Identidad profesional y capital psicológico como determinantes del agotamiento en profesores de inglés como lengua extranjera: El papel mediador de la autorregulación

This study delves into the intricate web of relationships among professional identity, psychological capital, self-regulation, and burnout in a cohort of 434 English as a Foreign Language (EFL) educators. Employing validated measures and structural equation modeling, we unravel these critical connections. Professional identity emerges as a robust predictor, significantly linked to reduced burnout. Additionally, psychological capital exerts a positive influence on self-regulation, highlighting its significance within the EFL teaching context. Self-regulation, in turn, negatively impacts burnout. Mediation analysis solidifies the role of self-regulation: it partially mediates the relationship between professional identity and burnout and fully mediates the connection between psychological capital and burnout. This research deepens our comprehension of EFL teaching psychology and carries implications for both practitioners and policymakers.Este estudio explora las complejas relaciones entre la identidad profesional, el capital psicológico, la autorregulación y el agotamiento en una muestra de 434 docentes de inglés como lengua extranjera (EFL). Utilizando medidas validadas y modelado de ecuaciones estructurales, desentrañamos estas conexiones críticas. La identidad profesional emerge como un predictor sólido, relacionado significativamente con la reducción del agotamiento. Además, el capital psicológico ejerce una influencia positiva en la autorregulación, resaltando su importancia en el contexto de la enseñanza de EFL. A su vez, la autorregulación impacta negativamente en el agotamiento. El análisis de mediación solidifica el papel de la autorregulación: media parcialmente la relación entre la identidad profesional y el agotamiento y media completamente la conexión entre el capital psicológico y el agotamiento. Esta investigación profundiza nuestra comprensión de la psicología en la enseñanza de EFL y tiene implicaciones tanto para los profesionales como para los responsables de políticas.

A review of IPv6 multihoming solutions

Abstract -Multihoming is simply defined as having connection to the Internet through more than one Internet service provider. Multihoming is a desired functionality with a growing demand because it provides fault tolerance and guarantees a continuous service for users. In the current Internet, which employs IPv4 as the network layer protocol, this functionality is achieved by announcing multihomed node prefixes through its all providers. But this solution, which employs Border Gateway Protocol, is not able to scale properly and adapt to the rapid growth of the Internet. IPv6 offers a larger address space compared to IPv4. Considering rapid growth of the Internet and demand for multihoming, the scalability issues of the current solution will turn into a disaster in the future Internet with IPv6 as the network layer protocol. A wide range of solutions have been proposed for multihoming in IPv6. In this paper, we briefly review active solutions in this area and perform an analysis, from deployability viewpoint, on them

On weak law of large numbers for sums of negatively superadditive dependent random variables

In this paper, we extend Kolmogorov–Feller weak law of large numbers for maximal weighted sums of negatively superadditive dependent (NSD) random variables. In addition, we make a simulation study for the asymptotic behavior in the sense of convergence in probability for weighted sums of NSD random variables

On weak law of large numbers for sums of negatively superadditive dependent random variables

In this paper, we extend Kolmogorov–Feller weak law of large numbers for maximal weighted sums of negatively superadditive dependent (NSD) random variables. In addition, we make a simulation study for the asymptotic behavior in the sense of convergence in probability for weighted sums of NSD random variables

Epidemiology of neonatal congenital hypothyroidism during 2011-2017

Introduction: Neonatal hypothyroidism is a condition of treatable thyroid deficiency that can lead to severe retardation if not diagnosed on time or inappropriately treated. The present study is an epidemiologic study of neonatal congenital hypothyroidism in Lordegan during 2012-2018. Materials and Methods: This descriptive-analytical study was performed to evaluate the epidemiological characteristics of congenital hypothyroidism. The data were entered into SPSS version 20 software and analyzed by statistical tests, Chi square, ANOVA, T-Test, Pearson Correlation and Spearman Correlation at 0.05 Level. Results: The analysis of 7-years data showed that from the screening of 39332 newborns, 335 were identified as definitive patients, 159 males, 176 females, 275 rural (82.1%) and 169 neonates with a history of family marriage (50.4%). There was a significant relationship between neonatal birth weight and congenital hypothyroidism (P = 0.000). There was a significant relationship between type of delivery and hypothyroidism (P = 0.000). In the treated children, there was a direct relationship between the age of onset of treatment and their TSH level, which was statistically significant (P = 0.013). Conclusion: Due to the high prevalence of congenital hypothyroidism in Lordegan, it is necessary to study further the factors affecting the incidence of congenital hypothyroidism as well as educate pregnant women and timely screening for this disease. keywords: Congenital Hypothyroidism, Epidemiology, Neonata

