Online hotel ratings and its influence on hotel room rates: the case of Lisbon, Portugal by Conceição Castro, Fernanda A. Ferreira

“…The aim of this paper is to analyze how prices for a hotel stay can be influenced by some quality signaling factors, as star rating and online consumer’s ratings (location, cleanliness, comfort, facilities, staff and value for money, available on Booking.com), the volume of consumer’s comments and the availability of rooms in Lisbon. …”
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Effect Analysis of Optical Masking Algorithm for GEO Space Debris Detection by Sijie Kong, Jin Zhou, Wenli Ma

“…A method with high detection rate, low false-alarm rate, and low computational cost is presented for removing stars and noise and detecting space debris with signal-to-noise ratio (SNR>3) in consecutive raw frames. …”
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Galaxy Evolution in a Pilot Survey up to z=1 and CDM Halos by E. Giraud, J. Melnick, Q.-S. Gu, H. Quintana, F. Selman, I. Toledo, P. Zelaya

“…Our observations indicate that at z⩽1 star formation and hierarchical structure formation of CDM halos are not in phase.…”
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On the structure of quasi-Keplerian accretion discs surrounding millisecond X-ray pulsars by Isaac, Habumugisha, Solomon, B. Tessema, Edward, Jurua, Simon, K. Anguma

“…In our model, the MSP-disc interaction results into magnetic and material torques, such that for a given dynamo ( ) and quasi-Keplerian (n) parameter, we obtained enhanced spin-up and spin-down torques for a chosen star spin period. Results obtained reveal that PGF results into episodic torque reversals that contribute to spinning-up or spinning-down of a neutron star, mainly from the inner region. …”
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Time-Frequency Feature Extraction of HRRP Using AGR and NMF for SAR ATR by Xinzheng Zhang, Zhouyong Liu, Shujun Liu, Guojun Li

“…To demonstrate the performance of the proposed approach, experiments are performed in the 10-target MSTAR public dataset. The results support the effectiveness of the proposed technique for SAR automatic target recognition (ATR).…”
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Deep Swift/UVOT Observations of GOODS-N and the Evolution of the Ultraviolet Luminosity Function at 0.2 < z < 1.2 by Alexander Belles, Caryl Gronwall, Michael H. Siegel, Robin Ciardullo, Mat J. Page

“…From the LF fits in various redshift bins, we calculate the star formation rate density as a function of redshift and find evolution consistent with past works. …”
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Timescales of Solar System Formation Based on Al–Ti Isotope Correlation by Supernova Ejecta by Tsuyoshi Iizuka, Yuki Hibiya, Satoshi Yoshihara, Takehito Hayakawa

“…Our results imply that the Sun was born in association with a ∼25 M _ʘ star.…”
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Effect analysis of small‐problem‐based teaching method for improving students’ problem‐solving ability in the experiment of power electronics course by Guopeng Zhao

“…Furthermore, for comparison of the source harmonic current and the maximum line current for three types of three‐phase ac voltage‐regulating circuits with different connection modes―the three‐phase four‐wire star connection mode, the three‐phase three‐wire star connection mode and the branch‐controlled triangle connection mode―are used as an example to explain the proposed teaching method. …”
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Performance evaluation methods in the hotel industry by Catarina Rosa Nunes, Maria João Cardoso Vieira Machado

“…To achieve this goal we conducted surveys and interviews with financial officers of 275 four and five star hotels located in Portugal. The results support the conclusion that there is a link between hotel characteristics and performance evaluation methods used.…”
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The Role of Natural Resources in the Ecotourism Development – Residents’ Perceptions in Subotica (Northern Serbia) by Aleksandra Vujko, Marko D. Petrović, Danica Gostović, Milan Radovanović, Darko Vuković

“…These areas are: Palić Nature Park, Ludaško jezero Special Nature Reserve, Selevenjske pustare Special Nature Reserve and Subotička peščara Protected Landscape of Exceptional Distinction. …”
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X-ray emission from hot gas and XRBs in the NGC 5846 galaxy by Kyadampure Anil, Vagshette Nilkanth, Patil Madhav

“…X-ray imaging analysis revealed the presence of 90 discrete X-ray point sources, spectral study of which depicted that the majority of them are LMXBs with a neutron star accretor. Among 90, only one source exhibits an X-ray luminosity greater than 1039ergs−11{0}^{39}\hspace{0.33em}{\rm{erg}}\hspace{0.33em}{{\rm{s}}}^{-1}, exceeding the Eddington limit for a canonical mass of a neutron star and occupies a position in the hard region of the X-ray color–color plot. …”
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Constructing stellar solutions with spherical symmetry through quadratic anisotropy in f(Q) gravity by R. Kumar, S. K. Maurya, A. Errehymy, A. Jaiswal, K. Myrzakulov, S. Sharma

“…Abstract This article examines anisotropic models to characterize compact stars (CSs) in the context of modified f(Q) gravity theory. …”
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Fatigue and associated factors in multiple sclerosis patients in Latvia by S. Šetlere, A. Abelsen, D. Pastare, A. Millers

