197,766 research outputs found
Drimeotus osoiensis Moldovan 2000, n. sp.
No full text<i>Drimeotus osoiensis</i> n. sp. <p>LOCALITÉ- TYPE. — Roumanie, Monts Padurea Craiului, grotte d’Osoi (10 sur la Fig. 1).</p> <p>MATÉRIEL- TYPE. — Roumanie, Monts Padurea Craiului, grotte d’Osoi, 3. XI.1990, leg. O. Moldovan, 1 holotype. — Roumanie, Monts Padurea Craiului, grotte d’Osoi, 24. IV.1996, leg. O. Moldovan et G. Rajka, 27, 19.</p> <p>ÉTYMOLOGIE. — Cette espèce porte le nom de la grotte de provenance.</p> <p> <i>Description</i></p> <p> Forme générale: courte et large, très proche de celle de l’espèce décrite ci-dessus, mais plus courte que chez <i>D. kovacsi</i>.</p> <p>Longueur du corps: 4,2 mm (entre 4,1 mm et 4,4 mm) pour les mâles et 4,4 mm (entre 4,5 mm et 4,3 mm) pour les femelles.</p> <p> Pronotum: sinuosité des côtés du pronotum très faible; sa base est élargie, aussi bien chez les mâles que chez les femelles. Mais, par rapport à <i>D. kovacsi</i>, les mâles ont le pronotum plus étroit. Élytres: chez les mâles, plus courts et plus étroits que chez <i>D. kovacsi</i>. Le pronotum et les élytres des femelles ne présentent pas des différences morphologiques importantes entre les deux espèces faisant partie du sixième groupe.</p> <p>Antennes: peu allongées chez les mâles, avec l’article 8 court, tandis que les femelles ont des antennes plus longues.</p> <p> Organe copulateur (Fig. 3J): plus court que chez <i>D. racovitai</i>, d’ailleurs le plus court dans le cadre du sous-genre, avec l’invagination très peu profonde. Ce dernier caractère est celui qui fait la différence majeure entre les espèces du sixième groupe et les autres espèces de <i>Drimeotus</i> s.s., tandis qu’à l’intérieur du groupe, la nouvelle espèce se distingue de <i>D. kovacsi</i> par la configuration des faisceaux d’épines du sac interne (Fig. 6J) qui sont plus courts.</p>Published as part of <i>Moldovan, Oana Teodora, 2000, Révision de Drimeotus s. s. Miller, 1856 (Coleoptera, Cholevidae, Leptodirinae) de Transylvanie (Roumanie) avec description de deux nouvelles espèces et clé de détermination des taxa, pp. 139-152 in Zoosystema 22 (1)</i> on page 150, DOI: <a href="http://zenodo.org/record/5394905">10.5281/zenodo.5394905</a>
A free trade area between the Repbulic of Moldova and the European Union: feasibility, perspectives and potential impact.
No full textThis publication has been launched within the project “European Union – Republic of Moldova Trade Relations: Current Situation and Perspectives for Enhancement”. The project is sponsored by the Moldova-Soros Foundation. The major goal of this project is to help Moldovan government formulate and adopt balanced and sound positions for the future negotiations with the European Commission, so that an “enhanced trade regime” contributing to the economic modernization of the country and economic integration with EU is achieved.free trade agreement; feasibility study; Moldova; European Union;
Is Moldova Ready to Grow? Assessment of Post-crisis Policies (1999-2000)
No full textThe efforts to stabilize the Moldovan economy after the crisis of 1998 have been largely successful. The country avoided international default as current account position radically improved, cooperation with international financial institutions was re-established and a significant primary fiscal surplus was achieved. As a result, the exchange rate was stabilised and inflation substantially reduced. Moreover, several important structural reforms were implemented and privatisation of key-industries pursued with much more determination than previously. However, only economic growth would bring real solutions to the persistent problems of external and internal imbalances of the Moldovan economy and would allow the country to face its heavy debt burden in the future. Unfortunately, prospects for sustainable growth remain weak, as the most important issues that constrain private entrepreneurship and investments have not been effectively tackled. These issues include: lack of territorial integrity, ineffective legal system, widespread corruption and rent seeking. It is unlikely that these problems can be solved until the Moldovan parliament assumes full ownership of reform process.Moldova, post-crisis
