Auswahl der wissenschaftlichen Literatur zum Thema „2015 j-897“

В работе методами растровой электронной микроскопии и ультрамягкойрентгеновской эмиссионной спектроскопии были проведены исследования особенностейформирования многослойных структур пористого кремния и установлено влияние изменения плотности тока при электрохимическом травлении монокристаллических пластин кремния на фазовый состав поверхностных слоев сформированной пористой структуры. ЛИТЕРАТУРА1. Moshnikov V., Gracheva I., Lenshin A., Spivak Yu. Porous silicon with embedded metal oxides for gassensing applications // Journal of Non-Crystalline Solids, 2012 v. 358(3), pp. 590–595. DOI: https://doi.org/10.1016/j.jnoncrysol.2011.10.0172. Pacholski C. Photonic crystal sensors based on porous silicon // Sensors, 2013, v. 13(4), pp. 4694–4713.DOI: https://doi.org/10.3390/s1304046943. Harraz F. Porous silicon chemical sensors and biosensors: A review // Sensors and Actuators B, 2014,v. 202, pp. 897–912. DOI: https://doi.org/10.1016/j.snb.2014.06.0484. Jane A., Dronov R., Hodges A., Voelcker N. Porous silicon biosensors on the Advance // Trends in Biotechnology, 2009, v. 27(4), pp. 230–239. DOI: https://doi.org/10.1016/j.tibtech.2008.12.0045. RoyChaudhuri C. A review on porous silicon based electrochemical biosensors: beyond surface areaenhancement factor // Sensors and Actuators B: Chemical, 2015, v. 10, pp. 310–323. DOI: http://dx.doi.org/10.1016/j.snb.2014.12.0896. Canham L. Properties of porous silicon. Ed. by Canham L., Malvern: DERA, 1997, 400 p.7. Lenshin A., Kashkarov V., Spivak Yu., Moshnikov V. Investigations of nanoreactors on the basisof p-type porous silicon: Electron structure and phase composition // Materials Chemistry and Physics, 2012,v. 135(2–3), pp. 293–297. DOI: https://doi.org/10.1016/j.matchemphys.2012.03.0958. Lenshin A., Kashkarov V., Turishchev S., Smirnov M., Domashevskaya E. Effect of natural aging onphotoluminescence of porous silicon // Technical Physics Letters, 2011, v. 37(9), pp. 789-792. DOI: https://doi.org/10.1134/s10637850110901249. Seredin P., Lenshin A., Goloshchapov D., Lukin A., Arsentyev I., Bondarev A., Tarasov I. Investigationsof nanodimensional Al2O3 fi lms deposited by ion-plasma sputtering onto porous silicon // Semiconductors,2015, v. 49(7), pp. 915–920. DOI: https://doi.org/10.1134/s106378261507021010. Qian M., Bao X.Q., Wang L.W., Lu X., Shao J., Chen X.S. Structural tailoring of multilayer poroussilicon for photonic crystal application. // Journal of Crystal Growth, 2006, v. 292(9), pp. 347–350. DOI:https://doi.org/10.1016/j.jcrysgro.2006.04.03311. Verma D., Khan F., Singh S. Correlation between refl ectivity and photoluminescent properties ofporous silicon fi lms // Solar Energy Materials & Solar Cells, 2011, v. 95(1), pp. 30–33. DOI: https://doi.org/10.1016/j.solmat.2010.05.03012. Theiß W. The dielectric function of porous silicon – how to obtain it and how to use it // ThinSolid fi lms, 1996, v. 276 (1–2), pp. 7–12. DOI: https://doi.org/10.1016/0040-6090(95)08036-813. Caballero-Hernandez J., Godinho V., Lacroix B., Haro M., Jamon D., Fernandez A. Fabrication of opticalmultilayer devices from porous silicon coatings with closed porosity by magnetron sputtering // ACS Appl.Mater. Interfaces, 2015, v. 7(25), pp. 13889–13897. DOI: https://doi.org/10.1021/acsami.5b0235614. Terekhov V, Kashkarov V, Manukovskii E., Schukarev A., Domashevskaya E. Determination of thephase composition of surface layers of porous silicon by ultrasoft X-ray spectroscopy and X-ray photoelectronspectroscopy techniques // J. Electron. Spectrosc., 2001, v. 114–116, pp. 895–900. DOI: https://doi.org/10.1016/s0368-2048(00)00393-515. Shulakov A. X-ray emission depth-resolved spectroscopy for investigation of nanolayers. // Journalof Structural Chemistry, Supplement, 2011, v. 52(S1), pp. 1–12. DOI: https://doi.org/10.1134/s002247661107001816. Mashin A., Khokhlov A., Mashin N., Domashevskaya E., Terekhov V. X-ray spectroscopic studyof electronic structure of amorphous silicon and silicyne // Semiconductors, 2001, v. 35(8), pp. 956–961.DOI: https://doi.org/10.1134/1.139303517. Domashevskaya E., Kashkarov V., Manukovskii E., Shchukarev A., Terekhov V. XPS, USXS and PLSinvestigations of porous silicon // J. Electron. Spectrosc., 1998, v. 88–91, pp. 969–972. DOI: https://doi.org/10.1016/s0368-2048(97)00274-018. Lenshin A., Kashkarov V., Domashevskaya E., Bel’tyukov A., Gil’mutdinov F. Investigations of thecomposition of macro-, micro- and nanoporous silicon surface by ultrasoft X-ray spectroscopy and X-rayphotoelectron spectroscopy // Applied Surface Science, 2015, 359, pp. 550–559. DOI: https://doi.org/10.1016/j.apsusc.2015.10.14019. Suriani Yaakob, Mohamad Abu Bakar, Jamil Ismail, Noor Hana Hanif Abu Bakar, KamarulaziziIbrahim. The formation and morphology of highly doped N-type porous silicon: effect of short etchingtime at high current density and evidence of simultaneous chemical and electrochemical dissolutions //Journal of Physical Science, 2012, v. 23(2), pp. 17–31. Available at: http://jps.usm.my/wp-content/uploads/2014/10/23.2.2.pdf (accessed 11.11.2019)

