The role of atomic oxygen and molecular nitrogen in the relationship between electron temperature and electron density in the ionosphere

Abstract. Observations made by the Hinotori satellite have been analysed to determine the yearly variations of the electron density and electron temperature in the low-latitude topside ionosphere. The observations reveal the existence of an equinoctial asymmetry in the topside electron density at low latitudes, i.e. the density is higher at one equinox than at the other. The asymmetry is hemisphere-dependent with the higher electron density occurring at the March equinox in the Northern Hemisphere and at the September equinox in the Southern Hemisphere. The asymmetry becomes stronger with increasing latitude in both hemispheres. The behaviour of the asymmetry has no significant longitudinal and magnetic activity variations. A mechanism for the equinoctial asymmetry has been investigated using CTIP (coupled thermosphere ionosphere plasmasphere model). The model results reproduce the observed equinoctial asymmetry and suggest that the asymmetry is caused by the north-south imbalance of the thermosphere and ionosphere at the equinoxes due to the slow response of the thermosphere arising from the effects of the global thermospheric circulation. The observations also show that the relationship between the electron density and electron temperature is different for daytime and nighttime. During daytime the yearly variation of the electron temperature has negative correlation with the electron density, except at magnetic latitudes lower than 10°. At night, the correlation is positive.Key words: Ionosphere (equatorial ionosphere; ionosphere-atmosphere interactions; plasma temperature and density)

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The role of vibrationally excited oxygen and nitrogen in the D and E regions of the ionosphere

Annales Geophysicae ◽

10.1007/s00585-994-1085-1 ◽

1994 ◽

Vol 12 (10/11) ◽

pp. 1085-1090 ◽

Cited By ~ 5

Author(s):

A. V. Pavlov

Keyword(s):

Electron Temperature ◽

Electron Density ◽

Anharmonic Oscillator ◽

Energy Levels ◽

Vibrationally Excited ◽

Continuity Equations ◽

D Region ◽

E Region ◽

Excited Oxygen

Abstract. In this paper we present the results of a study of the effect of vibrationally excited oxygen, O*2, and nitrogen, N*2, on the electron density, Ne, and the electron temperature, Te, in the D and E regions. The sources of O*2 are O-atom recombination, the photodissociation of O3, and the reaction of O3 with O at D region altitudes. The first calculations of O*2( j) number densities, Nj, are obtained by solving continuity equations for the models of harmonic and anharmonic oscillator energy levels, j=1-22. It is found that day time values of Nj are less than nighttime values. We also show that the photoionization of O*2 ( j ≥ 11) by Lα-radiation has no influence on the D region Ne. In the nighttime D region the photoionization O*2 ( j ≥ 11) by scattered Lα-radiation can be a new source of O+2. We show that the N*2 and O*2 de-excitation effect on the electron temperature is small in the E region of the ionosphere and cannot explain experimentally observed higher electron temperatures.

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Choosing a Markov blanket

Behavioral and Brain Sciences ◽

10.1017/s0140525x19002632 ◽

2020 ◽

Vol 43 ◽

Author(s):

Thomas Parr

Keyword(s):

Markov Blanket ◽

Target Article ◽

The Relationship

Abstract This commentary focuses upon the relationship between two themes in the target article: the ways in which a Markov blanket may be defined and the role of precision and salience in mediating the interactions between what is internal and external to a system. These each rest upon the different perspectives we might take while “choosing” a Markov blanket.

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Staring Down Death

Crisis ◽

10.1027/0227-5910/a000367 ◽

2016 ◽

Vol 37 (3) ◽

pp. 212-217 ◽

Cited By ~ 7

Author(s):

Thomas E. Joiner ◽

Melanie A. Hom ◽

Megan L. Rogers ◽

Carol Chu ◽

Ian H. Stanley ◽

...

Keyword(s):

Suicide Risk ◽

Clinical Utility ◽

Blink Rate ◽

Specific Task ◽

Careful Planning ◽

Eye Blink ◽

Eye Blinks ◽

Potential Clinical Utility ◽

The Relationship

Abstract. Background: Lowered eye blink rate may be a clinically useful indicator of acute, imminent, and severe suicide risk. Diminished eye blink rates are often seen among individuals engaged in heightened concentration on a specific task that requires careful planning and attention. Indeed, overcoming one’s biological instinct for survival through suicide necessitates premeditation and concentration; thus, a diminished eye blink rate may signal imminent suicidality. Aims: This article aims to spur research and clinical inquiry into the role of eye blinks as an indicator of acute suicide risk. Method: Literature relevant to the potential connection between eye blink rate and suicidality was reviewed and synthesized. Results: Anecdotal, cognitive, neurological, and conceptual support for the relationship between decreased blink rate and suicide risk is outlined. Conclusion: Given that eye blinks are a highly observable behavior, the potential clinical utility of using eye blink rate as a marker of suicide risk is immense. Research is warranted to explore the association between eye blink rate and acute suicide risk.

