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Letteratura scientifica selezionata sul tema "THz Tag"

Autore: Grafiati

Pubblicato: 12 ottobre 2024

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Articoli di riviste sul tema "THz Tag"

Lutsenko, A. V., М. Yu Yushin, G. N. Genatullina, A. G. Tyrkov, A. K. Ayupova, L. V. Saroyants, A. A. Starikova e M. A. Samotrueva. "Microbiological screening of compounds with potential anti-lep activity among new synthesis compounds of the pyrimidine series". Siberian Journal of Clinical and Experimental Medicine 38, n. 2 (10 aprile 2023): 218–26. http://dx.doi.org/10.29001//2073-8552-2023-38-2-218-226.

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Aim: To study the effect of new synthesized pyrimidine derivatives on the growth of Mycobacterium lufu (M. lufu) and Mycobacterium tuberculosis (M. tuberculosis) when cultivated on Shkolnikova’s medium.Materials and methods. The objects of research were new synthesized derivatives of 6 samples of derivatives of pyrimidine - 5-(arylmethylidene)-2,4,6-pyrimidine-2,4,6(1H,3H,5H)-trions under laboratory codes TAG1, TAG2, TAG3, TAG4, TAG5, TAG6 and 7 samples of 5-(getarylmethylidene)-2,4,6-pyrimidine-2,4,6(1H, 3H, 5H)-trions under the laboratory codes TAG7, TAG8, TAG9, TAG10, TAG11, TAG12, TAG13. M. lufu and M. tuberculosisH37Rv strains were used as test cultures. The antimycobacterial activity of the studied compounds was studied by the method of serial dilutions.Research results. All studied compounds were found to exhibit antimycobacterial activity. The greatest inhibitory effect against M. lufu was noted for TAG1, TAG4, TAG7, TAG12, and TAG13, which was comparable to that of the reference drug dapsone. By the nature of the inhibitory effect on the growth of M. tuberculosis, the compounds under the laboratory codes TAG 1, TAG 4, TAG 7 and TAG13 were comparable to isoniazid, and the effect of the TAG3 compound was even slightly superior to the reference drug.Conclusion. Among the studied new synthesized pyrimidine derivatives, compounds under the laboratory codes TAG1, TAG4, TAG 7 and TAG13 have the most pronounced antimicrobial activity both against M. lufu and M. tuberculosis, which allows us to consider them as the most promising substances for further research on the search for antimycobacterial, including antileprosy drugs.

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Bonnefoy, Florent, Maxime Bernier, Etienne Perret, Nicolas Barbot, Romain Siragusa, David Hely, Eiji Kato e Frederic Garet. "Video-Rate Identification of High-Capacity Low-Cost Tags in the Terahertz Domain". Sensors 21, n. 11 (26 maggio 2021): 3692. http://dx.doi.org/10.3390/s21113692.

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In this article, we report on video-rate identification of very low-cost tags in the terahertz (THz) domain. Contrary to barcodes, Radio Frequency Identification (RFID) tags, or even chipless RFID tags, operate in the Ultra-Wide Band (UWB). These THz labels are not based on a planar surface pattern but are instead embedded, thus hidden, in the volume of the product to identify. The tag is entirely made of dielectric materials and is based on a 1D photonic bandgap structure, made of a quasi-periodic stack of two different polyethylene-based materials presenting different refractive indices. The thickness of each layer is of the order of the THz wavelength, leading to an overall tag thickness in the millimetre range. More particularly, we show in this article that the binary information coded within these tags can be rapidly and reliably identified using a commercial terahertz Time Domain Spectroscopy (THz-TDS) system as a reader. More precisely, a bit error rate smaller than 1% is experimentally reached for a reading duration as short as a few tens of milliseconds on an 8 bits (~40 bits/cm2) THID tag. The performance limits of such a tag structure are explored in terms of both dielectric material properties (losses) and angular acceptance. Finally, realistic coding capacities of about 60 bits (~300 bits/cm2) can be envisaged with such tags.

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Lu, Yongtao, Yiqian He, Weiteng Li, Zhuoyue Yang, Ruifei Peng e Li Yu. "Comparison of Biomechanical Performance of Five Different Treatment Approaches for Fixing Posterior Pelvic Ring Injury". Journal of Healthcare Engineering 2020 (22 gennaio 2020): 1–11. http://dx.doi.org/10.1155/2020/5379593.

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Background. A large number of pelvic injuries are seriously unstable, with mortality rates reaching 19%. Approximately 60% of pelvic injuries are related to the posterior pelvic ring. However, the selection of a fixation method for a posterior pelvic ring injury remains a challenging problem for orthopedic surgeons. The aim of the present study is to investigate the biomechanical performance of five different fixation approaches for posterior pelvic ring injury and thus provide guidance on the choice of treatment approach in a clinical setting. Methods. A finite element (FE) model, including the L3-L5 lumbar vertebrae, sacrum, and full pelvis, was created from CT images of a healthy adult. Tile B and Tile C types of pelvic fractures were created in the model. Five different fixation methods for fixing the posterior ring injury (PRI) were simulated: TA1 (conservative treatment), TA2 (S1 screw fixation), TA3 (S1 + S2 screw fixation), TA4 (plate fixation), and TA5 (modified triangular osteosynthesis). Based on the fixation status (fixed or nonfixed) of the anterior ring and the fixation method for PRI, 20 different FE models were created. An upright standing loading scenario was simulated, and the resultant displacements at the sacroiliac joint were compared between different models. Results. When TA5 was applied, the resultant displacements at the sacroiliac joint were the smallest (1.5 mm, 1.6 mm, 1.6 mm, and 1.7 mm) for all the injury cases. The displacements induced by TA3 and TA2 were similar to those induced by TA5. TA4 led to larger displacements at the sacroiliac joint (2.3 mm, 2.4 mm, 4.8 mm, and 4.9 mm), and TA1 was the worst case (3.1 mm, 3.2 mm, 6.3 mm, and 6.5 mm). Conclusions. The best internal fixation method for PRI is the triangular osteosynthesis approach (TA5), followed by S1 + S2 screw fixation (TA3), S1 screw fixation (TA2), and plate fixation (TA4).

