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71.
Seyyed Jalil Mirmohammadi Amir Houshang Mehrparvar Mehrdad Mostaghaci Maryam Bahaloo Samaneh Mashtizadeh 《International journal of occupational safety and ergonomics》2016,22(1):125-130
Background. The mismatch between the hand size of workers and the size of industrial instruments is a growing concern; it can lead to various musculoskeletal complications. Currently, there are few reliable studies available to address this concern in Iran. This study was conducted to measure 30 upper-extremity parameters in a group of Iranian industrial workers. Methods. This study is a cross-sectional study on 529 workers. The study population was randomly selected from male Iranian industrial workers who were referred to the Yazd hospital occupational medicine clinic for surveillance evaluations. Results. The M (SD) age of the participants was 30.13 (8.29) years. Statistical analysis was performed using the mean, standard deviation and 5th, 50th and 90th percentiles for each measured hand dimension. A considerable number of dimensions were significantly different between the measurements of right and left hands in each examinee. The results showed significant differences between Iranian hand size and that of other populations. Conclusion. This study provided a valuable databank of hand dimensions in a population of Iranian male workers. These data can be used by manufacturers in designing high-quality hand-tools and industrial gloves, taking into consideration Iranian worker characteristics. 相似文献
72.
Lisa A. Simoncelli Christine J. Delevan Omar Ali S. Al-Naimi Maryam Bamshad 《Behavioral ecology and sociobiology》2010,64(5):865-873
Most monogamous male mammals display parental care, but the mechanism by which they become motivated to care for infants remains
unknown. We used prairie voles (Microtus ochrogaster) as a model of biparental species to test the hypothesis that physical contact with a female enhances male parental responsiveness
before the birth of offspring. We tested four groups of males: mated with physical contact with their mate, mated with only
distal cues from their mate, mated with no cues, and unmated with distal cues from a female. The subjects were placed in an
oversized cage divided into two compartments by a perforated barrier. At mid-gestation, the bedding and females were removed,
and the males’ responses toward two infants were videotaped. Although most males behaved parentally, mated males exposed to
their mate’s tactile or distal cues approached the young faster and were more likely to care for both infants than unmated
males which received female distal cues. Males who had physical contact with their mate showed “kyphosis” (a crouching position
over infants) and contacted infants more frequently than mated males which received no cues from their mate or unmated males
which received female distal cues. Furthermore, the frequency of non-social behaviors was lowest in mated males that had physical
contact with their mate. The data suggest that exposure to female distal cues after mating is sufficient to increase male
parental attentiveness, but female somatosensory cues affect the male's tendency to remain in physical contact with infants. 相似文献
73.
Sabaghnia Naser Janmohammadi Mohsen Dalili Maryam Karimi Ziba Rostamnia Sadegh 《Environmental science and pollution research international》2019,26(12):11719-11729
Environmental Science and Pollution Research - In the present work, the effect of graphene oxide (GO) architecture and synthesis of gold nanoparticles (AuNPs) on the surface of GO by using... 相似文献
74.
Lobna Daoud Houda Hmani Manel Ben Ali Mouna Jlidi Mamdouh Ben Ali 《Journal of Polymers and the Environment》2018,26(1):23-32
Over a hundred of halophilic/halotolerant microorganisms were screened for alkaline protease production. The bacterium showing the highest enzyme production was characterized and identified as Bacillus halodurans US193 on the basis of 16S rRNA gene analysis. It was alkalophilic, thermophilic and halotolerant since it grew optimally at pH 9.7 and 50?°C with tolerance of up to 125 g NaCl l?1. The alkaline protease was purified 4.9 times with about 40186.1 U/mg as specific activity. It exhibited optimal activity at pH 10, 70?°C and 0.25 M NaCl with perfect stability at wide ranges of pH (6–12), temperatures (30–60?°C) and NaCl concentrations (0–2 M). The serine alkaline protease maintained high stability in the presence of Cu2+, Mg2+, Ba2+ and Ca2+ ions, various organic solvents [50% (v/v)] and ionic and non ionic detergent additives. In addition, it was more compatible with various commercialized detergents than other reported detergent proteases, and was very efficient in blood stain removal. These findings let B. halodurans US193 alkaline protease be an ideal candidate for many industrial processes at harsh conditions, especially as a bio-additive in detergent industry. 相似文献
75.
Ghodrat Maryam Rhamdhani Muhammad Akbar Khaliq Abdul Brooks Geoffrey Samali Bijan 《Journal of Material Cycles and Waste Management》2018,20(1):386-401
Journal of Material Cycles and Waste Management - In this paper, a detailed thermodynamic analysis of processing of electronic waste (e-waste), particularly printed circuit boards (PCB), through... 相似文献
76.
