Prediction of postural risk of fall initiation based on a two-variable description of body dynamics: Position and velocity of center of mass

This research addresses the question: what is the risk of fall initiation at a certain human posture? There are postures from which no one is able to keep their balance and a fall will surely initiate (risk = 1), and others from which everyone may regain their stability (risk = 0). In other postures, only a portion of people can control their stability. One may interpret risk to chance of a fall to be initiated, and based on the portion of fallers assign a risk value to a given human posture (postural risk). Human posture can be mapped to a point in a 2-dimensional space: the x − v plane, the axes of which are horizontal components of the position and velocity of the center of mass of the body. For every pair of (x, v), the outcome of the balance recovery problem defines whether a person with a given strength level is able to regain their stability when released from a posture corresponding to that point. Using strength distribution data, we estimated the portion of the population who will initiate a fall if starting at a certain posture. A fast calculation approach is also introduced to replace the time-consuming method of solving the recovery problem many times. Postural risk of fall initiation for situations expressed by (x, v) pairs for the entire x − v plane is calculated and shown in a color-map.     

Fake Journals: Their Features and Some Viable Ways to Distinguishing Them

In this paper, we aim to discuss the fake journals and their advertisement and publication techniques. These types of journals mostly start and continue their activities by using the name of some indexed journals and establishing fake websites. The fake journals and publishers, while asking the authors for a significant amount of money for publishing their papers, have no peer-review process, publish the papers without any revision on the fake sites, and put the scientific reputation and prestige of the researchers in jeopardy. In the rest of the paper, we present some viable techniques in order for researchers and students to identify these journals.     

THE ARTIFICIALIZATION OF MIND AND WORLD

The rapid advancement of artificial intelligence (AI) has led to renewed ambitions of developing artificial general intelligence. Alongside this has been a resurgence in the development of virtual and augmented reality (V/AR) technologies, which are viewed as “disruptive” technologies and the computing platforms of the future. V/AR effectively bring the digital world of machines, robots, and artificial agents to our senses while entailing the transposition of human activity and presence into the digital world of artificial agents and machine forms of intelligence. The intersection of humans and machines in this shared space brings humans and machines into ontological continuity as informational entities in a totalizing informational environment, which subsumes both cyber and physical space in an artificially constructed virtual world. The reconstruction of mind (through AI) and world (through V/AR) thus has significant epistemological, ontological, and anthropological implications, which constitute the underlying features in the artificialization of mind and world.     

ISLAMIC PHILOSOPHY AND THE CHALLENGE OF CLONING

Scientific achievements, especially in contemporary biology, have led and continue to lead to uncertainties for some believers with regard to their understanding of the role of God as the creator. This essay, avoiding philosophical jargon, expounds the stance of Islamic philosophy on this matter and argues that such anxiety and doubt are unfounded. Drawing upon the thousand‐year‐old distinction between two types of cause, real and preparatory, as formulated by Muslim philosophers, the argument demonstrates that seeing biological advances as rivaling God's creation, as traditionally understood in the Abrahamic religions, is a premature judgment based on a faulty conflation. This comes to light most clearly through Mulla Sadra's analysis of causality, the far‐reaching implications of which are briefly mentioned.     

The Relationship between Religious Coping and Self-Care Behaviors in Iranian Medical Students

In recent years, researchers have identified that coping strategies are an important contributor to an individual’s life satisfaction and ability to manage stress. The positive relationship between religious copings, specifically, with physical and mental health has also been identified in some studies. Spirituality and religion have been discussed rigorously in research, but very few studies exist on religious coping. The aim of this study was to determine the relationship between religious coping methods (i.e., positive and negative religious coping) and self-care behaviors in Iranian medical students. This study used a cross-sectional design of 335 randomly selected students from Mazandaran University of Medical Sciences, Iran. A data collection tool comprised of the standard questionnaire of religious coping methods and questionnaire of self-care behaviors assessment was utilized. Data were analyzed using a two-sample t test assuming equal variances. Adjusted linear regression was used to evaluate the independent association of religious copings with self-care. Adjusted linear regression model indicated an independent significant association between positive (b = 4.616, 95% CI 4.234–4.999) and negative (b = ?3.726, 95% CI ?4.311 to ?3.141) religious coping with self-care behaviors. Findings showed a linear relationship between religious coping and self-care behaviors. Further research with larger sample sizes in diverse populations is recommended.     