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Samotrueva, M. A., N. M. Gabitova, G. N. Genatullina, A. A. Starikova, O. A. Bashkina, A. G. Tyrkov, A. A. Ozerov e I. N. Tyurenkov. "Assessment of Antimycobacterial Activity of Newly Synthesized Pyrimidine Derivatives Against Mycobacterium tuberculosis". Antibiotics and Chemotherapy 67, n. 3-4 (4 agosto 2022): 4–15. http://dx.doi.org/10.37489/0235-2990-2022-67-3-4-4-15.

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Background. The current trend of growing antibiotic resistance among pathogenic microorganisms remains one of the urgent and significant problems of mankind. The constant spread of resistant strains of microorganisms requires the development of innovative methods and the search for medicinal compounds with a highly effective mechanism of action. One of these multi-resistant pathogens that are difficult to eradicate is the causative agent of tuberculosis — Mycobacterium tuberculosis. The aim is to study the effect of newly synthesized pyrimidine derivatives on the growth of Mycobacterium tuberculosis culture, as well as on the structural changes in cells.Material and methods. In order to assess the effect of a number of pyrimidine derivatives on the growth of Mycobacterium tuberculosis culture, 6 samples of 5-(arylmethylene) hexahydropyrimidine-2,4,6-triones (TAG1 — TAG6), 7 samples of 5-hetarylmethylidene-2,4,6-triones (TAG7 — TAG13), and 2 new samples of 3-(2-Benzyloxy-2-oxoethyl)quinazoline-4(3H)-one and 3-[2-(1-Naphthyl)-2-oxoethyl]quinazoline-4(3H)-one were screened under the laboratory ciphers VMA-13-03 and VMA-13-04 in the course of the study. M.tuberculosis H37RV strain was used as a test culture; it was provided by the bacteriological laboratory of the Regional Infectious Clinical Hospital named after A. M. Nichoga. A 4-week culture of M.tuberculosis, synchronized by cold (+4°C) for 72 hours, was used to prepare a suspension of mycobacteria. The number of mycobacteria in the suspension was determined using the McFarland 0.5 turbidity standard. 0.2 ml of M.tuberculosis working suspension was added to each tube of a series of successive dilutions of the studied substances, including the control. The study was carried out in 4 series of replicates. The minimum bactericidal concentration of the compounds, at which no colony growth was detected, as well as the minimum inhibitory concentration, at which mycobacterium growth was delayed by 50% compared to the control, were determined. Smears were prepared from the sediment for staining using theZiehl-Neelsen method to determine the presence of acid-resistant and non-acid-resistant forms of mycobacteria, as well as to study the effect of pyrimidines and a comparison drug on structural changes in M.tuberculosis cells.Results. In the course of the study, the TAG4, TAG6, and TAG8 compounds were found to have the closest antibacterial activity to the comparison drug isoniazid, according to the indicator of mycobacteria growth retardation. The greatest bactericidal activity against M.tuberculosis was observed in TAG4, TAG7, and VMA–13–04. The remaining compounds have shown minimal inhibitory effect on the growth of M.tuberculosis. Microscopic studies have shown that under the influence of TAG3, TAG4, TAG7, TAG12, VMA-13-03, and VMA-13-04, the main structural components of M.tuberculosis cells undergo fragmentation and morphological changes compared to mycobacterium cells without exposure.Conclusion. As a result, it was found that all the studied compounds possess antimycobacterial activity. Compounds under the laboratory ciphers TAG1, TAG4, TAG7, and TAG13 were comparable to isoniazid by the nature of the inhibitory effect on the growth of M.tuberculosis, and the TAG3 compound even slightly exceeded the effect of the comparison drug. Compounds under the laboratory codes VMA-13-03, and VMA-13-04 had the least pronounced anti-tuberculosis effect. Compounds under the laboratory codes TAG5, TAG6, TAG11, and TAG12 showed the least antimycobacterial activity.

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GANGAR, Akanksha, Sumana RAYCHAUDHURI e Ram RAJASEKHARAN. "Alteration in the cytosolic triacylglycerol biosynthetic machinery leads to decreased cell growth and triacylglycerol synthesis in oleaginous yeast". Biochemical Journal 365, n. 3 (1 agosto 2002): 577–89. http://dx.doi.org/10.1042/bj20011654.

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Altered nutrient content (levels of glucose) caused a drastic reduction in cell growth and triacylglycerol (TAG) production in the wild-type (WT) Rhodotorula glutinis. This was due to the decreased level of synthesis of TAG biosynthetic enzymes, reflected by a reduction in enzyme activity. A similar observation was made in the case of non-lethal mutants of TAG-deficient oleaginous yeast, namely TAG1 and TAG2, which were generated by ethyl methane sulphonate mutagenesis. Metabolic labelling of TAG-deficient cells with [14C]acetate, [32P]orthophosphate and [14C]mevalonate showed a negligible TAG formation with minimal alterations in phospholipid and sterol compositions. Assays on the activities of cytosolic TAG biosynthetic enzymes revealed that lysophosphatidic acid and diacylglycerol acyltransferases (ATs) were defective in TAG1 and TAG2 respectively. The activity of membrane-bound isoforms of TAG biosynthetic enzymes remains unaltered in the mutants. Analysis of cytosolic TAG biosynthetic enzymes by immunoblotting and immunoprecipitation indicated that the defective ATs were a part of the TAG biosynthetic multienzyme complex. Quantitatively, the cytosolic lysophosphatidic acid-AT was comparable between TAG1 and the WT. However, diacylglycerol-AT was relatively less in TAG2 than the WT. These results demonstrated that either by decreasing the nutrient content or mutating the enzymes of the soluble TAG biosynthetic pathway, TAG production was decreased with concomitant reduction in the cell growth.

