Autor: Mohammadi, H. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effects of Physical and Personal Risk Factors on Sick Leave Due to Musculoskeletal Disorders
Autorzy:: Motamedzade, M.
Faghih, M. A.
Golmohammadi, R.
Faradmal, J.
Mohammadi, H.
Powiązania:: https://bibliotekanauki.pl/articles/90566.pdf
Data publikacji:: 2013
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: sick leave
physical risk factors
musculoskeletal disorders
assembly workers
car manufacturing
czynniki ryzyka
zwolnienie lekarskie
zaburzenia układu mięśniowo-szkieletowego
Opis:: The purpose of this study was to investigate the effects of physical and personal risk factors on sick leave due to musculoskeletal disorders in an Iranian car company. In this cross-sectional study, 234 workers participated and all of them had sick leave due to musculoskeletal disorders in the past year. A physical risk factor checklist and personal information questionnaire were used as data-gathering tools. There was no significant relationship between physical risk factors and sick leave (p > .05). Cigarette smoking (p = .045), body mass index >30 (p = .046) and age (p = .044) showed a significant relationship with sick leave. Workers with lumbar deviation of 20°–60° (OR 1.10) and >60° (OR 1.11) were at greater risk. The ratios for workers with repetitive work (OR 1.30) and workers with force exertion (OR 1.36) were greater than for other workers. Taking preventive actions to improve the ergonomic working conditions of assembly workers and their lifestyle seems crucial.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2013, 19, 4; 513-521
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Manual Material Handling Assessment Among Workers of Iranian Casting Workshops
Autorzy:: Mohammadi, H.
Motamedzade, M.
Faghih, M. A.
Bayat, H.
Mohraz, M. H.
Musavi, S.
Powiązania:: https://bibliotekanauki.pl/articles/89709.pdf
Data publikacji:: 2013
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: musculoskeletal disorders
manual material handling
casting workers
Snook tables
warsztaty odlewnicze
zaburzenia układu mięśniowo-szkieletowego
magazynowanie
pracownicy odlewni
Opis:: Manual material handling (MMH) tasks can be found in most workplaces and they may constitute a risk factor for work-related musculoskeletal disorders (WMSDs). This study was conducted to determine the prevalence of WMSDs and to compare MMH loads with the acceptable weight and force limits among Iranian casting workers. Data were collected from 50 workers of casting workshops who performed MMH tasks. The Nordic musculoskeletal disorders questionnaire and the Snook tables were used as tools for data collection. Hand/wrist symptoms were the most prevalent problems among the workers (84%). The results of the Snook tables showed that the loads in lifting (84%), lowering (86%), carrying (66%), pushing with initial (43%) and sustained force (59%), and pulling tasks with initial (48%) and sustained force (93%) exceeded recommended limits. WMSDs occurred in high rates among the workers and, thus, ergonomics interventions should focus on decreasing WMSDs and redesigning MMH tasks.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2013, 19, 4; 675-681
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Comparison of Fecal Egg Counts and ELISA for the diagnosis of Dicrocoelium Dendriticum infection
Autorzy:: Naeemipour1, M.
Hashemitabar, Ch.R.
Dastjerdi, K.
Jamshidian Mojaver, M.
Mohammadi, H.R.
Powiązania:: https://bibliotekanauki.pl/articles/32321.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: From economical point of view, Dicrocoelium Dendriticum (D. dendriticum) causes a lot of damages to the livestock industry annually. So, the rapid diagnosis of infection is very important. The diagnosis is based on egg per count of feces (EPG) test because detection according to clinical symptoms is difficult. Since EPG is not accurate and sensitive, the serological methods become important for the diagnosis of this parasite as they are more accurate in comparison to EPG test and they are able to diagnose infection in a short time. In this study, somatic and Excretory-secretory antigens (EsAg) were isolated. The ELISA test was set up according to positive and negative sera and the results which were obtained compared to those obtained by the EPG test. The prevalence of infection in 550 samples by ELISA and EPG methods were 56% and 7% respectively, which shows the significant difference between these methods in examining the rate of infection. Based on the results, the specificity and sensitivity in ELISA test were 95% and 94%, respectively. The results showed that the ELISA is a more reliable test in comparison to EPG test for the rapid diagnosis of D. dendriticum infection.
