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Journal articles on the topic 'Nacke'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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1

McKee, Connor. "A. Drachen, P. Mirza-Babaei and L. Nacke: Games User Research." Computer Games Journal 9, no. 3 (June 22, 2020): 309–10. http://dx.doi.org/10.1007/s40869-020-00109-1.

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2

Loughlin, Patricia. "In Search of Capable Allies: Frances Nacke Noel and Women's Labor Activism in Los Angeles." Southern California Quarterly 82, no. 1 (2000): 61–74. http://dx.doi.org/10.2307/41171991.

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3

Katz, S. "Frances Nacke Noel and "Sister Movements": Socialism, Feminism and Trade Unionism in Los Angeles, 1909-1916." California History 67, no. 3 (September 1, 1988): 180–89. http://dx.doi.org/10.2307/25158477.

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4

Doherty, Shawn, Evan Palmer, and Laura Strater. "Gamification: Current Research and Applications." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 61, no. 1 (September 2017): 2096–99. http://dx.doi.org/10.1177/1541931213602006.

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Gamification is the concept of applying game mechanics to non-game activities (Deterding, Dixon, Khaled, & Nacke, 2011). This concept has received a lot of recent interest from industry and many examples have emerged, especially within the fields of business and marketing, but has grown to encompass such varied examples as health care, training, prosocial behavior, and law enforcement. The purpose of this panel is to discuss some current research and applications of the gamification concept from a varied set of perspectives. The first panelist will describe lessons learned from research on gamification. The second panelist will describe gamification within an industrial context. The third panelist will discuss gamification concepts applied to education. A discussion among panelists and attendees of future trends and needs for gamification is expected.
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5

Tinerella, Vincent P. "Secret Sisters: Women Religious under European Communism Collection at the Catholic Theological Union." Theological Librarianship 3, no. 2 (October 1, 2010): 8–15. http://dx.doi.org/10.31046/tl.v3i2.154.

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After the fall of Communism in Eastern Europe, Pope John Paul II asked Catholics around the world to assist members of the Church who had suffered under the yoke of communist oppression as a result of their commitment to Catholicism. Sr. Margaret Savoie, and Sr. Margaret Nacke, Sisters of St. Joseph, Concordia, Kansas, decided that the experiences of Catholic women in religious communities – “surviving sisters” – was an important story that needed to be documented, preserved, and made available for future generations and researchers. In 2003, Sisters Mary and Margaret began their research, recording the plight of Catholic sisters in eight countries, Bulgaria, Czech Republic, Hungary, Lithuania, Romania, Slovakia, and the Ukraine, from the rise of Stalin until the collapse of European communism. Over 200 testimonials now reside at the Paul Bechtold Library at the Catholic Theological Union in Chicago under the auspices of the library’s archivist, Dr. Kenneth O’Malley, C.P. , and their work has been made into a national and award-winning documentary film. .
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6

Muse, Wilson B., and Robert A. Bender. "The Amino-Terminal 100 Residues of the Nitrogen Assimilation Control Protein (NAC) Encode All Known Properties of NAC from Klebsiella aerogenes and Escherichia coli." Journal of Bacteriology 181, no. 3 (February 1, 1999): 934–40. http://dx.doi.org/10.1128/jb.181.3.934-940.1999.

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ABSTRACT The nitrogen assimilation control protein (NAC) fromKlebsiella aerogenes or Escherichia coli(NACK or NACE, respectively) is a transcriptional regulator that is both necessary and sufficient to activate transcription of the histidine utilization (hut) operon and to repress transcription of the glutamate dehydrogenase (gdh) operon in K. aerogenes. Truncated NAC polypeptides, generated by the introduction of stop codons within thenac open reading frame, were tested for the ability to activate hut and repress gdh in vivo. Most of the NACK and NACE fragments with 100 or more amino acids (wild-type NACK and NACE both have 305 amino acids) were functional in activating hut and repressing gdh expression in vivo. Full-length NACK and NACE were isolated as chimeric proteins with the maltose-binding protein (MBP). NACK and NACE released from such chimeras were able to activatehut transcription in a purified system in vitro, as were NACK129 and NACE100 (a NACKfragment of 129 amino acids and a NACE fragment of 100 amino acids) released from comparable chimeras. A set of NACE and NACK fragments carrying nickel-binding histidine tags (his6) at their C termini were also generated. All such constructs derived from NACE were insoluble, as was NACE itself. Of the his6-tagged constructs derived from NACK, NACK100 was inactive, but NACK120 was active. Several NAC fragments were tested for dimerization. NACK120-his6 and NACK100-his6 were dimers in solution. MBP-NACK and MBP-NACK129 were monomers in solution but dimerized when the MBP was released by cleavage with factor Xa. MBP-NACE was readily cleaved by factor Xa, but the resulting NACE was also degraded by the protease. However, MBP-NACE-his6 was completely resistant to cleavage by factor Xa, suggesting an interaction between the C and N termini of this protein.
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7

