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Literatura académica sobre el tema "Science-Technology interactions"

Autor: Grafiati

Publicado: 12 de octubre de 2024

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Artículos de revistas sobre el tema "Science-Technology interactions"

Shibata, Kiyoshi. "Interactions among Science, Technology and Society ―1. “Science and Technology” to “Scientific Technology”―". Materia Japan 59, n.º 1 (1 de enero de 2020): 32–36. http://dx.doi.org/10.2320/materia.59.32.

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De Stefano, Domenico y Susanna Zaccarin. "Modelling Multiple Interactions in Science and Technology Networks". Industry & Innovation 20, n.º 3 (abril de 2013): 221–40. http://dx.doi.org/10.1080/13662716.2013.791130.

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Allen, K. W. "Acid-base interactions: Relevance to adhesion science and technology". International Journal of Adhesion and Adhesives 12, n.º 2 (abril de 1992): 123–24. http://dx.doi.org/10.1016/0143-7496(92)90035-t.

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Armour, D. G. "The science and technology of low-energy ion-surface interactions". Radiation Effects and Defects in Solids 164, n.º 7-8 (agosto de 2009): 424–30. http://dx.doi.org/10.1080/10420150902949381.

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Coursey, D. G. "Traditional Tropical Root Crop Technology: Some Interactions with Modern Science". IDS Bulletin 13, n.º 3 (22 de mayo de 2009): 12–20. http://dx.doi.org/10.1111/j.1759-5436.1982.mp13003003.x.

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Maclean, Joan. "Professional interactions: Oral communication skills in science, technology, and medicine". English for Specific Purposes 13, n.º 1 (1994): 105–9. http://dx.doi.org/10.1016/0889-4906(94)90031-0.

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Scanlon, Eileen. "Technology enhanced learning in science: interactions, affordances and design based research". Journal of Interactive Media in Education 2010, n.º 2 (22 de diciembre de 2010): 8. http://dx.doi.org/10.5334/2010-8.

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Bruck, D. y I. Thomas. "Interactions Between Human Behaviour and Technology: Implications for Fire Safety Science". Fire Technology 46, n.º 4 (10 de junio de 2010): 769–87. http://dx.doi.org/10.1007/s10694-010-0161-1.

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Anastopoulou, Stamatina, Mike Sharples y Chris Baber. "An evaluation of multimodal interactions with technology while learning science concepts". British Journal of Educational Technology 42, n.º 2 (21 de febrero de 2011): 266–90. http://dx.doi.org/10.1111/j.1467-8535.2009.01017.x.

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Prem, Erich. "Truth Emerging from Leading-Edge Art/Science/Technology Interaction". Leonardo 52, n.º 1 (febrero de 2019): 64–65. http://dx.doi.org/10.1162/leon_a_01470.

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The FEAT initiative organized and studied residencies of leading international artists in European Future and Emerging Technology projects. During the residencies, the artists closely collaborated with engineers and scientists on fundamental research in visionary areas of novel technologies, not solely as an artistic endeavor, but also to investigate effects of artistic engagement on technoscience. Effects of the collaboration are visible on many levels, including addressing fundamental questions about the technoscientific project objectives, ethical aspects and the aesthetics of scientific experiments. Interactions also resulted in long-term collaborations and opportunities for scientists to engage with artists in a shared effort to uncover truth.

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Tesis sobre el tema "Science-Technology interactions"

Zhou, Shuting. "Casein-phenolic interactions in food". Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103772.

