Sökresultat

Filtyp

527862 sökträffar

Growth and production of buckwheat (Fagopyrum esculentum) treated with reduced, ambient, and enhanced UV-B radiation

The effect of enhanced UV-B radiation on buckwheat (Fagopyrum esculentum Moench. variety ‘Darja’), an important high elevation crop, was studied in order to estimate its vulnerability in changing UV-B environment. Plants were grown in outdoor experiments from July to October under reduced and ambient UV-B levels, and an UV-B level simulating 17% ozone depletion in Ljubljana. During the development

Modeling Carbon and Water Fluxes in European Terrestrial Ecosystems

The controlling mechanisms and feedbacks between climate, the carbon and water cycling and vegetation in European ecosystems have attracted much attention in recent years but they are still not sufficiently understood. A better understanding of them is necessary to predict how they will be affected by climate change. Process-based models of ecosystem structure and functioning provide a tool to s

Cell survival and clinical outcome following intrastriatal transplantation in Parkinson disease

Intrastriatal transplantation of embryonic dopaminergic neurons is currently explored as a restorative cell therapy for Parkinson disease (PD). Clinical results have varied, probably due to differences in transplantation methodology and patient selection. In this review, we assess clinical trials and autopsy findings in grafted PD patients and suggest that a minimum number of surviving dopaminergi

Om ojämlikhetens negativa värde – några anmärkningar

"Tidskrift för politisk filosofi" nr 2/2003 innehåller en kritisk granskning av Larry Temkins inflytelserika bok "Inequality" från 1993. Författarna, Ragnar Francén, Jonas Gren och Niklas Juth, underkastar Temkins komplexa, flerdimensionella form av egalitarism en noggrann undersökning. Deras kritiska synpunkter är väl värda läsarens uppmärksamhet.

Growth of GaP nanotree structures by sequential seeding of 1D nanowires

Complex nanostructures are becoming increasingly important for the development of nanoscale devices and functional nanomaterials. Precise control of size and morphology of these structures is critical to their fabrication and exploitation. We have developed a method for stepwise growth of tree-like nanostructures via the vapour liquid-solid (VLS) growth mode, demonstrated for III-V semiconductor m

INTEGRATION OF SIGNAL PATHWAYS FOR STRETCH-DEPENDENT GROWTH AND DIFFERENTIATION IN VASCULAR SMOOTH MUSCLE.

Vascular smooth muscle phenotype is regulated by environmental factors, such as mechanical forces, which exert effects on signaling to differentiation and growth. We used the mouse portal vein in organ culture to investigate stretch-dependent activation of Akt, extracellular regulated protein kinase (ERK) and focal adhesion kinase (FAK), which have been suggested to be involved in the regulation o

Östersjöområdet : Studier av interaktion och barriärer

Popular Abstract in Swedish Den dramatiska samhällsomvandlingen i Öst- och Centraleuropa 1989-91 förändrade radikalt förutsättningarna för Europas politiska och ekonomiska liv. Den politiska och militära uppdelningen upphörde, gamla stater föll sönder och nya tillkom. I vårt närområde, Östersjöområdet, har förändringarna varit mer genomgripande än på många andra håll. Interaktionen mellan områdetsThe geopolitical transformation after 1989 had radical territorial consequences in almost all parts of East-Central Europe. In the Baltic Sea Area alone, five new states were formed. The process of European integration became a priotity on the agenda. The concept of integration describes a process of uniting two or more entities. Interaction (flows of goods, people and messages) must be seen as a

Biocompatability of surfaces for antibody microarrays: Design of macroporous silicon substrates

Antibody microarray is a novel technology with great promise within proteomics. Intense work is under way to evolve this methodology into the high-throughput proteomic research tool needed by the research community. Despite recent advances, there is a growing need for additional highperformance substrates for antibody microarrays as well as for protein arrays in general. In this study, we have suc

An evaluation of methods for prioritizing software requirements

This article describes an evaluation of six different methods for prioritizing software requirements. Based on the quality requirements for a telephony system, the authors individually used all six methods on separate occasions to prioritize the requirements. The methods were then characterized according to a number of criteria from a user's perspective. We found the analytic hierarchy process to

The contralateral breast at reconstructive surgery after breast cancer operation--a histopathological study

The present study concerns 73 patients with known unilateral breast carcinoma. Thirty of the patients had a primary invasive carcinoma removed and at a later operation contralateral subcutaneous mastectomy with implantation of a prosthesis. This was performed with or without ipsilateral breast reconstruction. Forty-three of the cases had an in situ carcinoma found by local excision, whereafter bil

Long-term measurement of binaural intensity matches and pitch matches. I. Normal hearing.

Changes in pitch perception and hearing thresholds over time have been observed in subjects with monaural fluctuating low-frequency hearing loss and Ménière's disease. Long-term suprathreshold audiometry and binaural pitch matches could provide information of these changes. Ten normal subjects were tested for stability of binaural intensity and pitch matches during 9-22 days in their homes with ne

The effects of achieving hypothermia early in a heterogeneous population of patients with cardiac arrest.

In a recent article Wolff et al. (2009) [1] present highly interesting results bearing on how timing of therapeutic hypothermia might affect outcome. However, some of their analyses are unadjusted for heterogeneities in the patient population, while others indicate a statistical model break-down. Moreover, the time from cardiac arrest to return of spontaneous circulation is recorded but not includ

Human Retinal Development in an in situ Whole Eye Culture System.

Phenotypic characterization of human retinogenesis may be facilitated by use of the tissue culture system paradigm. Traditionally, most culture protocols involve isolation of retinal tissue and/or cells, imposing various degrees of trauma, which in many cases leads to abnormal development. In this paper, we present a novel culture technique using whole embryonic eyes to investigate whether the ret

Trust and health: testing the reverse causality hypothesis.

Social capital research has consistently shown positive associations between generalised trust and health outcomes over 2 decades. Longitudinal studies attempting to test causal relationships further support the theory that trust is an independent predictor of health. However, as the reverse causality hypothesis has yet to be empirically tested, a knowledge gap remains. The aim of this study, ther