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Fluorescence detection and assessment on tryptophan content of naked oat varieties in China

The experiment aims to assess the tryptophan content of main cultivars of naked oat in China, and analyze the correlation between contents of tryptophan and protein. Oat flour was hydrolysed with papain, the fluorescence intensity of hydrolysate was detected at excitation wavelength of 288 nm and emission wavelength of 352 nm, and finally the tryptophan content was quantitated according to standar

Towards New Generation of Hemoglobin-Based Blood Substitutes

Blood transfusion is a clinically significant and crucial process, which saves millions of lives every year. However,shortage of donated blood and the risk of virus transmission through transfusible blood seriously affect theavailability of the blood. Hemoglobin (Hb), owing to its oxygen carrying capacity, has been studied as a startingmaterial for the development of artificial blood substitutes/H

Exploring Yeast as a Cell Factory for the Production of Carboxylic Acids and Derivatives

Baker’s yeast, Saccharomyces cerevisiae, is a promising cell factory for the sustainable utilization of renewable resources for the formation of products with commercial value. Among these, poly-3-D-hydroxybutyrate (PHB) is an extensively studied biopolymer naturally accumulated in some bacteria and archaea species through the formation of carbon granules. Its bio-based origin, biodegradability an

A Service Oriented Perspective of Enterprise Resource Planning Systems

This paper brings forward a service oriented perspective, based on practical experiences from designing information systems (IS) as services. Viewing IS as services are beneficial but still an unexplored approach in organizations. In this paper, we present an analysis of Enterprise Resource Planning (ERPs) systems through the perspective of Service Oriented Architecture (SOA). This paper contribut

Scaling Nonlinear Optics in Gases

Extrapolating nonlinear phenomena, such as filamentation, to new parameters as e.g. to higher pulse energy is often challenging. We here present a general scaling model for nonlinear light-matter interactions in gases and proof it experimentally.

Heat Loss for a Run-Around Hybrid Ventilation System with Heat Recovery

The heat recovery system for ventilation is of major importance when low energy buildings are built. One alternative to the mechanical ventilation systems with heat recovery is to use a brine based run-around system that allows for heat recovery in for instance hybrid ventilated buildings. This type of heat recovery system has the potential to lower the need for electricity for the fans. Also, theThe heat recovery system for ventilation is of major importance when low energy buildings are built. One alternative to the mechanical ventilation systems with heat recovery is to use a brine based run-around system that allows for heat recovery in for instance hybrid ventilated buildings. This type of heat recovery system has the potential to lower the need for electricity for the fans. Also, the

Exposure to inorganic arsenic and gene expression in peripheral blood

Arsenic is an established carcinogen and a risk factor for several non-malignant diseases. Mechanisms of arsenic toxicity may include interference with gene expression. The impact of arsenic exposure on gene expression was evaluated in women (n = 80) living in the Puna of the northern Argentinian Andes with varying concentrations (10–1251 μg/L) of arsenic in drinking water. DirectHyb HumanHT-12 v4

Heat Transfer in Diesel and Partially Premixed Combustion Engines; A Computational Fluid Dynamics Study

This article presents findings from a Computational Fluid Dynamics (CFD) study performed on the heat transfer characteristics of diesel and partially-premixed combustion (PPC) engines. The study is confined to the combustion bowl, where numerical simulations have been performed on a part of the engine cycle, namely the compression, combustion, and expansion phases. Three engine geometries were sim

Group-Sparse Regression Using the Covariance Fitting Criterion

In this work, we present a novel formulation for efficient estimation of group-sparse regression problems. By relaxing a covariance fitting criteria commonly used in array signal processing, we derive a generalization of the recent SPICE method for grouped variables. Such a formulation circumvents cumbersome model order estimation, while being inherently hyperparameter-free. We derive an implement

Exposure to inorganic arsenic and mitochondrial DNA copy number and telomere length in peripheral blood

Exposure to inorganic arsenic (iAs) is a risk factor for cancer. Alterations in mitochondrial DNA copy number (mtDNAcn) and telomere length (TL) have been associated with cancer risk. Two Argentinean groups were studied: A) Puna area of Andes and B) Chaco. Arsenic exposure was assessed as the sum of arsenic metabolites (iAs, MMA, and DMA) in urine (U-As) using HPLC-HG-ICPMS. MtDNAcn, TL, and genot

Looking is buying. How visual attention and choice are affected by consumer preferences and properties of the supermarket shelf

There is a battle in the supermarket isle, a battle between what the consumer wants and what the retailer and others want her to see, and subsequently to buy. Product packages and displays contain a number of features and attributes tailored to catch consumers' attention. These are what we call external factors comprising the visual saliency, the number of facings, and the placement of each produc

Arsenic adsorption by iron-aluminium hydroxide coated onto macroporous supports : Insights from x-ray absorption spectroscopy and comparison with granular ferric hydroxides

The arsenic adsorption characteristics of a macroporous polymer coated with coprecipi-tated iron-aluminium hydroxides (MHCMP) is evaluated in this study. The MHCMP had a maximum adsorption capacity of 82.3 and 49.6 mg As/g adsorbent for As(III) and As(V) ions respectively. Extended X-ray Absorption Fine Structure (EXAFS) confirmed that binding of As(III) ions took place on the iron hydroxides coat

CEO power and matching leverage preferences

We study the effect of managerial power on CEOs' tendency to imprint their personal leverage preferences upon the firms they manage. Using a unique data source that allows us to measure personal wealth and indebtness in great detail, we find a connection between CEOs' personal leverage and that of their firms. The connection is driven by the CEOs with a longer tenure and the CEOs who serve in a du

Planting to feed the city? : Agricultural production, food security and multi-spatial livelihoods among urban households in Ghana

The 2010 population and housing census in Ghana revealed that more than half of the Ghanaian population lived in urban centers. Critical to the phenomenon of urbanization is the question of how to sustainably feed the urban population especially the urban poor as rapid urbanization has the tendency to urbanize poverty. This has led to renewed policy debate about the implications of farming in citi