Company’s financial health is one of the important factors that must be maintained by the company to maintain the sustainability of its business. The objective of the study is to examine the effect of financial performance and corporate governance on financial health. Financial performance is reflected by three indeps: leverage, liquidity, and profitability. While corporate governance is reflected by managerial ownership, institutional ownership, the proportion of independent commissioners, and the size of audit committee. This study used financial report of listed manufacturing companies in Indonesia Stock Exchange (IDX) during 2013-2017. The data was collected by purposive sampling. This study used logistic regression analysis to examine seven of independent variables on financial health. The result indicate leverage and institutional ownership were significant and negatively affected the company’s financial health. While liquidity and profitability were significant and positively affected the company’s financial health. Almilia, L. S., dan Kristijadi. 2003. Analisis Rasio Keuangan untuk Memprediksi Kondisi Financial Distress Perusahaan Manufaktur yang terdaftar di Bursa Efek Jakarta. JAAI, 7(2), 183–210. Bodroastuti, T. 2009. Pengaruh Struktur Corporate Governance terhadap Financial Distress. Retrieved from Pengaruh Corporate Governance Structure dan Management Agency Cost terhadap Financial Distress Cinantya, I., dan Merkusiwati, N. 2015. Pengaruh Corporate Governance , Financial Indicators , dan Ukuran Perusahaan pada Financial Distress. E, 10.3, 897–915. Diakses dari: https://ojs.unud.ac.id/index.php/Akuntansi/article/view/10418 Dewi, N. K. U. G., & Dana, M. 2017. Variabel Penentu Financial Distress pada Perusahaan Manufaktur di Bursa Efek Indonesia. E-Jurnal Manajemen Unud, 6(11), 5834–5858. Gottardo P., Moisello A.M. 2019. Family Influence, Leverage and Probability of Financial Distress. In: Capital Structure, Earnings Management, and Risk of Financial Distress. SpringerBriefs in Bussiness. Springer, Cham Gunawijaya, I. N. A. 2015. Pengaruh Karakteristik Komite Audit, Independensi Dewan Komisaris, Reputasi Auditor terhadap Financial Distress. Jurnal Akuntansi Bisnis, XIV(27), 111–130. Hanafi, J., & Breliastiti, R. 2016. Peran Mekanisme Good Corporate Governance dalam Mencegah Perusahaan Mengalami Financial Distress. Jurnal Online Insan Akuntan, 1(1), 195–220. Hanifah, O. E., & Purwanto, A. 2013. Pengaruh Struktur Corporate Governance dan Financial Indicators terhadap Kondisi Financial. Diponegoro Journal of Accounting, 2(2), 1–15. Haq, A. Q., Rikumahu, B., dan Firli, A. 2016. Pengaruh Karakteristik Praktik Corporate Governance terhadap Prediksi Financial Distress. Jurnal Profit, 3(1), 9–20. Harmawan, D. 2013. Pengaruh Karakteristik Komite Audit, Ukuran Dewan, dan Struktur Kepemilikan Terhadap Financial Distress. Helena, S., & Saifi, M. 2018. Pengaruh Corporate Governance terhadap Financial Distress ( Studi pada Perusahaan Transportasi yang terdaftar di Bursa Efek Indonesia Periode 2013-2016 ). Jurnal Administrasi Bisnis, 60(2), 143–152. Herdinata, C. 2016. Mekanisme Kontrol dan Konflik Keagenan. Diakses dari: http://repository.wima.ac.id/5363/1/ Jantadej, P. 2006. Using the Combinations of Cash Flow Components to Predict Financial Distress. Diakses dari: https://search.proquest.com/docview/305290668 Jumianti, R., Rambe, P. A., dan Ratih, A. E. 2015. Pengaruh Mekanisme Corporate Governance dan Kinerja Keuangan terhadap Financial Distress pada Perusahaan Manufaktur yang Terdaftar di BEI Periode 2011-2014. Mafiroh, A., dan Triyono. 2016. Pengaruh Kinerja Keuangan dan Mekanisme Corporate Governance terhadap Financial Distress ( Studi Empiris pada Perusahaan Manufaktur yang Terdaftar di Bursa Efek Indonesia Periode 2011-2014. Riset Akuntansi Dan Keuangan Indonesia 1(1): 46–53. Mashady, D., dan Husaini, A. 2014. Pengaruh Working Capital Turnover (WCT), Current Ratio (CR), dan Debt to Total Assets (DTA) Terhadap Return on Investment (ROI). Jurnal Administrasi Bisnis, 7(1): 1-10. Maulida, I. S., Moehaditoyo, S. H., dan Nugroho, M. 2018. Analisis Rasio Keuangan untuk Memprediksi Financial Distress pada Perusahaan Manufaktur yang Terdaftar di Bursa Efek Indonesia 2014-2016. JIABI, 2(1), 179–193. Munawir. 2001. Analisis Laporan Keuangan, Yogyakarta: Liberty. Murhadi, W. 2013. Analisis Laporan Keuangan: Proyeksi dan Valuasi Saham. Jakarta: Salemba Empat. Noor, H. 2009. Pengelolaan Keuangan Bisnis dan Pengembangan Ekonomi Masyarakat. Jakarta: Indeks. Platt, H., dan Platt, M. 2002. Predicting Corporate Financial Distress : Reflections on Choice-Based Sample Bias. Journal of Economic and Finance, 26(2). Pratiwi, et al. 2015. Analisis Mekanisme Good Corporate Governance terhadap Manajemen Laba pada Perusahaan Manufaktur yang terdaftar di BEI. Jurnal Riset Mahasiswa Akuntansi, 1–15. Rahmawati, T. 2016. Pengaruh Kapasitas Operasi, Pertumbuhan Penjualan, Komisaris Independen, dan Kepemilikan Publik terhadap Financial Distress. Jurnal Ilmu Manajemen Dan Akuntansi Terapan, 7(2), 132–145. Revina, Januarsi, Y., dan Muhtar. 2014. Mekanisme Internal dan Eksternal Corporate Governance dalam Memitigasi Financial Distress pad Industri Transportasi di Indonesia, 1–21. Rustam, B.2018. Manajemen Risiko: Prinsip, Penerapan, dan Penelitian. Jakarta: Salemba Empat. Sameera, T.K.G., Senaratne, S. 2015. Impact of Corporate Governance Practices on Probability and Resolution of Financial Distress of Listed Companies in Sri Lanka. Insight for Suistainable Development in Emerging Economics. Proceedings of the 4th International Conference on Management and Economics-ICME 2015 Santoso, S. I., Fala, D. Y. A. S., dan Khoirin, A. N. N. 2017. Pengaruh Laba , Arus Kas dan Corporate Governance terhadap Financial Distress. Jurnal Al-Buhuts, 1(1), 1–22. Sari, P. 2012. Analisis Pengaruh Rasio Keuangan terhadap Financial Distress pada Perusahaan Property dan Real Estate yang Terdaftar Di Bursa Efek Indonesia Tahun 2011, 43–53. Diakses dari: http://journal.umg.ac.id/index.php/manajerial/article/view/427/373 Sari, N. L. K. M., dan Putri, I. G. A. M. A. D. 2016. Kemampuan Profitabilitas Memoderasi Pengaruh Likuiditas dan Leverage terhadap Financial Distress. E-Jurnal Ekonomi Dan Bisnis Universitas Udayana, 5.10, 3419–3448. Sekaran, U. 2015. Research Methods for Business. Jakarta: Salemba Empat. Setiyowati, N. H. 2016. Analisis Pengaruh Struktur Corporate Governance, Likuiditas, Dan Leverage terhadap Financial Distress pada Sektor Perbankan yang Terdaftar di Bursa Efek Indonesia Tahun 2011-2013. Shahwan, Tamer Mohamed. 2015. The Effect of Corporate Governance on Financial Performance and Financial Distress: Evidence from Egypt. Corporate Governance. The International Journal of Bussiness in Society, 15 (5). Subramanyam, K.,dan Wild, J. 2013. Analisis Laporan Keuangan. Jakarta: Salemba Empat. Surya, I., dan Yustiavandana, I. 2006. Penerapan Good Corporate Governance: Mengesampingkan Hak-Hak Istimewa demi Kelangsungan Usaha. Jakarta: Kencana. Triwahyuningtias, M., dan Muharam, H. 2012. Analisis Pengaruh Struktur Kepemilikan, Ukuran Dewan, Komisaris Independen, Likuiditas dan Leverage terhadap Terjadinya Kondisi Finacial Distress. Diponegoro Journal of Management. Warastuti, Y.,& Sitinjak, E. 2014. Analysis of Model-Based Prediction of Bank Bankruptcy in The Banking Companies Listed in Indonesia Stock Exchange 2008-2012. South East Asia Journal of Contempory Bussiness, Economic and Law, 5(1), 71-81. Widyastuti, L. 2015. Analisis Pengaruh Mekanisme Corporate Governance , Financial Indicators dan Firm Size terhadap Financial Distress pada Perusahaan Manufaktur di BEI Periode Tahun 2010-2014, 1–10. Keputusan Menteri Badan Usaha Milik Negara Nomor KEP-117/M-MBU/2002. Diakses Dari: https://www.google.co.id/url?sa=t&source=web&rct=j&url=http:// Abstrak Kesehatan keuangan perusahaan merupakan salah satu faktor penting yang harus dijaga oleh perusahaan untuk mempertahankan keberlanjutan usahanya. Tujuan dari penelitian ini adalah untuk menganalisis pengaruh dari kinerja keuangan dan tata kelola perusahaan terhadap kondisi kesehatan perusahaan. Kinerja keuangan di cerminkan oleh tiga variabel: leverage, likuiditas, dan profitabilitas. Sedangkan tata kelola perusahaan dicerminkan oleh kepemilikan manajerial, kepemilikan institusional, proporsi dewan komisaris independen, dan ukuran komite audit. Penelitian ini menggunakan laporan keuangan perusahaan manufaktur yang terdaftar di BEI tahun 2013-2017. Data dikumpulkan menggunakan metode purposive sampling. Penelitian ini menggunakan analisis regresi logistik dan hasil penelitian menemukan bahwa leverage dan kepemilikan institusional berpengaruh secara signifikan dan negatif terhadap kondisi kesehatan keuangan perusahaan yang berarti perusahaan dengan leverage dan kepemilikan institusional tinggi cenderung berada pada kondisi financial distress, sedangkan likuiditas dan profitabilitas berpengaruh signifikan dan positif terhadap kondisi kesehatan keuangan perusahaan yang berarti bahwa perusahaan dengan likuiditas dan profitabilitas tinggi akan cenderung pada kondisi finansial sehat.

