Several wave-lengths can be used for an element analysis on atomic absorption spectrophotometry [1]. Et Park et al. [2] wrote that the wave-length of cobalt determination can be changed. So this time the researchers tried to find out the better wave length for cadmium (Cd) analysis. The researchers found that the flat state from the minus to the plus seems to be good for the appropriate Cd analysis (Figure 1). There is another thing for the appropriate wave length; the thing is the pillar near the 228.9 nanometer.

Background and objective: The Laryngeal Mask Airway-Supreme is a single-use supraglottic airway device that offers gastric access. The present study compares the safety and efficacy of LMA Supreme with Endotracheal tube (ETT) in adult patients undergoing laparoscopic procedures. Methods: In this prospective study eighty patients of either sex, ASA grade I & II, were randomly assigned to LMA-Supreme and ETT for airway management and intraoperative ventilation. After induction of general anesthesia, devices were inserted, correct placement was verified, airway leak was noted, and a gastric tube was inserted. Insertion success rates and time, ventilatory capability, efficacy of seal, risk of gastric distension and hemodynamic responses were investigated. Results: The insertion of LMA-S was comparatively easier and required lesser time for insertion than ETT.Ventilation parameters and airway pressure during peritoneal insufflations, for LMA-S and ETT were comparable.LMA-S and ETT show similar efficacy during laparoscopic surgery with controlled ventilation. No gastric distension or signs of regurgitation were detected in both groups. The hemodynamic responses to insertion and removal were greater for the ETT than LMA-S.Complications or pharyngo-laryngeal morbidity was less with LMA-S as compared to ETT. Conclusions: The LMA-S is a safe, efficacious and easy-to-use, supraglottic airway device during general anaesthesia for normal as well as laparoscopic procedure. It provides a functional airway seal with minimum adverse events.

Objective: Reflect on the use of digital technology as a teaching strategy to face the pandemic. Method: Reflective study. Results: The study allowed reflections on the use of digital technologies for the teaching and learning process in order to reduce the damage caused by the pandemic. Final considerations: This reflection can contribute to rethinking about digital technologies as a teaching strategy to face the pandemic.

Officially connecting to the global Internet since 1997, after more than 20 years, the development of the Internet in Vietnam has made an important contribution to the economic, cultural, and social development of the country. By 2019, the percentage of the population using the Internet in Vietnam is more than 67%, of which a large part are teenagers, and students. From the degradation of the current internet culture, especially the behavioral culture, it requires the cooperation of the entire political system, social organizations, of each person towards building a network culture environment really healthy. This study focuses on analyzing the behavior of students on social networks, the impact of such behaviors on students' culture of behavior, from which proposing solutions to promote the positive side and limit the negative side of social networking behaviors to the current student behavioral culture.

Adequate information on the effects of irrigation on soil physical and chemical properties is critical as it substantially helps in ensuring environmental sustainability. To achieve this, two farmers plot were investigated at Gidan Arju village based on similarities in farming activities. Two profile pits were dug one for each plot and named IrrP1 and IrrP2 respectively. Soil samples collected from the genetic horizon each pedons. The samples were analysed for their physico-chemical properties. The pedons were sandy loam and sandy clay loam in texture at surface and subsurface horizons respectively. The BD was moderate for both pedons. The soil pH (H2O) ranged between 7.9-10 and was rated alkaline to strongly alkaline. Statistically, there was no significant variation between the two pedons. However, the entire samples were marginal in total porosity, OC, AP and low in EC. Total nitrogen, CEC, exchangeable Na, K, Mg and Ca were rated high. Correlation analysis showed insignificant, but negative relationship of BD with TN (r = -0.562), CEC (r = -0.304) and PBS (r = -0.396). From the results of our study it is recommended that phosphate fertilizer and manure should be supplemented to enhance nutrient status of the soils. Similarly, good quality irrigation water was also recommended to improve the soil pH.