Źródło:: Polish Journal of Veterinary Sciences; 2016, 19, 3
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Some physiological responses of wheat and bean to soil salinity at low matric suctions
Autorzy:: Khatar, M.
Mohammadi, M.H.
Shekari, F.
Powiązania:: https://bibliotekanauki.pl/articles/24475.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:: The effect of soil matric suction (2-33 kPa) and salinity (soil solution electrical conductivity 0.7-8 dS m-1 for bean and 2-20 dS m-1 for wheat) on some physiological characteristics of bean and wheat in a clay loam soil under greenhouse condition was investigated. The results showed that the leaf chlorophyll content index and potassium concentration decrease under salinity stress and increase with matric suction from 2 to 33 kPa suction for both plants. The wheat chlorophyll content index declines during the stress spell but bean chlorophyll content index remains nearly constant. The lowest values of the content of soluble sugars and the highest values of leaf proline content are observed at 2 kPa matric suction (highest aeration stress) for bean and wheat. As matric suction increases from 2 to 6 kPa, the soluble sugars increases and proline content decreases significantly and then soluble sugars decreases and proline content increases until 10 kPa suction, and the soluble sugars remains nearly constant at the higher matric suctions for both plants. While the electrical conductivity effect on the soluble sugars is not significant, the values of proline content for both crop increase significantly with electrical conductivity. It was shown that the aeration stress can result in more considerable and rapid physiological responses, in comparison with salinity stress. There is a strong correlation between wheat and bean chlorophyll content index and potassium concentration under salinity and aeration stresses.
Źródło:: International Agrophysics; 2017, 31, 1
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Evaluation of canola chlorophyll index and leaf nitrogen under wide range of soil moisture
Autorzy:: Meskini-Vishkaee, F.
Mohammadi, M.H.
Neyshabouri, M.R.
Shekari, F.
Powiązania:: https://bibliotekanauki.pl/articles/25557.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: canola
chlorophyll level
leaf
nitrogen
soil moisture
plant stress
environmental stress
Opis:: The paper presents a study on the effect of soil matric suction on the variation of leaf chlorophyll index and nitrogen concentration of canola. Results showed that chlorophyll index increases exponentially with soil matric suction, especially at the late season of canola growing time. At moderate matric suction (200 and 300 kPa soil suction heads), chlorophyll index remains nearly constant, but in drier soil (matric suction >300 kPa),chlorophyll index increases gradually with time. Despite the va-riation of the total leaf nitrogen with the soil matric suction, it is similar to the variation of the chlorophyll index, but the results showed that the chlorophyll index – nitrogen concentration curve has a de-marcated bi-modal shape. We suggest that 2.7% of nitrogen and 69.8 of the chlorophyll index value represent the upper limit of the chlorophyll meter reliability for estimation of canola nitrogen under a wide range of soil moisture levels. These results confirm that the chlorophyll meter can be used as an effective tool for rapid and non-destructive estimation of the relative chlorophyll and nitrogen content in canola leaves at a wide range of soil moisture content, except for nearly wilting coefficient or extremely high drought stress.
Źródło:: International Agrophysics; 2015, 29, 1
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Biocontrol potential of Trichoderma harzianum in controlling wilt disease of pistachio caused by Verticillium dahliae
Autorzy:: Fotoohiyan, Z.
Rezaee, S.
Bonjar, G.H.S.
Mohammadi, A.H.
Moradi, M.