Multigrid sequential data assimilation for the Large Eddy Simulation of a massively separated bluff-body flow
No full textThe potential of sequential Data Assimilation (DA) techniques to improve the numerical accuracy of Large Eddy Simulation (LES) performed on coarse grid is assessed. Specifically, this paper evaluates the performance of the Multigrid Ensemble Kalman Filter (MGEnKF) method, recently introduced by Moldovan, Lehnasch, Cordier and Meldi (Journal of Computational Physics, 2021). The international benchmark referred to as BARC (Benchmark of the Aerodynamics of a Rectangular 5:1 Cylinder) is chosen as test configuration, as it includes several complex flow dynamics encountered in turbulence studies. The results for the statistical moments of the velocity and pressure flow field show that the data-driven techniques employed are able to significantly improve the predictive features of the solver for reduced grid resolution. In addition, it was observed that, despite the sparse and asymmetric distribution of observation in the data-driven process, the DA augmented LES exhibits symmetric statistics and a significantly improved accuracy also far from the observation zone
Personalised Multimedia Educational Content for M-learning Environments
No full textI, Arghir-Nicolae Moldovan, declare that this thesis, submitted by me i
Moldova's European Choice: ‘Between Two Stools’?
No full textThe article examines EU–Moldovan relations from the perspective of the external governance framework. It reveals some considerable progress in the procedural engagement of both parties. However, the internal instability experienced by Moldova in 2009 is seen to have disrupted these relations, stalling further negotiations and even questioning Moldova's true commitment to Europe. To understand this ostensibly sudden change in Moldova's allegiance to Europe, it is argued that analysis needs to go beyond conventional governance framework(s). Premised on the notion of ‘constitutive boundaries’ a ‘partnership’ perspective offers a more nuanced understanding of the boundaries of ‘the other’, thus revealing the salience of geopolitics and culture in Moldova's relations with the outside world
THE INFREP EUROPEAN VLF/LF RADIO MONITORING NETWORK - PRESENT STATUS AND PRELIMINARY RESULTS OF THE ROMANIAN MONITORING SYSTEM
No full textThe paper presents the Romanian VLF / LF monitoring system consisting in a radio receiver - made by Elettronika S.R.L. (Italy) and provided by the Bari University - and the infrastructure that is necessary to record and transmit the collected data. This system is a part of the international initiative INFREP. Through this initiative, originated in Italy, VLF / LF radio receivers are deployed in different locations in Europe. Each one is monitoring up to ten different transmissions of radio stations across the continent. Information on electromagnetic fields' intensities created by transmitters at each receiving site and gathered from this network are indicating the quality of the propagation along the paths between the receivers and transmitters. Studying the ionosphere influences on the electromagnetic waves' propagation along a certain path is a method to put into evidence possible modifications of ionosphere lower structure and composition as earthquakes' precursor.
