| 1. |
- Ambjörnsson, Joakim, et al.
(författare)
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Prehospital suspicion and identification of adult septic patients : Experiences of a screening tool
- 2016
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Ingår i: 2nd Global Conference on Emergency Nursing and Trauma Care, Melia Sitges, September 22-24, 2016.
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Konferensbidrag (refereegranskat)abstract
- Introduction: Sepsis is life threatening and requires urgent healthcare to reduce suffering and death. Therefore it is important that septic patients are identified early to enable treatment. Aim: To investigate to what extent EMS personnel identified patients with sepsis using the “BAS 90-30-90” model, and to describe assessments and medical procedures that were undertaken by the personnel.Methods: This was a retrospective study where 185 EMS medical records were reviewed. The inclusion was based on patients who were later diagnosed with sepsis in the hospital. Results: A physician assessed the patients in 74 of the EMS cases, which lead to exclusion of these records in regard to the EMS personnel’s ability to identify sepsis. The personnel documented suspicion of severe sepsis in eight (n=8) of the remaining 111 records (7.2%). The proportion of patients ˃65 years of age was 73% (n=135) of which 37% (n=50) were over 80 years old. Thirty-nine percent (39%, n=72) were females. The personnel documented blood pressure in 91% (n=168), respiratory rate in 76% (n=140), saturation in 100% (n=185), temperature in 76% (n=141), and heart rate in 94% (n=174) of the records. Systolic blood pressure <90 mmHg was documented in 14,2% (n=24), respiratory rate ˃30 in 36% (n=50), saturation <90 in 49% (n=91), temperature >38°C in 37.6% (n=53), and heart rate ˃90 in 70% (n=121) of the records. Documented medical procedures and treatments were intravenous lines (70%, n=130), intravenous fluids (10%, n=19) and administration of oxygen (72%, n=133).Conclusion: The EMS personnel identified only a few septic patients with the help of the BAS 90-30-90 model when all three criteria would be met for severe sepsis. Either advanced age (>65 years), fever (>38°C) or tachypnea (˃20 breaths/min) appeared to increase the personnel’s suspicion of sepsis. Oxygen, but not intravenous fluids, was given in an adequate way.
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| 2. |
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| 3. |
- Anderbrant, Olle, et al.
(författare)
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Article sex pheromone of the introduced pine sawfly, diprion similis, revisited to define a useful monitoring lure : Deviating chiral composition and behavioural responses compared to earlier reports
- 2021
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Ingår i: Insects. - : MDPI. - 2075-4450. ; 12:10
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Tidskriftsartikel (refereegranskat)abstract
- Extracts of Diprion similis females contained about 15 ng of the sex pheromone precursor 3,7‐dimethylpentadecan‐2‐ol per female. After derivatisation with (S)‐2‐acetoxypropanoyl chloride, we found that the major stereoisomer in the extract was (2S,3R,7R)‐3,7‐dimethylpentadecan‐2‐ol. Small amounts of other stereoisomers of 3,7‐dimethylpentadecan‐2‐ol were also identified in the extract, namely 1% of (2R,3S,7S), 0.3% (2R,3R,7R) and 0.4% of (2R,3R,7S). An unknown fifth substance showed a very similar spectrum to 3,7‐dimethylpentadecan‐2‐ol, both in SIM and full scan mode. None of the earlier suggested behavioural synergistic isomers ((2S,3S,7S), (2S,3S,7R) and (2S,3R,7S)) were detected in the extracts. In field tests in Ontario, Canada, the earlier identified main pheromone component, viz. the propanoate of (2S,3R,7R)‐3,7‐dimethylpentadecan‐2‐ol, was tested alone and in combination with other stereoisomers, earlier reported to be synergistic. No synergistic effects were detected and the threo four‐isomer blend was as attractive as the pure main compound. Thus, one of the few examples of a diprionid sawfly using more than one substance in its sex pheromone could not be confirmed. The results also suggest that monitoring programs can use the more easily synthesized threo‐blend without losing efficiency. Furthermore, the study suggests that other diprionid pheromones may benefit from a reinvestigation, to clarify possible synergistic effects of stereoisomers.
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| 4. |
- Anderbrant, Olle, et al.
(författare)
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Field Response of Male Pine Sawflies, Neodiprion sertifer (Diprionidae), to Sex Pheromone Analogs in Japan and Sweden
- 2010
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Ingår i: Journal of Chemical Ecology. - : Springer Science and Business Media LLC. - 0098-0331 .- 1573-1561. ; 36:9, s. 969-977
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Tidskriftsartikel (refereegranskat)abstract
- The pine sawfly Neodiprion sertifer (Geoffroy) uses the acetate or propionate of (2S,3S,7S)-3,7-dimethyl-2-pentadecanol (diprionol) as pheromone components, with the (2S,3R,7R)-isomer being antagonistic, synergistic, or inactive according to the population tested. In this study, we tested the attraction of males to the acetates of three analogs of diprionol, each missing one methyl group, viz. (2S,7S)-7-methyl-2-pentadecanol, (2S,6S)-2,6-dimethyl-1-tetradecanol, and (2S,3S)-3-methyl-2-pentadecanol. None of the analogs alone, or in combination with diprionol acetate, was attractive in Sweden, even at 100 times the amount of diprionol acetate attractive to N. sertifer. In Japan, the acetate of (2S,3S)-3-methyl-2-pentadecanol attracted males when tested in amounts 10–20 times higher than the acetate pheromone component. The acetate esters of the (2S,3R)-analog and the (2S,3R,7R)-isomer of diprionol also were tested in combination with the pheromone compound (acetate ester). Both compounds caused an almost total trap-catch reduction in Sweden, whereas in Japan they appear to have relatively little effect on trap capture when added to diprionol acetate. Butyrate and iso-butyrate esters of diprionol were unattractive to N. sertifer in Sweden. In summary, there exists geographic variation in N. sertifer in responses to both diprionyl acetate and some of its analogs.