Powiązania:: https://bibliotekanauki.pl/articles/65568.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biological control
Trichoderma harzianum
controlling
wilt disease
antagonism
pistachio
orchard
Verticillium dahliae
Iran
Opis:: Verticillium wilt caused by Verticillium dahliae, is one of the most devastating diseases in pistachio orchards in the world including Iran. In search for an eff ective non-chemical strategy for the management of this disease, we evaluated the biocontrol potential of Trichoderma harzianum isolates obtained from the rhizosphere of healthy pistachio trees in diff erent locations of the Kerman province of Iran against V. dahliae under laboratory and greenhouse conditions. Dual culture tests in the laboratory were conducted in a completely randomized design using 72 T. harzianum isolates. Twenty isolates showed the highest in vitro antagonistic activity. Th e results indicated that all 20 isolates were capable of inhibiting the mycelial growth of V. dahliae signifi cantly. Among them, isolates Tr8 and Tr19 were the most eff ective by 88.89% and 85.12% inhibition, respectively. Extracted cell free metabolites of all eff ective isolates also inhibited the growth of V. dahliae in the culture medium signifi cantly. According to the results, isolates Tr4 and Tr6 inhibited fungal pathogen growth by 94.94% and 88.15% respectively, through production of non-volatile metabolites. In the evaluation of volatile metabolites, isolates Tr5 and Tr4 were the most eff ective by 26.27% and 24.49% growth inhibition, respectively. Based on the results of the in vitro experiments, the fi ve most eff ective isolates were selected for evaluation under greenhouse conditions for their biocontrol potential in controlling Verticillium wilt of pistachio. Results of the greenhouse, (in vivo) experiments were positive and indicated that the occurrence of wilt disease in plants treated with the antagonists alone or in combination with pathogenic fungus was lower than in plants inoculated with pathogen alone. Th e overall results of this study suggest that Trichoderma fungal antagonist may be an eff ective biocontrol agent for the control of Verticillium wilt of pistachio.
Źródło:: Journal of Plant Protection Research; 2017, 57, 2
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Two torymid species (Hymenoptera: Chalcidoidea, Torymidae) developing on Artemisia gall midges (Diptera: Cecidomyiidae)
Autorzy:: Lotfalizadeh, H.
Mohammadi-Khoramabadi, A.
Powiązania:: https://bibliotekanauki.pl/articles/65617.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Torymidae
parasitoid
Hymenoptera
Chalcidoidea
Artemisia
gall midge
Diptera
Cecidomyiidae
distribution
new record
Opis:: Two parasitoid wasps, Torymus artemisiae Mayr and Torymoides violaceus (Nikol’skaya), were reared on Artemisia herba-alba (Asteraceae) galles, in central Iran. Torymus artemisiae and T. violaceus were developed from the gall midges: Rhopalomyia navasi Tavares and R. hispanica Tavares, respectively. The occurrence of these two parasitic wasps in Iran, and their associations with R. navasi and R. hispanica, are new. Data on the wasps’ biological associations and geographical distribution are provided. The parasitoid compositions of the genus Rhopalomyia (Diptera: Cecidomyiidae) were also discussed.
Źródło:: Journal of Plant Protection Research; 2015, 55, 4
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Effect of inoculation with Piriformospora indica and Sebacina vermifera on growth of selected Brassicaceae plants under greenhouse conditions
Autorzy:: Kari Dolatabadi, H.
Mohammadi Goltapeh, E.
Powiązania:: https://bibliotekanauki.pl/articles/2159.pdf
Data publikacji:: 2013
Wydawca:: Instytut Ogrodnictwa
Tematy:: Brassicaceae
Piriformospora indica
Sebacina vermifera
inoculation
plant height
dry weight
greenhouse condition
Źródło:: Journal of Horticultural Research; 2013, 21, 2
2300-5009
Pojawia się w:: Journal of Horticultural Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Investigating ground vibration to calculate the permissible charge weight for blasting operations of Gotvand-Olya dam underground structures
Badania drgań gruntu w celu określenia dopuszczalnego ciężaru ładunku wybuchowego przy pracach strzałowych w podziemnych elementach tamy w Gotvand-Olya
Autorzy:: Soltani-Mohammadi, S.