Network Topology Effecton QoS Delivering in Survivable DWDM Optical Networks, Journal of Telecommunications and Information Technology, 2009, nr 1

The quality of service (QoS) is an important and considerable issue in designing survivable dense wavelength division multiplexing (DWDM) backbones for IP networks. This paper investigates the effect of network topology on QoS delivering in survivable DWDM optical transport networks using bandwidth/load ratio and design flexibility metrics. The dedicated path protection architecture is employed to establish diverse working and spare lightpaths between each node pair in demand matrix for covering a single link failure model. The simulation results, obtained for the Pan-European and ARPA2 test bench networks, demonstrate that the network topology has a great influence on QoS delivering by network at optical layer for different applications. The Pan-European network, a more connected network, displays better performance than ARPA2 network for both bandwidth/load ratio and design flexibility metrics

Mapping geographical inequalities in access to drinking water and sanitation facilities in low-income and middle-income countries, 2000-17

Background: Universal access to safe drinking water and sanitation facilities is an essential human right, recognised in the Sustainable Development Goals as crucial for preventing disease and improving human wellbeing. Comprehensive, high-resolution estimates are important to inform progress towards achieving this goal. We aimed to produce high-resolution geospatial estimates of access to drinking water and sanitation facilities. Methods: We used a Bayesian geostatistical model and data from 600 sources across more than 88 low-income and middle-income countries (LMICs) to estimate access to drinking water and sanitation facilities on continuous continent-wide surfaces from 2000 to 2017, and aggregated results to policy-relevant administrative units. We estimated mutually exclusive and collectively exhaustive subcategories of facilities for drinking water (piped water on or off premises, other improved facilities, unimproved, and surface water) and sanitation facilities (septic or sewer sanitation, other improved, unimproved, and open defecation) with use of ordinal regression. We also estimated the number of diarrhoeal deaths in children younger than 5 years attributed to unsafe facilities and estimated deaths that were averted by increased access to safe facilities in 2017, and analysed geographical inequality in access within LMICs. Findings: Across LMICs, access to both piped water and improved water overall increased between 2000 and 2017, with progress varying spatially. For piped water, the safest water facility type, access increased from 40·0% (95% uncertainty interval [UI] 39·4–40·7) to 50·3% (50·0–50·5), but was lowest in sub-Saharan Africa, where access to piped water was mostly concentrated in urban centres. Access to both sewer or septic sanitation and improved sanitation overall also increased across all LMICs during the study period. For sewer or septic sanitation, access was 46·3% (95% UI 46·1–46·5) in 2017, compared with 28·7% (28·5–29·0) in 2000. Although some units improved access to the safest drinking water or sanitation facilities since 2000, a large absolute number of people continued to not have access in several units with high access to such facilities (>80%) in 2017. More than 253 000 people did not have access to sewer or septic sanitation facilities in the city of Harare, Zimbabwe, despite 88·6% (95% UI 87·2–89·7) access overall. Many units were able to transition from the least safe facilities in 2000 to safe facilities by 2017; for units in which populations primarily practised open defecation in 2000, 686 (95% UI 664–711) of the 1830 (1797–1863) units transitioned to the use of improved sanitation. Geographical disparities in access to improved water across units decreased in 76·1% (95% UI 71·6–80·7) of countries from 2000 to 2017, and in 53·9% (50·6–59·6) of countries for access to improved sanitation, but remained evident subnationally in most countries in 2017. Interpretation: Our estimates, combined with geospatial trends in diarrhoeal burden, identify where efforts to increase access to safe drinking water and sanitation facilities are most needed. By highlighting areas with successful approaches or in need of targeted interventions, our estimates can enable precision public health to effectively progress towards universal access to safe water and sanitation

