scholarly journals The dynamic core microbiome: Structure, dynamics and stability

2017 ◽  
Author(s):  
Johannes R. Björk ◽  
Robert B. O’Hara ◽  
Marta Ribes ◽  
Rafel Coma ◽  
José M. Montoya

AbstractThe long-term stability of microbiomes is crucial as the persistent occurrence of beneficial microbes and their associated functions ensure host health and well-being. Microbiomes are highly diverse and dynamic, making them challenging to understand. Because many natural systems work as temporal networks, we present an approach that allows identifying meaningful ecological patterns within complex microbiomes: the dynamic core microbiome. On the basis of six marine sponge species sampled monthly over three years, we study the structure, dynamics and stability of their microbiomes. What emerge for each microbiome is a negative relationship between temporal variability and mean abundance. The notion of the dynamic core microbiome allowed us to determine a relevant functional attribute of the microbiome: temporal stability is not determined by the diversity of a host’s microbial assemblages, but rather by the density of those microbes that conform its core microbiome. The core microbial interaction network consisted of complementary members interacting weakly with dominance of comensal and amensal interactions that suggests self-regulation as a key determinant of the temporal stability of the microbiome. These interactions have likely coevolved to maintain host functionality and fitness over ecological, and even evolutionary time scales.

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Bahareh Honari ◽  
Seyed Mehran Homam ◽  
Maryam Nabipour ◽  
Zahra Mostafavian ◽  
Arezou Farajpour ◽  
...  

Abstract Background Epilepsy is one of the most common neurological disorders with physical, emotional, and social consequences. Previous studies indicate that epilepsy symptoms can highly affect the epileptic patients’ satisfaction in life. The aim of the present study is to investigate the QOL of People with Epilepsy (PWE) in Khorasan Razavi province, Iran. Methods In this study, 100 patients were randomly selected. After confirmation of the diagnosis of epilepsy by neurologists and fulfilling the entrance criteria, patients completed the Quality of Life in Epilepsy-31 inventory (QOLIE-31) questionnaire. Finally, data was analyzed statistically by SPSS software. Results The study sample comprised 100 PWE, aged 18–74 years (34 ± 13), of whom 58 (58%) were females. Tonic-colonic seizure was the most common (60%) type of seizure. The obtained score of each subscale and the range of the QOLIE-31 total score was 16.40–79.18 with the mean of 50 (SD = 16). The energy-fatigue subscale score was significantly higher in patients younger than 35 (p = 0.018). The data analysis showed that the seizure worry subscale was significantly higher in single patients (p = 0.04). Duration of epilepsy had a positive correlation with QOLIE-31 total score (p = 0.038), and a negative relationship with energy-fatigue subscale (p = 0.018). In contrast with previous studies, which reported the frequency of the epileptic episodes as the most important predictor of QOL, our results showed no significant correlation between the number of the episodes and overall QOL score (p = 0.063). However, the number of episodes was significantly correlated with emotional well-being and cognition subscales. Furthermore, the results indicated that poor QOL score is correlated with depressed mood. Conclusion In fact, the ultimate and preferred outcome of all treatments and care interventions is the patient’s QOL. Thus, improvement of the QOL by means of obtaining more information about its contributing factors, in PWE should be one of the main goals in the patients’ treatment.


2021 ◽  
pp. 215686932110085
Author(s):  
Laura Upenieks

Beliefs about the probability of educational success tend to be very optimistic in the United States. However, scholars are beginning to uncover mental health consequences associated with quixotic hope—the unrealistic outstripping of expectation by aspiration. Using longitudinal data from Waves 1 and 3 of the National Study of Youth and Religion, this study asks, (1) does religiosity promote or diminish the likelihood of quixotic hope? and (2) does religious attendance and closeness to God mitigate long-term mental health consequences of quixotic hope? Results show that weekly religious attendance had a modest negative relationship with the likelihood of experiencing quixotic hope, while increasing religious attendance over time attenuated the negative mental health consequences of quixotic hope on increases in depression. Closeness to God neither predicted quixotic hope nor played a moderating role for depression. As educational expectations rise, regular religious practice may help protect the emotional well-being of youth.


Author(s):  
Daniela Di Santo ◽  
Calogero Lo Destro ◽  
Conrad Baldner ◽  
Alessandra Talamo ◽  
Cristina Cabras ◽  
...  

AbstractPositivity (i.e., the individual tendency to positively approach life experiences) has proven to be an effective construct applied in positive psychology. However, individuals’ self-regulation may have contrasting effects on positivity. We specifically examined whether positivity could be partially explained through two aspects of motivation concerned with self-regulation: locomotion (i.e., a motivational orientation concerned with movement) and assessment (i.e., a motivational orientation concerned with comparison and evaluation). Furthermore, based on previous literature that found a link between these aspects and narcissism, we examined whether “adaptive” and “maladaptive” dimensions of narcissism could mediate the effects of locomotion and assessment on increased or decreased positivity. Narcissism was defined by previous research as adaptive or maladaptive insofar as it leads or does not lead to increased psychological well-being. We estimated a mediation model with multiple independent variables and multiple mediators in a cross-sectional study with self-reported data from 190 university students. We found that both locomotion and assessment were associated with adaptive narcissism, which in turn was positively associated with positivity. However, assessment was also associated with maladaptive narcissism, which in turn was negatively associated with positivity. Relationships between aspects of self-regulation, narcissism, and positivity can have significant implications which will be discussed.