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Konieczny, A., D. F. Voytas, M. P. Cummings e F. M. Ausubel. "A superfamily of Arabidopsis thaliana retrotransposons." Genetics 127, n. 4 (1 aprile 1991): 801–9. http://dx.doi.org/10.1093/genetics/127.4.801.

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Abstract We describe a superfamily of Arabidopsis thaliana retrotransposable elements that consists of at least ten related families designated Ta1-Ta10. The Ta1 family has been described previously. Two genomic clones representing the Ta2 and Ta3 elements were isolated from an A. thaliana (race Landsberg erecta) lambda library using sequences derived from the reverse transcriptase region of Ta1 as hybridization probes. Nucleotide sequence analysis showed that the Ta1, Ta2 and Ta3 families share greater than 75% amino acid identity in pairwise comparisons of their reverse transcriptase and RNase H genes. In addition to Ta1, Ta2 and Ta3, we identified seven other related retrotransposon families in Landsberg erecta, Ta4-Ta10, using degenerate primers and the polymerase chain reaction to amplify a highly conserved region of retrotransposon-encoded reverse transcriptase. One to two copies of elements Ta2-Ta10 are present in the genomes of the A. thaliana races Landsberg erecta and Columbia indicating that the superfamily comprises at least 0.1% of the A. thaliana genome. The nucleotide sequences of the reverse transcriptase regions of the ten element families place them in the category of copia-like retrotransposons and phylogenetic analysis of the amino acid sequences suggests that horizontal transfer may have played a role in their evolution.

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Mesele, Etsay, Ashenafi Teklay Yaekob, Melaku Mekonen Kasegn, Birhanu Kahsay Meresa, Micheale Yifter Weldemichael, Yisehak Tsegaye Redda, Genet Gebreyohanns, Roza Hadush e Tesfakiros Semere. "Characterization of Rhizobia Isolated from Tigray Soil and Assessment of Their Effect on Germination and Seedling Vigor of Wheat and Field Pea". International Journal of Agronomy 2024 (30 aprile 2024): 1–17. http://dx.doi.org/10.1155/2024/4787016.

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Nowadays, the inoculation of plant growth-promoting rhizobia in leguminous and nonleguminous crops is given great emphasis as it improves germination and seedling vigor, resulting in increased yields. In this study, 32 rhizobia isolates were obtained from five different sampling sites in Tigray, Ethiopia. Based on morphological, biochemical, and confirmatory tests, including sugar fermentation, the isolates were identified as belonging to the rhizobia genera. In vitro assessment of plant growth-promoting properties revealed that all isolates produced indole-acetic-acid, ammonia, and solubilized phosphate, except TA8, which did not solubilize phosphate. Only 3 isolates (TA1, TA2, and TA8) produced hydrogen cyanide, so they can be used as biocontrol agents. Nineteen isolates showed a growth reduction activity against Fusarium oxysporum, with a percent inhibition range of 34.2%–65.8%. All isolates tolerated a pH range of 4.0–9.0. The isolates showed growth variations in various temperatures and salt concentrations. A few isolates were tolerant up to 45°C temperature and 6% (w/v) CaCl2 and NaCl concentrations. Inoculation of the isolates to wheat seeds increased seed germination, seedling shoot/root length, and seedling vigor index compared to the positive and negative controls. Isolates KO3, KO4, ME3, and TA5 increased seed germination by 4%. KO1 (11.60 cm) and TA7 (11.70 cm) showed a significantly enhanced shoot length, and ME3 showed a maximum root length (13.90 cm). SH1, KO2, and the positive control showed a significant (P≤0.05) increase in pea seed germination (by 20%) compared to the negative control. The positive control had the longest field pea shoot (5.70 cm), and isolate TA9 had the longest field pea root (5.32 cm) compared to the negative control. Generally, the wheat and field pea seedlings responded differently to the inoculation of different isolates. This study shows that Tigray soils harbor a variety of rhizobia species, which can be used as plant growth-promoting and biocontrol agents.

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Aggarwal, Navidha, e Sandeep Jain. "A Synthetic Approach, Characterization and Biological Evaluation of Novel 5-(Arylidene)-2-(5-methyl-1,3,4-thiadiazol-2-ylimino)thiazolidin-4-one Derivatives". Asian Journal of Chemistry 33, n. 7 (2021): 1530–36. http://dx.doi.org/10.14233/ajchem.2021.23203.

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The extensive biological potential of thiazolidin-4-one and 1,3,4-thiadiazole moieties, the novel string of 5-(arylidene)-2-(5-methyl-1,3,4-thiadiazol-2-ylimino)thiazolidin-4-one has been synthesized and characterized. The synthesized derivatives were screened for antimicrobial potential using serial tube dilution method. The results showed that all the synthesized compounds have significant biological activity against the microorganisms being tested. The antimicrobial activity of the compounds TA2, TA3, TA4, TA9, TA10 and TA20 against the tested microbial strains was promising. Compound TA4 (2-((5-methyl-1,3,4-thiadiazol-2-yl)imino)-5-(4-nitrobenzylidene)- thiazolidin-4-one) and TA2 (5-(4-chlorobenzylidene)-2-((5-methyl-1,3,4-thiadiazol-2-yl)imino)thiazolidin-4-one) showed promising antimicrobial activity against microbial strains. Compound TA9 (5-(4-(benzyloxy)benzylidene)-2-((5-methyl-1,3,4-thiadiazol-2-yl)imino)thiazolidin-4-one) was found to be the most effective towards B. subtilis. Compound TA10 (5-(3,4-dimethoxybenzylidene)-2-((5- methyl-1,3,4-thiadiazol-2-yl)imino)thiazolidin-4-one) was discovered to be the most potent against the Gram-negative bacteria. Compounds TA3 (5-(4-bromobenzylidene)-2-((5-methyl-1,3,4-thiadiazol- 2-yl)imino)thiazolidin-4-one) and TA20 (5-(2-bromobenzylidene)-2-((5-methyl-1,3,4-thiadiazol-2- yl)imino)thiazolidin-4-one) were the most effective compounds against the fungal strain.

