Sharpening lower bound in some inequalities for frames in Hilbert spaces

Fahimeh Sultanzadeh,Mahmood Hassani,Mohsen Erfanian Omidvar,Rajab Ali Kamyabi Gol 강원경기수학회 2021 한국수학논문집 Vol.29 No.4

This paper aims to present a new lower bound for some inequalities related to Frames in Hilbert space. Some refinements of the inequalities for general frames and alternate dual frames under suitable conditions are given. These results refine the remarkable results obtained by Balan et al. and Gavruta.

Identification of sperm motility subpopulations in Gyr falcon (Falco rusticolus ) ejaculate: a tool for investigating between subject variation

Fahimeh Seyedasgari,Behnam Asadi,Sandor Sebastyen,Roberto Guillen 사단법인 한국동물생명공학회 2022 Journal of Animal Reproduction and Biotechnology Vol.37 No.3

Subgroups of sperm which share similar motility features documented in mammals indicate between-subject variations that might be related to fertilizing potential of the respective ejaculates. The objectives of this study were to define subpopulations of motile sperm in Gyr falcon semen using kinematic parameters driven by Computer Assisted Semen Analysis (CASA) and to investigate the subjectrelated variations in these subpopulations. A total of 24 fresh ejaculates from 6 falcons were used to assign each of the 20473 sperms into 3 subpopulations by a multivariate cluster analysis. The proportion of sperms in different sub-populations were compared among subjects by a generalized linear model and repeatability of sperm frequency in different subpopulations was investigated by corelation analysis. The resulting 3 categories of sperm indicated significant differences in all kinematic parameters (p < 0.05). Subpopulation 1 (15.91%) contained sperms with the highest velocity and progressiveness of movement trajectory while subpopulation 3 (6.4%) included the least progressively motile sperms. Proportion of rapid and medium progressive sperm were consistently higher in the ejaculate of three falcons compared to the two other birds which also had the highest proportion of slow non-progressive sperms (p < 0.05). Respective proportion of sperms in each subpopulations indicated significant repeatability over multiple measurements (p < 0.05). In conclusion, subpopulations of motile sperm in Gyr falcon can be identified using kinematic parameters generated by CASA. Individual differences in the proportion of these subpopulations might have potential application for identifying the males with higher fertilizing capacity.

Evaluating the Effects of Interpolation Method and Sample Size on Accuracy of Spatial Variability of Soil Variables And Reducing Sampling Cost

Fahimeh Khoramizadeh,Naser Davatgar 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

An Empirical Study on the Effect of Short-Term Regular Vitamin D3 Supplement Therapy on Blood Pressure and Exercise Tolerance in Heart Failure Patients

( Fahimeh Hosseinzadeh ),( Nader Jangi Oskouei ),( Saeid Ghavamzadeh ) 한국임상영양학회 2020 Clinical Nutrition Research Vol.9 No.1

The receptor of vitamin D is expressed in almost all body cells, including vascular endothelial cells and cardiomyocytes. Vitamin D deficiency has been observed widespread amongst heart failure (HF) patients, which could have harmful effects on their health condition. This study aims to investigate the effect of vitamin D supplements on blood pressure (BP) and physical activity of HF patients. Thirty-nine systolic HF patients with low ejection fraction (EF) < 50% and class III of New York Heart Association functional classification were randomly divided into 2 groups including intervention and placebo to enroll in an 8 weeks double-blind clinical trial. During the trial 6-minute walk test (6MWT), 25-hydroxyvitamin D (25[OH]D) level, BP, sodium and potassium intakes were assessed. The mean 25(OH)D level increased to 28.9 ± 11.7 ng/mL (p < 0.001) in the intervention group. There was a poor but non-significant reduction in systolic BP (-0.033 ± 4.71 mmHg, p = 0.531) in the intervention group. The BP also did not change in the placebo group at the end of the trial. A negligible decrease of 6MWT was observed in the intervention group (-6.6 ± 29.2 m) compared to the placebo (-14.1 ± 40.5 m). However, differences between the 2 groups were not statistically significant (p = 0.325). The results solely showed a slight positive correlation between 25(OH)D level and 6MWT. No significant improvements in BP and 6MWT were observed after vitamin D3 supplementation.

