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| 2. |
- Maxwell, Tania L., et al.
(författare)
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Global dataset of soil organic carbon in tidal marshes
- 2023
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Ingår i: Scientific Data. - : Springer Nature. - 2052-4463. ; 10:1
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Tidskriftsartikel (refereegranskat)abstract
- Tidal marshes store large amounts of organic carbon in their soils. Field data quantifying soil organic carbon (SOC) stocks provide an important resource for researchers, natural resource managers, and policy-makers working towards the protection, restoration, and valuation of these ecosystems. We collated a global dataset of tidal marsh soil organic carbon (MarSOC) from 99 studies that includes location, soil depth, site name, dry bulk density, SOC, and/or soil organic matter (SOM). The MarSOC dataset includes 17,454 data points from 2,329 unique locations, and 29 countries. We generated a general transfer function for the conversion of SOM to SOC. Using this data we estimated a median (± median absolute deviation) value of 79.2 ± 38.1 Mg SOC ha−1 in the top 30 cm and 231 ± 134 Mg SOC ha−1 in the top 1 m of tidal marsh soils globally. This data can serve as a basis for future work, and may contribute to incorporation of tidal marsh ecosystems into climate change mitigation and adaptation strategies and policies.
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| 3. |
- Holmquist, C., et al.
(författare)
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Improved treatment and control of hypertension in Swedish primary care: results from the Swedish primary care cardiovascular database
- 2017
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Ingår i: Journal of Hypertension. - : Ovid Technologies (Wolters Kluwer Health). - 0263-6352. ; 35:10, s. 2102-2108
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Tidskriftsartikel (refereegranskat)abstract
- Objective:To study temporal trends in hypertension treatment and control in Swedish primary care, in relation to clinical characteristics, comorbidity, and drug treatment.Materials and methods:Repeated cross-sectional analysis of 43239 hypertensive patients attending primary care in 2001-2002 and of 62407 patients in 2007-2008.Results:Mean blood pressure (BP) 2007-2008 was 143/79mmHg in women and 142/81mmHg in men. Cardiovascular comorbidity and diabetes were present in 13 and 15% of women, and in 18 and 20% of men. Overall BP reductions from 2001-2002 to 2007-2008 were 9.0/3.1mmHg; greater in women than men, with advancing age, and in patients with comorbidity (all P<0.001). Attainment of target BP (<140/90mmHg) increased from 24 and 26% in women and men (2001-2002) to 37 and 37% (2007-2008; all P<0.001). Most common drug classes in 2001-2002 were, in descending frequency, blockers, diuretics, and calcium channel blockers (both sexes), and in 2007-2008 blockers, diuretics, and angiotensin-converting enzyme inhibitors in women, and blockers, angiotensin-converting enzyme inhibitors, and diuretics in men. The number of drug classes/patient increased from 1.5 (2001-2002) to 1.8 (2007-2008; P<0.001) but remained low (1.7) in those above target BP.Conclusion:BP control in hypertensive patients attending Swedish primary care has improved over 5-7 years, and more so in high-risk groups. There is, however, room for improvement. In uncontrolled hypertension the combination of several drug classes remain low.
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| 4. |
- Wohlfarth, B, et al.
(författare)
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An 800-year long, radiocarbon-dated varve chronology from south-eastern Sweden
- 1998
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Ingår i: BOREAS. - : SCANDINAVIAN UNIVERSITY PRESS. - 0300-9483. ; 27:4, s. 243-257
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- More than 50 varve-thickness diagrams, which were established from glacial varved clays in south-eastern Sweden were correlated with each other to form an 800-year long floating varve chronology. AMS C-14 measurements on terrestrial macrofossils from the
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| 5. |
- Wohlfarth, B, et al.
(författare)
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Pitfalls in the AMS radiocarbon-dating of terrestrial macrofossils
- 1998
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Ingår i: JOURNAL OF QUATERNARY SCIENCE. - : JOHN WILEY & SONS LTD. - 0267-8179. ; 13:2, s. 137-145
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The AMS C-14 technique has the advantage that small samples of Late Quaternary age can be dated with high accuracy, and that errors due to reservoir effects can be avoided if specifically determined terrestrial micro- and macrofossils are measured. Howeve
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| 8. |
- Hasselstrom, J., et al.