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Lee, Eui Su, e Han-Cheol Ryu. "Resonance Control of VO2 Thin-Film-Based THz Double-Split Rectangular Metamaterial According to Aspect Ratio". Photonics 9, n. 12 (10 dicembre 2022): 966. http://dx.doi.org/10.3390/photonics9120966.

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The resonance characteristics of a double-split rectangular metamaterial based on a vanadium dioxide (VO2) thin film were controlled according to the aspect ratio of the rectangle in the terahertz (THz) frequency region. The VO2 thin film line was etched between the double-split rectangular gaps so that the resonance band could be switched by varying the characteristics of the VO2 thin film. When the VO2 thin film is in an insulator state, the rectangle is separated and resonates individually; thus, it resonates in the high-frequency band. When the VO2 thin film changes from an insulator to a conductor with a change in the temperature, the divided rectangles are electrically connected to operate as a single resonator, and the resonant frequency shifts to a low-frequency band. Varying the aspect ratio of the rectangle changes the resonant frequency and resonance strength of the double-split rectangular metamaterial. If the aspect ratio is increased by fixing the width of the unit cell of the metamaterial and adjusting the height, the resonant frequency is lowered in all situations, regardless of the state of the VO2 thin film and the polarization of the incident THz wave. The resonant frequency and resonance strength of the double-split rectangular metamaterial proposed in this paper could be controlled stably through a change in only the aspect ratio, not the overall unit cell size. The proposed double-split rectangular metamaterial based on an etched VO2 thin film is expected to be essential for THz tag, sensing, and wireless communication applications.

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Più fonti

Tesi sul tema "THz Tag"

Nastasiu, Dragos-Florin. "Développement de solutions pour l’identification (THID) et l’authentification par des approches non intrusives dans le domaine THz". Electronic Thesis or Diss., Chambéry, 2024. http://www.theses.fr/2024CHAMA007.

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L'imagerie THz est un domaine émergent depuis les avancées technologiques en termes d'émission de rayonnement THz et d'équipement de détection. L'objectif principal de la thèse est de contribuer et d'améliorer les systèmes d'imagerie THz, de la reconstruction et de l'analyse d'images aux tâches de classification d'images. Dans la première partie de la thèse, nous nous attaquons au défi de l'estimation de l'amplitude dans des conditions de bruit idéal et multiplicatif. Le bruit multiplicatif déforme la phase et introduit des artefacts complexes, tels que la perte d'information sur les contours et la dégradation du contraste, qui ne peuvent être éliminés à l'aide des techniques de reconstruction d'image les plus récentes. À cet égard, nous présentons cinq nouvelles méthodes de reconstruction qui exploitent la représentation du diagramme de phase des signaux. Deux de ces méthodes sont basées sur le filtrage du diagramme de phase pour estimer l'amplitude dans les deux conditions. Deux autres méthodes utilisent le concept de déformation temporelle dynamique (DTW) pour augmenter la capacité à modéliser le type de bruit multiplicatif. Enfin, nous exploitons la dynamique de la trajectoire de phase décrite par les courbures pour reconstruire l'image. Parmi le grand nombre de méthodes, nous évaluons tout au long de la thèse que la méthode basée sur les courbures reconstruit efficacement l'image dans des contextes idéaux et bruités. Après une reconstruction efficace de l'image, la deuxième partie de la thèse, nous étudions les méthodes d'analyse et de classification d'images en tenant compte des instabilités des systèmes d'imagerie du monde réel, telles que les translations et les rotations. Dans ce sens, nous proposons d'utiliser des décompositions de paquets d'ondelettes invariantes par rapport à la translation et à la rotation, qui fournissent une représentation unique et optimale d'une image, indépendamment de la translation ou de la rotation de l'image. Sur la base des représentations d'images invariantes, de nouvelles techniques d'extraction de caractéristiques sont introduites, telles que les cadres verticaux, horizontaux, N-directionnels et N-zonaux. En outre, deux structures de caractéristiques sont introduites, qui prennent en compte le partitionnement en fréquence de la décomposition en ondelettes et sont adaptées pour fonctionner avec des réseaux neuronaux graphiques (GNN) et des classificateurs ML classiques tels que les k-voisins les plus proches (k-NN), les machines à vecteurs de support (SVM), etc. Dans l'ensemble, les approches que nous proposons augmentent la précision de tous les classificateurs
THz imaging is an emerging field since the technological advances in terms of THz radiation emission and detection equipment. The main objective of the thesis is to contribute and to improve THz imaging systems, from image reconstruction and analysis to image classification tasks. In the first part of the thesis, we tackle the amplitude estimation challenge under ideal and multiplicative noise conditions. The multiplicative noise deforms the phase and introduces complex artefacts, such as contour information loss and contrast degradation, that cannot be eliminated using state-of-the-art image reconstruction techniques. In this regard, we introduce five novel reconstruction methods which exploit the phase diagram representation of signals. Two of the methods are based on phase-diagram match filtering to estimate the amplitude in both conditions. Another two methods use the concept of dynamic time warping (DTW) to increase the capability to model the multiplicative type of noise. Lastly, we exploit the dynamic of the phase trajectory described by the curvatures to reconstruct the image. From the large pool of methods, we evaluate throughout the thesis that the curvature-based method efficiently reconstructs the image in both ideal and noisy contexts. After an efficient image reconstruction, the second part of the thesis, we study image analysis and classification methods considering the instabilities of real-world imaging systems, such as translations and rotations. In this sense, we propose to use translation and rotation invariant wavelet packet decompositions, that provide a unique and optimal representation of an image, regardless if the image is translated or rotated. Based on the invariant image representations, novel feature extraction techniques are introduced such as vertical, horizontal, N-directional and N-zonal frameworks. Additionally, two feature structures are introduced and that consider the frequency partitioning of the wavelet decomposition and are adapted to work with Graph Neural Networks (GNNs) and classic ML classifiers such as k-nearest neighbors (k-NN), support vector machine (SVM), etc. Overall, our proposed approaches increase the accuracy of all classifiers

