Literatura académica sobre el tema "Lak imprints"

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Artículos de revistas sobre el tema "Lak imprints"

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Edwards, Carol A., Nozomi Takahashi, Jennifer A. Corish y Anne C. Ferguson-Smith. "The origins of genomic imprinting in mammals". Reproduction, Fertility and Development 31, n.º 7 (2019): 1203. http://dx.doi.org/10.1071/rd18176.

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Genomic imprinting is a process that causes genes to be expressed according to their parental origin. Imprinting appears to have evolved gradually in two of the three mammalian subclasses, with no imprinted genes yet identified in prototheria and only six found to be imprinted in marsupials to date. By interrogating the genomes of eutherian suborders, we determine that imprinting evolved at the majority of eutherian specific genes before the eutherian radiation. Theories considering the evolution of imprinting often relate to resource allocation and recently consider maternal–offspring interactions more generally, which, in marsupials, places a greater emphasis on lactation. In eutherians, the imprint memory is retained at least in part by zinc finger protein 57 (ZFP57), a Kruppel associated box (KRAB) zinc finger protein that binds specifically to methylated imprinting control regions. Some imprints are less dependent on ZFP57invivo and it may be no coincidence that these are the imprints that are found in marsupials. Because marsupials lack ZFP57, this suggests another more ancestral protein evolved to regulate imprints in non-eutherian subclasses, and contributes to imprinting control in eutherians. Hence, understanding the mechanisms acting at imprinting control regions across mammals has the potential to provide valuable insights into our understanding of the origins and evolution of genomic imprinting.
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Kato, Y., W. M. Rideout, K. Hilton, S. C. Barton, Y. Tsunoda y M. A. Surani. "Developmental potential of mouse primordial germ cells". Development 126, n.º 9 (1 de mayo de 1999): 1823–32. http://dx.doi.org/10.1242/dev.126.9.1823.

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There are distinctive and characteristic genomic modifications in primordial germ cells that distinguish the germ cell lineage from somatic cells. These modifications include, genome-wide demethylation, erasure of allele-specific methylation associated with imprinted genes, and the re-activation of the X chromosome. The allele-specific differential methylation is involved in regulating the monoallelic expression, and thus the gene dosage, of imprinted genes, which underlies functional differences between parental genomes. However, when the imprints are erased in the germ line, the parental genomes acquire an equivalent epigenetic and functional state. Therefore, one of the reasons why primordial germ cells are unique is because this is the only time in mammals when the distinction between parental genomes ceases to exist. To test how the potentially imprint-free primordial germ cell nuclei affect embryonic development, we transplanted them into enucleated oocytes. Here we show that the reconstituted oocyte developed to day 9.5 of gestation, consistently as a small embryo and a characteristic abnormal placenta. The embryo proper also did not progress much further even when the inner cell mass was ‘rescued’ from the abnormal placenta by transfer into a tetraploid host blastocyst. We found that development of the experimental conceptus was affected, at least in part, by a lack of gametic imprints, as judged by DNA methylation and expression analysis of several imprinted genes. The evidence suggests that gametic imprints are essential for normal development, and that they can neither be initiated nor erased in mature oocytes; these properties are unique to the developing germ line.
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MAMTANI, MANISH A. y POULOMI SENGUPTA. "Significance of AMS analysis in evaluating superposed folds in quartzites". Geological Magazine 147, n.º 6 (25 de mayo de 2010): 910–18. http://dx.doi.org/10.1017/s0016756810000397.