Muse, Wilson B., and Robert A. Bender. "The nac (Nitrogen Assimilation Control) Gene from Escherichia coli." Journal of Bacteriology 180, no. 5 (March 1, 1998): 1166–73. http://dx.doi.org/10.1128/jb.180.5.1166-1173.1998.

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ABSTRACT The nitrogen assimilation control gene, nac, was detected in Escherichia coli but not in Salmonella typhimurium by Southern blotting, using a probe from theKlebsiella aerogenes nac (nacK ) gene. The E. coli nac gene (nacE ) was isolated from a cosmid clone by complementation of anac mutation in K. aerogenes. nacE was fully functional in this complementation assay. DNA sequence analysis showed considerable divergence betweennacE and nacK , with a predicted amino acid sequence identity of only 79% and most of the divergence in the C-terminal half of the protein sequence. The total predicted size of NACE is 305 amino acids, the same as for NACK. A null mutation, nac-28, was generated by reverse genetics. Mutants bearing nac-28 have a variety of phenotypes related to nitrogen metabolism, including slower growth on cytosine, faster growth on arginine, and suppression of the failure of an Ntr-constitutive mutant to grow with serine as sole nitrogen source. In addition to a loss of nitrogen regulation of histidase formation,nac-28 mutants also showed a loss of a weak repression of glutamate dehydrogenase formation. This repression was unexpected because it is balanced by a NAC-independent activation of glutamate dehydrogenase formation during nitrogen-limited growth. Attempts to purify NACE by using methods established for NACK failed, and NACE appears to be degraded with a half-life at 30°C as short as 15 min during inhibition of protein synthesis.
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8

Blagojević, Srđan, Srđan Starčević, and Mihailo Zogović. "Nauke odbrane ili vojne nauke - pola veka bez odgovora." Vojno delo 71, no. 7 (2019): 178–88. http://dx.doi.org/10.5937/vojdelo1907178b.

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9

Baladier-Bloch, Isabelle. "��Nackt�!��." Sigila N�35, no. 1 (2015): 85. http://dx.doi.org/10.3917/sigila.035.0085.

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10

Scherer, Otto J. "Nackte Phosphorliganden." Chemie in unserer Zeit 34, no. 6 (December 2000): 374–81. http://dx.doi.org/10.1002/1521-3781(200012)34:6<374::aid-ciuz374>3.0.co;2-n.

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11

Krstić, Snežana, Zorica Anđelić, and Milan Mihajlović. "Ekonomske politike u razvoju ekonomske nauke." Oditor - casopis za Menadzment, finansije i pravo, no. 12 (2015): 4–12. http://dx.doi.org/10.5937/oditor1512004k.

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12

Sass, Hartmut von. "Das nackte Denken." Theologische Rundschau 79, no. 3 (2014): 387. http://dx.doi.org/10.1628/004056914x684193.

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13

Goodstein, D. "Obman v nauke." Uspekhi Fizicheskih Nauk 163, no. 1 (1993): 93. http://dx.doi.org/10.3367/ufnr.0163.199301d.0093.

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14

Andreassen, Kurt. "Nakke-arm-smerter." Tidsskrift for Den norske legeforening 131, no. 5 (2011): 441. http://dx.doi.org/10.4045/tidsskr.11.0038.

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15

Tang, Zhiyong, Nicholas A. Kotov, Sergei Magonov, and Birol Ozturk. "Nanostructured artificial nacre." Nature Materials 2, no. 6 (May 25, 2003): 413–18. http://dx.doi.org/10.1038/nmat906.

