Profiling Spanish Prospective Buyers of Electric Vehicles Based on Demographics

p. 1-22As traffic congestion and air pollution rise at alarming rates in many cities worldwide, new smart technologies are emerging to meet the urban mobility challenge. In addition, utomotive firms have transformed their business models to make them more sustainable and to adjust to demand response. Electric vehicles (EVs) represent a viable option to reduce ecological damage and improve public health. However, in the previous literature, no consensus has been reached on the profile of prospective buyers of EVs. Based on a large-scale sample of Spanish citizens and using cluster analysis, our study provides a better understanding of the demographics of such prospective buyers. We identified four types of EV prospective buyers. Our results show that although men have a strong preference for EVs, low-income older women prove to be the most EV-aware group; their automotive driving experience and concern for sustainability could be among the underlying causes of this particular interest. Another valuable insight is the greater partiality of older people for EVs. These findings have many implications for managers, especially in the automotive industry, policymakers, and sustainability strategists. They show that EV prospective buyers should not be approached as a homogeneous group but as a heterogeneous group with different socio-demographic characteristics that might help decision-makers make better business decision.S

Cuando una ´long tail´ no es suficiente

Literature on the Long Tail has focus on the effects of the behavior of their clients and the effect on the company results. One of the main problems on the analysis of the effect is the scarcity of quality data. Most of the analysis has several shortcomings as they only reflect indirect data or they exclusively related to book and the US market. As far as existing literature, it could be an exclusive feature of Amazon. Our analysis widens the scope of the long tail by using comprehensive data by from a unique dataset on the leader of the Spanish DVD online market.

Challenges and considerations of the new labor market in the media industry

Recent changes in the economic, social, and technological environment have impacted the careers of information professionals. On one hand, new jobs and opportunities have appeared, and on the other hand, layoffs in mainstream media companies indicate that the net impact has been negative. This article attempts to analyze the most important changes in the media environment, the main forces affecting supply and demand, and the impact of changes on the careers of information professionals. Finally, we propose that some of the new radical paradigms in the world of information professionals are not conceptually new

Los medios españoles ante el nuevo mundo digital: La gran hoguera de las vanidades

The mass media in Spain has carried out major adjustments in recent years in order to adapt to the Great Recession and to disruptive or ground-breaking technology such as Internet. This has underpinned the drop in advertising revenues and government subsidies, as well as a decline in sales and subscriptions. In the boom years, promises of Internet and easy access to global financial markets at interest rates below inflation encouraged media groups to design vertical and horizontal expansion strategies aimed at positioning themselves in the domestic market whilst expanding overseas: particularly in Latam and Europe. Moreover, consumers have been able to access contents more easily and cheaply via the Internet and using a broad range of devices. The poor economic situation of traditional media (caused, mainly, by their high financial gearing) prevents them from successfully facing new challenges requiring them to change whilst new digital companies are managing to get by in spite of the highly precarious economic scenario.Los medios de comunicación de masas en España han realizado un ajuste importante en los últimos años para adaptarse a la Gran Recesión y a una tecnología disruptiva como ha sido, en muchos casos, Internet. Esto se ha traducido en la caída de los ingresos publicitarios y de las subvenciones públicas, más una bajada de ventas y suscripciones. En los años de bonanza, las promesas de Internet y el fácil acceso a los mercados financieros internacionales a intereses bajos por debajo de la inflación hicieron posible que los grupos diseñaran estrategias de expansión verticales y horizontales para tomar posición en el mercado nacional y expandirse hacia los mercados internacionales, fundamentalmente hacia América Latina y Europa. Además, los consumidores han podido acceder más fácilmente y a un menor precio a los contenidos a través de la red y con multitud de dispositivos. La mala situación económica de los medios clásicos (provocada, sobre todo, por su alto endeudamiento) no permite afrontar los nuevos retos que exige el cambio mientras que las nuevas empresas digitales subsisten bajo una elevada precariedad económica

Economía Digital y su Impacto en los Medios. Presentación.

The digital economy is impacting all industries, with particular emphasis on those intensive in information or where the information is the product. The media industries have been affected by these changes recently and dramatically. Aspects such as talent and labor, the new audiences, adaptation to the digital environment for different industries or the evolution to the challenges they face, among others, are revisited in this monograph to get a glimpse of the possible future evolution through a review of some important aspects of the past.La economía digital está impactando en todas las industrias, con especial énfasis en aquellas intensivas en información o en las que la información es el producto. Los medios de comunicación se han visto afectados por estos cambios de forma abrupta. Aspectos como el talento y el empleo, las nuevas audiencias, la adaptación al medio digital de diferentes sectores o la evolución ante los retos a los que se enfrentan son, entre otros, revisitados en este monográfico para obtener una visión de la posible evolución futura mediante un repaso de aquellos aspectos importantes del pasado.

A Milky Way-like barred spiral galaxy at a redshift of 3

International audienceThe majority of massive disk galaxies in the local Universe show a stellar barred structure in their central regions, including our Milky Way. Bars are supposed to develop in dynamically cold stellar disks at low redshift, as the strong gas turbulence typical of disk galaxies at high redshift suppresses or delays bar formation. Moreover, simulations predict bars to be almost absent beyond $z = 1.5$ in the progenitors of Milky Way-like galaxies. Here we report observations of ceers-2112, a barred spiral galaxy at redshift $z_{\rm phot} \sim 3$, which was already mature when the Universe was only 2 Gyr old. The stellar mass ($M_{\star} = 3.9 \times 10^9 M_{\odot}$) and barred morphology mean that ceers-2112 can be considered a progenitor of the Milky Way, in terms of both structure and mass-assembly history in the first 2 Gyr of the Universe, and was the closest in mass in the first 4 Gyr. We infer that baryons in galaxies could have already dominated over dark matter at $z \sim 3$, that high-redshift bars could form in approximately 400 Myr and that dynamically cold stellar disks could have been in place by redshift $z = 4-5$ (more than 12 Gyrs ago)

Extremely Red Galaxies at z = 5-9 with MIRI and NIRSpec:Dusty Galaxies or Obscured Active Galactic Nuclei?

