Mediamusic (E-Journal)
Not a member yet
40683 research outputs found
Sort by
Topographies of Conduct?:Ethical Implications of the Ekphrastic Description of Jerusalem in Revelation 21
No full textFour new species of <i>Cichlidogyrus</i> (Platyhelminthes, Monopisthocotyla, Dactylogyridae) from Lake Victoria haplochromine cichlid fishes, with the redescription of <i>C. bifurcatus</i> and <i>C. longipenis</i>
No full text– African cichlids are model systems for evolutionary studies and host-parasite interactions, because of their adaptive radiations and because they harbour many species of monogenean parasites with high host-specificity. Five locations were sampled in southern Lake Victoria: gill-infecting monogeneans were surveyed from 18 cichlid species belonging to this radiation superflock and two others representing two older and distantly related lineages. We found one species of Gyrodactylidae, Gyrodactylus sturmbaueri Vanhove, Snoeks, Volckaert & Huyse, 2011, and seven species of Dactylogyridae. Four are described herein: Cichlidogyrus pseudodossoui n. sp., Cichlidogyrus nyanza n. sp., Cichlidogyrus furu n. sp., and Cichlidogyrus vetusmolendarius n. sp. Another Cichlidogyrus species is reported but not formally described (low number of specimens, morphological similarity with C. furu n. sp.). Two other species are redescribed: C. bifurcatus Paperna, 1960 and C. longipenis Paperna & Thurston, 1969. Our results confirm that the monogenean fauna of Victorian littoral cichlids displays lower species richness and lower host-specificity than that of Lake Tanganyika littoral cichlids. In C. furu n. sp., hooks V are clearly longer than the others, highlighting the need to re-evaluate the current classification system that considers hook pairs III–VII as rather uniform. Some morphological features of C. bifurcatus, C. longipenis, and C. nyanza n. sp. suggest that these are closely related to congeners that infect other haplochromines. Morphological traits indicate that representatives of Cichlidogyrus colonised Lake Victoria haplochromines or their ancestors at least twice, which is in line with the Lake Victoria superflock being colonised by two cichlid tribes (Haplochromini and Oreochromini).</p
More than mundane matters:An exploration of how schools organize professional learning teams
No full textOrganizational tasks and processes are preconditions for organizing professional learning teams but are often neglected in research. In nine schools, we examined which organizational tasks and processes were set up for lesson study, a form of a professional learning team, and in what way. Schools set up three organizational tasks and processes: recruiting participants, giving credit for time-investment, and scheduling meetings. Recruitment of participants was sometimes difficult when potential participants worked autonomously within their departments or teams. Credit for time-investment was often constrained as schools gave credit in a way that made lesson study an additional workload. Scheduling meetings was very challenging. The scheduled meetings were considered satisfactory in only one school. Here, the school leader collaborated and communicated with her teachers to plan useful and uninterrupted meetings in the timetable. Our results show that organizational work is not mundane and simple but complex and vital for embedding professional development in schools
Companions to new pathways. Intermediary organisations and the resilience of the Frisian dairy industry, 1950-1970
No full textThe dairy industry in Europe was faced with profound challenges in the post-war era, such as rising wage levels and increasing competition. A common response for companies was to adapt by means of scale expansion, mechanisation and automation of the production process. Between 1950 and 1970, dairy factories remained relatively small and were supported by organisations at the regional level. However, much is unknown about the contribution of regional sectoral actors to adaptation processes. By means of an in-depth analysis of the dairy processing industry in the Dutch province of Friesland, this article explores the mechanisms behind adaptation and thereby contributes to the understanding of regional economic resilience. The analysis benefits from the fields of economic geography and innovation studies, which have theorised about the role of regional actors in adaptation processes, and, in turn, illustrates how these fields can contribute to the field of business history.</p
A walkability assessment tool coupling multi-criteria analysis and space syntax:The case study of Iglesias, Italy
No full textThe global trend towards the growth of urban population poses the issue of the public space influence on outdoor practices of different subjects. Urban public space is the carrier of an ever-increasing number and density of users. Walking, both as a form of transportation and as a vector to physical activity and social interactions, emerges as a fundamental category of behaviour. The proposed research develops a theoretical and methodological framework for assessing walkability of the urban space. Building on concepts of capability and affordance, walkability is herein conceptualized in terms of the effect of affordances incorporated into the built environment on individuals’ propensity to walk for different purposes. The methodological framework aims to capture the characteristics of walkability across scales as the product of the intrinsic and extrinsic properties of an urban setting.</p
Inertial measurement units to estimate drag forces and power output during standardised wheelchair tennis coast-down and sprint tests
No full textThe purpose of this study was to describe and explore an inertial measurement unit-based method to analyse drag forces and external power loss in wheelchair tennis, using standardised coast-down and 10 m sprint tests. Drag forces and power output were explored among different wheelchair-athlete combinations and playing conditions (tyre pressure, court-surface). Eight highly trained wheelchair tennis players participated in this study. Three inertial measurement units (IMUs) were placed on the frame and axes of the wheels of their wheelchair. All players completed a set of three standardised coast-down trials and two 10 m sprints with different tyre pressures on hardcourt surface. One athlete completed additional tests on a clay/grass tennis-court. Coast-down based drag forces of 4.8-7.2 N and an external power loss of 9.6-14.4 W at a theoretical speed of 2 m/s were measured on hardcourt surface. A higher tyre pressure led to lower drag forces during coast-down tests on hardcourt surface (Fr (4) = 10.7, p = 0.03). For the single athlete, there was an external power loss of 10.4, 15.6 and 49.4 W, respectively, for the hardcourt, clay and grass. The current prediction of power output was implemented during coast-down testing; unfortunately, the power prediction during 10 m sprints was difficult to accomplish.</p
