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It is imperative to control radio-iodine discharges to atmosphere from nuclear reprocessing plants. Inhalation and ingestion of radio-iodine cause its concentration in the thyroid gland leading to risk of thyroid cancer in humans. Two isotopes of iodine viz. iodine-131 (131I) and iodine-129 (129I) are generated in considerable quantities in the nuclear fuel as fission products in the nuclear reactors. From nuclear reactors, no iodine is released to the atmosphere during normal operations, whereas from spent fuel reprocessing plants, during normal operation, iodine is discharged to the atmosphere, mainly through gaseous discharges. Shortly after the initial periods of reprocessing in 1944, iodine emission control methods were incorporated in the design of reprocessing plants. At the time of spent fuel discharge from reactor, quantity of 131I is high and can contribute radiation dose to humans during reprocessing operations. A delay or cooling period of spent fuel, before reprocessing for a definite number of days can reduce the quantities to below the permissible limits of discharge due to its short half-life of 8 days. 129I has a very long half-life, and is only significant for reprocessing plants of large throughput and high fuel burn-ups. Minimum required de-contamination factor (DF) for iodine for a reprocessing plant can be estimated from the limits of discharge of iodine stipulated by regulatory authority of each country. Though many processes were developed and demonstrated extensively in lab and pilot scale, only a few of these processes were found to be suitable for commercial deployment. This paper reviews systematically the operation experiences and performance characteristics of iodine control methods implemented so far. The review also focus on the effect of integrating various iodine control methods on the main reprocessing operations and thereby facilitate selection of the optimum iodine control method.Valproic acid (VPA), or sodium valproate, is a commonly used medication for seizure disorders, migraines, and mental illness. Although VPA is relatively safe, it still has several adverse effects; among these, VPA-induced encephalopathy is the most serious. Valproic acid-induced encephalopathy mainly manifests as acute or subacute encephalopathy and has been associated with hyperammonemia, L-carnitine deficiency, and urea cycle enzyme dysfunction. Delayed identification of VPA-induced encephalopathy could be potentially fatal. Here, we perform an extensive review of relevant literature pertaining to VPA-induced encephalopathy, including its epidemiology, clinical features, possible pathophysiology, risk factors, diagnosis, and treatment.
Psychiatric comorbidities may complicate depression treatment by being associated with increased role impairments. However, depression symptom severity might account for these associations. Understanding the independent associations of depression severity and comorbidity with impairments could help in treatment planning. This is especially true for depressed Veterans, who have high psychiatric comorbidity rates.
2,610 Veterans beginning major depression treatment at the Veterans Health Administration (VHA) were administered a baseline self-report survey that screened for diverse psychiatric comorbidities and assessed depression severity and role impairments. Logistic and generalized linear regression models estimated univariable and multivariable associations of depression severity and comorbidities with impairments. Population attributable risk proportions (PARPs) estimated the relative importance of depression severity and comorbidities in accounting for role impairments.
Nearly all patients (97.8%) sdity are pervasive among depressed VHA patients, depression severity accounts for most of the associations of these comorbidities with role impairments.
Physical inactivity exacerbates poorer sleep quality, but potential underlying mechanisms of this association remain unknown. The present study aims to disentangle the pathways linking psychical activity to sleep quality through the serial mediation effect of anxiety and depression in a Chinese population.
Data analyzed were from Guangdong Sleep and Psychosomatic Health Survey, a cross-sectional population-based study with a representative sample of adult inhabitants aged 18-85 years living in Guangdong province, China. A total of 13,768 participants were included with the response rate of 80.4%. Singe and serial mediation analyses were conducted to examine whether anxiety and depression mediated the relationship between physical activity and sleep quality, independently and jointly.
Both direct and indirect effects of physical activity on sleep quality were found. As predicted, anxiety and depression mediated the relationship between physical activity and sleep quality (B
=-0.17, 95% bootstrap CI -0.20 to -0.15; B
= -0.25, 95% bootstrap CI -0.28 to -0.21), respectively. In addition, serial mediation analyses indicated that the association of physical activity and sleep quality is mediated by anxiety and depression in a sequential manner (B=-0.13, 95% bootstrap CI -0.15 to -0.11).
The primary limitation of the study is the cross-sectional design, which limits the causal inference ability.
These findings highlight the role of anxiety and depression as serial mediators of the relationship between physical activity and sleep quality. Thus, exercise-based programs focusing on improving sleep could benefit from a multi-faceted approach therapeutically targeting psychiatric disorders.
These findings highlight the role of anxiety and depression as serial mediators of the relationship between physical activity and sleep quality. Thus, exercise-based programs focusing on improving sleep could benefit from a multi-faceted approach therapeutically targeting psychiatric disorders.
Postpartum depression (PPD) is highly prevalent with a major impact on the mother and child health. Omilancor We aimed to determine the prevalence of PPD in primary health care centres which provide vaccinations services to infants in Assiut city and to evaluate the possible risk factors associated with PPD.