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Protein-phenolic interactions are common in foods with reported effects on nutritional and functional properties of foods. The objectives of this research were to investigate the casein-phenolic acid interactions in a model system and in chocolate as a processed food product. Casein-phenolic acid interactions were induced by heat incubation of casein with protocatechuic acid or p-coumaric acid at 55 ℃ (pH 7, 2 h); caseins were isolated from milk chocolate and white chocolate by precipitating caseins at its isoelectric point (pH 4.6). Casein-phenolic complexes were identified using polyacrylamide gel electrophoresis (Native- and SDS-PAGE) and reversed-phase high performance liquid chromatography (RP-HPLC). Degree of hydrolysis of casein-phenolic complexes was investigated using tryptic hydrolysis; sodium dodecyl sulfate gel electrophoresis (SDS-PAGE) and reversed-phase high performance liquid chromatography (RP-HPLC) were used to identify the hydrolysates of casein-phenolic complexes. Total phenolic contents of original and defatted milk chocolate and casein isolated from milk chocolate (1.905, 1.644 and 1.018 mg/g respectively) were higher than those of original and defatted white chocolate and casein isolated from white chocolate (1.678, 0.723 and 0.000 mg/g respectively) respectively. Native- and SDS-PAGE results revealed that casein-phenolic interactions were induced by heat incubation and occurred during the processing of milk chocolate; minor changes in the migration of casein fractions and aggregation of casein subunits were observed after heat incubation of casein with protocatechuic acid and in casein isolated from milk chocolate; there is no observed change with Native- and SDS-PAGE electropherograms after casein incubated with p-coumaric acid and in casein isolated from white chocolate. In vitro hydrolysis of casein control (C), casein-protocatechuic acid complex (CPA), casein-p-coumaric acid complex (CCA), casein isolated from milk chocolate (CMC) and casein isolated from white chocolate (CWC) by trypsin showed degree of hydrolysis of 19.3 %, 18.6 %, 17.7 %, 10.4 % and 17.8 % respectively; SDS-PAGE revealed that the three major casein fractions α-, β- and κ-caseins in casein control, casein-protocatechuic acid complex, casein-p-coumaric acid complex and casein isolated from milk chocolate and white chocolate were hydrolyzed. Both protocatechuic acid and p-coumaric acid affected the peptide profiles of casein hydrolysates; the peptide profile of casein isolated from milk chocolate was affected by phenolic compounds.
Les interactions protéine-phénols sont courantes dans les aliments. Les études rapportent que ces interactions affectent les propriétés nutritionnelles et fonctionnelles des aliments. Les objectifs de cette recherche étaient d'étudier les interactions caséine-acides phénols dans un système modèle et dans un produit transformé à base de chocolat. Les interactions caséine-acides phénols ont été induites par la chaleur suite à une incubation de la caséine avec de l'acide protocatéchique ou de l'acide p-coumarique à 55 ℃ (pH 7, 2 h); les caséines ont été isolés du chocolat au lait et chocolat blanc en précipitant les caséines à son point isoélectrique (pH 4,6). Les complexes à base de caséine-phénolique ont été identifiés par électrophorèse en gel de polyacrylamide (non dénaturante et SDS-PAGE) et par la chromatographie en phase liquide à haute performance en phase inversée (CLHP-PI). Le degré d'hydrolyse des complexes caséine-phénoliques a été étudié par hydrolyse tryptique; l'électrophorèse en gel de polyacrylamide contenant du laurylsulfate de sodium (SDS-PAGE) et la chromatographie en phase liquide à haute performance en phase inversée (CLHP-PI) ont servi à identifier les hydrolysats des complexes à base de caséine-phénolique. Le contenu en phénols totaux du chocolat au lait d'origine et sans gras et de la caséine isolée de chocolat au lait (1,905, 1,644 et 1,018 mg / g respectivement) était plus élevé que celui du chocolat blanc original et sans gras et de la caséine isolée de chocolat blanc (1.678, 0.723 et 0,000 mg / g respectivement), respectivement. Les résultats de la chromatographie non dénaturante et SDS-PAGE ont révélé que les interactions caséine-phénols ont été induites par une incubation à la chaleur et sont survenues pendant le procédé du chocolat au lait; des changements mineurs dans la migration des fractions de caséine et de l'agrégation de sous-unités de caséine ont été observés après une incubation à la chaleur de la caséine avec de l'acide protocatéchique et dans la caséine isolée de chocolat au lait; il n'y a pas de changement observé avec les électrophérogrammes non dénaturante et SDS-PAGE après que la caséine ait été incubée avec de l'acide p-coumarique ni avec la caséine isolée à partir de chocolat blanc. L'hydrolyse in vitro de la caséine de contrôle (C), du complexe caséine-acide protocatéchique (CPA), du complexe caséine-acide p-coumarique (CCA), de la caséine isolée du chocolat au lait (CMC) et de la caséine isolée du chocolat blanc (CWC) par la trypsine ont montré un degré d'hydrolyse de 19,3%, 18,6%, 17,7%, 10,4% et 17,8% respectivement; SDS-PAGE a révélé que les trois principales fractions de caséine α-, β- et κ-caséine dans la caséine contrôle, le complexe caséine-acide protocatéchique, le complexe caséine-acide p-coumarique et la caséine isolée du chocolat au lait et du chocolat blanc ont été hydrolysées. L'acide protocatéchique et l'acide p-coumarique ont affecté le profil en peptides de la caséine; le profil en peptides de la caséine isolée de chocolat au lait a été affecté par les composés phénoliques.

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Hassan, Mohamed S. A. "Egg protein interactions with phenolic compounds: effect on protein properties". Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=117210.

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Interactions of egg proteins (ovalbumin, conalbumin, egg white proteins, and egg yolk proteins) with selected phenolic compounds (flavone, chrysin, quercetin, and rutin) in aqueous media were examined by electrophoresis and fluorescence spectrophotometry. SDS-PAGE and native-PAGE results showed variable changes on the electrophoretic behaviour of egg white proteins in the presence of quercetin, while conalbumin-phenolic reaction products showed interactions under non-reducing conditions only. Fluorescence quenching technique was used to investigate the nature of egg protein-phenolic interactions and to estimate the effect of glycosylation and hydroxylation of phenolic compounds on the affinity to egg proteins. Stern-Volmer data revealed that the mechanism of egg protein-phenolic interactions is the static quenching and suggest that the diffusion does not play a role in fluorescence quenching in egg protein-phenolic interactions; the binding data analysis suggests that glycosylation and hydroxylation of phenolic compounds lower the affinity to egg proteins. Fluorescence quenching results showed that fluorescence intensity of egg proteins decreased with increasing concentration of phenolics. Enzymatic hydrolysis of egg protein-phenolic products assessed by using trypsin-chymotrypsin mixture and bacterial protease revealed that in vitro egg protein digestion was adversely affected by the interaction of phenolics. Proteins extracted from muffin mixture with added phenolics were investigated by electrophoresis techniques and enzymatic hydrolysis. SDS-PAGE results showed changes in electrophoretic patterns of ovalbumin. In vitro enzymatic hydrolysis of proteins extracted from the muffin was adversely affected by the addition of phenolics.
Les interactions de protéines d'œuf (ovalbumine, conalbumine, protéines de blanc d'oeuf, protéines de jaune) avec des composés phénoliques sélectionnés (flavone, chrysine, quercétine et rutine) dans des milieux aqueux ont été examinées par électrophorèse et spectrofluorométrie. Les résultats de native-PAGE et SDS-PAGE ont montré des changements variables sur le comportement électrophorétique des protéines du blanc d'œuf en présence de la quercétine, tandis que les produits de réaction entre conalbumine et phénoliques ont montré des interactions dans des conditions non réductrices seulement. La technique extinction (quenching) de la fluorescence a été utilisé pour étudier la nature des interactions protéines d'oeuf et phénoliques, et pour estimer l'effet de la glycosylation et l'hydroxylation de composés phénoliques sur l'affinité à la protéine d'oeuf. Les données de Stern-Volmer ont révélé en utilisant un quencher « desactivateur » que le mécanisme d'interactions entre la protéine d'œuf et les composées phénoliques est de type électrostatique et suggère que la diffusion ne joue pas un rôle dans l'extinction de la fluorescence en présence d'interactions protéines d'œuf et composés phénoliques. L'analyse des données « binding » soit des liaisons, suggère que la glycosylation et l'hydroxylation des composés phénoliques réduit l'affinité pour les protéines d'oeuf. Les résultats de l'extinction de la fluorescence ont montré que l'intensité de fluorescence des protéines de l'œuf diminue avec l'augmentation de la concentration des composés phénoliques. Les produits d'hydrolyses enzymatiques des complexes protéines d'oeuf-composés phénoliques évaluées suite à une protéolyse par un mélange trypsine-chymotrypsine et de la protéase bactérienne ont révélé que la digestion in vitro des protéines d'oeuf a été affectée négativement par l'interaction des composés phénoliques. Les protéines extraites du mélange à muffins enrichis en composés phénoliques ont été étudiés par des techniques d'électrophorèse et d'hydrolyse enzymatique. Les résultats du SDS-PAGE ont montré des changements dans le modèle électrophorétique de l'ovalbumine. L'hydrolyse enzymatique in vitro des protéines extraites du muffin a été affectée négativement par l'ajout de composés phénoliques.

