Search results for "Spar"
showing 10 items of 1739 documents
Association of elevated vitamin B12 with oncohematological diseases in a cohort of 79,524 patients from Latvia
2019
Aim Currently there are some large-scale studies of elevated total vitamin B12 in relation to diseases and their prognosis. Aim of this retrospective study was to determine association of increased B12 as an additional diagnostic marker of oncohematological diseases by a statistical analysis of clinical data of 79,524 patients. Materials and methods Overall Latvian population representative data on B12 testing in 79,524 patients were obtained from laboratory database. The following exclusion criteria were applied: fluctuating B12 results within a three-month period, elevated (> 100 U/L) alanine transaminase or aspartate transaminase, hepatitis (HAV, HBV, and HCV) infection, reduced glomerul…
High-contrast dark resonances on the D1 line in cesium nanocell: the advantages compared with the other alkali D lines
2015
Electromagnetically induced transparency (EIT) effect in a -system formed by Cs atoms line, enclosed in nanometric-thin cells, is studied both experimentally and theoretically for the first time. T...
Optimization of ZnO:Al/Ag/ZnO:Al structures for ultra-thin high-performance transparent conductive electrodes
2012
Al-doped ZnO (AZO)/Ag/AZO multilayer coatings (50-70 nm thick) were grown at room temperature on glass substrates with different silver layer thickness, from 3 to 19 nm, by using radio frequency magnetron sputtering. Thermal stability of the compositional, optical and electrical properties of the AZO/Ag/AZO structures were investigated up to 400 °C and as a function of Ag film thickness. An AZO film as thin as 20 nm is an excellent barrier to Ag diffusion. The inclusion of 9.5 nm thin silver layer within the transparent conductive oxide (TCO) material leads to a maximum enhancement of the electro-optical characteristics. The excellent measured properties of low resistance, high transmittanc…
Introduction: A New Look at the Origins of Economic Growth and Regional Inequality
2018
The contributions to this special issue share important themes and methodologies in their quest to explicate economic development and its effects. Nonetheless, each area under examination has its own peculiarities and warrants its own scope of analysis. The result is a special issue that pursues an innovative line of research, exploring parallels and contrasts in economic growth and inequality based on new data at the regional, rather than simply the national, level. The authors are grateful to the following institutions for their financial support of the research in this special issue of The Journal of Interdisciplinary History: (1) European Union (EU— Jean Monnet Action); (2) ICREA—Genera…
L’interés de Gaspar Escolano per la llengua i la literatura medievals i per Ramon Llull, a la Década primera de la historia de Valencia (1610)
2014
El present treball fa una aproximació a una obra clàssica de la historiografia valenciana al segle xvii, la Década primera de la insigne i coronada ciudad i reyno de Valencia (València 1610), de Gaspar Escolano, per tal de fixar-nos en l’interès d’aquest cronista en alguns dels autors medievals catalans. En especial, en Jaume i –en tant que fundador del Regne de València–, però també en Jordi de Sant Jordi, Andreu Febrer, Jaume Roig i, en especial, Ramon Llull, al qual dedica diversos capítols. This work is an approach to a classic of historiography of València in the XVII century, Década primera de la insigne i coronada ciudad i reyno de Valencia (València 1610), of Gaspar Escolano, lookin…
Sub-critical filtration conditions of commercial hollow-fibre membranes in a submerged anaerobic MBR (HF-SAnMBR) system: The effect of gas sparging i…
2012
A submerged anaerobic MBR demonstration plant with two commercial hollow-fibre ultrafiltration systems (PURON®, Koch Membrane Systems, PUR-PSH31) was operated using municipal wastewater at high levels of mixed liquor total solids (MLTS) (above 22gL -1). A modified flux-step method was applied to assess the critical flux (J C) at different gas sparging intensities. The results showed a linear dependency between J C and the specific gas demand per unit of membrane area (SGD m). J C ranged from 12 to 19LMH at SGD m values of between 0.17 and 0.5Nm 3h -1m -2, which are quite low in comparison to aerobic MBR. Long-term trials showed that the membranes operated steadily at fluxes close to the est…
Use of organic fertilizers for lettuce plug plant production
2009
Vegetable crop production in conventional intensive agricultural systems commonly implies high fertilization rates. Recent data show that the worldwide demand for organically grown products is expanding rapidly. Increasing interest in organic vegetable production has lead to a need to produce seedlings organically. The aim of this study was to evaluate the effects of different levels of organic fertilizers applied to lettuce seedlings on plant growth and yield. Romaine lettuce seeds of cultivar Gretta R were sown on March 2007 in polystyrene plug trays in a unheated greenhouse in the Northern coast of Sicily. At the second leaf stage, seedlings were saturated with solutions containing vario…
Investigation of European shot-hole borer, Xyleborus dispar (Coleoptera, Scolytidae), in apple orchards of Latvia
2015
European shot-hole borer is known to occur on a wide range of deciduous trees and frequently found on fruit trees in most of the Holarctic. During the last years increased activity of this beetle<em> </em>contributed necessity for investigation of it in apple orchards of Latvia. Because of the latent behavior it is difficult to control distribution of <em>Xyleborus dispar</em>. Often insecticides are not effective, especially if not used in an appropriate time and methods of integrated or biological plant protection are needed. In the current study, results of two year monitoring of <em>X. dispar</em> flying activity and effectiveness of two types of stic…
Kinetics of Ascorbic Acid Degradation in Green Asparagus during Heat Processing
1998
The effect of heating on ascorbic acid in green asparagus during a simulated retort operation was investigated. The asparagus was heated in trays of ethylene-vinyl alcohol copolymer for selected time intervals at four temperatures ranging from 110 to 125 degrees C. It was found that the rate of degradation followed first-order kinetics. Kinetic parameters were obtained by using two least squares methods. The activation energy and z value were 35 kcal/mol and 20 degrees C, respectively.
Disclosure Alignment and Transparency Signaling in CSR Reports
2014
This chapter investigates companies' disclosure alignment and transparency signaling within the 2011 CSR annual reports of 36 U.S. firms in the Global Forbes 2000. DICTION 6.0 was used for the text analysis. The study found that CSR reports are fairly similar to corporate financial annual reports but can be classified more accurately as a hybrid discourse with normative elements matching genres emanating from science, business, government, religion, and social movements. Despite the relatively short time that CSR reports have been in existence, this chapter provides evidence that CSR reporting has become institutionalized quickly. The measures of transparency signaling and disclosure alignm…