Even though two-thirds of our world's surface is covered by water, less than 1% of that water can be directly consumed to satisfy the rapid growth in population, urbanization, and industrialization.[1] Water quality and scarcity have become some of the most important global challenges of our time. Current desalination technologies such as multi-stage flash distillation and reverse osmosis can be costly to implement and operate, requiring significant pretreatment and consistent maintenance procedures.[2] Thus, investigations into alternative desalination options are being explored toward building more sustainable water treatment systems. Capacitive deionization (CDI) is a desalination technology using highly porous carbon electrodes that can reversibly adsorb dissolved ions. By regulating applied voltages to a CDI cell, ionized salts are trapped in the electric double layers (EDLs) at carbon electrodes, thereafter desalinating water in the CDI cell.[3] CDI technology may have potential advantages over current desalination methods in that no heat treatment or high pressure is required, potentially leading to a significant decrease in the operational and energy costs compared to current desalination processes and aiding in the production of clean/fresh water. Since 2011, researchers from the University of Kentucky Center for Applied Energy Research (UK CAER) have contributed to ongoing efforts to advance CDI technology from theoretical studies to applied process research.[3-22] Works primarily include the improvement of desalination capacity, mitigation of performance degradation, and technology commercialization. In this talk, one of the presenters will provide key milestones of the CDI technology developed at UK CAER in honor of Prof. D. Noel Buckley for his 50-year experience in electrochemistry research. Ref: [1] M. Elimelech, W.A. Phillip, The future of seawater desalination: energy, technology, and the environment, Science, 333 (6043) (2011), pp. 712-717 [2] J.-J. Yan, S.-F. Shao, J.-H. Wang, J.-P. Liu, Improvement of a multi-stage flash seawater desalination system for cogeneration power plants, Desalination, 217 (1) (2007), pp. 191-202 [3] A. Omosebi, X. Gao, J. Rentschler, J. Landon, K.-K. Liu, Continuous operation of membrane capacitive deionization cells assembled with dissimilar potential of zero charge electrode pairs, J. Colloid Interf. Sci., 446 (2015), pp. 345-351 [4] J. Landon, X. Gao, A. Omosebi, K. Liu, “Local pH Effects on Carbon Oxidation in Capacitive Deionization Architectures” Environmental Science: Water Research & Technology, 7, 861 – 869 (2021) [5] A. Omosebi, Z. Li, N. Holubowitch, X. Gao, J. Landon, A. Cramer, K. Liu, “Energy recovery in capacitive deionization systems with inverted operation characteristics”, Environmental Science: Water Research & Technology, 6, 321-330 (2020) [6] X. Gao, A. Omosebi, Z. Ma, F. Zhu, J. Landon, M. Ghorbanian, N. Kern, K. Liu, “Capacitive Deionization Using Symmetric Carbon Electrode Pairs”, Enviro. Sci.: Water Res. Tech., 5, 660-671 (2019). [7] J. Landon, X. Gao, A. Omosebi, K. Liu, “Progress and outlook for capacitive deionization technology”, Current Opinion in Chemical Engineering, 25, 1-8 (2019) [8] N. Holubowitch, A. Omosebi, X. Gao, J. Landon, K. Liu, “Membrane-Free Electrochemical Deoxygenation of Aqueous Solutions Using Symmetric Activated Carbon Electrodes in Flow-Through Cells”, Electrochim. Acta., 297, 163-172 (2019). [9] X. Gao, A. Omosebi, J. Landon, K. Liu, “Voltage-Based Stabilization of Microporous Carbon Electrodes for Inverted Capacitive Deionization”, J. Phys. Chem. C, 122, 1158-1168 (2018). [10] A. Omosebi, X. Gao, N. Holubowitch, Z. Li, J. Landon, K. Liu, “Anion Exchange Membrane Capacitive Deionization Cells”, J. Electrochem. Soc., 164, E242-E247 (2017). [11] N. Holubowitch, A. Omosebi, X. Gao, J. Landon, K. Liu, “Quasi-Steady-State Polarization Reveals the Interplay of Capacitive fand Faradaic Process in Capacitive Deionization”, ChemElectroChem, 4, 2404-2413 (2017). [12] X. Gao, A. Omosebi, N. Holubowitch, J. Landon, K. Liu, “Capacitive Deionization Using Alternating Polarization: Effect of Surface Charge on Salt Removal”, Electrochim. Acta, 233, 249-255 (2017). [13] X. Gao, A. Omosebi, N. Holubowitch, A. Liu, K. Ruh, J. Landon, K. Liu, “Polymer-Coated Composite Anodes for Efficient and Stable Capacitive Deionization”, Desalination, 399, 16-20 (2016). [14] X. Gao, S. Porada, A. Omosebi, K. Liu, P. M. Biesheuvel, J. Landon, “Complementary Surface Charge for Enhanced Capacitive Deionization”, Water Res., 92, 275-282 (2016). [15] X. Gao, A. Omosebi, J. Landon, K. Liu, “Enhanced Salt Removal in an Inverted Capacitive Deionization Cell Using Amine Modified Microporous Carbon Electrode”, Environ. Sci. Tech., 49, 10920 (2015). [16] X. Gao, A. Omosebi, J. Landon, K. Liu, “Surface Charge Enhanced Carbon Electrodes for Stable and Efficient Capacitive Deionization Using Inverted Adsorption-Desorption Behavior”, Energy Environ. Sci., 8, 897 (2015) [17] X. Gao, A. Omosebi, J. Landon, K. Liu, “Dependence of the Capacitive Deionization Performance of Potential of Zero Charge Shifting of Carbon Xerogel Electrodes during Long-Term Operation”, J. Electrochem. Soc., 161, E159 (2014).

Zhao, L.-X., Qu, H.-T., Fu, Y., Gao, S. and Ye, F. 2015. Alleviation of injury from chlorimuron-ethyl in maize treated with safener 3-dichloroacetyl oxazolidine. Can. J. Plant Sci. 95: 897–903. The protective effects of herbicide safeners, including 3-dichloroacetyl-2,2-dimethyl-1,3-oxazolidine (R-28725), 3-dichloroacetyl-2,2-dimethyl-4-ethyl-1,3-oxazolidine (Racemate), and its two enantiomers (R)-3-dichloroacetyl-2,2-dimethyl-4-ethyl-1,3-oxazolidine (R-enantiomer) and (S)-3-dichloroacetyl-2,2-dimethyl-4-ethyl-1,3-oxazolidine (S-enantiomer), on reducing the phytotoxicity of chlorimuron-ethyl to maize were investigated. Soaking the seeds in safeners increased the endogenous glutathione (GSH) content and glutathione-S-transferase (GST) activity of maize. When induced by R-enantiomer, the GST activity in vivo and in vitro increased 180 and 192% compared with control, respectively. R-28725 and R-enantiomer also increased the acetolactate synthase (ALS) activity inhibited by chlorimuron-ethyl from 45 to 100 and 97% compared with the control, respectively. The kinetic parameter Vmax of GST in the maize treated with R-28725 and R-enantiomer increased by 103 and 92%, respectively, compared with the control. Our results suggest that R-28725 and R-enantiomer could significantly improve the GSH content, GST activity, and ALS activity of maize. Overall, maize could be protected from the injury caused by chlorimuron-ethyl.

