ERTS image data compression technique evaluation

There are no author-identified significant results in this report

Influence of Dilute Acetic Acid Treatments on American Pondweed Winter Buds in the Nevada Irrigation District, California

American pondweed ( Potamogeton nodosus Poir.) is commonly found in northern California irrigation canals. The purpose of this study was to test the hypothesis that exposure of American pondweed winter buds to dilute acetic acid under field conditions would result in reduced subsequent biomass

Assessing larval connectivity for marine spatial planning in the Adriatic

publisher: Elsevier articletitle: Assessing larval connectivity for marine spatial planning in the Adriatic journaltitle: Marine Environmental Research articlelink: http://dx.doi.org/10.1016/j.marenvres.2017.01.006 content_type: article copyright: © 2017 Elsevier Ltd. All rights reserved

Quantitative infrared spectroscopy of minor constituents of the Earth's atmosphere

We obtain quantitative laboratory spectroscopic measurements of molecular constituents which are of importance in understanding the health of the Earth's atmosphere, and, in particular, emphasize those species which are important for understanding stratospheric kinetics or are used for long term monitoring of the stratosphere. Our measurements provide: (1) line and band intensity values which are needed to establish limits of detectability for as yet unobserved species and to quantify the abundance of those species which are observed; (2) line-positions, -half widths and pressure induced shifts are all needed for remote sensing techniques, and (3) data on the above basic molecular parameters at temperatures and pressures appropriate for the real atmosphere

ECHO user's guide

There are no author-identified significant results in this report

Kaposi's sarcoma in renal transplant recipients: Experience at Johannesburg Hospital, 1966 - 1989

Between August 1966 and December 1989, 989 renal transplant recipients were followed up at the Renal Transplant Unit of Johannesburg Hospital. Seventy-five (7%) patients developed a total of 95 malignancies of which 5 (6%) were Kaposi's sarcoma. All patients received immunosuppressive agents; steroids, azathioprine and/or cyclosporin A. Clinical presentations included both limited skin involvement (1 patient) and disseminated forms of the disease: necrotic oral lesions (1 patient); disseminated skin involvement and lung metastases (1 patient); and widespread skin lesions with lymphadenopathy (2 patients). Four patients responded with complete tumour regression at all sites upon withdrawal of the immunosuppressive drugs. One patient suffered disease progression, and immunosuppression was continued, albeit at reduced dosages. These cases illustrate a relatively rare complication of immunosuppressive therapy. However, complete withdrawal of iInmunosuppressive drugs may result in sustained complete regression, despite the presence of advanced KS

Magnetically-controlled velocity selection in a cold atom sample using stimulated Raman transitions

We observe velocity-selective two-photon resonances in a cold atom cloud in the presence of a magnetic field. We use these resonances to demonstrate a simple magnetometer with sub-mG resolution. The technique is particularly useful for zeroing the magnetic field and does not require any additional laser frequencies than are already used for standard magneto-optical traps. We verify the effects using Faraday rotation spectroscopy.Comment: 5 pages, 6 figure

Dielectric characterization of Plasmodium falciparum infected red blood cells using microfluidic impedance cytometry

Although malaria is the world’s most life-threatening parasitic disease, there is no clear understanding of how certain biophysical properties of infected cells change during the malaria infection cycle. In this article, we use microfluidic impedance cytometry to measure the dielectric properties of Plasmodium falciparum-infected red blood cells (i-RBCs) at specific time-points during the infection cycle. Individual parasites were identified within i-RBCs using Green Fluorescent Protein (GFP) emission. The dielectric properties of cell sub-populations were determined using the multi-shell model. Analysis showed that the membrane capacitance and cytoplasmic conductivity of i-RBCs increased along the infection time-course, due to membrane alterations caused by parasite infection. The volume ratio occupied by the parasite was estimated to vary from <10% at earlier stages, to ~90% at later stages. This knowledge could be used to develop new label-free cell sorting techniques for sample pre-enrichment, improving diagnosis