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Prevention of Pressure Ulcer in Intensive Care Units

Fatemeh Ahmadian, Davood Hekmatpou, Maryam Eghbali, Shadi Farsaei
2016 Critical Care Nursing  
One of the most common problems in intensive care units (ICUs) is pressure ulcer or bed sore and its prevention is a priority in nursing cares. Objectives: The current study aimed to evaluate the effect of henna (Lawsonia inermis) on prevention of pressure ulcers in patients in ICU. Patients and Methods: The current randomized clinical trial was conducted on 80 patients with the inclusion criteria hospitalized in the ICU of Al-Zahra hospital, Isfahan, Iran in 2015. Patients were randomly
more » ... ed into two groups of control (40 patients) and intervention (40 patients) by drawing method. For the intervention group, along with the standard prevention cares for pressure ulcers, once a 15 cm thick layer of henna was applied on patients' sacrum. Data was gathered using demographic data questionnaire, Braden scale to predict pressure ulcer risk and the table to control daily record of skin temperature before the intervention for a week. Data were analyzed using SPSS ver. 21 and Chi-square, Greenhouse Geisser, Pearson correlation coefficient and independent t-test were used in the study. Results: The mean age of patients in the intervention and control groups was 51.35 ± 17 and 52.94 ± 19.61years, respectively. The means of standard deviation score of the Braden scale for all the participants on the first, fourth and seventh day of the study were 12.27 ± 2.85, 14.23 ± 3.21 and 15.73 ± 3.82, respectively, which had significant differences with each other (P < 0.0001); suggesting that the risk of pressure ulcers occurrence was higher on the first day than the seventh day. There was a reverse relationship between reduction of the Braden scale score and increase in local warmth of sacrum (r = 0.558) in both groups. The mean and standard deviation of local warmth of sacrum during the seven days of study were 37.84 ± 0.52 and 38.06 ± 0.67 in the intervention and control groups, but their difference was insignificant (P < 0.14). The mean and standard deviation of local warmth of forehead during the seven days of study were 37.09 ± 0.41 and 37.03 ± 0.44 in the intervention and control groups but their difference was insignificant (P < 0.5). There was a statistically significant difference between the mean local warmth of sacrum and forehead in the intervention group during the seven days of study (P = 0.0001). At the end of the study, one patient in the intervention group (2.7% male) and six patients in the control group (14.29% male, 2.85% female) had developed pressure ulcers; this difference was significant (P = 0.001). Conclusions: Considering the effect of henna in reducing the local warmth, redness, and inflammation of sacrum in patients in intensive care units, application of henna to prevent pressure ulcers for patients at risk of developing pressure ulcers is recommended.
doi:10.17795/ccn-6255 fatcat:vk42dkqttfagndcdao224kgdfa

Actuarial strategy for pricing Asian options under a mixed fractional Brownian motion with jumps [article]

Foad Shokrollahi, Davood Ahmadian, Luca Vincenzo Ballestra
2021 arXiv   pre-print
The mixed fractional Brownian motion (mfBm) has become quite popular in finance, since it allows one to model long-range dependence and self-similarity while remaining, for certain values of the Hurst parameter, arbitrage-free. In the present paper, we propose approximate closed-form solutions for pricing arithmetic Asian options on an underlying described by the mfBm. Specifically, we consider both arithmetic Asian options and arithmetic Asian power options, and we obtain analytical formulas
more » ... r pricing them based on a convenient approximation of the strike price. Both the standard mfBm and the mfBm with Poisson log-normally distributed jumps are taken into account.
arXiv:2105.06999v1 fatcat:nhcmvusujresxkm25p7ppw2gtu

CT and PET Image Registration: Application to Thorax Area

Davood Khodadad, Alireza Ahmadian, Hossein Yousefi Banaem, Mohammad Reza Ay, Armaghan Fard-Esfahani
2014 Journal of Image and Graphics  
Alireza Ahmadian received his PhD in Biomedical Image Processing from the Imperial College of Science and Technology in Medicine, London, in 1997.  ... 
doi:10.12720/joig.1.4.171-175 fatcat:4dosd52f2jeehc4qllabqaa6ae

Boundedness and convergence analysis of stochastic differential equations with Hurst Brownian motion

Davood Ahmadian, Omid Farkhondeh Rouz
2019 Boletim da Sociedade Paranaense de Matemática  
Ahmadian and Omid Farkhondeh Rouz that B 32 = −Hg(t, 5 ) 5 then we evaluate the terms of B 1 , B 2 , B 3 and B 4 separately.  ...  highly important to identify the value of the Hurst parameter in order to understand the structure of the process and its applications, since the calculations differ dramatically according to the 188 Davood  ... 
doi:10.5269/bspm.v38i5.38313 fatcat:vwzi7tvmlrhj3c57ek5y5ajflu

Exponential mean-square stability of numerical solutions for stochastic delay integro-differential equations with Poisson jump

