Urban abiotic stressors drive changes in the foraging activity and colony growth of the black garden ant Lasius niger.

Changes in habitat characteristics are known to have profound effects on biotic communities and their functional traits. In the context of an urban-rural gradient, urbanisation drastically alters abiotic characteristics, e.g., by increasing environmental temperatures and through light pollution. These abiotic changes significantly impact the functional traits of organisms, particularly insects. Furthermore, changes in habitat characteristics also drive changes in the behavioural traits of animals, allowing them to adapt and thrive in new environments. In our study, we focused on the synanthropic ant species Lasius niger as a model organism. We conducted nocturnal field observations and complemented them with laboratory experiments to investigate the influence of night warming (NW) associated with Urban Heat Islands (UHI), light pollution (ALAN), and habitat type on ant foraging behaviour. In addition, we investigated the influence of elevated temperatures on brood development and worker mortality. Our findings revealed that urban populations of L. niger were generally more active during the night compared to their rural counterparts, although the magnitude of this difference varied with specific city characteristics. In laboratory settings, higher temperatures and continuous illumination were associated with increased activity level in ants, again differing between urban and rural populations. Rural ants exhibited more locomotion compared to their urban counterparts when maintained under identical conditions, which might enable them to forage more effectively in a potentially more challenging environment. High temperatures decreased the developmental time of brood from both habitat types and increased worker mortality, although rural colonies were more strongly affected. Overall, our study provides novel insights into the influence of urban environmental stressors on the foraging activity pattern and colony development of ants. Such stressors can be important for the establishment and spread of synanthropic ant species, including invasive ones, and the biotic homogenization of anthropogenic ecosystems.

Manejo de la vía aérea bajo control fibrobroncoscópico en un paciente adulto con epiglotitis aguda / No disponible

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Detección precoz de la sordera mediante otoemisiones. Análisis de los resultados en 200 niños consecutivos explorados / Early hearing loss detection by otoemissions. Analysis of the results in 200 consecutive children reviewed

Presentamos un estudio retrospectivo de 200 niños consecutivos explorados en nuestro hospital entre noviembre del 2005 y abril del 2006 del programa o protocolo de Detección Precoz de Soderas establecido desde hace varios años en nuestra Comunidad. Aquellos niños con sospecha de hipoacusia tras la realización de las otoemisiones acústicas son sometidos a potenciales evocados auditivos de tronco cerebral (PEATC) 3 meses después

We present a retrospective study of 200 consecutive children explored in our hospital between november 2005 and april 2006, as a part of the protocole or program of early identification hearing loss stablished several years ago in our Comunity. In case of suspected hypoacusia after performing otoacoustic emissions, children must be sent to PEATC 3 months later

[Cholesterol cyst-granuloma on petrous apex. Report of a case and differential diagnosis]. / Quiste-granuloma de colesterol de la punta del peñasco. Presentación de un caso y diagnóstico diferencial.

Cholesterol granulomas and cysts located on the petrous apex can course of a silent way during years. We describe one case assisted in our consulting rooms which was discovered after performing CT and MRI (with and without paramagnetic contrast) in a patient with vertigo associated to conscience loss without other symptoms. In the discussion is exposed which must be the differential diagnosis of this pathology.

Quiste-granuloma de colesterol de la punta del peñasco. Presentación de un caso y diagnóstico diferencial / Colesterol cyst-granuloma on petrous apex. Report of a case and differential diagnosis

Los quistes y granulomas de colesterol localizados en la punta del peñasco pueden cursar de forma silente durante años. Describimos un caso atendido en nuestras consultas que fue descubierto tras realizar TC y RMN óticocraneal (con y sin contraste) en una paciente con vértigo asociado a pérdida de conocimiento sin otra sintomatología. Exponemos en la discusión cuál debe ser el diagnóstico diferencial de esta patología

Cholesterol granulomas and cysts located on the petrous apex can course of a silent way during years. We describe one case assisted in our consulting rooms which was discovered after performing CT and MRI (with and without paramagnetic contrast) in a patient with vertigo associated to conscience loss without other symptoms. In the discussion is exposed which must be the differential diagnosis of this pathology

[Early hearing loss detection by otoemissions. Analysis of the results in 200 consecutive children reviewed]. / Detección precoz de sorderas mediante otoemisiones. Análisis de los resultados en 200 niños consecutivos explorados.

We present a retrospective study of 200 consecutive children explored in our hospital between november 2005 and april 2006, as a part of the protocole or program of early identification hearing loss stablished several years ago in our Comunity. In case of suspected hypoacusia after performing otoacoustic emissions, children must be sent to PEATC 3 months later.