ON THE EPISODIC NATURE OF WET DEPOSITED SULPHATE AND ACIDITY

Author(s):  
D. FOWLER ◽  
J.N. CAPE
Keyword(s):  
Catalysts ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 315
Author(s):  
Robert S. Weber

Biomass could be a source of the redox shuttles that have shown promise for operation as high potential, organic electrolytes for redox flow batteries. There is a sufficient quantity of biomass to satisfy the growing demand to buffer the episodic nature of renewably produced electricity. However, despite a century of effort, it is still not evident how to use existing information from organic electrochemistry to design the electrocatalysts or supporting electrolytes that will confer the required activity, selectivity and longevity. In this research, the use of a fiducial reaction to normalize reaction rates is shown to fail.


2018 ◽  
Vol 34 (3) ◽  
pp. 161-167 ◽  
Author(s):  
Amy Armstrong-Javors ◽  
Kalpathy Krishnamoorthy

Headache and Neurologic Deficits with cerebrospinal fluid Lymphocytosis (HaNDL) syndrome is a rare stroke mimicker characterized by moderate to severe headache temporally associated with transient neurologic deficits, typically hemiparesis, hemisensory disturbance, and/or aphasia. Cerebrospinal fluid studies reveal a lymphocytosis and elevated protein. Episodes recur over a period no longer than 3 months. Here we describe the case of a 16-year-old boy who presented with 3 episodes of self-resolving neurologic deficits, papilledema on fundoscopic examination, and leptomeningeal enhancement on magnetic resonance imaging (MRI). We additionally review the 30 previously reported pediatric cases of HaNDL syndrome, with a focus on possible etiologic and pathophysiologic mechanisms of disease. The reported case and literature review highlight the benign episodic nature of this likely underrecognized syndrome as well as the higher than expected frequency of abnormal neuroimaging findings.


Author(s):  
Vitaliy Vasilev

Based on the available archaeological material, the article covers a number of issues related to the kurgans of nomads from the middle of the 1st millennium BC within the sub-mountain zone of the Bashkir Trans-Urals, embankments of which were built using stone. The author analyses the representativeness of archaeological records, provides typological and chronological attribution of the burial complexes. Previously these materials allowed to identify the “Irendyk-Kryktyn nomadic group” which existed in the considered landscape zone. According to the author, the investigated stone kurgans are divided into two groups. The first one might be dated back to the Saka Age (VII-VI centuries BC), the second one belongs to the Savromatian-Sarmatian period (not earlier that the mid of V-IV centuries BC). Within the existing chronology there is no explanation for the time gap between those periods. Hereby, this fact may indicate the presence of two culturally unrelated nomadic groups. The analysis of the archaeological material allows us to say that the signs of the burial rite, which are typical for the monuments of the foothill strip of the Bashkir Trans-Ural (Irendyk-Kryktyn group), are widespread far beyond this landscape zone, and are common for nomads who left stone kurgans in the steppe part of the region on both sides of the Ural Ridge. Furthermore, the author draws attention to the existing statement about the process of sedentarization of nomads of this region in the middle of the 1st millennium BC. The study of the source base on this issue shows that single finds of ceramic in “settlements” of nomads are their common locations. Settlement monuments in the mountainous Urals and steppe Trans-Urals, where few fragments of Kenotkel and Gafurian tableware were found, demonstrate the lack of dwellings, tools and remnants of handicraft production. This fact testifies to the temporary or episodic nature of the appearance of small groups of population at such monuments, and is not associated with nomads. Moreover, the sedentarization of nomads in the northern marginal zone is not confirmed by either historical or ethnographic sources. The article contains materials to supplement the archaeological records for studying issues related to stone kurgans.


