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Spaceflight missions must limit biological contamination on both the outbound and return legs to comply with planetary protection requirements. Depending on the mission profile, contamination concerns may include the potential presence of bioactive molecules as defined by NASA’s Planetary Protection policies. Thus, the present study has examined the temperature and time requirements for sufficient inactivation/degradation of an infectious, heat-stable prion protein (Sup35NM), which serves as a model bioactive molecule. Bovine serum albumin was used to establish the method parameters and feasibility. Differential scanning calorimetry, Fourier transform infrared spectroscopy, analytical reversed-phase high-performance liquid chromatography, and mass spectrometry were utilized to analyze heat-treated samples, with non-treated samples serving as controls. Heat treatment at 400°C for 5 seconds was found to result in substantial decomposition of Sup35NM. In addition to the disruption of the protein backbone amide bonds, the side chain residues were also compromised. Fragments of molecular weight <4600 were observed by mass spectrometry but the impact of treatment on both the backbone and side chains of Sup35NM suggested that these fragments would not self-associate to create potentially pathogenic entities. The present methodology provided insight into the protein degradation process and can be applied to a variety of treatment strategies (e.g., any form of sterilization or inactivation) to ensure a lack of protein-based contamination of isolated extraterrestrial specimens.
This paper investigates public attitudes towards education spending based on a survey experiment. It enquires whether a trade-off between education and other welfare domains, namely healthcare, unemployment benefits and pensions, diminishes support for higher public spending on education. Drawing on five Organisation for Economic Co-operation and Development (OECD) countries (Italy, Spain, Greece, Mexico and Turkey), the paper demonstrates that education spending preferences are contingent on the nature of trade-offs and the priorities of the stakeholder groups. Testing the predictive power of age, income, ideology, labour market positioning and gender, our research finds robust support for public spending on education across all countries. Nonetheless, this support diminishes significantly when trade-offs that are linked to cuts in other welfare domains are introduced.
Despite growing interest in the political consequences of the urban–rural divide, we know little about whether urban and rural populations differ in the policy problems they view as most important. This study explores urban–rural differences in policy priorities over an extended period (1939–2020), using data from 850 U.S. surveys. The analysis reveals modest but persistent gaps between urban and rural residents in several key policy areas. However, while urban–rural differences remain stable across diverse economic and political contexts, partisan affiliation significantly outweighs place-based identities in shaping these priorities. The findings suggest that despite geographic distinctions, urban and rural populations predominantly rely on partisan cues when forming policy agendas, which contributes to a nuanced understanding of political representation.
This study evaluates the effectiveness of long-term, low-dose antibiotic treatment (macrolides and doxycycline) combined with intra-nasal corticosteroids in patients with chronic rhinosinusitis with nasal polyps.
Methods
A total of 72 patients diagnosed with chronic rhinosinusitis with nasal polyps, aged 18–65, were followed for at least six months. Patients were randomized into three treatment groups: group 1 (intra-nasal corticosteroids and nasal saline irrigation), group 2 (intra-nasal corticosteroids, saline irrigation and macrolides) and group 3 (intra-nasal corticosteroids, saline irrigation and doxycycline).
Results
Of the 72 patients, 43 (59.7 per cent) were male, and 29 (40.3 per cent) were female, with an average age of 48.69 plus or minus 15.71 years. A significant reduction in polyp stages was observed bilaterally and unilaterally in group 3 (p < 0.05). Lund–Mackay Score showed significant improvement in group 2 and group 3.
Conclusion
Adding doxycycline to intra-nasal corticosteroids therapy led to significant reductions in polyp stages and Lund–Mackay Score, suggesting potential clinical and radiological benefits.
