Classification of buckwheat honey produced in Kazakhstan according to their biochemical ingredients and bioactivities by chemometric approach.

Herein, nineteen buckwheat honey samples collected from 19 stations of different ecological zones of Kazakhstan were analysed for their pollen density, physicochemical properties, chemical composition, antioxidant, anticholinesterase, tyrosinase inhibitory, and urease inhibitory activities with chemometric approaches. Twelve phenolic compounds and fumaric acid were identified using HPLC-DAD, and mainly fumaric, p-hydroxybenzoic, p-coumaric, trans-2-hydroxy cinnamic acids, and chrysin were detected in all samples. The honey samples collected from the Northern zone exhibited best antioxidant activity in lipid peroxidation inhibitory (IC50:8.65 ± 0.50 mg/mL), DPPH• (IC50:17.07 ± 1.49 mg/mL), ABTS•+ (IC50:8.90 ± 0.65 mg/mL), CUPRAC (A0.50:7.51 ± 0.30 mg/mL) and metal chelating assay (IC50:10.39 ± 0.71 mg/mL). In contrast, South-eastern zone samples indicated better acetylcholinesterase (55.57 ± 0.83%), butyrylcholinesterase (49.59 ± 1.09%), tyrosinase (44.40 ± 1.21%), and moderate urease (24.57 ± 0.33%) inhibitory activities at 20 mg/mL. The chemometric classification of nineteen buckwheat honey was performed using PCA and HCA techniques. Both were supported by correlation analysis. Thirteen compounds contributed significantly to the clustering of buckwheat honey based on geographical origin.

In-depth characterization of particulate matter in a highly polluted urban environment at the foothills of Himalaya-Karakorum Region.

In recent years, the rising levels of atmospheric particulate matter (PM) have an impact on the earth's system, leading to undesirable consequences on various aspects like human health, visibility, and climate. The present work is carried out over an insufficiently studied but polluted urban area of Peshawar, which lies at the foothills of the famous Himalaya and Karakorum area, Northern Pakistan. The particulate matter with an aerodynamic diameter of less than 10 µm, i.e., PM10 are collected and analyzed for mineralogical, morphological, and chemical properties. Diverse techniques were used to examine the PM10 samples, for instance, Fourier transform infrared spectroscopy, x-ray diffraction, and scanning electron microscopy along with energy-dispersive x-ray spectroscopy, proton-induced x-ray emission, and an OC/EC carbon analyzer. The 24 h average PM10 mass concentration along with standard deviation was investigated to be 586.83 ± 217.70 µg/m3, which was around 13 times greater than the permissible limit of the world health organization (45 µg/m3) and 4 times the Pakistan national environmental quality standards for ambient PM10 (150 µg/m3). Minerals such as crystalline silicate, carbonate, asbestiform minerals, sulfate, and clay minerals were found using FTIR and XRD investigations. Microscopic examination revealed particles of various shapes, including angular, flaky, rod-like, crystalline, irregular, rounded, porous, chain, spherical, and agglomeration structures. This proved that the particles had geogenic, anthropogenic, and biological origins. The average value of organic carbon, elemental carbon, and total carbon is found to be 91.56 ± 43.17, 6.72 ± 1.99, and 102.41 ± 44.90 µg/m3, respectively. Water-soluble ions K+ and OC show a substantial association (R = 0.71). Prominent sources identified using Principle component analysis (PCA) are anthropogenic, crustal, industrial, and electronic combustion. This research paper identified the potential sources of PM10, which are vital for preparing an air quality management plan in the urban environment of Peshawar.