Modeling the Problem of Choosing an Optimal Strategy to Respond to Project Risks

Fahimeh Rezaee,Majid Sabzeparvar,Hamed Tayebee 대한산업공학회 2018 Industrial Engineeering & Management Systems Vol.17 No.4

The project risk management is a systematic process of identifying, analyzing and responding to project risks in orderto maximize results of positive events and minimize consequences of bad and negative events that can affect mainobjectives of the project. In this process, the phase of risk response is a very important phase; because the effectivenessof responses directly determines increase or decrease of the project risk. Planning risk responses is the process ofidentifying different options and actions for reducing or eliminating threats and increasing or exploiting opportunitiesrelated to objectives of the project. Therefore, in this research, a systematic approach which is a combination of fuzzymulti-objective decision-making methods and zero-one integer programming model, is proposed to select the bestsolutions for responding to project risks. Also, since project risk management process has different stages, the stagesbefore accountability phase include identifying and analyzing quality of the risks, and choosing critical risks is alsodone for accountability. Finally, in order to select the best solution for each of the critical risks, a zero-one multiobjectivemathematical model is presented in a fuzzy environment and a case study is carried out on the Khangirangas field (Shourijeh).

Impact of nutritional status on birth weight of neonates in Zahedan City, Iran

Fahimeh Khoushabi,G Saraswathi 한국영양학회 2010 Nutrition Research and Practice Vol.4 No.4

The objective of this study was to measure anthropometric and haemoglobin level and nutrient intake of expecting women in the third trimester of pregnancy and to relate the birth weight of neonates as outcome of pregnancy. A cross sectional study was performed in Zahedan City. Two hospitals situated in the city were selected based on their approval and cooperation. Five hundred healthy pregnant women in the age group 16-40 years were selected for this study. Findings showed that the mean height, weight, fundal height, and haemoglobin of pregnant women were 156.4 cm, 62.6 kg, 34.2 cm, and 11.1g/dl respectively. Nutrient intake was computed based on 24 hour recall method. The results showed that, the mean intake of energy was 1802 Kcal/day. The intake of protein, calcium, iron, zinc and magnesium were 70.7 g, 544.0 mg, 16.1 mg, 10.6 mg and 266.0 mg respectively. Percentage adequacy of nutrient intakes with reference to RDA recommendation showed 95% and 80% of subjects had sufficient RDA intakes, while energy, calcium, iron and zinc intake considered as insufficient. The mean birth weight of neonates was 3.0 kg and 13% of neonates showed low birth weight. Maternal height, weight, fundal height and haemoglobin level were significantly correlated with birth weight of neonates. Energy, protein and calcium intakes in the third trimester were significantly correlated with birth weight of neonates. Using the binary logistic regression analysis fundal height, haemoglobin level and energy intake of pregnant women were considered as predictor factors of birth weight of neonates.

Control of Cancer Growth Using Two Input Autonomous Fuzzy Nanoparticles

Fahimeh Razmi,Reihaneh Kardehi Moghaddam,Alireza Rowhanimanesh 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2015 NANO Vol.10 No.4

A major challenge in cancer therapy is destroying cancer cells with least side effects on healthy cells. In this paper, autonomous drug-encapsulated nanoparticle (ADENP) with a real feedback control is recommended to prevent from the growth of cancerous tumors and treatment of them. The proposed ADENPs, swarmly perform local drug delivery which leads to significant reduction in side effects on healthy tissues in comparison to global drug delivery. The proposed ADENPs every moment, take feedback directly from drugs and cancer cells and at any time decide how much drugs to release. Also, these ADENPs have the capability of distinguishing unhealthy from healthy tissues, and medication use of these nanoparticles is more efficient than drug carriers. Another feature of these ADENPs is their simple structure in comparison to nanorobots. Simulation results show that ADENPs successfully reduce the number of cancer cells with minimal side effects.

