Search results for "DWI"
showing 10 items of 529 documents
Ergebnisse des Hypothermienetzwerks des Universitätsklinikums Dresden von 2010–2017. Entwicklung der Hypothermietherapie bei Neugeborenen in Deutschl…
2020
Einleitung Die Hypothermiebehandlung (TH) verbessert bei Neugeborenen mit hypoxisch-ischamischer Enzephalopathie (HIE) das Outcome und sollte bei Hinweisen fur eine perinatale Asphyxie und Zeichen einer moderaten oder schweren HIE angewendet werden. Material/Methode Die Haufigkeit der HIE und der Anwendung der TH wurde aus den Daten der Neonatalerhebung und den Daten des 2010 etablierten Hypothermieregisters extrahiert. Letztere wurden daruber hinaus zur Analyse des kurzfristigen Outcomes herangezogen. Ergebnisse Zwischen 2010 und 2017 schlossen sich 106 der 213 (Stand Marz 2020) deutschen Perinatalzentren dem Register an. Die Ruckantwortquote lag zwischen 22 und 60%. Im Register wurden pro…
Maximum likelihood ADC parameter estimates improve selection of metastatic cervical nodes for patients with head and neck squamous cell cancer
2012
The aim of this work was to determine whether classification of benign and metastatic cervical nodes based on diffusion weighted imaging (DWI) could be improved by use of a maximum likelihood algorithm for derivation of ADC parameters. A non linear least squares (LSQ) algorithm is usually used to fit parameters to the measured MR signal intensities as a function of b-value. LSQ assumes that the noise in high b-values is normally distributed whereas in reality it follows a Rice distribution. To account for the Rician noise, maximum likelihood (ML) algorithms have been proposed that provide unbiased ADC estimates. In this work the monoexponential, stretched exponential and biexponential model…
Knowledge, attitudes and practices of primary healthcare professionals to female genital mutilation in Valencia, Spain: are we ready for this challen…
2017
Background The practice of Female Genital Mutilation (FGM) is a deeply-rooted tradition in 30 Sub-Saharan and Middle-East countries which affects approximately 200 million women and girls worldwide. The practice leads to devastating consequences on the health and quality of life of women and girls in both the short and long term. Globalizing processes and migration flows have recorded cases of this practice worldwide representing for healthcare professionals an emerging challenge on how to approach their healthcare in a transcultural, ethical and respectful way. No survey to assess knowledge, attitudes and practices on FGM among primary healthcare professionals has been conducted in the Val…
Pielgrzymka Ślązaków do Rzymu i Viterbo w 1967 r. Na drodze polsko-niemieckiego pojednania
2018
W dniach od 11 do 21 maja 1967 r. grupa 641 niemieckich Ślązaków pielgrzymowała do Rzymu i Viterbo. Ich celem było wspólne dziękczynienie za dar kanonizacji św. Jadwigi, jakiej w 1267 r. dokonał w Viterbo papież Klemens IV. W taki sposób chciano publicznie zamanifestować obecność Ślązaków w przestrzeni publicznej. W Rzymie i Viterbo modlono się wspólnie za śląską ojczyznę i śląskie rodziny, podzielone poglądami politycznymi, narodowymi i wreszcie żelazną kurtyną. Główne uroczystości dziękczynne miały miejsce w katedrze w Viterbo. Dodatkowo świętowano 100. rocznicę powstania śląskiej grupy maltańskiej, którym patronuje św. Jadwiga, skupiającej w swoich szeregach przedstawicieli najważniejszy…
’-omics’ technology and human reproduction: reproductomics
2012
The success of assisted reproduction technology is highly dependent on a precise selection of gametes and embryos and determining the best endometrial window for embryo implantation. For many years, morphological criteria have constituted the only way to assess spermatozoon, oocytes, embryos and endometrial samples in order to improve outcomes. However, this approach has reached a ceiling of success and has been related to unacceptably high rates of multiple pregnancies. New technologies have been developed in order to improve the results and reduce risks via better selection of those gametes and embryos with the highest pregnancy potential, and of more favorable endometrial environments fo…
