615 research outputs found

    Het management van technologie-overdracht: een kader.

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    Uitgaande van verschillende theoretische benaderingen wordt het fenomeen 'technologie-overdracht' besproken. Verschillende modellen, met name het 'Appropriability Model', het Dissemination Model,' en het 'Knowledge Utilization Model,' dienen als het vertrekpunt voor de ontwikkeling van een denkkader dat de kritische succesfactoren bij technologie-overdracht in kaart brengt. Deze factoren worden bij de opbouw van het denkkader getoetst aan de resultaten van een empirisch onderzoek naar technologie-overdracht en innovatie bij een steekproef van 588 Vlaamse ondernemingen. Aan de basisvan de veelheid van kritische succesfactoren die beschreven worden, ligt steeds de noodzaak aan een vertrouwensrelatie tussen de bron en de ontvanger van de betreffende technologie. Deze vaststelling houdt in dat technologie-overdracht in veel gevallen een volgehouden inspanning en bijhorende systematiek vereist die best onderbouwd worden door frequentie en intense informele contacten en interacties.Management;

    Bioprospecting metagenomes: glycosyl hydrolases for converting biomass

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    Throughout immeasurable time, microorganisms evolved and accumulated remarkable physiological and functional heterogeneity, and now constitute the major reserve for genetic diversity on earth. Using metagenomics, namely genetic material recovered directly from environmental samples, this biogenetic diversification can be accessed without the need to cultivate cells. Accordingly, microbial communities and their metagenomes, isolated from biotopes with high turnover rates of recalcitrant biomass, such as lignocellulosic plant cell walls, have become a major resource for bioprospecting; furthermore, this material is a major asset in the search for new biocatalytics (enzymes) for various industrial processes, including the production of biofuels from plant feedstocks. However, despite the contributions from metagenomics technologies consequent upon the discovery of novel enzymes, this relatively new enterprise requires major improvements. In this review, we compare function-based metagenome screening and sequence-based metagenome data mining, discussing the advantages and limitations of both methods. We also describe the unusual enzymes discovered via metagenomics approaches, and discuss the future prospects for metagenome technologies

    Patterns of recurring dispensing of guideline antibiotics for uncomplicated urinary tract infection in women over a 5-year period: longitudinal patterns of recurring dispensings of Dutch guideline UTI antibiotics

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    Background. Urinary tract infection (UTI) is one of the most prevalent medical conditions among women seeking primary care. About 20-40% of the women have a UTI recurrence during their lifetime.Objective. To provide insight in the patterns of recurring annual dispensing for antibiotics commonly used for UTI treatment in women, aged 18 years or older, during a 5-year follow-up period in the Netherlands.Methods. The Dutch Foundation of Pharmaceutical statistics collects dispensing data from more than 90% of all community pharmacies. Pharmacies with complete data between years 2011 and 2017 were included. Women of age 18 years or older with a first dispensing of nitrofurantoin, fosfomycin, or trimethoprim in 2012 and a dispensing of any medication in 2017 were selected. For each year between 2013 and 2017, the proportions of women with recurring dispensing of nitrofurantoin, fosfomycin or trimethoprim were calculated and stratified for age categories.Results. Within 1517 eligible community pharmacies, 463 821 women, aged 18 years or older, were dispensed one of the antibiotics in 2012, and 239 292 women still visited the same pharmacy in 2017. About 56% of them received at least one recurring dispensing during 5 years of follow-up. Each year, similar to 20% of the source population had at least one recurring dispensing. Approximately 2% of the source population had at least one recurring dispensing in each year of follow-up.Conclusions. Over the 5-year study period, more than 50% of the source population had at least one recurring dispensing for uncomplicated UTI, most of them with at least 1 year without UTI dispensing in between.Clinical Pharmacy and Toxicolog

    Adherence to guideline recommendations for urinary tract infections in adult women: a cross-sectional study

