Numerical Study of the Seismic Response of an Urban Overpass Support System

A strategic urban overpass is to be built in the so-called transition and hill zones in Mexico City. The subsoil conditions at these zones typically consist on soft to stiff clay and medium to dense sand deposits, randomly interbedded by loose sand lenses, and underlain by rock formations that may outcrop in some areas. Several critical supports of this overpass are going to be instrumented with accelerometers, inclinometers and extensometers to assess their seismic performance during future earthquakes and to generate a database to calibrate soil-structure-interaction numerical models. This paper presents the seismic performance evaluation of one of these supports. The support foundation is a 3.6 by 4.6 m mat, structurally connected to four cast-in-place 0.80 m diameter piles. A finite elements model of the soil-foundation-structure system was developed. Initially, the model was calibrated analyzing the seismic response that an instrumented bridge support exhibited during the June 15th, 1999 Tehuacan (Mw=7) Earthquake. This bridge is located also within the surroundings of Mexico City, but at the lake zone, where highly compressible clays are found. The computed response was compared with the measured response in the free field, box foundation, and structure. Once the model prediction capabilities were established, the seismic response of the critical support of the urban overpass was evaluated for the design earthquake in terms of transfer functions and displacement time histories

The Tone from Above:The Effect of Communicating a Supportive Regulatory Strategy on Reporting Quality

In collaboration with the Authority for the Financial Markets in the Netherlands, we manipulate the content of official letters that instruct financial intermediaries to submit a mandatory self-assessment. As part of the Registered Report Process, we submitted our hypotheses, experimental procedure, and planned statistical analyses before data collection. We predicted that a request indicating a supportive regulatory attitude has a positive effect on reporting quality on average. We also predicted this effect to be stronger for small firms and for firms with a long-term orientation, and to become negative for firms with a short-term orientation. Planned analyses show that a supportive letter reduced reporting quality unless firms had a long-term orientation, supporting the moderating influence of time horizon, but providing no support for the expected average effect or for moderation by firm size

Mitochondrial Thioredoxin-Glutathione Reductase from Larval Taenia crassiceps (Cysticerci)

Mitochondrial thioredoxin-glutathione reductase was purified from larval Taenia crassiceps (cysticerci). The preparation showed NADPH-dependent reductase activity with either thioredoxin or GSSG, and was able to perform thiol/disulfide exchange reactions. At 25°C specific activities were 437 ± 27 mU mg−1 and 840 ± 49 mU mg−1 with thioredoxin and GSSG, respectively. Apparent Km values were 0.87 ± 0.04 μM, 41 ± 6 μM and 19 ± 10 μM for thioredoxin, GSSG and NADPH, respectively. Thioredoxin from eukaryotic sources was accepted as substrate. The enzyme reduced H2O2 in a NADPH-dependent manner, although with low catalytic efficiency. In the presence of thioredoxin, mitochondrial TGR showed a thioredoxin peroxidase-like activity. All disulfide reductase activities were inhibited by auranofin, suggesting mTGR is dependent on selenocysteine. The reductase activity with GSSG showed a higher dependence on temperature as compared with the DTNB reductase activity. The variation of the GSSG- and DTNB reductase activities on pH was dependent on the disulfide substrate. Like the cytosolic isoform, mTGR showed a hysteretic kinetic behavior at moderate or high GSSG concentrations, but it was less sensitive to calcium. The enzyme was able to protect glutamine synthetase from oxidative inactivation, suggesting that mTGR is competent to contend with oxidative stress

Relationship between latent and rebound viruses in a clinical trial of anti-HIV-1 antibody 3BNC117.

A clinical trial was performed to evaluate 3BNC117, a potent anti-HIV-1 antibody, in infected individuals during suppressive antiretroviral therapy and subsequent analytical treatment interruption (ATI). The circulating reservoir was evaluated by quantitative and qualitative viral outgrowth assay (Q2VOA) at entry and after 6 mo. There were no significant quantitative changes in the size of the reservoir before ATI, and the composition of circulating reservoir clones varied in a manner that did not correlate with 3BNC117 sensitivity. 3BNC117 binding site amino acid variants found in rebound viruses preexisted in the latent reservoir. However, only 3 of 217 rebound viruses were identical to 868 latent viruses isolated by Q2VOA and near full-length sequencing. Instead, 63% of the rebound viruses appeared to be recombinants, even in individuals with 3BNC117-resistant reservoir viruses. In conclusion, viruses emerging during ATI in individuals treated with 3BNC117 are not the dominant species found in the circulating latent reservoir, but frequently appear to represent recombinants of latent viruses

SIMA: un sistema integral modular para la gestión administrativa de la Educación Superior