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Grygorczyk, Alexandra. "Biophysical studies of milk protein interactions in relation to storage defects in high protein beverages". Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66897.

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Much like Ultra High Temperature (UHT) processed milk, UHT processed high protein beverages suffer from storage defects including gelation and sedimentation. Although these beverages are made with milk proteins, the food system is very different and much more complex from that of milk. Thus, one cannot assume that the mechanism of development of storage defects is the same as in milk. As such, the goal of this project was to investigate the factors affecting storage stability of high protein beverages. As a first step, a method was developed to facilitate the study of milk protein solutions by Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) Spectroscopy. Scanning the proteins in solution followed by subtraction of the contribution to the absorbance by water provided the most reliable and repeatable results. Next, the suitability of the data for various forms of spectral enhancement was assessed. Finally the method was applied in a series of experiments in order to determine if the data could provide numerical information. Thermodynamic data for heating of β-lactoglobulin was obtained using three methods: transmission-FTIR spectroscopy in D2O, ATR-FTIR spectroscopy in D2O and in H2O. All techniques provided equivalent results, indicating that analyzing proteins in water by ATR-FTIR spectroscopy can be used to provide quantitative information. A number of different protein products (α-lactalbumin, β-lactoglobulin, calcium caseinate, WPC, WPI, MPC, MPI) and combinations of these proteins were UHT processed and their storage stability was observed. Unfortunately, the changes were too subtle to be detected by FTIR spectroscopy and we had to rely more heavily on visual observations. From these observations it was determined that altering the protein combinations did not prevent sedimentation of caseinates. However, the presence of β-lactoglobulin changed the consistency of the sediment. Additionally, it was
Tout comme dans le cas du lait ultra haute température (UHT), les protéines contenues des les breuvages hyper protéinés sont affectées par le traitement à haute température. Ce type de traitement thermique mène à la formation de gel et de sédiments dans ces boissons. Bien que ces breuvages soient à base de protéines laitières, la composition chimique de ces boissons demeure très différente et beaucoup plus complexe que celle du lait. Ainsi, on peut supposer que le mécanisme de formation menant à des défauts de conservation est différent de celui du lait ultra haute température. Le but de ce projet était de se familiariser avec les facteurs affectant la stabilité de conservation des breuvages hyper protéinés.La première étape du projet consistait à développer une méthode pour étudier les solutions hyper protéinées à base de lait en utilisant la spectroscopie infrarouge à transformée de Fourier en réflectance totale atténuée (RTA-IRTF). Il a été déterminé que le balayage des protéines en solution suivi d'une soustraction du spectre de l'eau était la méthode la plus fiable et la plus reproductible. Une fois l'acquisition des données brutes complétée, celles-ci étaient transformées par amélioration spectrale et évaluées pour déterminer si elles pouvaient être utilisées de manière quantitative. Les données thermodynamiques sur le chauffage de la β-lactoglobuline ont été obtenus en utilisant trois méthodes: IRTF à transmission dans D2O, RTA-IRTF dans D2O et dans H2O. Ces trois méthodes ont produit des résultats équivalents indiquant que de l'information quantitative pouvait être obtenue lors de l'analyse des protéines en solution aqueuse en utilisant la spectroscopie RTA-IRTF. Un traitement UHT a été appliqué sur différentes permutations de protéines et nous avons essayé de suivre le vieillissement des protéines avec la méthode développée. Malheureusement

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Ponomariov, Branco Leonidov. "Student Centrality in University-Industry Interactions". Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11633.

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This thesis proposes and estimates a model of university scientists interactions with the private sector; in this model students are conceptualized as an important enabler of such interactions. The results of the study show that university scientists student-related behaviors such as grant support of students and research collaboration with students, and student-related attitudes such as mentoring orientation positively affect the probability that scientists will enter interactions with industry as well as the intensity of such interactions. Behaviors such as teaching and advising of students are not related to interactions with industry. This study is motivated by the increased emphasis on closer relationships between universities and industry as a means to facilitate the commercial application of university research. Today, numerous policies and programs attempt to achieve such goals. As a result, university scientists are called on to perform many tasks which on the surface seem misaligned. There is substantial study of conflict between the teaching and research missions of universities, and a growing body of study on conflict related to university based commercial and technology transfer related activities. Fewer, there are studies suggesting that these activities are not so misaligned after all. This study falls into the latter category as it posits a complementary relationship between university scientists student related activities and their work related interactions with industry, research and otherwise. Speculations regarding the importance of students in university industry relations and indirect evidence are scattered through the relevant literature, but little or no systematic empirical tests of their importance exist. This study uses data from a national survey of university researchers to discern the centrality of students to university-industry interactions. Theoretically, students are conceptualized as a dimension of university scientists respective research capacities that enable cross-sectoral processes of accumulative advantage and thereby help to enable their interactions with industry. As a component of scientists scientific and technical human capital, students help university scientists to identify and act upon on research opportunities originating in the private sector. Moreover, students increase the appeal of university scientists to industry agents seeking research partners in academe. Implications for theory and policy are discussed.

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Charlesworth, Scott. "Design of photo-switchable self-assembled monolayers for the study of protein-receptor interactions". Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3847/.

