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1.
Front Psychol ; 14: 1323586, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38268798

RESUMO

The metaverse is a new and evolving environment for fluid teams and their coordination in organizations. Fluid teams may have no prior familiarity with each other or working together. Yet fluid teams are known to benefit from a degree of familiarity-knowledge about teams, members, and working together-in team coordination and performance. The metaverse is unfamiliar territory that promises fluidity in contexts-seamless traversal between physical and virtual worlds. This fluidity in contexts has implications for familiarity in interaction, identity, and potentially time. We explore the opportunities and challenges that the metaverse presents in terms of (un)familiarity. Improved understandings of (un)familiarity may pave the way for new forms of fluid team experiences and uses.

2.
J Radiol Prot ; 38(1): 152-163, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29160234

RESUMO

This position paper gives an overview of how the COMET project (COordination and iMplementation of a pan-European instrumenT for radioecology, a combined Collaborative Project and Coordination and Support Action under the EC/Euratom 7th Framework Programme) contributed to the integration and sustainability of radioecology in Europe via its support to and interaction with the European Radioecology ALLIANCE. COMET built upon the foundations laid by the FP7 project STAR (Strategic Network for Integrating Radioecology) Network of Excellence in radioecology. In close association with the ALLIANCE, and based on the Strategic Research Agenda (SRA), COMET developed innovative mechanisms for joint programming and implementation of radioecological research. To facilitate and foster future integration under a common federating structure, research activities developed within COMET were targeted at radioecological research needs identified in the SRA. Furthermore, COMET maintained and developed strong mechanisms for knowledge exchange, dissemination and training to enhance and maintain European capacity, competence and skills in radioecology. In the short term the work to promote radioecology will continue under the H2020 project EJP-CONCERT (European Joint Programme for the Integration of Radiation Protection Research). The EJP-CONCERT project (2015-2020) aims to develop a sustainable structure for promoting and administering joint programming and open research calls in the field of radiation protection research for Europe. In the longer term, radioecological research will be facilitated by the ALLIANCE. External funding is, however, required in order to be able to answer emerging research needs.


Assuntos
Proteção Radiológica , Radiobiologia , Ecologia , Humanos , Cooperação Internacional
3.
Gastroenterology ; 142(3): 453-462.e3, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22155368

RESUMO

BACKGROUND & AIMS: Short-bowel syndrome usually results from surgical resection of the small intestine for diseases such as intestinal atresias, volvulus, and necrotizing enterocolitis. Patients with congenital short-bowel syndrome (CSBS) are born with a substantial shortening of the small intestine, to a mean length of 50 cm, compared with a normal length at birth of 190-280 cm. They also are born with intestinal malrotation. Because CSBS occurs in many consanguineous families, it is considered to be an autosomal-recessive disorder. We aimed to identify and characterize the genetic factor causing CSBS. METHODS: We performed homozygosity mapping using 610,000 K single-nucleotide polymorphism arrays to analyze the genomes of 5 patients with CSBS. After identifying a gene causing the disease, we determined its expression pattern in human embryos. We also overexpressed forms of the gene product that were and were not associated with CSBS in Chinese Hamster Ovary and T84 cells and generated a zebrafish model of the disease. RESULTS: We identified loss-of-function mutations in Coxsackie- and adenovirus receptor-like membrane protein (CLMP) in CSBS patients. CLMP is a tight-junction-associated protein that is expressed in the intestine of human embryos throughout development. Mutations in CLMP prevented its normal localization to the cell membrane. Knock-down experiments in zebrafish resulted in general developmental defects, including shortening of the intestine and the absence of goblet cells. Because goblet cells are characteristic for the midintestine in zebrafish, which resembles the small intestine in human beings, the zebrafish model mimics CSBS. CONCLUSIONS: Loss-of-function mutations in CLMP cause CSBS in human beings, likely by interfering with tight-junction formation, which disrupts intestinal development. Furthermore, we developed a zebrafish model of CSBS.


Assuntos
Intestino Delgado/anormalidades , Mutação de Sentido Incorreto , Receptores Virais/genética , Síndrome do Intestino Curto/genética , Adolescente , Adulto , Animais , Células CHO , Criança , Pré-Escolar , Proteína de Membrana Semelhante a Receptor de Coxsackie e Adenovirus , Cricetinae , Cricetulus , Modelos Animais de Doenças , Feminino , Regulação da Expressão Gênica no Desenvolvimento , Predisposição Genética para Doença , Heterozigoto , Homozigoto , Humanos , Lactente , Recém-Nascido , Intestino Delgado/metabolismo , Masculino , Morfogênese , Fenótipo , Polimorfismo de Nucleotídeo Único , Receptores Virais/metabolismo , Síndrome do Intestino Curto/embriologia , Síndrome do Intestino Curto/metabolismo , Síndrome do Intestino Curto/patologia , Transfecção , Adulto Jovem , Peixe-Zebra/embriologia , Peixe-Zebra/genética , Peixe-Zebra/metabolismo , Proteínas de Peixe-Zebra/genética , Proteínas de Peixe-Zebra/metabolismo
4.
Int J Pharm ; 394(1-2): 18-25, 2010 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-20416365

RESUMO

Active pharmaceutical ingredients (API) often crystallise in several forms with significant differences in their physical properties. In pharmaceutical applications it is very important to be able to identify these polymorphs during drug manufacturing and storaging, also quantitative information about polymorphs is often required. Solid state (13)C cross-polarisation (CP), magic angle spinning (MAS), nuclear magnetic resonance (NMR) spectroscopy was utilised in studying polymorphisity of an API with two polymorphic forms. Quantitative information was obtained from polymorphic mixtures, and a formulated product was also studied in order to determine the possibility of distinguishing between the two polymorphs in a low-dose formulation. Quantitative data was obtained using two methods: integration of signals from the dipolar dephased spectra, and a chemometric method known as Direct Exponential Curve Resolution Algorithm (DECRA). We concluded that the two polymorphs are easily identifiable based on their spectral differences. Quantitative results showed reasonable accuracy, and while identification of the polymorph present in formulation was not possible, traces of the API are detectable in as low dosage as 0.7% by weight using solid state NMR methods.