En el presente artículo se expone acerca del desarrollo e implementación de un Sistema Integral Modular Administrativo (SIMA) que conforma una serie de funcionalidades diversas concernientes a la informatización de los Institutos Superiores de Formación Docente y Técnica (ISFD) dependientes de la Dirección de Nivel Superior de la Provincia de Corrientes. Se presentan objetivos y resultados alcanzados en el desarrollo del proyecto, una caracterización general de la arquitectura y funcionalidades de la plataforma, como así también se expresan conclusiones y futuras líneas de acción.Workshop: WTIAE - Tecnología Informática Aplicada en EducaciónRed de Universidades con Carreras en Informátic

Management of a ruptured epidural catheter, an anesthesiologist's dilemma: a case report

Epidural anesthesia is a widely used anesthetic technique in lower extremity surgeries although it is a relatively safe procedure, it can have complications, such as rupture of the epidural catheter. This is a 69-year-old male patient with a diagnosis of Wagner IV diabetic foot is presented, which was scheduled for left supracondylar amputation in which after epidural block, retention of the catheter tip in the epidural space at level L2-L3 was seen, so hemi laminectomy was performed in a second surgical stage in L2 and removal of the epidural catheter. Ideally a broken needle should be removed as soon as possible

Determinación del pH y recuento de mesófilos en carne de boquichico (Prochilodus nigricans) proveniente de los mercados de la ciudad de Pucallpa, Ucayali

The aim of this study was to determine the pH and the count of mesophiles in black prochilodus (“boquichico”) meat (Prochidolus nigricans), from the markets of the city of Pucallpa, Ucayali. In total, 115 samples of boquichico specimens were collected from the 23 stalls distributed in the 5 markets of the city (5 samples per stall, considering the stall as a lot), through a non-probabilistic convenience sampling. The processing was carried out by measuring the pH of the meat and the analysis for the count of mesophiles with the SPC method (aerobic plate count). The averages of the pH values in boquichico meat by market were below the neutral value (pH=7.0), but were higher in the samples from markets 3 and 5; likewise, the mesophilic counts in meat exceeded the Maximum Allowable Limits in 4 of the 23 stalls (two from market N° 1, one from market N° 2 and one from market N° 3). It is concluded that the boquichico meat commercialized in the markets of the city of Pucallpa is not suitable for consumption in three stalls in two Callería markets and in one stall in a market in Manantay.El objetivo del estudio fue determinar el pH y el recuento de mesófilos en carne de boquichico (Prochidolus nigricans), proveniente de los mercados de la ciudad de Pucallpa, Ucayali. Se recolectaron 115 muestras de ejemplares de boquichico de los 23 puestos de venta distribuidos en los 5 mercados de la ciudad (5 muestras por puesto, considerando al puesto de venta como un lote), mediante un muestreo no probabilístico por conveniencia. El procesamiento se realizó mediante la medición del pH de la carne y el análisis para el recuento de mesófilos con el método SPC (conteo de placas aeróbicas). Los promedios de los valores de pH en la carne de boquichico por mercado estuvieron por debajo del valor neutro (pH = 7.0), pero fueron mayores en las muestras procedentes de los mercados 3 y 5; asimismo, los recuentos de mesófilos en la carne sobrepasaron a los Límites Máximos Permisibles en 4 de los 23 puestos de venta (dos del mercado N.° 1, uno del mercado N.° 2 y uno del mercado N.° 3). Se concluye que la carne de boquichico comercializada en los mercados de la ciudad de Pucallpa no es apta para su consumo en tres puestos en dos mercados de Callería y en un puesto de un mercado en Manantay

Valuation of the research and education ecosystem services as input for making decisions from the perspective of risk management and climate change

