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Effect Of Low Pulsed Microwaves On Heart Rate Variability Signals In Mammals, Ahmed Kamal

Neurosciences

OBJECTIVE: The main objective of this work is to study the effect of low pulsed microwaves on the heart rate variability signals derived from electrocardiogram signals of ten cats irradiated with pulsed microwaves with 5.655GHz. METHODS: Electrocardiograms of ten anaesthetized cats were measured and recorded using implanted electrodes before microwave exposure. Rectangular pulses at 5.655GHz, 2 w peak, 5.5us wide and repetition rate 2 Hz were applied to the brain of cats through horns and wave guides for 20 minutes, followed by a 20 minute recovery period after exposure. RESULTS: The results clearly indicate that the pulsed microwaves radiation induced …

Method For Theory: A Prelude To Human Ecosystems, H. E. Kuchka

Journal of Ecological Anthropology

This special issue of the Journal of Ecological Anthropology is devoted to an exploratory essay on developing theoretical methodology in the study of human ecosystems. It is motivated by dissatisfaction with both the understanding and practice of theory building presently available in ecological anthropology. The authors integrate an expansive approach to method-for-theory by drawing on the framework of Pickett, Kolasa and Jones (Ecological Understanding, 1994). The authors of this two-part essay are identified as H.E. Kuchka. H.E. is the abbreviation for Human Ecosystems. Kuchka is the group: Felice S. Wyndham, Eric C. Jones, Mitchell A Pavo-Zuckerman, Suzanne E. Joseph, Rebecca …

Intro Matter

Journal of Ecological Anthropology

No abstract provided.

Site 1169, Shipboard Scientific Party, Amelia E. Shevenell

Marine Science Faculty Publications

No abstract provided.

Leg 189 Summary, Shipboard Scientific Party, Amelia E. Shevenell

Marine Science Faculty Publications

The Cenozoic Era is unusual in its development of major ice sheets. Progressive high-latitude cooling during the Cenozoic eventually formed major ice sheets, initially on Antarctica and later in the Northern Hemisphere. In the early 1970s, a hypothesis was proposed that climatic cooling and an Antarctic cryosphere developed as the Antarctic Circumpolar Current progressively thermally isolated the Antarctic continent. This current resulted from the opening of the Tasmanian Gateway south of Tasmania during the Paleogene and the Drake Passage during the earliest Neogene.

The five Leg 189 drill sites, in 2463 to 3568 m water depths, tested, refined, and extended …

Site 1171, Shipboard Scientific Party, Amelia E. Shevenell

Marine Science Faculty Publications

No abstract provided.

Evidence For A Partially Folded Intermediate In Α-Synuclein Fibril Formation, Vladimir N. Uversky, Jie Li, Anthony L. Fink

Molecular Medicine Faculty Publications

Intracellular proteinaceous aggregates (Lewy bodies and Lewy neurites) of α-synuclein are hallmarks of neurodegenerative diseases such as Parkinson's disease, dementia with Lewy bodies, and multiple systemic atrophy. However, the molecular mechanisms underlying α-synuclein aggregation into such filamentous inclusions remain unknown. An intriguing aspect of this problem is that α-synuclein is a natively unfolded protein, with little or no ordered structure under physiological conditions. This raises the question of how an essentially disordered protein is transformed into highly organized fibrils. In the search for an answer to this question, we have investigated the effects of pH and temperature on the structural …

Is Congo Red An Amyloid-Specific Dye?, Ritu Khurana, Vladimir N. Uversky, Liza Nielsen, Anthony L. Fink

Molecular Medicine Faculty Publications

Congo red (CR) binding, monitored by characteristic yellow-green birefringence under crossed polarization has been used as a diagnostic test for the presence of amyloid in tissue sections for several decades. This assay is also widely used for the characterization of in vitro amyloid fibrils. In order to probe the structural specificity of Congo red binding to amyloid fibrils we have used an induced circular dichroism (CD) assay. Amyloid fibrils from insulin and the variable domain of Ig light chain demonstrate induced CD spectra upon binding to Congo red. Surprisingly, the native conformations of insulin and Ig light chain also induced …

Metal-Triggered Structural Transformations, Aggregation, And Fibrillation Of Human Α-Synuclein: A Possible Molecular Link Between Parkinson′S Disease And Heavy Metal Exposure, Vladimir N. Uversky, Jie Li, Anthony L. Fink