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| 5. |
- Anderbrant, Olle, et al.
(författare)
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Sex Pheromone of the Introduced Pine Sawfly, Diprion similis (Diprionidae), Revisited: No Activity of Earlier Reported Synergists
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Extracts of Diprion similis females were found to contain about 15 ng of the sex pheromone precursor 3,7-dimethylpentadecan-2-ol per female. When analysing the extracts after derivatisation with (2S)-2-acetoxypropionyl chloride, we found that the major stereoisomer in the extract was (2S,3R,7R)-3,7-dimethylpentadecan-2-ol. Also other stereoisomers of 3,7-dimethylpentadecan-2-ol were identified in the extract namely, 1% of (2R,3S,7S) , 0.3% (2R,3R,7R) and 0.4% of (2R,3R,7S). An unknown fifth substance showed an identical spectrum to 3,7-dimethylpentadecan-2-ol, both in SIM and full scan mode. In field tests in Ontario, Canada, the earlier identified main pheromone component, viz. the propanoate of (2S,3R,7R)-3,7-dimethylpentadecan-2-ol, was tested alone and in combination with other stereoisomers, earlier reported to be synergistic. In none of the tests were any synergistic effects detected and the threo four-isomer blend was as attractive as the pure main compound. Thus, one of the few examples of a diprionid sawfly using more than one substance in its sex pheromone could not be confirmed. The results also suggest that monitoring programs can use the more easily synthesized threo-blend without losing efficiency.
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| 6. |
- Bång, Joakim, et al.
(författare)
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Blue Chitin columns for the extraction of heterocyclic amines from cooked meat
- 2002
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Ingår i: Journal of Chromatography A. - 0021-9673. ; 977:1, s. 97-105
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Tidskriftsartikel (refereegranskat)abstract
- Mutagenic/carcinogenic heterocyclic amines (HAs) are formed at low levels (ng/g) during heat processing of protein-rich food such as meat and fish. The complex matrix requires effective extraction and purification methods. Blue Chitin columns were used for the extraction of HAs from fried chicken fillets and the samples were analysed with LC-MS. Several HAs were identified at levels ranging from 0.04 to 0.10 ng/g. The use of Blue Chitin columns provides a simple and fast method for the extraction of HAs from meat samples. (C) 2002 Elsevier Science B.V. All rights reserved.
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| 7. |
- Bång, Joakim, et al.
(författare)
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Blue Chitin columns for the extraction of heterocyclic amines from urine samples
- 2004
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Ingår i: Chromatographia. - : Springer Science and Business Media LLC. - 0009-5893 .- 1612-1112. ; 60:11-12, s. 651-655
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Tidskriftsartikel (refereegranskat)abstract
- During normal cooking of meat, a class of mutagenic/carcinogenic compounds called heterocyclic amines is formed. Heterocyclic amines are rapidly absorbed and metabolised in the human body, and for estimation of the intake of heterocyclic amines, it is useful to determinate their levels in the urine. Blue Chitin columns were used for the extraction and purification of heterocyclic amines from urine samples spiked with 14 different heterocyclic amines. The samples were analysed using LC-MS. The results show that Blue Chitin columns provide a straightforward and rapid means of extracting heterocyclic amines from urine samples, and that Blue Chitin column are also useful in the purification of urinary metabolites.
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| 8. |
- Bång, Joakim
(författare)
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Essays in empirical corporate finance
- 2011
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- In the first of the three chapters in this thesis, the effects of overlapping board directorships on executive compensation are analyzed. In particular the possibility of more or less explicit agreements to reciprocally increase compensation levels, or the possibility that the personal relationships of board members and CEOs determine compensation levels are examined, with suggestive results. The second chapter documents the existence of economically important halo effects in the Australian consumer real estate marker. The final chapter evaluates the effects of blackout (or silent) periods in the UK on corporate insider behavior.
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| 9. |
- Bång, Joakim
(författare)
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Greener pastures substitute trading in blackout periods
- 2011
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Using new UK legislation that imposes mandatory trading bans prior to company reports, I test the hypothesis that insiders will respond to such bans by trading in correlated stocks for which they are not classified as insiders. I fail to replicate the results from the existing literature on voluntary trading bans and find an ambiguous effect of the new legislation on bid-ask spreads. Furthermore, I find no evidence for substantial stock substitute trading. Possible reasons for the differences between my findings and the existing literature is discussed, and I conclude that previously found effects of insider blackout periods on bid-ask spreads are likely to be overstated.
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| 10. |
- Bång, Joakim, et al.
(författare)
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Pretty pennies : realtor attractiveness and home prices
- 2011
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Although buying one's home is by far the largest financial transaction in most people's lives, micro- level behavioral research on home pricing has been quite limited. We test for a simple behavioral effect; does the attractiveness of a realtor influence the final purchase price of a home? To do so, we take advantage of two unique structural characteristics of the Australian real estate market in which (i) buyers rarely use their own realtor and (ii) homes are commonly sold both by auction and by private treaty. Our results show that buyers pay a 2.3% average premium (approximately USD 16,000) for their house when the realtor is one standard deviation of attractiveness above average. This premium is concentrated in homes sold by auction, which is consistent with a behavioral interpretation where private treaty home buyers partially filter the impact of realtor appearance over time.
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