Is surgical indication in multiple myeloma a poor prognosis sign? SEER database analysis

Aim This study aims to investigate demographic data, survival rates, and the relationship of these rates with surgery in a large case series including multiple myeloma (MM) patients. Method MM cases were analyzed retrospectively using the latest version of the SEER database published in April 2020. This version covers January 1975 to December 2017. Patients were classified according to gender, age, and race/ethnicity. Tumors were classified according to their localization, grade, year of diagnosis, and follow-up results. Results There were 60,239 patients diagnosed with Plasma Cell Myeloma. While 670 patients (1.2%) were operated on, 43,976 patients (76.7%) did not indicate operation, and 12,670 patients (22.1%) could not be operated on despite the recommendation. The mean survival was 62 months in those without an indication for surgery, and 42 months in patients with an indication but could not be operated on, and the difference was significant (p = 0.001). The mean survival was 58 months in the operated patients, and 42 months in the patients who could not be operated on despite the indication, and the difference was significant (p = 0.001). There was no difference between those who did not indicate surgery and those who were operated on with an indication (p = 0.243). Conclusion In multiple myeloma, the best prognosis is in the group of patients who received medical treatments without any indication for operation, while an indication for operation indicates a worse prognosis. A worse prognosis should be expected in patients who do not accept the operation or who cannot be operated on compared to the operated patients (AU)

Is surgical indication in multiple myeloma a poor prognosis sign? SEER database analysis.

AIM: This study aims to investigate demographic data, survival rates, and the relationship of these rates with surgery in a large case series including multiple myeloma (MM) patients. METHOD: MM cases were analyzed retrospectively using the latest version of the SEER database published in April 2020. This version covers January 1975 to December 2017. Patients were classified according to gender, age, and race/ethnicity. Tumors were classified according to their localization, grade, year of diagnosis, and follow-up results. RESULTS: There were 60,239 patients diagnosed with Plasma Cell Myeloma. While 670 patients (1.2%) were operated on, 43,976 patients (76.7%) did not indicate operation, and 12,670 patients (22.1%) could not be operated on despite the recommendation. The mean survival was 62 months in those without an indication for surgery, and 42 months in patients with an indication but could not be operated on, and the difference was significant (p = 0.001). The mean survival was 58 months in the operated patients, and 42 months in the patients who could not be operated on despite the indication, and the difference was significant (p = 0.001). There was no difference between those who did not indicate surgery and those who were operated on with an indication (p = 0.243). CONCLUSION: In multiple myeloma, the best prognosis is in the group of patients who received medical treatments without any indication for operation, while an indication for operation indicates a worse prognosis. A worse prognosis should be expected in patients who do not accept the operation or who cannot be operated on compared to the operated patients.

Rumination, Basic Beliefs, and Posttraumatic Growth in Cancer Patients: A Moderated Mediation Model.

BACKGROUND: Cancer is a highly distressing and traumatic experience that can significantly impact individuals' psychological well-being. Whereas many cancer patients may experience negative psychological outcomes, such as posttraumatic stress symptoms, a subset of individuals also reports positive psychological changes known as posttraumatic growth. OBJECTIVE: To contribute to theory-driven development of these treatments by exploring the role of deliberate rumination in posttraumatic growth, along with the basic beliefs that might shape it. METHODS: A sample of cancer patients (n = 139) completed self-report measures assessing rumination, basic beliefs, and posttraumatic growth. Multiple linear regression analyses and moderated mediation models were conducted to analyze the data. RESULTS: Findings support the hypothesis that intrusive rumination, deliberate ruminating, and disruption in basic beliefs strongly predict posttraumatic growth in cancer survivors. The results of this simple mediation indicate that deliberate rumination has a full mediating role. The results show that at all levels of basic beliefs, there is a positive and statistically significant indirect effect of intrusive rumination on posttraumatic growth. CONCLUSIONS: These findings highlight the importance of addressing rumination and core beliefs in interventions aimed at promoting posttraumatic growth among cancer patients. Further research is needed to explore additional factors that may influence the relationship between rumination, basic beliefs, and posttraumatic growth. IMPLICATIONS FOR PRACTICE: Oncology nurses can assist individuals in recognizing and managing intrusive rumination, as well as advocating deliberate rumination as a constructive cognitive process for making sense of a traumatic event and fostering growth.

Appraising the characteristics of particulate matter from leather tanning micro-environments, their respirational risks, and dysfunctions amid exposed working cohorts.

