| 1. |
- Andersson, Daniel, 1977, et al.
(författare)
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Supply Voltage Drop Study Considering On-Chip Self Inductance of a 32-bit Processor's Power Grid
- 2009
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Ingår i: 2009 IEEE Workshop on Signal Propagation on Interconnects, SPI '09; Strasbourg; France; 12 May 2009 through 15 May 2009. - 9781424444892
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Konferensbidrag (refereegranskat)abstract
- Conventional IR drop analysis suggests that on-chip inductive effects can be neglected when estimating supply voltage drops. We present a supply voltage drop analysis for a commercial 32-bit application processor. Our power grid model uses a backbone RL extracted netlist of the processor's power grid, complemented with capacitances from the processor design and a current signature defined by the worst-case switching test vector, located in the power-up sequence of the processor. Our circuit simulations show that on-chip self inductance makes the actual supply voltage drop deviate by more than 55% and 25% from the ∼6% and ∼8% drop, respectively, of nominal supply voltage that a conventional IR power grid model yields.
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| 2. |
- Andersson, Eva A., et al.
(författare)
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Physical activity for persons with obesity—a health project reported
- 2008
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Ingår i: Forum on Public Policy Online. - : Oxford Round Table. - 1938-9809. ; 4:Spring
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Tidskriftsartikel (refereegranskat)abstract
- In public health contexts, increased physical activity habits and fitness (aerobic and strength capacities) are positively related for promoting health and preventing and treating common diseases/problems, including obesity and overweight. A strongly graded inverse association between physical activity and obesity has been shown both for adults and children. However, a lower mortality risk has been shown for those with greater weight but good aerobic capacity than for those of recommended weight but less fit. On the basis of a health project with physical activity for persons with or without obesity, the paper discusses evidence-based methods for promoting physical activity. General guidelines for the amount of physical activity for persons are described, as are the numerous physiological and medical advantages of physical activity. The economic benefits are also illustrated. The paper exemplifies methods of measuring physical activity habits and physical fitness. These two factors must be observed when showing improvements in public-health contexts, including groups with obesity.
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| 3. |
- Andersson, Helena M., et al.
(författare)
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Neuromuscular fatigue and recovery in elite female soccer : effects of active recovery
- 2008
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Ingår i: Medicine & Science in Sports & Exercise. - : Ovid Technologies (Wolters Kluwer Health). - 0195-9131 .- 1530-0315. ; 40:2, s. 372-380
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: To investigate the time course of recovery from neuromuscular fatigue and some biochemical changes between two female soccer matches separated by an active or passive recovery regime. METHODS: Countermovement jump (CMJ), sprint performance, maximal isokinetic knee flexion and extension, creatine kinase (CK), urea, uric acid, and perceived muscle soreness were measured in 17 elite female soccer players before, immediately after, 5, 21, 45, 51, and 69 h after a first match, and immediately after a second match. Eight players performed active recovery (submaximal cycling at 60% of HRpeak and low-intensity resistance training at < 50% 1RM) 22 and 46 h after the first match. RESULTS: In response to the first match, a significant decrease in sprint performance (-3.0 +/- 0.5%), CMJ (-4.4 +/- 0.8%), peak torque in knee extension (-7.1 +/- 1.9%) and flexion (-9.4 +/- 1.8%), and an increase in CK (+ 152 +/- 28%), urea (15 +/- 2), uric acid (+ 11 +/- 2%), and muscle soreness occurred. Sprint ability was first to return to baseline (5 h) followed by urea and uric acid (21 h), isokinetic knee extension (27 h) and flexion (51 h), CK, and muscle soreness (69 h), whereas CMJ was still reduced at the beginning of the second match. There were no significant differences in the recovery pattern between the active and passive recovery groups. The magnitude of the neuromuscular and biochemical changes after the second match was similar to that observed after the first match. CONCLUSION: The present study reveals differences in the recovery pattern of the various neuromuscular and biochemical parameters in response to a female soccer match. The active recovery had no effects on the recovery pattern of the four neuromuscular and three biochemical parameters.
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| 4. |
- Andersson, Håkan, et al.
(författare)
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Träningslära för rullstolsåkning
- 2007
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Bok (populärvet., debatt m.m.)abstract
- Spridd över hela världen finns det mycket kunskap om rullstolsträning, men det har inte tidigare funnits samlat någonstans. Samtidigt finns behov av ytterligare forskning inom området. Flera års litteraturstudier, erfarenhets – och datainsamling samt forskningsstudier har resulterat i denna bok. En stor del av utrymmet i boken ägnas åt styrketräning då detta är viktigt ur ett idrotts- rehabiliterings- och folkhälsoperspektiv. Detta gäller för såväl rullstolsidrottare som andra rullstolsbrukare. Författarkvartetten som skrivit boken är sammantaget etablerade inom såväl den paralympiska som den olympiska idrotten och också i forskarvärlden.
