For courses in Earth Science, Physical Geology, Physical Geography, Earth System Science and Environmental Philosophy. This collection of essays by scholars in both the earth sciences and philosophy discusses the connections between the earth sciences and contemporary culture, and the changing role of the earth sciences in society.

BackgroundThe ARRIVE (Animal Research: Reporting of In Vivo Experiments) guidelines are widely endorsed but compliance is limited. We sought to determine whether journal-requested completion of an ARRIVE checklist improves full compliance with the guidelines.MethodsIn a randomised controlled trial, manuscripts reporting in vivo animal research submitted to PLOS ONE (March–June 2015) were randomly allocated to either requested completion of an ARRIVE checklist or current standard practice. Authors, academic editors, and peer reviewers were blinded to group allocation. Trained reviewers performed outcome adjudication (...) in duplicate by assessing manuscripts against an operationalised version of the ARRIVE guidelines that consists 108 items. Our primary outcome was the between-group differences in the proportion of manuscripts meeting all ARRIVE guideline checklist subitems.ResultsWe randomised 1689 manuscripts (control: n = 844, intervention: n = 845), of which 1269 were sent for peer review and 762 (control: n = 340; intervention: n = 332) accepted for publication. No manuscript in either group achieved full compliance with the ARRIVE checklist. Details of animal husbandry (ARRIVE subitem 9b) was the only subitem to show improvements in reporting, with the proportion of compliant manuscripts rising from 52.1 to 74.1% (X2 = 34.0, df = 1, p = 2.1 × 10−7) in the control and intervention groups, respectively.ConclusionsThese results suggest that altering the editorial process to include requests for a completed ARRIVE checklist is not enough to improve compliance with the ARRIVE guidelines. Other approaches, such as more stringent editorial policies or a targeted approach on key quality items, may promote improvements in reporting. (shrink)

Problems and choices -- Who shall live? -- The physician : the captain of the team -- The hospital : the house of hope -- Drugs : the key to modern medicine -- Paying for medical care.

El propósito de esta investigación es hacer una relectura histórico-crítica de la Ética de la Liberación como ética de la vida. Este planteamiento se hace desde la memoria política crítica que permitirá ver la influencia que ella ha tenido con otras éticas que hoy pueden agruparse en torno al concepto de convivencia: la ética intercultural, la ética ecológica, la ética de la economía solidaria, la ética de una ciencia construida socialmente y de una tecnología al servicio de las personas, la (...) ética educativa como expresión de apertura y diálogo y no como adoctrinamiento, la ética religiosa separada de todo fanatismo, la ética civil más allá de todo militarismo, la ética del género más allá de toda exclusión. Lo que implica la necesidad de consolidar una ética de la convivencia, como eje central de la cultura y de la vida de los habitantes de América Latina que no es sólo necesario estudiar sino practicar. (shrink)

Muscle synergy analysis via surface electromyography is useful to study muscle coordination in motor learning, clinical diagnosis, and neurorehabilitation. However, current methods to extract muscle synergies in the upper limb suffer from two major issues. First, the necessary normalization of EMG signals is performed via maximum voluntary contraction, which requires maximal isometric force production in each muscle. However, some individuals with motor impairments have difficulties producing maximal effort in the MVC task. In addition, the MVC is known to be highly (...) unreliable, with widely different forces produced in repeated measures. Second, synergy extraction in the upper limb is typically performed with a multidirection reaching task. However, some participants with motor impairments cannot perform this task because it requires precise motor control. In this study, we proposed a new isometric rotating task that does not require precise motor control or large forces. In this task, participants maintain a cursor controlled by the arm end-point force on a target that rotates at a constant angular velocity at a designated force level. To relax constraints on motor control precision, the target is widened and blurred. To obtain a reference EMG value for normalization without requiring maximal effort, we estimated a linear relationship between joint torques and muscle activations. We assessed the reliability of joint torque normalization and synergy extraction in the rotating task in young neurotypical individuals. Compared with normalization with MVC, joint torque normalization allowed reliable EMG normalization at low force levels. In addition, the extraction of synergies was as reliable and more stable than with the multidirection reaching task. The proposed rotating task can, therefore, be used in future motor learning, clinical diagnosis, and neurorehabilitation studies. (shrink)

Really statistical explanation is a hitherto neglected form of noncausal scientific explanation. Explanations in population biology that appeal to drift are RS explanations. An RS explanation supplies a kind of understanding that a causal explanation of the same result cannot supply. Roughly speaking, an RS explanation shows the result to be mere statistical fallout.

El artículo enfoca los problemas de convivencia en las ciudades latinoamericanas, marcadas por procesos de urbanización sin articulación, regidos por lógicas de poder y caracterizados por la falta de equilibrio y equidad. Se exploran las posibilidades de pasar de territorios de supervivencia, con relaciones sociales de dominio y violencia, a espacios de comunicación y a lugares de sentido, a través de prácticas, políticas y estrategias de convivencia. The article focuses on the problems of living in Latin American cities, marked by (...) urbanization processes without articulation, governed by logics of power and characterized by a lack of balance and fairness. It explores the possibilities to move from territories of survival, with social relationships of domination and violence, to communicative spaces and places of meaning through practices, policies and strategies of coexistence. (shrink)

El artículo enfoca los problemas de convivencia en las ciudades latinoamericanas, marcadas por procesos de urbanización sin articulación, regidos por lógicas de poder y caracterizados por la falta de equilibrio y equidad. Se exploran las posibilidades de pasar de territorios de supervivencia, con relaciones sociales de dominio y violencia, a espacios de comunicación y a lugares de sentido, a través de prácticas, políticas y estrategias de convivencia.The article focuses on the problems of living in Latin American cities, marked by urbanization (...) processes without articulation, governed by logics of power and characterized by a lack of balance and fairness. It explores the possibilities to move from territories of survival, with social relationships of domination and violence, to communicative spaces and places of meaning through practices, policies and strategies of coexistence. (shrink)

We can understand viewed scenes and extract task-relevant information within a few hundred milliseconds. This process is generally supported by three cortical regions that show selectivity for scene images: parahippocampal place area (PPA), medial place area (MPA) and occipital place area (OPA). Prior studies have focused on the visual information each region is responsive to, usually within the context of recognition or navigation. Here, we move beyond these tasks to investigate gaze allocation during scene viewing. Eye movements rely on a (...) scene’s visual representation to direct saccades, and thus foveal vision. In particular, we focus on the contribution of OPA, which is i) located in occipito-parietal cortex, likely feeding information into parts of the dorsal pathway critical for eye movements, and ii) contains strong retinotopic representations of the contralateral visual field. Participants viewed scene images for 1034 ms while their eye movements were recorded. On half of the trials, a 500 ms train of five transcranial magnetic stimulation (TMS) pulses was applied to the participant’s cortex, starting at scene onset. TMS was applied to the right hemisphere over either OPA or the occipital face area (OFA), which also exhibits a contralateral visual field bias but shows selectivity for face stimuli. Participants generally made an overall left-to-right, top-to-bottom pattern of eye movements across all conditions. When TMS was applied to OPA, there was an increased saccade latency for eye movements toward the contralateral relative to the ipsilateral visual field after the final TMS pulse (400ms). Additionally, TMS to the OPA biased fixation positions away from the contralateral side of the scene compared to the control condition, while the OFA group showed no such effect. There was no effect on horizontal saccade amplitudes. These combined results suggest that OPA might serve to represent local scene information that can then be utilized by visuomotor control networks to guide gaze allocation in natural scenes. (shrink)