The impact of religious cognitive behavioural therapy (RCBT) on general health among Iranians

The aim of this study was to determine the efficacy of religious cognitive behavioural therapy (RCBT) on general health among Iranians. This study was a randomised, single-blinded clinical trial from April 2017 to October 2017. One hundred forty-four Yazd citizens were selected using a cluster sampling method and randomly assigned to experimental or control groups. The experimental groups received 10 sessions of RCBT, lasting 45 minutes once a week and the control group remained on the waiting list. The results showed that mean general health scores in the experimental groups were significantly lower than those in the control group on the post-test. RCBT had the most positive impact on somatic symptoms, anxiety/insomnia, social dysfunction, depression, and mental health. Based on these findings RCBT can be considered a significant and effective practical therapy for improving both general and psychological health.     

The effects of adenosine receptor agonists and antagonists on morphine state-dependent memory of passive avoidance

Pretraining administration of morphine (5 mg/kg, intraperitonically) in a step-down passive avoidance task led to state-dependent learning with impaired retrieval on the test day that was dose-dependently restored by pretest administration of morphine (0.5, 1, 3, and 5 mg/kg). This restoration was reversible by pretest naloxone administration. Pretest administration of adenosine receptor antagonists theophylline or 8-phenyltheophylline (8-PT) did not alter morphine-induced amnesia. However, both the antagonists inhibited the restoration of memory by pretest morphine (5 mg/kg). Adenosine A(1) receptor agonists N(6)-cyclohexyladenosine (CHA) or N(6)-phenylisopropyladenosine (R-PIA) only at the higher doses used, and adenosine A(2) receptor agonist 5'-N-ethylcarboxaminoadenosine (NECA), at all doses used, decreased morphine-induced amnesia in a dose-dependent manner. Pretest administration of low doses of CHA, R-PIA, or NECA significantly showed additive effects with low dose pretest morphine (1 mg/kg) in restoring memory. The promnestic effects of high-dose CHA and R-PIA were inhibited by theophylline or 8-PT but not by naloxone. The additive effects of low-dose CHA or R-PIA and morphine were inhibited by theophylline, 8-PT, or a higher dose of naloxone. The promnestic effect of NECA and its additive effect with low-dose morphine were both inhibited by theophylline and naloxone but not by 8-PT. It is concluded that activation of the adenosinergic system, through both A(1) and A(2) receptors, can reverse morphine-induced amnesia and is involved in morphine state of memory.     

Emotional stimuli facilitate time perception in children with attention‐deficit/hyperactivity disorder

The aim of this study was to compare the effect of different emotional stimuli (neutral, positive, and negative) on time perception in children with attention‐deficit/hyperactivity disorder (ADHD) and normal children in dual‐task form. Five hundred and ninety‐nine students from primary schools were randomly selected. The Conner's Teacher Rating Scale (CTRS) questionnaire was completed by teachers. A total of 100 children with a score above the cut‐off point for the CTRS were further assessed using the Child Symptom Inventory‐4 (CSI‐4). A total of 34 children with ADHD and 31 controls completed an emotional time discrimination task in two blocks of 1000 and 2000 ms duration. Children were asked to compare three image groups: neutral with neutral, neutral with positive, and neutral with negative images. Children with ADHD had significantly better performance in the emotional time discrimination task across all conditions when compared with controls: On average, discrimination thresholds were approximately 35 ms shorter for the children with ADHD. Our results indicate that children with ADHD have higher sensitivity to time relative to controls in a situation in which they must distribute resources between temporal and emotional processing. On the basis of the interference effect and the working memory capacity hypothesis, this dividing of attention causes a decrease of time accuracy in normal children.