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16

Kotov, Nicholas. "Authentic synthetic nacre." National Science Review 4, no. 3 (April 8, 2017): 284–85. http://dx.doi.org/10.1093/nsr/nwx023.

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17

Köhler, Myrta. "Das nackte Überleben." hautnah dermatologie 36, no. 2 (March 2020): 74. http://dx.doi.org/10.1007/s15012-020-4008-2.

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18

Cornella, Alfons. "Nace Infonomia.com." El Profesional de la Informacion 9, no. 10 (October 1, 2000): 16–19. http://dx.doi.org/10.1076/epri.9.10.16.6812.

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19

Kakisawa, Hideki, and Taro Sumitomo. "The toughening mechanism of nacre and structural materials inspired by nacre." Science and Technology of Advanced Materials 12, no. 6 (December 2011): 064710. http://dx.doi.org/10.1088/1468-6996/12/6/064710.

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20

Metzler, Rebecca A., Joshua A. Jones, Anthony J. D'Addario, and Enrique J. Galvez. "Polarimetry of Pinctada fucata nacre indicates myostracal layer interrupts nacre structure." Royal Society Open Science 4, no. 2 (February 2017): 160893. http://dx.doi.org/10.1098/rsos.160893.

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The inner layer of many bivalve and gastropod molluscs consists of iridescent nacre, a material that is structured like a brick wall with bricks consisting of crystalline aragonite and mortar of organic molecules. Myostracal layers formed during shell growth at the point of muscle attachment to the shell can be found interspersed within the nacre structure. Little has been done to examine the effect the myostracal layer has on subsequent nacre structure. Here we present data on the structure of the myostracal and nacre layers from a bivalve mollusc, Pinctada fucata . Scanning electron microscope imaging shows the myostracal layer consists of regular crystalline blocks. The nacre before the layer consists of tablets approximately 400 nm thick, while after the myostracal layer the tablets are approximately 500 nm thick. A new technique, imaging polarimetry, indicates that the aragonite crystals within the nacre following the myostracal layer have greater orientation uniformity than before the myostracal layer. The results presented here suggest a possible interaction between the myostracal layer and subsequent shell growth.
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21

Checa, Antonio G., Joaquín Ramírez-Rico, Alicia González-Segura, and Antonio Sánchez-Navas. "Nacre and false nacre (foliated aragonite) in extant monoplacophorans (=Tryblidiida: Mollusca)." Naturwissenschaften 96, no. 1 (October 9, 2008): 111–22. http://dx.doi.org/10.1007/s00114-008-0461-1.

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22

Berland, S., O. Delattre, S. Borzeix, Y. Catonné, and E. Lopez. "Nacre/bone interface changes in durable nacre endosseous implants in sheep." Biomaterials 26, no. 15 (May 2005): 2767–73. http://dx.doi.org/10.1016/j.biomaterials.2004.07.019.

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23

Kobayashi, Sengo, Michiko Ui, Hayato Araikawa, Tatsuaki Sakamoto, and Kiyomichi Nakai. "Effect of Heat Treatments of Bioactive Nacre on HAp Formation in SBF." Materials Science Forum 706-709 (January 2012): 526–31. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.526.

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Formation of hydroxyapatite (HAp) in simulated body fluid (SBF) on heated nacre has been examined. Nacre is known as composite layer of aragonite platelets and organic materials. Nacre was obtained from the shell of Akoya pearl oyster after removing its prismatic layer. The nacre was heated up to 300°C in air and then soaked in SBF. Nacre heated at 300°C lost iridescent color and became brittle, implying that organic materials which plays a role as glue between aragonite platelets mostly disappeared by heating at 300°C. Formation of HAp particles on nacre in SBF was easier than that on pure Ti. Maximum formation rate of HAp particles was obtained on the nacre heated at 200°C. The amount of HAp particles formed on the nacre heated at 300°C is the smallest. The organic materials in nacre play a critical role for HAp formation on nacre in SBF.
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24

Paiz Varela, Rocael. "¿El hombre nace bueno o nace malo? Distintas concepciones." Revista Guatemalteca de Cultura 1, no. 1 (June 30, 2021): 28–36. http://dx.doi.org/10.46954/revistaguatecultura.v1i1.3.

