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Articles by Aimée E. van Dijk in JoVE
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Çocuklarda Ölçme Kardiyak Otonom Sinir Sistemi (ANS) Faaliyet
Aimée E. van Dijk*1,2, René van Lien*3,4, Manon van Eijsden2,5, Reinoud J. B. J. Gemke6, Tanja G. M. Vrijkotte1, Eco J. de Geus3,4
1Department of Public Health, Academic Medical Center - University of Amsterdam, 2Department of Epidemiology, Documentation and Health Promotion, Public Health Service of Amsterdam (GGD), 3Department of Biological Psychology, VU University, 4EMGO+ Institute, VU University Medical Center, 5Institute of Health Sciences, VU University, 6Department of Pediatrics, VU University Medical Center
Otonom sinir sistemi aktivitesi ölçümü genellikle sınırları çocuklara korkutucu bir ortam sağlayabilir laboratuar, için araştırmacı ve katılımcı. VU Üniversitesi Gezici İzleme Sistemi (VU-AMS) cihaz herhangi bir ortamda kardiyak otonomik kontrolü kaydedebilirsiniz. VU-AMS çocuklarda test için çok müsait olduğunu kanıtladı.
Other articles by Aimée E. van Dijk on PubMed
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High Salinity Wastewater Treatment Using Yeast and Bacterial Membrane Bioreactors
Water Science and Technology : a Journal of the International Association on Water Pollution Research.
2002 |
Pubmed ID: 12448470 Two laboratory-scale membrane bioreactor systems were investigated to treat high salinity wastewater containing high organic (5,000 mg/L COD) and salt content (32 g/L NaCl), namely: (1) the Yeast Membrane Bioreactor (YMBR) and; (2) Yeast pretreatment followed by Bacterial Membrane Bioreactor (BMBR). In the YMBR system, experimental runs were conducted with a mean biomass concentration of 12 g MLSS/L. Here the maximum COD removal rate of 0.93 g COD/g MLSS x day was obtained at F/M of 1.5 g COD/g MLSS.d. Whereas, the BMBR system was operated with a biomass concentration of up to 25 g MLSS/L, resulting in maximum COD removal rate of 0.32 kg COD/kg MLSS x day at F/M ratio of 0.4. In comparison to BMBR, YMBR could obtain higher COD removal rate at higher organic loading, indicating the potential of a yeast reactor system to treat high salinity wastewater containing high organic concentration. Transmembrane pressure in BMBR was progressively increased from 2 to 60 kPa after 12 d, 6 d and 2 d at a hydraulic retention time (HRT) of 14 h, 9 h and 4 h, with average biomass concentration of 6.1, 15 and 20 g MLSS/L, respectively. Whereas the transmembrane pressure in YMBR has increased from 2 to 60 kPa only after 76 days of operation, with an average biomass concentration of 12 MLSS/L and an operating HRT range of 5-32 h.
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[Myocardial Infarction in AIDS]
Annales Françaises D'anesthèsie Et De Rèanimation.
Nov, 2002 |
Pubmed ID: 12494811 We report two cases of myocardial infarction, in young HIV positive patients seen in the Emergency Department. These patients were under treatments: for one, an association of nucleosidic inhibitors, and for the other one, the combination of nucleosic analogue inhibitor with a non nucleosic analogue; in the last case, the patient underwent, few months before, a treatment containing a protease inhibitor. In both cases, the pain wasn't typical and didn't refer to a coronary heart disease. Lipid tests were normal. The diagnosis has been made quickly and allows a coronary angioplasty with a favourable issue. Authors are arguing the characteristics of this cardiac pathology, recently discovered in HIV positive patients, and do insist on the need to think at a coronary heart disease in front of any chest pain symptom even unusual.
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Influence of Flocculation and Adsorption As Pretreatment on the Fouling of Ultrafiltration and Nanofiltration Membranes: Application with Biologically Treated Sewage Effluent
Environmental Science & Technology.
May, 2005 |
Pubmed ID: 15952397 Membrane fouling is a critical limitation on the application of membranes to wastewater reuse. This work aims to understand the fouling phenomenon which occurs in ultrafiltration (UF; 17500 molecular weight cutoff (MWCO)) and nanofiltration (NF; 250 MWCO) membranes, with and without pretreatment. For this purpose, the molecular weight (MW) distribution of the organics has been used as a parameter to characterize the influent, the permeate, and the foulant on the membrane surface. The variation of foulant concentration on the membrane due to pretreatment of the influent by flocculation and/or adsorption was investigated in detail. With the UF membrane, the peak of the MW distribution of organics in the permeate depended on the pretreatment; for example, the weight-averaged MW (Mw) of 675 without pretreatment shifted down to 314 with pretreatment. In the case of the NF membrane, the Mw of organics in the permeate was 478 (without pretreatment) and 310 (with flocculation followed by adsorption). The Mw of the organics in the foulant on the membrane surface was 513 (UF) and 192 (NF) without pretreatment and 351 (UF) and 183 (NF) after pretreatment with flocculation followed by adsorption, respectively. Without the pretreatment, the foulant concentration was higher on both membranes. The difference was more significant on the UF membrane than on the NF membrane. For both membranes, the flocculation-and-then-adsorption pretreatment proved very effective.
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ADP Ribosylation Factor Like 2 (Arl2) Protein Influences Microtubule Dynamics in Breast Cancer Cells
Experimental Cell Research.
Feb, 2007 |
Pubmed ID: 17188265 ADP ribosylation factor like 2 (Arl2) protein is involved in the folding of tubulin peptides. Variants of the human adenocarcinoma line MCF7 cells with increased or reduced content of Arl2 protein were produced and characterized. Western blot analysis performed after separation of the different fractions of tubulins showed that the content in polymerizable soluble heterodimers was significantly increased in cells with the highest Arl2 expression level (MA+) and reduced in cells with the lowest Arl2 expression level (MA-) in comparison to control cells (MP). Microtubule dynamic instability, measured after microinjection of rhodamine-labelled tubulin in living cells, was significantly enhanced in MA+ cells and reduced in MA- cells. These alterations involved modifications of the microtubule growth and shortening rates, duration of attenuation phases, percentage of time spent in each phase (growth, shortening and attenuation) and catastrophe frequency. We also observed modifications in the expression level of the tumor suppressor protein phosphatase 2Ac, which has been shown to form a complex with Arl2. Finally, cell cycle progression was modified in these cells, particularly in regard to duration of telophase. In summary, alterations in Arl2 protein content were found to be associated with modifications in tubulin pools, microtubule dynamics as well as cell cycle progression.
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Reliability of a New Method for Lower-extremity Measurements Based on Stereoradiographic Three-dimensional Reconstruction
Orthopaedics & Traumatology, Surgery & Research : OTSR.
Sep, 2012 |
Pubmed ID: 22858107 Several clinical and radiological techniques have been described to assess lower limb length and angle measurements. None of them has yet met the ideal criteria for a reliable, reproducible, safe, and inexpensive system. In this context, a new biplanar X-ray system (EOSâ„¢, EOS imaging, Paris, France) makes it possible to obtain a 3D reconstruction of the lower extremities from two 2D orthogonal radiographic images, with associated calculation of 3D measurements. The reliability of this technique has never been documented on adults.
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