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Como parte de su política de comunicación, las fuerzas y cuerpos de seguridad de todo el mundo se han introducido en las redes sociales para relacionarse con los ciudadanos. A nivel internacional hay ya una amplia corriente de investigación sobre este tema, pero hasta el momento hay muy pocos estudios empíricos sobre el caso español, a pesar de que las policías de nuestro país son consideradas como un caso de éxito. El presente trabajo trata de realizar una primera aproximación sobre el uso que dan a estas redes sociales y analiza cuestiones como su compromiso con la comunicación 2.0, las comunidades que han conseguido generar y cuál es la actividad que desarrollan para difundir información e interaccionar con los ciudadanos. Ello se complementará con una comparación con los principales cuerpos policiales internacionales, lo que permitirá apuntar algunas claves que justifican el éxito español, así como futuras líneas de investigación a desarrollar en este campo. As a part of their communication policy, security forces and corps around the world have been introduced into social networks to interact with citizens. At international level, there is a wide line of research on this subject, but there are very few empirical studies until now on the Spanish case, despite the fact that the police in our country is considered a case of success. In this paper we try to make a first approximation about the use they give to these social networks, analyzing issues such as their commitment to communication 2.0, the communities they have created and the activity that they develop to disseminate information and interact with the citizens. This will be complemented by a comparison with the main international police forces, which will allow us to point out some keys that justify Spanish success, as well as future lines of research to be developed in this field.

During the Middle Paleolithic period, carnivores and hominids periodically occupied the same areas at different times and each predator generated significant palimpsests, rendering difficult their archaeological interpretation. Teixoneres Cave, a carnivore den site, located in the northeastern part of the Iberian Peninsula, demonstrates that it is possible to overcome these problems by using a careful strategy in selecting samples for radiocarbon dating, in order to produce an accurate chronology of the site in question and certainly attest the human occupation.

10.1016/j.jhevol.2012.11.003

10.1016/j.quascirev.2012.04.008 According to pollen analysis and the 18O-isotope curve, the first part of the Late Pleistocene (ca 128-30 ka) is mainly characterized by a dynamic that alternates cold phases (Heinrich Events) and temperate phases (interstadials). These rapid fluctuations provide the context for the Neanderthal occupations in the northeastern part of the Iberian Peninsula. In this paper we present the chronological, environmental and climatic data obtained by analyzing the pollen, the charcoal, the small vertebrates (amphibians, squamates and small mammals) and the large-mammal dental wear at the Neanderthal site of Teixoneres cave, Northeastern Iberia. Levels II and III from this cavity have provided Mousterian industries and other evidence of Neanderthal occupations, such as cut-marks in large-mammal bones. A multiproxy study such as this constitutes a new approach to the chronological, environmental and climatic context in which Neanderthal populations lived in southwestern Europe (Iberian Peninsula). The results allow us to establish a relative chronology for these two levels of between ca 30-90 ka and show that they are associated with different environmental and climatic conditions: temperate and humid for Level III and cold and dry for Level II. This demonstrates that the Neanderthals were well adapted to the territory that they occupied, irrespective of the climatic conditions.

Filiació URV: SI Kaldar Cave is a key archaeological site that provides evidence of the Middle to Upper Palaeolithic transition in Iran. Excavations at the site in 2014-2015 led to the discovery of cultural remains generally associated with anatomically modern humans (AMHs) and evidence of a probable Neanderthal-made industry in the basal layers. Attempts have been made to establish a chronology for the site. These include four thermoluminescence (TL) dates for Layer 4, ranging from 23,100 ± 3300 to 29,400 ± 2300 BP, and three AMS radiocarbon dates from charcoal samples belonging to the lower part of the same layer, yielding ages of 38,650-36,750 cal BP, 44,200-42,350 cal BP, and 54,400-46,050 cal BP (all at the 95.4% confidence level). Kaldar Cave is the first well-stratified Late Palaeolithic locality to be excavated in the Zagros which is one of the earliest sites with cultural materials attributed to early AMHs in western Asia. It also offers an opportunity to study the technological differences between the Mousterian and the first Upper Palaeolithic lithic technologies as well as the human behaviour in the region. In this study, we present a detailed description of the newly excavated stratigraphy, quantified results from the lithic assemblages, preliminary faunal remains analyses, geochronologic data, taphonomic aspects, and an interpretation of the regional paleoenvironment.

This article presents the results of archaeological exploration at De Nadale Cave, a new Late Middle Palaeolithic site recently discovered in the Berici Hills, a karstic plateau in the north-east of Italy. A first survey and field campaigns have brought to light a small cavity almost totally filled with sediments embedding one single Mousterian layer sandwiched by sediments avoid of any relevant archaeological remains. A large herbivore tooth has been U-Th dated, with a minimum age of 70.2 +1/-0.9 ky BP. Several economic and cultural aspects make this site peculiar with respect to the others at the regional scale. The faunal remains record the abundance of large ungulates, mostly Megaloceros giganteus, but also Cervus elaphus and Bos/Bison. Their bone surfaces bear traces of human modification produced during skinning, dismembering, and fracturing of the carcasses and the long bone shafts for marrow recovery. There is a high number of bone retouchers in proportion to the fragmented shafts, used for shaping and rejuvenating different types of scrapers. The lithic industry shows typical Quina characteristics in its technology and typology, with several thin and thick scrapers made of non-local flint due to its absence in proximity of the site. On-going research will investigate in more detail a so specific evidence in the Middle Palaeolithic of the North-Adriatic rim.