Divided We Stand

The Battle Against COVID-19: Where Do We Stand Now?

Microbial deterioration of stored water for users supplied by stand-pipes and ground-tanks in a peri-urban community

Two forms of water service delivery in peri-urban settlements in the eThekwini municipal region are communal stand-pipes and household ground-tanks. Water from these sources requires storage prior to use. Previous studies have shown that water quality tends to deteriorate during storage. This study was conducted during the winter season and tested water from standpipe and ground-tank households...

Effect of the Postural Challenge on the Dependence of the Cardiovascular Control Complexity on Age

Short-term complexity of heart period (HP) and systolic arterial pressure (SAP) was computed to detect age and gender influences over cardiovascular control in resting supine condition (REST) and during standing (STAND). Healthy subjects (n = 110, men = 55) were equally divided into five groups (21–30; 31–40; 41–50; 51–60; and 61–70 years of age). HP and SAP series were recorded for 15 min at R...

Structuration d’un peuplement hétérogène au moyen d’éclaircies locales

Local rules optimization in a mixed stand. We present a treemarking model based on local rules, which optimizes the structure of the stand. The stand is divided into plots with constant number of trees. A plot is described by the number of trees in diameter classes for each species. These variables are random variables and their probability law are modeled by a mixture of multinomial distributi...

The effect of dual task training on sit to stand postural control of elderly women with a history of falling

The purpose of the present study was to investigate the effect of dual task training including balance sit-to-stand and cognitive exercises on postural control of sit to stand of elderly women with a history of falling. 15 elderly women were randomly divided into control (n=7) and experimental (n=8) groups. Participants implemented training protocol for four weeks in both experimental (balance ...

Novel Approach for Optimal Sizing of Stand-alone Hybrid Photovoltaic/Wind Systems

Nowadays using of new energies in the form of dispersed resources in the worlds is wide spreading. In this article we will design a dispersed production source in the form of a solar/wind hybrid power plant in order to supply the energy of a residential unit according to a sample load pattern. The aim of aforementioned design is to reduce its costs in a period of 20 years. In order to optimi...