In developing homogenous catalysts capable of CO activation, interaction with a metal center is often imperative. This work provides primary efforts towards the cooperative activation of CO using a Lewis acidic secondary coordination sphere (SCS) and iron via a paired theoretical/experimental approach. Specifically, this study reports efforts towards [Fe(diphosphine) (N )] as a CO -coordinated synthon where diphosphine=1,2-bis(di(3-cyclohexylboranyl)propylphosphino)ethane) (P B ) or its precursor, 1,2-bis(diallylphosphino)ethane (tape).
View Article and Find Full Text PDFThe 26S proteasome is a 66-subunit-chambered protease present in all eukaryotes that maintains organismal health by degrading unneeded or defective proteins. Defects in proteasome function or assembly are known to contribute to the development of various cancers, neurodegeneration, and diabetes. During proteasome biogenesis, a family of evolutionarily conserved chaperones assembles a hexameric ring of AAA+ family ATPase subunits contained within the proteasomal regulatory particle (RP) and guide their docking onto the surface of the proteolytic core particle (CP).
View Article and Find Full Text PDFThe physiotherapy service became an important player in the care of patients with COVID-19 at Pourtalès hospital (Neuchâtel, Switzerland), illustrating its important role in the organization of acute care units. The workforce was increased, and the diaries extended (7/7d, 24/24h). Respiratory physiotherapists were largely involved in the initiation and the adaptation of the respiratory therapy in the units dedicated to Covid-19 patients (emergency, intensive care and pulmonology units), such as oxygen therapy and both invasive and non-invasive ventilation.
View Article and Find Full Text PDFIn this work, a lightweight inorganic-organic hybrid foam adsorbent is processed out of economically cheap "double-silicate" precursors employing natural bentonite and water glass through a facile cross-linking and polymerization technique. Poly(vinyl alcohol) was used to provide structural strength to the three-dimensional framework. The foam adsorbent possessed an apparent density of 0.
View Article and Find Full Text PDFAs many hospitals lack standardized referral protocols for spiritual care, healthcare professionals' perceptions and preferences play an important role in their decisions to refer patients to chaplains. To better understand what motivates these professionals to refer patients and how they approach spiritual care, this article examines referral requests from twelve healthcare professionals to a chaplain at the Lausanne University Hospital Department of Physical and Rehabilitation Medicine. Comparative discourse analysis highlights that requests are largely driven by difficulties in patient-professional relationships.
View Article and Find Full Text PDFThis article elaborates on the hazards of spiritual history taking. It provides expert insights to consider before entering the field. In summer 2012, a group of spiritual care experts were invited to discuss the complexity of taking spiritual histories in a manner of hermeneutic circle.
View Article and Find Full Text PDFBackground & Aims: Low activity of natural killer (NK) cells has been associated with increased risk of cancer and has been reported in patients with colorectal cancer (CRC). Activity of NK cells can be measured in a small volume of whole blood by a commercially available test. We investigated whether this test could be used to identify patients with CRC, using findings from colonoscopy as a reference standard.
View Article and Find Full Text PDFBackground: Several studies have investigated the relationship between spirituality and health. They claim the need to develop spiritual care to answer patients' spiritual suffering and to promote spiritual well-being. However, the present study critically analyses the following idea: we ought to take care of the spiritual dimension of patients.
View Article and Find Full Text PDFBackground And Aim: Continuous quality improvement (CQI) programs may result in quality of care and outcome improvement. However, the implementation of such programs has proven to be very challenging. This mixed methods systematic review identifies barriers and facilitators pertaining to the implementation of CQI programs in colonoscopy services and how they relate to endoscopists, nurses, managers, and patients.
View Article and Find Full Text PDFBackground: Optimal management of obscure gastrointestinal bleeding (OGIB) remains unclear.
Objective: To evaluate diagnostic yields and downstream clinical outcomes comparing video capsule endoscopy (VCE) with push enteroscopy (PE).
Methods: Patients with OGIB and negative esophagogastroduodenoscopies and colonoscopies were randomly assigned to VCE or PE and followed for 12 months.
Genome-wide association studies and candidate gene studies in ulcerative colitis have identified 18 susceptibility loci. We conducted a meta-analysis of six ulcerative colitis genome-wide association study datasets, comprising 6,687 cases and 19,718 controls, and followed up the top association signals in 9,628 cases and 12,917 controls. We identified 29 additional risk loci (P < 5 × 10(-8)), increasing the number of ulcerative colitis-associated loci to 47.