This chapter explores the right to freedom of thought in Türkiye, focusing on its legal foundations and historical context from the early twentieth-century’s Kemalist reforms to the present day. It examines how Türkiye’s transition from the Ottoman Empire to a modern Republic has shaped its legal protections and political responses to dissent, religion, and political plurality. Highlighting the ongoing tension between constitutional secularism and the rise of Islamist-influenced politics, the chapter reveals how these dynamics continue to shape and restrict freedoms of thought and expression in modern Türkiye. Despite early constitutional recognition of freedom of thought, practical implementation has often been constrained by state control over media, legal and judicial nuances, and societal norms. The chapter concludes by emphasizing the need for stronger legal safeguards and democratic principles to genuinely protect the right to freedom of thought in Türkiye.
In health care systems based upon the principles of managed competition, health insurers are expected to act as prudent buyers of care. Consumers are expected to switch between insurers based upon the performance of insurers in this role. Yet, the Dutch experience shows that trust of consumers in health insurers is low and that switching consumers focus primarily on price. The question arises if consumers do in fact perceive and trust insurers as prudent buyers of care. We addressed this question by using a mixed-method approach. The results show that most people know that insurers buy health care and feel that the purchasing tasks suit their role. They even have reasonable, though fragile, trust in the purchasing competencies of the insurer. However, the results also revealed that consumers have insufficient information to cast a judgement about insurers as purchasers and incorrectly think that insurers are commercial organisations. Hence, improving the public information about insurers and their purchasing role seems to be crucial. Given the inherent complexity in the system, it remains to be seen if this objective can be reached in the (near) future. For that reason, policymakers should also consider additional measures to encourage that insurers will take integral purchasing responsibility.
Disasters pose unique challenges, triggering significant psychological and social crises with both short- and long-term impacts. In this article, we address the critical role of professional psychiatric associations (PPAs) in responding to large-scale disasters, emphasizing the operational model connected with the Psychiatric Association of Türkiye’s (PAT) response to the 2023 earthquakes in Türkiye and Northern Syria. We propose the SOLIDARITE model, a structured response framework, which incorporates sustained preparedness, organized networks, resource libraries, on-site and remote interventions, and comprehensive disaster planning across early, middle, and long-term phases. The model emphasizes a multidimensional approach integrating pre-disaster preparedness through training, various psychosocial support options, the establishment of networks, and the formulation of a master disaster response plan. The implementation of this model by PAT during the 2023 earthquakes facilitated an effective and prompt response, underlining the importance of PPAs’ role in disaster preparedness and action. The SOLIDARITE model supports the need for deeper integration of disaster psychiatry into psychiatric training and calls for national and international collaboration to enhance the preparedness and response capacity of PPAs.
The most common cause of morbidity and mortality in type 1 diabetes mellitus is cardiovascular system involvement. Sudden death has been reported in type 1 diabetes mellitus patients. To analyse the use of the cardiac electrophysiological balance index in predicting ventricular arrhythmias in children with type 1 diabetes mellitus disease.
Methods:
One hundred type 1 diabetes mellitus paediatric patients and 100 healthy children, divided into three groups according to their haemoglobin A1C levels, were included in the study. All participants were evaluated with transthoracic echocardiography, 12-lead electrocardiography, and 24-h Holter after a detailed physical examination. Systolic and diastolic function parameters, electrocardiography intervals, and heart rate variability parameters were evaluated.
Results:
The mean age in the type 1 diabetes mellitus and control groups was 11.52 (± 3.52) and 11.78 (± 3.45) years, respectively. In total, 57% of the type 1 diabetes mellitus group and 56% of the control group were male. The mean haemoglobin A1C value was 9.14% (± 1.79) and the disease duration was 3.71 years (± 3.13). The type 1 diabetes mellitus group had a higher QTc duration, deceleration time duration, A velocity, and a lower E/A ratio than the control group. In the type 1 diabetes mellitus group, Tpe, Tpe/QT ratio, QTc/QRS ratio, Tpe/QRS ratio, Tpe/(QT × QRS) ratio values were significantly higher than in the control group.