A new preconditioning-based parameter-uniform convergence analysis is presented for one-dimensional singularly perturbed convection-diffusion problems discretized by an upwind difference scheme on a Bakhvalov-type mesh. The proof technique utilizes the classical convergence principle: uniform stability and uniform consistency imply uniform convergence, which can only be used after applying an appropriate preconditioner to the discrete operator. References N. S. Bakhvalov. The optimization of methods of solving boundary value problems with a boundary layer. USSR Comput. Math. Math. Phys. 9.4 (1969), pp. 139–166. doi: 10.1016/0041-5553(69)90038-X. I. P. Boglaev. Approximate solution of a non-linear boundary value problem with a small parameter for the highest-order differential. USSR Comput. Math. Math. Phys. 24.6 (1984), pp. 30–35. doi: 10.1016/0041-5553(84)90005-3. T. Linß. Layer-adapted meshes for reaction-convection-diffusion problems. Vol. 1985. Lecture Notes in Mathematics. Springer-Verlag, 2010. doi: 10.1007/978-3-642-05134-0. T. Linß, H.-G. Roos, and R. Vulanović. Uniform pointwise convergence on Shishkin-type meshes for quasi-linear convection-diffusion problems. SIAM J. Numer. Anal. 38.3 (2000), pp. 897–912. doi: 10.1137/S0036142999355957. V. D. Liseikin. Layer resolving grids and transformations for singular perturbation problems. De Gruyter, 2001. doi: 10.1515/9783110941944. T. A. Nhan, M. Stynes, and R. Vulanović. Optimal uniform-convergence results for convection-diffusion problems in one dimension using preconditioning. J. Comput. Appl. Math. 338 (2018), pp. 227–238. doi: 10.1016/j.cam.2018.02.012. T. A. Nhan and R. Vulanović. Analysis of the truncation error and barrier-function technique for a Bakhvalov-type mesh. Electron. Trans. Numer. Anal. 51 (2019), pp. 315–330. doi: 10.1553/etna_vol51s315 T. A. Nhan and R. Vulanović. The Bakhvalov mesh: a complete finite-difference analysis of two-dimensional singularly perturbed convection-diffusion problems. Numer. Alg. 87 (2021), pp. 203–221. doi: 10.1007/s11075-020-00964-z H.-G. Roos and T. Linß. Sufficient conditions for uniform convergence on layer-adapted grids. Computing 63.1 (1999), pp. 27–45. doi: 10.1007/s006070050049. H.-G. Roos and M. Stynes. Some open questions in the numerical analysis of singularly perturbed differential equations. Comput. Meth. Appl. Math. 15.4 (2015), pp. 531–550. doi: 10.1515/cmam-2015-0011. H.-G. Roos, M. Stynes, and L. Tobiska. Robust numerical methods for singularly perturbed differential equations. Vol. 24. Springer Series in Computational Mathematics. Springer-Verlag, 2008. doi: 10.1007/978-3-540-34467-4 G. I. Shishkin. A difference scheme for a singularly perturbed equation of parabolic type with discontinuous boundary conditions. USSR Comput. Math. Math. Phys. 28.6 (1988), pp. 32–41. doi: 10.1016/0041-5553(88)90039-0. M. Stynes. Steady-state convection-diffusion problems. Acta Numer. 14 (2005), pp. 445–508. doi: 10.1017/S0962492904000261. R. Vulanović and T. A. Nhan. Robust hybrid schemes of higher order for singularly perturbed convection-diffusion problems. Appl. Math. Comput. 386 (2020), p. 125495. doi: 10.1016/j.amc.2020.125495. R. Vulanović and T. A. Nhan. Uniform convergence via preconditioning. Int. J. Numer. Anal. Model. Ser. B 5.4 (2014), pp. 347–356. url: www.global-sci.org/intro/article_detail/ijnamb/239.html

BackgroundThe experience of art offers an emerging field in healthcare staff development, much of which is appropriate to the practice of palliative care. The workings of aesthetic learning interventions such as interactive theatre in relation to palliative and end of-life care staff development programmes are widely uncharted.AimTo investigate the use of aesthetic learning interventions used in palliative and end-of-life care staff development programmes.DesignScoping review.Data sourcesPublished literature from 1997 to 2015, MEDLINE, CINAHL and Applied Social Sciences Index and Abstracts, key journals and citation tracking.ResultsThe review included 138 studies containing 60 types of art. Studies explored palliative care scenarios from a safe distance. Learning from art as experience involved the amalgamation of action, emotion and meaning. Art forms were used to transport healthcare professionals into an aesthetic learning experience that could be reflected in the lived experience of healthcare practice. The proposed learning included the development of practical and technical skills; empathy and compassion; awareness of self; awareness of others and the wider narrative of illness; and personal development.ConclusionAesthetic learning interventions might be helpful in the delivery of palliative care staff development programmes by offering another dimension to the learning experience. As researchers continue to find solutions to understanding the efficacy of such interventions, we argue that evaluating the contextual factors, including the interplay between the experience of the programme and its impact on the healthcare professional, will help identify how the programmes work and thus how they can contribute to improvements in palliative care.References. Economist Intelligence Unit. 2015Quality of Death Index Ranking palliative care across the world. https://www.eiuperspectives.economist.com/healthcare/2015-quality-death-index, (2013 accessed 09/01/2017). World Health Organisation.WHO Definition of Palliative Care. Geneva: WHO. 2009.. Department of Health.Equity and excellence: Liberating the NHS. London: The Stationery Office Ltd. 2010.. Neuberger J.More care, less pathway: a review of the Liverpool care pathwayhttps://www.gov.uk/government/uploads/system/uploads/attachment_data/file/212450/Liverpool_Care_Pathway.pdf,(2013, accessed 09/12/2015). The National Council for Palliative Care. Commissioning Guidance for Specialist Palliative Care: Helping to deliver commissioning objectives.http://www.ncpc.org.uk/sites/default/files/CommissioningGuidanceforSpecialistPalliativeCare.pdf, (2012, accessed 15/12/2015). 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In this paper, we review on diurnal variations of the foF2 ionospheric parameter predicted by the IRI-2012 model, and data from Ouagadougou ionosonde station located in the crest of the Equatorial Anomaly (Lat: 12.5°N; Long: 358.5°E, dip: 1.43°) during fluctuating geomagnetic activity conditions for the solar cycles 21 and 22. Our investigations are focused on the electrodynamic aspects, the influence of the ionospheric electric currents as well as the variations of the hourly values given by model and experimental measurements. A comparative study pointed out that the IRI-2012 model, through its URSI and CCIR subroutines, gives a good prediction of the critical frequency of the F2 layer between 0700 TL and 0000 TL. In addition, IRI -2012 tries to reproduce, as best as possible, the vertical drift E × B during minimum, decreasing phase, winter, and autumn. However, there is no effect of drift during the other seasons and solar cycle phases. A last, the model does not take into account the PRE phenomenon observed in autumn and the influence of the equatorial electrojet in this ionospheric zone.ReferencesAcharya R., Roy B., Sivaraman M.R., 2010. Dasgupta A. An empirical relation of daytime equatorial total electron content with equatorial electrojet in the Indian zone. J Atmos Terr Phys, 72(10), 774–780.Acharya R., Roy B., Sivaraman M.R.; Dasgupta A., 2011. On conformity of the EEJ based Ionospheric model to the Fountain effect and resulting improvements. J Atmos Terr Phys, 73, 779-784.Adeniyi J.O., Oladipo O.A., Radicella S.M., 2005. Variability of fof2 and comparison with iri model for an equatorial station. The Abdus Salam International Centre for Theoretical Physics, IC/2005/085, http://www.ictp.it/~pub_off.Adeniyi1 J.O., Oladjipo O.A., Radicella S.M., 2005. Variability of foF2 and comparison with IRI model for an equatorial station. The Abdus Salam International Centre for Theoretical Physics, IC/2005/085.Bilitza D., et al., 2014. The International Reference Ionosphere 2012-a model of international collaborationI. J. Space Weather Space Clim, 4, A07.Bilitza D., Reinisch B.W., 2008. International Reference Ionosphere 2007: Improvements and new parameters. Adv. Space Res, 42, 599–609.Farley D.T., Bonell E., Fejer B.G., Larsen M.F., 1986. The Prereversal Enhancement of the Zonal Electric Field in the Equatorial Ionosphere. J Geophys Res, 91(A12), 13,723–13,728.Faynot J.M., Villa P., 1979. F region at the magnetic equator. Ann Geophys, 35, 1–9.Fejer B.G., 1981. The equatorial ionospheric electric fields: A review. J Atmos Terr Phys, 43, 377.Fejer B.G., Farley D.T., Woodman R.F., Calderon C., 1979. Dependence of equatorial F region vertical drifts on season and solar cycle. J Geophys Res, 84, 5792.Legrand J.P., Simon P.A., 1989. Solar cycle and geomagnetic activity: A review for geophysicists. Part I. The contributions to geomagnetic activity of shock waves and of the solar wind. Ann. Geophys, 7, 565–578.Obrou K.O., 2008. Contribution à l’amélioration du modèle "International Reference Ionosphere" (IRI) pour l’ionosphère équatoriale. Thèse de doctorat Université de Cocody, Abidjan, Côte d’Ivoire.Ouattara F., 2009. Contribution à l’étude des relations entre les deux composantes du champ magnétique solaire et l’Ionosphère Equatoriale. Thèse de Doctorat d’Etat ès Sciences, Université Cheikh Anta Diop, Dakar, Sénégal.Ouattara F., 2013. IRI-2007 foF2 Predictions at Ouagadougou Station during Quiet Time Periods from 1985 to 1995. Archives of Physics Research, 4, 12–18.Ouattara F., Amory-Mazaudier C., 2009. Solar–geomagnetic activity and Aa indices toward a Standard. J. Atmos. Terr. Phys, 71, 1736–1748.Ouattra F., Nanéma, 2014. Quiet Time foF2 Variation at Ouagadougou Station and Comparison with TIEGCM and IRI-2012 Predictions for 1985 and 1990. Physical Science International Journal, 4(6), 892–902.Oyekola O.S., Fagundes P.R., 2012. Equatorial F2-layer variations: Comparison between F2 peak parameters at Ouagadougou with the IRI-2007 model. Earth, Planets Space, 64, 553–566.Rishbeth H., 1971. The F-layer dynamo. Planet, Space Sci, 19, 263.Vassal J.A., 1982. The variation of the magnetic field and its relationship with the equatorial electrojet in Senegal Oriental. Annals of Geophysics, Tome French, 38.Zerbo J.L., Amory-Mazaudier C. Ouattara F., Richardson J., 2012. Solar Wind and Geomagnetism, toward a Standard Classification 1868-2009. Ann Geophys, 30, 421–426. http://dx.doi.org/10.5194/angeo-30-421-2012.Zerbo J.L., Amory-Mazaudier C., Ouattara F., 2013. Geomagnetism during solar cycle 23: Characteristics. J. Adv. Res, 4(3), 265–274. Doi:10.1016/j.jare.2013.08.010.Zerbo J.L., Ouattara F., Zoundi C., Gyébré A., 2011. Solar cycle 23 and geomagnetic activity since 1868. Revue CAMES serie A, 12(2), 255–262.

