373 research outputs found

    Modelling the butterfat crystallisation process

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    Milk fat exhibits seasonal variations in composition and properties which are undesirable for many subsequent applications. Thus techniques are sought to process dairy products in order to achieve a consistent quality. A brief introduction to milk fat presents its most important particularities, especially composition, seasonal variations, solid fat content, crystalisation and polymorphism. The differential scanning calorimetry (DSC) analysis allows to estimate the solid fat content. Different methods have been developed to estimate more and more precisely the solid fat content which is certainly an important parameter in the description of the textural properties of butterfat. The industrial crystallisation process is modelled on the basis of pilot plant data. That model allows to approach the particular temperature profile in the scraped surface heat exchangers and to give a first explanation of the involved phenomena

    Stroke survivors with aphasia and their social participation

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    The role of the physical environment in conversations between people who are communication vulnerable and health-care professionals: a scoping review.

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    PURPOSE: The role of the physical environment in communication between health-care professionals and persons with communication problems is a neglected area. This study provides an overview of factors in the physical environment that play a role in communication during conversations between people who are communication vulnerable and health-care professionals. METHOD: A scoping review was conducted using the methodological framework of Arksey and O'Malley. The PubMed, PsycINFO, CINAHL and Cochrane Library databases were screened, and a descriptive and thematic analysis was completed. RESULTS: Sixteen publications were included. Six factors in the physical environment play a role in conversations between people who are communication vulnerable and health-care professionals: (1) lighting, (2) acoustic environment, (3) humidity and temperature, (4) setting and furniture placement, (5) written information, and (6) availability of augmentative and alternative communication (AAC) tools. These factors indicated barriers and strategies related to the quality of these conversations. CONCLUSIONS: Relatively small and simple strategies to adjust the physical environment (such as adequate lighting, quiet environment, providing pen and paper) can support people who are communication vulnerable to be more involved in conversations. It is recommended that health-care professionals have an overall awareness of the potential influence of environmental elements on conversations. Implications for rehabilitation The physical environment is an important feature in the success or disturbance of communication. Small adjustments to the physical environment in rehabilitation can contribute to a communication-friendly environment for conversations with people who are communication vulnerable. Professionals should consider adjustments with regard to the following factors in the physical environment during conversations with people who are communication vulnerable: lighting, acoustic environment, humidity and temperature, setting and furniture placement, written information, and availability of AAC (augmentative and alternative communication tools)

    Prevalence of Angiostrongylus vasorum in southern Belgium, a coprological and serological survey.

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    BACKGROUND: Canine angiostrongylosis, a gastropod-borne helminthic infection, is increasingly being described in North America and is now reported in many European countries. In dogs, Angiostrongylus vasorum may cause a wide spectrum of clinical signs. Respiratory distress such as coughing and dyspnoea are the most frequently described manifestations. The aim of the present study was to gain additional information on the distribution, prevalence and risk factors associated with A. vasorum infection in dog from southern Belgium through the combined used of a commercially available in-clinic assay for detection of circulating antigen (Angio Detect, IDEXX, Westbrook, USA) and coprology in two different canine populations: dogs with clinical signs compatible with angiostrongylosis and asymptomatic dogs or dogs presented for unrelated conditions (control). RESULTS: A total of 979 dogs were enrolled in the study from November 2014 until February 2016. Seven hundred fifty-seven dogs were included in the control group, whereas 222 dogs had clinical signs compatible with angiostrongylosis. Forty-six dogs out of 979 (4.7 %) had A. vasorum circulating antigen. There was a highly significant difference between the two populations (3.6 % (27/747) and 8.6 % (19/222) in control and symptomatic dogs, respectively) (P = 0.00379). First stage larvae (L1) of A. vasorum were found in seven out of 24 serologically positive control dogs and in six out of 17 serologically positive symptomatic dogs. Interestingly, L1 of Crenosoma vulpis were detected by Baermann technique in one control and nine symptomatic dogs, respectively. Out of 17 Angio Detect (IDEXX, Westbrook, USA) positive dogs with negative (14) or not performed Baermann test (three), one dog was positive in both in-house ELISAs (Ag and Ab) and one dog was positive for Ag. Statistical analysis was unable to detect any risk factors associated with the direct and/or indirect detection of A. vasorum. CONCLUSIONS: This seroepidemiological study demonstrated for the first time a high seroprevalence in Southern Belgium for A. vasorum. The Angio Detect was found to be suitable in this context as the collection, preservation and examination of stools were difficult. Nevertheless, discrepancies were observed between the different available tests. Additional research is clearly needed. Also, coproscopy remains a very useful tool in dogs infected for less than nine weeks and for the identification of other canine lung nematodes such as C. vulpis. This study also demonstrates that asymptomatic dogs may shed A. vasorum L1 in their faeces and therefore contribute to the maintenance of A. vasorum life-cycle
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