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Afirmar que el hombre desde su concepción es bueno no es incorrecto ni supone estar equivocado. Tampoco sostener que el hombre nace malo representa una negación de la realidad. Sin embargo, distintas corrientes de pensamiento han vivido en una confrontación por muchos años y se debaten entre lo bueno y lo malo que el hombre es en la naturaleza y, especialmente en la vida. Si el hombre nace bueno ¿por qué se encuentra incitado al mal? Y, si el hombre nace malo ¿por qué no puede redimirse y hacer el bien? Distintos filósofos y pensadores como Rousseau, Hobbes, Maquiavelo y Freud, así como otros, defienden variadas posturas y adoptan posiciones al respecto. ¿Nace el hombre bueno o nace malo? He aquí la importancia medular de este artículo que presenta un tema controversial en la historia del quehacer de la filosofía.
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25

Lopez, Evelyne, Christian Milet, Meriem Lamghari, Lucila Pereira Mouries, Sandrine Borzeix, and Sophie Berland. "The Dualism of Nacre." Key Engineering Materials 254-256 (December 2003): 733–36. http://dx.doi.org/10.4028/www.scientific.net/kem.254-256.733.

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26

Dumont, François. "La maison de nacre." Po&sie 156, no. 2 (2016): 139. http://dx.doi.org/10.3917/poesi.156.0139.

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27

Checa, Antonio G., Julyan H. E. Cartwright, and Marc-Georg Willinger. "Mineral bridges in nacre." Journal of Structural Biology 176, no. 3 (December 2011): 330–39. http://dx.doi.org/10.1016/j.jsb.2011.09.011.

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28

Bartetzko, Dieter. "Die Faust im Nacken." Figurationen 3, no. 2 (December 2002): 33–57. http://dx.doi.org/10.7788/figurationen.2002.3.2.33.

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29

Bourrat, Xavier, Loic Francke, Evelyne Lopez, Marthe Rousseau, Philippe Stempflé, Martine Angellier, and Patrick Albéric. "Nacre biocrystal thermal behaviour." CrystEngComm 9, no. 12 (2007): 1205. http://dx.doi.org/10.1039/b709388h.

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30

Frota, J. "NACRE novel aircraft concepts." Aeronautical Journal 114, no. 1156 (June 2010): 399–404. http://dx.doi.org/10.1017/s0001924000003869.

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Abstract Commercial transport aircraft developed today are defined to balance all requirements foreseen for the short or medium term. Best engineering knowledge as much as minimum business risks consistently lead to the so-called ‘classic’ aircraft configuration. This balanced approach is efficient but can also inhibit innovative practices. Ensuring a sustainable growth in the aviation sector may require radical changes in the way we design and operate aircraft. Started in April 2005, NACRE is a four-year European research and technology integrated project, partly funded by the European Community under the Sixth Framework Programme, which aims at integrating and validating technologies that will enable the potential of new aircraft concepts to be assessed. In order to explore the most relevant capabilities and meet the widest range of challenges, the NACRE R&amp;T project has identified a set of concepts tailored to address specific subsets of design drivers: • The Pro-Green aircraft concepts putting a major emphasis on the reduction of environmental impact of air travel; • The Passenger-driven Aircraft concepts aiming at optimised payload and appreciable quality of future aircraft for the end users; • The Simple Flying Bus, which puts the biggest emphasis on low manufacturing costs and minimum cost of ownership. Irrespective of what final future product configurations might ever look like, the NACRE aircraft concepts act as basic vectors, encompassing all the expected capability developments. The general project objectives are thus to use these concepts in order to: • Explore alternative routes for the major aircraft components (fuselage, wing, engine integration) better suited to their specific targets and which would have been rejected in a balanced approach; • Provide better answers to the full range of requirements by developing and, in some cases, validating the associated envelope of innovative component designs and associated technologies. NACRE is by essence a focused multidisciplinary approach. It does not concentrate on one specific aircraft concept, but it is aimed at developing solutions at a generic aircraft component level, which will enable the results to be applicable for a range of new aircraft concepts. For each of the major aircraft components, the multidisciplinary investigations will require an exploration of the different associated aspects of aerodynamics, materials, structure, engines and systems with the goal of setting the standards in future aircraft design, thus ensuring improved quality and affordability, whilst meeting the strengthening environmental constraints (emissions and noise), with a vision towards improving significantly the global efficiency of the air transport system.
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31

Katti, Kalpana S., Bedabibhas Mohanty, and Dinesh R. Katti. "Nanomechanical properties of nacre." Journal of Materials Research 21, no. 5 (May 1, 2006): 1237–42. http://dx.doi.org/10.1557/jmr.2006.0147.