Conclusion:
Children with type 1 diabetes mellitus are at risk for atrial and ventricular arrhythmias without valvular disease, ischemic heart disease, or diastolic dysfunction despite normal systolic function. No correlation was found between disease duration, metabolic control, autonomic function parameters, and arrhythmia risk; however, it was associated with diastolic function parameters.
Understanding healthcare personnel’s (HCP) contact patterns are important to mitigate healthcare-associated infectious disease transmission. Little is known about how HCP contact patterns change over time or during outbreaks such as the COVID-19 pandemic.
Methods:
This study in a large United States healthcare system examined the social contact patterns of HCP via standardized social contact diaries. HCP were enrolled from October 2020 to June 2022. Participants completed monthly surveys of social contacts during a representative working day. In June 2022, participants completed a 2-day individual-level contact diary. Regression models estimated the association between contact rates and job type. We generated age-stratified contact matrices.
Results:
Three-hundred and sixty HCP enrolled, 157 completed one or more monthly contact diaries and 88 completed the intensive 2-day diary. In the monthly contact diaries, the median daily contacts were 15 (interquartile range (IQR) 8–20), this increased slightly during the study (slope-estimate 0.004, p-value 0.016). For individual-level contact diaries, 88 HCP reported 2,550 contacts over 2 days. HCP were 2.8 times more likely to contact other HCP (n = 1,592 contacts) than patients (n = 570 contacts). Rehabilitation/transport staff, diagnostic imaging technologists, doctors, nurses, mid-level, and laboratory personnel had higher contacts compared with the lowest contact group (Nursing aids). Contact matrices concentrated in working-age populations.
Conclusions:
HCP contacts concentrate in their work environment, primarily with other HCP. Their contacts remained stable over time even during large changes to societal contact patterns during the COVID-19 pandemic. This stability is critical for designing outbreak and pandemic responses.
The knowledge of students’ quality of life and post-traumatic stress disorder levels, investigation of the relationship between them, and taking measures are essential in terms of guiding the necessary interventions. This study was conducted to determine the quality of life and post-traumatic stress disorder levels of midwifery students experiencing an earthquake.
Methods
This descriptive and correlational study was conducted with 363 midwifery students who had experienced the Kahramanmaras, Türkiye earthquake. Data were obtained using a Descriptive Information Form, the PTSD-Brief Scale, and the World Health Organization Quality of Life Scale (WHOQOL-BREF).
Results
The rate of post-traumatic stress disorder in the sample studied (n = 363), which consisted of midwifery students who would work in the field of health, was 21.5% 2 months after the earthquake. The multiple linear regression analysis indicated that factors predicting post-traumatic stress disorder following the earthquake were quality of life score related to physical and environmental domains, damage status of the house, presence of family history of depression, and smoking status.
Conclusions
This study, which was conducted 2 months following the earthquakes, showed that living spaces had an impact on the occurrence of post-traumatic stress disorder symptoms.
Psychedelic drugs are a focus of interest in the treatment of depression and other disorders but there are longstanding concerns about possible adverse psychiatric consequences. Because the relevant literature is largely informal, the seriousness of these risks is difficult to evaluate.
Methods
Searches were made for case reports of schizophrenia-spectrum, affective or other psychiatric disorders after use of psychedelic drugs. Case reports of flashbacks were also searched for. Individuals with recent use of other drugs (apart from cannabis and alcohol) and/or a previous history of major psychiatric disorder were excluded. Symptoms were tabulated using the Syndrome Check List of the Present State Examination (PSE-9).
Results
We found 17 case reports of schizophrenia spectrum disorder, 17 of affective disorder (depression, mania, or both), 3 cases of anxiety, 1 of depersonalization, and 1 of unclassifiable illness. The states could develop after a single use of the drug (5/17 schizophrenia; 6/17 affective disorder), and duration was highly variable. Recovery was the rule in cases of affective disorder but not in schizophrenia spectrum disorder. Twelve of 29 cases of flashbacks showed psychiatric symptomatology definitely outlasting the attacks, mainly anxiety (5 cases) and depression (8 cases). Flashback symptoms resolved within twelve months in approximately half of the cases but in a few persisted for years.
