scholarly journals Assessment of Psychotic Symptoms in Individuals Exposed to Very High or Extreme Altitude: A Field Study

2021 ◽  
Author(s):  
Katharina Hüfner ◽  
Fabio Caramazza ◽  
Agnieszka E. Stawinoga ◽  
Evelyn R. Pircher Nöckler ◽  
Paolo Fusar-Poli ◽  
...  
Keyword(s):  
Field Study ◽  
Psychotic Symptoms ◽  
Extreme Altitude ◽  
Very High

scholarly journals Isolated psychosis during exposure to very high and extreme altitude – characterisation of a new medical entity

2017 ◽  
Vol 48 (11) ◽  
pp. 1872-1879 ◽  
Author(s):  
Katharina Hüfner ◽  
Hermann Brugger ◽  
Eva Kuster ◽  
Franziska Dünsser ◽  
Agnieszka E. Stawinoga ◽  
...  
Keyword(s):  
High Altitude ◽  
Acute Mountain Sickness ◽  
Supplemental Oxygen ◽  
Status Change ◽  
Statistical Manual ◽  
Medical Diagnoses ◽  
Diagnostic And Statistical Manual ◽  
Extreme Altitude ◽  
Medical Entity ◽  
Very High

BackgroundPsychotic episodes during exposure to very high or extreme altitude have been frequently reported in mountain literature, but not systematically analysed and acknowledged as a distinct clinical entity.MethodsEpisodes reported above 3500 m altitude with possible psychosis were collected from the lay literature and provide the basis for this observational study. Dimensional criteria of the Diagnostic and Statistical Manual of Mental Disorders were used for psychosis, and the Lake Louise Scoring criteria for acute mountain sickness and high-altitude cerebral oedema (HACE). Eighty-three of the episodes collected underwent a cluster analysis to identify similar groups. Ratings were done by two independent, trained researchers (κ values 0.6–1).FindingsCluster 1 included 51% (42/83) episodes without psychosis; cluster 2 22% (18/83) cases with psychosis, plus symptoms of HACE or mental status change from other origins; and cluster 3 28% (23/83) episodes with isolated psychosis. Possible risk factors of psychosis and associated somatic symptoms were analysed between the three clusters and revealed differences regarding the factors ‘starvation’ (χ2 test, p = 0.002), ‘frostbite’ (p = 0.024) and ‘supplemental oxygen’ (p = 0.046). Episodes with psychosis were reversible but associated with near accidents and accidents (p = 0.007, odds ratio 4.44).ConclusionsEpisodes of psychosis during exposure to high altitude are frequently reported, but have not been specifically examined or assigned to medical diagnoses. In addition to the risk of suffering from somatic mountain illnesses, climbers and workers at high altitude should be aware of the potential occurrence of psychotic episodes, the associated risks and respective coping strategies.

scholarly journals Deciphering Molecular Cascades in a Novel Acclimatization Strategy for Rapid Ascent to High Altitude

2017 ◽  
Author(s):  
Subhojit Paul ◽  
Anamika Gangwar ◽  
Kalpana Bhargava ◽  
Yasmin Ahmad
Keyword(s):  
High Altitude ◽  
Plasma Proteins ◽  
Redox Homeostasis ◽  
Redox Stress ◽  
Rapid Induction ◽  
Extreme Altitude ◽  
Two Factors ◽  
Rapid Ascent ◽  
Very High ◽  
Bioinformatics Workflow

ABSTRACTThe repercussions of hypobaric hypoxia are dependent upon two factors-time and intensity of exposure. The effects of intensity i.e. variation of altitude are yet unknown although it is a significant factor in terms of acclimatization protocols. In this study we present the effects of acute (24 h) exposure to high (10,000 ft), very high (15,000 ft) and extreme altitude (25,000 ft) zones on lung and plasma using semi-quantitative redox specific transcripts and quantitative proteo-bioinformatics workflow in conjunction with redox stress assays. Our findings indicate that very high altitude exposure elicits systemic redox homeostatic processes due to failure of lung redox homeostasis without causing mortality. We also document a rapid acclimatization protocol causing a shift from 0 to 100% survival at 25,000 ft in male SD rats upon rapid induction. Finally we posit the various processes involved and the plasma proteins that can be used to ascertain the acclimatization status of an individual.