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Nacre, the inner iridescent layer of seashells is a model biomimetic system composed of 95% of inorganic (aragonite) phase and 5% of organic phase. Nacre exhibits an interlocked layered “brick and mortar” structure where the bricks are made up of aragonitic calcium carbonate and mortar is an organic phase. Here, we report the role of indentation load and penetration depth on measurement of nanomechanical properties of nacre. A range of loads from 10 μN to 10,000 μN were applied to obtain the response from different depths of nacre. The values of hardness and elastic modulus decrease with increasing load (i.e., increase in penetration depth). The variation in these values is significant at lower loads and decreases with increase in indentation load. From our results, it appears that the nanoindentation tests done at lower loads are highly influenced by micro and nanostructure in nacre. The indentation experiments performed at low loads indicate an elastic modulus of about 15 GPa for the organic phase. The low load, low penetration experiments appear to be better indicators of nanomechanical behavior. Also, we have observed a step-like behavior in the load-displacement curves at high load indentations on nacre. These features are attributed to the organic layer between the aragonite platelets. The indentation tests with penetration depths more than ∼250-300 nm often disrupt the organic layer and the behavior is not recovered in the unloading part of the curve. The microarchitecture and the composition of nacre contribute to the decrease in hardness values with increasing depth along with the indentation size effects.
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32

Lavine, Marc S. "Nacre-inspired toughened glass." Science 364, no. 6447 (June 27, 2019): 1247.7–1248. http://dx.doi.org/10.1126/science.364.6447.1247-g.

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33

Peng, Jingsong, and Qunfeng Cheng. "Smart Nacre-inspired Nanocomposites." ChemPhysChem 19, no. 16 (April 19, 2018): 1980–86. http://dx.doi.org/10.1002/cphc.201701390.

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34

Maelicke, Alfred. "Nackte DNA als Impfstoff?" Nachrichten aus Chemie, Technik und Laboratorium 41, no. 5 (May 1993): 578–80. http://dx.doi.org/10.1002/nadc.19930410510.

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35

Gerasimov, G. A. "O nauke vtoroy svezhesti." Clinical and experimental thyroidology 6, no. 2 (June 15, 2010): 11. http://dx.doi.org/10.14341/ket20106211-12.

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36

Goedeckemeyer, Karl-Heinz. "Die Rezession im Nacken." Bankmagazin 58, no. 7-8 (July 2009): 20–21. http://dx.doi.org/10.1007/bf03254686.

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37

Wang, R. Z., Z. Suo, A. G. Evans, N. Yao, and I. A. Aksay. "Deformation mechanisms in nacre." Journal of Materials Research 16, no. 9 (September 2001): 2485–93. http://dx.doi.org/10.1557/jmr.2001.0340.

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Nacre (mother-of-pearl) from mollusc shells is a biologically formed lamellar ceramic. The inelastic deformation of this material has been experimentally examined, with a focus on understanding the underlying mechanisms. Slip along the lamellae tablet interface has been ascertained by testing in compression with the boundaries oriented at 45° to the loading axis. The steady-state shear resistance τss has been determined and inelastic strain shown to be as high as 8%. The inelastic deformation was realized by massive interlamellae shearing. Testing in tension parallel to the tablets indicates inelastic strain of about 1%, occurring at a steady-state stress, σsss ≈ 110 MPa. The strain was associated with the formation of multiple dilatation bands at the intertablet boundaries accompanied by interlamellae sliding. Nano-asperities on the aragonite tablets and their interposing topology provide the resistance to interfacial sliding and establish the level of the stress needed to attain the inelastic strain. Detailed mechanisms and their significance for the design of robust ceramics are discussed.
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38

Lavine, Marc S. "Recyclable nacre-like composites." Science 371, no. 6536 (March 25, 2021): 1329.1–1329. http://dx.doi.org/10.1126/science.371.6536.1329-a.

