Online Prediction of Transient Instability by Wide Area Measurement System

In this paper an online accurate prediction method is proposed to enhance the speed of Transactionient stability assessment. This method is the measurement basis technique resulted from wide area measurement systems (WAMS). In the proposed method, the generators with same dynamic behavior, referred as to coherent generators, are clustered as a same group and they can be considered as an equivalent bus. So the system will be reduced into a small scale system. The admittance matrix parameters of the reduced system can be identified with the least square algorithm. Then the trajectory prediction is performed by real-time simulations. Obtained results from simulations on New England test system show the high noticeable efficiency for performance of the proposed method, capable in predicting of the disturbed trajectory under existence of unknown parameters in grid structure..

Antibody Production after COVID-19 Vaccination in Patients with Inborn Errors of Immunity

Background: Few studies have evaluated COVID-19 vaccine efficacy in patients with inborn errors of immunity (IEI).Objective: To evaluate the levels of antibody (Ab) production and function after COVID-19 vaccination in IEI patients with phagocytic, complement, and Ab deficiencies and their comparison with healthy controls.Methods: Serum samples were collected from 41 patients and 32 healthy controls at least one month after the second dose of vaccination, while clinical evaluations continued until the end of the third dose. Levels of specific anti-receptor-binding domain (RBD) IgG and anti-RBD neutralizing antibodies were measured using EUROIMMUN and ChemoBind kits, respectively. Conventional SARS-CoV-2 neutralization test (cVNT) was also performed. Cutoff values of ≤20, 20-80, and ≥80 (for cVNT and Chemobined) and 0.8-4.2, 4.2-8.5, and ≥8.5 (for EUROIMMUN) were defined as negative/weak, positive/moderate, and positive/significant, respectively.Results: A considerable distinction was observed between the Ab-deficient patients and the controls for Ab concentration (EUROIMMUN, p<0.01) and neutralization (ChemoBind, p<0.001). However, there was no significant difference compared with the other patient groups. A near-zero cVNT in Ab-deficient patients was found compared to the controls (p<0.01). A significant correlation between the two kits was found using the whole data (R2=0.82, p<0.0001).Conclusion: Despite varying degrees of Ab production, all Ab deficient patients, as well as almost half of those with complement and phagocytic defects, did not effectively neutralize the virus (cVNT). In light of the decreased production and efficiency of the vaccine, a revised immunization plan may be needed in IEI

Impaired IL-23-dependent induction of IFN-gamma underlies mycobacterial disease in patients with inherited TYK2 deficiency

Human cells homozygous for rare loss-of-expression (LOE) TYK2 alleles have impaired, but not abolished, cellular responses to IFN-alpha/beta (underlying viral diseases in the patients) and to IL-12 and IL-23 (underlying mycobacterial diseases). Cells homozygous for the common P1104A TYK2 allele have selectively impaired responses to IL-23 (underlying isolated mycobacterial disease). We report three new forms of TYK2 deficiency in six patients from five families homozygous for rare TYK2 alleles (R864C, G996R, G634E, or G1010D) or compound heterozygous for P1104A and a rare allele (A928V). All these missense alleles encode detectable proteins. The R864C and G1010D alleles are hypomorphic and loss-of-function (LOF), respectively, across signaling pathways. By contrast, hypomorphic G996R, G634E, and A928V mutations selectively impair responses to IL-23, like P1104A. Impairment of the IL-23-dependent induction of IFN-gamma is the only mechanism of mycobacterial disease common to patients with complete TYK2 deficiency with or without TYK2 expression, partial TYK2 deficiency across signaling pathways, or rare or common partial TYK2 deficiency specific for IL-23 signaling.ANRS Nord-Sud ; CIBSS ; CODI ; Comité para el Desarrollo de la Investigación ; Fulbright Future Scholarshi

The efficacy of schema therapy on coping styles and body image concerns in obese people with binge-eating disorder : A single subject study