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Nano-biotechnology combines recent advances in nanotechnology with biology. It is a relatively new discipline and full of promise. One such promise is the elucidation of complex bio-molecular reactions and interactions, the elucidation of which requires the development of reliable in-vitro models. Such models could be developed through the use of self-assembled monolayer’s (SAMs). Research into this competitive field has already started and there is currently a call to develop SAMs which present specific bio-molecules in a switchable fashion; switchable SAMs can have their surface properties switched between two states, i.e. they can be switched ‘on’ or ‘off’. Such switch-ability would help such models mimic the real time changes of the bodies’ bio-chemistry and is a vital development. This thesis addresses this current research need, through the employment of azobenzene based SAMs. Currently the switch-ability (isomerisation) of numerous azobenzene SAMs has been shown to be hindered by a lack of inter-surfactant space. This hindrance to isomerisation is addressed in Chapter 4. While Chapter 5 explores the design of an azobenzene based photo-switchable SAM, for use as in-vitro model for the study of bio-molecular interactions. The two chapters are not directly related and future work would aim to bring the findings together.

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Aglieri, Vincenzo. "TAPERING RESONANT NANOANTENNAS FOR ENHANCED THz LIGHT – NANOMATTER INTERACTIONS". Doctoral thesis, Università degli Studi di Palermo, 2020. http://hdl.handle.net/10447/426934.

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Nel corso degli ultimi decenni la tecnologia terahertz (THz) è diventata un fruttuoso campo di ricerca grazie alla spinta ricevuta dal desiderio di sfruttarne le promettenti applicazioni in questa porzione dello spettro elettromagnetico. La biologia, la medicina e l’ingegneria sono soltanto alcuni dei settori che guardano con interesse alle ultime scoperte nella ricerca sulle onde THz. Questo enorme interesse nasce dalle peculiari proprietà di tali onde, come ad esempio: il carattere non ionizzante, l’opacità di svariati materiali solitamente trasparenti in altri intervalli di frequenze e per le potenziali ricadute positive nel campo della tecnologia dell’informazione. Una fra le applicazioni più interessanti consiste nell’uso delle onde THz per la spettroscopia. Infatti molti materiali presentano delle risonanze in questo campo di radiazione, e il loro studio darebbe accesso a molte e preziose informazioni che potrebbero svelare proprietà della materia ancora sconosciute. Per molti anni, tali risonanze non sono state studiate a causa della relativamente grande lunghezza d’onda corrispondente alla radiazione THz (~300 μm a 1 THz) da cui conseguiva una scarsa efficienza di accoppiamento con oggetti di dimensioni nanometriche. Tuttavia grazie alle antenne plasmoniche, che sono in grado di localizzare la luce assorbita in uno spazio il cui volume è inferiore alla lunghezza d’onda coinvolta, noto come volume modale, è possibile far interagire le onde THz con delle nano-particelle. Tale metodo ha migliorato a tal punto l’efficienza di assorbimento delle nano-particelle della radiazione THz che è stato reso possibile recuperare informazioni spettroscopiche della materia a cui prima non si aveva accesso. Inoltre grazie a questa tecnica è possibile effettuare proficuamente molti altri esperimenti nel regime THz, come ad esempio quelli sull’accoppiamento forte tra radiazione e materia. Cionondimeno le prestazioni delle antenne plasmoniche non sono ottimali e possono essere ulteriormente migliorate per aumentare il “field enhancement”, cioè il tasso di incremento del campo elettrico ottenuto dal confinamento generato dalle antenne plasmoniche all’interno del volume modale, che a sua volta influisce fortemente sull’efficienza e la qualità degli esperimenti nel regime THz. In questa tesi viene presentata una strategia per il miglioramento delle prestazioni di nano-antenne (NA) THz sia in termini di field enhancement che di volume modale. Tale strategia consiste nell’attenta rastremazione di NA cilindriche in oro, così da formare dei coni troncati. Per prima cosa, mostro attraverso un modello quasi-analitico che tale strategia, per mezzo di un angolo ottimo di rastremazione, permette di ottenere un miglioramento considerevole delle prestazioni. Successivamente il metodo di rastremazione delle antenne viene validato attraverso l’uso di un simulatore software, col quale vengono simulate coppie di antenne a diversi angoli di rastremazione, separate da un gap di 30 nm e risonanti attorno a 1 THz. Da tale studio si trova che in corrispondenza dell’angolo ottimo, le NA rastremate mostrano il doppio di field enhancement e un volume modale sette volte inferiore a quello offerto da una antenna non rastremata. Lo stesso software è utilizzato per ricavare il design di cinque campioni per la fabbricazione. Su tali campioni è stata eseguita una caratterizzazione ottica nel THz attraverso un sistema di spettroscopia THz nel dominio del tempo (THz-TDS), e il risultato è in accordo con i risultati simulati ottenuti durante il design degli stessi, confermando la validità degli studi teorici. Nell’ultima parte di questa tesi viene mostrata anche l’applicazione di questo metodo per il miglioramento della risposta delle antenne moon (caratterizzate da una geometria alternativa a forma di luna) realizzate nell’ambito di esperimenti di accoppiamento forte radiazione-materia. Inoltre lo stesso metodo viene qui mostrato essere valido anche in altri regimi di frequenza, in particolare nell’infrarosso.
In the last decades, Terahertz (THz) technology has become a fruitful research field thanks to the promise of outstanding applications. Industry, biology, medicine and engineering are only a part of the technological sectors looking into THz researches for the latest advances. Such hectic interest born from the peculiar and unique properties of the THz waves, such as the non-ionizing character, the transparency of many materials usually opaque in other frequency ranges, and the potentiality offered for information technologies, among others. One of the most promising application is spectroscopy. In fact, many materials and compounds present elementary excitation features in the THz regime. For many years, such features could not be exploited with nanosystems because of the poor efficiency with which the long wavelength associated to THz radiation (~300 μm at 1 THz) interacts with nano-sized objects (10 nm). However, thanks to plasmonic antennas, capable of localizing light in sub-wavelength volumes, it has become possible to make the long THz wave interacting with nano-particles. Such method greatly enhances nano-particle absorption allowing to retrieve spectroscopic information of nanomatter previously not accessible. Moreover, light-nanomatter interaction experiments are now possible in THz regime giving access to, e.g., strong THz light-nanomatter coupling studies. Nevertheless, the performance of plasmonic antennas can be still improved to increase the field enhancement and reduce the mode volume, which in turn impact sensing and light-matter coupling efficiency. In this thesis, a strategy is presented to improve THz nanoantenna (NA) performance in terms of near field enhancement and mode volume reduction. First, I qualitatively show through a quasi-analytical model that by judiciously tapering gold NAs, an appreciable increase of the near field at the tip can be achieved. The method is also validated through extensive finite element method simulations, where gold bow-tie NA pairs, resonating at 1 THz and coupled by a 30-nm-wide gap, show a more than two-fold enhanced near field and a seven-fold reduced mode volume in the gap when tapered with an optimum angle. Five samples at different tapering angles have been fabricated and characterized to experimentally validate such method. The THz time domain spectroscopy (THz-TDS) characterizations revealed a good agreement with the simulation results, confirming the validity of the theoretical studies. In the last part of this thesis, it is shown how this method can be effectively extended to other geometries, in particular to realize “moon-shaped” NAs suitable for improved strong coupling experiments. Moreover, it is also numerically demonstrated the applicability of this method to higher frequencies, up to the infrared (IR) range.