Enhanced Radiosensitivity and Chemosensitivity of Breast Cancer Cells by 2-Deoxy-D-Glucose in Combination Therapy

Fahimeh Aghaee,Jalil Pirayesh Islamian,Behzaad Baradaran 한국유방암학회 2012 Journal of breast cancer Vol.15 No.2

Breast cancer is the most common malignancy, and it is also the major cause of cancer-related deaths of women worldwide. Breast cancer treatment involves surgery, chemotherapy, radiation therapy, or combination therapy, and novel strategies are needed to boost the oncologic outcome. The non-metabolizable glucose analogue, 2-deoxy-D-glucose (2-DG) which inhibits glucose synthesis and adenosine triphosphate production, is one of the important discoveries involving the disturbances that can be caused to the process of the metabolism. The glucose analogue, 2-DG, is known as a tumor sensitizer to irradiation (IR) and chemotherapy, which help improve the treatment rates. It enhances the cytotoxicity via oxidative stress, which is more redundant in tumor cells than in normal ones. This article provides a brief summary on studies related to 2-DG chemo-/radio-sensitization effects by combination therapy of 2-DG/IR or 2-DG/doxorubicin.

Effect of Different Types of Diagnostic Criteria for Gestational Diabetes Mellitus on Adverse Neonatal Outcomes: A Systematic Review, Meta-Analysis, and Meta-Regression

Fahimeh Ramezani Tehrani,Marzieh Saei Ghare Naz,Razieh Bidhendi-Yarandi,Samira Behboudi-Gandevani 대한당뇨병학회 2022 Diabetes and Metabolism Journal Vol.46 No.4

Background: Evidence supporting various diagnostic criteria for diagnose gestational diabetes mellitus (GDM) are consensus-based, needs for additional evidence related to outcomes. Therefore, the aim of this systematic-review and meta-analysis was to assess the impact of different GDM diagnostic-criteria on the risk of adverse-neonatal-outcomes.Methods: Electronic databases including Scopus, PubMed, and Web of Sciences were searched to retrieve English original, population-based studies with the universal GDM screening approach, up to January-2020. GDM diagnostic criteria were classified in seven groups and International Association of the Diabetes and Pregnancy Study Groups (IADPSG) was considered as reference one. We used the Mantel–Haenszel method to calculate the pooled odds of events. The possibility of publication bias was examined by Begg’s test.Results: A total of 55 population-based studies consisting of 1,604,391 pregnant women with GDM and 7,770,855 non-GDM counterparts were included. Results showed that in all diagnostic-criteria subgroups, the risk of adverse neonatal outcomes including macrosomia, hyperbilirubinemia, respiratory distress syndrome, neonatal hypoglycemia, neonatal intensive care unit admission, preterm birth, and birth-trauma were significantly higher than the non-GDM counterparts were significantly higher than non-GDM counterparts. Meta-regression analysis revealed that the magnitude of neonatal risks in all diagnostic-criteria subgroups are similar.Conclusion: Our results showed that the risk of adverse-neonatal-outcome increased among women with GDM, but the magnitude of risk was not different among those women who were diagnosed through more or less intensive strategies. These findings may help health-care-providers and policy-makers to select the most cost-effective approach for the screening of GDM among pregnant women.

A Probabilistic Algorithm for MANET Clustering

Fahimeh Dabaghi-Zarandi,Behrouz Minaei-Bidgoli,Zohreh Davarzani 보안공학연구지원센터 2014 International Journal of Future Generation Communi Vol.7 No.6

Mobile ad hoc network (MANET) is a type of ad hoc network that MANET nodes can change their locations and configure by themselves on the fly. Because of mobility the MANET nodes, the management of a large MANET is difficult, therefore, clustering in a MANET is an important technique. A large network is divided into several sub networks applying clustering method. When the topology of the network is dynamic and ad hoc, the process of clustering is very complicated. In this paper, we propose a Probabilistic Algorithm for MANET Clustering (PAMC) to improve the performance of this wireless technology. We simulate our algorithm and evaluate it based on two criteria: the average number of clusters and the average re-affiliation.