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Interband transitions in InAs quantum dots in InP studied by photoconductivity and photoluminescence techniques
We report on a detailed investigation of the interband optics of self-assembled InAs dots embedded in a matrix of InP. In photoconductivity (PC) measurements, we observe optical processes related to the dots and a wetting layer, band-to-band excitation of the InP barrier, as well as to an interesting As-related impurity. In particular, the PC measurements reveal the electronic structure of the dot
Comparison of gene expression in trap cells and vegetative hyphae of the nematophagous fungus Monacrosporium haptotylum
Nematode-trapping fungi enter the parasitic stage by developing specific morphological structures called traps. The global patterns of gene expression in traps and mycelium of the fungus Monacrosporium haptotylum were compared. The trap of this fungus is a unicellular spherical structure called the knob, which develops on the apex of a hyphal branch. RNA was isolated from knobs and mycelium and hy
Loss of bHLH transcription factor E2A activity in primary effusion lymphoma confers resistance to apoptosis
Similar to classical Hodgkin lymphoma (HL) tumour cells, primary effusion lymphoma (PEL) originates from mature B cells but displays a non-B cell phenotype, the mechanisms and consequences of which are not yet understood. This study showed that PEL lacked DNA binding activity of the B cell-determining transcription factors E2A, EBF and Pax5. PEL overexpressed the E2A antagonists ABF-1 and Id2, whi
Efficient Anaerobic Whole Cell Stereoselective Bioreduction with Recombinant Saccharomyces cerevisiae.
In this study we investigate the NADPH-dependent stereoselective reduction of the bicyclic diketone bicyclo[2.2.2]octane-2,6-dione (BCO2,6D) to the chiral ketoalcohol (1R,4S,6S)-6-hydroxybicyclo[2.2.2]octane-2-one (BCO2one6ol). Our aim was to develop a whole cell batch process for reduction of carbonyl substrates with (i) a high cosubstrate yield (formed product/consumed cosubstrate) and (ii) a hi
Press perturbation experiments and the indeterminacy of ecological interactions: effects of taxonomic resolution and experimental duration
The outcomes of press perturbation experiments on community dynamics are difficult to predict because there is a high degree of indeterminacy in the strength and direction of ecological interactions. Ecologists need to quantify uncertainties in estimates of interaction strength, by determining all the possible values a given interaction strength could take and the relative likelihood of each value
Transplacental passage of isradipine in the treatment of pregnancy-induced hypertension
The aim of this study was to assess the concentration of isradipine in maternal and fetal plasma, and in amniotic fluid under steady-state conditions. Eight women were treated with 5-mg isradipine tablets twice daily and eight women were given slow-release isradipine capsules (SRO) twice daily for hypertension in pregnancy. Blood and amniotic fluid sampling for analysis of drug concentration was p
Spatio-temporal impact of climate change on the activity and voltinism of the spruce bark beetle, Ips typographus
The spruce bark beetle Ips typographus is one of the major insect pests of mature Norway spruce forests. In this study, a model describing the temperature-dependent thresholds for swarming activity and temperature requirement for development from egg to adult was driven by transient regional climate scenario data for Sweden, covering the period of 1961-2100 for three future climate change scenario
An Integer-Valued Time Series Model for Hotels that Accounts for Constrained Capacity
Comparative performance of a UASB reactor and an anaerobic packed-bed reactor when treating potato waste leachate
The results presented in this paper are from studies on a laboratory-scale upflow anaerobic sludge blanket (UASB) reactor and an anaerobic packed-bed (APB) reactor treating potato leachate at increasing organic loading rates from 1.5 to 7.0 9 COD/ l/day. The hydraulic retention times ranged from 13.2 to 2.8 days for both reactors during the 100 days of the experiment. The maximum organic loading r
Preparation of molecularly imprinted polymers using anacardic acid monomers derived from cashew nut shell liquid
The objective of this work was to use monomers from cashew (Anacardium occidentale L.) nut shells to develop molecularly imprinted polymers. Cashew nut shell liquid (CNSL) is a cheap and renewable agro byproduct consisting of versatile monomers. Solvent-extracted CNSL contains over 80% anacardic acid (AnAc) with more than 90% degree of unsaturation in its C-15 side chain. From AnAc monomer, anacar
Improved microscopical diagnosis of pulmonary tuberculosis in developing countries
The diagnosis of pulmonary tuberculosis (TB) relies on the bacteriological examination of sputum. However, microscopy of smears made directly from sputum has a low sensitivity and there is an urgent need for improved methods. We have compared microscopy of smears made directly from sputum with microscopy after liquefaction of sputum with household bleach (NaOCl) and concentration of bacteria by ce
The status of human nuclear transfer
Human therapeutic cloning is a recently emerged application of somatic cell nuclear transfer (SCNT), which is currently being performed to produce patient-specific stem cell lines for future stem cell therapies. The advantages in producing human nuclear transfer (NT) embryos to derive NT stem cell lines are that these can be tailor-made (i.e., are autologous in nature) for the patient and may over
First World Congress Meeting on OncoProteomics - April 27-28, 2006, CA, USA
Quantum computing with an inhomogeneously broadened ensemble of ions: Suppression of errors from detuning variations by specially adapted pulses and coherent population trapping
The proposal for quantum computing with rare-earth-metal-ion qubits in inorganic crystals makes use of the inhomogeneous broadening of optical transitions in the ions to associate individual qubits with ions responding to radiation in selected frequency channels. We show that a class of Gaussian composite pulses and complex sech pulses provide accurate qubit pi rotations, which are at the same tim
Foraging behaviour and capture success in perch, pikeperch and pike and the effects of prey density
The effect of school size on capture success in three different piscivores, perch Perca fluviatilis, pikeperch Stizostedion lucioperca and pike Esox lucius, was investigated. Roach Rutilus rutilus were used as prey in a pool experiment where individual predators were presented prey at densities of one, two, four, eight and 16 prey, respectively. Treatments were replicated seven times for each pred
Identifying M supergiants with Gaia
As a group of stars having high luminosity and thus being able to be detected to great distances, massive M supergiants are extremely helpful to the study of the kinematics of the Milky Way. They are also partly responsible for the creation of post iron-group elements through the weak s-process of nucleosynthesis. As there are relatively few classified M supergiants, owing to their rapid pace of e
2002 Albert Renold Career Development Award of the European Foundation for the Study of Diabetes
Determination of both the time constant of vO and DeltavO/DeltaW from a single incremental exercise test: validation and repeatability.
A single incremental cycle exercise test including a steady-state load, combined with respiratory gas exchange, was performed with the objective of determining the time constant (o2) and the amount of oxygen required at each load (o2/DeltaW) by using a novel equation. The protocol was validated using four exercise tests at different constant loads and conventionally fitted mono-exponential functio
Taxonomic review of Eurasian Paradelia Ringdahl (Diptera : Anthomyiidae) with descriptions of two new species
Paradelia Ringdahl is a modest-sized, anthomyiid genus found in cool-temperate to arctic situations in northern and elevated parts of Eurasia and North America. A high percentage of the known Eurasian species are more widespread, Holarctic in distribution. The monophyly of the genus is well supported, though it is less easy to place unambiguously in a phylogeny. Most species are rarely collected a
