نتایج جستجو برای: agrosilvopastoral systems
تعداد نتایج: 1183362 فیلتر نتایج به سال:
introduction: the concept of organizational culture usually is considered as a moderating factor in using information technology (it). the present study aimed to review the association between harrison cultural typology and the acceptance of hospital information system (his) by its users in non-university hospitals of iran university of medical sciences (tehran, iran). methods: this research wa...
background: the research to date does not present an articulated approach to ensure nutrition and food systems education is systematically implemented within schools. this paper aimed to investigate food experts’ views of the best strategies to improve school‑leavers’ knowledge of nutrition and food systems. methods: in this qualitative study, 28 iranian food and nutrition experts from four maj...
abstract the major constraints of agricultural production in the south western coastal areas of bangladesh are soil and water salinity of varying degrees, lack of fresh water for irrigation, slow soil drying pattern which are being augmented further due to climate change, requires suitable options of farming systems and component technologies. the major constraints and potentials of agricul...
the current study aimed to detect the presence of helicobacter pylori in some water systems in egypt as well as in blood samples of patients suffering from stomach ulcers.fifty-one water samples collected from some egyptian governorates; giza, alexandria, monofia, beheira, minya, sohag, was subjected to physical and chemical analysis. urease gene urec, a highly specific sequence in h. pylori dn...
conclusion pacs is highly accepted in all three emergency departments especially among specialists. pu, peu and change are factors influencing pacs acceptance. our study can be used as an evidence of pacs acceptance in emergency wards. results mean age of participants was 32.9 years (standard deviation [sd] = 6.08). participants with the specialty degree got a higher acceptance score than the t...
scheduling has become an attractive area for artificial intelligence researchers. on other hand, in today's real-world manufacturing systems, the importance of an efficient maintenance schedule program cannot be ignored because it plays an important role in the success of manufacturing facilities. a maintenance program may be considered as the heath care of manufacturing machines and equip...
a multiple-unit oral floating system was prepared using the emulsification-solvent diffusion method to prolong the gastric emptying time of theophylline. for this purpose, theophylline, ethyl cellulose and dibutyl phthalate were dissolved in an ethanol/dichloromethane mixture, added to 0.1 m hcl containing nacl (20%) or saturated theophylline and/or different concentrations of polysorbate 80 an...
background: the present study assesses independent predictors of clinically important traumatic brain injury (citbi) in order to design a prognostic rule for identification of high risk children with mild head injury. materials and methods: in a retrospective cross-sectional study, 3,199 children with mild traumatic brain injury (tbi) brought to emergency ward of three hospitals in tehran, iran...
objective(s): the aim of this work was to investigate the effect of the natural and the chemically modified form of cyclodextrins namely; β-cyclodextrin (β-cd) and hydroxypropyl-β-cyclodextrin (hp-β-cd) respectively on the solubility and dissolution rate of aripiprazole; an antipsychotic medication showing poor aqueous solubility. materials and methods: phase solubility of aripiprazole with t...
evolving models have found applications in many real world systems. in this paper, potentials of the evolving linear models (elms) in tracking control design for nonlinear variable structure systems are introduced. at first, an elm is introduced as a dynamic single input, single output (siso) linear model whose parameters as well as dynamic orders of input and output signals can change through ...
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