El artículo presenta la valoración de los servicios ecosistémicos de investigación y educación en la microcuenca de la quebrada Dalí, ubicada dentro de la hacienda Lisbrán; a través de tres objetivos específicos: primero, identificación de información biofísica y socioeconómica del área de estudio (línea base); segundo valoración integral del servicio de “investigación y educación” ofrecido por la microcuenca; por último analizar cómo los servicios ecosistémicos y la educación ambiental pueden convertirse en un insumo para la gestión local. Para el primer se identificaron y clasificaron algunos servicios ecosistémicos mediante información secundaria. Estos fueron evaluados mediante los métodos de ranking y rating, obteniendo los mayores puntajes los servicios de oferta y regulación hídrica, y como segundo y en el cual se fundamenta el artículo los servicios educación y de investigación. Para el segundo se realizó una valoración integral del servicio de “investigación-educación” en sus aspectos ecológicos, sociales y económicos, tomando como objeto de estudio siete programas (pregrado y posgrado) de la Universidad Tecnológica de Pereira. El tercer se desarrolló con la participación de los scout “rama de lobatos” como parte del diseño de un proyecto de educación ambiental que ellos y otras partes interesadas fomenta la importancia de los recursos naturales y los beneficios de la sub-cuenca Dalí como proveedor de servicios ecosistémicos. Los resultados muestran que el área de estudio tiene un gran potencial para ser usada como estación de investigación y sitio de prácticas para estudiantes de pregrado y posgrado. A pesar del hecho de que los profesores y estudiantes entrevistados reconocen la importancia de los atributos ecológicos que ofrece la subcuenca de la quebrada Dali, ninguno de ellos expreso disponibilidad a pagar por usar este sitio como lugar para desarrollar sus investigaciones o tesis de investigación. Sin embargo, la experiencia del trabajo con niños de los grupos scouts en el sitio de estudio sugiere que el sitio tiene un gran potencial no solo para hacer investigación sino también para para la educación ambiental.The article presents the valuation of the research and education ecosystem services in the Dali mountain stream, located in the Lisbran farm through three specific objectives: first, to identify the biophysical and socioeconomic information of the area of study (Baseline); second, to assess comprehensively the "research and education" service offered by the micro basin; and third, to analyze how the ecosystem services and environmental education can become input for local management. Some ecosystem services were identified and classified through secondary information to accomplish the first objective. These were evaluated using the ranking and rating methods, obtaining the highest scores on services of water supply and, in second place, research and education services in which this article is based. A comprehensive assessment of “the research and education” service considering its ecological, social and economic aspects was carried out to achieve the second objective. Seven undergraduate and graduate programs from Universidad Tecnológica de Pereira were taken as the object of study. The third objective was developed with the participation of the cub scouts group as part of the design of an environmental education project that, as well as other stakeholders, encourage the importance of natural resources and the benefits of the Dalí mountain stream as a supplier of valuable ecosystem services. The results show that the area of study has a great potential to be used as a research and educational station as well as internship site for undergraduate and graduate students. Despite the fact that the professors and students interviewed recognize the importance of the ecological attributes offered by the Dali mountain stream, none of them expressed the willingness to pay for the use of this site as a location to conduct their research and thesis projects. However, the experience of working with children from the scout groups suggests that the site has a great potential not only for research but also for environmental education activities

A DNA Microarray-Based Assay to Detect Dual Infection with Two Dengue Virus Serotypes

Here; we have described and tested a microarray based-method for the screening of dengue virus (DENV) serotypes. This DNA microarray assay is specific and sensitive and can detect dual infections with two dengue virus serotypes and single-serotype infections. Other methodologies may underestimate samples containing more than one serotype. This technology can be used to discriminate between the four DENV serotypes. Single-stranded DNA targets were covalently attached to glass slides and hybridised with specific labelled probes. DENV isolates and dengue samples were used to evaluate microarray performance. Our results demonstrate that the probes hybridized specifically to DENV serotypes; with no detection of unspecific signals. This finding provides evidence that specific probes can effectively identify single and double infections in DENV samples

Structural and Lattice-Dynamical Properties of Tb2O3 under Compression: A Comparative Study with Rare Earth and Related Sesquioxides