Leather tanneries are known for chemical laden work environments and pulmonic complaints among workers. This study presents an analysis of tannery micro-environments emphasizing on size-based variation in composition of particulate matter and consequent respiratory dysfunctions. Qualitative (FTIR, SEM-EDX) and quantitative assessment (elemental composition, carbon forms) of PM10 and 2.5 has been employed. For lung function evaluation of workforce, spirometry with ATS proprieties was used. The peak concentrations of both PM10 and 2.5 have been found at PU, FU, and B&S. The LTCR for only Cr is high for both PM2.5 and PM10. HQ was high for Al, Cr, and Mn for both PM sizes. The maximum organic and secondary organic carbon in PM10 was found at FU and in PM2.5 at PU. The varied PM composition included carbohydrate (B&S, WMO), ether (S&S, P&S) and hydroxyl (B&S, S&S, P&S), proteins, polyenes, vinyl groups (S&S, P&S, FU), alcohols (PU and FU), and aldehyde present at PU. These results were armored by high organic and total carbon concentrations for the same sites. Therefore, PM are classified into biogenic (carbonaceous: microbial and animal remains) from PU and WMO, incidental (industrial, mixt physico-chemical character) from PU, FU, WMO, B&S and P&S, and geogenic (crustal mineral dust) from RHT, B&S, PU, and P&S. Furthermore, increase in metal concentrations in PM10 (Cr, Mn, Co, Ni, V, As, Be, Ba, and Cd) and PM2.5 (As, Pb) while TC, OC, and SOC in PM2.5 caused depreciation overall lung function. The exposure to biogenic and incidental PM nature are key cause of pulmonic dysfunction.

The effect of structured health promotion education given to adolescents on health literacy and health-promoting behaviors.

PURPOSE: This study was conducted to determine the effect of structured health promotion education given to adolescents on health literacy and health promotion level. DESIGN AND METHODS: The research was designed according to the pretest-posttest control group model and conducted using the quasi-experimental method. The population of the study consisted of students studying in the 6th, 7th, and 8th grades of a secondary school. A total of 191 students were assigned to the intervention group and the control group. The data were collected using the Sociodemographic Characteristics Form, the Adolescent Health Promotion Scale, and the School Age Health Literacy Scale. Structured Health Promotion Education consisting of six modules was given to the intervention group. The control group did not receive any intervention. RESULTS: Of the students, 33.9% were in the 8th grade, 76.6% were born in Turkey, 31.6% had a father and mother who were secondary school graduates, 72.5% were from moderate-income families, and 83% had no chronic health problems. The groups' health literacy and adolescent health-promoting behaviors pretest mean scores before the intervention were homogeneous (p > 0.05). There was a significant difference between the groups' health literacy and adolescent health-promoting behaviors posttest mean scores after the intervention (p < 0.05). CONCLUSIONS: While structured health promotion education was found to increase health literacy and health-promoting behaviors, nutrition, stress management, life satisfaction, and health responsibility behaviors in adolescents, it did not affect social support and exercise behaviors. IMPLICATIONS FOR PRACTICE: Nurses should provide training to increase students' health literacy and health-promoting behaviors.

Design, Synthesis, Pharmacological Activities, Structure-Activity Relationship, and In Silico Studies of Novel 5-Substituted-2-(morpholinoimino)-thiazolidin-4-ones.

