ultraviolet radiation absorption by sunglasses available through iranian optician trade ::union:: and miscellaneous vendors

بررسی فراوانی عینک‌های آفتابی غیراستاندارد عرضه شده توسط دستفروشان شهر تهران سال 89

Abstract Background: Solar light has various electromagnetic radiations include Ultraviolet, Visible & infrared rays. Overexposure to solar ultraviolet radiations can lead to some dangerous disorders and usage of non standard sunglasses can increase foregoing harmful effects. In Iran cataract is the most common disorder produced by UV rays. This study aims to measure the transmission of ultr...

Stepping carefully through trade union legislation.

Impacting working conditions through trade union training.

OBJECTIVE This article presents a training course in work analysis via an understanding of real work. The course was aimed at trade unionists and was produced by researchers in ergonomics and occupational medicine. Designing this type of training is closely associated with the history of ergonomics in France and goes back to the basic principles: training by and for action, focusing on the conc...

Ultraviolet protective properties of branded and unbranded sunglasses available in the Indian market in UV phototherapy chambers.

BACKGROUND Patients receiving phototherapy for various dermatoses are at increased risk of eye damage due to ultraviolet (UV) rays. They are prescribed UV protective sunglasses by dermatologists but their exact protecting effects are not known. AIM To study the ultraviolet protective properties of branded and unbranded UV protective sunglasses available in the Indian market, in UV phototherap...

Currency ::union:: and Bilateral Trade: Evidence from OIC Countries

In recent years, there has been an increasing interest in currency :union:s internationally. The formation of currency :union: in Organization of Islamic Cooperation (OIC) has drawn much attention of Islamic countries. This paper aims to investigate the effect of currency :union: formation for trade among 49 Islamic countries over the period 1990-2012 by OCA and Augmented Gravity Model (AGM). T...

Trade :union:s, trade :union: movement, trade :union:s, political sphere of Iran

The research, which is written using the approach of historical sociology and descriptive and analytical methods, examines the interactions of trade unions after the Islamic Revolution. The examinations show that the first trade unions or trade unions emerged in England in the early eighteenth century. In Iran, too, the tendency towards trade unions is related to the years before the Constituti...