727 research outputs found
H. Kupś, M. Szatkowski, M. Dahl (red.), 70 lat Chińskiej Republiki Ludowej w ujęciu interdyscyplinarnym, Wydawnictwo Akademickie Dialog, Warszawa 2021, ss. 309.
Book reviewsRecenzj
Exhibiting the Holocaust at the Majdanek Concentration Camp and the Bergen-Belsen DP Camp
This article reconstructs and analyses the spaces and visual narratives of two particularly important early exhibitions organized by Holocaust survivors: the one at the Jewish Pavilion in the former Majdanek concentration camp in Lublin (September 1946), and ‘Unzer Veg in der Frayheyt’ (Our Path to Freedom) made in the displaced persons camp in Bergen-Belsen (July 1947).
Located in one of the barracks of the former concentration camp, the Jewish Pavilion in Majdanek was one of the first public commemorative sites expressing Jewish memory of the war in Poland. While presenting a history of the Holocaust, the display also established a space for mourning. ‘Our Path to Freedom’ was created on the occasion of the Second Congress of Liberated Jews in the British Zone. It also presented the Holocaust, while at the same time imagining the future life of survivors in Eretz Israel. Together, these exhibitions demonstrate the heterogeneity of Holocaust memory of that time. They pose questions about different ways of narrating history, pointing to exhibitions as a significant medium, while allowing for a combination of visual and spatial means of representation in order to create a multifaceted narrative about the past
Szczotki polimerowe jako materiały funkcjonalne.
W pracy omówiono problemy badawcze odnoszące się do syntezy i właściwości
szczotek polimerowych o zróżnicowanej topologii pojedynczej molekuły,
wynikającej z geometrii zastosowanego inicjatora. Powyższe materiały otrzymano
metodą polimeryzacji rodnikowej z przeniesieniem atomu (ATRP), stosując
jako inicjatory odpowiednio liniowe polimery, płaskie powierzchnie oraz sferyczne
cząstki.In this thesis, the topics, related to the synthesis and properties of polymer
brushes with different single molecule topology resulting from the varied
initiators used, have been discussed. Polymer brushes were synthesized by atom
transfer radical polymerization (ATRP) using linear, flat and spherical particles
with covalently anchored ATRP initiators, respectively
QRS fragmentation: Diagnostic and prognostic significance
Fragmentation of QRS (fQRS) complex is an easily evaluated non-invasive electrocardiographic
parameter. Fragmentation of narrow QRS is defined as presence of an additional R wave (R′)
or notching in the nadir of the S wave, or the presence of > 1 R′ in 2 contiguous leads,
corresponding to a major coronary artery territory on the resting 12-lead ECG. Fragmentation
of wide complex QRS consists of various RSR patterns, with more than 2 R waves (R′′) or
more than 2 notches in the R wave, or more than 2 notches in the downstroke or upstroke of the
S wave. Presence of fQRS has been associated with alternation of myocardial activation due to
myocardial scar and myocardial fibrosis. Initial studies reported higher sensitivity of fQRS
than Q wave for detecting myocardial scar and postulated that the presence of fQRS could be
a good predictor of cardiac events among the patients with coronary artery disease. The
presence of fQRS has been investigated among the patients with ischemic and non-ischemic
cardiomyopathy suggesting that this ECG parameter may affect prognosis and risk of sudden
cardiac death, risk of implantable cardioverter-defibrillator therapy and response to cardiac
resynchronization therapy. In addition, there is evidence that fQRS could play an important
role as screening and prognostic tool among the patients with Brugada syndrome, long QT
syndrome, arrhythmogenic right ventricular dysplasia and cardiac sarcoidosis. This paper
reviews definition, diagnostic and prognostic value of fQRS in different patient populations.
(Cardiol J 2012; 19, 2: 114–121
Fragmentation Coagulation Based Mixed Membership Stochastic Blockmodel
The Mixed-Membership Stochastic Blockmodel~(MMSB) is proposed as one of the
state-of-the-art Bayesian relational methods suitable for learning the complex
hidden structure underlying the network data. However, the current formulation
of MMSB suffers from the following two issues: (1), the prior information~(e.g.
entities' community structural information) can not be well embedded in the
modelling; (2), community evolution can not be well described in the
literature. Therefore, we propose a non-parametric fragmentation coagulation
based Mixed Membership Stochastic Blockmodel (fcMMSB). Our model performs
entity-based clustering to capture the community information for entities and
linkage-based clustering to derive the group information for links
simultaneously. Besides, the proposed model infers the network structure and
models community evolution, manifested by appearances and disappearances of
communities, using the discrete fragmentation coagulation process (DFCP). By
integrating the community structure with the group compatibility matrix we
derive a generalized version of MMSB. An efficient Gibbs sampling scheme with
Polya Gamma (PG) approach is implemented for posterior inference. We validate
our model on synthetic and real world data.Comment: AAAI 202
Zbigniew Geppert (1934-1982): Konstruktywizm to problem, a nie estetyka
A recent publication by the Muzeum Współczesne in Wrocław sheds light on a compelling, even though not yet fully acknowledged, practice of the Polish artist Zbigniew Geppert (1934-1982). The trajectory of Geppert’s artistic development was not uncommon for his time, as the artist studied respectively at the Warsaw Polytechnic, Ecole d’Architecture in Lausanne, Academy of Fine Arts in Warsaw and like many of his contemporaries treated science, design and art as necessarily complementary endeav..
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