2021 ◽  
pp. 147797142110373
Author(s):  
Anna Sverdlik ◽  
Sonia Rahimi ◽  
Robert J Vallerand

University students’ passion for their studies has been previously demonstrated to be important for both their academic performance and their personal well-being. However, no studies to date have explored the role of passion for one’s studies on both academic and personal outcomes in a single model. The present research sought to determine the role of passion in adult university students’ self-regulated learning and psychological well-being (Study 1), as well as the process by which passion shapes these outcomes, namely academic emotions, in Study 2. It was hypothesised that harmonious passion would positively predict both self-regulated learning and psychological well-being in Study 1. Furthermore, the mediating role of academic emotions between passion and outcomes was tested using a prospective design over time in Study 2. Results provided support for the proposed model. Implications for future research and practice focusing on the role of passion in facilitating adaptive emotions, use of self-regulation and well-being in adult students are discussed.


Author(s):  
Nataliia Makarchuk ◽  
◽  
Liliia Kulinenko ◽  
Olga Vasylieva ◽  
Olga Zhurkova ◽  
...  

Objective: The main tasks of this study are as follows: to substantiate the interdependence of perversion as a form of violence and the human ego in the context of hybrid warfare; to prove the existence of perversion as a form of violence against a person in the context of hybrid warfare in Ukraine (personal perversion); to describe the alteration of ego states as conditions for effective human self-regulatory activity in the context of hybrid warfare. Background: Hybrid warfare, including the Ukrainian-Russian conflict, as a phenomenon, has been widely studied both abroad and in Ukraine. However, there are very few works on the psychological impact of such a war. There are currently no works on disorders of human self-regulatory activity in the context of hybrid warfare, which makes the study unique and relevant. Method: The study used a combination of various methods, in particular, structural-clinical interviews, psychological counseling and therapeutic meetings, data analysis. Data were collected for 2014-2020. The total number of participants was 55 people aged 25 to 63 years, with 70% female and 30% male. Results: The latent tension and denial of hybrid warfare result in a gradual increase of neurotization, which is in 95% of cases passes into a neurosis state with concomitant manifestations of symptoms. There is also a deterioration in psychological well-being and phylogenetic disorders (erogenous dysfunction in men, uncontrolled neurotic masturbation in women). Disorders of the mental level of self-regulation determine the manifestation of the mental content of perversion, in which perversion takes on the character of intrapersonal functioning. Conclusion: The combination of disorders of the physical, mental and personal levels of the self-regulatory activity of the psyche increased perverse tendencies in social and political life, which provoked a high rate of psychotization of the entire society and an increase in deficit characterological manifestations of each individual.


2018 ◽  
Vol 26 (2) ◽  
pp. 246-252 ◽  
Author(s):  
Brooke McQuerrey Tuttle ◽  
Zachary Giano ◽  
Michael J. Merten

The nature of police work includes toxic work environments and uncertain danger which imparts a unique type of occupational stress spillover or the transfer of stress from work life to home life for law enforcement officers. Work stress places officers at risk for negative health and psychosocial outcomes. While it has been shown that occupational stress can compromise the well-being of police officers, little is known about how spillover can effect other areas of life for officers such as marital relationships. This study investigates the association between work demands, emotional stress spillover, and marital functioning in a law enforcement sample. Data from 1,180 married law enforcement respondents to the Police Officer Questionnaire which included 148 items assessing work stress, health, family, and support were examined. Responses were analyzed using regression analyses. Results showed that career demands and emotional spillover were statistically significant predictors of the variance in marital functioning. Social and emotional spillover of work-related stress carries negative consequences for communication and emotion regulation within law enforcement marriages.


2020 ◽  
Vol 5 (3) ◽  
pp. 211-216
Author(s):  
Dolly Bansal ◽  
Vijendra Nath Pathak ◽  
J. Pradhan ◽  
Anu Chaudhary

The study aims to highlight the occupation level on occupational stress, psychological well-being, and quality of life of Indian Army Personnel. The study was conducted on one hundred fifty Indian male Army Personnel of different rank belonging to 25 years to 45 years of age group. The cross-sectional design was used. The sample was selected through the purposive sampling technique. The tools measures like the Occupational Stress Index, Psychological Well-Being Scale and WHO Quality of Life-BREF Hindi was individually administered. The data were analysed using descriptive and inferential statistics. One way Analysis of Variance results revealed that there is a significant difference in occupational levels on occupational stress, psychological well-being, and quality of life among Indian Army personnel. Pearson product-moment correlations coefficient showed a significant negative relationship between occupational stress with psychological well-being and quality of life and showed a significant positive relationship between psychological well-being and quality of life among Indian Army Personnel.


Author(s):  
Ahmad Bilal ◽  
Sehrish Wazir ◽  
Shakeela Altaf ◽  
Samina Rasool

Sexual Harassment at workplace (SHW) is a global phenomenon. However, there has been no prior research on the association of SHW and subjective well-being (SWB) of working women in Pakistan. The SWB is an umbrella term that encompasses concepts such as satisfaction with life (SWL) and subjective happiness (SbH). The 200 working women from the public and private sector organizations in Pakistan were recruited randomly. The Sexual Harassment Experience Questionnaire, The Satisfaction with Life Scale, and Subjective Happiness Scale were administered as the main measures. The study met all the ethical considerations. The data was analyzed by the Statistical Package for the Social Sciences and expressed as baseline characteristics, correlation analysis and t tests. There was statistically significant negative relationship of SHW with SWL and SbH in working women. The young age, high school or less education, single marital status, and working in private sector organization were significantly associated with the increased and decreased experience of SHW and SWB respectively. The study recommended the adoption of anti SHW laws by the working sector and the periodic screening of working women for SWB so as to reduce the phenomenon of SHW and enhance the SWL and SbH in working women.


Sign in / Sign up

Export Citation Format

Share Document