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AbstractQuartzites tend to be compositionally homogeneous, and because of this, deformation related fabric elements (foliations and lineations) are poorly developed in them. This makes structural analysis of deformed quartzites challenging. The measurement of anisotropy of magnetic susceptibility (AMS) is useful for recognizing structural imprints in rocks that lack mesoscopic fabrics and the present study is carried out with an aim to demonstrate the robustness of AMS in analysing such deformation imprints in quartzites. AMS data of samples from folded quartzites located in an approximately 10 km2 area around Galudih (eastern India) are presented. Although on a regional scale, superposed deformation and ductile shearing are known from the area, the investigated quartzites do not preserve mesoscopic evidence of these large-scale features and have developed folds that plunge gently towards the SE with a vertical NW–SE-striking axial plane. The magnetic foliation recorded from AMS analysis is parallel to the axial plane, while the orientation of the magnetic lineation varies from SE through vertical to NW. This is similar to the large-scale fold axis variations recorded in various regional domains mapped over an area of about 200 km2. It is concluded that although the imprint of regional superposed deformation is not obvious on the mesoscopic scale in the quartzites around Galudih, this imprint can be detected from the magnetic fabric. The present study thus highlights the usefulness of AMS in analysing superposed folds in quartzites.
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Geisert, Rodney D., Amanda L. Schmelzle, Michael F. Smith y Jonathan A. Green. "Altering rat sexual behavior to teach hormonal regulation of brain imprinting". Advances in Physiology Education 43, n.º 4 (1 de diciembre de 2019): 458–66. http://dx.doi.org/10.1152/advan.00081.2019.

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In this teaching laboratory, students design and perform an experiment to determine estrogen’s role in imprinting the brain of neonatal rats to express either male or female sexual behavior. A discussion question is provided before the laboratory exercise in which each student is asked to search the literature and provide written answers to questions and to formulate an experiment to test the role of estrogen in imprinting the mating behavior of male and female rats. Students discuss their answers to the questions in laboratory with the instructor and design an experiment to test their hypothesis. In male rats, testosterone is converted by aromatase expressed by neurons in the brain to estrogen. Production of estrogen in the brain of neonatal rats imprints mating behavior in males, where a lack of estrogen action in the brain imprints female sexual behavior. The model involves administering exogenous testosterone to imprint male behavior in female pups or administration of an aromatase inhibitor (letrozole) or an estrogen receptor antagonist (ICI 182,780) to imprint female sexual behavior in male pups. In the model, litters of neonatal pups are treated with either carrier (control), testosterone propionate, aromatase inhibitor (letrozole), or an estrogen receptor antagonist (ICI 182,780) postnatally on days 1 and 3. Alteration of mating behavior is evaluated through the numbers of males and females that breed and establish pregnancy. This is a very simple protocol that provides an excellent experiment for student discussion on the effects of hormone action on imprinting brain sexual behavior.
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Menheniott, Trevelyan R., Kathryn Woodfine, Reiner Schulz, Andrew J. Wood, David Monk, Andrew S. Giraud, H. Scott Baldwin, Gudrun E. Moore y Rebecca J. Oakey. "Genomic Imprinting of Dopa decarboxylase in Heart and Reciprocal Allelic Expression with Neighboring Grb10". Molecular and Cellular Biology 28, n.º 1 (29 de octubre de 2007): 386–96. http://dx.doi.org/10.1128/mcb.00862-07.

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ABSTRACT By combining a tissue-specific microarray screen with mouse uniparental duplications, we have identified a novel imprinted gene, Dopa decarboxylase (Ddc), on chromosome 11. Ddc_exon1a is a 2-kb transcript variant that initiates from an alternative first exon in intron 1 of the canonical Ddc transcript and is paternally expressed in trabecular cardiomyocytes of the embryonic and neonatal heart. Ddc displays tight conserved linkage with the maternally expressed and methylated Grb10 gene, suggesting that these reciprocally imprinted genes may be coordinately regulated. In Dnmt3L mutant embryos that lack maternal germ line methylation imprints, we show that Ddc is overexpressed and Grb10 is silenced. Their imprinting is therefore dependent on maternal germ line methylation, but the mechanism at Ddc does not appear to involve differential methylation of the Ddc_exon1a promoter region and may instead be provided by the oocyte mark at Grb10. Our analysis of Ddc redefines the imprinted Grb10 domain on mouse proximal chromosome 11 and identifies Ddc_exon1a as the first example of a heart-specific imprinted gene.
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Hurtado, Holly, Jerald D. Harris y Andrew R. C. Milner. "Possible eucynodont (Synapsida: Cynodontia) tracks from a lacustrine facies in the Lower Jurassic Moenave Formation of southwestern Utah". PeerJ 12 (26 de junio de 2024): e17591. http://dx.doi.org/10.7717/peerj.17591.