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Takahashi, Mariko. "A Comparative Study of Tag Questions and Invariant Tags in Asian Englishes: A Corpus-Based Analysis". Kyoto University, 2016. http://hdl.handle.net/2433/215623.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(人間・環境学)
甲第19797号
人博第768号
新制||人||185(附属図書館)
27||人博||768(吉田南総合図書館)
32833
京都大学大学院人間・環境学研究科共生人間学専攻
(主査)教授齋藤治之, 教授壇辻正剛, 准教授谷口一美
学位規則第4条第1項該当

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Lam, Lai-kwan. "Messianic elements in mid-Tang thought : the case of Liu Zongyuan (773-819) = Tang zhong ye shu shi si xiang tan tao : Liu Zongyuan yan jiu /". Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25797268.

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Nguyen, Thi Hong Hanh [Verfasser]. "Recommending Tags for Images: Deep Learning Approaches for Personalized Tag Recommendation / Thi Hong Hanh Nguyen". Hildesheim : Universität Hildesheim, 2018. http://d-nb.info/1171987838/34.

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Li, Laam-hung Candy, e 李嵐虹. "Into nature: sculptures in the park, Tai Tam Valley". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31985324.

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Li, Laam-hung Candy. "Into nature : sculptures in the park, Tai Tam Valley /". Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25947977.

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Siebertz, Kristina D. "Application of chemoselective tools for the protein semi-synthesis of tau and the development of a novel photo-cleavable tag". Doctoral thesis, Humboldt-Universität zu Berlin, 2019. http://dx.doi.org/10.18452/19827.

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Posttranslationale Modifikationen sind chemische Veränderungen, die ein Protein nach der Translation durchläuft. Sie sind wichtig für die Regulierung der Funktion, Struktur und Interaktion von Proteinen. Die Einführung von Modifikationen in Biomoleküle ist zudem ein Hilfsmittel in der Chemischen Biologie, um neue Informationen über ihr Verhalten zu erlangen und ihre Aktivität zu verändern. Die Fehlregulierung von posttranslationalen Modifikationen steht häufig in direkter Verbindung zum Ausbruch von Krankheiten. Ein Beispiel ist das Tau Protein welches eine Schlüsselrolle in der Alzheimer Erkrankung hat. Im Laufe der Krankheit wird Tau hyperphosphoryliert, was zu einem Funktionsverlust des Proteins und zur Bildung von nicht-löslichen Aggregaten führt. Die Mechanismen hinter dieser Fehlregulierung zu eluieren gehört zu einer der großen Herausforderungen der Alzheimerforschung. Diese Doktorarbeit hat sich mit der Entwicklung einer neuen semi-synthetischen Ligationsstrategie beschäftigt, die es ermöglichen soll die Rolle einzelner Phosphorylierungen in der Prolin-reichen Region des Tau Proteins zu untersuchen. Hierfür wurden geeignete Ligationsstellen identifiziert, Ligationsmöglichkeiten geprüft und die Synthese der einzelnen Fragmente optimiert. Desweiteren wurde in dieser Dissertation eine neuartige Anwendung der Staudinger-Phosphonit Ligation entwickelt, die es ermöglicht mit Boran-geschützten P(III) Verbindungen azidhaltige Moleküle zu lichtspaltbaren Phosphonamidaten zu modifizieren. Die P(III) Bausteine beinhalteten dabei nicht nur zwei lichtspaltbare 2-Nitrobenzyl-Substituenten, sondern erlauben zudem über eine Alkingruppe eine vielfältige Funktionalisierung. Die Bestrahlung durch UV Licht induziert die Spaltung der P-N Bindung der Phosphonamidate und setzte das Ursprungsmolekül mit einer zusätzlichen Aminfunktion frei. Dahingehend wurden erste Schritte unternommen, damit die Lichtspaltung keine Modifikation mehr am Ursprungsmolekül hinterlässt.
Post-translational modifications are essential in the regulation of the function, folding and interaction of proteins. Similarly, the modification of biomolecules is a main tool in chemical biology to gain new insights into their molecular mechanisms and to alter and fine-tune their activity. The dysregulation of post-translational modifications is often associated with disease. An example are the abnormally hyperphosphorylated tau proteins that are the main component of neurofibrillary tangles, one of the pathological hallmarks of the neurodegenerative disease Alzheimer‘s disease. The origin of these hyperphosphorylations, which render a soluble and mostly unstructured protein into insoluble aggregates, is a key question in Alzheimer research. First steps towards a tau semi-synthesis that allow for the site-specific introduction of phosphorylations in the proline-rich domain were taken by identifying suitable ligation sites, finding the ideal sequential ligation strategy, providing reliable protein expression protocols and optimizing the synthesis of the synthetic peptides equipped with phosphorylated residues. Furthermore, this thesis explored the use of the Staudinger-phosphonite reaction in the synthesis of photo-cleavable phosphonamidates to modify biomolecules in a reversible manner. This conjugation method allowed for the chemoselective modification of an azido-containing target molecule with a borane-protected P(III) reagent that was equipped with photo-cleavable 2-nitrobenzyl substituents and one alkyne for functionalization. UV irradiation induced the phosphonamidate P-N bond cleavage and resulted in the release of the target molecule with an additional amine functionality. In this regard, first steps were undertaken to develop a traceless variant of this cleavage. The application of the photo-cleavable phosphonamidates was demonstrated in streptavidin-mediated immobilization assays, which is just one example for the use of this valuable methodology.