In this multicentre study, 257 mothers attended three primary health care centres for immunization of their babies were recruited from January 2019 to January 2020. All participants were evaluated for socio-demographic features, Family affluence scale (FAS), Edinburgh Postnatal Depression Scale (EPDS) and associated risk factors.
The mean age of the participants was 27.98 ± 4.7. About half of the mothers and their husbands had low education level. Most of the families (89%) have low socioeconomic scale (SES). About (33.5%) women were found to have possible PPD. In the logistic regression analysis, SES, history of depression, history of PPD, history of stressful conditions, familial support, unwanted pregnancy, and male preference were significant statistical in PPD (p<0.05).
We did not investigate the medical and psychological problems during antenatal care. Also, we did not assess relation of the type of delivery and medical problems during delivery on the postnatal care.
PPD was prevalent in 33.5% The possible risk factors of PPD were low SES, history of depression, history of PPD, history of stressful conditions, familial support, unwanted pregnancy, and male preference.
PPD was prevalent in 33.5% The possible risk factors of PPD were low SES, history of depression, history of PPD, history of stressful conditions, familial support, unwanted pregnancy, and male preference.
Russia has a high burden of suicide and alcohol-attributable mortality. However there have been few studies of the epidemiology of depression.
The study population was 5077 men and women aged 35-69 years from a cross-sectional population based survey in the cities of Arkhangelsk and Novosibirsk (2015-17). Moderate depression was defined as Patient Health Questionnaire-9 (PHQ-9) score≥10. Risk factors considered were socio-demographic factors (age, sex, marital status, living alone, education, employment status, financial constraints); health behaviours (smoking, alcohol use) and psycho-social factors (life events and social support).
After mutual adjustment for all other factors, there was evidence that PHQ-9≥10 was associated with sex (higher in women), financial constraints, employment status, being a non-drinker, problem drinking, smoking, not having enough people to confide in and the number of life events in the past 6 months. Employment status was more strongly associated in men (OR 1.84 (95%CI 1. for depression among the Russian general population consistent with findings from other populations. The strikingly strong association with financial constraints indicates the importance of social inequality for the burden of depression.
Bipolar Affective Disorder (BPAD) accounts for 10-25% of all mood disorders in the geriatric population and 5% of all inpatient admissions to geropsychiatric units. Electroconvulsive therapy (ECT) is an effective treatment for all phases of BPAD, though only a few studies have focused on BPAD in the geriatric population. This study examines the safety and efficacy of ultra-brief right unilateral (UBRUL) ECT for patients with late-life bipolar depression (BD).
A retrospective chart review was conducted of patients with late-life BD who received UBRUL ECT treatments. Symptomatic response was measured using pre- and post-ECT Quick Inventory of Depressive Symptomatology (QIDS-SR16) and Beck Depression Inventory (BDI-II) scores. Clinical improvement and cognitive change were measured using Clinical Global Impression-Improvement (CGI-I) and Electroconvulsive Cognitive Assessment (ECCA) scores.
Twenty-Seven elderly patients (mean age 69.1 ± 7.7 years) were included in the analysis. Baseline QIDS-SR16 was 17.3 ± 5.3 and BDI-II 30.0 ± 9.2. 80.0% (16/20) and 57.1% (4/7) of patients achieved response (50.0% decline) in their QIDS-SR16 and BDI-II scores, respectively. Remission rates in QIDS-SR16 (post-ECT scores ≤5) and BDI-II (post-ECT scores ≤12) were 65.0% (13/20) and 42.9% (3/7), respectively. Mean QIDS-SR16 and BDI-II scores were reduced by a statistically significant 68.2% and 50.5%, respectively (two-tailed, paired p-values <0.01) after ECT. CGI-I of ≤2 was attained by 85.2% (23/27) of patients. 85.7% (12/14) of patients saw no change or improvement in ECCA scores.
Inherent complications of chart review regarding quality, availability, and homogeny of data.
UBRUL ECT is a safe and effective treatment for patients presenting with late-life BD.
UBRUL ECT is a safe and effective treatment for patients presenting with late-life BD.
Prevention studies for perinatal depression rarely focus on the mother-infant dyad or consider the impact of maternal childhood maltreatment (CM).
A secondary analysis of two combined randomized controlled trials of Practical Resources for Effective Postpartum Parenting (PREPP) examined the moderating role of CM on the efficacy of preventing perinatal depression and effects on infant behavior at six weeks.
32% of 109 pregnant women endorsed CM (CM+). At six weeks postpartum, women who received PREPP compared to enhanced treatment as usual (ETAU) had significant reductions in depression and anxiety based on the observer-rated Hamilton Rating Scale for Depression (HRSD) and Hamilton Rating Scale for Anxiety (HRSA) (mean difference of M=-3.84 (SD= 0.14, p<0.01) and M=- 4.31 (SD= 0.32, p <0.001) respectively). When CM was added to the models, there no longer was a significant PREPP versus ETAU treatment effect on HRSD and HRSA outcomes in CM+ women though effects remained for CM- women. However, CM+ women who received PREPP vs ETAU reported a mean increase in infant daytime sleep of 189.
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