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Eight fossil tetrapod footprints from lake-shore deposits in the Lower Jurassic Moenave Formation at the St. George Dinosaur Discovery Site (SGDS) in southwestern Utah cannot be assigned to the prevalent dinosaurian (Anomoepus, Eubrontes, Gigandipus, Grallator, Kayentapus) or crocodyliform (Batrachopus) ichnotaxa at the site. The tridactyl and tetradactyl footprints are incomplete, consisting of digit- and digit-tip-only imprints. Seven of the eight are likely pes prints; the remaining specimen is a possible manus print. The pes prints have digit imprint morphologies and similar anterior projections and divarication angles to those of Brasilichnium, an ichnotaxon found primarily in eolian paleoenvironments attributed to eucynodont synapsids. Although their incompleteness prevents clear referral to Brasilichnium, the SGDS tracks nevertheless suggest a eucynodont track maker and thus represent a rare, Early Mesozoic occurrence of such tracks outside of an eolian paleoenvironment.
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Levy, Melanie. "In dubio pro CPR? The Controversial Status of ‘Do Not Resuscitate’ Imprints on the Human Body – a Swiss Innovation". European Journal of Health Law 27, n.º 2 (14 de mayo de 2020): 125–45. http://dx.doi.org/10.1163/15718093-bja10015.

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Abstract ‘Do not resuscitate’ (DNR) imprints on the human body have recently appeared in medical practice. These non-standard DNR orders (e.g., tattoos, stamps, patches) convey the patient’s refusal of resuscitation efforts should he be incapable of doing so. The article focuses on such innovative tools to express one’s end-of-life wishes. Switzerland provides a unique example, as ‘No Cardio-Pulmonary Resuscitation’ stamps and patches have been commercialised. The article discusses the challenging legal questions as to the validity of non-standard DNR orders imprinted on the human body. It analyses the obligation of healthcare providers to honour such orders, either as an advance directive or an expression of an individual’s presumed wishes, and withhold treatment. Finally, the article addresses the balancing of interests between the presumed wishes of an unconscious patient and his best interests of being resuscitated and potentially staying alive, a dilemma facing healthcare providers in a medical emergency.
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Ahn, Jinsoo, In-Sul Hwang, Mi-Ryung Park, Seongsoo Hwang y Kichoon Lee. "Genomic Imprinting at the Porcine DIRAS3 Locus". Animals 11, n.º 5 (3 de mayo de 2021): 1315. http://dx.doi.org/10.3390/ani11051315.

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The epigenetic mechanisms underlying genomic imprinting include DNA methylation and monoallelic expression of genes in close proximity. Although genes imprinted in humans and mice have been widely characterized, there is a lack of detailed and comprehensive studies in livestock species including pigs. The purpose of this study was to investigate a detailed methylation status and parent-of-origin-specific gene expression within the genomic region containing an underexamined porcine DIRAS3 locus. Through whole-genome bisulfite sequencing (WGBS) and RNA sequencing (RNA-seq) of porcine parthenogenetic embryos and analyses of public RNA-seq data from adult pigs, DNA methylation and monoallelic expression pattern were investigated. As a result, maternal hypermethylation at the DIRAS3 locus and hypothalamus-specific and monoallelic expression of the DIRAS3 gene were found in pigs. In conclusion, the findings from this study suggest that the presence of maternal hypermethylation, or imprints, might be maintained and related to monoallelic expression of DIRAS3 during pig development.
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James, Elizabeth. "Kegan Paul, a Victorian Imprint (review)". Libraries & the Cultural Record 36, n.º 2 (2001): 385–87. http://dx.doi.org/10.1353/lac.2001.0037.

