821 research outputs found
Гендерні стратегії в українській літературі кінця ХІХ – початку ХХ віку: корекція традиційних жіночих образів (Gender Strategies in the Ukrainian Literature in the end of ХIX – Beginning ХX Century: Correction of the Traditional Female Images)
У статті доведено, що гендерні стратегії модерної літератури найвиразніше сфокусувалися саме в моделюванні
концепції головної героїні, яка й стає носієм авторської свідомості.
На основі текстуального аналізу оповідання Лесі
Українки «Над морем» виокремлено дві художньо-світоглядні
матриці
жіночих
образів:
«нова»
жінка,
що
є
уособленням
особистісної
зрілості, і героїня, яка втілює тип роздвоєної
особистості. (Female literature in the cultural situation of modern was a significant
phenomenon.
Gender
strategies
most
clearly
focused
on
modeling
concepts
of
the
main
heroine,
which
becomes
the
carrier
of
author’s
consciousness.
It
is
worth
noting
the
fundamental
difference
between
the
new
heroine
and
representations
of
the
previous
artistic
system.
Widespread
in
the
Ukrainian
cultural
canon
modus
of heroine-victim in female writing is offset, but instead
comes the type of self- contained person.
In the artistic practice of Lesya Ukrainka transformation of
traditional female images was realised through the typical for
the modernism modus of psychologization. The story «Over Sea»
was based on the reception of contrast. The two heroines are the
exponents of opposing ideas, that’s why the author clearly polarize
characters.
The
narrator
is
presented
as
a type of «new»
woman: purposeful, intelligent, self-contained, she loves nature
and books. The heroine is the female personification of personal
maturity. Contrary to this heroine, Alla Myhailivna is modeled
as infantile character. The meaning of her life is the search for
pleasure, through clothing, relationships with men, extreme entertainments.
However,
this
choice
leads
to
psychological
discomfort
and
frustration.
She
embodies
the
type
of
bifurcated
personality,
because
she
finds
herself
in
a
situation
as
lack
of
life
perspective
when
traditional
practices
do
not
satisfy
women,
and
modern
are
available.
The
writer
focuses
on
the
boredom
and
emptiness,
as
a
dominant
world
view
of
women
that
is
formed
by
the
patriarchal
family
upbringing,
physical
illness,
gender
stereotypes
and
social
status.
Actually,
the
permanent
being
in
a
situation
of
choice,
but
here
–
tragic
defenceless
of
inner
world,
is
one
of
the
distinguishing
features of literary hero of the modern era.
Гендерний вимір тоталітарного насильства у сучасній жіночій прозі (Gender dimension of totalitarian violence in contemporary women's fiction)
У статті на прикладі творів Людмили Таран, Марії Матіос,
Теодозії Зарівни аналізуються художні спроби переосмислення
минулого
з
акцентуванням
проблеми
травматичної
жіночої
тілесності
в
умовах
репресивних
практик
тоталітарного
режиму. (The article is an example of works of Lyudmula Taran, Mariya
Matios, Teodosia Zarivna analyzed сheck the level of art attempts
to re-focusing the past traumatic problems of female physicality in
terms of repressive practices of the totalitarian regime
Methanesulfonyl Fluoride: A Probe of Substrate Interactions in the Catalytic Site of Acetylcholinesterase
Methanesulfonyl fluoride, which reacts at the catalytic S!ite
of acetylcholinesterase causing inactivation, is a useful probe of
substrate binding. This is because molecules absorbed in or near
the active center appear to protect the enzyme only if, by interacting
strongly with the esteratic s.ite, they physically obstruct its
approach. Its reaction is not disturbed by non-specific adsorption
of these molecules in regions adjoining the active center, and ~s
comparatively insensitive to conditions that reversibly denature the
enzyme. The binding of three classes of substrates is discussed:
acetylcholine analogs, phenyl esters, and indophenyl acetate. Acetylcholine fits into an active center crevice and covers both the anionic and esteratic sites, but bulkier analogs, which cannot fully penetrate, are held primarily at the anionic site and adjoining non-polar
regions, with weak and intermittent attraction to the esteratic site.
Phenyl esters are bound within the crevice, over the esteratic site.