Molecular Medicine Faculty Publications

Parkinson's disease involves the aggregation of α-synuclein to form fibrils, which are the major constituent of intracellular protein inclusions (Lewy bodies and Lewy neurites) in dopaminergic neurons of the substantia nigra. Occupational exposure to specific metals, especially manganese, copper, lead, iron, mercury, zinc, aluminum, appears to be a risk factor for Parkinson's disease based on epidemiological studies. Elevated levels of several of these metals have also been reported in the substantia nigra of Parkinson's disease subjects. We examined the effect of various metals on the kinetics of fibrillation of recombinant α-synuclein and in inducing conformational changes, as monitored by biophysical …

Contents, Studies In Avian Biology

Studies in Avian Biology

No abstract provided.

List Of Authors, Studies In Avian Biology

Studies in Avian Biology

No abstract provided.

Introduction, J. Michael Scott, Sheila Conant, Charles Van Riper Iii

Studies in Avian Biology

No abstract provided.

Historical Perspectives: Introduction, Charles Van Riper Iii, Sheila Conant, J. Michael Scott

Studies in Avian Biology

No abstract provided.

How Many Bird Species In Hawai'i And The Central Pacific Before First Contact, John Curnutt, Stuart Pimm

Studies in Avian Biology

No abstract provided.

Patterns Of Success Among Introduced Birds In The Hawaiian Islands, Michael P. Moulton, Kari E. Miller, Eric A. Tillman

Studies in Avian Biology

No abstract provided.

Systematics: Introduction, Helen F. James

Studies in Avian Biology

No abstract provided.

Evolutionary Relationships And Conservation Of The Hawaiian Anatids, Judith M. Rhymer

Studies in Avian Biology

No abstract provided.

Why The Hawai'i Creeper Is An Oreomystis: What Phenotypic Characters Reveal About The Phylogeny Of Hawaiian Honeycreepers, H. Douglas Pratt

Studies in Avian Biology

No abstract provided.

Phylogenetic Placement Of The Po'ouli, Melamprosops Phaeosoma, Based On Mitochondrial Dna Sequence And Osteological Characters, Robert C. Fleischer, Cheryl L. Tarr, Helen F. James, Beth Slikas, Carl E. Mcintosh

Studies in Avian Biology

No abstract provided.

Status And Trends: Introduction, J. Michael Scott, Charles Van Riper Iii

Studies in Avian Biology

No abstract provided.

Migration Of Northern Pintail Across The Pacific With Reference To The Hawaiian Islands, Miklos D. F. Udvardy, Andrew Engillis Jr.

Studies in Avian Biology

No abstract provided.

The Status And Population Trends Of The Newell's Shearwater On Kaua'i: Insights From Modeling, David G. Ainley, Richard Podolsky, Leah Deforest, Gregory Spencer, Nadav Nur

Studies in Avian Biology

No abstract provided.

The Hawai'i Rare Bird Search 1994-1996, Michelle H. Reynolds, Thomas J. Snetsinger

Studies in Avian Biology

No abstract provided.

Status And Distribution Of The Po'ouli In The Hanawi Natural Area Reserve Between December 1995 And June 1997, Paul E. Baker

Studies in Avian Biology

No abstract provided.

Ecology: Introduction, Sheila Conant

Studies in Avian Biology

No abstract provided.

Significance Of Old-Growth Forest To The Hawai'i Akepa, Leonard A. Freed

Studies in Avian Biology

No abstract provided.

The Evolution Of Passerine Life Histories On Oceanic Islands, And Its Implications For The Dynamics Of Population Decline And Recovery, Bertram G. Murray Jr.

Studies in Avian Biology

No abstract provided.

What Caused The Population Decline Of The Bridled White-Eye On Rota, Mariana Islands?, Steven G. Fancy, Thomas J. Snetsinger

Studies in Avian Biology

No abstract provided.

Recovery And Management: Introduction, J. Michael Scott, Sheila Conant

Studies in Avian Biology

No abstract provided.

Immunogenetics And Resistance To Avian Malaria In Hawaiian Honeycreepers Drepanidinae, Susan I. Jarvi, Carter T. Atkinson, Robert C. Fleischer

Studies in Avian Biology

No abstract provided.