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De los Santos, Maxy B., Steev Loyola, Erika S. Perez-Velez, Rocio del Pilar Santos, Ivonne Melissa Ramírez y Hugo O. Valdivia. "Sampling is decisive to determination of Leishmania (Viannia) species". PLOS Neglected Tropical Diseases 18, n.º 4 (25 de abril de 2024): e0012113. http://dx.doi.org/10.1371/journal.pntd.0012113.

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Background Accuracy of molecular tools for the identification of parasites that cause human cutaneous leishmaniasis (CL) could largely depend on the sampling method. Non-invasive or less-invasive sampling methods such as filter paper imprints and cotton swabs are preferred over punch biopsies and lancet scrapings for detection methods of Leishmania based on polymerase chain reaction (PCR) because they are painless, simple, and inexpensive, and of benefit to military and civilian patients to ensure timely treatment. However, different types of samples can generate false negatives and there is a clear need to demonstrate which sample is more proper for molecular assays. Methodology Here, we compared the sensitivity of molecular identification of different Leishmania (Viannia) species from Peru, using three types of sampling: punch biopsy, filter paper imprint and lancet scraping. Different composite reference standards and latent class models allowed to evaluate the accuracy of the molecular tools. Additionally, a quantitative PCR assessed variations in the results and parasite load in each type of sample. Principal findings Different composite reference standards and latent class models determined higher sensitivity when lancet scrapings were used for sampling in the identification and determination of Leishmania (Viannia) species through PCR-based assays. This was consistent for genus identification through kinetoplastid DNA-PCR and for the determination of species using FRET probes-based Nested Real-Time PCR. Lack of species identification in some samples correlated with the low intensity of the PCR electrophoretic band, which reflects the low parasite load in samples. Conclusions The type of clinical sample can directly influence the detection and identification of Leishmania (Viannia) species. Here, we demonstrated that lancet scraping samples consistently allowed the identification of more leishmaniasis cases compared to filter paper imprints or biopsies. This procedure is inexpensive, painless, and easy to implement at the point of care and avoids the need for anesthesia, surgery, and hospitalization and therefore could be used in resource limited settings for both military and civilian populations.
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Libros sobre el tema "Lak imprints"

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Liu, Wenlong y Xunci Chen. Zhejiang Sheng wen xian zhan lan hui wen xian xu lu. 8a ed. Nanjing Shi: Feng huang chu ban she, 2020.

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Nweze, C. C. Justice Philip Nnaemeka-Agu: Imprints on law and jurisprudence. Enugu, Nigeria: Fourth Dimension Pub. Co., 1996.

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Li, Ling. Lan tai wan juan: Du "Han shu yi wen zhi". 8a ed. Beijing Shi: Sheng huo, du shu, xin zhi san lian shu dian, 2011.

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Robins, Deri. Motifs imprimés. Paris: Fleurus, 1994.

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Collection, Historic New Orleans, ed. Bibliography of New Orleans imprints, 1764-1864. New Orleans, LA: Historic New Orleans Collection, 1989.

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Tenorio, José Orozco. Las publicaciones periódicas mexicanas. México, D.F: Instituto Technológico Autónomo de México, 1986.

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Fernández, Amancio Labandeira. Introducción a las tipobibliografías hispanoamericanas. Madrid: Fundación Histórica Tavera, 1997.

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Matthews, Elizabeth W. Seventeenth century English law reports in folio: Description of selected imprints. Buffalo: W.S. Hein, 1986.

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García, Rafael Pagaza. Las obras de consulta mexicanas, siglos XVI al XX. México: Universidad Nacional Autónoma de México, 1990.

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Li, Guowen. Gu lao de ji yi: Yunnan min zu gu ji. 8a ed. Kunming Shi: Yunnan jiao yu chu ban she, 2000.

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Capítulos de libros sobre el tema "Lak imprints"

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Bodensteiner, Julia. "On the Apparent Lack of Massive Be Stars with Main-Sequence Companions". En Observational Imprints of Binary Evolution on B- and Be-star Populations, 51–61. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-19489-4_3.