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39

von Randow, Clara Adele, and Günther Thiele. "Nackte Elektronen mit Potenzial." Nachrichten aus der Chemie 69, no. 6 (June 2021): 60–63. http://dx.doi.org/10.1002/nadc.20214110509.

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40

Meghem, Maxim. "Lithuania’s representation as “Another Russia” in pre-revolutionary historiography." OOO "Zhurnal "Voprosy Istorii" 2020, no. 06 (June 1, 2020): 277–88. http://dx.doi.org/10.31166/voprosyistorii202006statyi28.

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41

Halilović, Tehran. "The development of the science of the soul in the philosophy of Ibn Sina." Kom : casopis za religijske nauke 2, no. 1 (2013): 59–76. http://dx.doi.org/10.5937/kom1301059h.

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42

Bondžić, Dragomir. "Development of science in Yugoslavia after the Second World War." Kultura, no. 161 (2018): 201–20. http://dx.doi.org/10.5937/kultura1861201b.

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43

Wang, Xue Feng, Zhi Ming Liu, and Wen Jian Wu. "Progress of Molluscan Nacre Proteins Research." Advanced Materials Research 998-999 (July 2014): 283–86. http://dx.doi.org/10.4028/www.scientific.net/amr.998-999.283.

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Nacre composing the inner layer of mollusk shell is a typical product of biomineralization. While main components of the organics in nacre are proteins, which mediate its distinctive lamellate structure. Although kinds of nacre proteins have been reported, the whole process of nacre formation is still unclear—especially on molecular level. In this paper, homology, structure, classification and mineralization characters of nacre proteins are elaborated and summarized.
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44

Mohanty, Bedabibhas, Kalpana S. Katti, Dinesh R. Katti, and Devendra Verma. "Dynamic nanomechanical response of nacre." Journal of Materials Research 21, no. 8 (August 1, 2006): 2045–51. http://dx.doi.org/10.1557/jmr.2006.0247.

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Nacre, the shiny inner layer of mollusk shells is a model biomimetic nanocomposite system. Its exceptional mechanical properties have been the inspiration for materials scientists for several decades. Nacre exhibits a layered brick and mortar structure. It is composed of 95% inorganic (aragonitic CaCO3) phase and 5% organic (mainly proteins and polysaccharides) phase that are arranged in interlocked brick and mortar architecture with the mineral as bricks and organics as the mortar. In the current work, we describe the dynamic nanomechanical behavior of nacre using dynamic nanoindentation (nano-DMA) experiments. Two sets of loads were applied to obtain the dynamic response from varying depths in nacre. These tests were performed at three different frequencies (25, 50, and 100 Hz) to study the effect of frequency on the dynamic properties of nacre. The loss modulus (E″) and the loss factor (tan δ) were measured. Both of these parameters were observed to increase with increase in depth. Significant increase in tan δ was observed with the increase in frequency. Photoacoustic Fourier transform infrared spectroscopic studies on nacre indicate the presence of water in nacre. This water may be present at nanograin interfaces in nacre platelets, at organic–inorganic interfaces, and also in the organic phase in nacre. We believe that water is one of the significant contributors to the viscoelasticity of nacre. Our results indicate that the aragonite platelets in nacre may also contribute to viscoelasticity.
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45

Crespo Graciano, Raquel. "Mientras él nace." Index de Enfermería 21, no. 3 (September 2012): 174–75. http://dx.doi.org/10.4321/s1132-12962012000200015.

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46

Raj, Mayank, Sandeep P. Patil, and Bernd Markert. "Mechanical Properties of Nacre-Like Composites: A Bottom-Up Approach." Journal of Composites Science 4, no. 2 (April 7, 2020): 35. http://dx.doi.org/10.3390/jcs4020035.