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Mira, Isabel. "Interactions between surfactants and starch : from starch granules to amylose solutions". Doctoral thesis, Stockholm : Chemical Science and Engieering, KTH : Ytkemiska institutet, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4123.

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Holmquist, Stephanie. "A multi-case study of student interactions with educational robots and impact on Science, Technology, Engineering, and Math (STEM) learning and attitudes". Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5043.

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The demand for STEM trained workers continues to increase not only in the United States, but globally. Reports have indicated that the United States is not doing a good job encouraging students to pursue STEM oriented degrees. In particular, it has become increasingly important to emphasize STEM connections at an early level in order to encourage student career exploration as they continue their education. Educational robots represent a unique alternative to traditional methods, especially at the elementary level. Considering the use of educational robots have largely been ignored at this level, the purpose of this study was to describe the interactive process and outcomes using educational robots to facilitate elementary school students understanding of STEM concepts. A multi-case approach was used for the design as it is in line with the underlying conceptual framework for the study. Independent T-tests were utilized to determine student's interaction with educational robots, impact of STEM understanding, as well as their impact regarding the understanding of STEM attitudes. The study was conducted as an extracurricular program involving fourth grade students at a rural elementary school in Florida. The sample size consisted of 20 randomly selected participants assigned to either the group working with robots, or the groups without the robots, for a total of 10 participants in each group. The associated activity utilized in this study was selected due to the high level of STEM integration. Data results indicated high levels of interactivity within both groups. The group working with the robot demonstrated a significant difference in the level of substantive talk. Considering the understanding of STEM concepts, both groups demonstrated a high level regarding depth of knowledge as well as understanding. There were significant gains within groups regarding pre and post test STEM scores. When considering participants impact on STEM attitudes, the study suggested a practical significance in math attitudes for the group working with the robots. This study is significant as it yielded valuable information concerning the use of educational robots in the elementary environment. In particular, this study supports the idea that STEM concepts can be promoted utilizing authentic instructional strategies. This study suggests there is a potential impact regarding the use of educational robots in the elementary setting. This study also supported the use of authentic assessment strategies for this type of activity. Overall, both groups were actively involved and engaged, with the group working with the robot demonstrating a slightly higher depth of knowledge, substantive, conversation, as well as a slight boost in efficacy in math, science, and engineering and technology attitudes. The results of the study align with the underlying conceptual framework as well as the use of authentic assessment. This study aligns to the movement to promote STEM education at an elementary level. In addition, the type of activity associated with this study can potentially help students make sense of career oriented experiences, thus promoting career awareness within an interdisciplinary approach.

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Seby, Jean-Baptiste. "Networked interactions, graphical models and econometrics perspectives in data analysis". Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/129081.

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Thesis: S.M. in Technology and Policy, Massachusetts Institute of Technology, School of Engineering, Institute for Data, Systems, and Society, Technology and Policy Program, September, 2020
Thesis: S.M. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, September, 2020
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 231-243).
This thesis is composed of two independent parts. In Part I, we study higher-order interactions in both graphical models and networks, i.e., interactions between more than two nodes. In the graphical model setting, we do not assume that interactions are known and our goal is to recover the structure of the graph. Our main contribution is an algebraic criterion that enables us to determine whether a set of observed variables have a single cause or multiple causes. We also prove that this criterion holds in the presence of confounders, i.e., when the causes are hidden. In the network setting, we assume that the structure of the graph is known. Our objective is then to identify what kind of information about data can be learned from the analysis of higher-order interactions. More precisely, using the generalization of the normalized Laplacian and random walks on graphs to simplicial complexes, we study a simplicial notion of PageRank centrality as defined in [Schaub et al., 2018].
Conducting numerical experiments on both synthetic and true data, we find evidence that the so-called edge PageRank is related to the concepts of local and global bridges in networks. In Part II, we analyze the determinants of yield gaps in Semi-Arid Tropics (SAT) regions in India. Analyzing a panel data of households within 30 villages over 6 years in India, we apply a fixed effects estimation method and a quantile regression with fixed effects to identify the most significant explanatory variables of yield gaps for 5 different crops. Using a correlated random effects estimator for unbalanced panel data, we can also estimate coefficients for time-invariant variables. We find that yield gaps determinants are crop specific. In addition to that, soil characteristics show the most significant effects on output rate. When statistically significant, correlations with the type of soil are negative. This result might suggest that the choice of cropping pattern is not necessarily appropriate.
Finally, results suggest that unobservable heterogeneity of households is critical in explaining farm productivity. Time-invariant variables hardly explain this heterogeneity for which more research is needed.
by Jean-Baptiste Seby.
S.M. in Technology and Policy
S.M. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science
S.M.inTechnologyandPolicy Massachusetts Institute of Technology, School of Engineering, Institute for Data, Systems, and Society, Technology and Policy Program
S.M.MassachusettsInstituteofTechnology,DepartmentofElectricalEngineeringandComputerScience

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Abdallah, Athumani Ngenya. "Characterization of tick-born encephalitis and West Nile virus non-structural 5 protein interactions with host factors involved in immune evasion and cellular apoptosis". Thesis, Örebro universitet, Institutionen för hälsovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-50552.