The human propensity for high levels of serum uric acid (SUA) is a trait that has defied explanation. Is it beneficial? Is it pathogenic? Its role in the human diseases like gout and kidney stones was discovered over a century ago [Richette P, Bardin T. Lancet 375: 318–328, 2010; Rivard C, Thomas J, Lanaspa MA, Johnson RJ. Rheumatology (Oxford) 52: 421–426, 2013], but today emerging new genetic and epidemiological techniques have revived an age-old debate over whether high uric acid levels (hyperuricemia) independently increase risk for diseases like hypertension and chronic kidney disease [Feig DI. J Clin Hypertens (Greenwich) 14: 346–352, 2012; Feig DI, Madero M, Jalal DI, Sanchez-Lozada LG, Johnson RJ. J Pediatr 162: 896–902, 2013; Feig DI, Soletsky B, Johnson RJ. JAMA 300: 924–932, 2008; Wang J, Qin T, Chen J, Li Y, Wang L, Huang H, Li J. PLoS One 9: e114259, 2014; Zhu P, Liu Y, Han L, Xu G, Ran JM. PLoS One 9: e100801, 2014]. Part of the mystery of the role uric acid plays in human health stems from our lack of understanding of how humans regulate uric acid homeostasis, an understanding that could shed light on the historic role of uric acid in human adaptation and its present role in human pathogenesis. This review will highlight the recent work to identify the first important human uric acid secretory transporter, ABCG2, and the identification of a common causal ABCG2 variant, Q141K, for hyperuricemia and gout.

AbstractFollowing the pioneering work in the PhD dissertation by Snow (PhD thesis, Rep. No. 502, Div. of Geodetic Sci, School of Earth Sciences, The Ohio State University, Columbus, OH, USA, 2012), the two articles by Schaffrin et al. (J Geodetic Sci 4(1):28–36, 2014) and by Jazaeri et al. (Z für Vermessungswesen 139(4):229–240, 2014) provided a broad overview of the Total Least-Squares (TLS) adjustment within EIV-Models with singular cofactor matrices. Around the same time, Xu et al. (J Geodesy 86:661–675, 2012) proposed a specific algorithm to find the TLS solution within a partial EIV-Model, which has been improved by various authors since, including Shi et al. (J Geodesy 89(1):13–16, 2015), Wang et al. (Cehui Xuebao/Acta Geodaet et Cartograph Sinica 46(8):978–987, 2017), Zhao (Surv Rev 49(356):346–354, 2017), and Han et al. (Surv Rev 52(371):126–133, 2020), to name a few. On the other hand, it is easy to see that the partial EIV-Model is a special case of the general EIV-Model with singular cofactor matrices and thus does not need a separate class of algorithms unless they are more efficient than the standard algorithms. This, however, does not seem to be guaranteed as will be shown in this contribution for the straight-line adjustment under $$Q_A = Q_0 \otimes Q_x$$ Q A = Q 0 ⊗ Q x . As a consequence, we shall argue that, rather than discussing the partial EIV-Model, it would be more worthwhile to make the respective developments within an EIV-Model with singular cofactor matrices directly.

Kyungsoo Oh of Chung-Ang University cyclized (Org. Lett. 2015, 17, 450) the chloro enone 1 with NBS to the furan 2. Hongwei Zhou of Zhejiang University acylated (Adv. Synth. Catal. 2015, 357, 389) the imine 3, leading to the furan 4. H. Surya Prakash Rao of Pondicherry University found (Synlett 2014, 26, 1059) that under Blaise conditions, exposure of 5 to three equivalents of 6 led to the pyrrole 7. Yoshiaki Nishibayashi of the University of Tokyo and Yoshihiro Miyake, now at Nagoya University, prepared (Chem. Commun. 2014, 50, 8900) the pyrrole 10 by adding the silane 9 to the enone 8. Barry M. Trost of Stanford University developed (Org. Lett. 2015, 17, 1433) the phosphine-mediated cyclization of 11 to an intermediate that on brief exposure to a Pd catalyst was converted to the pyridine 12. Nagatoshi Nishiwaki of the Kochi University of Technology added (Chem. Lett. 2015, 44, 776) the dinitrolactam 14 to the enone 13 to give the pyridine 15. Metin Balci of the Middle East Technical University assembled (Org. Lett. 2015, 17, 964) the tricyclic pyridine 18 by adding propargyl amine 17 to the aldehyde 16. Chada Raji Reddy of the Indian Institute of Chemical Technology cyclized (Org. Lett. 2015, 17, 896) the azido enyne 19 to the pyridine 20 by simple exposure to I2. Björn C. G. Söderberg of West Virginia University used (J. Org. Chem. 2015, 80, 4783) a Pd catalyst to simultaneously reduce and cyclize 21 to the indole 22. Ranjan Jana of the Indian Institute of Chemical Biology effected (Org. Lett. 2015, 17, 672) sequential ortho C–H activation and cyclization, adding 23 to 24 to give the 2-substituted indole 25. In a complementary approach, Debabrata Maiti of the Indian Institute of Technology Bombay added (Chem. Eur. J. 2015, 21, 8723) 27 to 26 to give the 3-substituted indole 28. In a Type 8 construction, Nobutaka Fujii and Hiroaki Ohno of Kyoto University employed (Chem. Eur. J. 2015, 21, 1463) a gold catalyst to add 30 to 29, leading to 31.

Les pays de l’Afrique du Nord et du Moyen-Orient vivent depuis 2011 une situation historique. Cette région qui nous était fréquemment présentée comme résistante aux processus de changement dit démocratique, par cette vague de contestations sociales, a fait une preuve qu’il n’existe aucune raison culturelle, politique ou sociale, pour qu’elle reste en dehors de ce mouvement d’émancipation. Ces « révolutions » baptisées « le Printemps arabe » ou « Arabe’89 » font référence aux mouvements sociales qui au cours du XIXe et XXe siècles ont touché un bon nombre des pays d’Europe. Ils incitent également à se demander si celles-ci s’inscrivent dans les cadres des théories de la révolution sociale et s’ils peuvent être examinés en s’appuyant sur les modèles jusqu’ ici existants. L’objectif de cet article sera entre autres de répondre à la question si c’était possible de prévoir les situations révolutionnaires dans les pays de MENA en s’appuyant sur les pronostics élabores par chercheures ainsi que différents instituts internationales. Deuxièmement nous chercherons les explications théorétiques des phénomènes récents dans les pays arabes. Pour cela nous nous pencherons sur les travaux de J. Goldstone, qui divise les révolutions en fonction de quatre générations. La dernière partie de ce texte tentera à examiner la théorie de la troisième vague de la démocratisation et son application dans le cas du Printemps arabe.