scholarly journals PENGEMBANGAN TES KETERAMPILAN BERPIKIR KREATIF

2015 ◽  
Vol 48 (1-3) ◽  
Author(s):  
I Wayan Redhana
Keyword(s):  
Research And Development ◽  
Field Study ◽  
Creative Thinking ◽  
Thinking Skills ◽  
Thinking Skill ◽  
Preliminary Testing ◽  
Skill Test ◽  
R Value ◽  
Very High ◽  
Creative Thinking Skill

Abstract: The development of creative thinking skill test. The study was aimed to develop free-content-creative thinking skill test used to measure students’ creative thinking skills. To develop that test, research and development utilizing Borg and Gall model was conducted. Steps of the develop-ment in the study were conducted until preliminary testing. Findings of library study indicated that indicators or scales of creative thinking skills being used to design the creative thinking skills inclu-ded fluency, originality, and flexibility. Findings of field study found that some teachers did not know if there were tests to measure students’ creative thinking skills and they did not create the creative thinking skill test. The test being developed in the study consisted of 18 items. The prelimi-nary testing produced one item needed to be revised and the remainings could be used. Reliability of test was very high with r value of 0.880. Keywords: creative thinking, flexibility, fluency, originality, test Abstrak: Pengembangan Tes Keterampilan Berpikir Kreatif. Penelitian ini bertujuan mengem-bangkan tes keterampilan berpikir bebas konten yang dapat digunakan untuk mengukur keteram-pilan berpikir siswa. Untuk mengembangkan tes tersebut, penelitian dan pengembangan model Borg dan Gall dilakukan. Tahap pengembangan pada penelitian ini sampai pada tahap uji coba terbatas. Hasil-hasil studi pustaka menunjukkan bahwa  indikator atau skala keterampilan berpikir kreatif yang digunakan untuk menyusun tes keterampilan berpikir kreatif meliputi kelancaran, keaslian, dan keluwesan. Hasil-hasil studi lapangan menemukan bahwa beberapa guru tidak mengetahui jika terdapat tes yang dapat mengukur kemampuan berpikir kreatif seseorang dan guru belum pernah membuat tes keterampilan berpikir kreatif. Tes keterampilan berpikir kreatif yang dikembangkan pada penelitian ini terdiri atas 18 butir soal. Uji coba terbatas tes menghasilkan satu butir soal direvisi, butir soal sisanya dapat dipakai. Reliabilitas tes sangat tinggi, yaitu dengan nilai r sebesar 0,880. Kata-kata Kunci: berpikir kreatif, keaslian, kelancaran, keluwesan, tes

scholarly journals Severe Psychotic Disorder as the Main Manifestation of Adrenal Insufficiency

2015 ◽  
Vol 2015 ◽  
pp. 1-4 ◽  
Author(s):  
Julia de Lima Farah ◽  
Carolina Villar Lauand ◽  
Lucas Chequi ◽  
Enrico Fortunato ◽  
Felipe Pasqualino ◽  
...  
Keyword(s):  
Adrenal Insufficiency ◽  
Psychotic Disorder ◽  
Clinical Presentation ◽  
Neuropsychiatric Symptoms ◽  
Clinical Signs ◽  
Brain Magnetic Resonance Imaging ◽  
Serum Cortisol ◽  
Psychotic Symptoms ◽  
Primary Adrenal Insufficiency ◽  
Very High

We describe a case of severe psychotic disorder as the only manifestation of primary adrenal insufficiency. A 63-year-old man presented with psychotic symptoms without any prior psychiatric history. During the clinical and laboratorial investigation, exams revealed a normovolemic hyponatremia. The patient showed no other clinical signs or symptoms compatible with adrenal insufficiency but displayed very high ACTH and low serum cortisol concentrations. Brain magnetic resonance imaging showed no significant changes, including the pituitary gland. The patient was initially treated with intravenous corticosteroids, resulting in rapid remission of the psychotic symptoms. The association between adrenal insufficiency and neuropsychiatric symptoms is rare but these symptoms can often be the first clinical presentation of the disease.

scholarly journals Ascidians at Currais islands, Paraná, Brazil: taxonomy and distribution

