Search results for "IRM"

Celiakijas biežums pacientiem ar autoimūnu tireoidītu un pirmā tipa cukura diabētu

2016

Ievads: Celiakija ir multifaktoriālu etioloģisku faktoru izraisīta eneteropātija ģenētiski predisponētiem indivīdiem. Ģenētiskas predispozīcijas pārklašanās rezultātā celiakijas izplatību konstatē kombinācijā ar vairākām autoimūnām slimībām, piemēram, autoimūnu hepatītu, Šegrēna sindromu, autoimūnu tireoidītu (AIT) un pirmā tipa cukura diabētu (CD). Tāpēc ir būtiski veikt seroloģisku izmeklēšanu pacientiem ar paagstinātu risku. Darba mērķis. Izpētīt celiakijas izplatību pieagušiem pacientiem ar pirmā tipa cukura diabētu un autoimūnu tireoidītu Latvijā. Materiāli un metodes. Tika veikts šķērsgriezuma pētījums, kurā kopumā iekļauti 75 pacienti ar diagnosticētu pirmā tipa cukura diabētu un 135…

Morphometric magnetic resonance imaging cortico-subcortical features in Parkinson's disease with mild cognitive impairment

2022

Background and purpose Parkinson's disease (PD) patients with cognitive impairment undergo progressive atrophy of several cortical and subcortical areas. The aim was to study the magnetic resonance imaging (MRI) morphometric features of PD patients with mild cognitive impairment (MCI). Methods Patients from the Parkinson's Disease Cognitive Impairment Study (PACOS) cohort with an available structural volumetric brain MRI and morphometric measurements of the midbrain and pons areas, middle cerebellar peduncle, superior cerebellar peduncle width and midbrain anteroposterior diameter (A-Pdiam) were included. MCI was diagnosed according to the Movement Disorder Society level II criteria. Additi…

Bimodal tracers synthesis for medical imaging PET/MRI

2015

Today physicians can use a wide variety of medical imaging techniques to establish early and accurate diagnosis. Nevertheless, each modality has its own advantages and drawbacks. This is why bi- or multimodality approach seems interesting. Among them, PET/MRI combination seems very promising because it can bring complementary informations. It is therefore necessary to inject to patients tracers specific to each imaging modality. This work described the synthesis of molecular platforms for MRI and PET imaging, according to 2 different strategies. The first one consisted in the synthesis of a DO3A macrocycle allowing the chelation of both gadolinium for MRI and gallium 68 for PET. The aim her…

Is loneliness associated with mild cognitive impairment in low- and middle-income countries?

2021

Background: Loneliness may be a risk factor for mild cognitive impairment but studies on this topic are scarce, particularly from low- and middle-income countries (LMICs). Therefore, the aim of the present study was to investigate the association between loneliness and mild cognitive impairment (MCI) in six LMICs (China, Ghana, India, Mexico, Russia and South Africa). Methods: Cross-sectional, community-based, nationally representative data from the WHO Study on global AGEing and adult health (SAGE) were analyzed. The definition of MCI was based on the National Institute on Ageing-Alzheimer's Association criteria. Multivariable logistic regression analysis and meta-analysis were conducted t…

Risk issues for foreign software firms in China

2007

Wireless MAC processors: programming MAC protocols on commodity hardware

2012

Programmable wireless platforms aim at responding to the quest for wireless access flexibility and adaptability. This paper introduces the notion of wireless MAC processors. Instead of implementing a specific MAC protocol stack, Wireless MAC processors do support a set of Medium Access Control “commands” which can be run-time composed (programmed) through software-defined state machines, thus providing the desired MAC protocol operation. We clearly distinguish from related work in this area as, unlike other works which rely on dedicated DSPs or programmable hardware platforms, we experimentally prove the feasibility of the wireless MAC processor concept over ultra-cheap commodity WLAN hardw…

Cartes et élections : la construction des circonscriptions électorales aux Etats-Unis, entre égalité et équité

2003

Maps and Elections : The Construction of Electoral Districts in the USA. Decennal census-led redistricting in the United States is the occasion for court actions focused nowadays on the political representation of ethnic minorities. Computer tools make possible the building of districts specifically tailored for Blacks or Hispanics, but blatant racial gerrymandering is now rejected by the US Supreme Court. This paper examines the most relevant judicial decisions and describes several local cases.

Validating the early childhood classroom observation measure in first and third grade classrooms

2016

The present study reports on the psychometric properties of the Early Childhood Classroom Observation Measure (ECCOM) in Finnish and Estonian first and third grade classrooms. The observation data were collected from 91 first grade teachers and 70 third grade teachers. Teachers' curriculum goals, teaching experience and the classroom size were measured also. The results of confirmatory factor analysis provided evidence of the three-factor model (management, climate, and instruction) for each dimension—child-centred, teacher-directed, and child-dominated—in both grades. The reliability of the dimensions and sub-scales was good, and some evidence was also found for criterion validity. The fin…

Group climate, cohesion, and curative climate: A study on the common factors in the group process and their relation with members' attachment dimensi…

2015

This study examined the relationships among the group process measured by the Group Climate Questionnaire, the Cohesion to the Therapist Scale and Cohesion to the Group Scale, and the Curative Climate Instrument to explore higher order factors that explained the group relationship in a sample of 91 female university students attending six interpersonal growth groups. Furthermore, the study examined how group members' attachment dimensions, anxiety, and avoidance were associated to their perceptions of the group relationship. We found that a three-factor model consisting of positive bond, positive work, and negative relationship approached conventional standards of a model fit. Moreover, the…

Co-Operation On R&D As An Innovation Strategy: Evidence From
 Valencian Firms

2001

Using survey data on Valencian manufacturing firms we analyse the factors influencing the probability of a firm to co-operate on R&D with different types of partners. We find that Research Institutions play a key role as a source of information for the decision to co-operate with any type of partner, and in particular to co-operate either with suppliers or customers (vertical cooperation). The availability of public funds and incoming spillovers increase the probability of the firm to co-operate on R&D whereas the orientation of the innovating activities towards basic R&D decreases this probability. Concentrating on co-operative firms on R&D, we further explore the determinants of co-operat…