This study is aimed to synthesize morpholine- and thiazolidine-based novel 5-(substituted)benzylidene)-2-(morpholinoimino)-3-phenylthiazolidin-4-ones (3-26) and characterized by molecular spectroscopy. The synthesized compounds were subjected to antioxidant activity with anticholinesterase, tyrosinase, and urease inhibition activities and evaluated the structure-activity relationship (SAR) of enzyme inhibition activities. Compound 11 was found to be the most active antioxidant. In anticholinesterase inhibition, compound 12 (IC50: 17.41 ± 0.22 µM) was the most active against AChE, while compounds 3-26 ( except 3, 8, and 17) showed notable activity against BChE. Compounds 17 (IC50: 3.22 ± 0.70 mM), 15 (IC50: 5.19 ± 0.03 mM), 24 (IC50: 7.21 ± 0.27 mM), 23 (IC50: 8.05 ± 0.11 mM), 14 (IC50: 8.10 ± 0.22 mM), 25 (IC50: 8.40 ± 0.64 mM), 26 (IC50: 8.76 ± 0.90 mM), and 22 (IC50: 9.13 ± 0.55 mM) produced higher tyrosinase inhibition activity. In urease inhibition activity, compounds 20 (IC50: 16.79 ± 0.19 µM), 19 (IC50: 18.25 ± 0.50 µM), 18 (IC50: 20.24 ± 0.77 µM), 26 (IC50: 21.51 ± 0.44 µM), 25 (IC50: 21.70 ± 0.06 µM), and 24 (IC50: 22.49 ± 0.11 µM) demonstrated excellent activities. Besides, the molecular docking study was applied to better understand the inhibitory mechanism between (1-26) compounds and enzymes at the molecular level. According to the results of this study, the synthesized compounds exhibited a better binding affinity toward these enzymes compared to the positive control. Further, molecular mechanics Poisson-Boltzmann surface area (MM/PBSA) binding free energy and molecular dynamics (MD) simulation analyses were performed for AChE with compound 26, which showed high inhibitory activity in silico and in vitro studies. In conclusion, novel morpholine and thiazolidine-based derivative compounds may be pharmacologically effective agents for AChE, BChE, tyrosinase, and urease enzymes.

Coronavirus-related health literacy levels among school administrators and influencing factors.

Our study aimed to determine the level of coronavirus-related health literacy among school administrators and the factors that influence this. The sample of this cross-sectional study consisted of 402 school administrators serving in primary, secondary and high schools in Ankara. The data were collected between September 2021 and February 2022 using the descriptive characteristics questionnaire and the Coronavirus-Related Health Literacy Questionnaire (HLS-COVID-Q22). It was seen that 64.4% of the participants were male, 34.6% were 40 years old or younger and 35.6% were working in primary schools; 77.6% of the participants had a sufficient, 16.2% had a problematic and 6.2% had an inadequate level of coronavirus-related health literacy. Age, gender, chronic disease status, type of school they work in, level of knowledge about coronavirus, level of confusion due to knowledge about coronavirus, willingness to be vaccinated, believing that vaccines are safe/effective/compatible with their religious beliefs were found to affect coronavirus-related health literacy (p < 0.05). Gender, age, information satisfaction on coronavirus, confusion due to information on coronavirus and 'Overall, I believe that vaccinations are effective' explained 24.9% of HLS-COVID-Q22 variance (Adjusted R2 = 0.249, F = 13.080, p < 0.001). This study found the coronavirus-related health literacy level among school administrators to be sufficient. It found that their level of health literacy was affected by gender, age, chronic disease status, type of school they worked at, level of knowledge about coronavirus, level of confusion due to information about coronavirus, desire to be vaccinated and their thoughts about vaccines.

The Effect of Laughter Therapy on Perceived Stress and Quality of Life in Persons with Schizophrenia: A Mixed Method Pilot Study.

This study was planned to examine the effects of laughter therapy on the perceived stress and quality of life level of persons with schizophrenia and their views on laughter therapy. This study is a mixed-methods pilot study conducted using a quasi-experimental design based on the pretest-posttest model. Of the participants 68% (n = 17) were male, 92% (n = 23) were single, 56% (14) were high school graduates, 60% (n = 15) were unemployed, 60% (n = 15) lived with their parents, 88% (22) had been receiving treatment for schizophrenia for more than 10 years. The difference between the pretest and post-test means was not found to be significant in participants' perceived stress (p > 0.05), and the difference between the pretest and post-test means of the Schizophrenia Quality of Life Scale's Interpersonal Relations, Instrumental Role, and Intrapsychicv (mental findings) subscales was found to be statistically significant (p < 0.05). The main themes of laughter therapy among persons with schizophrenia in the focus group interviews were found to be optimism, coping, health, sociability, motivation, awareness, and functionality. Laughter therapy was found to increase the quality of life of persons with schizophrenia, not affect perceived stress, and positively affect optimism, coping, health, sociability, motivation, awareness, and functionality levels. The researchers recommend using laughter therapy to improve the quality of life of people with schizophrenia during their rehabilitation.

Comprehensive chemical characterization of PM2.5 in the large East Mediterranean-Middle East city of Beirut, Lebanon.

