Stekken onder LED-belichting : verkenning naar de mogelijkheden van het stekken van boomkwekerijgewassen onder LED in een meerlaagssysteem zonder daglicht

LED-belichting biedt enorme kansen voor de tuinbouw. Ook in de boomkwekerij biedt LED-belichting perspectief, met name bij het stekken van boomkwekerijgewassen. LED-belichting geeft namelijk specifieke kleuren af, waarmee processen in de plant beïnvloed kunnen worden, zoals beworteling en vertakking. In dit project is een literatuurstudie gedaan naar de effecten van licht en lichtkleuren op de beworteling van planten. Daarbij moet onderscheid gemaakt worden tussen groeilicht (fotosynthese) en stuurlicht. In het geval van stuurlicht kunnen kleine hoeveelheden van een bepaalde lichtkleur al grote effecten geven. Rood licht lijkt een stimulerende werking te hebben op de beworteling. Vervolgens is er een oriënterende proef gedaan in een klimaatcel. De proef richtte zich op de 1e fase van wortelvorming met relatief lage lichtintensiteiten, omdat stuurlicht hierbij naar verwachting een grote rol heeft. Hierin is het effect beoordeeld van verschillende lichtintensiteiten en verschillende rood/blauw verhoudingen, al dan niet gecombineerd met aanvullend verrood licht. Deze behandelingen zijn vergeleken met een praktijkbehandeling

Stekken onder LED-verlichting 2

De toepassing van LED-licht staat de laatste jaren volop in de belangstelling in de tuinbouw. Deze manier van belichten kent namelijk enkele grote voordelen, zoals een specifiek lichtspectrum en energiezuinige belichting. In 2010-2011 is een verkenning uitgevoerd naar de mogelijkheden van het stekken van boomkwekerijgewassen in een geconditioneerde klimaatruimte met LED-belichting in een meerlagensysteem. Op deze wijze is het proces is beter te sturen omdat alle factoren (licht, temperatuur, vocht) naar behoefte geregeld kunnen worden. Ook kan efficiënt CO2 worden toegediend. Dit alles kan leiden tot een betere en snellere beworteling. In dit rapport wordt het vervolgonderzoek beschreven naar dit nieuwe steksysteem. Het doel van het project was om inzicht te krijgen in het effect van de lichtkleur op de bewortelingssnelheid van enkele belangrijke boomkwekerijgewassen

The effect of a goal-setting strategy with integrated feedback on goal attainment in inflammatory arthritis patients:a mixed method study

Patients with Inflammatory Arthritis (IA) often experience difficulties in daily life as a result of their disease. Unfortunately, outpatient consultations in daily practice tend to focus on medical topics, thereby ignoring the impact of the disease on patients’ daily lives. Patient-Reported Outcomes (PROs) can be used to understand this impact, but they are not enough for offering person-centered care. Because the patient’s true values and goals can only be ascertained during a proper conversation, which should include both medical as well as patient goals. Therefore, the aim of the study is to evaluate the effect of a goal management strategy with integrated feedback on goal attainment and Health-Related Quality of Life(HRQoL) in IA patients. IA patients with an active disease were given the opportunity to set and follow-up goals. In addition to goal setting, patients were asked to complete online questionnaires on various PROs, including HRQoL. Ninety-two IA patients participated in the study. The mean age was 51 years and most of them had rheumatoid arthritis. A total of 302 patient goals were set, of which 32% were achieved. In the entire population, HRQoL did not change over time, but patients who did not meet their goals tended to report a lower HRQoL. Incorporating a feedback mechanism in a goal-setting strategy has a positive effect on goal attainment. Yet no effect was seen on HRQoL, but this may due to the fact that general HRQoL measurement are not sensitive or specific enough to detect changes that are accompanied with goal setting and attainment.</p

Performance of continuous glucose monitoring devices during intensive exercise conditions in people with diabetes:the Mont Blanc experience

With increasing use of both flash glucose monitoring and real-time continuous glucose monitoring and the reliance of users on these readings, accuracy is important, in particular during intensive exercise. We investigated the performance of the FreeStyle Libre 1 flash glucose monitor and the Guardian Connect EnliteTM real-time continuous glucose monitor by comparing readings with self-monitored blood glucose values during intensive exercise.</p

Determinants of HbA1c reduction with FreeStyle Libre flash glucose monitoring (FLARE-NL 5)