Conclusions
Reliable descriptions of schizophrenia spectrum disorder and major affective disorder after psychedelic drug use disorder exist but are relatively uncommon. Flashbacks are sometimes but not always associated with psychiatric symptomatology, mainly anxiety or depression.
Polycystic ovary syndrome (PCOS) is a complex reproductive and endocrine disorder affecting 5–10% of women of reproductive age, but the pathophysiology of PCOS still remains unknown. Here, the aim of our study was to analyze the effects of rapamycin treatment that may regulate impaired hormonal levels and folliculogenesis in dehydroepiandrosterone (DHEA)-treated PCOS mouse. We hypothesized that rapamycin may ameliorate the negative effects of PCOS in DHEA-induced PCOS mouse model. The target of rapamycin (TOR) gene product is a serine/threonine kinase that has been implicated in the control of cell growth, proliferation and autophagy, and rapamycin is a potent inhibitor of mTORC1 pathway. In this study, for the first time, mTORC1 and activation products are presented at protein and mRNA levels after rapamycin treatment in DHEA-induced PCOS mouse ovary. We showed that rapamycin treatment may regulate follicular development, hormonal levels and provide ovulation in DHEA-induced PCOS mouse. Additionally, we assessed decreased primordial follicle reserve, increased number of primary and secondary follicles, corpus luteum structure forms again after 10 days of rapamycin treatment. This study presented here suggests rapamycin treatment regulates hormonal phenotype and folliculogenesis in the ovary and also mTOR signalling pathway in granulosa cells of DHEA-induced PCOS mouse ovary which may have potential to attenuate understanding the mechanism of dominant follicle selection and anovulatory infertility.
This study aimed is to analyse the quality of stapedotomy videos as an educational tool and to test the feasibility of the IVORY grading system (IVORY-GS) in an otological procedure.
Methods
YouTube was searched using the terms “stapedectomy”, “stapedotomy” and “otosclerosis surgery.” Video length, upload date, view count and likes were evaluated. The included videos were scored according to the IVORY-GS.
Results
Sixty-seven videos were evaluated. The mean IVORY-GS total score was 21.8. Video scores were higher in the ethics part. Case presentation items got the lowest scores in total. The total score showed a significantly positive correlation with like counts. No significant correlation was found between the total score and view count and video age.
Conclusion
The educational quality of most of the stapedotomy videos on YouTube is insufficient. The IVORY-GS is a comprehensive guideline in the otorhinolaryngology field. However, it may require some modifications based on the type of surgery.
This study aims to assess the correlation between NAA (N-acetyl-l-aspartate), CHO (choline), and CRE (creatine) levels in the hippocampus regions of individuals suffering from obsessive-compulsive disorder (OCD) and defensive styles of the ego.
The study group was composed of twenty patients with OCD and twenty healthy controls. NAA, CHO, and CRE values in the hippocampal region using proton magnetic resonance spectroscopy (1H-MRS) were measured. Participants’ defense styles were ascertained by administering the Defense Style Questionnaire-40.
The patient group’s NAA levels were considerably lower than the control group’s on both sides of the hippocampus. The levels of CHO and CRE did not significantly differ between the two groups. The following statistically significant correlations were discovered: in the comparison group, there were negative correlations between the scores of mature defense styles and the right and left CHO levels, as well as between the immature defense mechanism scores and the right NAA levels in both the patient and control groups. In the patient group, there were also negative correlations between the left NAA values and the scores of mature defense styles.
OCD patients have lower levels of NAA in the hippocampus. To validate and extend the current findings, more research involving a greater sample size is required.
Weather conditions such as low air temperatures, low barometric pressure, and low wind speed have been linked to more cases of carbon monoxide (CO) poisoning. However, limited literature exists regarding the impact of air pollution. This study aims to investigate the relationship between outdoor air pollution and CO poisoning in 2 distinct cities in Turkey.