Davood Ahmadian, Omid Farkhondeh Rouz
2020 Journal of Inequalities and Applications  
Omid Farkhondeh Rouz and his teacher professor Davood Ahmadian finished the manuscript together.  ... 
doi:10.1186/s13660-020-02452-3 fatcat:prlybru4grfzzp6y7dk42nmkgm

An investigation on the existence and uniqueness analysis of the optimal exercise boundary of American put option

Davood Ahmadian, Akbar Ebrahimi, Karim Ivaz, Mariyan Milev
2021 Filomat  
In this paper, we discuss the Banach fixed point theorem conditions on the optimal exercise boundary of American put option paying continuously dividend yield, to investigate whether its existence, uniqueness, and convergence are derived. In this respect, we consider the integral representation of the optimal exercise boundary which is extracted as a consequence of the Feynman-Kac formula. In order to prove the above features, we define a nonempty closed set in Banach space and prove that the
more » ... oposed mapping is contractive and onto. At final, we illustrate the ratio convergence of the mapping on the optimal exercise boundary.
doi:10.2298/fil2104095a fatcat:djiazom5yzdv3dg5dyc2nm7jfa

The Effects of Melatonin in Patients with Nonalcoholic Fatty Liver Disease: A Randomized Controlled Trial

Mehdi Ahmadian, Hassan Pakravan, Ali Fani, Davood Aghaee, Sareh Brumanad, Bahram Pakzad
2017 Advanced Biomedical Research  
This study was designed to evaluate the effect of melatonin on nonalcoholic fatty liver disease (NAFLD) in compared to placebo. Materials and Methods: A total of 100 patients with histopathological diagnosis NAFLD in two groups of case and control received oral melatonin or placebo thrice daily for 3 months. Collected data were weight, waist, systolic blood pressure (SBP), diastolic blood pressure (DBP), alanine aminotransferase (ALT), aspartate aminotransferase (AST), high sensitive C-reactive
more » ... protein (hsCRP), fatty liver grade, and side effects which were measured at baseline and after treatment period using standard clinical chemistry techniques. Results: Before treatment the mean of weight, waist, SBP, DBP, ALT, AST, and hsCRP between cases and controls were similar (P > 0.5). After treatment, only the differences in the mean of hsCRP in cases was significantly lower than controls (P = 0.003). In case group, all variables after treatment were significantly decreased compare to baseline (P > 0.5) and only AST after treatment was similar to before treatment (P > 0.5). The mean of a decrease in the level of weight, waist, SBP, and ALT were not statistically significant between groups (P > 0.5). In the case group in compare to control group the level of DBP, AST, and hsCRP significantly more decreased. After treatment fatty, liver grade was statistically improved in more cases than controls (P = 0.001). Side effects were similar between the two groups. Conclusion: Melatonin significantly decreases liver enzymes, so the use of melatonin in patients with NAFLD can be effective.
doi:10.4103/2277-9175.204593 pmid:28503495 pmcid:PMC5414412 fatcat:4gm37o3bobe5jew6lk2njipuii

Henna (Lawsonia inermis) as an Inexpensive Method to Prevent Decubitus Ulcers in Critical Care Units: A Randomized Clinical Trial

Davood Hekmatpou, Fatemeh Ahmadian, Maryam Eghbali, Shadi Farsaei
2018 Journal of Evidence-Based Integrative Medicine  
ORCID iD Davood Hekmatpou, PhD Ethical Approval The Medical Ethics Committee of Arak University of Medical Sciences approved the study (Approval No.  ...  Author Contributions Davood Hekmatpou, Fatemeh Ahmadian, Maryam Eghbali, and Shadi Farsaei participated in the study design and carried out the experiments.  ...  Davood Hekmatpou and Fatemeh Ahmadian wrote the article and critically revised the manuscript. All authors read and approved the final manuscript for submission.  ... 
doi:10.1177/2515690x18772807 pmid:29756474 pmcid:PMC5954567 fatcat:ppv5k7vnwjhztaamwcfouo2d4q

B-spline based free form deformation thoracic non-rigid registration of CT and PET images

Davood Khodadad, Alireza Ahmadian, Mohammadreza Ay, Armaghan Fard Esfahani, Hossein Yousefi Banaem, Habib Zaidi
2011 International Conference on Graphic and Image Processing (ICGIP 2011)  
Accurate attenuation correction of emission data is mandatory for quantitative analysis of PET images. One of the main concerns in CT-based attenuation correction(CTAC) of PET data in multimodality PET/CT imaging is misalignment between PET and CT images. The aim of this study, is to proposed a hybrid method which is simple, fast and accurate, for registration of PET and CT data which affected from respiratory motion in order to improve the quality of CTAC. The algorithm is composed of three
more » ... hods: First, using Bspline Free Form Deformation to describe both images and deformation field. Then applying a pre-filtering on both PET and CT images before segmentation of structures in order to reduce the respiratory related attenuation correction artifacts of PET emission data. In this approach, B-spline using FFD provide more accurate adaptive transformation to align the images, and structure constraints obtained from prefiltering applied to guide the algorithm to be more fast and accurate. Also it helps to reduce the radiation dose in PET/CT by avoiding repetition of CT imaging. These advances increase the potential of the method for routine clinical application.
doi:10.1117/12.913422 fatcat:5dgmjpyjdbcqpibtmelifsqzai