The VLF / LF receiver installed in Romania was put into operation in February 2009 and has proved its utility in the case of Abruzzo earthquake that occurred on 6th of April 2009 (M-w = 6.3). Since then, the receiver was relocated from Bucharest to the Black-Sea shore (Dobrogea Seismologic Observatory). Changing the receiving site produced unsatisfactory monitoring data, characterized by large fluctuations of the received signals' intensities. Trying to understand this behavior has led to the conclusion that the electric component of the electromagnetic field was possibly influenced by the local atmospheric conditions (as aerosols' concentrations could be). Starting from this observation we have run some tests which have indicated that a loop-type antenna is more appropriate than a vertical antenna, especially for highly electric-field polluted environments. Very good results were obtained with this new configuration, even in the site located at the Black-Sea shore. Future improvements of the receiver analog front-end are still possible in order to get better monitoring data by rejecting the off-band noise induced by the aerial high-voltage lines that are surrounding the site, so that for us to accomplish the best achievable surveillance in VLF / LF bands, related to seismo-electromagnetic phenomena
Analysis of the LF data collected by the European radio network during one year
No full textDuring 2008 a radio receiver was developed by the Italian factory Elettronika. The receiver is an equipment working in VLF (15-60 kHz) and LF (150-300 kHz) bands. It can monitor 10 frequencies distributed in these bands and,
for each of them, saves the electric field intensity. During 2009 six receivers were installed for the realization of
the “European VLF/LF network”. Actually, two of them are into operation in Italy and one in Greece, Turkey, Portugal and Romania, respectively; a sampling rate of 1 minute is used. The LF radio data collected from July 2009
to December 2010 have been analysed. At first, for each radio signal, the day time data and the night time ones
were separated. Taking into account that the LF signals are characterized by the ground wave and the sky wave
propagation modes, the day data are related to the ground wave and the night data to the sky wave. In a first analysis
the effect of the solar activity and of the thunderstorm activity was pointed out in the different trends. Then the
wavelet analysis was applied on the same trends. Some anomalies probably related to earthquakes occurred nearby
some transmitter-receiver path with M>5 were revealed
Microstructure and Mechanical Behavior of Modern Universal-Chromatic and Bulk-Fill Resin-Based Composites Developed to Simplify Dental Restorative Procedures
No full textOne of the recent trends in the development of resin-based composites (RBCs) focuses on universal coloring to avoid time-consuming color matching and RBC layering for a clinically appropriate esthetic impact. We evaluated an experimental material for posterior restorations combining universal coloring with the possibility of bulk-fill placement. Clinically established materials were analyzed as a reference, including a bulk-fill and a universal chromatic RBC. Microstructural features were described using scanning electron microscopy and related to macroscopic and microscopic mechanical behavior. Standards to be met before market launch were supplemented by fractography, Weibull analysis, and aging behavior assessment. Quasi-static and viscoelastic behavior were evaluated on a microscopic scale, incorporating a large number of parameters and increasingly aggressive immersion media. All materials complied with the standard requirements even after aging. The latter had little impact on the measured parameters, except for strength. Strength, modulus of elasticity, and hardness parameters on the one hand and damping behavior on the other were mutually exclusive. Despite considerable differences in the microstructure and type of filler, an increased filler amount remained critical for better mechanical properties. The lower proportion of inorganic fillers was directly transferred to the elastic modulus values, which, in turn, restricts the experimental material in its clinical applications to smaller occlusal fillings
A possible radio anomaly observed on the occasion of the MW=6.0 earthquake occurred in Dodecanese islands at the end of January 2020
No full textSince 2009, several VLF/LF radio receivers have been installed throughout Europe in order to realize a European radio network for studying the radio precursors of earthquakes, called the INFREP network. The current network has nine VLF/LF receiving stations, two in Romania and Greece, one in Italy, Austria, Portugal, Cyprus, and Serbia. The receivers can measure with 1 min sampling rate the intensity of 10 radio signals in the band VLF (10-50 kHz) and LF (150-300 kHz). The scope of existing transmitters is manifold, e.g. they are used for radio broadcast (LF), for radio- navigation or time signals and mainly for military purposes in the VLF range. At the end of January 2020 an intense seismic crisis occurred in Dodecanese Islands; the main event (Mw= 6.0) occurred on January 30. This seismic activity occurred in the "sensitive" area of the INFREP network. The analysis of the data collected by INFREP receivers has revealed clear anomalies in three VLF signals appearing some days before the main earthquake. The anomalies appear in the trends collected by the Cyprus receiver and the epicenter is inside the 5th Fresnel ellipses defined by transmitters- receiver. Here we report the data analysis and we present in detail the anomalies. The possibility that they are precursors of the quoted earthquake seems significant.
Biagi, P.F., Colella, R., Schiavulli, L., Ermini, A., Boudjada, M., Eichelberger, H., Schwingenschuh, K., Katzis, K., Contadakis, M.E., Skeberis, C., Moldovan, I.A. and Bezzeghoud, M. (2019) The INFREP Network: Present Situation and Recent Results. Open Journal of Earthquake Research,8, 101-115. https://doi.org/10.4236/ojer.2019.8200
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