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Klemetti, Miika A. "A search for the decays B⁺ [arrow] l⁺[nu] and B⁰ [arrow] l⁺ [tau]⁻ (l = e, [mu]) using hadronic tag reconstruction /". Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112525.

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We present searches for the leptonic decays B + → ℓ+nu and the lepton flavor violating decays B0 → ℓ+/-tau ∓, where ℓ = e, mu, with data collected by the BABAR experiment at SLAC. These searches utilize a technique in which we fully reconstruct the accompanying B¯ in Upsilon(4S) → BB¯ events, and look for a monoenergetic lepton in the signal B frame. The signal yield in the data is extracted from a fit to the signal lepton candidate momentum distribution in the signal B rest frame. Using a data sample of approximately 378 million BB¯ pairs (342 fb-1), we find no evidence of signal in any of the decay modes. Branching fraction upper limits of B (B+ → e +nu) < 5.2 x 10-6, B (B+ → mu+nu) < 5.6 x 10-6, B (B0 → e +tau-) < 2.8 x 10-5 and B (B0 → mu+tau -) < 2.2 x 10-5, are obtained at the 90% confidence level.

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Lehmann, Roland [Verfasser]. "Development of a novel S3S-TAP-tag for a proteomic interactome analysis of the human T cell adaptor protein ADAP / Roland Lehmann". München : Verlag Dr. Hut, 2011. http://d-nb.info/1017353654/34.

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Al, Khambashi Majid S. "Analysis and solutions for RFID tag and RFID reader deployment in wireless communications applications. Simulation and measurement of linear and circular polarised RFID tag and reader antennas and analysing the tags radiation efficiency when operated close to the human body". Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/6340.

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The aim of this study is to analysis, investigate and find out the solutions for the problems associated with the implementations of antennas RFID Reader and Tag for various applications. In particular, the efficiency of the RFID reader antenna and the detection range of the RFID tag antenna, subject to a small and compact antenna¿s design configuration have been studied. The present work has been addressed directly to reduce the cost, size and increase the detection range and communication reliability of the RFID framework antennas. Furthermore, the modelling concept of RFID passive tags mounted on various materials including the novel design of RFID reader antenna using Genetic Algorithm (GA) are considered and discussed to maintain reliable and efficient antenna radiation performances. The main benefit of applying GA is to provide fast, accurate and reliable solutions of antenna¿s structure. Therefore, the GA has been successfully employed to design examples: meander-line, two linear cross elements and compact Helical- Spiral antennas. In addition, a hybrid method to model the human body interaction with RFID tag antenna operating at 900MHz has been studied. The near field distribution and the radiation pattern together with the statistical distribution of the radiation efficiency and the absorbed power in terms of cumulative distribution functions for different orientation and location of RFID¿s tag antenna on the human body have been demonstrated. Several tag antennas wi th symmetrical and unsymmetrical structure configurations operating in the European UHF band 850-950 MHz have been fabricated and tested. . The measured and simulated results have been found to be in a good agreement with reasonable impedance matching to the typical input impedance of an RFID integrated circuit chip and nominal power gain and radiation patterns.

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Più fonti

Libri sul tema "THz Tag"

Braddock, Paul F. Dog tags: A history of the American military identification tag, 1861-2002. [United States?]: P.F. Braddock, 2003.

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1968-, Kury Astrid, a cura di. Kein Tag ohne Erleichterung: Vorletzte Dinge. St. Pölten: Residenz, 2012.

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Nordic TAG Conference (2nd 1987 Umeå, Sweden). Nordic TAG: Report from the 2nd Nordic TAG Conference, Umeå, 1987. Umeå, Sweden: University of Umeå, Dept. of Archaeology, 1991.

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Simmons, Jane. Tai-hsi ho pao pei tan =: Daisy and the egg. London, England: Milet, 2000.

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Njoya, Timothy Murere. The divine tag on democracy. Yaoundé: CLE, 2003.

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Tang, Bingxuan. Tang Bingxuan tai gan ban ri ji(1944-1945): The diary of Tang Ping-hsuan, 1944-1945. Xianggang: Kai yuan shu ju, 2020.

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Library, Dolly Parton's Imagination, a cura di. Max and the tag-along moon. New York: Puffin Books, an imprint of Penguin Group (USA), 2015.

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Ragnhild, Berge, Jasinski Marek E e Sognnes Kalle, a cura di. N-TAG TEN: Proceedings of the 10th Nordic TAG conference at Stiklestad, Norway 2009. Oxford: Archaeopress, 2012.

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Hsüeh, Tʻao. Brocade River poems: Selected works of the Tang dynasty courtesan Xue Tao. Princeton, N.J: Princeton University Press, 1987.

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Jeanne, Larsen, a cura di. Brocade River poems: Selected works of the Tang dynasty courtesan Xue Tao. Princeton, N.J: Princeton University Press, 1987.

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Capitoli di libri sul tema "THz Tag"

Reimann, Oliver, Caroline Smet-Nocca e Christian P. R. Hackenberger. "Tag-Free Semi-Synthesis of the Tau Protein". In Methods in Molecular Biology, 215–35. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4939-6598-4_12.

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Rennie, Frank, e Keith Smyth. "Meta tag". In Digital Learning: The Key Concepts, 98. 2^a ed. London: Routledge, 2019. http://dx.doi.org/10.4324/9780429425240-124.