View Article and Find Full Text PDFBackground: Although spirituality is usually considered a positive resource for coping with illness, spiritual distress may have a negative influence on health outcomes. Tools are needed to identify spiritual distress in clinical practice and subsequently address identified needs. This study describes the first steps in the development of a clinically acceptable instrument to assess spiritual distress in hospitalized elderly patients.
View Article and Find Full Text PDFBackground: Colorectal cancer (CRC) represents a serious and growing health problem in Canada. Colonoscopy is used for screening and diagnosis of symptomatic or high CRC risk individuals. Although a number of countries are now implementing quality colonoscopy services, knowledge synthesis of barriers and facilitators perceived by healthcare professionals and patients during implementation has not been carried out.
View Article and Find Full Text PDFObjectives: Phenotype characteristics of inflammatory bowel disease (IBD) may differ significantly among ethnic subpopulations. The aim of this study was to characterize the IBD phenotype in French Canadians, the most prominent founder population in North America.
Methods: Using well-characterized phenotype data in the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)-IBD Genetics Consortium repository on patients with IBD, we compared phenotypic characteristics of 202 French Canadians with those of 1,287 other Caucasian patients.
The purpose of the study was to analyze the development of nursing practice in family medicine groups (FMGs). The two-year case study consisted of 73 semi-directed interviews ofnurses, physicians and managers in five FMGs. The findings led to three main observations: nursing practice varies considerably from one FMG to another, the development of nurses' practice seems to be associated with the development of a collaborative relationship, and the satisfaction of the professionals in the FMG, nurses in particular, depends on the type of practice.
View Article and Find Full Text PDFAssociation mapping and candidate gene studies within inflammatory bowel diseases (IBD) linkage regions, as well as genome-wide association studies in Crohn's disease (CD) have led to the discovery of multiple risk genes, but these explain only a fraction of the genetic susceptibility observed in IBD. We have thus been pursuing a region on chromosome 3p21-22 showing linkage to CD and ulcerative colitis (UC) using a gene-centric association mapping approach. We identified 12 functional candidate genes by searching for literature cocitations with relevant keywords and for gene expression patterns consistent with immune/intestinal function.
View Article and Find Full Text PDFThe objectives of this study were to explore the meaning of scientific evidence as it is understood by primary care physicians. Individual interviews were conducted with actors chosen for their roles in the production and use of knowledge: 22 family physicians, 13 specialist physicians, and 6 researchers. Two situations served as points of reference for these discussions: screening for genetic breast cancer and treatment of hypertension.
View Article and Find Full Text PDFClinical ethics, as instituted in committees, aims to solve ethical problems by means of interdisciplinary deliberation. Elucidation and deliberation are used a s pragmatic means whose finality is decision-making. This being so, it may be wondered if clinical ethics has not been pruned of its more global critical potential.
View Article and Find Full Text PDFGenomics integrates the promises and perils of modern biomedical science. Canada and the province of Québec embarked late but aggressively in genomics research based on the 'discourse of promise' in which genomics is embedded. This did not prevent the emergence of a 'discourse of concerns', and debates on the wider meaning of genomics and on the risks related to genomics applications such as gene therapy and gene testing.
View Article and Find Full Text PDFSpores of the biocontrol agent, Streptomyces melanosporofaciens EF-76, were entrapped by complex coacervation in beads composed of a macromolecular complex (MC) of chitosan and polyphosphate. A proportion of spores entrapped in beads survived the entrapment procedure as shown by treating spores from chitosan beads with a dye allowing the differentiation of live and dead cells. The spore-loaded chitosan beads could be digested by a chitosanase, suggesting that, once introduced in soil, the beads would be degraded to release the biocontrol agent.
View Article and Find Full Text PDFSpores of Streptomyces melanosporofaciens EF-76, an actinomycete that inhibits the growth of several plant pathogens, were incorporated in beads of chitosan and polyphosphate using the entrapment technique called complex coacervation. The degradation of spore-loaded beads was monitored by measuring the residual amount of chitosan in soil and by enumerating the S. melanosporofaciens population over time.
View Article and Find Full Text PDFCan J Gastroenterol
August 2004
Colorectal cancer is a leading cause of death and the third most common cancer in Canada. Evidence suggests that screening can reduce mortality rates and the cost effectiveness of a program compares favourably with initiatives for breast and cervical cancer. The objectives of the Association des gastro-entérologues du Québec Task Force were to determine the need for a policy on screening for colorectal cancer in Quebec, to evaluate the testing methods available and to propose one or more of these alternatives as part of a formal screening program, if indicated.
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