Study on effects of red light intensities and periods on growth performance of Caspian trout (Salmo trutta caspius) larvae

Survey is conducted to evaluate the effects of different intensities and durations of red light spectrums on growth performance and survival of Caspian trout (Salmo trutta caspius) in Coldwater Fishes Research Center (CFRC). According to the standard methods and manuals, selected 1.1±0.2 g (1755 individuals) larvae transferred from a registered and well-known hatchery and introduced to the fish tanks in CFRC after quarantine and adaptation procedures. The trial designed for 9 treatments with 3 repeats and fish tanks (California troughs) stocked by 65 larvae. All tanks were separated by dark plastic sheets individually to more controlling actions on special lighting regimes, except controls. Lighting actions were conducted as long as survey stage for 36 days by economic lamps (P: 40/50 W, =550/880 lum) on lighting durations of 12/12, 10/14, 14/10 h (on/off) and 24 (on) by 40/50 W lamps respectively for treatment 1 to 8. Controls are considered in treatment No. 9 by natural and environmental lighting regime. The biometry operations were carried out in a 6 days interval. Results were analyzed with SPSS (Version 12) software and by ANOVA one way analysis method and multiple levels of Duncan Test; graphs were illustrated by Excel software. According to the results, most of the measured factors as growth indicators (FW, WG, FCR and SGR) in treatments (1-8) had showed significant differences in compare of control. In this case, oily drips in retina layer of eye s larvae absorb the short light spectrums and let the long spectrums to be transferred. Thus because of more vision, feeding behavior could develop with lower stress condition. Moreover, some growth factor (SGR, WG and FCR) rates in larvae showed better values significantly in treatment (1) (12/12 h lighting with 550 lum) in compare of other treatments and controls (P≤ 0.05). In addition, there are not any harmonized and expected growth parameters with synchronized red lighting intensities and durations in the Caspian trout larvae. It seems that recent demonstrations were influenced by physiological effects of some endocrinal glands and brain neurotransmitters

The quantum exchange effects on the electromagnetic solitonic excitations in warm plasma

The phenomena related to the high energy regime in a plasma medium are studied in the framework of relativistic quantum hydrodynamics at the classical level. This theory leads to nonlinear equations even at the weak relativistic regime. These nonlinearities give rise to interesting and novel phenomena in the dynamics of the medium. Here, we consider these effects on the dynamics of a warm plasma environment. In addition, we study the effects of the exchange interaction between electrons on the dynamic of such a plasma. This interaction is a quantum mechanical effect and its strength is influenced by the spin polarization ratio of the electrons. Both the analytical and the numerical solutions are presented which are stable and bounded soliton waves. For the analytical solutions, an extended tanh approach, and for the numeric approach, the techniques of solving eigenvalue problems are applied. The behavior of the vector potential and the density under the spin polarization effects and thermal effects in terms of the speed of the wave are discussed

Social Determinant of Mental Health in Immigrants and Refugees: A Systematic Review

Background: Refugees are the most vulnerable to mental health problems of all migrant groups. Epidemiological studies measuring the prevalence of mental health disorders in resettled refugee populations have found high rates of psychiatric disorders, including post-traumatic stress disorder (PTSD), depression, and anxiety. To investigate the evidence of Social Determinant of Mental Health in Immigrants and Refugees Methods: We searched PubMed, Web of Science, Embase, Scopus, Cochrane Library, and ProQuest databases electronically. The interval selected for searching articles was between 2000-2021. After selecting articles based on inclusion and exclusion criteria, data were extracted, and the results were summarized. Results: Among 306 initial studies, 11 studies were the inclusion criteria. In these studies, the target population was people who had immigrated to countries or become refugees for various reasons. In 7 of 11 studies, social factors affecting the mental health of refugees were examined. In four studies, these factors were examined in immigrants. In most studies, social determinants of mental health were common among refugees and migrants. Conclusion: Improving each of the determinants of health plays an important role in increasing the level of mental health of immigrants and refugees. © 2021 Iran University of Medical Sciences. All Rights Reserved