2005 ◽  
Vol 5 (2) ◽  
pp. 167-186 ◽  
Author(s):  
Rosana Moreira da Rocha ◽  
Suzana Barros de Faria
Keyword(s):  
Field Study ◽  
New Records ◽  
Seasonal Pattern ◽  
The State ◽  
Southern Brazil ◽  
Conservation Unit ◽  
Spatial And Temporal Scales ◽  
The North ◽  
North Side ◽  
Very High

The Currais Islands is a group of a few small rocky islands in the state of Paraná, in southern Brazil, which provides an interesting location for the study of ascidians. Subtidal diversity is very high and the islands have recently been proposed as a Conservation Unit. A field study was established on the largest island to understand ascidian distributions on spatial and temporal scales. Transects, sampled three times during 2002 and 2003, were established on northern and southern locations of the island as well as at three depths. Twenty species were recorded; the most common were Didemnum rodriguesi, Didemnum speciosum and Didemnum granulatum. Three species are possibly new and will be described elsewhere. An additional nine are new records for the state of Paraná: Perophora regina, Didemnum speciosum, Trididemnum orbiculatum, Eudistoma carolinense, Aplidium pentatrema, Molgula phytophila, Botryllus tuberatus, Symplegma brakenhielmi and Polyandrocarpa anguinea. While all these species are distributed between 6 and 15 m, there is a tendency to reduction of abundance towards 15 m in several species. Some species appear to prefer the north side of the island. Several species show temporal changes in abundance, with some being most common in the spring and others in the summer, but we can not affirm yet that there is a seasonal pattern between years.

scholarly journals THE ATTITUDES OF HUMAN CAPITAL IN INTERNATIONAL COMPANIES ‎TOWARDS USING PODCASTING AS AN INNOVATIVE ASYNCHRONOUS TRAINING ‎AND DEVELOPING TOOL

2017 ◽  
Vol 1 (3) ◽  
pp. 138-149
Author(s):  
Ahmed Eid GHAREEB
Keyword(s):  
Human Capital ◽  
Field Study ◽  
Positive Attitude ◽  
High Motivation ◽  
Asynchronous Training ◽  
Very High ◽  
Do So ◽  
International Companies

Although many studies discussed podcasting benefits from different areas like (  Lee & Chan, 2007‎; ‎ Evans, 2008; Kennedy et al., 2011‎)‎  no one discussed the attitudes of Human Capital ‎towards Using it as an ‎Innovative Asynchronous training ‎and developing ‎tool. ‎ so this ‎paper aims to investigate these attitudes.‎ In order to do so,  The researcher investigated a field study taking a sample participants of 120 workers from the ‎studied companies and gave them a five-point Likert scale‎ questionnaire about their attitudes towards Using Podcasting in training. The data were analyzed using SPSS. It was found that ‎ participants ‎had a very positive attitude toward podcasts and had very high motivation to develop their skills with the help of podcasts.

scholarly journals Severe depression; psychotic symptoms in ages from 20 to 40 years

2018 ◽  
Vol 1 (1) ◽  
pp. 12-26
Author(s):  
Francisco Fabian Granados Romero ◽  
Karina Elizabeth Morales Villa
Keyword(s):  
Mental Health ◽  
Medical Records ◽  
Severe Depression ◽  
Psychomotor Retardation ◽  
Psychotic Symptoms ◽  
Observational Method ◽  
Cross Sectional ◽  
The Subject ◽  
The City ◽  
Very High

depression is identified as a mental health problem that comes with a very high risk of suicide, this work refers to the "severe depression; psychotic symptoms in ages from 20 to 40 years; In a study carried out in an ideal place for the subject to be treated, it is the same that corresponds to the study of the patients of the 2010-2015 period, the objective is to establish the psychotic characteristics in depression in patients from 20 to 40 years in the Institute of Neurosciences of the city of Guayaquil in the period 2010- 2015, through the analysis of medical records so that suicide can be prevented, whose compliance is followed with application of the methodology for quantitative-qualitative research, of a non-experimental design , cross-sectional, with an observational method to analyze medical records of the 182 patients that make up a population of 700 patients who are treated at the Institute of Neurosciences. The inclusion of the present psychotic symptoms of both sexes and in ages between 20 and 40 years was estimated. Highlighting the results that could be verified the hypothesis posed, to "Determine the characteristics of psychotic symptoms would allow working with patients with severe depression to prevent suicide. It was concluded that a greater presence of hallucinations such as psychotic symptoms and a depressed mood causes weight loss, insomnia, psychomotor retardation, feelings of worthlessness or guilt and recurring thoughts of death or suicidal ideation. What should be encouraged to society to commit to their contribution so that this problem is not increased.