What we learned from the Covid-19 first wave:a survey from Young Pediatric Urology Committee (YPUC) from ESPU
No full textBACKGROUND: The Corona virus still has a big impact on medical work. All medical specialties have been called to confront this unexpected event, even pediatric surgery. The objective of this study is to highlight the effect of pandemic on daily work of young pediatric surgeons during the Covid-19 first wave.METHODS: An online survey was sent via email by the Scientific Committee of YPUC in April 2020. The impact of Covid-19 was invested, by analyzing the results of answers received. The difference between young consultants and trainees (C and T) were examined to assess the effect of pandemic in 2 different categories.RESULTS: A total of 88 participants filled out the questionnaire. Guidelines around surgeries were well arranged: clear for 98% concerning triage with no difference between T and C; clear for 84% concerning pre-operative screening and for 81% concerning surgical dressing with a significance difference between T and C in understanding (p=0.07 and p=0.06). Forty-two respondents (48%) tested all surgical patients and the 20% operated patients positive for COVID-19. Thirteen (15%) were relocated to work in other divisions on different tasks, 12 were C. 86% of T did not participate in surgeries as much as before.CONCLUSIONS: The impact of the pandemic has been very significant for pediatric urologists and the difference between C and T confirm that the training could be impacted. After the first wave we should be careful on PPE, on pre-operative screening of surgical patients and we should protect the trainee learning curve.</p
Limited diversity in risk treatment selection in public infrastructure projects:A rational response?
No full textIn public infrastructure projects, risks can emerge quickly due to its external uncertainties and interdependencies among a large number of stakeholders. Scholars still debate whether the current approach of risk management is dynamic enough to safeguard project objectives in such public environments. Because of little empirical evidence that explains how and why Project Management Teams (PMTs) select a specific risk treatment, we aim to characterize risk treatment selection by PMTs in public infrastructure projects. Based on document reviews and semi-structured interviews with PMT members and their executives of a Dutch project-oriented public infrastructure agency, it was found that the diversity in risk treatment selection is limited and risk treatment in public infrastructure projects focuses on controlling risk predominantly through preventive control measures. Although PMTs also intentionally control risk through preventive measures, the decision to do so is often implicitly taken and constitutes an unwitting routine that PMTs seem to have developed due to a risk-averse organizational culture. We conclude with providing directions to improve risk management practices and enable more diversity in risk treatment selection by PMTs in public infrastructure projects
Salivary and Dental Complications in Childhood Cancer Survivors Treated With Radiation Therapy to the Head and Neck:A Pediatric Normal Tissue Effects in the Clinic (PENTEC) Comprehensive Review
No full textPURPOSE: Radiation therapy (RT) to the head and neck (H&N) region is critical in the management of various pediatric malignancies; however, it may result in late toxicity. This comprehensive review from the Pediatric Normal Tissue Effects in the Clinic (PENTEC) initiative focused on salivary dysfunction and dental abnormalities in survivors who received RT to the H&N region as children.MATERIALS & METHODS: This systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) method.RESULTS: Of the 2,164 articles identified through a literature search, 40 were included in a qualitative synthesis and 3 were included in a quantitative synthesis. The dose-toxicity data regarding salivary function demonstrate that a mean parotid dose of 35 to 40 Gy is associated with a risk of acute and chronic grade ≥2 xerostomia of approximately 32% and 13% to 32%, respectively, in patients treated with chemo-radiation therapy. This risk increases with parotid dose; however, rates of xerostomia after lower dose exposure have not been reported. Dental developmental abnormalities are common after RT to the oral cavity. Risk factors include higher radiation dose to the developing teeth and younger age at RT.CONCLUSIONS: This PENTEC task force considers adoption of salivary gland dose constraints from the adult experience to be a reasonable strategy until more data specific to children become available; thus, we recommend limiting the parotid mean dose to ≤26 Gy. The minimum toxic dose for dental developmental abnormalities is unknown, suggesting that the dose to the teeth should be kept as low as possible particularly in younger patients, with special effort to keep doses <20 Gy in patients <4 years old.</p
Learning from children:Experiences and needs of children in the Dutch child protection system
No full textChildren are primary service users in the context of child protection and have the right to share their views in all matters affecting them. In this qualitative study, we interviewed 11 children about their experiences with a trajectory in the Dutch child protection system (CPS). Our reflexive thematic analysis shows that such a trajectory strongly impacts children’s lives. During this trajectory, children want to be cared about, taken seriously and understood. According to them, professionals need to be really motivated and dedicated to help them, enabling them to go on with their (daily) life as much and as soon as possible. Furthermore, children need the opportunity to tell what they want to tell. They want clarity and honesty with professionals, and respect for (the bond with) their parents. Results could be validated against a robust, deductively developed counseling model. The study provides pertinent recommendations for the CPS