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Comparison of different variable selection methods conducted on NIR transmission measurements on intact tablets

Near infrared (NIR) transmission spectroscopy is a promising method for fast quantitative measurements on pharmaceutical tablets, but there are still some problems to overcome in order to incorporate the technique as a control tool in tablet production. The main problem is the limited precision for multivariate calibrations based on NIR transmission data. The precision is affected by several facto

Environmental optimization in fractionating industrial wastes using cost-benefit analysis

This paper proposes that industrial waste be regarded, in a business economic sense, as having the same basic status as regular products. A basic mathematical expression for assigning industrial costs to waste is presented. The expression can be employed in conjunction with cost-benefit analysis for estimating the "true" internal costs of industrial waste. In two case studies presented, industrial

Kronisk mesenteriell ischemi. Endovaskulär behandling lika effektiv som öppen kirurgi

Chronic mesenteric ischaemia is a rare but serious condition, which if untreated may cause death secondary to starvation or bowel infarction. As the symptoms are sometimes unspecific, its diagnosis may be delayed or missed. Although open surgical revascularisation has been the traditional treatment, a review of published reports suggests it to be associated with operative mortality rates of 6-9 pe

Thermionic phenomena in a nanoscale ring without carrier reservoirs: A thermionic couple

We have studied various thermionic processes in a small one-dimensional ring consisting of a metallic wire and an insulator which serves as the potential barrier for the charge carriers in the metallic wire. The ring is not connected to any particle reservoir, but at the two junctions it is attached to two phonon reservoirs with different temperatures. The lengths of both the metallic wire and the

Development and Application of Laser Techniques for Studying Fuel Dynamics and NO Formation in Engines

Development and application of some laser techniques for the study of engine combustion are presented. The investigations mainly cover two aspects: fuel dynamics and formation of NO. Fuel dynamics is one of the most central problems in engine design since many performance parameters are affected by it; emission formation, efficiency, drivability etc. The studies include cycle-resolved measurement

Kritiska tankar om historia

Maria Sjöberg behandlar i Kritiska tankar om historia hur ett antal skeden i världshistorien har framställts och framställs i historiska verk.

Sinuosity Effects on Longitudinal Dispersion Coefficient

A method for reaching longitudinal dispersion coefficient accounting sinuosity effects is suggested. The proposed method was verified using 43 sets of measured field data from previous study were collected from 30 streams and these data were chosen depends on characteristics availability (flow parameters, fluid properties and Sinuosity). Statistical programs namely MINITAB and SPSS were used to de

Fourth-corner generation of plant functional response groups

Plant functional response groups (PFGs) are now widely established as a tool to investigate plant-environment relationships. Different statistical methods to form PFGs are used in the literature. One way is to derive emergent groups by classifying species based on correlation of biological attributes and subjecting these groups to tests of response to environmental variables. Another way is to sea

Modeling Ozone Decomposition Flames

An updated detailed kinetic mechanism for ozone combustion is developed. The contemporary choice of the reaction rate constants is presented with emphasis on their uncertainties. Model predictions are compared with available experimental data for ozone decomposition flames and with the Moscow State University (MSU) mechanism used elsewhere in the literature. These two models show similar performan

An Evil King 'Thing', Rising, Falling and Multiplying in Trucker Culture

Paraphrasing Slavoj Zizek (1991: 65), the paper proposes that: 'The Scania Truck does not exist': it is nothing but 'the symptom of passionate users', its power of fascination masks the void of its nonexistence'. Along the same line of reasoning, it argues, again paraphrasing Zizek, that 'the customized Scania truck is becoming the sinthome of its user'. (c.f. Zizek, 1991: 137). The paper does so

Serological markers predict inflammatory bowel disease years before the diagnosis

Objective Anti-neutrophil cytoplasmic antibodies and anti-Saccharomyces cerevisiae mannan antibodies (ASCAs) have been detected in the serum of patients with ulcerative colitis (UC) and Crohn's disease (CD) and their unaffected family members. The aim of this study was to establish the value of serological markers as predictors of UC and CD. Design Individuals who developed CD or UC were identifie

Stable massive particles at colliders

We review the theoretical motivations and experimental status of searches for stable massive particles (SMPs) which could be sufficiently long-lived as to be directly detected at collider experiments. The discovery of such particles would address a number of important questions in modern physics including the origin and composition of dark matter in the universe and the unification of the fundamen

Intramolecular Electron Transfer from Manganese(II) Coordinatively Linked to a Photogenerated Ru(III)-Polypyridine Complex: A Kinetic Analysis

For further investigations in the field of artificial photosynthesis, a model compound, 1, has been developed to mimic the electron-transfer steps from the manganese cluster to P680+ in photosystem II. In this model compound the photosensitizer ruthenium(II)-trisbipyridyl was linked to a manganese(II) ion through a bridging ligand. Photoexcitation of 1 in the presence of the electron acceptor meth

Cultural Revolution on the Border: Yunnan's "Political Frontier Defence"

This paper addresses an important but so far neglected episode in the post-1949 history of China – the impact of the so-called 'Cultural Revolution' on the country's ethnic minority populations. Specifically, it attempts to deal with the movement as it unfolded in the province of Yunnan where, at one stage, it became an attempt by a political leadership in the provincial capital, dominated by mili

Comparison of different labelling index formulae used on bromodeoxyuridine-flow cytometry data

The essence of the bromodeoxyuridine (BrdUrd)-flow cytometry (FCM) technique is that cells are labelled with the thymidine analogue BrdUrd. They are then allowed to progress through the cell cycle in a BrdUrd-free environment during the postlabelling time period. At a postlabelling time shorter than the length of the S phase (Ts), cells are fixed and prepared for FCM-mediated analysis of BrdUrd an

Differentiated limits for knowability

The article is based on the string-hypothesis, which has important scientific consequences. Science has meant to associate the notion of number with the strict operation of counting. However, recent account of string-theoretical approaches is sharply distinguishing ”number” from ”magnitude”. In studying ”spinning” strings in the context of language, it is shown that rotation is a valid concept. Fo