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Libros sobre el tema "Science-Technology interactions"

Jay, Ingram, Alexander Nora y Martha Josef, eds. Investigating science and technology 7: [interactions in the environment]. [Toronto]: Pearson, 2008.

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Matthews, Candace. Professional interactions: Oral communication skills in science, technology, and medicine. Englewood Cliffs, N.J: Prentice Hall Regents, 1990.

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Hastings, Daniel. Spacecraft--environment interactions. Cambridge: Cambridge University Press, 1996.

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Allmen, M. Von. Laser-beam interactions with materials: Physical principles and applications. Berlin: Springer-Verlag, 1987.

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Allmen, M. Von. Laser-beam interactions with materials: Physical principles and applications. 2^a ed. Berlin: Springer, 1995.

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1958-, Lanno Roman P. y SETAC (Society), eds. Contaminated soils: From soil-chemical interactions to ecosystem management. Pensacola, FL: Society of Environmental Toxicology and Chemistry, 2001.

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M, Rossnagel Stephen, Cuomo J. J y Westwood William D. 1937-, eds. Handbook of plasma processing technology: Fundamentals, etching, deposition, and surface interactions. Park Ridge, N.J., U.S.A: Noyes Publications, 1990.

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F, Graf John y Painter Paul C, eds. Specific interactions and the miscibility of polymer blends: Practical guides for predicting & designing miscible polymer mixtures. Lancaster, Pa., U.S.A: Technomic Pub. Co., 1991.

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Zelʹdovich, B. I͡A. Speckle-wave interactions in application to holography and nonlinear optics. Boca Raton: CRC Press, 1995.

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Hettiarachchy, Navam S. Food proteins and peptides: Chemistry, functionality, interactions, and commercialization. Boca Raton, FL: Taylor & Francis, 2012.

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Capítulos de libros sobre el tema "Science-Technology interactions"

Okada, Tomohiko y Makoto Ogawa. "Inorganic–Organic Interactions". En Nanostructure Science and Technology, 163–86. Tokyo: Springer Japan, 2017. http://dx.doi.org/10.1007/978-4-431-56496-6_6.

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Lawless, Christopher. "Law–science interactions and new technology". En Forensic Science, 79–93. 2^a ed. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003126379-6.

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Kherani, N. P. y W. T. Shmayda. "Tritium Materials Interactions". En Eurocourses: Nuclear Science and Technology, 85–105. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1910-8_4.

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Nicolais, L., J. M. Kenny, A. Maffezzoli, L. Torre y A. Trivisano. "Science and Technology of Polymer Composites". En The Interfacial Interactions in Polymeric Composites, 321–57. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1642-8_15.

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Bott, T. R. y L. F. Melo. "Particle-Bacteria Interactions in Biofilms". En Biofilms — Science and Technology, 199–206. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1824-8_19.

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Allison, D. G. "Polysaccharide Interactions in Bacterial Biofilms". En Biofilms — Science and Technology, 371–76. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1824-8_31.

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Noy, Aleksandr. "Interactions at solid–fluid interfaces". En Nanostructure Science and Technology, 57–82. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4419-9046-4_3.

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Cooksey, K. E. "Bacterial and Algal Interactions in Biofilms". En Biofilms — Science and Technology, 163–73. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1824-8_16.

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Tsukerman, Igor. "Long-Range Interactions in Free Space". En Nanostructure Science and Technology, 243–84. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43893-7_5.

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Tsukerman, Igor. "Long-Range Interactions in Heterogeneous Systems". En Nanostructure Science and Technology, 285–355. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43893-7_6.

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Actas de conferencias sobre el tema "Science-Technology interactions"

Li, Danyu, Yunci Ma, Jinhuang Chen y Jiedong Xie. "Using Bipartite Graph Embedding and Deep Learning Method Predicting RNA Protein Interactions". En 2024 7th International Conference on Computer Information Science and Application Technology (CISAT), 1022–25. IEEE, 2024. http://dx.doi.org/10.1109/cisat62382.2024.10695327.

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M. S., Khairetdinov y Kovalevsky V. V. "SEISMIC VIBRATORS IN THE STUDY OF INTERWAVE INTERACTIONS". En Mechanical Science and Technology Update. Omsk State Technical University, 2022. http://dx.doi.org/10.25206/978-5-8149-3453-6-2022-15-22.

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The problem of studying the interactions of different geophysical fields is very relevant in terms of predicting geoecological risks caused by environmentally hazardous man-made and natural events - earthquakes, powerful landfill and quarry explosions, transport noise, etc. The problem of interaction of fields by the authors is considered as optimizing in order to identify determining factors in the problem of mutual transformation of geophysical fields. The authors proposed and investigated the vibration method of studying the problem of interaction of geophysical fields of different nature-seismic, acoustic, hydroacoustic, meteorological. Due to the high metrological and ecological characteristics of seismic vibrators, high accuracy and repeatability of research results in this area, as well as their high environmental friendliness in comparison with traditional explosions, are achieved. The results of the studies are substantiated theoretically and experimentally.

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Thibault, J. F., A. Zykwinska, M. Ralet y C. Garnier. "Interactions between pectin and cellulose". En 13th World Congress of Food Science & Technology. Les Ulis, France: EDP Sciences, 2006. http://dx.doi.org/10.1051/iufost:20061224.

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van Thiel, M. y F. H. Ree. "Unlike pair interactions in N2-H2O mixtures". En High-pressure science and technology—1993. AIP, 1994. http://dx.doi.org/10.1063/1.46225.