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Agsous, Sadia. "The Making Stage of the Modern Palestinian Arabic Novel in the Experiences of the udabāʾ Khalīl Baydas (1874–1949) and Iskandar al-Khūri al-BeitJāli (1890–1973)". En European Cultural Diplomacy and Arab Christians in Palestine, 1918–1948, 63–78. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55540-5_4.

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AbstractIn 1946, the first Palestinian book fair took place at the Arab Orthodox Union Club in Jerusalem. What lay behind this event was a process that paralleled the political life revolving around the formation of local nationalism, a complex process of cultural and literary development within the Arab Nahda (‘Awakening’ or Renaissance) movement in which the Palestinians left their imprint through the press, literature, translation and other cultural fields. This chapter discusses the cultural environment of Khalīl Baydas and Iskandar al-Khūrī al-BeitJālī who initiated the modern Palestinian Arabic novel, both publishing in 1920. It addresses the Palestinian Nahda and the Russian educational enterprise as the formative context of these two authors and propose that Khalīl Baydas should be recognised as the architect of Palestinian literary realism.
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Gandil, Pierre. "Le catalogue de 1795 des imprimés de la bibliothèque de Clairvaux". En Les cisterciens et la transmission des textes (XIIe-XVIIIe siècles), 157–65. Turnhout: Brepols Publishers, 2018. http://dx.doi.org/10.1484/m.bhcma-eb.5.114617.

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Jouanno, Corinne. "Avatars duRoman d'Alexandreà l'époque tardo- et post-byzantine : réflexions sur la recension ζ et la polymorphie de la tradition pseudo-callisthénienne". En Alexandre le Grand à la lumière des manuscrits et des premiers imprimés en Europe (XIIe-XVIe siècle), 33–47. Turnhout: Brepols Publishers, 2015. http://dx.doi.org/10.1484/m.ar-eb.5.108680.

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Gaullier-Bougassas, Catherine. "Les manuscrits italiens desRomans d’Alexandrefrançais en vers et de l’Histoire ancienne jusqu’à César(xiiieetxivesiecles) : lectures originales et créations inédites". En Alexandre le Grand à la lumière des manuscrits et des premiers imprimés en Europe (XIIe-XVIe siècle), 49–80. Turnhout: Brepols Publishers, 2015. http://dx.doi.org/10.1484/m.ar-eb.5.108681.

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Bologna, Corrado. "À propos de l’Istoria di Alessandro Magnode Domenico Scolari et d’un volgarizzamento enluminé de l’Historia de preliis J3". En Alexandre le Grand à la lumière des manuscrits et des premiers imprimés en Europe (XIIe-XVIe siècle), 81–100. Turnhout: Brepols Publishers, 2015. http://dx.doi.org/10.1484/m.ar-eb.5.108682.

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Borriero, Giovanni. "Notes sur la « matière d’Alexandre » en Italie et sur le manuscrit d’une version en prose duLiber Allexandri(Florence, Biblioteca Nazionale Centrale, II I 363)". En Alexandre le Grand à la lumière des manuscrits et des premiers imprimés en Europe (XIIe-XVIe siècle), 101–15. Turnhout: Brepols Publishers, 2015. http://dx.doi.org/10.1484/m.ar-eb.5.108683.

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Bizzarri, Hugo O. "Les enseignements d’Aristote à Alexandre d’après le manuscrit 6545 de la Biblioteca Nacional de España : un manuscrit pour la noblesse". En Alexandre le Grand à la lumière des manuscrits et des premiers imprimés en Europe (XIIe-XVIe siècle), 117–31. Turnhout: Brepols Publishers, 2015. http://dx.doi.org/10.1484/m.ar-eb.5.108684.