The chemical composition of PM2.5 at two sites in Lebanon, a country in the East Mediterranean - Middle East region, is investigated in the spring and summer seasons. The average PM2.5 concentrations were of (29 ± 16) µg/m3 for Beirut urban site and (32 ± 14) µg/m3 for Beirut suburban site. This study showed that the geographic location of the East Mediterranean region, such as its proximity to the Mediterranean Sea and the dust storm intrusion are a significant contributor to the high PM levels from natural sources, which cannot be mitigated, rendering the PM2.5 WHO annual Air Quality guideline unattainable due to high natural background, which also applies to the entire Middle East region. Turkey and Eastern Europe are the dominant origin of air masses throughout our sampling days, suggesting the long-range transport as an important potential contributor to the high observed concentrations of V, Ni, and sulfate in this region most probably in other East Mediterranean countries than Lebanon too. Main local sources determined through the chemical speciation including organics are road transport, resuspension of dust and diesel private generators. A health risk assessment of airborne metals was performed and the carcinogenic risk for all the metals exceeded by 42 (adults) and 14 (children) times the acceptable risk level (10-6) at both sites. Vanadium was the predominant carcinogenic metal, emphasizing the need to replace energy production with cleaner energy on a regional level and highlighting the severe impact of air pollution on the health of inhabitants in this region's main cities.

Effect of Laughter Yoga on Sleep and Quality of Life in Individuals With Fecal Ostomies: A Randomized Controlled Trial.

PURPOSE: The aim of this study was to evaluate the effect of laughter yoga on the quality of life and sleep quality in individuals with fecal ostomies. DESIGN: This was randomized controlled trial. SUBJECTS AND SETTING: The sample comprised 55 individuals with an ostomy who received care at Ankara University's I˙bni Sina Hospital Stoma Therapy Unit in Ankara, Turkey. Data were collected over a 2-month period (January and February 2020). METHODS: Participants were allocated into an intervention group (n = 27) who received a yoga therapy intervention and a control group (n = 28) who received no intervention via simple randomization. Demographic and pertinent clinical variables were obtained during a baseline visit in both groups, along with the Pittsburgh Sleep Quality Index (PSQI) and Stoma-Quality of Life (Stoma-QOL) instruments. The intervention group received laughter yoga weekly over a period of 8 weeks. RESULTS: Mean scores on the PSQI and the Stoma-QOL at baseline were compared. Participants in the intervention had a significant decline in mean PSQI scores (6.85 vs 5.48, P = .044) indicating improvement in sleep quality following the intervention. Analysis revealed no significant difference in mean Stoma-QOL scores (P = .077). Control group participants had no significant difference in either mean PSQI or Stoma-QOL scores following data collection at the end of 8 weeks. CONCLUSIONS: Laughter yoga had a positive effect on the sleep quality in individuals with fecal ostomies. Further research is recommended to evaluate the effect of the number of laughter yoga sessions on the sleep quality and quality of life in individuals with ostomies.

The effect of psycho-education given to mothers of children with attention deficit hyperactivity disorder on mother-child interaction and family functionality.

PROBLEM: One of the most prevalent psychiatric conditions in children is attention deficit hyperactivity disorder (ADHD). Regular psycho-education for people with chronic illnesses and their families is beneficial for prevention, treatment, and rehabilitation. This study aimed to determine the effect of psycho-education given to mothers of children with ADHD on mother-child interaction and family functionality. METHODS: The sample of the study consisted of 98 mothers and children (50 participants for the intervention group and 48 participants for the control group). Mothers in the intervention group were given psycho-education. Pre and post-tests were completed by mothers. FINDINGS: Post-test mean scores in terms of warmth/affection, hostility/aggression, indifference/neglect, and control subscales of the Parental Acceptance-Red/Control Scale were statistically significantly lower among the intervention group. Post-test mean scores in terms of communication, showing interest, and the behavior control subscales of the family assessment device were statistically significantly lower in the intervention group. CONCLUSIONS: For families dealing with a child with ADHD, psychoeducation increased mother-child interaction and family functioning Therefore, psychoeducation should be widespread in the treatment of ADHD. When ADHD causes problems with mother-child contact, maternal psychoeducation may be helpful.