2020 ◽  
pp. 13-31
Author(s):  
Roy K. Gibson

Modern biographies of ancient individuals focus on emperors and generals, as a form of political or military history. A biography of a ‘private’ individual like Pliny raises more urgently the question of the distorting effects of our biographical norms. Modern biography encourages the recreation of a ‘unique individual’, insight into the effects of childhood, or the reconstruction of a rich inner life. Approaches of this sort are not suited to Pliny: he was not interested in the ‘interiority’ found in Catullus or Augustine. Pliny’s individuality can be captured by working along the grain of the Letters: by focusing on the range of locales in which he lived, worked, and owned properties. No Roman writer, not even Vergil, ties his identity to the regions of Italy more successfully than Pliny. This approach is suited to the episodic nature both of Pliny’s own life and of the evidence available.


Author(s):  
Patricia Solomon ◽  
Kelly Kathleen O’Brien ◽  
Stephanie Nixon ◽  
Lori Letts ◽  
Larry Baxter ◽  
...  

People living with HIV may experience disability which is episodic in nature, characterized by periods of wellness and illness. The purpose of this longitudinal qualitative study was to understand how the episodic nature of HIV and the associated uncertainty shape the disability experience of older adults living with HIV over time. Fourteen men and 10 women who were HIV positive and over 50 years (mean age: 57 years; range: 50-73) participated in 4 interviews over 20 months. Longitudinal analyses of the transcribed interviews identified 4 phenotypes of episodic disability over time: decreasing, increasing, stable, or significant fluctuations. Although all participants experienced uncertainty, acceptance and optimism were hallmarks of those whose phenotypes were stable or improved over time. Understanding a person’s episodic trajectory may help to tailor interventions to promote stability, mitigate an upward trajectory of increasing disability, and increase the time between episodes of illness.


2010 ◽  
Vol 2010 ◽  
pp. 1-4 ◽  
Author(s):  
Brit Haver

Symptoms presenting as mental disorders may represent epileptic discharges, especially from the temporal lobe. Both mental and somatic symptoms are common in temporal lobe epilepsy, which may confuse doctors, leading to extensive medical examinations and tests, false diagnoses, and ineffective treatment. Also, the episodic nature and variety of symptoms between as well as in individual cases hinder correct diagnosis. Since epileptic discharges may be visible on EEG only during an epileptic fit—and may need highly specialized equipment to detect—many cases are undiagnosed or treated under false diagnoses. The author believes that undetected temporal lobe epilepsy falsely labelled as psychiatric disorders are common. Specific and effective treatment exists for temporal lobe epilepsy, making correct diagnosis important. This history—based on the author's personal experience—also illustrates aspects of the physician-patients' problems and resources, as well as the gap between somatic and psychiatric medicine concerning this rather common neuropsychiatric disorder.


Spine ◽  
2000 ◽  
Vol 25 (7) ◽  
pp. 834-841 ◽  
Author(s):  
Raymond W. McGorry ◽  
Barbara S. Webster BSPT ◽  
Stover H. Snook ◽  
Simon M. Hsiang

1982 ◽  
Vol 101 (3) ◽  
pp. 428-435 ◽  
Author(s):  
Dieter Ratge ◽  
Ernst Knoll ◽  
Ulrich Diener ◽  
Alexander Hadjidimos ◽  
Hermann Wisser

Abstract. Circadian rhythms of catecholamines, cortisol and prolactin were investigated in 4 healthy subjects and in 6 patients suffering from an apallic syndrome. The clinical picture of this syndrome is characterized by disturbed consciousness (coma vigile), suspension of the sleeping and waking rhythm, lack of emotional reactions and appearance of primitive motor patterns. With the exception of dopamine a pronounced circadian rhythm was found in the control group for all investigated parameters. Catecholamines and cortisol showed a good correlation in the temporal pattern of plasma concentrations and urinary excreted amounts. In all apallic patients the circadian rhythm of prolactin was abolished. Only in one patient a rhythm of catecholamines and in 2 patients a rhythm of cortisol was still detectable. The data may indicate that the episodic nature of hormone secretion was essentially unaffected by the apallic syndrome. These results are regarded as an indication that endogenous, centrally controlled processes participate in circadian rhythms.


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