Et undersøgende blik på læringsmål og elevplaner i matematik på min skole

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Matematiksystemer mellem potentiale og udfoldelse

Kommentar til Gissel et al.: “Kompetencedækning i analoge matematiksystemer til mellemtrinnet”, MONA, 2019(3

Persistent High Incidence of Tuberculosis in Immigrants in a Low-Incidence Country

Immigration from areas of high incidence is thought to have fueled the resurgence of tuberculosis (TB) in areas of low incidence. To reduce the risk of disease in low-incidence areas, the main countermeasure has been the screening of immigrants on arrival. This measure is based on the assumption of a prompt decline in the incidence of TB in immigrants during their first few years of residence in a country with low overall incidence. We have documented that this assumption is not true for 619 Somali immigrants reported in Denmark as having TB. The annual incidence of TB declined only gradually during the first 7 years of residence, from an initial 2,000 per 100,000 to 700 per 100,000. The decline was described by an exponential function with a half-time of 5.7 (95% confidence interval 4.0 to 9.7) years. This finding seriously challenges the adequacy of the customary practice of screening solely on arrival

Parents’ perspectives on preparing for parenthood: a qualitative study on Greenland’s universal parenting programme MANU 0–1 year

Background The transition to parenthood has received increasing attention in research, partly due to evidence pointing out the crucial developmental period of a child’s first thousand days. Parenting programmes aim to prepare and support families in their transition and distress. For a programme to be implemented successfully it is important to consider parents’ needs and resources. Bringing parents’ perspectives and experiences to the forefront of the implementation of the Greenlandic parenting programme MANU 0–1 Year (MANU) is important for determining if the programme can meet its aim of contributing to thriving families. This study aims to investigate how parents’ notions and experiences of parenthood are reflected and challenged in MANU. Method Data were collected in three of Greenland’s five municipalities. Qualitative interviews were held with 38 mothers and 12 fathers either individually or as couples: a total of 40 interviews. Additionally, a Sharing Circle with three fathers was held. Interviews were in Greenlandic or Danish. A thematic, inductive analysis was applied. Results In their transition to parenthood, participants experienced a reprioritisation of their life and changes in their network. It is important to parents that their child experiences security and care, and participants describe this in contrast to their own childhood. Community is the most important value in child-rearing. Conversations and advice from family members and friends are mentioned as a means to prepare for birth and parenthood. Additionally, conversations with midwives and MANU sessions were also used for preparation. Parents appreciated learning from and listening to other parents in MANU sessions. However, accessing MANU depends on the individual parent’s interest and ability to attend sessions. Conclusions Parents’ notions and experiences of parenthood are addressed in the programme, but the use of MANU depends on the parents’ attendance and how it is organised and locally offered. The study suggests that MANU has the possibility to create a space for parents to reflect and prepare. However, for MANU to be universal as intended and to reach both mother and father the facilitation of sessions could be revisited

Benefit of respiratory gating in the Danish Breast Cancer Group partial breast irradiation trial

Background and purpose: Partial breast irradiation (PBI)has beenthe Danish Breast Cancer Group(DBCG) standard for selected breast cancer patients since 2016 based onearlyresults from the DBCG PBI trial.During trial accrual, respiratory-gated radiotherapy was introduced in Denmark. This study aims to investigate the effect of respiratory-gating on mean heart dose (MHD).Patients and methods: From 2009 to 2016 the DBCG PBI trial included 230 patientswith left-sided breast cancer receiving external beam PBI, 40 Gy/15 fractions/3 weeks.Localization of the tumor bed on the planning CT scan, the use of respiratory-gating, coverage of the clinical target volume (CTV), and doses to organs at risk were collected.Results: Respiratory-gating was used in 123 patients (53 %). In 176 patients (77 %) the tumor bed was in the upper and in 54 patients (23 %) in the lower breast quadrants. The median MHD was 0.37 Gy (interquartile range 0.26-0.57 Gy), 0.33 Gy (0.23-0.49 Gy) for respiratory-gating, and 0.49 Gy (0.31-0.70 Gy) for free breathing, p < 0.0001. MHD was < 1 Gy in 206 patients (90 %) and < 2 Gy in 221 patients (96 %). Respiratory-gating led to significantly lower MHD for upper-located, but not for lower-located tumor beds, however, all MHD were low irrespective of respiratory-gating. Respiratory-gating did not improve CTV coverage or lower lung doses.Conclusions: PBI ensured a low MHD for most patients. Adding respiratory-gating further reduced MHD for upper-located but not for lower-located tumor beds but did not influence target coverage or lung doses. Respiratory-gating is no longer DBCG standard for left-sided PBI

GHOST Commissioning Science Results II: a very metal-poor star witnessing the early Galactic assembly

This study focuses on Pristine$\_180956.78$$-$$294759.8$ (hereafter P180956, [Fe/H] $=-1.95\pm0.02$), a star selected from the Pristine Inner Galaxy Survey (PIGS), and followed-up with the recently commissioned Gemini High-resolution Optical SpecTrograph (GHOST) at the Gemini South telescope. The GHOST spectrograph's high efficiency in the blue spectral region ($3700-4800$~\AA) enables the detection of elemental tracers of early supernovae (e.g. Al, Mn, Sr, Eu), which were not accessible in the previous analysis of P180956. The star exhibits chemical signatures resembling those found in ultra-faint dwarf systems, characterised by very low abundances of neutron-capture elements (Sr, Ba, Eu), which are uncommon among stars of comparable metallicity in the Milky Way. Our analysis suggests that P180956 bears the chemical imprints of a small number (2 or 4) of low-mass hypernovae (\sim10-15\msun), which are needed to reproduce the abundance pattern of the light-elements (e.g. [Si, Ti/Mg, Ca] $\sim0.6$), and one fast-rotating intermediate-mass supernova (\sim300\kms, \sim80-120\msun). Both types of supernovae explain the high [Sr/Ba] of P180956 ($\sim1.2$). The small pericentric (\sim0.7\kpc) and apocentric (\sim13\kpc) distances and its orbit confined to the plane (\lesssim 2\kpc), indicate that this star was likely accreted during the early Galactic assembly phase. Its chemo-dynamical properties suggest that P180956 formed in a system similar to an ultra-faint dwarf galaxy accreted either alone, as one of the low-mass building blocks of the proto-Galaxy, or as a satellite of Gaia-Sausage-Enceladus. The combination of Gemini's large aperture with GHOST's high efficiency and broad spectral coverage makes this new spectrograph one of the leading instruments for near-field cosmology investigations.Comment: Submitted to MNRAS. 8 figures, 15page