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Klette, Reinhard y Jovisa Zunic. "Interactions between number theory and image analysis". En International Symposium on Optical Science and Technology, editado por Longin J. Latecki, David M. Mount y Angela Y. Wu. SPIE, 2000. http://dx.doi.org/10.1117/12.404823.

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Chen, Mu-San, Walter J. Dressick, Terence L. Schull y Susan L. Brandow. "Chemical modification of surfaces utilizing noncovalent interactions". En Workshop on Nanostructure Science, Metrology, and Technology, editado por Martin C. Peckerar y Michael T. Postek, Jr. SPIE, 2002. http://dx.doi.org/10.1117/12.437739.

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Campbell, D. K., M. P. Gelfand, H. Q. Lin y S. L. Sondhi. "Electron-electron interactions in superconducting fullerides". En International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.835035.

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Hendy, Keith C., Jack L. Edwards y David Beevis. "Modeling human-machine interactions for operations room layouts". En International Symposium on Optical Science and Technology, editado por Patricia Hamburger. SPIE, 2000. http://dx.doi.org/10.1117/12.407541.

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Lee, John P. y Georges G. Grinstein. "Describing visual interactions to the database: closing the loop between user and data". En Electronic Imaging: Science & Technology, editado por Georges G. Grinstein y Robert F. Erbacher. SPIE, 1996. http://dx.doi.org/10.1117/12.234659.

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Liu, Xiangpeng, Yunfei Yang y Kedong Zhao. "Design and Simulation Beam-Wave Interactions of 263GHz Extended Interaction Klystron For Dynamic Nuclear Polarization". En 2023 Cross Strait Radio Science and Wireless Technology Conference (CSRSWTC). IEEE, 2023. http://dx.doi.org/10.1109/csrswtc60855.2023.10427082.

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Informes sobre el tema "Science-Technology interactions"

Southwell, Brian, Angelique (Angel) Hedberg, Christopher Krebs y Stephanie Zevitas, eds. Building and Maintaining Trust in Science: Paths Forward for Innovations by Nonprofits and Funding Organizations. RTI Press, septiembre de 2019. http://dx.doi.org/10.3768/rtipress.2019.cp.0010.1909.

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In July 2019, participants gathered in Research Triangle Park, North Carolina, for an event organized by RTI International called Trust in Science. Our goal with the Trust in Science event was to foster collaborations and strengthen connections between nonprofit and funding organizations to address trust-related challenges that are affecting science and scientists. Collaboration between professionals and organizations is easy to cite as an abstract goal but can be challenging to pursue in practice for various reasons. Participants generated and considered both broad challenges and specific contexts in which trust has been strained. We discussed, for example, the use of wearable technologies for data collection, vaccine acceptance, biofuel research, survey research on topics such as sexual harassment monitoring, tools to help people navigate online information, and the development of physical spaces for local community discussion about science and technology. We offer an overview of key themes and ideas that emerged from our interactions. We hope that readers will consider this an open-source set of suggestions for future initiatives and innovations.

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Kiv, Arnold E., Vladyslav V. Bilous, Dmytro M. Bodnenko, Dmytro V. Horbatovskyi, Oksana S. Lytvyn y Volodymyr V. Proshkin. The development and use of mobile app AR Physics in physics teaching at the university. [б. в.], julio de 2021. http://dx.doi.org/10.31812/123456789/4629.

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This paper outlines the importance of using Augmented Reality (AR) in physics education at the university as a valuable tool for visualization and increasing the attention and motivation of students to study, solving educational problems related to future professional activities, improving the interaction of teachers and students. Provided an analysis of the types of AR technology and software for developing AR apps. The sequences of actions for developing the mobile application AR Physics in the study of topics: “Direct electronic current”, “Fundamentals of the theory of electronic circuits”. The software tools for mobile application development (Android Studio, SDK, NDK, Google Sceneform, 3Ds MAX, Core Animation, Asset Media Recorder, Ashampoo Music Studio, Google Translate Plugin) are described. The bank of 3D models of elements of electrical circuits (sources of current, consumers, measuring devices, conductors) is created. Because of the students’ and teachers’ surveys, the advantages and disadvantages of using AR in the teaching process are discussed. Mann-Whitney U-test proved the effectiveness of the use of AR for laboratory works in physics by students majoring in “Mathematics”, “Computer Science”, and “Cybersecurity”.

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Canto, Patricia, ed. Learning Modes, Types of Innovation and Economic Performance. Universidad de Deusto, 2012. http://dx.doi.org/10.18543/xebj1954.

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This contribution focuses on a current heated debate on learning modes employed by the firms, and their impact on innovation and economic output. The interactive approach developed by the Scandinavian school on innovation systems characterized two key learning modes as „science and technology-based innovation? (STI) and „learning-by-doing, by-using and by-interacting-based innovation (DUI). This work analyzes first the separate and combined impact of such modes of learning and innovation on two types of innovation output: product and process. In this operation, this work produces interesting and challenging results. Moreover, this paper offers the original hypothesis that these learning modes have a differentiated impact on product and process innovation. Simultaneously, this contribution adds a further analytical element, which is the explicit connection to the capacity of firms to transform innovation output (product and process) in economic performance. A two-stage mode is formulated and applied in the context of an extensive database of Spanish manufacturing and service firms (PITEC). This allows implementing an original time-series analysis that leads to obtaining insightful results that question former analyses and might heat further the debate on the most effective learning and innovation modes applied by firms as a means to gain competitiveness in open markets.

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Shamonia, Volodymyr H., Olena V. Semenikhina, Volodymyr V. Proshkin, Olha V. Lebid, Serhii Ya Kharchenko y Oksana S. Lytvyn. Using the Proteus virtual environment to train future IT professionals. [б. в.], febrero de 2020. http://dx.doi.org/10.31812/123456789/3760.