Methods
A prospective study was conducted at 2 tertiary hospitals, recording demographic data, presenting complaints, vital signs, blood gas and laboratory parameters, carboxyhemoglobin (COHb) levels, meteorological parameters, and pollutant parameters. Complications and outcomes were also documented.
Results
The study included 83 patients (Group 1 = 44, Group 2 = 39). The air quality index (AQI) in Group 2 (61.7 ± 27.7) (moderate AQI) was statistically significantly higher (dirtier AQI) than that in Group 1 (47.3 ± 26.4) (good AQI) (P = 0.018). The AQI was identified as an independent predictor for forecasting the need for hospitalization (OR = 1.192, 95% CI: 1.036 - 1.372, P = 0.014) and predicting the risk of developing cardiac complications (OR: 1.060, 95% CI: 1.017 - 1.104, P = 0.005).
Conclusions
The AQI, derived from the calculation of 6 primary air pollutants, can effectively predict the likelihood of hospitalization and cardiac involvement in patients presenting to the emergency department with CO poisoning.
It is known established that the cardiac effects of COVID-19 infection are associated with poor prognosis and high mortality rates in infected patients. The aim of this study was to evaluate the cardiac effects of COVID-19 infection in paediatric patients and identify the correlations between clinical and laboratory data and the degree of cardiac involvement.
Materials and Methods:
A retrospective data analysis was conducted on 64 paediatric patients at Gazi University Department of Pediatrics who were treated as inpatients with a diagnosis of COVID-19. Patients were classified as “COVID-19-related cardiac involvement cases” if their electrocardiogram and echocardiogram results indicated a pathology and/or if their laboratory data indicated increased cardiac enzymes. All patients were divided into subgroups based on whether they had cardiac involvement and whether they were diagnosed with multisystem inflammatory syndrome in children.
Results:
In comparison to patients who did not have cardiac involvement, those with cardiac involvement had significantly higher levels of hs-Troponin T, Pro-BNP, and D-dimer. Patients with multisystem inflammatory syndrome in children had significantly longer PR intervals than those without multisystem inflammatory syndrome in children (p = 0.0001). Patients with multisystem inflammatory syndrome in children had a significantly higher rate of pathological valve insufficiencies (68.1%) than those without multisystem inflammatory syndrome in children (14.2%) (p = 0.001).
Conclusion:
In our study, the strongest predictive biomarker of cardiac involvement in paediatric patients with COVID-19 infection was determined to be hs-Troponin T. It was observed that pathologic electrocardiogram changes could reflect cardiac involvement in the absence of any other signs. Patients with multisystem inflammatory syndrome in children exhibited significantly greater rates of pathologic echocardiogram findings and myocardial dysfunction than those without multisystem inflammatory syndrome in children. In all patients, pathologic electrocardiogram and echocardiogram findings were found to be strongly associated with the severity of inflammation.
Surgical treatments for people living with epilepsy have the potential to provide patients with an opportunity to achieve relief from seizures, thus improving their quality of life, but they are not free of complications. The psychiatric consequences are a significant concern because of the potential risks; however, psychotic illnesses have not received adequate research compared to anxiety and depression.
Objectives
To better identify the psychiatric side effects that can develop following epilepsy surgery, especially psychosis, and to take preventive measures to mitigate its occurrence.
Methods
Presentation of a patient’s case and reviewing existing literature regarding de novo psychosis following epileptic surgery.