[EN] We report a joint experimental and theoretical investigation of the high pressure structural and vibrational properties of terbium sesquioxide (Tb2O3). Powder X-ray diffraction and Raman scattering measurements show that cubic Ia (3 ) over bar (C-type) Tb2O3 undergoes two phase transitions up to 25 GPa. We observe a first irreversible reconstructive transition to the monoclinic C2/m (B-type) phase at similar to 7 GPa and a subsequent reversible displacive transition from the monoclinic to the trigonal P (3) over bar m1 (A-type) phase at similar to I-2 GPa. Thus, Tb2O3 is found to follow the well- known C -> B -> A phase transition sequence found in other cubic rare earth sesquioxides with cations of larger atomic mass than Tb. Our ab initio theoretical calculations predict phase transition pressures and bulk moduli for the three phases in rather good agreement with experimental results. Moreover, Raman-active modes of the three phases have been monitored as a function of pressure, while lattice-dynamics calculations have allowed us to confirm the assignment of the experimental phonon modes in the C- and A-type phases as well as to make a tentative assignment of the symmetry of most vibrational modes in the B-type phase. Finally, we extract the bulk moduli and the Raman-active mode frequencies together with their pressure coefficients for the three phases of Tb2O3 . These results are thoroughly compared and discussed in relation to those reported for rare earth and other related sesquioxides as well as with new calculations for selected sesquioxides. It is concluded that the evolution of the volume and bulk modulus of all the three phases of these technologically relevant compounds exhibit a nearly linear trend with respect to the third power of the ionic radii of the cations and that the values of the bulk moduli for the three phases depend on the filling of the f orbitals.The authors are thankful for the financial support of Generalitat Valenciana under Project PROMETEO 2018/123-EFIMAT and of the Spanish Ministerio de Economia y Competitividad under Projects MAT2015-71035-R, MAT2016-75586-C4-2/3/4-P, and FIS2017-2017-83295-P as well as MALTA Consolider Team research network under project RED2018-102612-T. J.A.S. also acknowledges the Ramon y Cajal program for funding support through RYC-2015-17482. A.M. and P.R.-H. acknowledge computing time provided by Red Española de Supercomputación (RES) and the MALTA Consolider Team cluster. HP-XRD experiments were performed at MPSD beamline of Alba Synchrotron (experiment no. 2016071772). We would like to thank Oriol Blázquez (Universitat de Barcelona) for his contribution to the Raman measurements.Ibañez, J.; Sans-Tresserras, JÁ.; Cuenca-Gotor, VP.; Oliva, R.; Gomis, O.; Rodríguez-Hernández, P.; Muñoz, A.... (2020). Structural and Lattice-Dynamical Properties of Tb2O3 under Compression: A Comparative Study with Rare Earth and Related Sesquioxides. Inorganic Chemistry. 59(14):9648-9666. https://doi.org/10.1021/acs.inorgchem.0c00834S964896665914Pan, T.-M., Chen, F.-H., & Jung, J.-S. (2010). Structural and electrical characteristics of high-k Tb2O3 and Tb2TiO5 charge trapping layers for nonvolatile memory applications. Journal of Applied Physics, 108(7), 074501. doi:10.1063/1.3490179Kao, C. H., Liu, K. C., Lee, M. H., Cheng, S. N., Huang, C. H., & Lin, W. K. (2012). High dielectric constant terbium oxide (Tb2O3) dielectric deposited on strained-Si:C. Thin Solid Films, 520(8), 3402-3405. doi:10.1016/j.tsf.2011.10.173Gray, N. W., Prestgard, M. C., & Tiwari, A. (2014). Tb2O3 thin films: An alternative candidate for high-k dielectric applications. Applied Physics Letters, 105(22), 222903. doi:10.1063/1.4903072Geppert, I., Eizenberg, M., Bojarczuk, N. A., Edge, L. F., Copel, M., & Guha, S. (2010). Determination of band offsets, chemical bonding, and microstructure of the (TbxSc1−x)2O3/Si system. Journal of Applied Physics, 108(2), 024105. doi:10.1063/1.3427554Belaya, S. V., Bakovets, V. V., Boronin, A. I., Koshcheev, S. V., Lobzareva, M. N., Korolkov, I. V., & Stabnikov, P. A. (2014). Terbium oxide films grown by chemical vapor deposition from terbium(III) dipivaloylmethanate. Inorganic Materials, 50(4), 379-386. doi:10.1134/s0020168514040037Bakovets, V. V., Belaya, S. V., Lobzareva, M. N., & Maksimovskii, E. A. (2014). Kinetics