Experiences of Patients With Type 2 Diabetes Who Recovered From COVID-19 in the Pandemic Period: A Qualitative Study.

Coronavirus disease 2019 (COVID-19) infection can induce acute and chronic complications by affecting the self-management behaviors of individuals with diabetes. The objective of this study is to examine the physical, psychosocial health, and self-management experiences of type 2 diabetes patients who have recovered from COVID-19, 1 year after the infection. The study adopted a qualitative research design, specifically content analysis. In all, 14 patients with type 2 diabetes who presented to the diabetes outpatient clinic were interviewed by teleconferencing, which lasted approximately 25 to 30 minutes. The Standards for Reporting Qualitative Research guidelines were used. Based on the participants' responses, four main themes were determined: obstacles in activities of daily living, feeling of psychosocial problems, changes in health and treatment management, and patient self-management practices. Amid the pandemic, diabetes nurses should strive to recognize the issues that diabetes patients encounter. To assist patients, telemedicine should be leveraged, and evidence-based practices must be developed.

Frequency and distribution of BRCA1/BRCA2 large genomic rearrangements in Turkish population with breast cancer.

Germline mutations in BRCA1 and BRCA2 genes are mainly responsible for breast and/or ovarian cancer patients. Most of the mutations in these genes are single nucleotide changes or deletions/insertions of small numbers of bases, while a minority of mutations in these genes are large genomic rearrangements (LGRs). The frequency of LGRs in the Turkish population is not clearly known. Also insufficient awareness of the importance of LGRs in breast and/or ovarian cancer development can lead to some disruptions in patient management. So, we aimed to determine the frequency and distribution of the LGRs in the BRCA1/2 genes in the Turkish population. We investigated rearrangements of BRCA genes using multiplex ligation-dependent probe amplification (MLPA) analysis in 1540 patients with a personal and/or family history of breast and/or ovarian cancer or who had familial known large deletion/duplication and applied for segregation. The estimated overall frequency of LGRs in our group was 3,4% (52/1540) with 91% in BRCA1 gene and 9% in BRCA2 gene. 13 different rearrangements were detected (10 BRCA1, 3 BRCA2). To the best our knowledge, BRCA1 exon 1-16 duplication and BRCA2 exon 6 deletion have not been previously reported before. Our study results supported that the detection of rearrangements in BRCA genes is of great importance and it should be planned routinely in patients whose mutations cannot be detected by sequence analysis in screening programs.

Spiritual Well-being, Diabetes Burden, Self-management, and Glycemic Control Among Patients with Type 2 Diabetes in Turkey: A Descriptive and Correlational Study.

Spiritual well-being is considered a significant factor in helping to manage chronic diseases and cope with the disease process. This descriptive-correlational study aimed to investigate the relationship between spiritual well-being, diabetes burden, self-management, and among 300 outpatients with type 2 diabetes in Turkey. A significant relationship was found between the diabetes burden and self-management levels and the spiritual well-being of patients with diabetes (p < 0.005). Multiple linear regression analyses found that a high diabetes burden (ß = -0.106) decreased well-being, and high self-management increased well-being (ß = 0.415). Additionally, the results revealed that marital status, household members, performing daily life activities alone, hospitalization due to complications, diabetes burden, self-management, glycemic control, and blood lipid parameters explained 29% of the total variance in the spiritual well-being level. Accordingly, the present study recommended that health professionals should consider spiritual well-being to support disease management with a holistic approach to diabetes patients.

The effect of laughter yoga on loneliness, psychological resilience, and quality of life in older adults: A pilot randomized controlled trial.

This study aims to examine how laughter yoga affects the loneliness, psychological resilience, and quality of life of older adults living in a nursing home. The sample of this intervention study, made using a control group with a pretest/posttest design, consists of 65 older adults living in Turkey. The data were collected in September 2022 using the Personal Information Form, the Loneliness Scale for the Elderly, the Brief Psychological Resilience Scale, and the Quality of Life Scale for the Elderly. The intervention group (n=32) took part in laughter yoga twice a week for four weeks. No intervention was made with the control group (n=33). A statistically significant difference was found between the groups' mean post-test scores for loneliness, psychological resilience, and quality of life (p < 0.05) after the laughter yoga sessions. The eight-session laughter yoga program was found to reduce loneliness and increase resilience and quality of life in older adults.