We study a new population of extremely red objects (EROs) recently discovered by the James Webb Space Telescope (JWST) based on their NIRCam colors F277W − F444W &gt; 1.5 mag. We find 37 EROs in the Cosmic Evolution Early Release Science Survey (CEERS) field with F444W &lt; 28 mag and photometric redshifts between 5 &lt; z &lt; 7, with median z = 6.9 − 1.6 + 1.0 . Surprisingly, despite their red long-wavelength colors, these EROs have blue short-wavelength colors (F150W − F200W ∼ 0 mag) indicative of bimodal spectral energy distributions (SEDs) with a red, steep slope in the rest-frame optical, and a blue, flat slope in the rest-frame UV. Moreover, all these EROs are unresolved, point-like sources in all NIRCam bands. We analyze the SEDs of eight of them with MIRI and NIRSpec observations using stellar population models and active galactic nucleus (AGN) templates. We find that dusty galaxies or obscured AGNs provide similarly good SED fits but different stellar properties: massive and dusty, log M ⋆ / M ⊙ ∼ 10 and A V ≳ 3 mag, or low mass and obscured, log M ⋆ / M ⊙ ∼ 7.5 and A V ∼ 0 mag, hosting an obscured quasi-stellar object (QSO). SED modeling does not favor either scenario, but their unresolved sizes are more suggestive of AGNs. If any EROs are confirmed to have log M ⋆ / M ⊙ ≳ 10.5, it would increase the pre-JWST number density at z &gt; 7 by up to a factor ∼60. Similarly, if they are QSOs with luminosities in the L bol &gt; 1045-46 erg s−1 range, their number would exceed that of bright blue QSOs by more than three orders of magnitude. Additional photometry at mid-infrared wavelengths will reveal the true nature of the red continuum emission in these EROs and will place this puzzling population in the right context of galaxy evolution.</p

Search for coherent elastic neutrino-nucleus scattering at a nuclear reactor with CONNIE 2019 data

The Coherent Neutrino-Nucleus Interaction Experiment (CONNIE) is taking data at the Angra 2 nuclear reactor with the aim of detecting the coherent elastic scattering of reactor antineutrinos with silicon nuclei using charge-coupled devices (CCDs). In 2019 the experiment operated with a hardware binning applied to the readout stage, leading to lower levels of readout noise and improving the detection threshold down to 50 eV. The results of the analysis of 2019 data are reported here, corresponding to the detector array of 8 CCDs with a fiducial mass of 36.2 g and a total exposure of 2.2 kg-days. The difference between the reactor-on and reactor-off spectra shows no excess at low energies and yields upper limits at 95% confidence level for the neutrino interaction rates. In the lowest-energy range, 50-180 eV, the expected limit stands at 34 (39) times the standard model prediction, while the observed limit is 66 (75) times the standard model prediction with Sarkis (Chavarria) quenching factors.Comment: 23 pages, 14 figure

Rutas del aprendizaje ¿Qué y cómo aprenden nuestros niños y niñas? : II Ciclo. Área Curricular Ciencia y Ambiente, 3, 4 y 5 años de edad. Versión 2015

Comprende el recorrido hacia el aprendizaje de la ciencia y la tecnología en el nivel de Educación Inicial. El punto de partida es el deseo natural de los niños por descubrir el mundo que les rodea para adaptarse, conocerlo y comprenderlo mejor

First Look at z > 1 Bars in the Rest-Frame Near-Infrared with JWST Early CEERS Imaging

Stellar bars are key drivers of secular evolution in galaxies and can be effectively studied using rest-frame near-infrared (NIR) images, which trace the underlying stellar mass and are less impacted by dust and star formation than rest-frame UV or optical images. We leverage the power of {\it{JWST}} CEERS NIRCam images to present the first quantitative identification and characterization of stellar bars at $z>1$ based on rest-frame NIR F444W images of high resolution (~1.3 kpc at z ~ 1-3). We identify stellar bars in these images using quantitative criteria based on ellipse fits. For this pilot study, we present six examples of robustly identified bars at $z>1$ with spectroscopic redshifts, including the two highest redshift bars at ~2.136 and 2.312 quantitatively identified and characterized to date. The stellar bars at $z$ ~ 1.1-2.3 presented in our study have projected semi-major axes of ~2.9-4.3 kpc and projected ellipticities of ~0.41-0.53 in the rest-frame NIR. The barred host galaxies have stellar masses ~ $1 \times 10^{10}$ to $2 \times 10^{11}$ $M_{\odot}$, star formation rates of ~ 21-295 $M_{\odot}$ yr$^{-1}$, and several have potential nearby companions. Our finding of bars at $z$ ~1.1-2.3 demonstrates the early onset of such instabilities and supports simulations where bars form early in massive dynamically cold disks. It also suggests that if these bars at lookback times of 8-10 Gyr survive out to present epochs, bar-driven secular processes may operate over a long time and have a significant impact on some galaxies by z ~ 0.Comment: 16 pages, 5 figures. Accepted for Publication in Astrophysical Journal Letter