Economic Evaluation of Denosumab for Treatment of Postmenopausal Osteoporosis: A Systematic Review

Background: We aimed to review the systematic economic evaluation of denosumab versus than alternative drugs and oral bisphosphonates of postmenopausal osteoporosis in women and help health system policy makers for prioritizing and optimally allocate limited health resources. Methods: We examined the databases of PubMed, Web of Science, Embase, Scopus, Cochrane Library, ProQuest. Strategy search was designed based on keywords. Inclusion criteria were: studies that conducted economic evaluation denosumab compared to oral bisphosphonates for the treatment of osteoporosis in postmenopausal women. Cost-effectiveness studies conducted using decision analysis models based on the economic evaluation approach; studies with available full-text papers; and studies written in English and published between 2010 and 2020. After selecting articles based on inclusion and exclusion criteria, data were extracted and the results were summarized. The quality of the articles was evaluated using the CHEERS checklist. Results: Among 214 initial studies, 8 studies met the inclusion criteria. Most studies focused on the costeffectiveness of denosumab compared with oral bisphosphonates for the treatment of osteoporosis. The study agreed interval ranged from 3 months to 5 years. The costs investigated in the studies were direct medical costs. In most studies, the use of denosumab significantly prevented fractures. Conclusion: Denosumab is generally more cost-effective than alternative drugs and oral bisphosphonates (alendronate, risedronate, strontium ranelate, ibandronate, and untreated)

Economic evaluation of laboratory diagnostic test types in Covid-19 epidemic: A systematic review

BACKGROUND: Corona 2 virus (SARS-CoV-2) is known as the causative agent of COVID-19 disease; the World Health Organization (WHO) declared it an epidemic on March 11, 2020. The Joint Guidelines of the Centers for Disease Control and Prevention (CDC) and the WHO including social distancing, the use of face masks, emphasis on hand washing, quarantine, and using diagnosis tests have been used widely, but the value of diagnostic interventions to prevent the transmission of SARS-CoV-2 is unclear. We compared the economic evaluation of different laboratory diagnostic interventions with each other and also with implementing the conservative CDC & WHO guidelines. MATERIAL AND METHODS: Electronic searches were conducted on PubMed, Embase, Science Direct, Scopus, Cochrane Library, Web of Knowledge, NHSEED, NHS Health Technology assessment (CRD), and Cost-Effectiveness Analysis Registry databases. Related articles were reviewed from January 2020 to the end of November 2021. RESULTS: Out of 1791 initial studies, 13 articles had the inclusion criteria. According to the Consolidated Health Economic Evaluation Reporting Standards (CHEERS) checklist, ten studies were of excellent quality, and the remaining two studies were of very good quality. Most studies were cost-effectiveness analysis studies. The entered studies had different time horizons. Diagnostic tests reviewed in the studies included real-time polymerase chain reaction (RT-PCR) test, immunoglobulin G (IgG) & Antigen, point of care tests. Although polymerase chain reaction (PCR) testing improves the quality of life and survival for patients with infected Covid-19 based on its greater effectiveness compared to standard protection protocols, due to the high cost of this intervention, it has been considered a cost-effective method in some countries. CONCLUSION: Since most studies have been conducted in developed countries, it unquestionably does not make sense to extend these results to low-income and developing countries. Therefore further studies are required in low-income and developing countries to evaluate the cost-effectiveness of laboratory-based diagnostic methods (RT-PCR) of covid-19 in variable prevalence of infectious cases

Cost-effectiveness of osimertinib in the treatment of advanced EGFR-mutated non-small cell lung cancer: a systematic review.