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Hawkins, P. R. "Tag clauses". In Social Class, the Nominal Group and Verbal Strategies, 176–81. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003313632-13.

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Fraley, Andrew W. "The DNA Tag". In A Handbook for DNA-Encoded Chemistry, 153–69. Hoboken, NJ: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118832738.ch7.

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Milošević, Ana. "The victim tag". In Victims and Memory After Terrorism, 39–56. London: Routledge, 2024. http://dx.doi.org/10.4324/9781003472735-3.

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Kpodonu, Jacques. "The Gore TAG Endoprosthesis". In Manual of Thoracic Endoaortic Surgery, 229–43. London: Springer London, 2010. http://dx.doi.org/10.1007/978-1-84996-296-4_22.

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Böckler, Dittmar. "The Gore TAG Devices". In Thoraco-Abdominal Aorta, 729–35. Milano: Springer Milan, 2011. http://dx.doi.org/10.1007/978-88-470-1857-0_60.

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Houston, Ella. "Crossing the (Tag)line". In Advertising Disability, 74–92. London: Routledge, 2024. http://dx.doi.org/10.4324/9781003433415-5.

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Lee, Duck-Young, e Naomi Ogi. "Chapter 2. The function of names". In It's different with you, 35–60. Amsterdam: John Benjamins Publishing Company, 2023. http://dx.doi.org/10.1075/tar.5.02lee.

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The current study investigates the use of a person’s name in Japanese and Korean. A name is the first appellation given to an individual, and functions not only to identify and address them, but also to establish and maintain everyday interactions. In many languages, a name can typically be either a given name or family name only, or both in full, and each form of a name (i.e., given name, family name or full name) may function differently from language to language. The current study aims to explore the differences between Japanese and Korean in terms of the distribution of different forms of names, and the social functions and pragmatic effects of these forms. Based on the analysis of three Japanese TV drama series and their Korean remake versions, the study shows that, in terms of frequency, Japanese can be characterised as a “family name” language whereas Korean can be characterised as a “full name” language. The study also demonstrates that there are differences in the use of family names and full names between the two languages.

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Baumgarten, Nicole. "Chapter 9. And the postcode darlin’ . Vocative variation in service encounters on the telephone in Northern England". In It's different with you, 220–44. Amsterdam: John Benjamins Publishing Company, 2023. http://dx.doi.org/10.1075/tar.5.09bau.

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The chapter presents the results of an investigation of vocative use in telephone service encounters in the British housing market. The investigation is based on 300+ “mystery shopping” telephone calls placed with real estate agents servicing four socio-economically different areas of a city in northern England. The results show how the contrastiveness inherent in the address system is put to use in context-specific decisions about relationship and transaction management in telephone service encounters: Vocative use is nonreciprocal and restricted to estate agents. The frequency of vocative use as well as choice of vocative type by estate agents (first name, last name, honorific, endearment) is socio-economically stratified and sensitive to socio-ethnic group membership projected through callers’ accent and name. Variation in vocative type within individual calls allows the agent to explicate an asymmetrical role relationship for the purpose of transaction control.

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Atti di convegni sul tema "THz Tag"

Mitsuhashi, Ryoya, Toshinari Horiuchi, Kosuke Murate e Kodo Kawase. "Terahertz Tag Identifiable through Shielding Material". In 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 2019. http://dx.doi.org/10.1109/irmmw-thz.2019.8873940.

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Nagatsuma, Tadao, Yusuke Kujime, Masayuki Fujita, Tomoki Sagisaka e Li Yi. "Terahertz Information Tag System with Over-100-bit/s Reading Speed". In 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 2019. http://dx.doi.org/10.1109/irmmw-thz.2019.8873917.

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Abbas, Ali Alhaj, Mohammed El-Absi, Ashraf Abuelhaijay, Klaus Solbach e Thomas Kaiser. "THz Passive RFID Tag Based on Dielectric Resonator Linear Array". In 2019 Second International Workshop on Mobile Terahertz Systems (IWMTS). IEEE, 2019. http://dx.doi.org/10.1109/iwmts.2019.8823734.

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Ziai, M. Ali, e John C. Batchelor. "Supply chain integrity tilt sensing RFID tag". In 2017 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP). IEEE, 2017. http://dx.doi.org/10.1109/imws-amp.2017.8247357.

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Hamdi, M., F. Garet, L. Duvillaret, Ph Martinez e G. Eymin-Petot-Tourtollet. "New approach for chipless and low cost identification tag in the THz frequency domain". In 2012 IEEE International Conference on RFID-Technologies and Applications (RFID-TA). IEEE, 2012. http://dx.doi.org/10.1109/rfid-ta.2012.6404523.

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Jimenez-Saez, Alejandro, Martin Schusler, Damian Pandel, Niels Benson e Rolf Jakoby. "3D Printed 90 GHz Frequency-Coded Chipless Wireless RFID Tag". In 2019 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP). IEEE, 2019. http://dx.doi.org/10.1109/imws-amp.2019.8880140.

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Hong, Liang–Peng, Jian Wang e Hao Zhang. "Long-Range Reading Compact Antenna for Antimental UHF RFID Tag". In 2023 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP). IEEE, 2023. http://dx.doi.org/10.1109/imws-amp57814.2023.10381183.

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Lee, Eunseok, Xibi Chen, Maitreyi Ashok, Jaeyeon Won, Anantha Chandrakasan e Ruonan Han. "12.5 A Packageless Anti-Tampering Tag Utilizing Unclonable Sub-THz Wave Scattering at the Chip-Item Interface". In 2024 IEEE International Solid-State Circuits Conference (ISSCC). IEEE, 2024. http://dx.doi.org/10.1109/isscc49657.2024.10454498.