of terbium oxide film growth from Tb(dpm)3 vapor. Inorganic Materials, 50(6), 576-581. doi:10.1134/s0020168514060016ZINKEVICH, M. (2007). Thermodynamics of rare earth sesquioxides. Progress in Materials Science, 52(4), 597-647. doi:10.1016/j.pmatsci.2006.09.002Warshaw, I., & Roy, R. (1961). POLYMORPHISM OF THE RARE EARTH SESQUIOXIDES1. The Journal of Physical Chemistry, 65(11), 2048-2051. doi:10.1021/j100828a030Brauer, G., & Pfeiffer, B. (1965). Mischphasen aus Praseodym(III)-oxid und Terbium(III)-oxid. Zeitschrift f�r anorganische und allgemeine Chemie, 341(5-6), 237-243. doi:10.1002/zaac.19653410503Shevthenko, A. V., & Lopato, L. M. (1985). DTA method applikation to the highest refractory oxide systems investigation. Thermochimica Acta, 93, 537-540. doi:10.1016/0040-6031(85)85135-2Hoekstra, H. R., & Gingerich, K. A. (1964). High-Pressure B-Type Polymorphs of Some Rare-Earth Sesquioxides. Science, 146(3648), 1163-1164. doi:10.1126/science.146.3648.1163Sawyer, J. O., Hyde, B. G., & Eyring, L. (1965). Pressure and Polymorphism in the Rare Earth Sesquioxides. Inorganic Chemistry, 4(3), 426-427. doi:10.1021/ic50025a043Manjón, F., Sans, J., Ibáñez, J., & Pereira, A. (2019). Pressure-Induced Phase Transitions in Sesquioxides. Crystals, 9(12), 630. doi:10.3390/cryst9120630Jiang, S., Liu, J., Lin, C., Bai, L., Xiao, W., Zhang, Y., … Tang, L. (2010). Pressure-induced phase transition in cubic Lu2O3. Journal of Applied Physics, 108(8), 083541. doi:10.1063/1.3499301Lin, C.-M., Wu, K.-T., Hung, T.-L., Sheu, H.-S., Tsai, M.-H., Lee, J.-F., & Lee, J.-J. (2010). Phase transitions in under high pressure. Solid State Communications, 150(33-34), 1564-1569. doi:10.1016/j.ssc.2010.05.046Meyer, C., Sanchez, J. P., Thomasson, J., & Itié, J. P. (1995). Mössbauer and energy-dispersive x-ray-diffraction studies of the pressure-induced crystallographic phase transition inC-typeYb2O3. Physical Review B, 51(18), 12187-12193. doi:10.1103/physrevb.51.12187Pandey, S. D., Samanta, K., Singh, J., Sharma, N. D., & Bandyopadhyay, A. K. (2013). Anharmonic behavior and structural phase transition in Yb2O3. AIP Advances, 3(12), 122123. doi:10.1063/1.4858421Sahu, P. C., Lonappan, D., & Shekar, N. V. C. (2012). High Pressure Structural Studies on Rare-Earth Sesquioxides. Journal of Physics: Conference Series, 377, 012015. doi:10.1088/1742-6596/377/1/012015Irshad, K. A., Anees, P., Sahoo, S., Sanjay Kumar, N. R., Srihari, V., Kalavathi, S., & Chandra Shekar, N. V. (2018). Pressure induced structural phase transition in rare earth sesquioxide Tm2O3: Experiment and ab initio calculations. Journal of Applied Physics, 124(15), 155901. doi:10.1063/1.5049223Yan, D., Wu, P., Zhang, S. P., Liang, L., Yang, F., Pei, Y. L., & Chen, S. (2013). Assignments of the Raman modes of monoclinic erbium oxide. Journal of Applied Physics, 114(19), 193502. doi:10.1063/1.4831663Ren, X., Yan, X., Yu, Z., Li, W., & Wang, L. (2017). Photoluminescence and phase transition in Er2O3 under high pressure. Journal of Alloys and Compounds, 725, 941-945. doi:10.1016/j.jallcom.2017.07.219Guo, Q., Zhao, Y., Jiang, C., Mao, W. L., Wang, Z., Zhang, J., & Wang, Y. (2007). Pressure-Induced Cubic to Monoclinic Phase Transformation in Erbium Sesquioxide Er2O3. Inorganic Chemistry, 46(15), 6164-6169. doi:10.1021/ic070154gLonappan, D., Shekar, N. V. C., Ravindran, T. R., & Sahu, P. C. (2010). High-pressure phase transition in Ho2O3. Materials Chemistry and Physics, 120(1), 65-67. doi:10.1016/j.matchemphys.2009.10.022Jiang, S., Liu, J., Li, X., Bai, L., Xiao, W., Zhang, Y., … Tang, L. (2011). Phase transformation of Ho2O3at high pressure. Journal of Applied Physics, 110(1), 013526. doi:10.1063/1.3603027Pandey, S. D., Samanta, K., Singh, J., Sharma, N. D., & Bandyopadhyay, A. K. (2014). Raman scattering of rare earth sesquioxide Ho2O3: A pressure and temperature dependent study. Journal of Applied Physics, 116(13), 133504. doi:10.1063/1.4896832Yan, X., Ren, X., He, D., Chen, B., & Yang, W. (2014). Mechanical behaviors and phase transition of Ho2O3nanocrystals under high pressure. Journal of Applied Physics, 116(3), 033507. doi:10.1063/1.4890341Sharma, N. D., Singh, J., Dogra, S., Varandani, D., Poswal, H. K., Sharma, S. M., & Bandyopadhyay, A. K. (2011). Pressure-induced anomalous phase transformation in nano-crystalline