AbstractThe urgency for developing a circular economy is growing, and more and more companies and organisations are concerned with the importance of adapting their business to fit a changing economy. However, many analyses on the circular economy are still rather abstract and there is a lack of understanding about what circularity would mean for specific industries. This insufficient insight especially seems to be apparent in the building and construction sector. Besides, the building and construction sector is responsible for a major part of energy use and emissions. To tackle the issue of insufficient insight into the business consequences of circular devlopments, further research is necessary. Therefore, we propose to collaborate on a research project that aims to provide a more detailed level of analysis. The goal is to identify drivers and barriers to make better use of materials in the building and construction sector. This further research would benefit from an international collaboration between universities of applied sciences and industry from different European countries. An additional benefit of the applied orientation would be the relevance for professional education programmes. References CBS, PBL & Wageningen UR. (2017). Vrijkomen en verwerking van afval per doelgroep, 1990-2014 (indicator 0206, versie 13, 26 janauri2017). Retrieved from: https://www.clo.nl/indicatoren/nl0206-vrijkomen-en-verwerking-van-afval-per-doelgroep Cuchí, A.; Arcas, J.; Casals, M. & Fobella, G. (2014). Building a common home Building sector – A global vision report. Produced by the Global Vision Area within the World SB14 Barcelona Conference. De Jesus, A. & Mendonça, S. (2018). Lost in Transition? Drivers and Barriers in the Eco-innovation Road to the Circular Economy. Ecological Economics, 145, 75-89. doi: 10.1016/j.ecolecon.2017.08.001. EC. (2015). Closing the Loop – An EU action plan for the Circular Economy. Brussels: European Commission. EC. (2019). Report from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions on the implementation of the Circualr Economy Action Plan. Brussels: European Commission. Ghisellini, P; Cialini, C. & Ulgiati, S. (2016). A review on circular economy: the expected transition to a balanced interplay of environmental and economic systems. Journal of Cleaner Production, 114, 11-32. doi: 10.1016/j.jclepro.2015.09.007. Kirchherr, J., Pisciceli, L., Bour, R., Kostense-Smit, E., Muller, J., Huibrechtse-Truijens, A. & Hekkert, M. (2018). Barriers to the Circular Economy: Evidence From the European Union (EU). Ecological Economics, 150, 264-272. Mazzucato, M. (2018). Mission-Oriented Research & Innovation in the European Union – A problem-solving approach to fuel innovation-led growth. Retrieved from: European Commission; https://ec.europa.eu/info/sites/info/files/mazzucato_report_2018.pdf Nederland circulair in 2050. Rijksbreed programma Circulaire Economie (2016). Den Haag: Ministerie van Infrastructuur en Milieu & Ministerie van Economische Zaken. Stahel, W.R. (2016) The Circular Economy. Nature, 531(7595), 435-438. UN. (2018). 2018 Global Status Report – Towards a zero-emission, efficient and resilient buildings and construction sector. United Nations Environment Programme. UNCTAD. (2018). Circular Economy: The New Normal (Policy Brief No. 61). Retrieved from United Nations Conference on Trade and Development (UNCTAD): https://unctad.org/en/PublicationsLibrary/presspb2017d10_en.pdf

Between territories: Incremental changes to the domestic spatial interface between private and public domains. Agnieszka Wir-Konas¹, Kyung Wook Seo¹ ¹Department of Architecture and Built Environment, Northumbria University, Newcastle upon Tyne. Newcastle City Campus, 2 Ellison Pl, Newcastle upon Tyne NE1 8ST. E-mail: agnieszka.wir-konas@northumbria.ac.uk, kyung.seo@northumbria.ac.uk Keywords (3-5): building-street interface, incremental change, micro-morphology, private-public boundary, territory Conference topics and scale: Urban form and social use of space In this paper we investigate incremental changes to the relationship between private and public territory on the micro-morphological scale of the residential building-street interface. The building-street interface lies on the edge between two distinctively different spatial domains, the house and the street, and provides a buffer which may be adjusted to aid the transition from private to public territory. The structure of the space impacts both domains: it provides a fit transition from the private dwelling to the public territory, creates a space for probabilistic encounters between inhabitants and strangers, and maintains the liveability of the public street. The aim of this paper is threefold: Firstly, we recognise morphological differences in the structure of the interfaces and the way the transition from private to public territory was envisioned and designed in different societal periods. Secondly, we study incremental changes to the interface, representing individual adjustments to the private-public boundary, in order to recognize common types of adaptations to the existing structure of the interface. The history of changes to each individual building and building-street interface was traced by analysing planning applications and enforcements publicly provided by the city council. Lastly, we compare the capacity of each building-street interface to accommodate incremental change to the public-private transition. We argue that studying the incremental change of the interface and the capacity of each interface to accommodate micro-scale transformations aids in the understanding of the complex social relationship between an individual and a collective in the urban environment. References (180 words) Conzen, M. R. G. (1960). Alnwick, Northumberland: a study in town-plan analysis. Transactions and Papers (Institute of British Geographers) 27, iii-122. Gehl, J. (1986) ‘Soft edges in residential streets’. Scandinavian Housing and Planning Research 3(2), 89-192 Gehl, J. (2013) Cities for People (Island Press, Washington DC). Habraken, N. J. and Teicher, J. (2000) The structure of the ordinary: form and control in the built environment (MIT press, Cambridge). Hillier, B. and Hanson, J. (1984) The Social Logic of Space (Cambridge: Cambridge University Press). Jacobs, J. (1961) The Death and Life of Great American Cities (Middlesex: Penguin, Harmondsworth). Lawrence, R. J. (1987) Housing, dwellings and homes: Design theory, research and practice (John Wiley, Chichester). Palaiologou, G., Griffiths, S., and Vaughan, L. (2016), ‘Reclaiming the virtual community for spatial cultures: Functional generality and cultural specificity at the interface of building and street’. Journal of Space Syntax 7(1), 25-54. Whitehand, J. W. R. and Morton, N. J. and Carr, C. M. H. (1999) ‘Urban Morphogenesis at the Microscale: How Houses Change’, Environment and Planning B: Planning and Design 26(4), 503-515.

Maddalena Iovene¹, Graciela Fernandéz De Córdova2, Ombretta Romice¹, Sergio Porta¹ ¹Urban Design Studies Unit (UDSU). Department of Architecture. University of Strathclyde. 75 Montrose Street, Glasgow, G11XJ, UK. 2Centro de Investigación de la Arquitectura y la Ciudad (CIAC), Departamento de Arquitectura, PUCP. Av. Universitaria 1801, 32 San Miguel, Lima, Peru. E-mail: maddalena.iovene@strath.ac.uk, gdcfernandez@pucp.edu.pe, ombretta.r.romice@strath.ac.uk, sergioporta@strath.ac.uk Keywords (3-5): Informal Settlement, Peru, Lima, Model of Change, Urban Morphology Conference topics and scale: Reading and Regenerating the Informal City Cities are the largest complex adaptive system in human culture and have always been changing in time according to largely unplanned patterns of development. Though urban morphology has typically addressed studies of form in cities, with emphasis on historical cases, diachronic comparative studies are still relatively rare, especially those based on quantitative analysis. As a result, we are still far from laying the ground for a comprehensive understanding of the urban form’s model of change. However, developing such understanding is extremely relevant as the cross-scale interlink between the spatial and social-economic dynamics in cities are increasingly recognized to play a major role in the complex functioning of urban systems and quality of life. We study the urban form of San Pedro de Ate, an informal settlement in Lima, Peru, along its entire cycle of development over the last seventy years. Our study, conducted through a four-months on-site field research, is based on the idea that informal settlements would change according to patterns similar to those of pre-modern cities, though at a much faster pace of growth, yet giving the opportunity to observe the evolution of an urban organism in a limited time span. To do so we first digitalize aerial photographs of five different time periods (from 1944 to 2013), to then conduct a typo-morphological analysis at five scales: a) unit, b) building, c) plot, d) block, and e) settlement (comprehensive of public spaces and street network). We identify and classify patterns of change in the settlement’s urban structure using recognised literature on pre-modern cities, thus supporting our original hypothesis. We then suggest a unitary model of analysis that we name Temporal Settlement Matrix (TSM). Reference List Caniggia, G., & Maffei, G. L. (2008). Lettura dell’edilizia di base (Vol. 215). Alinea Editrice. Conzen, M. R. G. (1958). The growth and character of Whitby. A Survey of Whitby and the Surrounding Area, 49–89. Hernández, F., Kellett, P. W., & Allen, L. K. (2010). Rethinking the informal city: critical perspectives from Latin America (Vol. 11). Berghahn Books. Kropf, K. (2009). Aspects of urban form. Urban Morphology, 13(2), 105–120. Muratori, S. (1960). Studi per una operante storia urbana di Venezia. Palladio, 1959, 1–113. 22. Porta, S., Romice, O., Maxwell, J. A., Russell, P., & Baird, D. (2014). Alterations in scale: patterns of change in main street networks across time and space. Urban Studies, 51(16), 3383–3400. Watson, V. (2009). “The planned city sweeps the poor away…”: Urban planning and 21st century urbanisation. Progress in Planning, 72(3), 151–193. Whitehand, J. W. R. (2001). Changing suburban landscapes at the microscale. Tijdschrift Voor Economische En Sociale Geografie, 92(2), 164–184.