Results
The case of interest is a 31-year-old male patient who, or his relatives, has had no history of psychiatric disorders. From age 21, the patient had focal to bilateral seizures, which were preceded by olfactory auras and could occur up to 4-5 times a week and was then diagnosed with epilepsy. In June 2021, the patient underwent a right anterior temporal lobectomy for his medically resistant seizures after a presurgical evaluation and had a notable decrease in the number of seizures, occurring only during periods of sleep every six months. In the fourth month following the operation, the patient began experiencing auditory hallucinations characterized by negative and judgmental voices. After that, he engaged in an aggressive act by holding a knife and assaulting another person in a public area. He was admitted to an inpatient psychiatry service for 12 days with a diagnosis of a psychotic episode. His symptoms significantly improved, and he was discharged with paliperidone 6 mg/daily treatment. After five months, he discontinued the medication, subsequently experiencing a recurrence of auditory hallucinations and aggression. The patient was admitted to the inpatient psychiatric clinic in June 2022 as a result of experiencing paranoid delusions and engaging in a suicide attempt by self-inflicted wrist laceration using a razor blade, which was consistent with the patient’s delusional beliefs. Following 13 days of hospitalization, he was discharged with amisulpride 800 mg/daily in addition to his antiepileptic treatment. After 15 months of discharge, he showed no signs of active psychotic features, and his functioning was moderate to good.
Conclusions
Current research and reporting of psychiatric outcomes are limited, and the predictive factors and prognosis of psychiatric symptoms in these patients remain obscure. Long-term follow-up is crucial, especially considering the possibility of psychiatric symptoms developing in the months following surgery, as demonstrated by the current case. In addition, preoperative and postoperative assessments may facilitate the management of psychiatric symptoms.
Early consideration of failure modes in the feature development process is essential to identify and trace risks across the physical and embedded AI components of intelligent systems, to enhance the robustness of the feature delivery as well as trust in the AI. This paper introduces an extension of the AIAG/VDA function failure modes taxonomy, to facilitate the integrated analysis of complex intelligent systems with embedded AI. A case study of an autonomous driving feature is discussed as validation of the proposed taxonomy.
This study aimed to determine which machine learning model is most suitable for predicting noise-induced hearing loss and the effect of tinnitus on the models’ accuracy.
Methods
Two hundred workers employed in a metal industry were selected for this study and tested using pure tone audiometry. Their occupational exposure histories were collected, analysed and used to create a dataset. Eighty per cent of the data collected was used to train six machine learning models and the remaining 20 per cent was used to test the models.
Results
Eight workers (40.5 per cent) had bilaterally normal hearing and 119 (59.5 per cent) had hearing loss. Tinnitus was the second most important indicator after age for noise-induced hearing loss. The support vector machine was the best-performing algorithm, with 90 per cent accuracy, 91 per cent F1 score, 95 per cent precision and 88 per cent recall.
Conclusion
The use of tinnitus as a risk factor in the support vector machine model may increase the success of occupational health and safety programmes.
Adherence to palivizumab prophylaxis programmes is crucial to protect infants with CHD against respiratory syncytial virus infections. We analysed the effectiveness of two nudge interventions in increasing adherence.
Methods:
Our study included 229 infants, and their caregivers, from five centers in Turkey in the 2020–2021 respiratory syncytial virus season. We randomly allocated caregivers to a control and two intervention groups. Caregivers in all groups were informed about the prophylaxis programme and provided a schedule. Additionally, caregivers in Intervention 1 were called two days before appointments (default bias) and were asked to plan the appointment day (implementation intention), whereas caregivers in Intervention 2 received biweekly text messages informing them about the programme’s benefits (availability bias) and current adherence rate (social norm).
Results:
Caregivers in Intervention 1 had a significantly higher adherence rate than Control (97.3% versus 90.9%) (p = 0.014). Both interventions had a significant effect on participants in their first prophylaxis season (p = 0.031, p = 0.037). Families where the father was employed had a 14.2% higher adherence rate (p = 0.001). Every additional child was associated with a 2.2% decrease in adherence rate (p = 0.02). In control, ICU admission history was associated with an 18.8% lower adherence rate (p = 0.0001), but this association disappeared in intervention groups.
Conclusion:
This is the first prospective interventional study which, in the context of palivizumab prophylaxis, analyses the effectiveness of nudge interventions based on established cognitive biases by comparing randomly generated intervention and control groups. We found that default bias and implementation intention have significant effects on adherence.