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Based on literature review it was established that the use of augmented reality as an innovative technology of student training occurs in following directions: 3D image rendering; recognition and marking of real objects; interaction of a virtual object with a person in real time. The main advantages of using AR and VR in the educational process are highlighted: clarity, ability to simulate processes and phenomena, integration of educational disciplines, building an open education system, increasing motivation for learning, etc. It has been found that in the field of physical process modelling the Proteus Physics Laboratory is a popular example of augmented reality. Using the Proteus environment allows to visualize the functioning of the functional nodes of the computing system at the micro level. This is especially important for programming systems with limited resources, such as microcontrollers in the process of training future IT professionals. Experiment took place at Borys Grinchenko Kyiv University and Sumy State Pedagogical University named after A. S. Makarenko with students majoring in Computer Science (field of knowledge is Secondary Education (Informatics)). It was found that computer modelling has a positive effect on mastering the basics of microelectronics. The ways of further scientific researches for grounding, development and experimental verification of forms, methods and augmented reality, and can be used in the professional training of future IT specialists are outlined in the article.

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Bloch, G. y H. S. Woodard. regulation of size related division of labor in a key pollinator and its impact on crop pollination efficacy. Israel: United States-Israel Binational Agricultural Research and Development Fund, 2021. http://dx.doi.org/10.32747/2021.8134168.bard.

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Despite the rapid increase in reliance on bumble bees for food production and security, there are many critical knowledge gaps in our understanding of bumble bee biology that limit their colony production, commercial management, and pollination services. Our project focuses on the social, endocrine, and molecular processes regulating body size in the two bumble bee species most important to agriculture: Bombus terrestris in Israel, and B. impatiens in the USA. Variation in body size underline both caste (queen/worker) differentiation and division of labor among workers (foragers are typically larger than nest bees), two hallmarks of insect sociality which are also crucial for the commercial rearing and crop pollination services of bumble bees. Our project has generated several fundamental new insights into the biology of bumble bees, which can be integrated into science-based management strategies for commercial pollination. Using transcriptomic and behavioral approaches we show that in spite of high flexibility, task performance (brood care or foraging) in bumble bee colonies is associated with physiological variation and differential brain gene expression and RNA editing patterns. We further showed that interactions between the brood, the queen, and the workers determine the developmental program of the larva. We identified two important periods. The first is a critical period during the first few days after hatching. Larvae fed by queens during this period develop over less days, are not likely to develop into gynes, and commonly reach a smaller ultimate body size compared to workers reared mostly or solely by workers. The facial exocrine (mandibular and hypopharangeal) glands are involved in this queen effect on larva development. The second period is important for determining the ultimate body size which is positively regulated by the number of tending workers. The presence of the queen during this stage has little, if at all, influence. We further show that stressors such as agrochemicals that interfere with foraging or brood care specific processes can compromise bumble bee colony development and their pollination performance. We also developed new technology (an RFID system) for automated collection of foraging trip data, for future deployment in agroecosystems. In spite of many similarities, our findings suggest important differences between the Eurasian model species (B. terrestris) and the North American model species (B. impatiens) that impact how management strategies translate across the two species. For example, there is a similar influence of the queen on offspring body size in both species, but this effect does not appear to be mediated by development time in B. impatiens as it is in B. terrestris. Taken together, our collaboration highlights the power of comparative work, to show that considerable differences that exist between these two key pollinator species, and in the organization of young bumble bee nests (wherein queens provide the majority of care and then transition away from brood care) relative to later stages of nest development.

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Committee on Toxicology. COT FSA PBPK for Regulators Workshop Report 2021. Food Standards Agency, abril de 2024. http://dx.doi.org/10.46756/sci.fsa.tyy821.

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The future of food safety assessment in the UK depends on the Food Standards Agency’s (FSA) adaptability and flexibility in responding to and adopting the accelerating developments in science and technology. The Tox21 approach is an example of one recent advancement in the development of alternative toxicity testing approaches and computer modelling strategies for the evaluation of hazard and exposure (New Approach Methodologies (NAMs). A key aspect is the ability to link active concentrations in vitro to likely concentrations in vivo, for which physiologically based pharmacokinetic (PBPK) modelling is ideally suited. The UK FSA and the Committee on Toxicity of Chemicals in Food, Consumer Products, and the Environment (COT) held an “PBPK for Regulators” workshop with multidisciplinary participation, involving delegates from regulatory agencies, government bodies, academics, and industry. The workshop provided a platform to enable expert discussions on the application of PBPK to health risk assessment in a regulatory context. Presentations covered current application of PBPK modelling in the agrochemical industry for in vitro to in vivo extrapolation (IVIVE), pharmaceutical industry for drug absorption related issues (e.g., the effect of food on drug absorption) and drug-drug interaction studies, as well as dose extrapolations to special populations (e.g., those with a specific disease state, paediatric/geriatric age groups, and different ethnicities), environmental chemical risk assessment, an overview of the current regulatory guidance and a PBPK model run-through. This enabled attendees to consider the wide potential and fitness for purpose of the application of PBPK modelling in these fields. Attendees considered applicability in the context of future food safety assessment for refining exposure assessments of chemicals with narrow margins of exposure and/or to fill data gaps from more traditional approaches (i.e., data from animal testing). The overall conclusions from the workshop were as follows: PBPK modelling tools were applicable in the areas of use covered, and that expertise was available (though it is in small numbers). PBPK modelling offers opportunities to address questions for compounds that are otherwise not possible (e.g., considerations of human variability in kinetics) and allows identification of “at risk” subpopulations. The use of PBPK modelling tends to be applied on a case-by-case basis and there appears to be a barrier to widespread acceptance amongst regulatory bodies due to the lack of available in-house expertise (apart from some medical and environmental agencies such as the European Medicines Agency, United States Food and Drug Administration, and the US Environmental Protection Agency, respectively). Familiarisation and further training opportunities on the application of PBPK modelling using real world case studies would help in generating interest and developing more experts in the field, as well as furthering acceptance. In a regulatory context, establishing fitness for purpose for the use of PBPK models requires transparent discussion between regulatory agencies, government bodies, academics, and industry and the development of a harmonised guidance such as by the Organisation for Economic Co-operation and Development (OECD) would provide a starting point. Finally, PBPK modelling is part of the wider “new approach methodologies” for risk assessment, and there should be particular emphasis in modelling both toxicodynamics and toxicokinetics.

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