A low-cost system for monitoring pH, dissolved oxygen and algal density in continuous culture of microalgae.

In a continuous and closed system of culturing microalgae, constantly monitoring and controlling pH, dissolved oxygen (DO) and microalgal density in the cultivation environment are paramount, which ultimately influence on the growth rate and quality of the microalgae products. Apart from the pH and DO parameters, the density of microalgae can be used to contemplate what light condition in the culture chamber is or when nutrients should be supplemented, which both also decide productivity of the cultivation. Moreover, the microalgal density is considered as an indicator indicating when the microalgae can be harvested.

Preparation of Cas9 Ribonucleoproteins for Genome Editing.

Genome editing by the delivery of pre-assembled Cas9 ribonucleoproteins (Cas9 RNP) is an increasingly popular approach for cell types that are difficult to manipulate genetically by the conventional plasmid and viral methods. Cas9 RNP editing is robust, precise, capable of multiplexing, and free of genetic materials. Its transient presence in cells limits residual editing activity.

Safety And Efficacy of Clonidine for Acute Hypertensive Urgency in an Older and Hospitalized Population.

To describe the use of clonidine in hospitalized older people for acute management of hypertension. This was an observational retrospective cross-sectional chart review study. Older people hospitalized between November 2017 and November 2018, with a one-time or as-needed clonidine order were eligible, and a random sample of these patients were included.

Non-coding RNA and lung cancer progression.

Lung cancer (LC) is a major killer disease globally. This situation is further supported by yearly increase in new LC cases and its poor 5-year survival which is less than 15%. Although a large percentage of LC cases have been attributed to smoking, a considerable amount of nonsmokers also develops this disease, thereby suggesting a genetic and/or epigenetic undertone to LC development.

The Effect of Bleeding Risk and Frailty Status on Anticoagulation Patterns in Octogenarians With Atrial Fibrillation: The FRAIL-AF Study.

Background: Older adults are at increased risk of atrial fibrillation (AF), its thromboembolic complications, and bleeding. A significant percentage of octogenarians do not receive anticoagulation therapy. The objective of this study was to investigate the effect of thromboembolic risk, bleeding risk, and frailty on the anticoagulation status of octogenarians hospitalized with AF.

The impact of different multi-walled carbon nanotubes on the X-band microwave absorption of their epoxy nanocomposites.

Background: Carbon nanotube (CNT) characteristics, besides the processing conditions, can change significantly the microwave absorption behavior of CNT/polymer composites. In this study, we investigated the influence of three commercial multi-walled CNT materials with various diameters and length-to-diameter aspect ratios on the X-band microwave absorption of epoxy nanocomposites with CNT contents from 0.125 to 2 wt%, prepared by two dispersion methods, i.