International Union for the Study of Social Insects Report of Secretary-General Joan M. Herbers

Annual Report

International Union for the Study of Social Insects Report of Secretary-General Joan M. Herbers 2011 Annual Report     

International Union for the Study of Social Insects Report of Secretary-General Joan M. Herbers

Annual Report

International Union for the Study of Social Insects Report of Secretary-General Joan M. Herbers 2010 Annual Report     

Abstracts of 40th Annual Symposium of the Czech Society of Histochemistry and Cytochemistry

Conference Report

Abstracts of 40th Annual Symposium of the Czech Society of Histochemistry and Cytochemistry     

Abstracts of the Annual Symposium of the Czech Society of Histochemistry and Cytochemistry. Brno, Czech Republic, 1-2 December 2000

Abstract List

Abstracts of the Annual Symposium of the Czech Society of Histochemistry and Cytochemistry     

Difficulties in the ageing of the Herring Gull and Lesser Black-backed Gull

Annual Report Of The Edward Grey Institute

Report On The Nest Record Scheme, 1956, by J. F. Burton

Buzzard Survey, by N. W. Moore     

Our Planet,Our Health

Readers' corner

Our Planet, Our Health Report of the who commission on health and environment     

Abstracts of Papers Presented at the 32nd Annual Meeting of the Association for Applied Psychophysiology and Biofeedback

Abstract List

Abstracts of Papers Presented at the 32nd Annual Meeting of the Association for Applied Psychophysiology and Biofeedback     

Abstracts of Papers Presented at the 31st Annual Meeting of the Association for Applied Psychophysiology and Biofeedback

Abstract List

Abstracts of Papers Presented at the 31st Annual Meeting of the Association for Applied Psychophysiology and Biofeedback     

Abstracts of Communications of the 45th Annual Meeting of the Japanese Society for Neurochemistry

Abstract List

Abstracts of Communications of the 45^th Annual Meeting of the Japanese Society for Neurochemistry     

Commission on Genetic Resources for Food and Agriculture Working Group on Plant Genetic Resources for Food and Ggriculture Report on First Session of the Working Group Rome, July 2001 by Roger Hull

Meeting ReportFood and Agriculture Organization

Commission on Genetic Resources for Food and Agriculture Working Group on Plant Genetic Resources for Food and Ggriculture Report on First Session of the Working Group Rome, July 2001 by Roger Hull     

Critical issues in tumor microcirculation, angiogenesis and metastasis Fourth Annual Offering, Pittsburgh, PA, 5–9 June 1989

Course announcement

Critical issues in tumor microcirculation, angiogenesis and metastasis Fourth Annual Offering, Pittsburgh, PA, 5–9 June 1989     

Abstracts

Twenty-third Annual Conference on Yeasts Organized by the Commission on Yeasts of the Czechoslovak Society for Microbiology Smolenice (Slovak Republic) March 2–4, 1994

Abstracts     

Abstracts

Twenty-Eigth Annual Conference on Yeasts organized by the Commission on Yeasts of the Czechoslovak Society for Microbiology Smolenice (Slovakia) May 15–17, 2000

Abstracts     

<Emphasis Type="Bold">Report from the 33rd</Emphasis><Emphasis Type="BoldItalic">Mycotoxin-Workshop</Emphasis><Emphasis Type="Bold">(Freising,Germany)</Emphasis>

Society for Mycotoxin Research – News and Announcements 2011/II

Report from the 33rd Mycotoxin-Workshop (Freising, Germany)     

Variety specific relationships between effects of rhizobacteria on root exudation,growth and nutrient uptake of soybean

Aims

It has been increasingly recognized that only distal lower order roots turn over actively within the <2 mm fine root system of trees. This study aimed to estimate fine root production and turnover rate based on lower order fine roots and their relations to soil variables in mangroves.

Methods

We conducted sequential coring in five natural mangrove forests at Dongzhai Bay, China. Annual fine root production and turnover rate were calculated based on the seasonal variations of the biomass and necromass of lower order roots or the whole fine root system.