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    Aim:To study whether changes in drug preferences in the Dutch guideline for the treatment of Urinary Tract Infection (UTI) for General Practitioners (GPs) in 2013, resulted in corresponding changes in antibiotic dispensing.Background:For the treatment of uncomplicated UTI, nitrofurantoin remained the first choice, while fosfomycin became the second choice and changed ranks with trimethoprim. For a subsequent febrile UTI, ciprofloxacin became the first choice and changed ranks with amoxicillin/clavulanic acid, co-trimoxazole remained the third choice.Methods:In this observational cross-sectional study, routinely collected dispensing data from the Dutch Foundation of Pharmaceutical Statistics from 2012 to 2017 were used. The number of women 18 years and older, treated with one of the guideline antibiotics for uncomplicated UTI and subsequent febrile UTI were analysed annually. Proportions were calculated. Data were stratified for age categories. Failure of uncomplicated UTI treatment was defined as the dispensing of an antibiotic for febrile UTI within 14 days after the dispensing of an antibiotic for uncomplicated UTI.Findings:Data were available from 81% of all pharmacies in 2012 to 89% in 2017. Percentages of women dispensed nitrofurantoin were relatively stable with 87.4% in 2012 and 84.4% in 2017. Percentages of women dispensed fosfomycin increased from 5.4% in 2012 to 21.8% in 2017, whereas percentages of women dispensed trimethoprim decreased from 17.8% to 8.0%. Within age categories, the percentage of women dispensed fosfomycin increased from 12.4% in women 18-30 years old to 36.7% in women above 80 years old. Percentages of women dispensed antibiotics for febrile UTI remained stable at 5% annually. Percentages of women receiving ciprofloxacin increased from 1.9% in 2012 to 3.3% in 2017, while those receiving amoxicillin/clavulanic acid decreased from 2.9% to 1.8%. New guideline recommendations resulted in corresponding changes in dispensed antibiotics for uncomplicated UTI and subsequent febrile UTI. Drug choices differed for age categories.Clinical Pharmacy and Toxicolog

    Womens' self-management skills for prevention and treatment of recurring urinary tract infection

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    Background The guideline on urinary tract infections (UTI) of the Dutch College of General Practitioners provides recommendations on patient-initiated treatment and prevention of recurring UTI.Aim To study familiarity with self-management skills for prevention of recurring UTI amongst adult women.Design and settings An online questionnaire was developed, based on the UTI guideline and interviews with women having recurring UTI. Pharmacists in a postgraduate education programme (N = 76) aimed to invite 10 adult women with a recurring UTI prescription to complete the questionnaire. Women were asked for informed consent to link medication record data to questionnaire data.Method We calculated proportions of the scores for self-management skills and analysed differences between age groups with chi-square test.Results Complete questionnaires were available for 719 women (mean age 55.1 +/- 18.5 years). The proportions of women 18-50 years and women 51 years or older were 36.4% and 63.6%, respectively. Education levels of women 18-50 years were significantly higher than those of women 51 years and older. Before consulting a general practitioner (GP) for symptoms, 32.1% of all women increased fluid intake; additionally, 15.0% used analgesics and increased fluid intake. Of all women, 33.9% searched internet for information on self-management and 18% occasionally received a prescription for patient-initiated treatment, half of these prescriptions for use during vacation. Cranberry was used by 47%, d-mannose by 5% and vitamin C by 29% of all women. Awareness of different preventive behavioural measures (eg, fluid intake, washing without soap and emptying bladder after sexual intercourse) varied between 20% and 90%.Conclusion Almost half of all women applied self-management (increased fluid intake, analgesics) before consulting a GP for recurring UTI. Awareness of preventive behavioural measures for recurring UTI varied considerably. Thus, education of women about the use of analgesics and behavioural measures deserves attention.Clinical Pharmacy and Toxicolog

    Survey on general practitioners' and pharmacists' opinions regarding patient-initiated treatment of recurring urinary tract infections

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    Background The Dutch general practitioners (GP) guideline for urinary tract infections (UTI) recommends patient-initiated treatment for women with recurring UTI. In countries other than the Netherlands, community pharmacists play a role in dispensing antibiotics for recurring UTI without preceding GP consultation. Objective To study GP and pharmacist opinions regarding the desirability of patient-initiated treatment, including potential pharmacist support for, and consequences of, facilitated access to antibiotics. Setting Dutch community pharmacies that cooperate with at least two GPs in their regional primary care network. Method Pharmacists in a postgraduate education program invited their residency pharmacist and 2-3 GPs to anonymously complete an online questionnaire. Questions related to diagnosis, treatment and potential role of the pharmacist. Answers were formulated as multiple-choice or ratings on a 5-point Likert scale. Data were analysed per professional group using descriptive statistics. Answers of pharmacists and GP to corresponding questions were analysed using a Chi-square test (p < 0.05). Main outcome measure Desirability of patient-initiated treatment and supporting role of the pharmacist. Results A total of 170 GPs and 76 pharmacists completed the questionnaires. Of the GPs, 35.1% supported patient-initiated treatment. Of the pharmacists, 69.7% were willing to dispense an antibiotic to a patient without preceding GP consultation after performing a probability check. In total, 65.7% of GPs and 44.7% of pharmacists thought that facilitated access to antibiotics would increase use of antibiotics (p < 0.05). Conclusion Support of GPs for facilitated access to antibiotic treatment by patient-initiated UTI treatment was limited, even with pharmacist support. The majority of pharmacists were willing to dispense an antibiotic after a probability check of an episode of recurring UTI, but both pharmacists and GPs were concerned about overuse of antibiotics.Clinical Pharmacy and Toxicolog
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