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Tilliette, Jean-Yves. "L’Alexandréidede Gautier de Châtillon dans son contexte : les manuscrits et leur(s) usage(s)". En Alexandre le Grand à la lumière des manuscrits et des premiers imprimés en Europe (XIIe-XVIe siècle), 135–52. Turnhout: Brepols Publishers, 2015. http://dx.doi.org/10.1484/m.ar-eb.5.108685.

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Cizek, Alexandru. "Quelques particularités inédites de la tradition manuscrite de l’Historia de preliis J3". En Alexandre le Grand à la lumière des manuscrits et des premiers imprimés en Europe (XIIe-XVIe siècle), 153–69. Turnhout: Brepols Publishers, 2015. http://dx.doi.org/10.1484/m.ar-eb.5.108686.

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Actas de conferencias sobre el tema "Lak imprints"

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Vijayaraghavan, Athulan, Stephen V. Jayanathan, Moneer M. Helu y David A. Dornfeld. "Design and Fabrication of a Roller Imprinting Device for Microfluidic Device Manufacturing". En ASME 2008 International Manufacturing Science and Engineering Conference collocated with the 3rd JSME/ASME International Conference on Materials and Processing. ASMEDC, 2008. http://dx.doi.org/10.1115/msec_icmp2008-72202.

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Microfluidic devices are gaining popularity in a variety of applications, ranging from molecular biology to bio-defense. However, the widespread adoption of this technology is constrained by the lack of efficient and cost-effective manufacturing processes. This paper focuses on the roller imprinting process, which is being developed to rapidly and inexpensively fabricate micro-fluidic devices. In this process, a cylindrical roll with raised features on its surface creates imprints by rolling over a fixed workpiece substrate and mechanically deforming it. Roller imprinting aims to replace processes that were developed for laboratory scale prototyping which tend to not be scalable and have high equipment requirements and overheads. We discuss the limitations of PDMS soft lithography in large-scale manufacture of microfluidic devices. We also discuss the design, fabrication, and testing of a simple roller imprinting device. This imprinter has been developed based on the principles of precision machine design and is implemented using a three-axis machine tool for actuation and position measurement. A framework for the micro-machining of precision imprint rolls is also presented.
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Resnick, Douglas J., William J. Dauksher, David P. Mancini, Kevin J. Nordquist, Todd C. Bailey, Stephen C. Johnson, Nicholas A. Stacey et al. "Imprint lithography: lab curiosity or the real NGL". En Microlithography 2003, editado por Roxann L. Engelstad. SPIE, 2003. http://dx.doi.org/10.1117/12.490126.

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Allen, Richard G. y Lee R. Dettmann. "Monitoring lap forces during final polishing of the MMT 6.5-m honeycomb mirror". En Optical Fabrication and Testing. Washington, D.C.: Optica Publishing Group, 1998. http://dx.doi.org/10.1364/oft.1998.oma.4.

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The new 6.5-m honeycomb mirror for the Multiple Mirror Telescope Observatory on Mt. Hopkins was polished with a 1.2-m stress lap on the Large Optical Generator at the Steward Observatory Mirror Lab. Problems during the last few months of polishing led to the development of a system for monitoring the drag forces on this lap. Records of the drag forces during each stroke were then used to compute an effective drag coefficient as well as the frictional power dissipated per unit area of mirror as a function of radius. While the glass removal rate was found to track the observed distribution of expended frictional energy quite nicely, the system turned out to be even more valuable as a tool for identifying anomalous drag conditions before they put a significant imprint on the mirror.
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Stewart, Michelle. "Ghostly Imprints: Revisiting the Tradition of the Death Mask in Digital Clay". En Arts Research Africa 2022 Conference Proceedings. Arts Research Africa, 2022. http://dx.doi.org/10.54223/10539/35905.

