798 research outputs found

    An investigation of the RWPE prostate derived family of cell lines using FTIR spectroscopy

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    Interest in developing robust, quicker and easier diagnostic tests for cancer has lead to an increased use of Fourier transform infrared (FTIR) spectroscopy to meet that need. In this study we present the use of different experimental modes of infrared spectroscopy to investigate the RWPE human prostate epithelial cell line family which are derived from the same source but differ in their mode of transformation and their mode of invasive phenotype. Importantly, analysis of the infrared spectra obtained using different experimental modes of infrared spectroscopy produces similar results. The RWPE family of cell lines can be separated into groups based upon the method of cell transformation rather than the resulting invasiveness/aggressiveness of the cell line. The study also demonstrates the possibility of using a genetic algorithm as a possible standardised pre-processing step and raises the important question of the usefulness of cell lines to create a biochemical model of prostate cancer progression

    Uterine Prolapse in a Sheep and its Management: A Case Report

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    It is simply an eversion of the uterus which turns inside out as t passes through the vagina. Prolapse of the uterus generally occurs immediately after or a few hours of parturation when the cervix is open and the uterus lacks tone (Hanie, 2006). Post partum uterine prolapse occurs in all large animal species. It is most common in the cow and ewe, less common in the doe goat and rare in the mare. In sheep, the condition is usually seen in mature females in the last trimester of pregnancy. Predisposing factors include increased intra-abdominal pressure associated with increased size of the pregnant uterus, intra-abdominal fat, or rumen distention superimposed upon relaxation and softening of the pelvic girdle and associated soft-tissue structures in the pelvic canal and perineum. The prolapse is visible as a large mass protruding from the vulva, often hanging down below the animal’s hock. The placenta may likely be retained during this period (Roberts, 1982). Animals with uterine prolapse treated promptly recovers without complication while delay treatment could result in death of the animal in a matter of hour or so from internal hemorrhage caused by the weight of the organ which tears the mesovarium and artery (Noakes et al., 2001). Success of treatment depends on the type of case, the duration of the case, the degree of damage and contamination

    Potentiality of the Usage of Compressed Natural Gas for Competitiveness in Service Delivery Industries

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    . With the rising costs of gasoline, many vehicle owners are looking for alternatives of it. Compressed natural gas (CNG) has been tested for this very purpose in some countries and found as a better alternative so far. CNG comes from country's natural resources and it is clean and less costly to use. This paper is mainly an analysis of the potential benefits of using natural gas as a transportation fuel by the service delivery industries. It will examine CNG's potential contribution in reducing delivery and vehicle maintenance cost, saving money in the long run projects, improving fuel efficiency, enhancing physical safety and assuring environment friendly emissions of carbon monoxide or reactive gases for the service delivery industries

    Financing Small and Medium Enterprises in Bangladesh – Issues and Challenges

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    . Now-a-days, Small and Medium Enterprises (SMEs) have become an important sector that is supposed to play a pivotal role in boosting the economy of Bangladesh. But, SME financing is still facing some remarkable challenges that limit its potential success in contributing to the economy. Lots of thinking has contributed to the initiation and development of SMEs in Bangladesh. Now is the time to identify the challenges and making adjustments to the initial thinking. This paper is, therefore, an attempt to analyze various issues and challenges of financing this particular sector and find some worthy ways out to overcome these challenges. It will also survey various literatures and reports on the concerned field and recommend supporting actions to help this highly prospective industrial sector operate in a fully yielding manner

    On Steering Swarms

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    The main contribution of this paper is a novel method allowing an external observer/controller to steer and guide swarms of identical and indistinguishable agents, in spite of the agents' lack of information on absolute location and orientation. Importantly, this is done via simple global broadcast signals, based on the observed average swarm location, with no need to send control signals to any specific agent in the swarm

    FTIR-based spectroscopic analysis in the identification of clinically aggressive prostate cancer

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    Fourier transform infrared (FTIR) spectroscopy is a vibrational spectroscopic technique that uses infrared radiation to vibrate molecular bonds within the sample that absorbs it. As different samples contain different molecular bonds or different configurations of molecular bonds, FTIR allows us to obtain chemical information on molecules within the sample. Fourier transform infrared microspectroscopy in conjunction with a principal component-discriminant function analysis (PC-DFA) algorithm was applied to the grading of prostate cancer (CaP) tissue specimens. The PC-DFA algorithm is used alongside the established diagnostic measures of Gleason grading and the tumour/node/metastasis system. Principal component-discriminant function analysis improved the sensitivity and specificity of a three-band Gleason score criterion diagnosis previously reported by attaining an overall sensitivity of 92.3% and specificity of 99.4%. For the first time, we present the use of a two-band criterion showing an association of FTIR-based spectral characteristics with clinically aggressive behaviour in CaP manifest as local and/or distal spread. This paper shows the potential for the use of spectroscopic analysis for the evaluation of the biopotential of CaP in an accurate and reproducible manner

    Local simulation of singlet statistics for restricted set of measurement

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    The essence of Bell's theorem is that, in general, quantum statistics cannot be reproduced by local hidden variable (LHV) model. This impossibility is strongly manifested while analyzing the singlet state statistics for Bell-CHSH violations. In this work, we provide various subsets of two outcome POVMs for which a local hidden variable model can be constructed for singlet state.Comment: 2 column, 5 pages, 4 figures, new references, abstract modified, accepted in JP
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