Kellymurray3821

This study investigated the function of the beetle's claw for its smooth and slipless walking and designed an artificial claw open-close cycle mechanism to mimic the beetle's walking. First, the effects of claw opening and closing on beetles' ability to attach to surfaces were examined. A beetle does not have an attachment pad, and only its claws work to grip the ground; its claw opens and closes and attaches with two sharp hooks. With their claws, beetles can smoothly walk, neither slipping on nor having their claws stuck in the surface. How do they perform smooth walking with sharp claws? In this study, we observed that beetles close their claws when they raise and swung their legs forward, while they open their claws when they lowered their legs to the ground. We then conducted non-destructive tests their claws were forced open or closed. There was a significant difference in the trajectories of forced-closed claws compared to intact claws and forced-open claws. When their claws were forced-closed, this caused slippage in walking. On the other hand, when a claw was forced-open and its rotation was also inhibited, the claw stuck heavily in the surface, and the beetle could not walk. Based on these findings, we designed an artificial claw to open and close in the same cyclic manner as in the case of natural beetles. The performance of the artificial claw was consistent with the conclusions drawn from natural beetles the locomotive robot with the artificial claw smoothly moved without slippage. Through these observations, non-destructive tests and performance of the bio-inspired artificial claws, this study confirmed the function of the open-close cycle of beetle claws and demonstrated and successfully adopted it for a locomotive robot.No abstract avalilable.No abstract avalilable.No abstract avalilable.No abstract avalilable.No abstract avalilable.No abstract avalilable.The new psychiatry classification systems, despite long lasting preparation and broad consensus, do not provide an answer to the fundamental dilemmas of modern psychiatry. This is because categorical approaches are independent of the underlying neurobiological and genetic factors and cannot integrate the results of modern research, which is a big barrier of the neuroscientific development. Recent neuroscience research, with revolutionary new methods and tools and the analysis of huge databases, provides more and more information about the normal and abnormal functioning of the central nervous system. It is an enor - mous challenge to interpret these new findings, so there is a growing need to develop theoretical models that help to better understand the complexity of mental disorders and the mechanism of their development. In my paper, I summarize recent research methods related to the symptomatic heterogenity and etiological back - ground of mental disorders and present the results of some new transdiagnostic studies, in order to illustrate the key aspects of the Research Domain Criteria (RDoC) system developed to integrate the new results. The RDoC framework helps to interpret the results of neuroscience research in a complex way and facilitates the detec - tion of differences in genotypes and (endo)phenotypes, as well as a better understanding of the pathophysiological mechanisms and developmental differences responsible for the development of mental disorders. This can mean signi ficant progress not only in renewing psychiatric nosology, but also in identifying new preventive and therapeutic targets.Tourette syndrome is a neurodevelopmental disorder that is characterized by motor and vocal tics and by alterations in the cortico-basal ganglia-thalamo-cortical (CBGTC) circuitry. The CBGTC circuitry plays an important role in procedural learning, in the acquisition of skills and habits. Tics and habits are similar phenomenologically since tics can be described as overlearned habits. Based on these characteristics, prior studies proposed enhanced pro - ce dural learning, i.e., procedural hyperfunctioning in Tourette syndrome. A growing body of evidence supports this notion. The focus of the present review article is to discuss procedural hyperfunctioning in Tourette syndrome. We aim to shed light on a cognitive advantage in Tourette syndrome and to draw attention to the notion that pathologies and developmental disorder can be characterized not only with impairments and cognitive dysfunctions but with enhanced functions as well.

The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders has included nonsuicidal self-injury (NSSI) as a proposed independent diagnostic category, emphasizing the nonsuicidal nature of the phenomenon. Nevertheless, this terminology and concept have provoked a still ongoing scientific debate among researchers and clinicians.

By extending a systematic search with a broader focus on the prevalence and psychopathological correlates of NSSI, the aim of the present study is to explore the relationships between NSSI and suicidal behavior.

A systematic literature search was conducted in five databases (PubMed, OVID Medline, OVID PsycINFO, Scopus, Web of Science) with the search terms "NSSI" and "prevalence" and "mental disorder" or "psychiatric disorder". The results were completed by manual searches. Inclusion criteria were for each publication to be an empirical study in English language that does not focus on a specific population.

A total of 25 papers examined the relationship betwen the publications reviewed, significant suicidal risk is associated with NSSI in both adolescence and adulthood. This risk may be even higher in the presence of certain comorbid disorders and other psychosocial factors as well as in the presence of certain NSSI patterns such as repetitiveness or multiple NSSI methods.The COVID-19 epidemic was declared a pandemic by the World Health Organization on 11 March 2020. The outbreak and spread of the disease has caused fear, insecurity and anxiety in people around the world. The pan - de mic has both direct and indirect effects on mental health problems, as fear of the virus can trigger or exacerbate mental illness and influence the onset of symptoms. Case studies suggest that this emergency can affect the content of delusions and hallucinations, as well as contribute to psychotic relapse. In addition to a brief review of the literature, we describe the case of three psychotic patients of the Jahn Ferenc South Pest Hospital, Centre for Psychiatry and Addiction Medicine, whose delusions and hallucinations were affected by the COVID-19 pandemic. Wnt-C59 In two cases, the symptoms of a reactive, transient psychotic episode presumably provoked by psychosocial stressors were determined, and in one case, the positive symptoms of a patient suffering in a psychotic disorder were determined by COVID-19.