Assuntos
Hidrazonas/química , Espectroscopia de Ressonância Magnética/métodos , Piridazinas/química , Tecnologia Farmacêutica/métodos , Algoritmos , Química Farmacêutica/métodos , Cristalização
5.
Appl Spectrosc ; 57(3): 266-73, 2003 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-14658617

RESUMO

Thermally modified wood has many technically interesting properties, such as increased dimensional stability, low equilibrium moisture content, and enhanced biological and weather resistance. This paper describes solid-state nuclear magnetic resonance (NMR) and Fourier transform infrared (FT-IR) spectroscopic studies on the decay of heat-treated and untreated pine (Pinus sylvestris) by brown (Poria placenta) and soft rot fungi. Both techniques combined with multivariate data analysis proved to be powerful tools for the study of wood degradation by fungi. When untreated pine was exposed to brown or soft rot fungi, a drastic decay of the cell wall polysaccharides was observed. Brown rot fungus degraded mainly hemicelluloses while soft rot fungus attacked cellulose more extensively. The aromatic region of 13C cross-polarization magic angle spinning (CPMAS) NMR spectra revealed that the structure of lignin was also altered. New carboxylic structures were formed as a consequence of the decay. The increased biological resistance of pine wood heat-treated at >220 degrees C was observed in the 13C CPMAS NMR and IR spectra.


Assuntos
Basidiomycota/metabolismo , Temperatura Alta , Espectroscopia de Ressonância Magnética/métodos , Pinus/química , Pinus/microbiologia , Espectroscopia de Infravermelho com Transformada de Fourier/métodos , Madeira , Basidiomycota/química , Basidiomycota/patogenicidade , Biodegradação Ambiental , Isótopos de Carbono , Celulose/análise , Celulose/química , Celulose/metabolismo , Lignina/análise , Lignina/química , Lignina/metabolismo , Doenças das Plantas/microbiologia , Caules de Planta/química , Caules de Planta/microbiologia , Polyporales/química , Polyporales/patogenicidade , Polissacarídeos/análise , Polissacarídeos/química , Polissacarídeos/metabolismo , Análise de Componente Principal , Solo , Marcadores de Spin
6.
J Agric Food Chem ; 51(8): 2136-43, 2003 Apr 09.
Artigo em Inglês | MEDLINE | ID: mdl-12670147

RESUMO

Modern multidimensional NMR spectroscopic methods were applied to investigate the effects of kraft pulping and oxygen delignification on lignin side-chain structures. In addition to the two-dimensional HSQC measurements, the three-dimensional HSQC-TOCSY technique was utilized to elucidate the (1)H-(1)H and (1)H-(13)C correlations of individual spin systems and thus indicate a certain lignin side-chain structure. Unlike earlier, nonlabeled samples were used for 3D measurements. According to 2D and 3D NMR spectra, most of the structures identified in milled wood lignin (MWL) are still present in technical lignins after kraft pulping and oxygen delignification. Although the main reaction during kraft pulping is the cleavage of beta-O-4 linkages, these structures are still left in spent liquor lignin as well as in residual lignin. The amount of coniferyl alcohol and dihydroconiferyl alcohol end groups, as well as some unidentified saturated end groups, is higher in technical lignins than in MWL. Contrary to our earlier observations, no diphenylmethane structures were observed in any technical lignins. Vinyl aryl ether structures could not be detected in technical lignins either.


Assuntos
Lignina/análise , Espectroscopia de Ressonância Magnética/métodos , Configuração de Carboidratos , Lignina/química , Estrutura Molecular , Madeira
7.
Scand J Public Health ; 30(3): 200-8, 2002.
Artigo em Inglês | MEDLINE | ID: mdl-12227976

RESUMO

BACKGROUND: There is a need for an expanded approach to develop knowledge of public health nursing as a sphere of public health. The aim of this paper was to construct a theoretical model for healthcare services in the area of public health nursing based on the analysis and classification of healthcare services used in public health nursing practice. METHODS: Patient records were examined using a qualitative research approach. The categorization and classification of the actions followed certain criteria. Three methods were used for verifying and modifying the concept. RESULTS: Of the identified categories 34 dealt with healthcare services, three with administrative services, and five with coordination. The six recognized domains of the healthcare services are health promotive services, health protective services, diagnostic services, therapeutic services, rehabilitation services, and terminal healthcare services. Using the public health approach, the Health promotive action and preventive action model (HPA model) was constructed in order to visualize where in the course of the process of health-ill health and developmental stages the public health nurses provide healthcare services. Health promotion and the levels of prevention are described on the operational and conceptual levels in this paper. CONCLUSIONS: The result is expected to have an important effect on how public health nurses conceptualize their field of knowledge. The classification reflects current public health policy by focusing on health promotion and illness prevention. The developed HPA model will support health service research.


Assuntos
Promoção da Saúde/organização & administração , Modelos Organizacionais , Serviços de Enfermagem/classificação , Enfermagem em Saúde Pública/organização & administração , Atitude do Pessoal de Saúde , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Processo de Enfermagem , Relações Públicas , Pesquisa Qualitativa , Suécia
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