Maryam Dadar Milad Adel Hasan Nasrollahzadeh Saravi Mozhgan Dadar 《Environmental science and pollution research international》2016,23(24):24540-24546
This study focuses on the extent of zinc (Zn), copper (Cu), cadmium (Cd), cobalt (Co), manganese (Mn), lead (Pb), mercury (Hg), and arsenic (As) bioaccumulation in edible muscles of Caspian kutum (Rutilus frisii kutum), in both male and female sexes at Noor and Babolsar coastal regions from the southern basin of Caspian Sea. These values were compared with the WHO and the UNFAO safety standards regarding the amount of the abovementioned heavy metals in fish tissues (mg/kg ww). Results showed that the accumulation of these elements (except for Zn) was not significantly different between sexes of male and female in Babolsar coastal regions (P?>?0.05). In the other hand, accumulation of Hg and As at edible muscles of Caspian kutum has significant difference between two sexes of male and female in Noor coastal regions (P?<?0.05), the female had higher concentration than the male. Furthermore, it was not significantly correlated with sex and rivers in length and weight of fish (R 2?<?0.50; P?>?0.05). Based on the results, the concentration of heavy metals in the studied fish tissues proved to be significantly lower than international standards (P?<?0.05), so its consumption is not a threat to the health of consumers. 相似文献
77.
Rasoul Hemmatjo Mohsen Aliabadi Omid Kalatpour Maryam Farhadian 《International journal of occupational safety and ergonomics》2018,24(3):358-365
This study investigated the combined effect of firefighting operations and exposure to smoke on physiological responses, cognitive functions and physical performance among firefighters. Each firefighter was engaged in two experimental conditions: (a) without artificial smoke, control (NS); (b) with artificial smoke (WS). The results of data analysis revealed that heart rate and body temperature increased significantly after the firefighting activities in the two conditions relative to baseline. In addition, reaction time (RT) and correct response (CR) decreased after the activity relative to baseline and there was a significant difference in RT and CR between the NS and WS conditions. There was also a significant difference in performance time between the NS and WS conditions. These findings demonstrated that a smoke compound has an insignificant effect on physiological responses during firefighting activity. On the contrary, the smoke compound has a detrimental influence on cognitive and physical performance. 相似文献
78.
Pseudomonas sp. (Strain 10–1B): A potential inoculum candidate for green and sustainable remediation 下载免费PDF全文
Maryam Bello‐Akinosho Rasheed Adeleke Mapitsi S. Thantsha Mphekgo Maila 《补救:环境净化治理成本、技术与工艺杂志》2017,27(3):75-79
Soil pollution caused by polycyclic aromatic hydrocarbons (PAHs) is a consequence of various industrial processes which destabilizes the ecosystem. Bioremediation by bacteria is a cost‐effective and environmentally safe solution for reducing or eliminating pollutants in soils. In the present study, we artificially polluted agricultural soil with used automobile engine oil with a high PAH content and then isolated bacteria from the soil after 10 weeks. Pseudomonas sp. strain 10–1B was isolated from the bacterial community that endured this artificial pollution. We sequenced its genomic DNA on Illumina MiSeq sequencer and evaluated its ability to solubilize phosphate, fix atmospheric nitrogen, and produce indoleacetic acid, in vitro, to ascertain its potential for contribution to soil fertility. Its genome annotation predicted several dioxygenases, reductases, ferredoxin, and Rieske proteins important in the ring hydroxylation initiating PAH degradation. The strain was positive for the soil fertility attributes evaluated. Such combination of attributes is important for any potential bacterium partaking in sustainable bioremediation of PAH‐polluted soil. 相似文献
79.
Characterization of ionic composition of TSP and PM10 during the Middle Eastern Dust (MED) storms in Ahvaz, Iran 总被引:1,自引:0,他引:1
Shahsavani A Naddafi K Jaafarzadeh Haghighifard N Mesdaghinia A Yunesian M Nabizadeh R Arhami M Yarahmadi M Sowlat MH Ghani M Jonidi Jafari A Alimohamadi M Motevalian SA Soleimani Z 《Environmental monitoring and assessment》2012,184(11):6683-6692
Because of the recent frequent observations of major dust storms in southwestern cities in Iran such as Ahvaz, and the importance of the ionic composition of particulate matters regarding their health effects, source apportionment, etc., the present work was conducted aiming at characterizing the ionic composition of total suspended particles (TSP) and particles on the order of ~10?μm or less (PM(10)) during dust storms in Ahvaz in April-September 2010. TSP and PM(10) samples were collected and their ionic compositions were determined using an ion chromatography. Mean concentrations of TSP and PM(10) were 1,481.5 and 1,072.9?μg/m(3), respectively. Particle concentrations during the Middle Eastern Dust (MED) days were up to four times higher than those in normal days. Ionic components contributed to only 9.5% and 11.3% of the total mass of TSP and PM(10), respectively. Crustal ions were most abundant during dust days, while secondary ions were dominant during non-dust days. Ca(2+)/Na(+) and Cl(-)/Na(+) ratios can be considered as the indicators for identification of the MED occurrence. It was found that possible chemical forms of NaCl, (NH(4))(2)SO(4), KCl, K(2)SO(4), CaCl(2), Ca(NO(3))(2), and CaSO(4) may exist in TSP. Correlation between the anionic and cationic components suggests slight anion and cation deficiencies in TSP and PM(10) samples, though the deficiencies were negligible. 相似文献
80.