Anatoluin A and B isolated from medicinal Tricholoma anatolicum are new cytotoxic ergostanoids against the most common cancers.

Tricholoma anatolicum is an edible mushroom from the matsutake group growing under Cedar trees. Bioactivity-guided fractionation of Tricholoma anatolicum afforded two new (1 and 2), three known ergosterols (3-6), and four known (6-9) compounds. Structures were identified as anatoluin A (1), anatoluin B (2), 5α,6α-epoxy-ergosta-7,22-dien,3ß-ol (3), ergosterol-endoperoxide (4), ergosterol,3ß-ol (5), 3,5-dihydroxyfuran-2(5H)-one (6), mannitol (7), turanose (8), fumaric acid (9) using spectroscopic techniques. The cytotoxic activity of extract and isolated compounds was performed using MTT assay against MCF7, HT29, H1299, and HeLa cancerous cell lines while toxicity against PDF and L929 fibroblast healthy cell lines. The lipid peroxidation inhibitory and ABTS•+ scavenging activities were used to determine antioxidant activity. The polar extracts exhibited significant cytotoxic activity. The more perfect is that the extracts and isolated compounds (1-5) were inactive against PDF and L929 healthy cell lines. Compounds 1-3 and 4 exhibited noticeable cytotoxic activity, while 1-5 moderately inhibited lipid peroxidation.

Science Fiction as an Instructional Strategy: Foundations, Procedures, and Results for Pre-service Teachers.

Science fiction (SF) combines realistic and imaginary elements of science and technology and develops students' imagination, creativity, and interest in science. Therefore, the aim of this study is to examine SF stories written by pre-service science teachers (PSTs) in terms of various textual and science variables. The case study of SF story writing aimed to develop a theoretical framework to analyze how narrative elements, plot structure, agency, the nature of science content, characteristics of the SF genre, and ethics in scientific research are included in the stories of a group of Turkish PSTs. The participants of the study were 58 pre-service teachers enrolled in the science education department at a public university in Turkey. Working in groups, they wrote 13 different SF stories. The stories were analyzed with a rubric including two parts: narrative and other story elements and the characteristics of the SF genre. The results showed that the stories included fictional and realistic features of science and technology, scientific concepts, and details about scientific realities. The stories addressed the social and cultural embeddedness of scientific knowledge and details about the scientific method. However, the originality is limited in many stories as they had traces from popular movies, books, and TV series. The stories did consider a range of ethical issues, including unauthorized experimentation and manipulating scientific information for personal, political, and financial interests. The current study could contribute to the literature about the use and assessment of SF stories in science education. Supplementary Information: The online version contains supplementary material available at 10.1007/s10763-021-10244-4.

The effect of online laughter therapy on depression, anxiety, stress, and loneliness among nursing students during the Covid-19 pandemic.

BACKGROUND: Nursing students experienced mental symptoms when they switched to distance education due to the pandemic. AIMS: This study was conducted to evaluate the effects of online laughter therapy sessions on depression, anxiety, stress, and loneliness levels in first-year nursing students. METHODS: In this randomized controlled trial, 61 healthy nursing students were randomly assigned to intervention (n = 32) and control groups (n = 29). The intervention group received online laughter therapy twice weekly for four weeks. The control group received no intervention. The data were collected using a demographic questionnaire, the Depression Anxiety Stress Scale, and the De Jong Gierveld Loneliness Scale at the study initiation and week four in both groups. RESULTS: There was no difference between the mean scores of the groups in the pre-test (p > 0.05). There was a statistically significant difference between groups in terms of depression after online laughter therapy sessions (p < 0.05), but there was no significant difference between anxiety, stress, and loneliness levels (p > 0.05). CONCLUSIONS: Online laughter therapy sessions significantly reduced depression but had no effect on anxiety, stress, and loneliness. During the COVID-19 pandemic, online laughter therapy can be organized to reduce depression levels.