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| 5. |
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Ekonomistyrningens metoder, sammanhang och utveckling : en vänbok till Lars A Samuelson
- 2005
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Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- Lars A Samuelson har efter en lång och framgångsrik akademisk karriär fyllt 65 år. Det vill redaktörer och författare till denna vänbok uppmärksamma. Bidragen ger ett smakprov på den stora bredd som karakteriserar Lars gärning. Olof Arwidi tar i sitt kapitel utgångspunkt i hans och Lars gemensamma artikel om budgeteringens utveckling fram till början av 1990-talet (Arwidi & Samuelson, 1993). Han beskriver och analyserar budgeteringens fortsatta utveckling fram till 2005. Steen Nielsen behandlar i sitt kapitel kalkyleringsfrågor. Närmare bestämt diskuterar och illustrerar han osäkerhet vid ABC-kalkylering, genom att simulera stokastiska ingångsvärden i Harvard-caset Classical Pen Company. Jan Mouritsen studerar i sitt bidrag till antologin användandet av finansiell och icke-finansiell information i offentlig sektor. Han knyter också användandet av information till olika ledarstilar och finner att användandet av information skiljer sig markant mellan olika ledarstilar. Mats Lundeberg analyserar Lars föreställningsram utifrån ett informations- och verksamhetsutvecklingsperspektiv. Fokus för analysen är samband och balans mellan olika styrmedel i Lars ramverk. Johnny Lind studerar sambanden mellan koncern-, affärsstrategi och ekonomistyrning utifrån en situationsteoretisk ansats. Ett tydligt resultat i studien var den starka finansiella dominansen i ekonomistyrningen oberoende av företagens strategiska inriktning. Göran Sjöholm ger en personlig skildring av en implementation av ett nytt ekonomisystem inom Alfa-Laval där Lars deltog som sakkunnig. Göran gör också en jämförelse med senare iakttagelser av ekonomistyrningens utveckling. Nils-Göran Olve ställer, med bakgrund av den utökade definitionen av ekonomistyrning och företeelser som balanserad styrning, frågan vilken styrning som är ekonomens. Han efterfrågar en ökad tydlighet kring ekonomens roll i företag och framhåller dessutom att en god ekonomistyrning kan bli en konkurrensfördel. Sten Jönsson argumenterar också för att akademin behöver återerövra det inflytande i den praktiska världen som bland annat Lars har haft. Detta försvåras dock av krav på publicering i internationella tidskrifter och medföljande globala likriktning. Men med hjälp av förståelse för praktikens logik och doktorer utbildade för praktikens behov finns det fortfarande hopp. Göran Nilsson behandlar i sitt kapitel styrningens utveckling genom att knyta an till begreppen rationell och normativ styrning. Han drar slutsatsen att styrningen under senare år återgått till att vara mer rationellt dominerad, vilket bland annat yttrar sig i en mer hierarkisk, finansiell och mekanistisk styrning. Lars Östman diskuterar konsekvenser av att styrningen under senare år alltmer sker på distans. Några sådana konsekvenser är att styrningen tenderar att baseras på ytligare kunskap om verksamheten och att verksamhetsmässiga överväganden alltmer får stå tillbaka för finansiella.
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| 6. |
- Eliasson, Jörgen, et al.
(författare)
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Maximal lengthening contractions increase p70 S6 kinase phosphorylation in human skeletal muscle in the absence of nutritional supply.
- 2006
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Ingår i: American Journal of Physiology. Endocrinology and Metabolism. - : American Physiological Society. - 0193-1849 .- 1522-1555. ; 291:6, s. 1197-1205
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to compare the training stimuli of eccentric (lengthening) and concentric (shortening) contractions regarding the effect on signaling enzymes involved in protein synthesis. Ten male subjects performed 4 x 6 maximal eccentric contractions on one leg followed by 4 x 6 maximal concentric contractions on the other. Six additional subjects performed the same protocol, but with maximal concentric and submaximal eccentric exercise of equal force to that of the maximal concentric contractions. Muscle biopsy samples were taken from the vastus lateralis before, immediately after, and 1 and 2 h after exercise in both legs. The average peak force produced during the maximal eccentric exercise was 31% higher than during the maximal concentric exercise, 2,490 (+/-100) vs. 1,894 (+/-108) N (P < 0.05). The maximal eccentric contractions led to two- to eightfold increases in the phosphorylation of p70 S6 kinase (p70(S6k)) and the ribosomal protein S6 that persisted for 2 h into recovery but no significant changes in phosphorylation of Akt or mammalian target of rapamycin (mTOR). Maximal concentric and submaximal eccentric contractions did not induce any significant changes in Akt, mTOR, p70(S6k), or S6 phosphorylation up to 2 h after the exercise. The results indicate that one session of maximal eccentric contractions activates p70(S6k) in human muscle via an Akt-independent pathway and suggest that maximal eccentric contractions are more effective than maximal concentric contractions in stimulating protein synthesis in the absence of a nutritional intake, an effect that may be mediated through a combination of greater tension and stretching of the muscle.