Results

Annual fine root production and turnover rate ranged between 571 and 2838 g m^?2 and 1.46–5.96 yr^?1, respectively, estimated with lower order roots, and they were increased by 0–30 % and reduced by 13–48 %, respectively, estimated with the whole fine root system. Annual fine root production was 1–3.5 times higher than aboveground litter production and was positively related to soil carbon, nitrogen and phosphorus concentrations. Fine root turnover rate was negatively related to soil salinity.

Conclusions

Mangrove fine root turnover plays a more important role than aboveground litter production in soil C accumulation. Sites with higher soil nutrients and lower salinity favor fine root production and turnover, and thus favor soil C accumulation.

     

Skeletal muscle [(V)\dot]O2 \dot V_{O_2 } in rat and lemming: Effect of blood flow rate

Summary The rate of oxygen consumption ( ) by skeletal muscle was investigated in isolated perfused hindlimbs of laboratory rats and lemmings (Lemmus). In both species, increased in proportion to blood flow rate, even at flow rates 4–5 times above resting level. The slope of the line relating to skeletal muscle blood flow was significantly greater in the lemming than in the rat. This may be related to the inverse relationship between body weight and metabolic rate. These data support the hypothesis that in small animals a dependent relationship exists between blood flow and skeletal muscle .     

Origins of molecular biology

This essay is reprinted from the 1988 Annual Report of the Department of Microbiology of the Biozentrum of Basel University with the kind permission of Professor Edward Kellenberger.     

Photochemical internalization (PCI) of HER2-targeted toxins: Synergy is dependent on the treatment sequence

Background

Photochemical internalization (PCI) is a modality for cytosolic release of drugs trapped in endocytic vesicles. The method is based upon photosensitizers localized in the membranes of endocytic vesicles which create membrane rupture upon light exposure by generating reactive oxygen species (ROS), predominantly singlet oxygen (¹O₂).

Methods

The human epidermal growth factor receptor 2 (HER2)-targeted immunotoxin (IT), trastuzumab–saporin, was evaluated in combination with PCI using TPCS_2a (Amphinex®), a new photosensitizer approved for clinical use.

Results

PCI synergistically enhanced the cytotoxicity of trastuzumab–saporin on trastuzumab-resistant HER2⁺ Zr-75-1 cells. The PCI effect was only observed when the IT was administered prior to the photochemical treatment (“light after” strategy), while administration of a non-targeted drug may equally well be performed after light exposure. Mechanistic studies showed reduced ligand-induced HER2 phosphorylation and receptor-mediated endocytosis after TPCS_2a-PDT. Photochemical disruption of the cytoplasmic domain of HER2 was found to be induced by ¹O₂ generated both by photosensitizer located in the endocytic vesicles and in the outer leaflet of the plasma membrane.

Conclusions

Administration of the HER2-targeted toxin prior to light exposure is a prerequisite for successful PCI-mediated delivery of HER2-targeted toxins.

General significance

PCI of HER2-targeted toxins is demonstrated as a highly effective treatment modality which may overcome trastuzumab resistance. The mechanistic studies of the lack of PCI effect of the “light first” procedure is of outermost importance when designing a clinical PCI treatment protocol for delivery of HER2-targeted therapies.     

Soil CO2 efflux in a bioenergy plantation with fast-growing Populus trees – influence of former land use, inter-row spacing and genotype

Aims

In this study we quantified the annual soil CO₂ efflux (annual SCE) of a short rotation coppice plantation in its establishment phase. We aimed to examine the effect of former (agricultural) land use type, inter-row spacing and genotype.

Methods

Annual SCE was quantified during the second growth year of the establishment rotation in a large scale poplar plantation in Flanders. Automated chambers were distributed over the two former land use types, the two different inter-row spacings and under two poplar genotypes. Additional measurements of C, N, P, K, Mg, Ca and Na concentrations of the soil, pH, bulk density, fine root biomass, microbial biomass C, soil mineralization rate, distance to trees and tree diameters were performed at the end of the second growth year.

Results

Total carbon loss from soil CO₂ efflux was valued at 589 g m^?2 yr^?1. Annual SCE was higher in former pasture as compared to cropland, higher in the narrow than in the wider inter-row spacings, but no effect of genotype was found.

Conclusions

Spatial differences in site characteristics are of great importance for understanding the effect of ecosystem management and land use change on soil respiration processes and need to be taken into account in modeling efforts of the carbon balance.