| 1. |
- Grubb, Anders, et al.
(författare)
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Reduction in glomerular pore size is not restricted to pregnant women. Evidence for a new syndrome: 'Shrunken pore syndrome'.
- 2015
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Ingår i: Scandinavian Journal of Clinical & Laboratory Investigation. - : Informa UK Limited. - 1502-7686 .- 0036-5513. ; 75:4, s. 333-340
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Tidskriftsartikel (refereegranskat)abstract
- The plasma levels of cystatin C, β2-microglobulin, beta-trace protein, retinol binding protein (RBP) and creatinine were determined in plasma samples from 111 randomly selected patients with eGFRcystatin C ≤ 60% of eGFRcreatinine and from 55 control patients with 0.9eGFRcreatinine ≤ eGFRcystatin C ≤ 1.1eGFRcreatinine (eGFRcystatin C ≈ eGFRcreatinine). The concentration ratios of cystatin C/creatinine, β2-microglobulin/creatinine, beta-trace protein/creatinine and RBP/creatinine were significantly higher in patients with eGFRcystatin C ≤ 60% of eGFRcreatinine than in patients with eGFRcystatin C ≈ eGFRcreatinine. When the patients were divided into three groups with different estimated GFR intervals (≤ 40, 40-60 and ≥ 60 mL/min/1.73m(2)) the concentration ratios of cystatin C/creatinine, β2-microglobulin/creatinine, and beta-trace protein/creatinine were significantly higher in patients with eGFRcystatin C ≤ 60% of eGFRcreatinine than in patients with eGFRcystatin C ≈ eGFRcreatinine for all GFR intervals. Similar results were obtained when the population without pregnant women was studied as well as the subpopulations of men or of non-pregnant women. Populations of pre-eclamptic women and pregnant women in the third trimester display similar results. Since the production of these four proteins with sizes similar to that of cystatin C is not co-regulated, the most likely explanation for the simultaneous increase of their creatinine-ratios in patients with eGFRcystatin C ≤ 60% of eGFRcreatinine is that their elimination by glomerular filtration is decreased. We suggest that this is due to a reduction in pore diameter of the glomerular membrane and propose the designation 'Shrunken pore syndrome' for this pathophysiological state.
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| 2. |
- Lindgren, Anders, et al.
(författare)
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Future directions in ad hoc networking research
- 2005
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Ingår i: 5th Scandinavian Workshop on Wireless Ad-hoc Networks. - Stockholm : Wireless at KTH, Royal institute of technology.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Much effort has gone into mobile ad-hoc network (MANET) research over the past decade. Yet, even today, mobile ad-hoc networking is seen as a relatively new area of research. The reason for this can be traced to the fact that the maturity in truly understanding these networks is still alarmingly low and actual deployment of these networks rare. In this paper, we investigate the reasons for this lack and suggest ways for overcoming the shortcomings. We then describe four sub-topics in ad hoc networking that have not received much attention, but are crucial for making real deployment of MANETs feasible.
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| 3. |
- Nyberg, Gustav, et al.
(författare)
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SEMO: a policy-based system for handovers in heterogeneous networks
- 2006
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Ingår i: International Conference on Wireless and Mobile Communications. - Los Alamitos, Calif : IEEE Communications Society. - 0769526292 ; , s. 62-
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Konferensbidrag (refereegranskat)abstract
- A vision of future wireless networks is the coexistence of multiple access network technologies. Different access networks will coexist and the Internet Protocol will be the glue. To fulfil this vision, one of the greatest challenges is to develop sophisticated policies for vertical handovers. When and in what way the handovers are performed, affects the performance of the mobile services. Traditional handover policies are based on received signal strength comparison. To be able to support vertical handover, policies have to consider parameters such as capacity, utilization cost, power consumption, security and QoS guarantees. This paper describes a proposal for a policy-based vertical handover model for heterogeneous networks. Analysis, design, implementation and evaluation of "SEMO", a policy-based vertical handover system, are presented.
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