Background: Inefficient coping styles and concern about body image are among the components that affect obese people with binge-eating disorders and lead to unhealthy eating behaviors. However, deep psychological interventions that focus on these components have received less attention. Considering that schema therapy is an integrated, deep, and effective treatment, the question of the current research is whether this intervention can affect coping styles and body image concerns in obese people with binge-eating disorders. Aims: The purpose of the study was the effectiveness of schema therapy on coping styles and body image concerns in obese people with binge eating disorder. Methods: The design of the current research was semi-experimental with a single-subject structure, including baseline, intervention and follow-up. The statistical population of the study included all obese women suffering from overeating who referred to a slimming clinic in Tehran in 2021-2022. The research sample consisted of eight obese women. The research tools were Young and Rygh's extreme compensation questionnaire (1994), Young and Rygh's avoidance questionnaire (1994), Fairburn’s eating disorder symptoms questionnaire (2008) and semi-structured interview and schema therapy protocol (Simpson, 2018). For data analysis, percentage of non-overlapping data, improvement percentage, valid change index and trend chart were used. Results: Indicators of improvement percentage, percentage of non-overlapping data, and reliable change index in the avoidance variable for the second, fourth, sixth, seventh, and eighth participants; In the variable of extreme compensation for the fourth, sixth, seventh, and eighth participants and in the variable of physical concerns, all the participants had a significant improvement in the intervention and follow-up stage (they had an RCI higher than 1.96), which indicates The efficacy and stability of schema therapy results. Conclusion: Considering the effectiveness of schema therapy on extreme avoidance and compensation styles and body image concerns, it is suggested to pay attention to the physical components in the treatment of obese people suffering from overeating, to psychological components such as maladaptive schemas and coping styles arising from them

Effect of Bacterial Lipopolysaccharide Contamination on Gutta Percha- versus Resilon-Induced Human Monocyte Cell Line Toxicity.

Cytotoxic effects of obturation materials were tested in presence and absence of endotoxin on human monocytes in vitro.Human monocytes from THP-1 cell line were cultured. Three millimeters from the tip of each Resilon and gutta percha points were cut and directly placed at the bottom of the culture wells. Cultured cells were exposed to gutta percha (groups G1 and G2) and Resilon (R1 and R2). Ten μg/ml bacterial lipopolysaccharide (LPS) was added to the culture wells in groups G1 and R1. Positive control included the bacterial LPS without the root canal filling material and the negative control contained the cells in culture medium only. Viability of cells was tested in all groups after 24, 48, and 72 hours using the methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay for at least 3 times to obtain reproducible results. Optical density values were read and the data were analyzed using three-way ANOVA and post hoc statistical test.The results showed that cells in G2 had the lowest rate of viability at 24 hours, but the lowest rate of viable cells was recorded in G1 at 48 and 72 hours. The effect of LPS treatment was not statistically significant. Resilon groups showed cell viability values higher than those of gutta percha groups, although statistically non-significant (P=0.105). Cell viability values were lower in gutta percha than Resilon groups when LPS-treated and LPS-untreated groups were compared independently at each time point.It could be concluded that none of the tested root canal filling materials had toxic effects on cultured human monocyte cells whether in presence or absence of LPS contamination

The Prevalence of Allergic Rhinitis and It's Relationship With Second-Hand Tobacco Smoke Among Adults in Iran

To determine the prevalence of allergic rhinitis (AR) among adult residents and investigate whether second-hand tobacco smoke (SHS) is correlated with AR as one of the global health problems and one of the most common respiratory disorders reducing the quality of life. A telephone interview survey was conducted by calling 16500 randomly selected telephone numbers from 22 regional telecommunications of Tehran (capital city of Iran) in 2010. A modified European Community Respiratory Health Survey (ECRHS) questionnaire was completed for adults aged between 20 to 44-year-old. Two questions about active smoking and being exposed to SHS were added to the questionnaire. five thousands five hundred cases (76.92%) responded to our calls among 7150 eligible telephone numbers. The gender of study population included 3412 female (62%) and 2088 male (38%) with the mean±SD age of 31.15±7.33. The prevalence of AR was 26.7%. There were no significant relationship between active smoking and AR; while a significant relationship was detected between SHS and AR among our participants (P=0.02). However, no significant difference was found between men and women. In addition, more than 50% of adults suffering from AR, showed significant symptoms of asthma (P<0.001). The results of the current study revealed that the prevalence of AR was higher in Iran compared to other countries worldwide and SHS may be considered as a serious risk factor for AR

Woman-centered care and associated factors among midwives working in urban health centers and public and private hospitals in Tabriz, Iran: a cross-sectional study