Transformative Urban Railway: Ankara Commuter Line and Lost LandscapeFunda Baş Bütüner¹, Ela Alanyalı Aral¹, Selin Çavdar² ¹Middle East Technical University. Department of Architecture. Ankara. Dumlupınar Bulvarı no:1 06800 Ankara Turkey ² Middle East Technical University. Department of City and Regional Planning. Ankara. Dumlupınar Bulvarı no:1 06800 Ankara Turkey E-mail: fbutuner@metu.edu.tr, earal@metu.edu.tr, selin.cavdar@gmail.com Keywords (3-5): urban railway, urban landscape, Ankara, commuter line, landscape infrastructure Conference topics and scale: Urban green space Being major transportation infrastructure of the 19th and early 20th centuries, the impacts of railways on cities have highly directed urban discourses; deforming material edge of cities, encouraging urban extension, formation of new territories, and speeding up urban development. However, in recent decades, with newly emerging discussions on landscape infrastructure, a new idea for a more integrated infrastructure and urban system has started to be formulated. Railway strips, occurring as terrains where solid-void morphology of cities becomes illegible, emerge as generators in the formation of new urban green network. Within this framework, Ankara commuter line that mark outs a route approximately 37 kilometers in length in the city, is a remarkable case for a motivating discussion on railway and landscape confrontation. Penetrating the city in east-west direction, the commuter line integrated with a rural landscape –covering vegetable gardens and creeks- that was serving as a recreational field for citizens until 1950s. However, the transformative nature of the railway, encouraged the development of new urban lands, industrial areas and neighborhoods along its route, and erased the characteristic landscape along the railway. The continuous landscape integrated with green, water and railway infrastructure became fragmented covering only some splits of green and water. In this respect, this study dwells on the lost landscape of the commuter line by mapping the fragmented continuity of the railway, green and water infrastructure from 1950’s until today to show the limited, but potential interaction of these three systems in the current urban fabric. References Allen, S. (1999). Infrastructural Urbanism, in Allen, S. (ed.) Points and Lines: Diagrams and Projects for The City (Princeton Architectural Press, New York) 40-89. Bertolini, L., Spit, T. (1998). Cities on Rails (Routledge, London). Hung, Y. (2013). Landscape Infrastructure: Systems of Contingency, Flexibility, and Adaptability, in Hung, Y., Aquino, G., Waldheim, C., Czerniak, J., Geuze, A., Robinson, A., Skjonsberg, M. (ed.) Landscape Infrastructure (Birkhauser, Basel) 14-19. Tatom, J. (2006). Urban Highways and the Reluctant Urban Realm. C. Waldheim (Ed.). The Landscape Urbanism Reader (Princeton Architectural Press, New York) 179-196. Waldheim, C. (2016). Landscape as Urbanism: A General Theory (Princeton University Press).

Bolted joints are a major part of wind energy plants. Due to climatic conditions, they are often exposed to temperatures far below the freezing point. Together with the multiaxial state of stress, which results from the notch effect of the thread, and possible dynamic overloads during operation, sufficient ductility of the material is needed. The state of the art method to investigate the ductile behavior of fasteners is the Charpy pendulum impact test with a V-notched specimen. According to international standard DIN EN ISO 898-1 [1] respectively ASTM F568M-07 [2], fasteners made of carbon steel and alloy steel with a body centered cubic lattice structure can be used for temperatures down to 223 K (−50°C, −58°F) as long as a minimum impact energy of 27 J at 253 K (−20°C, −4°F) is met. As there are several disadvantages in using this test method for fasteners, a detailed examination of existing test methods and design concepts is necessary to find alternatives to the Charpy pendulum impact test. Extensive quasi-static and dynamic material tests were conducted on fasteners with property classes 5.6, 10.9 and 12.9 in a temperature range between 203 K (−70°C, −94°F) and room temperature 293 K (20°C, 68°F). Both mechanical properties and the influence of different specimen geometries were evaluated. Analytical concepts for the description of the low temperature applicability of different steels were analyzed.

Housing form and city form: Urban morphology and local identityKeywords (3-5): Building type, urban morphology, Valencia, housing, house floor-plan design This paper aims to analyse the processes of typological evolution of residential buildings in Valencia as a way to outline an 'affiliation' within the city's housing types, capable of endowing a local identity profile beyond European influences that began to generalise from mid-XIX century. The residential fabric of Valencia maintained a certain continuity/ intelligibility in its morphological evolution until the 1970s, in which the development of the 1966 PG marked a turning point, with the progressive incorporation of "modern" forms of housing, vaguely related to the diffusion of CIAM architectural principles. Nevertheless, a most substantial part of the city fabric, amounting to two-thirds of all residential buildings, was built before the 1966 PG, and therefore away from 'modern' housing practices. Most of this fabric, corresponding to neighbourhoods resulting from urban extension projects starting in the second half of the nineteenth century, is made out of serially-aggregated, multi-family buildings or 'houses of flats', forming perimeter blocks, whose profile still characterises visually the city's townscape. To a large extent, these 'houses of flats' are the result of a progressive codification of building prototypes that first appeared in the historic city, originating from the transformation of the traditional city-house. Initially, the transformation began with increasing the number of storeys, successively followed with processes of plot-aggregation, all combined with an horizontal division configuring new housing floor-plans. These processes progressively generated larger buildings, in which the plot shape and dimensions appear as determining instances. References (100 Word) ALONSO DE ARMIÑO, L. y PIÑON, J.L. (1986). La formazione del la Valencia moderna. Sutoria Urbana, (37), 89-114. AZAGRA, J. (1993). Propiedad inmueble y crecimiento urbano. Valencia 1800-1931. Madrid: Síntesis. BRIGUZ Y BRU, G. (1837). Escuela de Arquitectura Civil. Valencia: Joseph de Orga. HERMOSILLA, J. (1750). La architectura civil (manuscrito). DALY, M.C. (1864). L’architecture privée au XIXème siècle, sous Napoléon III MOLEY, C. (1999). Regard sur l’immeuble privé. Architecture d’un habitat 1880-1970. Paris: Le Moniteur. PIÑÓN, J.L. (1988). Los orígenes de la Valencia moderna PONS, A. y SERNA, J. (1992). La ciudad extensa. Valencia: Diputació de València. SANCHO, A. (1855). Mejoras materiales de Valencia. Valencia: Imprenta de José Mateu.

Reconstrucción virtual de ambientes urbanos a partir de fotografías históricas a través de Image Based Animations (IBA). La Plaza de la Virgen de Valencia alrededor de 1870. Jose Luis Cabanes Ginés¹, Federico Iborra Bernad², Carlos Bonafé Cervera3 ¹Departamento de Expresión Gráfica Arquitectónica. Universidad Politécnica de Valencia. Caminio de Vera s/n 46022 Valencia. 2Departamento de Composición Arquitectónica. Universidad Politécnica de Valencia. Caminio de Vera s/n 46022 Valencia 3Departamento de Ing. Cartográf. Geodesia y Fotogramtría. Universidad Politécnica de Valencia. Caminio de Vera s/n 46022 Valencia E-mail: jlcabane@ega.upv.es, f_iborra@yahoo.es, carboce1@topo.upv.es Keywords (3-5): virtual reconstruction, historical urban environment, image based animations Conference topics and scale: City transformations / Tools of analysis in urban morphology The recreation of the historical environment of emblematic urban spaces in our cities through interactive technologies, allows to extend their knowledge among the interested users while contributing to its assessment. When the documentary bases are photographs it is possible to carefully model the recorded elements using photogrammetry techniques based on 3D primitives, so that by means of an immersive navigation limited to certain points of view, an appearance of acceptable tridimensionality is obtained, where only isolated images of dispersed frames are available. The virtual recreation can be completed increasing its realistic appearance through its edition with animations of objects (for example, carriages) and characters, texts, musical setting, etc. The results can be presented in formats such as video or navigation through virtual reality helmets. From a selection of the first historical photographs of the Plaza de la Virgen, that we have obtained searching in several documentary sources, our multidisciplinary team is interested in a reliable, realistic and pleasant presentation of the urban environment of one of the most representative places in the city of Valencia, whose spatial configuration has changed significantly over the years. References (100 words) Braun, C., Kolbe, T. H., Lang, F., Schickler, W., Steinhage, V., Cremers, A. B., Förstner, W., Plümer, L., 1995. Models for photogrammetric building reconstruction. Computers & Graphics, Volume 19, Issue 1, pp. 109-118. Debevec, P., Taylor, C. J. and Malik, J., 1996. Modeling and rendering architecture from photographs: A hybrid geometry and image-based approach. SIGGRAPH’96, pp. 11–20. De Mesa, A., Regot, J., Nuñez, M. A. and Buill, F., (2009). Métodos y procesos para el levantamiento de reconstrucción tridimensional gráfica de elementos del patrimonio cultural. La iglesia de Sant Sever de Barcelona. Revista EGA, nº 14, pp. 82-89. Drap, P., Grussenmeyer, P. and Gaillard, G., 2001. Simple Photogrammetric Methods with ARPENTEUR: 3-D Plotting and Orthoimage generation. XVIII International Symposium CIPA 2001, Potsdam (Germany). International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, nº 34 (Part 5/C7), pp. 47-54. El-Hakim, S., Beraldin, J. and Lapointe, A., 2002. Towards Automatic Modeling of Monuments and Towers. IEEE Proceedings of the International Symposium on 3D Data Processing Visualization and Transmission, 3DPVT 2002, Padua, Italy, pp. 526-531. Proyecto Barcelona Darrera Mirada, http://darreramirada.ajuntament.barcelona.cat/#historia/8/1 The Old New York, http://vimeo.com/160024074, https://vimeo.com/162572088

