf potential, and (3) an additional asymmetry in the ion energy distribution function generated by the intermodulation components resulting from the nonlinear sheath.
SPEED routing protocol in 6LoWPAN networks (2011)

The integration of the Wireless Sensor Networks (WSNs) technology in the Internet world is one of the biggest challenges to enable the Internet of Things (IoT) vision. In order to really benefit of such kind of integration the IPv6 addressing method and communication protocols adopted in the IoT must be modified to match the WSNs scenario. This adaptation has been standardized with the name of IPv6 over Low power Wireless Personal Area Networks (6LoWPAN). In this paper the first adaptation of the SPEED geographic routing algorithm in a 6LoWPAN scenario is presented and its experimental validation in a real testbed is shown as compared with the AODVprotocol. Avoiding route creation time and showing reduced memory occupation, load balancing and flow shaping properties SPEED is an effective solution to support packet routing in 6LoW-PAN networks.
Treatment of Electroplating Waste-Waters by Alkaline Ferrous Reduction of Chromium and Sulfide Precipitation (1983)

Abstract : The Air Force operates a number of electroplating facilities in support of weapons systems maintenance. These range from small, three- to four-bath operations to very large, 40,000-square foot, shops. This laboratory and pilot scale research effort was undertaken to develop simple treatment operations applicable to the small Air Force plating shops and improve the waste treatment at the large facilities. Treatment of wastewaters containing chromium, nickel, and cadmium was investigated using both synthetic and actual plating baths. The major results of this effort are as follows: Hexavalent chromium can be rapidly reduced and precipitated at alkaline pH levels, by stoichiometric, point-source additions of ferrous sulfate and sodium sulfide. Background sulfide lowers the solubility of cadmium and nickel in solution except when cyanides are present. Due to complexing, cyanides blocked nickel, removed completely, and reduced the effectiveness of chromium and cadmium removal. When dilute wastes were treated, the only unit processes required were in-line chemical addition for chromium reduction and upflow sandfiltration. For concentrated wastes, a clarification step was included to ease the solids loading on the filter.
Detecting Soil Salinity in Alfalfa Fields using Spatial Modeling and Remote Sensing (2008)

A new methodology, which integrates field data, geographic information systems, remote sensing, and spatial modeling, was developed to accurately model soil salinity using statistical tools. Ground data from four alfalfa ( Medicago sativa L.) fields in the lower Arkansas River basin in Colorado were compared with data derived from Ikonos satellite images with a 4‐m resolution and Landsat satellite images with a 30‐m resolution. For each image, the combination of satellite image bands that had the best correlation with soil salinity was used. Three statistical models were applied to estimate soil salinity from remote sensing: the ordinary least squares (OLS) model, the spatial autoregressive (spatial AR) model, and a modified residual kriging model. A number of criteria were evaluated to select the best model. The results show that both the Ikonos and Landsat satellite images can be used to estimate soil salinity, and regardless of the source of the satellite image used, the modified kriging model provided the best estimates of soil salinity. Although the OLS model met most of the model selection criteria, in most cases it involved some autocorrelation among the residuals. When the same data were tested using the spatial AR model, most of the autocorrelation among the residuals was removed, but the R 2 was reduced. In the modified kriging model, where the kriged residuals were combined with the results of the OLS model, there were significant improvements in the R 2 for all cases tested in this study. Thus, this study shows that combining field data, geographic information systems, and remote sensing with strong statistical measures can significantly enhance the development of high‐quality soil salinity maps.