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Liu, Bofu, Ya Li, Bei Huang, Junlong Li e Hui Liu. "A Compact HF-UHF Dual-Band Wearable RFID Tag for Body Temperature Monitoring". In 2022 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP). IEEE, 2022. http://dx.doi.org/10.1109/imws-amp54652.2022.10107117.

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Solbach, Klaus, Ali Alhaj Abbas, Mohammed El-Absi, Ashraf Abuelhaija e Thomas Kaiser. "Experimental Demonstration of Double-Notch RCS Spectral Signature of Corner Reflector Tag for THz Self-Localization System". In 2020 Third International Workshop on Mobile Terahertz Systems (IWMTS). IEEE, 2020. http://dx.doi.org/10.1109/iwmts49292.2020.9166312.

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Rapporti di organizzazioni sul tema "THz Tag"

Kindberg, T., e S. Hawke. The 'tag' URI Scheme. RFC Editor, ottobre 2005. http://dx.doi.org/10.17487/rfc4151.

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Quinn, Cathy A., Philip K. Hamilton, Scott D. Kraus e Christopher K. Slay. An assessment of wounds caused by the attachment of remote sensing tags to North Atlantic right whales (Eubalaena Glacialis): 1988 - 1997. New England Aquarium and Woods Hole Oceanographic Institution, febbraio 2023. http://dx.doi.org/10.1575/1912/29702.

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Because of the increase in usage of remote sensing tags to track the migration and movements of cetaceans, it has become increasingly important to assess the impact of such techniques on the target species. Between 1988 and 1997, 55 tags (41 satellite telemetry, 14 VHF or acoustic radio transmitter) were attached to 49 North Atlantic right whales (Eubalaena glacialis). All tags had implantable barbs or were fully implanted below the dermis. Right whales are photographically identifiable and the New England Aquarium curates the North Atlantic catalog, which currently numbers 374 individuals. The photo catalog has made it possible for tagged individuals to be tracked after the tag falls off the whale. Photo documentation during and after tagging provides an opportunity to monitor physiological effects from tags and healing responses to tags.

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Corscadden, Louise, e Arpaporn Sutipatanasomboon. Rodent Tagging And Identification. ConductScience, gennaio 2023. http://dx.doi.org/10.55157/cs20230109.

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Animal tagging is a means to identify and distinguish all the individual animals of interest, which applies to wildlife, farm, or laboratory animals. It involves attaching a tag to a specific animal part that contains a unique identifier for each animal. The identifier can be numbers, alphabets, or a combination of both that distinguish and track the animals throughout their lifespans. In rodents, tagging is the most popular identification approach. Typically, tags are made from metals and attached to the outer part of rodent ears, or the ear pinna. In rare circumstances, metal tags can also be attached to the rodent’s leg or tail.

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Jenkins, Glenn P., Siamand Hesami, Osaid Alshamleh, Anastasiya Yarygina e Carola Pessino. Cost-Benefit Analysis Methodology for Administrative Prefilling of Value-Added Tax Returns: An Application for Chile. Inter-American Development Bank, agosto 2023. http://dx.doi.org/10.18235/0005068.

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Tax administrations (TAs) worldwide have increasingly been moving toward digitalization to increase process efficiency and service delivery. This technical note presents a methodology, and its application for the case of Chile, for evaluating the benefits and costs of a particular component of the TAs digital transformation: prefilling of value-added tax (VAT) returns. The analysis identifies and allocates the net benefits from both the financial and the economic perspectives considering two major stakeholders: the government and taxpayers. The results show that prefilled VAT returns could benefit TAs and taxpayers, with a reduction in taxpayers compliance costs being a primary benefit. The application of the model to the Chilean case shows the economic net present value of the prefilling of VAT returns is US$5.66 billion, with a net benefit to the private sector of US$1.729 billion and a public sector or budgetary impact of US$3.391 billion. Sensitivity analyses show that the results are robust to changes in assumptions, except for the impact on government revenues from the change in taxpayer compliance. Overall, the results show that prefilling tax returns is an effective solution to high taxpayer compliance costs, the associated tax gap, and the risk of burdensome inspections, audit, and tax evasion.

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Cabral, Marika, e Caroline Hoxby. The Hated Property Tax: Salience, Tax Rates, and Tax Revolts. Cambridge, MA: National Bureau of Economic Research, novembre 2012. http://dx.doi.org/10.3386/w18514.

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Waud, Roger. Tax Aversion, Deficits and the Tax Rate-Tax Revenue Relationship. Cambridge, MA: National Bureau of Economic Research, gennaio 1985. http://dx.doi.org/10.3386/w1533.

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Bracuti, A. J., e C. Y. Manning. The Synthesis of Triaminoguanidinium Azide (TAZ). Fort Belvoir, VA: Defense Technical Information Center, agosto 1988. http://dx.doi.org/10.21236/ada199160.

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Carnicero, Javier, Juan Ignacio Barrachina e Agnès Aguiló. Beyond the Price Tag Understanding the True Cost of Digital Health Tools. Inter-American Development Bank, maggio 2023. http://dx.doi.org/10.18235/0004915.

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Total Cost of Ownership (TCO) is a cost calculation method that, when applied to the field of digital solution implementation, provides a final figure that reflects not only the cost of acquisition (buy, build or adapt) but also those related to the use, maintenance and closure of such solution. Total cost of ownership analysis is a financial estimate of all the direct and indirect costs of acquiring, commissioning, operating, maintaining and disposing of a product or system.

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Poterba, James. The Estate Tax and After-Tax Investment Returns. Cambridge, MA: National Bureau of Economic Research, dicembre 1997. http://dx.doi.org/10.3386/w6337.

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Carlson, Curtis, e Gilbert Metcalf. Energy Tax Incentives and the Alternative Minimum Tax. Cambridge, MA: National Bureau of Economic Research, giugno 2008. http://dx.doi.org/10.3386/w14110.

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