Green sonochemistry assisted synthesis of hollow magnetic and photoluminescent MgFe2O4–carbon dot nanocomposite as a sensor for toxic Ni(ii), Cd(ii) and Hg(ii) ions and bacteria

Shahla Ahmadian-Fard-Fini, Davood Ghanbari, Omid Amiri, Masoud Salavati-Niasari
2021 RSC Advances  
The purpose of this study is synthesis of magnetic and photoluminescence nanoparticles at the same time for finding of bacteria that could be fatal and its detection are crucial for some illness prohibition.
doi:10.1039/d1ra02458b pmid:35480469 pmcid:PMC9034268 fatcat:6qyieuvbpjcnjaragsf4o6ypwi

Computational Methods for Differential Equations Stability analysis of two classes of improved backward Euler meth-ods for stochastic delay differential equations of neutral type

Omid Rouz, Davood Ahmadian
2017 unpublished
This paper examines stability analysis of two classes of improved backward Euler methods, namely split-step (θ, λ)-backward Euler (SSBE) and semi-implicit (θ, λ)-Euler (SIE) methods, for nonlinear neutral stochastic delay differential equations (NSDDEs). It is proved that the SSBE method with θ, λ ∈ (0, 1] can recover the exponential mean-square stability with some restrictive conditions on stepsize ∆, drift and diffusion coefficients, but the SIE method can reproduce the exponential
more » ... stability unconditionally. Moreover, for sufficiently small stepsize, we show that the decay rate as measured by the Lyapunov exponent can be reproduced arbitrarily accurately. Finally, numerical experiments are included to confirm the theorems.

Auxiliary role of D5 dopamine receptor as a marker in paranoid schizophrenia patients

Mahkameh Soleiman Meygooni, Mohammad Amin Minaei Asil, Geghani Taroyan Haftvani, Firouzeh Morshedzadeh, Davood Zaeifi
2019 Psychiatry and Clinical Psychopharmacology  
Quantitation of dopamine receptor RNA Preparation of blood lymphocyte, RNA extraction and cDNA synthesis performed as Ahmadian S. et al in 2014 [14] .  ... 
doi:10.1080/24750573.2019.1575501 fatcat:qsl4kivmkjgwtgtgxvmzmkpeea

Simple preparation and investigation of magnetic nanocomposites: Electrodeposition of polymeric aniline-barium ferrite and aniline-strontium ferrite thin films

Farzaneh Sharifi, Kambiz Hedayati, Davood Ghanbari
2022 Main Group Metal Chemistry  
This means that they are composed of a large number of tiny crystals with different orientations (Ahmadian-Fard-Fini et al., 2018; Panahi-Kalamuei et al., 2015; Sadeghpour et al., 2022) .  ...  contributions: Farzaneh Sharifi: writingoriginal draft, and formal analysis; Kambiz Hedayati: writing -original draft, writingreview and editing, formal analysis, visualization, and project administration; Davood  ... 
doi:10.1515/mgmc-2022-0019 fatcat:cbhhs2oppvfrjbb4pd4bh22gty

Embedded three spinel ferrite nanoparticles in PES-based nano filtration membranes with enhanced separation properties

Davood Ghanbari, Samaneh BandehAli, Abdolreza Moghadassi
2021 Main Group Metal Chemistry  
SF adsorbents are excellent choice for water treatment through the adsorption or degradation process (Ahmadian-Fard-Fini et al., 2019) .  ...  The magnetic properties of ferrite depend on the dispersion of the transition metal ions among the cationic sites in the spinel structure (Ahmadian-Fard-Fini et al., 2018; Goodarzi et al., 2017; Hedayati  ... 
doi:10.1515/mgmc-2022-0001 fatcat:wahr3jz2pvd2xi7dwi3ts5krqq

The Effectiveness of Critical Thinking on Enhancing Productive Skills among Iranian EFL Pre-Intermediate Learners

Maryam Kaviani, Davood Mashhadi Heidar
2020 Applied Research on English Language  
In this context, there exist some factors which should be considered by instructors or teachers in their in-service coaching classes as to enhance their teaching techniques (Fahim & Ahmadian, 2012) ,  ...  Moreover, holding in-service teaching classes to accelerate teachers' CT skills and to promote their training technique is of great significance in language learning context (Fahim & Ahmadian, 2012) .  ... 
doi:10.22108/are.2019.118748.1489 doaj:d109c8309783468c8fc935f8fa5e55fa fatcat:dtyqztis45amvg2fdvg6bepyay
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