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This paper explores the representation of the dead through a creative project that involves 3D digital sculptures inspired by forensic facial photographs of unclaimed deceased in government morgues as well as posthumous photographs of the author’s mother-in-law. The project draws on the tradition of death masks and aims to create final portraits that commemorate the individuals and acknowledge the transcendental aspects of death masks. The author’s work is situated within the discourse of art theory and history, rather than forensic art, and emphasises the artistic and conceptual nature of the sculptures. The project is associated with the International Committee of the Red Cross’s Missing and Deceased Migrant Project and explores the humanitarian implications of migrant deaths in South Africa. The paper also delves into the history and evolution of death masks in Western culture, highlighting their significance as representations of true faces and their use in phrenology.
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Lisa M. Kindschy y Evangelyn C. Alocilja. "A Review of Molecularly Imprinted Polymers for Biosensor Development for Food and Agricultural Applications". En 2003, Las Vegas, NV July 27-30, 2003. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2003. http://dx.doi.org/10.13031/2013.14229.

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Duval, Suzanne. "Un siècle épistolaire par le menu. La table des matières dans les recueils de lettres imprimés du XVIIe siècle". En « S’asseoir à la table ». La table des matières, du Moyen Âge à nos jours. Fabula, 2021. http://dx.doi.org/10.58282/colloques.7266.

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Monferran, Jean-Charles. "Table des incipit et table des matières dans les livres imprimés de poésie française du XVIe siècle : remarques, sondages, hypothèses". En « S’asseoir à la table ». La table des matières, du Moyen Âge à nos jours. Fabula, 2021. http://dx.doi.org/10.58282/colloques.7277.

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Fiorito, Mariana. "Amplios terrenos urbanos de óptima ubicación: la escuela de enseñanza media en la ciudad argentina (1934-1944)". En Seminario Internacional de Investigación en Urbanismo. Barcelona: Instituto de Arte Americano. Universidad de Buenos Aires, 2013. http://dx.doi.org/10.5821/siiu.5917.

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En la Argentina de los años treinta tanto las obras de infraestructura como las de arquitectura estatal adoptaron un carácter tendiente al progreso y al desarrollo social ya que ciertos problemas sociales devinieron públicos y agenda de gobierno en el intento de paliar la desocupación y de legitimar el accionar político. Específicamente dentro de las obras públicas, las escuelas de enseñanza media construidas por el Estado fueron mojones que señalaron en las ciudades del país una doble vía de intervención: la ocupación efectiva del territorio y la modernización. El presente artículo procura enfocar en la cuestión de la localización de estos artefactos urbanos con el objeto de demostrar que tanto la selección de los terrenos como de sus características respondía a la idea que el edificio se convirtiera un punto de referencia con una impronta majestuosa dentro de las ciudades menores o de nuevas zonas urbanas en las más consolidadas. During the thirties, in Argentina both the state in frastructure and architectural works adopted a char acter tending to the progress and social development as certain s ocial problems turned public and government agenda in an attempt to alleviate unemployment and legitimize th e political action. Especially within the public wo rks, the high schools built by the State were landmarks that indi cated in the cities two ways of intervention: the e ffective occupation of the territory and the modernization. This article of limited scope seeks to focus on the question of the location of these urban artifacts in order to d emonstrate that the selection of the land and its f eatures answered to the idea that the building should becom e a benchmark with a majestic imprint in smaller ci ties or new urban areas in more established ones.
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Pompejano, Federica. "The Planning of Socialist Urbanity: The New City of Kukës in Albania". En The 39th Annual Conference of the Society of Architectural Historians Australia and New Zealand. PLACE NAME: SAHANZ, 2023. http://dx.doi.org/10.55939/a5035pmg1t.

