158 research outputs found
02/28/1944 Letter from Friends of Belgium: an Agency of the Belgian War Relief Society
Letter from Robert Goffin and Vicomtesse A. du Parc of Friends of Belgium: an Agency of the Belgian War Relief Society to Louis-Philippe Gagné.https://digitalcommons.usm.maine.edu/fac-lpg-letters-1940-1946/1003/thumbnail.jp
04/28/1944 Letter from Friends of Belgium: An Agency of the Belgian War Relief Society
Letter from Robert Goffin of Friends of Belgium: An Agency of the Belgian War Relief Society to Louis-Philippe Gagné.https://digitalcommons.usm.maine.edu/fac-lpg-letters-1940-1946/1007/thumbnail.jp
Supercritical fluid extraction of tagitinin C from Tithonia diversifolia: Comparison of extraction yield and selectivity between supercritical fluid and classical methods of extraction
Peer reviewe
N-Aryl-N'-(chroman-4-yl)ureas and thioureas display in vitro anticancer activity and selectivity on apoptosis-resistant glioblastoma cells: screening, synthesis of simplified derivatives, and structure-activity relationship analysis.
A series of chroman derivatives previously reported as potassium channel openers, as well as some newly synthesized simplified structures, were examined for their in vitro effects on the growth of three human high-grade glioma cell lines: U373, T98G, and Hs683. Significant in vitro growth inhibitory activity was observed with 2,2-dimethylchroman-type nitro-substituted phenylthioureas, such as compounds 4o and 4p. Interestingly, most tested phenylureas were found to be slightly less active, but more cell selective (normal versus tumor glial cells, such as 3d, 3e, and 3g), thus less toxic, than the corresponding phenylthioureas. No significant differences were observed in terms of chroman-derivative-induced growth inhibitory effects between glioma cells sensitive to pro-apoptotic stimuli (Hs683 glioma cells) and glioma cells associated with various levels of resistance to pro-apoptotic stimuli (U373 and T98G glioma cells), a feature that suggests non-apoptotic-mediated growth inhibition. Flow cytometry analyses confirmed the absence of pro-apoptotic effects for phenylthioureas and phenylureas when analyzed in U373 glioma cells and demonstrated U373 cell cycle arrest in the G0/G1 phase. Computer-assisted phase-contrast videomicroscopy revealed that 3d and 3g displayed cytostatic effects, while 3e displayed cytotoxic ones. As a result, this work identified phenylurea-type 2,2-dimethylchromans as a new class of antitumor agents to be further explored for an innovative therapeutic approach for high-grade glioma and/or for a possible new mechanism of action
Effects of rater priming and incentives on rating accuracy
We investigated the effects of two manipulations - incentives and rater priming - on performance appraisal accuracy. In contrast with previous studies, our results did not support the hypotheses that priming and incentives would improve Cronbach’s (1955) differential accuracy, a type of accuracy that is most relevant to employee feedback
A micro-architectural evaluation of osteoporotic human femoral heads to guide implant placement in proximal femoral fractures
Peer reviewedPublisher PD
Linear viscoelasticity - bone volume fraction relationships of bovine trabecular bone
Trabecular bone has been previously recognized as time-dependent (viscoelastic) material, but the relationships of its viscoelastic behaviour with bone volume fraction (BV/TV) have not been investigated so far. Therefore, the aim of the present study was to quantify the time-dependent viscoelastic behaviour of trabecular bone and relate it to BV/TV. Uniaxial compressive creep experiments were performed on cylindrical bovine trabecular bone samples ([Formula: see text] ) at loads corresponding to physiological strain level of 2000 [Formula: see text] . We assumed that the bone behaves in a linear viscoelastic manner at this low strain level and the corresponding linear viscoelastic parameters were estimated by fitting a generalized Kelvin–Voigt rheological model to the experimental creep strain response. Strong and significant power law relationships ([Formula: see text] ) were found between time-dependent creep compliance function and BV/TV of the bone. These BV/TV-based material properties can be used in finite element models involving trabecular bone to predict time-dependent response. For users’ convenience, the creep compliance functions were also converted to relaxation functions by using numerical interconversion methods and similar power law relationships were reported between time-dependent relaxation modulus function and BV/TV
Establishing a core outcome set for peritoneal dialysis : report of the SONG-PD (standardized outcomes in nephrology-peritoneal dialysis) consensus workshop
Outcomes reported in randomized controlled trials in peritoneal dialysis (PD) are diverse, are measured inconsistently, and may not be important to patients, families, and clinicians. The Standardized Outcomes in Nephrology-Peritoneal Dialysis (SONG-PD) initiative aims to establish a core outcome set for trials in PD based on the shared priorities of all stakeholders. We convened an international SONG-PD stakeholder consensus workshop in May 2018 in Vancouver, Canada. Nineteen patients/caregivers and 51 health professionals attended. Participants discussed core outcome domains and implementation in trials in PD. Four themes relating to the formation of core outcome domains were identified: life participation as a main goal of PD, impact of fatigue, empowerment for preparation and planning, and separation of contributing factors from core factors. Considerations for implementation were identified: standardizing patient-reported outcomes, requiring a validated and feasible measure, simplicity of binary outcomes, responsiveness to interventions, and using positive terminology. All stakeholders supported inclusion of PD-related infection, cardiovascular disease, mortality, technique survival, and life participation as the core outcome domains for PD
Mixing rich and asynchronous communication for new service development performance
This article explores the nature of relationships between internal communication modes, new service development (NSD) competencies (specifically learning and development competencies) and NSD performance. To do so, it draws on and advances communication theory by comparing and contrasting the contingent approach, favoured by media richness theory and media synchronicity theory, with the multiplicative manner of dual coding theory. Antecedent roles of rich and asynchronous communication modes for two NSD competencies are investigated, and their function as critical contingency variables affecting the competencies–performance link is unravelled. An empirical quantitative study of senior managers of leading service firms was conducted, with a survey-based methodology. Results show that a learning competency drives development competency which in turn drives NSD performance. Asynchronous communication is essential for learning competency but not for development competency. In contrast, rich communication underpins development but has no direct effect on learning competency. Rich communication is essential for NSD performance when a firm has a low development competency. The interaction between asynchronous and rich communication is shown to be positive for learning, whereas surprisingly it is negative for development competency
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