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Chronic kidney disease (CKD) is a major health problem that contributes to the development of cardiovascular disorders such as heart failure and arteriosclerotic cardiovascular disease (ACVD). The aims of this study were to determine the prevalence of CKD and to assess its association with ACVD and cardiometabolic risk factors.Cross-sectional observational study conducted in primary care setting. Population-based random sample: 6,588 people between 18 and 102 years old (response rate: 66%). Crude and sex- and age-adjusted prevalence rates of CKD according to KDIGO were determined by assessing albuminuria and estimated glomerular filtration rate according to CKD-EPI, and their associations with cardiometabolic factors and ACVD were determined.The crude prevalence of CKD was 11.48% (95%CI: 10.72-12.27%), without significant difference between men (11.64% [95%CI: 10.49-12.86%]) and women (11.35% [95%CI: 10.34-12.41%]). The age- and sex-adjusted prevalence rate of CKD was 9.16% (men: 8.61%; women: 9.69%). The prevalence of low estimated glomerular filtration rate (60mL/min/1.73mThe adjusted prevalence of CKD was 9.2% (low estimated glomerular filtration rate: 8.0%; albuminuria: 6.0%). Most of the patients with CKD had very high cardiovascular risk. Hypertension, diabetes, prediabetes, increased waist-to-height ratio and ACVD were independently associated with CKD.

The stoneflies and caddisflies of North Africa are still poorly known as vast areas of Algeria have yet to be investigated. A survey of the macroinvertebrates of the Seybouse River, northeast Algeria, was carried out from July 2014 to December 2016. Three species of stoneflies (Capnopsis schilleri, Capnioneura petitpierreae, and Tyrrhenoleuctra tangerina) and five taxa of caddisflies (Mesophylax aspersus, Hydropsyche maroccana, H. resmineda, H. artax/lobata, and H. gr. pellucidula) were identified. All taxa are new records to the Seybouse River and seven of them are new to northeastern Algeria. A multivariate analysis indicated that the Hydropsychidae exhibited a clear longitudinal gradient along the Seybouse River while Mesophylax aspersus seemed adapted to species-poor, intermittent streams. Further investigations of the stoneflies and caddisflies may inform conservation efforts and will prove useful to monitor the Seybouse River and similarly threatened North African rivers and streams.

In the application of speckle velocimetry to real physical situations in phisics of fluids (fundamentally, in the PIV mode) several problems arise. The analysis of the information stored in a specklegram only is reasonably available if a automatic method is carried out. The fundamental problem is however the quantity and quality of such information. The research has followed fundamentally two approach, one in which the principal task is the automatic adquisition of information from the fringe pattern and other in which the principal goal is the formation of reasonably good fringe pattern. In this line, two methods, the multiple exposure and the two-step or copy one has been implemented that show a good performance. There are however certain physical situations in which a ntmiber of problems arise , between them , the apparition of non regular fringe pattern. The experiment proposed here try to reach a more profund insight into de problem so as a systematic research about the relation between speckle photography (SP) and holographic interferometry (HI).