Solipsismin kritiikki Wittgensteinin myöhäisfilosofiassa
2007
Tässä tutkielmassa käsittelen solipsismin teemaa Ludwig Wittgensteinin myöhäiskauden filosofiassa. Tavoitteena on tarkastella huolellisesti Wittgensteinin solipsismiin liittyviä tekstikokonaisuuksia ja huomautuksia ja selvittää, kuinka näiden kautta hahmottuu moniosainen ja voimakas kritiikki solipsismia vastaan. Esitän, että Wittgensteinin kriittiset argumentit kehittyivät hänen käytyään 1930-luvun alussa ajattelussaan läpi metodologisen solipsismin vaiheen; esitän myös, että Wittgensteinin solipsismin kritiikki pohjautui ”minän” ja ”aistimuksen” käsitteiden kieliopilliseen tarkasteluun; ja että hän tulkitsi metafyysisen solipsismin lähteeksi taipumuksen käyttää tiettyjä käsitteitä irrotet…
A Contribution to the analysis of the first Spanish public-private partnership in primary and specialized maternity care: a social network analysis a…
2021
The La Ribera University Hospital (Alzira, Valencia) was the first experience of public-private partnership in the Spanish National Health System. In addition to the need to coordinate two levels of health care (primary/specialised), two models of human resource management (public/private) had to be coordinated. To illustrate this complexity, the group of midwives in the health area has been taken, analysing their relational patterns through the methodological approach of Social Network Analysis. In terms of results, out of a population of 31 midwives, those of the public model occupy peripheral positions and cooperate poorly, both internally and externally. However, those of the private mo…
Preparation and structure of the 17-electron (η5-C5R5)Mo(OH)2(dppe) (R=Me, Et) organometallic compounds containing two gem-terminal hydroxide ligands
2000
International audience; Oxidation of (η5-C5R5)MoH3(dppe) (R=Me, Et) by Cp2Fe+ in wet THF leads to the formation of the corresponding (η5-C5R5)Mo(OH)2(dppe). These compounds show a low-potential reversible oxidation wave. The structure of the C5Et5 complex has been confirmed by X-ray diffraction methods: triclinic; space group ; a=11.030(1); b=12.533(1); c=16.241 (1) Å; α=68.585(7); β=75.197(5); γ=83.991(7)°; V=2020.6(3) Å3; Z=2; Dcalc=1.324 g cm−3, μ(Mo–Kα)=0.441 mm−1; R1=0.0325; wR2=0.0875 for 415 parameters and 6823 independent reflections [Rint=0.0177] with I=2σ(I). The molecule shows a four-legged piano-stool geometry with two terminal OH ligands in a relative trans configuration. The c…
Adaptive Contention Resolution for VoIP Services in the IEEE 802.16 Networks
2007
In the IEEE 802.16 networks, a subscriber station can use the contention slots to send bandwidth requests to the base station. The contention resolution mechanism is controlled by the backoff start/end values and a number of the request transmission opportunities. These parameters are set by the base station and are announced to subscriber stations in the management messages. In the case of the VoIP services, it is critical that the contention resolution occurs within the specified time interval to meet the VoIP QoS requirements. Thus, it is the responsibility of the base station to set correct contention resolution parameters to ensure the QoS requirements. This paper presents analytical c…
Adaptive contention resolution parameters for the IEEE 802.16 networks
2007
In the IEEE 802.16 networks, the base station allocates resources to subscriber stations based on their QoS requirements and bandwidth request sizes. A subscriber station can send a bandwidth request when it has an uplink grant allocated by the base station or by taking part in the contention resolution mechanism. This paper presents analytical calculations for parameters that control the contention resolution process in the IEEE 802.16 networks. In particular, the backoff start/end values and the number of request transmission opportunities are considered. The simulation results confirm the correctness of theoretical calculations. They also reveal that the adaptive parameter tuning results…