THE STUDY OF THE EFFECTIVENESS OF TRAINING THE PRINCIPLES OF IMPROVING THE RELATIONSHIPS BASED ON GOTTMAN'S METHOD ON COUPLES' MARITAL SATISFACTION IN TEHRAN

ABSTRACT Background and Aims: marital satisfaction is one of the most important factors of progress and achieving life goals which is affected by couples' emotional stability. Therefore, the purpose of this research was to study the effectiveness of training the principles of improving the relationships based on Gottman's method on couples' marital satisfaction in Tehran. Materials and Method: It was a quasiexperimental research with pretest-posttest and control group. Statistical population involved all the couples without child that at least two years have passed since their marriage and they referred to psychotherapy and family health clinics in Tehran in 2013 and 2014. The sample included 40 couples who referred to these clinics to get marital counseling and they were selected by random cluster sampling. Then, they randomly divided into control and experimental groups (20 couples in each group). ENRICH couple scale (1997) and Gottman's couples' therapy scale (2009) was used to collect data in both pretest and posttest. The experimental group exposed to the independent variable (training the principles of improving the relationships based on Gottman's method) for two sessions of five hours. Statistical analyses performed to analyze data included ANCOVA test. Findings: The findings showed that training the principles of improving the relationships based on Gottman's method had no significant effect on couples' marital satisfaction (P > .05); but has been effective on its subscales (emotional relationships, quality of sexual relationships s, trust, compromise and commitment) (P ≤ .05). Results: The results showed that training the principles of improving the relationships based on Gottman's method can be a very effective way to increase marital satisfaction subscales and improve the couples' relationships

Cryptanalysis of the Fast Lightweight Mutual Authentication Protocol

Security counts as a critical barrier to continuing growth of RFID industry due to lack of a proper high performance lightweight protocol-based solution. Amongst recent developments the Fast Lightweight Mutual Authentication Protocol (FLMAP) has been accepted for its superior speed and low complexity features. Here we examine the security strengths of FLMAP through systematic cryptanalysis tests. Outcome of our investigation show that in spite of its superior speed and power saving features FLMAP shows some serious design gaps and shortfalls against two specifically selected desynchronization and ID disclosure attacks. Finally, we propose solutions to fix the FLMAP designing and security flaws

Effect of Milrinone on Short Term Outcome of Patients with Myocardial Dysfunction Undergoing Off-Pump Coronary Artery Bypass Graft: A Randomized Clinical Trial

Myocardial dysfunction is a major complication in cardiac surgery that needs inotropic support. This study evaluates the effect of milrinone on patients with low ventricular ejection fraction undergoing off- pump coronary artery bypass graft (OPCAB). The present study is designed to evaluate the effect of milrinone on myocardial dysfunction. Eighty patients with low ventricular ejection fraction (<35%), candidate for elective OPCAB, were enrolled in this study. They were randomly assigned to two groups. One group received milrinone (50 μg/kg) intravenously and another group received a saline as placebo followed by 24 hours infusion of each agent (0.5 μg/kg/min). Short outcome of patients such as hemodynamic parameters and left ventricular ejection fraction were variables evaluated. Serum levels of creatine phosphokinase, the MB isoenzyme of creatine kinase, occurrence of arrhythmias and mean duration of mechanical ventilation were significantly lower in milrinone group (P<0.05). The mean post operative left ventricular ejection fraction was significantly higher in milrinone group (P=0.031). There were no statistical significant differences between the two groups in terms of intra-aortic balloon pump, inotropic support requirement, myocardial ischemia, myocardial infarction, duration of inotropic support, duration of intensive care unit stay, mortality and morbidity rate. Administration of milrinone in patients undergoing OPCAB with low ventricular ejection fraction is useful and effective