Laser micromachining of aluminum films on glass substrates is investigated using a time-resolved transmission imaging technique with nanosecond resolution. Micromachining is performed using a 7 ns pulse-width Nd:YAG laser operating at the 1064 nm wavelength for fluences ranging from 2.2 to 14.5 J/cm2. Transmission imaging uses a nitrogen laser-pumped dye laser with a 3 ns pulse-width and 500 nm wavelength. Images are taken from the back of the sample at various time delays with respect to the beginning of the ablation process, allowing the transient hole opening process to be observed and measured. Results show that for high fluences the holes begin opening during the laser pulse and that the major portion of the holes have opened within the first 50 ns of the process. The second stage of the process is slower and lasts between 100–200 ns. The rapid hole opening process can be attributed to melt expulsion due to recoil pressure on the surface of the melt pool rather than Marangoni flow. Recoil pressure may be due to vaporization at the free surface at low fluences and phase explosion (explosive liquid-vapor phase change) at higher fluences. Measurements of the transient shock wave position are used to estimate the pressure behind the shock wave and indicate pressures at high as 89 atm during ablation. The high pressure above the laser spot results in pressure on the molten surface, leading to expulsion of the molten pool in the radial direction.

The controlled atmospheric re-entry associated with the precision soft-landing of Reusable Launch Vehicles (RLVs) on Earth is very challenging as it depends on multiple parameters [1]. Over the last decade, the cost-effectiveness of such a technology has been finally demonstrated with the successful recoveries of SpaceX’s Falcon 9 first-stage rocket first [2], then followed by other companies such as the Rocket Lab’s Electron micro-launcher [3]. This breakthrough has been made possible by the development of advanced and robust computational methods able to generate in real time the flight conditions and to command the optimal vehicle's deflections accordingly to achieve a safe pinpoint landing. Indeed, during an Earth atmospheric re-entry, the vehicle is subjected to fast system dynamics changes partly induced by external loads associated with the terrestrial environment (e.g., lift, drag, wind and gusts), but also by the actuation commands to answer the landing constraints satisfaction and the vehicle integrity preservation. All those involve uncertainties and nonlinearities, which lead to vehicle’s instability and therefore give reason why for a highly performant Guidance, Navigation and Control system implementation [4]. More particularly, one of the critical aspects is the design of a robust control strategy capable of counteracting the previously defined disturbances and uncertainties while satisfying the strict accuracy requirements associated with the pinpoint landing [5]. As demonstrated by the current state-of-the-art on control design for launchers [6-7], the classical linear control theory represents a rich heritage with a lot of applications. This choice was motivated by its relative easiness of implementation and the possibility to use gain-scheduling techniques to adapt to nonlinear systems. Nevertheless, these techniques are well-adapted to the control system design of single-input single-output systems, such as for example a reusable rocket using a Thrust Vector Control (TVC) system as the unique actuator. The implementation of multiple-input multiple-output control systems becomes then complex since every channel is addressed in a single-loop fashion. This capability is however required for the future generation of reusable rocket, using also aerodynamic steering based on fins in addition to the TVC system for enhancing control authorities. Moreover, model uncertainties are not accurately considered in the design process, developed only with nominal conditions and stability margin requirements. For all these reasons, it results in an extensive (both in terms of time and cost) Verification and Validation campaign with many iterations and Monte-Carlo analyses to assess the performance and robustness of the control system. To overcome these drawbacks, the H-infinity family of methods, introduced a few years ago [8], provides with a powerful solution for robust control design. It relies on defining the control requirements in the frequency domain in terms of weighting functions and minimising the maximum gain of the resulting weighted system from the exogenous inputs to the outputs to be controlled. Moreover, the control-plant interaction is modelled through a Linear Fractional Transformation (LFT) representing the feedback action. Finally, the structured H-infinity method [9] allows to directly impose a specific control structure – like a Proportional-Integral-Derivative (PID), enabling the re-use of gain-scheduling techniques – and to consider parametric uncertainties for enhanced robustness. This paper studies the synthesis of a robust control system via structured H-infinity for the RLV atmospheric re-entry problem. First, the nonlinear 6-Degree-of-Freedom (6-DoF) RLV re-entry dynamics are simplified into a linear model and then linearised along a reference trajectory to get the nominal LFT of the system, then augmented with parametric uncertainties. The model covers the atmospheric re-entry and vertical landing of a first-stage rocket equipped with a TVC system and steerable planar fins. The controllers are built at different points of the re-entry trajectory, using the structured H-infinity framework through PID-like structures. Weighting functions considering the control objectives and requirements of a realistic RLV re-entry scenario are implemented. A robust stability analysis of the obtained system is performed via classical stability margins and structured singular value. Finally, the controllers are gain-scheduled and validated via Monte-Carlo analyses, using a nonlinear 6-DoF RLV re-entry dynamics simulator equipped with successive convex optimisation guidance. The performance of the resulting guidance and control architecture is compared with the baseline developed in previous works [10], using a TVC system only and classical linear feedback control through gain-scheduled PID controllers. This study lies within the ASCenSIon (Advancing Space Access Capabilities - Reusability and Multiple Satellite Injection) project, an innovative training network funded within H2020. References: [1] L. Blackmore, “Autonomous Precision Landing of Space Rockets”, The Bridge on Frontiers of Engineering, Vol. 4, No. 46, pp. 15–20 (2016). [2] M. Wall, “Wow! SpaceX Lands Orbital Rocket Successfully in Historic First”, SPACE.com (2015). Retrieval Date: 20-Jan-2022. URL: https://www.space.com/31420-spacex-rocket-landing-success.html [3] Rocket Lab (2017). “Rocket Lab Electron 'Its a Test' flight successfully makes it to space”. Retrieval Date: 20-Jan-2022. URL: https://www.rocketlabusa.com/updates/rocket-lab-successfully-makes-it-to-space-2/ [4] P. Simplício, A. Marcos, and S. Bennani. “Reusable Launchers: Development of a Coupled Flight Mechanics, Guidance, and Control Benchmark", Journal of Spacecraft and Rockets, Vol. 57, No. 1, pp. 74-89 (2020). [5] Marco Sagliano et al. “Robust Control for Reusable Rockets via Structured H-infinity Synthesis”. In: Proceedings of the 11th International ESA Conference on Guidance, Navigation & Control Systems. Virtual Event, 22-25 June 2021. [6] C. Roux and I. Cruciani, “Scheduling Schemes and Control Law Robustness in Atmospheric Flight of VEGA”. In: Proceedings of the 7th International ESA Conference on Guidance, Navigation and Control Systems. Tralee, County Kerry, Ireland 2-5 June 2008. [7] Erwin Mooij. Linear Quadratic Regulator Design for an Unpowered, Winged Re-entry Vehicle (Series 08 - Astrodynamics and Satellite Systems, No 3). Delft University Press, 1998. ISBN: 9040715971. [8] J. C. Doyle, K. Glover, P. P. Khargonekar, and B. A. Francis, “State-space Solutions to Standard H2 and H∞ Control Problems,” IEEE Transactions on Automatic Control, vol. 34, no. 8, pp. 831–847, 1989. [9] P. Apkarian and D. Noll, “Nonsmooth H∞ Synthesis,” IEEE Transactions on Automatic Control, vol. 51, no. 1, pp. 71–86, 2006. [10] Alice De Oliveira and Michèle Lavagna. “Reusable Launchers Re-entry Controlled Dynamics Simulator”. In: Proceedings of the 9th European Conference for Aeronautics and Aerospace Sciences. Lille, France, 27th June - 1st July 2022.