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Nacre is a highly organized hierarchical structure of the mineral and organic components at all scales down to the molecular-scale guided by organic molecules. The mechanical properties of the mineral component of nacre have been studied and well established for decades. In the present work, the shear modulus of the organic matrix of nacre was obtained using two of its important proteineous components, Perlucin and Lustrin A. The shear modulus value of the organic matrix was computed to be in the range of 1.25–1.45 GPa using atomistic molecular dynamics (MD) simulations. Moreover, finite element (FE) simulations were conducted on the three-dimensional (3D) models of the nacre-like composite while varying the relative composition of mineral and organic constituents. The nacre-like composite models with 10–20% by volume of organic part estimated high toughness. The exact optimum value will depend on the mechanical properties of the organic matrix used in the synthesis of nacre-like material. The study is an advancement in the modeling of nacre, sheds light on macroscale properties of nacre-like composites, and opens up new avenues for continuum studies of nacre mechanics, including its mysterious toughening mechanism.
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47

Kalesaran, Ockstan Jurike, and Cyska Lumenta. "Analisis Scanning Electron Microscopy pada Nacre Sinanodonta (Anodonta) woodiana (Lea, 1834)." Journal of Aquaculture and Fish Health 10, no. 1 (January 13, 2021): 75. http://dx.doi.org/10.20473/jafh.v10i1.19567.

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Chinese pond shell, Sinanodonta (Anodonta) woodiana (Lea, 1834), is a freshwater bivalve that has essential ecological and economic functions. The microstructure of the nacre is of great interest and is the main attraction for the development of pearl farming. This study aims to describe the microstructure and composition of biomineral elements of the nacre at several shell sizes of S. woodiana. The shell is cut with a small forcepon the ventral margin with a size of 3-5 mm for Scanning Electron Microscpy (SEM). SEM images display that a shell layer consists of periostracum, prismatic and nacre layers. The surface of the nacre layer is an irregular or labyrinth patterned. The nacre tablets are hexagonal, glued to each other, so the nacre tablets become polygonal. Moreover, the microstructure of the nacre tablets is like a brick wall, and the thickness of tablets from 0.43 μm to 0.59 μm. The composition of the biomineral elements are C, O, Ca, and the mineralization mechanism is under the control of aquatic environmental factors that help the process of microstructure formation in nacre.
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48

Hayashi, Akiko, Toshihiro Nakamura, and Tomoaki Watanabe. "Fabrication of a Nacre-Like Aragonite/PAA Multilayer Film on a Nacre Substrate." Crystal Growth & Design 10, no. 12 (December 2010): 5085–91. http://dx.doi.org/10.1021/cg100709m.

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49

Stancic, Visnja, and Misa Stojadinovic. "ODNOS NAUKE I DEMOKRATIJE: VIĐENjE POLA FAJERABENDA." Nacionalni interes 39, no. 3/2020 (February 15, 2021): 231–44. http://dx.doi.org/10.22182/ni.3932020.10.

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Razvoj nauke i tehnike predstavlja jednu od ključnih karakteristika modernog doba, pa se danas naučni stil mišljenja smatra superiornom formom ljudske duhovnosti. Pored emancipatorskog potencijala, nauka, međutim, sadrži i negativnu dimenziju – u vidu potencijalno pogubnih efekata naučnih rezultata, pa je potrebno preispitati sam smisao, domašaj i položaj nauke u savremenim demokratskim društvima. U tom smislu, autori u ovom radu najpre analiziraju tradicionalno shvatanje nauke, a zatim i pristup koji se u okviru savremene teorije nauke i epistemologije naziva novom slikom nauke. Ovakav pristup predstavljen je kroz Fajerabendovo viđenje nauke i njenog položaja i moći u demokratskom društvu. Fajerabendova pozicija karakteriše se kao epistemološki anarhizam, odnosno teorijski i metodološki pluralizam. Autori nadalje razmatraju etičke i političke implikacije suprotstavljenih teorijskih pozicija monizma i pluralizma. U svetlu pomenutih razmatranja, cilj autora je da ukažu na određene nedostatke i slabosti tradicionalnog shvatanja nauke. U radu su korišćene sledeće metode: interpretativna metoda, kritička i evaluativna metoda, metoda pojmovne i normativne analize.
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50

Dolinko, Vasiliy. "Historical and psychological analysis of criminal personality typologies in Russian science." OOO "Zhurnal "Voprosy Istorii" 2019, no. 12 (December 1, 2019): 19–26. http://dx.doi.org/10.31166/voprosyistorii201912statyi23.

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