dysprosium sesquioxide. Journal of Raman Spectroscopy, 42(3), 438-444. doi:10.1002/jrs.2720Jiang, S., Liu, J., Lin, C., Bai, L., Zhang, Y., Li, X., … Wang, H. (2013). Structural transformations in cubic Dy2O3 at high pressures. Solid State Communications, 169, 37-41. doi:10.1016/j.ssc.2013.06.027Chen, H., He, C., Gao, C., Ma, Y., Zhang, J., Wang, X., … Zou, G. (2007). The structural transition of Gd2O3nanoparticles induced by high pressure. Journal of Physics: Condensed Matter, 19(42), 425229. doi:10.1088/0953-8984/19/42/425229Hai-Yong, C., Chun-Yuan, H., Chun-Xiao, G., Jia-Hua, Z., Shi-Yong, G., Hong-Liang, L., … Guang-Tian, Z. (2007). Structural Transition of Gd 2 O 3  :Eu Induced by High Pressure. Chinese Physics Letters, 24(1), 158-160. doi:10.1088/0256-307x/24/1/043Zhang, F. X., Lang, M., Wang, J. W., Becker, U., & Ewing, R. C. (2008). Structural phase transitions of cubicGd2O3at high pressures. Physical Review B, 78(6). doi:10.1103/physrevb.78.064114Dilawar, N., Varandani, D., Mehrotra, S., Poswal, H. K., Sharma, S. M., & Bandyopadhyay, A. K. (2008). Anomalous high pressure behaviour in nanosized rare earth sesquioxides. Nanotechnology, 19(11), 115703. doi:10.1088/0957-4484/19/11/115703Bai, L., Liu, J., Li, X., Jiang, S., Xiao, W., Li, Y., … Zhang, D. (2009). Pressure-induced phase transformations in cubic Gd2O3. Journal of Applied Physics, 106(7), 073507. doi:10.1063/1.3236580Zou, X., Gong, C., Liu, B., Li, Q., Li, Z., Liu, B., … Song, H. (2011). X-ray diffraction of cubic Gd2 O3 /Er under high pressure. physica status solidi (b), 248(5), 1123-1127. doi:10.1002/pssb.201000706Zhang, C. C., Zhang, Z. M., Dai, R. C., Wang, Z. P., & Ding, Z. J. (2011). High Pressure Luminescence and Raman Studies on the Phase Transition of Gd2O3:Eu3+ Nanorods. Journal of Nanoscience and Nanotechnology, 11(11), 9887-9891. doi:10.1166/jnn.2011.5228Yang, X., Li, Q., Liu, Z., Bai, X., Song, H., Yao, M., … Liu, B. (2013). Pressure-Induced Amorphization in Gd2O3/Er3+ Nanorods. The Journal of Physical Chemistry C, 117(16), 8503-8508. doi:10.1021/jp312705uChen, G., Haire, R. G., & Peterson, J. R. (1991). Effect of pressure on cubic (C-type) Eu2O3studied via Eu3+luminescence. High Pressure Research, 6(6), 371-377. doi:10.1080/08957959208201045Chen, G., Stump, N. ., Haire, R. ., & Peterson, J. . (1992). Study of the phase behavior of Eu2O3 under pressure via luminescence of Eu3+. Journal of Alloys and Compounds, 181(1-2), 503-509. doi:10.1016/0925-8388(92)90347-cDilawar, N., Varandani, D., Pandey, V. P., Kumar, M., Shivaprasad, S. M., Sharma, P. K., & Bandyopadhyay, A. K. (2006). Structural Transition in Nanostructured Eu2O3 Under High Pressures. Journal of Nanoscience and Nanotechnology, 6(1), 105-113. doi:10.1166/jnn.2006.17913Sheng, J., Li-Gang, B., Jing, L., Wan-Sheng, X., Xiao-Dong, L., Yan-Chun, L., … Li-Rong, Z. (2009). The Phase Transition of Eu 2 O 3 under High Pressures. Chinese Physics Letters, 26(7), 076101. doi:10.1088/0256-307x/26/7/076101Irshad, K. A., Chandra Shekar, N. V., Srihari, V., Pandey, K. K., & Kalavathi, S. (2017). High pressure structural phase transitions in Ho: Eu2O3. Journal of Alloys and Compounds, 725, 911-915. doi:10.1016/j.jallcom.2017.07.224Yu, Z., Wang, Q., Ma, Y., & Wang, L. (2017). X-ray diffraction and spectroscopy study of nano-Eu2O3 structural transformation under high pressure. Journal of Alloys and Compounds, 701, 542-548. doi:10.1016/j.jallcom.2017.01.143Guo, Q., Zhao, Y., Jiang, C., Mao, W. L., & Wang, Z. (2008). Phase transformation in Sm2O3 at high pressure: In situ synchrotron X-ray diffraction study and ab initio DFT calculation. Solid State Communications, 145(5-6), 250-254. doi:10.1016/j.ssc.2007.11.019Jiang, S., Liu, J., Lin, C., Li, X., & Li, Y. (2013). High-pressure x-ray diffraction and Raman spectroscopy of phase transitions in Sm2O3. Journal of Applied Physics, 113(11), 113502. doi:10.1063/1.4795504Liu, D., Lei, W., Li, Y., Ma, Y., Hao, J., Chen, X., … Zou, G. (2009). High-Pressure Structural Transitions of Sc2O3by X-ray Diffraction, Raman Spectra, and Ab Initio Calculations. Inorganic Chemistry, 48(17), 8251-8256. doi:10.1021/ic900889vYusa, H., Tsuchiya, T., Sata, N., & Ohishi, Y. (2009). High-Pressure Phase Transition to the Gd2S3 Structure in Sc2O3: A New Trend in Dense Structures in Sesquioxides. Inorganic