BACKGROUND: The most common type of lung cancer is advanced and mutant non-small cell lung cancer (NSCLC). Although targeted tyrosine kinase inhibitors (TKIs) have reconstructed the care of these patients, the resistance of TKIs to the secondary EGFR-T790M mutation in advanced or metastatic NSCLC led to the introduction of the third generation of them, like osimertinib. Osimertinib has represented a remarkable increase in progression-free survival (PFS) and a decrease in death and hazard ratios in patients with required T790 mutation and sensitizing EGFR mutation without T790M. We aimed to evaluate the cost-effectiveness of osimertinib for the treatment of these patients compared to chemotherapy or immunotherapy with the last generations of EGFR-TKIs. AREAS COVERED: Electronic searches were conducted on PubMed, Embase, Science Direct, Scopus, , Web of Knowledge, NHSEED, NHS Health Technology assessment (CRD), and Cost-Effectiveness Analysis Registry databases. Related articles were reviewed from January 2015 to the end of August 2020. Out of 2708 initial studies, 10 articles had the inclusion criteria. EXPERT OPINION: Although osimertinib improves the quality of life and PFS for the mentioned patients based on its greater efficacy compared to standard EGFR-TKIs and chemotherapy, its high cost prevents considering it a cost-effective option. And, since most entered studies have been done in developed countries, it certainly does not true to extend these results to low-income and developing countries. Therefore, further studies in those countries are needed to evaluate the cost-effectiveness of osimertinib for sensitizing EGFR mutation without T790M and required T790M in advanced or metastatic NSCLC

Fasting hyperinsulinaemia and 2-h glycaemia predict coronary heart disease in patients with type 2 diabetes

International audienceAim: Patients with diabetes are at greater risk of cardiovascular events. Insulin resistance (IR) and hyperinsulinaemia are both related to an increased cardiovascular risk, but whether IR predicts coronary heart disease (CHD) independently of other risk factors in patients with type 2 diabetes (T2D) is a topic of considerable controversy. The aim of the present study was to evaluate the prospective relationship of fasting insulin, HOMA-IR, fasting plasma glucose (FPG) and 2-h post-load glucose (2hPG) load with CHD incidence among such patients. Methods A total of 2607 patients with T2D were enrolled in a community-dwelling cohort and followed for an average of 7.2 years. Conventional CHD risk factors, FPG, 2hPG, fasting insulin levels and HOMA-IR index were measured at baseline. Cox regression hazard ratios (HRs) were used to assess CHD risk. Results A total of 299 ‘hard’ CHD events were registered (in 114 women and 185 men). Increasing levels of fasting insulinaemia were positively associated with CHD incidence. This correlation persisted after controlling for gender, body mass index, blood pressure, lipid profile, medication use and HbA1c [HR for each increase in quartile (fully adjusted model): 1.18 (95% CI: 1.06–1.32); P < 0.01]. 2hPG showed a non-linear association with incident CHD [HR of highest vs lowest quartile: 1.64 (95% CI: 1.03–2.61)]. Fasting glycaemia was not associated with CHD risk, whereas HOMA-IR had a direct and independent correlation with CHD risk [HR for each one-quartile increase: 1.19 (95% CI: 1.07–1.34); P < 0.01]. Conclusion Fasting insulin levels are positively associated with incidence of CHD in T2D. Furthermore, 2hPG appears to be a significant predictor of incident CHD independently of other risk factors, including HbA1c. These findings suggest that strategies targeting the reduction of insulinaemia and post-load glycaemia may be useful for preventing cardiovascular complication

A Case Study Using the Analytic Hierarchy Process for IT Outsourcing Decision Making

Decisions related to managing IT resources - which resources to keep in-house and which resources to outsource - are critical to business success. The goal of this paper is to show the usefulness of the Analytic Hierarchy Process (AHP) as a decision-making tool for IT sourcing decisions, based on an analysis of factors that recent literature found to be associated with IT sourcing risk. Although the AHP previously has been suggested for IT outsourcing decision making, this study is the first to consider evaluating the risks of offshore outsourcing, rural outsourcing, and in-sourcing IT processes by using the AHP. From the perspective of the expert decision maker, three IT sourcing strategies were evaluated with respect to 58 criteria. The case study example presented in this paper shows the effectiveness of the AHP to support management for this business decision. The authors\u27 results show that a systematic approach to analyzing outsourcing can reduce the uncertainty and risk that is common in such decisions