Amnieh, H. B.
Bahadori, M.
Powiązania:: https://bibliotekanauki.pl/articles/219562.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: prace strzałowe
drgania podłoża
maksymalna prędkość drgań cząstek (PPV)
algorytm hybrydowy
blasting
ground vibration
peak particle velocity
simulated annealing algorithm
Opis:: Ground vibration, air vibration, fly rock, undesirable displacement and fragmentation are some inevitable side effects of blasting operations that can cause serious damage to the surrounding environment. Peak Particle Velocity (PPV) is the main criterion in the assessment of the amount of damage caused by ground vibration. There are different standards for the determination of the safe level of the PPV. To calculate the permissible amount of the explosive to control the damage to the underground structures of Gotvand Olya dam, use was made of sixteen 3-component (totally 48) records generated from 4 blasts. These operations were recorded in 3 directions (radial, transverse and vertical) by four PG-2002 seismographs having GS-11D 3-component seismometers and the records were analyzed with the help of the DADISP software. To predict the PPV, use was made of the scaled distance and the Simulated Annealing (SA) hybrid methods. Using the scaled distance resulted in a relation for the prediction of the PPV; the precision of the relation was then increased to 0.94 with the help of the SA hybrid method. Relying on the high correlation of this relation and considering a minimum distance of 56.2 m to the center of the blast site and a permissible PPV of 178 mm/s (for a 2-day old concrete), the maximum charge weight per delay came out to be 212 Kg.
Drgania gruntu, rozchodzenie się drgań w powietrzu, rozrzut skał, ich niepożądane przemieszczenia i rozdrobnienie to nieuchronne skutki prowadzenia prac strzałowych, które spowodować mogą poważne spustoszenie w środowisku naturalnym. Maksymalna prędkość drgań cząstek (PPV) to główne kryterium przy ocenie szkód spowodowanych przez drgania podłoża. Istnieje wiele norm określających bezpieczne poziomy prędkości drgań cząstek (PPV). Obliczenie dopuszczalnej wielkości ładunku wybuchowego w taki sposób, by zapobiegać uszkodzeniom podziemnych elementów tamy Gotvand Olya opiera się na wykorzystaniu 16 3-elementowych zestawów danych zarejestrowanych w trakcie 4 wybuchów. Procedura rejestracji obejmuje zapisy drgań w 3 kierunkach (promieniowe, poprzeczne i pionowe) zarejestrowane przez 4 sejsmografy wyposażone w sejsmometry GS-11D, zaś same zapisy analizowano przy wykorzystaniu oprogramowania DADISP. Przewidywanie prędkości drgań cząstek odbywa się w oparciu o skalowanie odległości oraz metody hybrydowe Simulated Annealing (S.A.). W wyniku skalowania odległości otrzymujemy wzorów na prędkość drgań cząstek, przy wykorzystaniu metod hybrydowych dokładność obliczeń wzrasta do 0.94. Wykorzystując wysoki stopień korelacji wynikający ze wzoru, uwzględniając minimalną odległość 56.2 m od epicentrum wybuchu oraz dozwolony poziom prędkości drgań cząstek gruntu 178 mm/s (dla dwudniowego betonu), otrzymujemy maksymalną wielkość ładunku na pojedynczy wystrzał na poziomie 212 Kg.
Źródło:: Archives of Mining Sciences; 2012, 57, 3; 687-697
0860-7001
Pojawia się w:: Archives of Mining Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Study on Bacillus isolated from intestine of Persian sturgeon (Acipenser persicus) comparing with commercial probiotics
Autorzy:: Tabari, M.
Tabari, K.
Karimzadegan, H.
Mohammadi, M.
Powiązania:: https://bibliotekanauki.pl/articles/11072.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Źródło:: International Letters of Natural Sciences; 2016, 60
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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