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排序方式: 共有166条查询结果,搜索用时 46 毫秒
31.
The levels of As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn and Hg are estimated by atomic absorption in the muscle of six commercial species of fish belonging to five freshwater lakes of Pakistan. The species included Mastacembelus armatus, Tor putitura, Mystus seenghala, Wallago attu, Catla catla and Labeo rohita. The fish were procured in comparable weight ranges so that a viable comparison of trace metal content could be effected. As, Fe, Pb, Zn and Hg showed elevated levels of 0.006–6.967, 0.933–6.133, 0.060–4.108, 0.978–5.363 and 0.030–3.211 μg/g, wet weight. The relevant statistical parameters, such as standard deviation, standard error, skewness and its t‐value are also reported for establishing the randomness of the distribution in relation to the corresponding data of freshwater lakes of the world and examined in view of species‐specificity and origin. 相似文献
32.
Biman Das Ashraf A. Shikdar 《International journal of occupational safety and ergonomics》2013,19(3):417-430
AbstractThe participative standard with feedback condition was superior to the assigned difficult (140% of normal) standard with feedback condition in terms of worker productivity. The percentage increase in worker productivity with the participative standard and feedback condition was 46%, whereas the increase in the assigned difficult standard with feedback was 23%, compared to the control group (no standard, no feedback). Worker productivity also Improved significantly as a result of assigning a normal (100%) production standard with feedback, compared to the control group, and the increase was 12%. The participative standard with feedback condition emerges as the optimum strategy for improving worker productivity in a repetitive industrial production task. 相似文献
33.
Jehangir Alishba Imtiaz Maleeha Salman Verda 《Journal of Material Cycles and Waste Management》2022,24(4):1612-1622
Journal of Material Cycles and Waste Management - The excessive consumption of single-use plastic bags in recent years has fueled plastic pollution leading to considerable adverse consequences for... 相似文献
34.
Environmental Fluid Mechanics - Ancient Egyptian obelisks have been carved thousands of years ago and survived many earthquakes and wind storms. This study examines the aerodynamic characteristics... 相似文献
35.
Ashraf Mahsoon Zeshan Muhammad Hafeez Sadia Hussain Rahib Qadir Abdul Majid Muzaffar Ahmad Farman Ahmad Sajid Rashid 《Environmental science and pollution research international》2022,29(25):37129-37143
Environmental Science and Pollution Research - This study investigated the seasonal and temporal variations in the extent and source of physiochemical and toxic trace elements in the Lakhodair... 相似文献
36.
Ashraf Muhammad Arslan Rasheed Rizwan Hussain Iqbal Iqbal Muhammad Farooq Muhammad Umar Saleem Muhammad Hamzah Ali Shafaqat 《Environmental science and pollution research international》2022,29(30):45527-45548
Environmental Science and Pollution Research - The present study was undertaken to appraise the efficacy of exogenous taurine in alleviating boron (B) and chromium (Cr) toxicity. Taurine protects... 相似文献
37.
Karthika Chenmala Sureshkumar Raman Sajini Deepak Vasudevan Ashraf Ghulam Md. Rahman Md. Habibur 《Environmental science and pollution research international》2022,29(42):63202-63215
Environmental Science and Pollution Research - Colorectal cancer was inducted in Wister rats using titanium dioxide nanoparticles (TiO2NPs) and dimethylhydrazine (DMH) and treatment using... 相似文献
38.
The effect of biochar on severity of soil water repellency of crude oil-contaminated soil 总被引:2,自引:0,他引:2
Ebrahimzadeh Omran Samaneh Shorafa Mehdi Zolfaghari Ali Asghar Soltani Toolarood Ali Ashraf 《Environmental science and pollution research international》2020,27(6):6022-6032
Environmental Science and Pollution Research - Crude oil contamination adversely affects soil water repellency. In this study the effect of biochar on this soil characteristic has been investigated... 相似文献
39.
Narayanan Siju Ellickal Rehuman Nisha Abdul Harilal Seetha Vincent Anju Rajamma Rajalakshmi Ganesan Behl Tapan Uddin Md. Sahab Ashraf Ghulam Md Mathew Bijo 《Environmental science and pollution research international》2020,27(35):43542-43552
Environmental Science and Pollution Research - Zinc (Zn) is an essential trace element for most organisms, including human beings. It plays a crucial role in several physiological processes such as... 相似文献
40.
Amjad Adnan Randhawa Muhammad Atif Javed Muhammad Sameem Muhammad Zafarullah Ashraf Mussawar Ahmad Zulfiqar Murtaza Shamas 《Environmental science and pollution research international》2020,27(32):39693-39701
Environmental Science and Pollution Research - This study was designed to assess the gradual increase in the use of insecticides on vegetables and to familiarize the consumers regarding the... 相似文献