Search results for "non-human"
showing 10 items of 183 documents
Obesity and Obstructive Sleep Apnea
2021
Obstructive sleep apnea (OSA) is characterized by upper airway collapse during sleep. Chronic intermittent hypoxia, sleep fragmentation, and inflammatory activation are the main pathophysiological mechanisms of OSA. OSA is highly prevalent in obese patients and may contribute to cardiometabolic risk by exerting detrimental effects on adipose tissue metabolism and potentiating the adipose tissue dysfunction typically found in obesity. This chapter will provide an update on: (a) the epidemiological studies linking obesity and OSA; (b) the studies exploring the effects of intermittent hypoxia and sleep fragmentation on the adipose tissue; (c) the effects of OSA treatment with continuous positi…
Activation of the glymphatic system during sleep – is the cerebral venous outflow a missing piece of the puzzle?
2019
Until recently, mechanisms responsible for an activation of the glymphatic system of the brain, the system which is responsible for cleansing of this organ of waste products, were unclear. A recently published paper has finally shed some light on this problem. It has been demonstrated that there is a temporary decrease of the arterial cerebral blood flow during the deep phase of sleep, which is followed by an influx of the cerebrospinal fluid into the cranial cavity, and that this phenomenon is probably responsible for the activation of the glymphatic system. Although, of as yet, this issue has not been studied, it is likely that such a mechanism is not effective in the settings of disturbe…
Association of Stress and Musculoskeletal Pain With Poor Sleep: Cross-Sectional Study Among 3,600 Hospital Workers
2018
Background: While acute stress and pain are part of our inherent survival mechanisms, persistent stress and pain can negatively impact health and well-being. This may also lead to poor sleep and thus a lack of recovery. This study investigated the influence of stress and musculoskeletal pain on sleep quality. Methods: A total of 3,593 Danish hospital workers replied to a questionnaire about work and health. Pain intensity was evaluated using subjective values as an average of 9 body parts. Stress was assessed using the full version of Cohen's Perceived Stress scale. Sleep quality was rated using 3 questions on sleep characteristics. Associations between stress and pain (mutually adjusted pr…
Sleep restriction for the duration of a work week impairs multitasking performance
2010
It is important to develop shift schedules that minimise the chance for sleep-related human error in safety-critical domains. Experimental data on the effects of sleep restriction (SR) play a key role in this development work. In order to provide such data, we conducted an experiment in which cognitively demanding and long-duration task performance, simulating task performance at work, was measured under SR and following recovery. Twenty healthy male volunteers, aged 19-29 years, participated in the study. Thirteen of them had first two baseline days (8-h sleep opportunity per day), then five SR days (4-h sleep) and finally two recovery days (8-h sleep). Seven controls were allowed to sleep…
Cardiac Autonomic Activity during Sleep under the Influence of Radiofrequency Electromagnetic Fields. Autonome Herzaktivitat im Schlaf unter dem Einf…
2005
Question of the study We investigated the influence of radiofrequency electromagnetic fields emitted by digital mobile telephones on heart rate variability (HRV) during sleep in healthy young men.
The sleep EEG's microstructure in depression: alterations of the phase relations between EEG rhythms during REM and NREM sleep
2002
Abstract Objective : We investigated the microstructure of sleep electroencephalograms (EEGs) of 13 unmedicated depressive inpatients and 13 healthy controls matched in sex and age, hypothesizing that depressives depict an alteration of certain EEG oscillations across the night. Methods : We digitized the sleep EEGs with a sampling rate of 100Hz (bipolar derivation C z –P z , 1440 single sweeps; 2048 data points each), calculated the time course of delta (1–3.5Hz), theta (3.5–7.5Hz), alpha (7.5–15Hz), and beta (15–35Hz) activity over the night, and determined the correlation coefficients of these different EEG rhythms separately for rapid eye movement (REM) and non-rapid eye movement (NREM)…
Acute Effect of Alcohol Intake on Cardiovascular Autonomic Regulation During the First Hours of Sleep in a Large Real-World Sample of Finnish Employe…
2018
Background Sleep is fundamental for good health, and poor sleep has been associated with negative health outcomes. Alcohol consumption is a universal health behavior associated with poor sleep. In controlled laboratory studies, alcohol intake has been shown to alter physiology and disturb sleep homeostasis and architecture. The association between acute alcohol intake and physiological changes has not yet been studied in noncontrolled real-world settings. Objective The aim of this study was to assess the effects of alcohol intake on the autonomic nervous system (ANS) during sleep in a large noncontrolled sample of Finnish employees. Methods From a larger cohort, this study included 4098 su…
Umani e animali nell’antropologia socioculturale contemporanea
2022
In the chapter, I show the connection between the ways in which the nineteenth-twentieth century sociocultural anthropologists became interested in the study of human-animal relationships and the dominant conceptions about the relationship between humanity and animality in philosophical and scientific thought of these two centuries. Till the last part of the twentieth century non-human animals were considered by anthropologists mainly as material and/or symbolic resources for the reproduction of humans and their social orders. This view paralleled the dominant vision in Western modern philosophical and scientific thought in which non-human animals were assimilated to mindless machines belon…
Inhimillisen kulttuurin reunaehtoja tutkimassa
2011
Joulukuussa 2010 Prahaan, Kaarlen yliopiston humanistisen tiedekunnan tiloihin, kokoontui joukko antropologeja, sosiologeja ja monien lähitieteiden edustajia keskustelemaan ei-inhimillisten tekijöiden vaikutuksesta inhimilliseen kulttuuriin ja yhteiskunnallisiin ilmiöihin. Lähtökohtana oli avata uusia tutkimuksellisia näkökulmia, joiden kautta voimme tutkia elämäämme kiinteästi vaikuttavia tekijöitä osana kulttuurista kokonaisuutta. Päivien keskeisiksi teemoiksi muodostuivat materiaalisen suhde aikaan ja luonnon oloihin, eläinten ja eläinkulttuurin tutkimus sekä ajallisten ja tilallisten etäisyyksien vaikutukset ihmisten arkeen. Yksi keskeinen tekijä kulttuurimme muodostumiselle on se fyysi…
The Human and Non-human Interconnectedness in Three Chinese Contemporary Artists
2021
Today, we live in an era known as the Anthropo cene. The interconnectedness between humans and other living entities and environments is an essential part of the theme of the Anthropocene and a central concern in contemporary culture and art. Through the emphasis of the role of non human agents, new materialism and posthuman ism radically problematize the binaries of sub ject/object, human/nonhuman, cultural/natural, and mind/body, and challenge the superiority of the human. Although both Chinese and Western scholars widely acknowledge that Chinese tradi tional culture and art are deeply based on less anthropocentric modes of thinking, the contem porary Chinese artists’ expression of the in…