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Parenting Behaviors and Anxiety in Young Adults

Journal of Individual Differences ◽

10.1027/1614-0001/a000169 ◽

2015 ◽

Vol 36 (3) ◽

pp. 170-176 ◽

Cited By ~ 5

Author(s):

Erin N. Stevens ◽

Joseph R. Bardeen ◽

Kyle W. Murdock

Keyword(s):

Effortful Control ◽

Parenting Behaviors ◽

Protective Role ◽

Anxiety Symptoms ◽

Interactive Effects ◽

Parental Overprotection ◽

High Control ◽

Development Of Anxiety ◽

The Relationship

Parenting behaviors – specifically behaviors characterized by high control, intrusiveness, rejection, and overprotection – and effortful control have each been implicated in the development of anxiety pathology. However, little research has examined the protective role of effortful control in the relation between parenting and anxiety symptoms, specifically among adults. Thus, we sought to explore the unique and interactive effects of parenting and effortful control on anxiety among adults (N = 162). Results suggest that effortful control uniquely contributes to anxiety symptoms above and beyond that of any parenting behavior. Furthermore, effortful control acted as a moderator of the relationship between parental overprotection and anxiety, such that overprotection is associated with anxiety only in individuals with lower levels of effortful control. Implications for potential prevention and intervention efforts which specifically target effortful control are discussed. These findings underscore the importance of considering individual differences in self-regulatory abilities when examining associations between putative early-life risk factors, such as parenting, and anxiety symptoms.

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Social Support, Emotional Intelligence, and Posttraumatic Stress Disorder Symptoms

Journal of Individual Differences ◽

10.1027/1614-0001/a000185 ◽

2016 ◽

Vol 37 (1) ◽

pp. 31-39 ◽

Cited By ~ 8

Author(s):

Nicole L. Hofman ◽

Austin M. Hahn ◽

Christine K. Tirabassi ◽

Raluca M. Gaher

Keyword(s):

Social Support ◽

Posttraumatic Stress Disorder ◽

Emotional Intelligence ◽

Protective Factors ◽

Posttraumatic Stress ◽

Stress Disorder ◽

Traumatic Events ◽

Ptsd Symptoms ◽

The Relationship

Abstract. Exposure to traumatic events and the associated risk of developing Posttraumatic stress disorder (PTSD) symptoms is a significant and overlooked concern in the college population. It is important for current research to identify potential protective factors associated with the development and maintenance of PTSD symptoms unique to this population. Emotional intelligence and perceived social support are two identified protective factors that influence the association between exposure to traumatic events and PTSD symptomology. The current study examined the mediating role of social support in the relationship between emotional intelligence and PTSD symptoms. Participants included 443 trauma-exposed university students who completed online questionnaires. The results of this study indicated that social support mediates the relationship between emotional intelligence and reported PTSD symptoms. Thus, emotional intelligence is significantly associated with PTSD symptoms and social support may play an integral role in the relationship between emotional intelligence and PTSD. The current study is the first to investigate the role of social support in the relationship between emotional intelligence and PTSD symptoms. These findings have important treatment and prevention implications with regard to PTSD.

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Coping Humor as a Mediator Between Emotional Intelligence and Job Satisfaction

Journal of Personnel Psychology ◽

10.1027/1866-5888/a000185 ◽

2017 ◽

Vol 16 (3) ◽

pp. 155-159 ◽

Cited By ~ 4

Author(s):

Peizhen Sun ◽

Jennifer J. Chen ◽

Hongyan Jiang

Keyword(s):

Job Satisfaction ◽

Emotional Intelligence ◽

Future Research ◽

Satisfaction Scale ◽

Primary School Teachers ◽

Mediating Role ◽

Regulation Of Emotion ◽

The Relationship ◽

Overall Job Satisfaction

Abstract. This study investigated the mediating role of coping humor in the relationship between emotional intelligence (EI) and job satisfaction. Participants were 398 primary school teachers in China, who completed the Wong Law Emotional Intelligence Scale, Coping Humor Scale, and Overall Job Satisfaction Scale. Results showed that coping humor was a significant mediator between EI and job satisfaction. A further examination revealed, however, that coping humor only mediated two sub-dimensions of EI (use of emotion and regulation of emotion) and job satisfaction. Implications for future research and limitations of the study are discussed.

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