DNS zones revisited

Recent research [Pap04b] suggests DNS reliability and performance is not up to the levels it should be due to misconfigurations. This paper checks the configuration of nameserver zones against additional requirements, recommendations and best-practices. It shows that almost one in four domains fails to pass one or more of these checks. During the checks an interesting correlation is established: a higher number of nameservers for a single zone usually decreases reliability and performance instead of increasing both

Audio-Visual Integration in a Redundant Target Paradigm: A Comparison between Rhesus Macaque and Man.

The mechanisms underlying multi-sensory interactions are still poorly understood despite considerable progress made since the first neurophysiological recordings of multi-sensory neurons. While the majority of single-cell neurophysiology has been performed in anesthetized or passive-awake laboratory animals, the vast majority of behavioral data stems from studies with human subjects. Interpretation of neurophysiological data implicitly assumes that laboratory animals exhibit perceptual phenomena comparable or identical to those observed in human subjects. To explicitly test this underlying assumption, we here characterized how two rhesus macaques and four humans detect changes in intensity of auditory, visual, and audio-visual stimuli. These intensity changes consisted of a gradual envelope modulation for the sound, and a luminance step for the LED. Subjects had to detect any perceived intensity change as fast as possible. By comparing the monkeys' results with those obtained from the human subjects we found that (1) unimodal reaction times differed across modality, acoustic modulation frequency, and species, (2) the largest facilitation of reaction times with the audio-visual stimuli was observed when stimulus onset asynchronies were such that the unimodal reactions would occur at the same time (response, rather than physical synchrony), and (3) the largest audio-visual reaction-time facilitation was observed when unimodal auditory stimuli were difficult to detect, i.e., at slow unimodal reaction times. We conclude that despite marked unimodal heterogeneity, similar multisensory rules applied to both species. Single-cell neurophysiology in the rhesus macaque may therefore yield valuable insights into the mechanisms governing audio-visual integration that may be informative of the processes taking place in the human brain

Expert medico-legal reports: The relationship between levels of consistency and judicial outcomes in asylum seekers in the Netherlands

Introduction: If asylum applicants need to prove that they have been persecuted in their home country, expert judgment of the psychological and physical consequences of torture may support the judicial process. Expert medico-legal reports can be used to assess whether the medical complaints of the asylum seeker are consistent with their asylum account. It is unclear which factors influence medical expert judgement about the consistency between an asylum seeker’s symptoms and story, and to what extent expert medico-legal reports are associated with judicial outcomes. Methods: We analysed 97 medico-legal reports on traumatised asylum seekers in the Netherlands. First, we evaluated the impact of trauma-related and other variables on experts’ judgments of the consistency of symptoms and story. Second, we evaluated the effect of experts’ judgments of symptom-story consistency on subsequent judicial outcomes. Results: Gender, receipt of mental health care and trauma-related variables were associated with symptomstory consistency. Positive asylum decisions were predicted by expert judgments about the presence of physical signs and symptoms of torture, and ill-treatment and their consistency with the refugee’s story, but not psychological symptoms. Conclusion: These results suggest that standardised procedures for the documenting of medical evidence by independent experts can improve judicial decision quality and the need to improve psychological and psychiatric assessments