Showing posts with label Covalent bonds. Show all posts
Showing posts with label Covalent bonds. Show all posts

Tuesday, 16 April 2019

Chemical Sciences Journal- Lupine Publishers

Air Quality in Welding Workshops and Its Health Implication on Welders in Port Harcourt by Chukwu Okeah GO in Archives of Organic and Inorganic Chemical Sciences in Lupine Publishers

The study was carried out in Port Harcourt to ascertain the air quality status of air in welding workshops and the health implication on welders in Port Harcourt. Five objectives alongside five research questions were set to guide in the achievement of the aim of the study. The experimental and the cross sectional research design were adopted in carrying out this study. A total of 217 welders were sampled for the study out of a total of 496 registered welders in Port Harcourt. The probability sampling technique was used in determining the sample population for the study. Descriptive statistics was used in the analysis of the data collected from the respondents. The findings of the study revealed that the air quality in the welders shop does not meet internationally accepted standards, the use of personal protective equipments is still not in its full state hence endangering lives of the welders and that large number of welders have suffered from catarrh, cough, Heart ache, waist pain skin rashes and breathing difficulty. The study recommended that health is wealth; therefore if welders must be in optimal health conditions, occupational based illness must be reduced. On the basis of this health checks for every worker must be done quarterly to verify the health status of every welder as to reduce their health risk. It also recommended that there is need for quarterly air quality assessment to be done to assess the air quality status of the welder's worksite and then identify generators/sources of pollutants, so as to reduce their occurrence.

https://www.lupinepublishers.com/chemistry-journal/fulltext/air-quality-in-welding-workshops-and-its-health-implication-on-welders-in-port-harcourt.ID.000138.php

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Tuesday, 11 December 2018

Level of Some Adipokines in Obese Type 2 Diabetic Egyptian Patients with Coronary Artery Stenosis (AOICS) - Lupine Publishers

Level of Some Adipokines in Obese Type 2 Diabetic Egyptian Patients with Coronary Artery Stenosis (AOICS) - Lupine Publishers

Cardiovascular diseases (CVD) are the leading global cause of death accounting for 17.5 million deaths per year, a number that is expected to grow to more than 23.6 million by 2030. Cardiovascular diseases result mainly from atherosclerosis which involves a chronic and progressive inflammatory response of the vessel wall to injuries promoted by risk factors such as hypertension, dyslipidemia, diabetes and others. Type 2 diabetes mellitus (T2DM) is usually proceeded with a state of insulin resistance or insufficient insulin signal pathways that plays a crucial role in the pathogenesis of the disease and its associated complication.


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Thursday, 22 November 2018

Perspectives over the Brazilian Iron-Niobium Production (AOICS)- Lupine publishers

Perspectives over the Brazilian Iron-Niobium Production (AOICS)- Lupine publishers

Niobium is a chemical element, symbol Nb, atomic number 41 (41 protons and 41 electrons) and atomic mass 92.9 u. It is a transition element belonging to the group 5 or 5B of the periodic classification of the elements. The name derives from the Greek goddess Niobe, daughter of Dione and Tantalus - the latter, in turn gave name to another element of the family 5B, tantalum. It is used mainly in alloys of steel for the production of conductive tubes of fluids. Under normal conditions, it is solid. It was discovered in 1801 by the Englishman Charles Hatchett [1].


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Prediction of Physico-Chemical Properties for Polycyclic Aromatic Hydrocarbons Based on Electronic Characteristics of Molecules

Abstract QSPR models have been developed to predict of polycyclic aromatic hydrocarbons (PAHs) based on quantum chemical and integr...