Chemistry, 48(16), 7537-7543. doi:10.1021/ic9001253Ovsyannikov, S. V., Bykova, E., Bykov, M., Wenz, M. D., Pakhomova, A. S., Glazyrin, K., … Dubrovinsky, L. (2015). Structural and vibrational properties of single crystals of Scandia, Sc2O3 under high pressure. Journal of Applied Physics, 118(16), 165901. doi:10.1063/1.4933391Husson, E., Proust, C., Gillet, P., & Itié, J. . (1999). Phase transitions in yttrium oxide at high pressure studied by Raman spectroscopy. Materials Research Bulletin, 34(12-13), 2085-2092. doi:10.1016/s0025-5408(99)00205-6Bai, X., Song, H. W., Liu, B. B., Hou, Y. Y., Pan, G. H., & Ren, X. G. (2008). Effects of High Pressure on the Luminescent Properties of Nanocrystalline and Bulk Y2O3:Eu3+. Journal of Nanoscience and Nanotechnology, 8(3), 1404-1409. doi:10.1166/jnn.2008.18204Jovanić, B. R., Dramićanin, M., Viana, B., Panić, B., & Radenković, B. (2008). High-pressure optical studies of Y2O3:Eu3+nanoparticles. Radiation Effects and Defects in Solids, 163(12), 925-931. doi:10.1080/10420150802082705Wang, L., Pan, Y., Ding, Y., Yang, W., Mao, W. L., Sinogeikin, S. V., … Mao, H. (2009). High-pressure induced phase transitions of Y2O3 and Y2O3:Eu3+. Applied Physics Letters, 94(6), 061921. doi:10.1063/1.3082082Wang, L., Yang, W., Ding, Y., Ren, Y., Xiao, S., Liu, B., … Mao, H. (2010). Size-Dependent Amorphization of NanoscaleY2O3at High Pressure. Physical Review Letters, 105(9). doi:10.1103/physrevlett.105.095701Halevy, I., Carmon, R., Winterrose, M. L., Yeheskel, O., Tiferet, E., & Ghose, S. (2010). Pressure-induced structural phase transitions in Y2O3sesquioxide. Journal of Physics: Conference Series, 215, 012003. doi:10.1088/1742-6596/215/1/012003Dai, R. C., Zhang, Z. M., Zhang, C. C., & Ding, Z. J. (2010). Photoluminescence and Raman Studies of Y2O3:Eu3+ Nanotubes Under High Pressure. Journal of Nanoscience and Nanotechnology, 10(11), 7629-7633. doi:10.1166/jnn.2010.2752DAI, R., WANG, Z., ZHANG, Z., & DING, Z. (2010). Photoluminescence study of SiO2 coated Eu3+:Y2O3 core-shells under high pressure. Journal of Rare Earths, 28, 241-245. doi:10.1016/s1002-0721(10)60275-xYusa, H., Tsuchiya, T., Sata, N., & Ohishi, Y. (2010). Dense Yttria Phase Eclipsing the A-Type Sesquioxide Structure: High-Pressure Experiments and ab initio Calculations. Inorganic Chemistry, 49(10), 4478-4485. doi:10.1021/ic100042zBose, P. P., Gupta, M. K., Mittal, R., Rols, S., Achary, S. N., Tyagi, A. K., & Chaplot, S. L. (2012). High Pressure Phase Transitions in Yttria, Y2O3. Journal of Physics: Conference Series, 377, 012036. doi:10.1088/1742-6596/377/1/012036Srivastava, A. M., Renero-Lecuna, C., Santamaría-Pérez, D., Rodríguez, F., & Valiente, R. (2014). Pressure-induced Pr3+ 3P0 luminescence in cubic Y2O3. Journal of Luminescence, 146, 27-32. doi:10.1016/j.jlumin.2013.09.028Yamanaka, T., Nagai, T., Okada, T., & Fukuda, T. (2005). Structure change of Mn2O3under high pressure and pressure-induced transition. Zeitschrift für Kristallographie - Crystalline Materials, 220(11), 938-945. doi:10.1524/zkri.2005.220.11_2005.938Santillán, J., Shim, S.-H., Shen, G., & Prakapenka, V. B. (2006). High-pressure phase transition in Mn2O3: Application for the crystal structure and preferred orientation of the CaIrO3type. Geophysical Research Letters, 33(15). doi:10.1029/2006gl026423Shim, S.-H., LaBounty, D., & Duffy, T. S. (2011). Raman spectra of bixbyite, Mn2O3, up to 40 GPa. Physics and Chemistry of Minerals, 38(9), 685-691. doi:10.1007/s00269-011-0441-4Hong, F., Yue, B., Hirao, N., Liu, Z., & Chen, B. (2017). Significant improvement in Mn2O3 transition metal oxide electrical conductivity via high pressure. Scientific Reports, 7(1). doi:10.1038/srep44078Yusa, H., Tsuchiya, T., Sata, N., & Ohishi, Y. (2008). Rh2O3(II)-type structures inGa2O3andIn2O3under high pressure: Experiment and theory. Physical Review B, 77(6). doi:10.1103/physrevb.77.064107Liu, D., Lei, W. W., Zou, B., Yu, S. D., Hao, J., Wang, K., … Zou, G. T. (2008). High-pressure x-ray diffraction and Raman spectra study of indium oxide. Journal of Applied Physics, 104(8), 083506. doi:10.1063/1.2999369Qi, J., Liu, J. F., He, Y., Chen, W., & Wang, C. (2011). Compression behavior and phase transition of cubic In2O3 nanocrystals. Journal of Applied Physics, 109(6), 