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After the end of the Second World War, Albania stepped into one of the harshest dictatorships in Europe during the twentieth century. The communist regime led by Enver Hoxha soon implemented large modernisation and industrialisation schemes, transforming the entire territory into a vast construction site. Among those modernisation processes, the exploitation of the huge water network to produce hydroelectric energy was one of the regime’s main objectives, to supply electricity to the entire country by 1971. Thus, between 1960s and the 1980s, the Drin River, one of the main rivers in Albania, was deeply transformed into a source of hydroelectrical power. After the construction of the hydropower plant “HEC-Vaut të Dejës,” the hydropower plant “HEC-Drita e Partisë” followed on the upper part of the river and with its dam forming the reservoir that nowadays is called Lake of Fjerza. The filling of the reservoir caused the flooding of the old citadel of Kukës, submerged by the creation of the new lake. As consequence, to reiterate and imprint the ideal of a new classless society, the communist regime planned to build from scratch the new city of Kukës, hence reflecting in its urban planning and architecture the socialist ideology. Through the analysis of archival sources and literature on the case study, and the extensive documentation collected during recent fieldwork activities, the paper aims to explore how the entanglement of architecture and urban planning took part in shaping the new socialist urbanity in one of the most remote mountainous areas of Albania.
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Andreini, A., C. Bianchini, A. Ceccherini, B. Facchini, L. Mangani, G. Cinque y S. Colantuoni. "Investigation of Circular and Shaped Effusion Cooling Arrays for Combustor Liner Application—Part 2: Numerical Analysis". En ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-60038.

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A numerical analysis of two different effusion cooled plates, with a feasible arrangement for combustor liner application, is presented in this paper. Though having the same porosity and very shallow injection angle (17°), the first configuration presents a “conventional” circular drilling, while the other has “shaped” holes with such an elliptical cross-section that leads to a circular imprint on the cooled surface. Either geometries were the object of an experimental survey in which both adiabatic and overall effectiveness were measured. In order to compensate for the lack of detailed aerodynamic measurements, 3D CFD computations were performed for the two geometries. Steady state RANS calculations were carried out using a k–ε Two Layer turbulence model, both in the standard isotropic and in an algebraically corrected non isotropic version specifically tuned to better predict the lateral spreading of jets in a cross flow. Flow characteristic reproduce typical effusion cooled combustor liner conditions with blowing ratio of 5 and coolant jet Reynolds number of 12500. Even though good agreement could not be obtained comparing thermal adiabatic effectiveness with experiments, the findings of the experiments regarding the rating of the cooling efficiency of the two configurations were confirmed. Additionally, conjugate simulations were performed for the circular hole geometry in order to quantify heat transfer effects and to directly compare them with raw experimental overall effectiveness data.
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Informes sobre el tema "Lak imprints"

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Moro, Leben Nelson y Tong Deng Anei. Considérations clés : Atténuer l’insécurité alimentaire chronique au Soudan du Sud. Institute of Development Studies, julio de 2024. http://dx.doi.org/10.19088/sshap.2024.019.

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La République du Soudan du Sud est confrontée à une insécurité alimentaire chronique depuis plusieurs décennies et, plus particulièrement, depuis les cinq dernières années. Cette insécurité alimentaire chronique est le résultat d’une combinaison de facteurs, notamment des conflits persistants, la fragilité socioéconomique, le manque d’infrastructures, le changement climatique ainsi que les conflits et guerres au Soudan, en Ukraine et au Moyen-Orient. En réponse, le gouvernement du Soudan du Sud, les agences des Nations Unies et les organismes non gouvernementaux internationaux et nationaux ont adopté des mesures pour faire face à la crise humanitaire actuelle. Investir dans le secteur agricole peut offrir un moyen durable d’atténuer la crise d’insécurité alimentaire chronique. Cette note stratégique décrit l’ampleur de l’insécurité alimentaire à laquelle sont confrontées les populations du Soudan du Sud. Elle analyse également les causes de l’insécurité alimentaire et les mesures prises par les organismes et partenaires gouvernementaux et non gouvernementaux, et elle fournit des considérations à l’intention de ces organismes afin de soutenir l’éradication de l’insécurité alimentaire, notamment en renforçant l’agriculture et les moyens de subsistance. Cette note stratégique s’appuie sur des textes publiés, de la littérature grise (en particulier des rapports d’organisations gouvernementales et non gouvernementales), des communiqués de presse imprimés et en ligne, et des discussions avec des responsables politiques et des fonctionnaires d’institutions qui se concentrent sur l’insécurité alimentaire au Soudan du Sud.
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