Hand sanitizer berbahan dasar alkohol menjadi kebutuhan penting di tengah pandemi COVID-19 untuk menjaga kebersihan tangan karena memiliki kapabilitas dalam membunuh mikroba. Masyarakat mulai berinisiatif dengan membuat hand sendiri memenuhi mengacu pada standar pembuatan formula oleh World Health Organization (WHO) menggunakan etanol sebagai bahan baku utama sehingga menciptakan kelangkaan dan...

abstract fluoride (f-) is an essential element for human and some animals. the fluoride concentration in irrigation water is an important index for water quality. the objective of the present study was to determine spatial variability of fluoride in groundwater and soils of some areas in arak plain. therefore, during two seasons, autumn (2007) and the end of spring (2008), 87 and 92 water sampl...

Background and Objectives. Presence of excessive nitrite and nitrate in foodstuff can have toxic and carcinogenic effects on humans. This study is aimed at measuring nitrate and nitrite in different foodstuffs available in Arak city market, Iran, in 2013. Methods. Totally 323 samples including stew (102 samples), beverage (116 samples), fruit (55 samples), and vegetables (50 samples) were rando...

BACKGROUND According to the reports of the World Health Organization 20% of world population suffer from pain and 33% of them suffer to some extent that they cannot live independently. METHODS This is a cross-sectional study which was conducted in the emergency department (ED) of Valiasr Hospital of Arak, Iran, in order to determine the causes of delay in prescription of analgesics and to con...

Stable ductile crack growth in 3 mm thick AISI 304 stainless steel specimens has been investigated experimentally and numerically. Multi-linear Isotropic Hardening method coupled with the Von-Mises yield criterion was adopted for modeling elasto-plastic behavior of the material. Mode-I CT fracture specimens have been tested to generate experimental load-displacement-crack growth data during sta...

The plaque-hke spindle poles in bakers ' yeast have been observed by several investigators, bu t the relaUonship of these structures to the nuclear envelope has not been clearly shown Several authors have noted an association of the p laque wi th a nuclear pore. Rob inow and 3,{arak (10) repor ted t h a t mitot ic spindle plaques were "se t in to" nuclear pores, and according to M o o r (7) pla...

Adaptive responses which occur under changing environment enable a species existence during long periods of time. This study aimed at investigating the relationship between body mass index (BMI and characteristic of brain in newborns. This study was undertaken on 1800 healthy live born singletons (822 males and 978 females) routinely delivered at the Gynecology Hospital of Arak Medical Sciences...

the main objective of this study was to arak city zoning geomorphological parameters of the model using fuzzy logic. in order to realize these objectives, 10 parameters including of height, distance from fault, distance from the main channel, distance from sub-channel, distance from road, slope percent, distance from settlements, terrain type, erosion potential and seismic vulnerability in the ...