Optic neuritis in pediatric population: A review in current tendencies of diagnosis and management

Optic neuritis is an inflammation of the optic nerve and may be related to different systemic conditions. The clinical presentation of this pathology usually includes sudden loss of visual acuity (VA) which may be unilateral or bilateral, visual field restriction, pain with eye movements, dyschromatopsia, a relative afferent pupillary defect and optic disk swelling. Optic neuritis in children has specific clinical features and a better prognosis than in adulthood. Although usually appears an underlying viral disease, the main concern for practitioners is the relationship of optic neuritis with multiple sclerosis. In addition to the classical techniques as magnetic resonance imaging (MRI), current tendencies of diagnosis for eye practitioners include new imaging devices as optical coherence tomography (OCT), useful to show a thinning of the retinal fibers layer (RFL) after the inflammatory episode. Regarding the management of these patients, short-term intravenous steroid dosages seem to be the best option to treat acute attacks characterized by a very poor bilateral VA.

Evidence for non-conservative current-induced forces in the breaking of Au and Pt atomic chains

This experimental work aims at probing current-induced forces at the atomic scale. Specifically it addresses predictions in recent work regarding the appearance of run-away modes as a result of a combined effect of the non-conservative wind force and a ‘Berry force’. The systems we consider here are atomic chains of Au and Pt atoms, for which we investigate the distribution of break down voltage values. We observe two distinct modes of breaking for Au atomic chains. The breaking at high voltage appears to behave as expected for regular break down by thermal excitation due to Joule heating. However, there is a low-voltage breaking mode that has characteristics expected for the mechanism of current-induced forces. Although a full comparison would require more detailed information on the individual atomic configurations, the systems we consider are very similar to those considered in recent model calculations and the comparison between experiment and theory is very encouraging for the interpretation we propose.

Inter Latin American trade: Current problems.

Mode of access: Internet.

Descriptive and classified missionary centenary catalogue of current Christian literature : 1907 continuing that of 1901 (Wen-li and Mandarin) /

"A continuation of the labors of Mr. Alexander Kenmure ... and of the still earlier work of Dr. Alexander Wylie."--Pref.

Digest of state alcohol-highway safety related legislation. Current as of January 1, 1995. Thirteenth edition.

Mode of access: Internet.

Digest of state alcohol-highway safety related legislation. Current as of January 1, 1996. Fourteenth edition.

Mode of access: Internet.

Agricultural development of Panama; analysis of current problems and recommendations for a program.

Cover title.

Spanish-English bilingual education in the U.S. : current issues, resources, and research priorities /

"An investigation commissioned by the National Institute of Education...completed in 1974."

Characteristics of households and persons receiving noncash benefits, 1979 : preliminary data from the March 1980 Current Population Survey.

Mode of access: Internet.

Nonimmigrant workers in the U.S. : current trends and future implications /

Includes bibliographies.

Hazardous waste sites : descriptions of sites on current National Priorities List, October 1984.

Mode of access: Internet.

Bilingual education : a focus on current research /

"Spring 1991"--Cover.

Boom configuration tests for calm-water, medium-current oil spill diversion /

Mode of access: Internet.

Electric current abroad.

Shipping list no.: 91-609-P.

Nuclear reactor options to reduce the risk of proliferation and to succeed current light water reactor technology : report to the Congress /

"B-164105."