Abstract Background Woman-centered care (WCC) is the cornerstone of the midwifery profession. However, no study has been conducted on WCC provided by Iranian midwives and its associated factors. Thus, this study aimed to determine WCC and factors associated with midwives’ WCC for midwives working in urban health centers and public and private hospitals in Tabriz, Iran. Methods This cross-sectional study was the first part (i.e., the quantitative phase) of a sequential explanatory mixed-method study conducted on 575 midwives working in urban health centers and public and private hospitals in Tabriz-Iran from November 2022 to January 2023. The required data was collected by distributing a socio-demographic and job characteristics questionnaire and woman-centered care scale-midwife self-report (WCCS-MSR). To determine the factors associated with WCC, an independent t-test or one-way analysis of variance (ANOVA) was used in bivariate analysis, and a general linear model (GLM) was employed in multivariate analysis to control possible confounding variables. Results The statistical population consisted of 575 midwives, with a response rate of 88.2%. According to the GLM, the total mean WCCS-MSR score of single [β (95% CI) 23.02 (7.94 to 38.10)] and married [β (95% CI) 21.28 (6.83 to 35.72)] midwives was significantly higher than that of divorced midwives after adjusting their demographic and job characteristics. Also, the total mean WCCS-MSR score of midwives with sufficient income was significantly higher than those with insufficient income [β (95% CI) 8.94 (0.12 to 17.77). In addition, the total mean WCCS-MSR score of midwives with < 5 years of work experience [β (95% CI) − 7.87 (− 14.79 to − 0.94)], and midwives with official-experimental employment status [β (95% CI) − 17.99 (− 30.95 to − 5.02)], was significantly lower than those with more than 5 years of work experience and contractual employment status. Conclusions The findings indicate that marital status, level of income, years of practice, and employment status were significantly related to WCC provided by midwives. Focusing only on the midwifery community is insufficient to ensure the improved quality of WCC. However, arrangements should be made at three levels, including policy-makers, managers, and health care provider (midwives)

Evaluation of woman-centred care status by Iranian midwives and providing strategies to improve women-centred care: A sequential explanatory mixed method study protocol

Aim: The present study aimed to evaluate the status of WCC provided by Iranian midwives. Design: A sequential explanatory mixed method study protocol. Methods: The present study was conducted in three phases: quantitative, qualitative and mixed. The first phase is a cross-sectional study that will be performed on midwives working in health centres, public and private hospitals in Iranian. The second phase is a qualitative study, in which purposeful sampling will be used, meaning that the midwives who are part of the extreme cases according to the results of quantitative phase and are willing and able to express their own experiences regarding WCC will be selected. Also, pregnant and parturient women under their cover will also be interviewed. Finally, in the mixed phase, we will use a combination of two quantitative and qualitative studies, a literature review and expert opinion using a Delphi method to provide strategies to improve and promote WCC in midwives. Results: Achieving this goal is expected to provide positive outcomes such as strengthening the midwives professional relationship with women and reducing health care costs. No Patient or Public Contribution

Woman-centered care and associated factors among midwives working in urban health centers and public and private hospitals in Tabriz, Iran: a cross-sectional study

Background: Woman-centered care (WCC) is the cornerstone of the midwifery profession. However, no study has been conducted on WCC provided by Iranian midwives and its associated factors. Thus, this study aimed to determine WCC and factors associated with midwives’ WCC for midwives working in urban health centers and public and private hospitals in Tabriz, Iran. Methods: This cross-sectional study was the first part (i.e., the quantitative phase) of a sequential explanatory mixed-method study conducted on 575 midwives working in urban health centers and public and private hospitals in Tabriz-Iran from November 2022 to January 2023. The required data was collected by distributing a socio-demographic and job characteristics questionnaire and woman-centered care scale-midwife self-report (WCCS-MSR). To determine the factors associated with WCC, an independent t-test or one-way analysis of variance (ANOVA) was used in bivariate analysis, and a general linear model (GLM) was employed in multivariate analysis to control possible confounding variables. Results: The statistical population consisted of 575 midwives, with a response rate of 88.2%. According to the GLM, the total mean WCCS-MSR score of single [β (95% CI) 23.02 (7.94 to 38.10)] and married [β (95% CI) 21.28 (6.83 to 35.72)] midwives was significantly higher than that of divorced midwives after adjusting their demographic and job characteristics. Also, the total mean WCCS-MSR score of midwives with sufficient income was significantly higher than those with insufficient income [β (95% CI) 8.94 (0.12 to 17.77). In addition, the total mean WCCS-MSR score of midwives with \u3c 5 years of work experience [β (95% CI) − 7.87 (− 14.79 to − 0.94)], and midwives with official-experimental employment status [β (95% CI) − 17.99 (− 30.95 to − 5.02)], was significantly lower than those with more than 5 years of work experience and contractual employment status. Conclusions: The findings indicate that marital status, level of income, years of practice, and employment status were significantly related to WCC provided by midwives. Focusing only on the midwifery community is insufficient to ensure the improved quality of WCC. However, arrangements should be made at three levels, including policy-makers, managers, and health care provider (midwives)