Aims: To identify factors predicting HbA1c reduction in patients with diabetes mellitus (DM) using FreeStyle Libre Flash Glucose Monitoring (FSL-FGM). Methods: Data from a 12-month prospective nation-wide FSL registry were used and analysed with multivariable regression. For the present study we included patients with hypoglycaemia unawareness or unexpected hypoglycaemias (n = 566) and persons who did not reach acceptable glycaemic control (HbA1c > 70 mmol/mol (8.5%)) (n = 294). People with other indications for use, such as sensation loss of the fingers or individuals already using FSL-FGM or rtCGM, were excluded (37%). Results: Eight hundred and sixty persons (55% male with a mean age of 46.7 (+/- 16.4) years) were included. Baseline HbA1c was 65.1 (+/- 14.5) mmol/mol (8.1 +/- 1.3%), 75% of the patients had type 1 DM and 37% had microvascular complications. Data concerning HbA1c was present for 482 (56.0%) at 6 months and 423 (49.2%) persons at 12 months. A significant reduction in HbA1c (>= 5 mmol/mol (0.5%)) was present in 187 (22%) persons. For these persons, median HbA1c reduction was -9.0 [-13.0, -4.0] mmol/mol (-0.82 [-1.19, -0.37]%) at 6 months and -9.0 [-15.0, -7.0] mmol/mol (-0.82 [-1.37, -0.64]%) at 12 months. In multi-variable regression analysis with age, gender and SF-12 physical and mental component scores as covariates, only baseline HbA1c was significant: -0.319 (SE 0.025; p <0.001; R-2 = 0.240 for the model). In exploratory analysis among subgroups with different indications for FSL-FGM use (hypoglycaemia unawareness or persistently high HbA1c) and persons with a significant HbA1c decrease over the study period, baseline HbA1c remained the only significant predictor. Conclusions: Among the variables we analysed in the present study, only high HbA1c at baseline predicts significant HbA1c reduction during FSL-CGM use

Vancomyxins: vancomycin-polymyxin nonapeptide conjugates that retain anti-gram-positive activity with enhanced potency against gram-negative strains

Microbial Biotechnolog

Use of FreeStyle Libre Flash Monitor Register in the Netherlands (FLARE-NL1):Patient Experiences, Satisfaction, and Cost Analysis

In patients with diabetes mellitus (DM), adequate glucose control is of major importance. When treatment schemes become more complicated, proper self-management through intermittent self-measurement of blood glucose (SMBG), among others, becomes crucial in achieving this goal. In the last decade, continuous glucose monitoring (CGM) has been on the rise, providing not only intermittent information but also information on continuous glucose trends. The FreeStyle Libre (FSL) Flash CGM system is a CGM system mainly used for patients with DM and is designed based on the same techniques as early CGMs. Compared with earlier CGMs, the FSL is factory calibrated, has no automated readings or direct alarms, and is cheaper to use. Although less accurate compared with the gold standard for SMBG, users report high satisfaction because it is easy to use and can help users monitor glucose trends. The Flash Monitor Register in the Netherlands (FLARE-NL) study aims to assess the effects of FSL Flash CGM use in daily practice. The study has a before-after design, with each participant being his or her own control. Users will be followed for at least 1 year. The endpoints include changes in HbA1c, frequency and severity of hypoglycemias, and quality of life. In addition, the effects of its use on work absenteeism rate, diabetes-related hospital admission rate, and daily functioning (including sports performance) will be studied. Furthermore, cost-benefit analysis based on the combination of registered information within the health insurance data will be investigated. Ultimately, the data gathered in this study will help increase the knowledge and skills of the use of the Flash CGM in daily practice and assess the financial impact on the use of the Flash CGM within the Dutch healthcare system

Paired and clustered quantum Hall states

We briefly summarize properties of quantum Hall states with a pairing or clustering property. Their study employs a fundamental connection with parafermionic Conformal Field Theories. We report on closed form expressions for the many-body wave functions and on multiplicities of the fundamental quasi-hole excitations.Comment: 13 pages, Contribution to the proceedings of the NATO Advanced Research Workshop "Statistical Field Theories" Como (Italy), June 18-23 200

Prognostic value of patient-reported quality of life for survival in oesophagogastric cancer:Analysis from the population-based POCOP study

BACKGROUND: Accumulating evidence of trials demonstrates that patient-reported health-related quality of life (HRQoL) at diagnosis is prognostic for overall survival (OS) in oesophagogastric cancer. However, real-world data are lacking. Moreover, differences in disease stages and tumour-specific symptoms are usually not taken into consideration. The aim of this population-based study was to assess the prognostic value of HRQoL, including tumour-specific scales, on OS in patients with potentially curable and advanced oesophagogastric cancer. METHODS: Data were derived from the Netherlands Cancer Registry and the patient reported outcome registry (POCOP). Patients included in POCOP between 2016 and 2018 were stratified for potentially curable (cT1-4aNallM0) or advanced (cT4b or cM1) disease. HRQoL was measured with the EORTC QLQ-C30 and the tumour-specific OG25 module. Cox proportional hazards models assessed the impact of HRQoL, sociodemographic and clinical factors (including treatment) on OS. RESULTS: In total, 924 patients were included. Median OS was 38.9 months in potentially curable patients (n = 795) and 10.6 months in patients with advanced disease (n = 129). Global Health Status was independently associated with OS in potentially curable patients (HR 0.89, 99%CI 0.82-0.97), together with several other HRQoL items: appetite loss, dysphagia, eating restrictions, odynophagia, and body image. In advanced disease, the Summary Score was the strongest independent prognostic factor (HR 0.75, 99%CI 0.59-0.94), followed by fatigue, pain, insomnia and role functioning. CONCLUSION: In a real-world setting, HRQoL was prognostic for OS in patients with potentially curable and advanced oesophagogastric cancer. Several HRQoL domains, including the Summary Score and several OG25 items, could be used to develop or update prognostic models