063520. doi:10.1063/1.3561363Garcia-Domene, B., Ortiz, H. M., Gomis, O., Sans, J. A., Manjón, F. J., Muñoz, A., … Tyagi, A. K. (2012). High-pressure lattice dynamical study of bulk and nanocrystalline In2O3. Journal of Applied Physics, 112(12), 123511. doi:10.1063/1.4769747García-Domene, B., Sans, J. A., Gomis, O., Manjón, F. J., Ortiz, H. M., Errandonea, D., … Segura, A. (2014). Pbca-Type In2O3: The High-Pressure Post-Corundum phase at Room Temperature. The Journal of Physical Chemistry C, 118(35), 20545-20552. doi:10.1021/jp5061599Gomis, O., Santamaría-Pérez, D., Ruiz-Fuertes, J., Sans, J. A., Vilaplana, R., Ortiz, H. M., … Mollar, M. (2014). High-pressure structural and elastic properties of Tl2O3. Journal of Applied Physics, 116(13), 133521. doi:10.1063/1.4897241Mcclure, J. P. High Pressure Phase Transistions in the Lanthanide Sesquioxides. Ph.D. Thesis, University of Nevada, Las Vegas, 2009, pp 1–154.Hirosaki, N., Ogata, S., & Kocer, C. (2003). Ab initio calculation of the crystal structure of the lanthanide Ln2O3 sesquioxides. Journal of Alloys and Compounds, 351(1-2), 31-34. doi:10.1016/s0925-8388(02)01043-5Marsella, L., & Fiorentini, V. (2004). Structure and stability of rare-earth and transition-metal oxides. Physical Review B, 69(17). doi:10.1103/physrevb.69.172103Petit, L., Svane, A., Szotek, Z., & Temmerman, W. M. (2005). First-principles study of rare-earth oxides. Physical Review B, 72(20). doi:10.1103/physrevb.72.205118WU, B., ZINKEVICH, M., WANG, C., & ALDINGER, F. (2006). Ab initio energetic study of oxide ceramics with rare-earth elements. Rare Metals, 25(5), 549-555. doi:10.1016/s1001-0521(06)60097-1Singh, N., Saini, S. M., Nautiyal, T., & Auluck, S. (2006). Electronic structure and optical properties of rare earth sesquioxides (R2O3, R=La, Pr, and Nd). Journal of Applied Physics, 100(8), 083525. doi:10.1063/1.2353267Mikami, M., & Nakamura, S. (2006). Electronic structure of rare-earth sesquioxides and oxysulfides. Journal of Alloys and Compounds, 408-412, 687-692. doi:10.1016/j.jallcom.2005.01.068Wu, B., Zinkevich, M., Aldinger, F., Wen, D., & Chen, L. (2007). Ab initio study on structure and phase transition of A- and B-type rare-earth sesquioxides Ln2O3 (Ln=La–Lu, Y, and Sc) based on density function theory. Journal of Solid State Chemistry, 180(11), 3280-3287. doi:10.1016/j.jssc.2007.09.022Rahm, M., & Skorodumova, N. V. (2009). Phase stability of the rare-earth sesquioxides under pressure. Physical Review B, 80(10). doi:10.1103/physrevb.80.104105Jiang, H., Gomez-Abal, R. I., Rinke, P., & Scheffler, M. (2009). Localized and Itinerant States in Lanthanide Oxides United byGW @ LDA+U. Physical Review Letters, 102(12). doi:10.1103/physrevlett.102.126403Gillen, R., Clark, S. J., & Robertson, J. (2013). Nature of the electronic band gap in lanthanide oxides. Physical Review B, 87(12). doi:10.1103/physrevb.87.125116Richard, D., Muñoz, E. L., Rentería, M., Errico, L. A., Svane, A., & Christensen, N. E. (2013). AbinitioLSDA and LSDA+Ustudy of pure and Cd-doped cubic lanthanide sesquioxides. Physical Review B, 88(16). doi:10.1103/physrevb.88.165206Richard, D., Errico, L. A., & Rentería, M. (2016). Structural properties and the pressure-induced C → A phase transition of lanthanide sesquioxides from DFT and DFT + U calculations. Journal of Alloys and Compounds, 664, 580-589. doi:10.1016/j.jallcom.2015.12.236Ogawa, T., Otani, N., Yokoi, T., Fisher, C. A. J., Kuwabara, A., Moriwake, H., … Takata, M. (2018). Density functional study of the phase stability and Raman spectra of Yb2O3, Yb2SiO5 and Yb2Si2O7 under pressure. Physical Chemistry Chemical Physics, 20(24), 16518-16527. doi:10.1039/c8cp02497aPathak, A. K., & Vazhappilly, T. (2018). Ab Initio Study on Structure, Elastic, and Mechanical Properties of Lanthanide Sesquioxides. physica status solidi (b), 255(6), 1700668. doi:10.1002/pssb.201700668Lonappan, D., Chandra Shekar, N. V., Sahu, P. C., Kumar, J., Paul, R., & Paul, P. (2010). Unusually large structural stability of terbium oxide phase under high pressure. Journal of Alloys and Compounds, 490(1-2), 47-49. doi:10.1016/j.jallcom.2009.10.068Veber, P., Velázquez, M., Gadret, G., Rytz, D., Peltz, M., & Decourt, R. (2015). Flux growth at 1230 °C of cubic Tb2O3single crystals and characterization of their optical and magnetic properties. CrystEngComm, 17(3), 492-497. doi:10.1039/c4ce02006eIbáñez,