Very High Resolution Analysis of the Dynamics of a Coronal Plasmoid

1994 ◽  
Vol 144 ◽  
pp. 593-596
Author(s):  
O. Bouchard ◽  
S. Koutchmy ◽  
L. November ◽  
J.-C. Vial ◽  
J. B. Zirker
Keyword(s):  
High Resolution ◽  
Solar Eclipse ◽  
Total Solar Eclipse ◽  
Field Of View ◽  
Small Field ◽  
High Resolution Analysis ◽  
Ccd Observations ◽  
Resolution Analysis ◽  
Very High ◽  
Small Field Of View

AbstractWe present the results of the analysis of a movie taken over a small field of view in the intermediate corona at a spatial resolution of 0.5“, a temporal resolution of 1 s and a spectral passband of 7 nm. These CCD observations were made at the prime focus of the 3.6 m aperture CFHT telescope during the 1991 total solar eclipse.

Monte Carlo Algorithms for Moments of Transition Arrays

1988 ◽  
Vol 102 ◽  
pp. 79-81
Author(s):  
A. Goldberg ◽  
S.D. Bloom
Keyword(s):  
Monte Carlo ◽  
State Vector ◽  
Basis Vector ◽  
Collective State ◽  
Dispersion Characteristics ◽  
Dipole Strength ◽  
The Third ◽  
Monte Carlo Algorithms ◽  
Third Moment ◽  
Very High

AbstractClosed expressions for the first, second, and (in some cases) the third moment of atomic transition arrays now exist. Recently a method has been developed for getting to very high moments (up to the 12th and beyond) in cases where a “collective” state-vector (i.e. a state-vector containing the entire electric dipole strength) can be created from each eigenstate in the parent configuration. Both of these approaches give exact results. Herein we describe astatistical(or Monte Carlo) approach which requires onlyonerepresentative state-vector |RV> for the entire parent manifold to get estimates of transition moments of high order. The representation is achieved through the random amplitudes associated with each basis vector making up |RV>. This also gives rise to the dispersion characterizing the method, which has been applied to a system (in the M shell) with≈250,000 lines where we have calculated up to the 5th moment. It turns out that the dispersion in the moments decreases with the size of the manifold, making its application to very big systems statistically advantageous. A discussion of the method and these dispersion characteristics will be presented.

Decomposition of the metastable beta titanium alloy Ti-15-3

1983 ◽  
Vol 41 ◽  
pp. 264-265
Author(s):  
Y. L. Chen ◽  
S. Fujlshiro
Keyword(s):  
Low Cost ◽  
High Strength ◽  
Alpha Phase ◽  
Thick Sheet ◽  
Omega Phase ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Beta Matrix ◽  
Metastable Beta ◽  
Very High

Metastable beta titanium alloys have been known to have numerous advantages such as cold formability, high strength, good fracture resistance, deep hardenability, and cost effectiveness. Very high strength is obtainable by precipitation of the hexagonal alpha phase in a bcc beta matrix in these alloys. Precipitation hardening in the metastable beta alloys may also result from the formation of transition phases such as omega phase. Ti-15-3 (Ti-15V- 3Cr-3Al-3Sn) has been developed recently by TIMET and USAF for low cost sheet metal applications. The purpose of the present study was to examine the aging characteristics in this alloy.The composition of the as-received material is: 14.7 V, 3.14 Cr, 3.05 Al, 2.26 Sn, and 0.145 Fe. The beta transus temperature as determined by optical metallographic method was about 770°C. Specimen coupons were prepared from a mill-annealed 1.2 mm thick sheet, and solution treated at 827°C for 2 hr in argon, then water quenched. Aging was also done in argon at temperatures ranging from 316 to 616°C for various times.

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