Indophenyl acetate is adsorbed on the margin of the active center,
covering neither the anionic nor esteratic site
Symmetries of Helmholtz forms and globally variational dynamical forms
Invariance properties of classes in the variational sequence suggested to
Krupka et al. the idea that there should exist a close correspondence between
the notions of variationality of a differential form and invariance of its
exterior derivative. It was shown by them that the invariance of a closed
Helmholtz form of a dynamical form is equivalent with local variationality of
the Lie derivative of the dynamical form, so that the latter is locally the
Euler--Lagrange form of a Lagrangian. We show that the corresponding local
system of Euler--Lagrange forms is variationally equivalent to a global
Euler--Lagrange form.Comment: Presented at QTS7 - Quantum Theory and Symmetries VII, Prague
7-13/08/201
The Comparative Biochemistry of Mammalian and Insect Acetylcholinesterase with Reference to the Selective Inhibition by Organophosphates and Carbamates
Acetylcholinesterases from bovine erythrocytes and housefly
heads are compared with respect to binding of substrates and
reversible cationic inhibitors, effects of the latter on reaction with
methane sulfonyl fluoride, and inactivation by organophosphofus
and carbamate inhibitors. The observations show that a hydrophobic
region is present outside the catalytic centre, which is considerably
broader and more accessible in the insect enzyme. Phosphate
and carbamate inhibitors can interact productively with
this region, whereas such interactions would be detrimental to true
substrates, diminishing their rates of reaction. It is this broader
hydrophobic region, rather than wider separation of the anionic and
esteratic sites, that accounts for acceleration of methane sulfonyl
fluoride reaction by large cations and accommodation of bulky
irreversible inhibitors in fly acetylcholinesterase. It is concluded
that the greater selectivity for fly acetylcholinesterase of many
organophosphates and carbamates may primarily depend on recognition
of distinctive features around, rather than in, the active
centre
The Comparative Biochemistry of Mammalian and Insect Acetylcholinesterase with Reference to the Selective Inhibition by Organophosphates and Carbamates
Acetylcholinesterases from bovine erythrocytes and housefly
heads are compared with respect to binding of substrates and
reversible cationic inhibitors, effects of the latter on reaction with
methane sulfonyl fluoride, and inactivation by organophosphofus
and carbamate inhibitors. The observations show that a hydrophobic
region is present outside the catalytic centre, which is considerably
broader and more accessible in the insect enzyme. Phosphate
and carbamate inhibitors can interact productively with
this region, whereas such interactions would be detrimental to true
substrates, diminishing their rates of reaction. It is this broader
hydrophobic region, rather than wider separation of the anionic and
esteratic sites, that accounts for acceleration of methane sulfonyl
fluoride reaction by large cations and accommodation of bulky
irreversible inhibitors in fly acetylcholinesterase. It is concluded
that the greater selectivity for fly acetylcholinesterase of many
organophosphates and carbamates may primarily depend on recognition
of distinctive features around, rather than in, the active
centre
On a Order Reduction Theorem in the Lagrangian Formalism
We provide a new proof of a important theorem in the Lagrangian formalism
about necessary and sufficient conditions for a second-order variational system
of equations to follow from a first-order Lagrangian.Comment: 9 pages, LATEX, no figures; appear in Il Nuovo Cimento
Modified permittivity observed in bulk Gallium Arsenide and Gallium Phosphide samples at 50 K using the Whispering Gallery mode method
Whispering Gallery modes in bulk cylindrical Gallium Arsenide and Gallium
Phosphide samples have been examined both in darkness and under white light at
50 K. In both samples we observed change in permittivity under light and dark
conditions. This results from a change in the polarization state of the
semiconductor, which is consistent with a free electron-hole
creation/recombination process. The permittivity of the semiconductor is
modified by free photocarriers in the surface layers of the sample which is the
region sampled by Whispering Gallery modes.Comment: 8 pages, 3 figure
Reversible recording medium based on optical storage of information, method of reversible recording on such a medium.
A reversible recording medium based on optical storage of at least one item ofinformation within a support material, includes at least one layer of support material having: base molecules able to take, in a local zone, a first collective state of molecules able to generate a first signal of second harmonic characteristic of this first collective state of molecules when excited by electromagnetic reading radiation; the base molecules having the first collective state of molecules able to transform, at least in part, into transformed molecules so as to pass to a second collective state of molecules when excited by electromagnetic writing radiation, the molecules having the second collective state of molecules able to generate a second signal of second harmonic characteristic of this second collective state of molecules when excited by the electromagnetic reading radiation. The molecules exhibit a molecular structure based on a coumarin skeleton of Formula (I)
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