(författare)
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The Swedish Primary Care Cardiovascular Database (SPCCD): 74 751 hypertensive primary care patients
- 2014
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Ingår i: Blood Pressure. - : Informa UK Limited. - 0803-7051 .- 1651-1999. ; 23:2, s. 116-125
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Tidskriftsartikel (refereegranskat)abstract
- Objective. To describe the Swedish Primary Care Cardiovascular Database, SPCCD. Design. Longitudinal data from electronic medical records, linked to national registers. Setting. 48 primary healthcare centres in urban (south-western Stockholm) and rural (Skaraborg) regions in Sweden. Subjects. Patients diagnosed with hypertension 2001-2008. Main outcome measures. Blood pressure (BP) and impact of retrieval of data on BP levels, clinical characteristics, co-morbidity and pharmacological treatment. Results. The SPCCD contains 74 751 individuals, 56% women. Completeness of data ranged from >99% for drug prescriptions to 34% for smoking habits. BP was recorded in 98% of patients during 2001-2008 and in 63% in 2008. Mean BP based on the last recorded value in 2008 was 142 +/- 17/80 +/- 13 mmHg. Digit preference in BP measurements differed between the two regions, p < 0.001. Antihypertensive drugs were prescribed in primary healthcare to 88% of the patients in 2008; however, when all prescribers were included 96% purchased their drugs. Cardiovascular co-morbidity and diabetes mellitus were present in 28% and 22%, respectively. Conclusion. This large and representative database shows that there is room for improvement of BP control in Sweden. The SPCCD will provide a rich source for further research of hypertension and its complications.
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| 13. |
- Holmquist, Lars Erik, et al.
(författare)
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Building Intelligent Environments with Smart-Its
- 2004
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Ingår i: IEEE Computer Graphics and Applications. - 0272-1716 .- 1558-1756. ; 24:1, s. 56-64
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Tidskriftsartikel (refereegranskat)abstract
- The development of Smart-Its for building smart environments is discussed. Smart-Its are small, self-contained, stick-on computers that attach to everyday objects. These augmented objects become soft media, enabling dynamic digital relationships with users and each other. A Smart-Its consists of a core board with a wireless transceiver to let the device communicate with other Smart-Its, plus a sensor board that gives the Smart-Its data about its sorroundings. The major advantage of the system is that it allows designers and researchers to construct responsive or intelligent environments.
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| 14. |
- Holmquist, Lars Erik, et al.
(författare)
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Tangible interfaces in perspective : Guest editors' introduction
- 2004
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Ingår i: Personal and Ubiquitous Computing. - : Springer Science and Business Media LLC. - 1617-4909 .- 1617-4917. ; 8:5, s. 291-293
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Tidskriftsartikel (refereegranskat)abstract
- The use of physical objects as manipulable representations of information extends back to the dawn of civilization. Early research efforts toward tangible interfaces appear to have developed in parallel at several institutions. Fishkin has created a framework from the perspective of human-computer interaction, which offers researchers new tools for describing and contrasting tangible interfaces. At an editorial meeting, all papers were discussed at length by the three editors. In some cases, this meant choosing among submissions that were similar in scope, and picking the one that best supported our intentions for the issue. The paper by McNerney takes the Slot Machine as a departing point, and discusses an evolution of education-oriented tangible interface research at the MIT Media Lab. And Binder et al. discuss a series of efforts where tangible interfaces have been integrated into the working environment of students, under the auspices of a European project with partners from several countries.
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| 17. |
- Malhotra, Avni, et al.
(författare)
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The landscape of soil carbon data : emerging questions, synergies and databases
- 2019
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Ingår i: Progress in physical geography. - : SAGE Publications. - 0309-1333 .- 1477-0296. ; 43:5, s. 707-719
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Tidskriftsartikel (refereegranskat)abstract
- Soil carbon has been measured for over a century in applications ranging from understanding biogeochemical processes in natural ecosystems to quantifying the productivity and health of managed systems. Consolidating diverse soil carbon datasets is increasingly important to maximize their value, particularly with growing anthropogenic and climate change pressures. In this progress report, we describe recent advances in soil carbon data led by the International Soil Carbon Network and other networks. We highlight priority areas of research requiring soil carbon data, including (a) quantifying boreal, arctic and wetland carbon stocks, (b) understanding the timescales of soil carbon persistence using radiocarbon and chronosequence studies, (c) synthesizing long-term and experimental data to inform carbon stock vulnerability to global change, (d) quantifying root influences on soil carbon and (e) identifying gaps in model-data integration. We also describe the landscape of soil datasets currently available, highlighting their strengths, weaknesses and synergies. Now more than ever, integrated soil data are needed to inform climate mitigation, land management and agricultural practices. This report will aid new data users in navigating various soil databases and encourage scientists to make their measurements publicly available and to join forces to find soil-related solutions.
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| 19. |
- Sander, Mikkel, et al.
(författare)
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The relationship between annual varve thickness and maximum annual discharge (1909-1971)
- 2002
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Ingår i: Journal of Hydrology. - 0022-1694. ; 263:1-4, s. 23-35
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Tidskriftsartikel (refereegranskat)abstract
- Annually laminated (varved) sediments from the River Angermanalven, mid-central Sweden, have been used to construct an annual 2000-year long record of varve thickness. Maximum daily annual discharge and mean varve thickness for the years 1909-1971 are significantly correlated (r = 0.87). A relationship between maximum daily annual discharge for the observed period (1909-1971) and varve thickness was determined. The return time of two exceptionally thick varves in the 2000-year long record at the years 658 and 492 AD were estimated and their likelihood estimated based on a Gumbel frequency analysis. (C) 2002 Elsevier Science B.V. All rights reserved.
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