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ERGONOMIA, CIÊNCIA DO TRABALHO, PONTO DE VISTA DO TRABALHO: A CIÊNCIA DO TRABALHO NUMA PERSPECTIVA HISTÓRICA by Francisco de Paula Antunes Lima

“…A origem histórica da ciência do trabalho e da ergonomia está na busca de uma medida objetiva e científica para as trocas econô- micas e sociais, que se expressam na definição de uma justa remuneração da força de trabalho e da fixação de uma jornada de trabalho normal.…”
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Imaging exoplanets with coronagraphic instruments by Galicher, Raphaël, Mazoyer, Johan

“…Exoplanetary science is a very active field of astronomy nowadays, with questions still opened such as how planetary systems form and evolve (occurrence, process), why such a diversity of exoplanets is observed (mass, radius, orbital parameters, temperature, composition), and what are the interactions between planets, circumstellar disk and their host star. Several complementary methods are used for the detection of exoplanets. …”
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Multiepoch Observations of the Nearby Spiral Galaxy NGC 3938 with the Chandra X-Ray Observatory by Siddhi Raut, Eric M. Schlegel, Thomas G. Pannuti, Brannon W. Jones, Jacobo Matallana

“…The luminosity function of NGC 3938 is compared to a recent compilation of 38 galaxies, and we identify a potentially significant problem with the “known” distance to NGC 3938. Star formation rate and metallicity values are also computed; the star formation rate is highly dependent on the adopted distance. …”
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Interaction of an Outflow with Surrounding Gaseous Clouds as the Origin of Late-time Radio Flares in Tidal Disruption Events by Jialun Zhuang, Rong-Feng Shen, Guobin Mou, Wenbin Lu

“…Close encounter between a star and a supermassive black hole (SMBH) results in the tidal disruption of the star, known as a tidal disruption event (TDE). …”
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History and Habitability of the LP 890-9 Planetary System by Rory Barnes, Laura N. R. do Amaral, Jessica Birky, Ludmila Carone, Peter Driscoll, Joseph R. Livesey, David Graham, Juliette Becker, Kaiming Cui, Martin Schlecker, Rodolfo Garcia, Megan Gialluca, Arthur Adams, MD Redyan Ahmed, Paul Bonney, Wynter Broussard, Chetan Chawla, Mario Damasso, William C. Danchi, Russell Deitrick, Elsa Ducrot, Emeline F. Fromont, Brandt A. L. Gaches, Sakshi Gupta, Michelle L. Hill, James A. G. Jackman, Estelle M. Janin, Mikołaj Karawacki, Matheus Daniel Koren, Roberto La Greca, Michaela Leung, Arturo Miranda-Rosete, Michael Kent A. Olohoy, Cecelia Ngo, Daria Paul, Chandan Kumar Sahu, Debajyoti Basu Sarkar, Mohammad Afzal Shadab, Edward W. Schwieterman, Melissa Sedler, Katie Texeira, Allona Vazan, Karen N. Delgado Vega, Rohit Vijayakumar, Jonathan T. Wojack

“…We find that the host star reaches the main sequence in 1 Gyr and that planet c lies close to the inner boundary of the habitable zone. …”
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Synthesis of an Acrylamide Copolymer Containing Nano-SiO2 by Ex Situ Cu(0)-Mediated SET-LRP by Ling Wang, Zhendong Li, Pingsen Huang, Wei Ding

“…We report herein the synthesis of a novel star-shaped copolymer containing nano-SiO2 by single-electron transfer living radical polymerization (SET-LRP) in aqueous solution. …”
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The Microlensing Event Rate and Optical Depth from MOA-II 9 Yr Survey Toward the Galactic Bulge by Kansuke Nunota, Takahiro Sumi, Naoki Koshimoto, Nicholas J. Rattenbury, Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Akihiko Fukui, Ryusei Hamada, Shunya Hamada, Naoto Hamasaki, Yuki Hirao, Stela Ishitani Silva, Yoshitaka Itow, Yutaka Matsubara, Shota Miyazaki, Yasushi Muraki, Tsutsumi Nagai, Greg Olmschenk, Clement Ranc, Yuki K. Satoh, Daisuke Suzuki, Paul. J. Tristram, Aikaterini Vandorou, Hibiki Yama, (MOA collaboration)

“…In the central region with ∣ l ∣ < 5°, we estimate an optical depth of $\tau =[1.75\pm 0.04]\times 1{0}^{-6}\exp [(0.34\pm 0.02)({3}^{\circ }-| b| )]$ and an event rate of Γ = [16.08 ± 0.28] × 10 ^−6 $\exp [(0.44\pm 0.02)({3}^{\circ }-| b| )]{\mathrm{star}}^{-1}\,{\mathrm{yr}}^{-1}$ using a sample consisting of 3525 microlensing events, with Einstein radius crossing times of t _E  < 760 days and a source star magnitude of I _s  < 21.4 mag. …”
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