Search results for "IRM"

Adaptación y estudio de las propiedades psicométricas del Cuestionario de consecuencias de consumo de alcohol en jóvenes, forma breve, en muestra esp…

2020

El objetivo de este trabajo es presentar la adaptación y estudio de las propiedades psicométricas del Cuestionario de consecuencias de consumo de alcohol en jóvenes, forma breve (B-YAACQ) en una muestra de 323 estudiantes de Psicología españoles, de los cuales el 74.3% son mujeres. Se realizó una retro-traducción de los ítems siguiendo las normas de la ITC, y un análisis factorial confirmatorio (AFC) con el programa Mplus mediante el método de extracción WLSMV y la matriz de correlaciones policóricas. El AFC arrojó resultados satisfactorios sobre el modelo unidimensional, con muy buenos indicadores de ajuste. Todas las saturaciones factoriales presentaron valores adecuados y fueron estadíst…

Alliance formation as growth opportunity for non-publicly traded companies: a value-added service provided by private equity investors

2016

We analyze the role of Private Equity firms (PE-Firms) as a governance mechanism, focusing on their role as social intermediaries, helping their portfolio companies to form alliances and thereby spurring entrepreneurial growth. Alliances as long term inter-firm cooperations are considered to be a main source of firm-innovation. External growth via alliances is especially important for small to medium sized companies (SME) – largely dominant in Europe (up to 99%)–, because their internal resources are limited. Since a few years, these facts lead governments to undertake actions aimed to create environments that boost inter-firm linkages and entrepreneurial clusters. In European countries, su…

Structural Dynamics and Intentional Governance in Strategic Interfirm Network Evolution

2015

This paper aims to shed light on the drivers underlying the role and scope of intentional governance of the structural dynamics of whole interfirm networks. Prior research has distinguished networks that are emergent from networks that are orchestrated. While empirical studies have shown situations in which the role and scope of intentional governance of whole interfirm networks has changed in time, and there is a growing interest regards the endogenous drivers of network dynamics, the dimensions that influence intentional governance of network structure dynamics and the way this is carried out remain still to be elucidated. In order to pinpoint these drivers, we leverage the models of netw…

Functionnalized magnetite nanoparticles for bimodal imaging MRI/PET

2015

Functionalized magnetite nanoparticles for bimodal MRI/PET imagingSuperParamagnetic Iron Oxide Nanoparticles (SPIONs) have been widely studied in the biomedical field due to their promising application as nanodrugs and MRI (Magnetic Resonance Imaging) contrast agents (T2). In this study, magnetite (Fe3O4) nanoparticles have been developed for use as contrast agents for MRI/PET (Positron emission tomography) double imaging. First, functionalized stable superparamagnetic SPIONs have been synthesized in a continuous hydrothermal reactor. During the synthesis, hydrophilic agents (citric acid, LDOPA, DHCA and PHA) have been grafted on the surface of the nanoparticles. The functionalization of th…

Des femmes en blanc : La « fabrication » des infirmières

2018

The purpose of this PhD thesis is to understand how French nurses are groomed. We will focus on their initial training. How does a common educational background manage to produce such different practitioners? Firstly, a socio-historical approach of the emergence of this professional group will enlighten its internal dynamics especially regarding the institutional education. The training is held by senior nurses, who define the specific tasks and duties of nurses.In a second step, starting from a qualitative and localized fieldwork, we will aim at understanding the recruitment and socialization of student nurses. Recruiting obviously begins with the nursing school entrance examination but co…

High-throughput sequencing of the 16S rRNA gene to analyze the gut microbiome in juvenile and adult tropical gar (Atractosteus tropicus)

2020

Tropical gar (Atractosteus tropicus) is freshwater and estuarine fish, inhabiting the Earth since the Mesozoic era and undergoing limited physiological variation ever since. Besides its recognized cultural and scientific relevance, the species has seen remarkable growth in its economic impact due to pisciculture. In this study, we present the first report of the whole taxonomic composition of microbial communities in gut contents in juveniles and adults of A. tropicus, by sex and origin (wild and cultivated). For this study, 508 genera were identified, with the most and least abundant being Cetobacterium and Paludibacter, respectively. Fusobacteria, Proteobacteria, Firmicutes, and Bacteroid…

Myocardial and coronary functions of glucagon-like peptide-2 in the rat heart.

2010

Kurzversion des Bielefelder Fragebogens zu Partnerschaftserwartungen (BFPE-12)

2019

Zusammenfassung. Die Kurzfassung des Bielefelder Fragebogens zu Partnerschaftserwartungen (BFPE-12) ist ein Selbstrating zur Messung partnerschaftsbezogener Bindungsaspekte. Neben der Messung der Dimensionen Akzeptanzprobleme, Öffnungsbereitschaft und Zuwendungsbedürfnis können Personen Bindungsmustern zugewiesen werden. Die vorliegende Studie evaluiert Faktorenstruktur und psychometrische Eigenschaften des Instruments anhand einer aktuellen bevölkerungsrepräsentativen Stichprobe. Die Stichprobe umfasst N = 1574 Personen. Es wurden soziodemographische Variablen, der BFPE-12, die Kurzform des Depressive Experiences Questionnaire Self-Criticism sowie der Patient Health Questionnaire-4 erhoben…

Sprachentwicklungsstörungen bei Kindern

2009

Wesentliche Voraussetzung für eine ungestörte Kindesentwicklung ist ein regelrechter Spracherwerb. Sprachentwicklungsstörungen (SES) im Kindesalter sind häufig. Für spezifische (isolierte) Sprachentwicklungsstörungen liegt die Prävalenz bei 6 – 8 %; hinzukommen SES, die mit anderen Störungen assoziiert sind. Da flächendeckende Sprachstandserfassungen im Kindergartenalter, die Kinder mit einem SES-Verdacht einer Diagnostik zuführen sollen, auch in Deutschland in den Blickpunkt rücken und eine erhebliche Unsicherheit in der Diagnosestellung von SES und der Verordnungspraxis für Sprachtherapie besteht, sollen die hier in gekürzter Form vorgestellten, überarbeiteten AWMF-Leitlinien der Deutsch…

Network embeddedness and new product development in the biopharmaceutical industry: The moderating role of open innovation flow

2015

This paper explores the role of centrality and structural holes positions on the likelihood to develop new products and the moderating role of the open innovation flow, a measure of the net knowledge flow crossing the firm’s boundaries, on the aforementioned relation. We argue that network positions provide the information content to the firm, whilst open innovation flow describes how the firm uses such content, thus the combination of these two concepts has a significant impact on new product development. We test the theoretical framework on a large sample of 544 public companies and data from 1758 agreements among 1890 bio-pharmaceutical firms through the period 2006–2010. Our results sho…