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| 7. |
- Faresjö, Tomas, 1954-, et al.
(författare)
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Tvillingstäder med stora sociala skillnader i folkhälsa - ett samhällsmedicinskt experiment inleds i Norrköping och Linköping : [Twin cities with big social differences when it comes to public health. A sociomedical "experiment" introduced in Norrkoping and Linkoping]
- 2007
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Ingår i: Läkartidningen. - : Läkartidningen Förlag AB. - 0023-7205 .- 1652-7518. ; 104:23, s. 1788-1790
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Tidskriftsartikel (refereegranskat)abstract
- An interdisciplinary research group entitled ”Twincities Research Group” has been initiated at Linköping University. The term twin cities refer to the Swedish cities Linköping and Norrköping, neighbours that are nearly equal in size. These two cities, located within a distance of only 40 km, are governed by the same county council and consequently have the same health care structure. However, health is remarkably different in these twin cities. The comparison of public health in these two cities during the development from the industrial to the post-industrial era has a design similar to classical experiments with a control and an experiment group, since the social history and the socio-economic structures of the cities are radically different. Through an interdisciplinary research design including historical, epidemiological and clinical competence we have a unique opportunity to increase our understanding of how social environment may affect public health.
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| 8. |
- Garvin, Peter, 1976-, et al.
(författare)
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Psychosocial factors in atherosclerosis
- 2006
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Ingår i: XIV International Symposium on Atherosclerosis,2006.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 9. |
- Gullstrand, Lennart, et al.
(författare)
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A new method for recording the temporal pattern of stride during treadmill running
- 2009
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Ingår i: Sports Engineering. - : Springer Science and Business Media LLC. - 1369-7072 .- 1460-2687. ; :11, s. 195-200
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to investigate the reliability of a new infrared light based method (IR40) for recording temporal stride patterns during treadmill running. The IR40 device, emitting a tight web of 40 infrared light beams 10 mm above the treadmill running surface, was compared to a previously validated electro-pneumatic contact shoe (CS) method while nine well-trained athletes ran at 2.8, 3.3, 3.9, 4.4, 5.0, and 5.6 m s−1. Disconnection and reconnection of the IR beams marked the stance phase. The sampling rate was 500 Hz for both methods. The stance phase duration was on average 11.5 (±8.4) ms longer with the IR40 than with the CS depending on earlier touch down (8.3 ± 6.2 ms) and delayed toe off (3.2 ± 5.3 ms) registrations. Significantly different stance phases were recorded between all velocities and for both methods. Thus, despite the fact that the IR40 systematically measured a somewhat longer stance phase duration than CS, the IR40 is nonetheless useful for temporal stride analysis during treadmill running.
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| 10. |
- Gullstrand, Lennart, et al.
(författare)
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Measurements of vertical displacement in running, a methodological comparison
- 2009
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Ingår i: Gait & Posture. - : Elsevier BV. - 0966-6362 .- 1879-2219. ; 30:1, s. 71-75
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Tidskriftsartikel (refereegranskat)abstract
- The aim was (1) to evaluate measurements of vertical displacements (V-disp) of a single point on sacrum as an estimate of the whole body centre of mass (CoM) V-disp during treadmill running and (2) to compare three methods for measuring this single point. These methods were based on a position transducer(PT), accelerometers (AMs) and an optoelectronic motion capture system. Criterion method was V-disp of the whole body CoM measured with the motion capture system. Thirteen subjects ran at 10, 12, 14, 16. 18, 20 and 22 km h(-1) with synchronous recordings with the three methods. Four measurements of the (V-disp) were derived: (1) V-disp of CoM calculated from a segment model consisting of 13 segments tracked with 36 reflective markets, (2) V-disp of the sacrum recorded with the PT, (3) V-disp of the sacrum Calculated from the AM, and (4) V-disp of the sacrum calculated as the mid point of two reflective markets (sacrum marker, SM) attached at the level of the sacral bone. The systematic discrepancy between the Measurements of sacrum V-disp and CoM V-disp varied between 0 and 1.5 mm and decreased with increasing running velocity and decreasing step duration. PT and SM measurements showed strong correlation, whereas the AM showed a variability increasing with velocity. The random discrepancy within each Subject was 7 mm for all three methods. In conclusion single-point recordings of the sacrum V-disp may be used to monitor changes in V-disp of CoM during treadmill running.
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