258 research outputs found
Anomalous optical phonons in FeTe pnictides: spin state, magnetic order, and lattice anharmonicity
Polarized Raman-scattering spectra of non-superconducting, single-crystalline
FeTe are investigated as function of temperature. We have found a relation
between the magnitude of ordered magnetic moments and the linewidth of A1g
phonons at low temperatures. This relation is attributed to the intermediate
spin state (S=1) and the orbital degeneracy of the Fe ions. Spin-phonon
coupling constants have been estimated based on microscopic modeling using
density-functional theory and analysis of the local spin density. Our
observations show the importance of orbital degrees of freedom for the Fe-based
superconductors with large ordered magnetic moments, while small magnetic
moment of Fe ions in some iron pnictides reflects the low spin state of Fe ions
in those systems.Comment: 17 pages, 3 figure
ΠΠ΅Π»ΠΊΠΎΠ²ΠΎ-Π»ΠΈΠΏΠΈΠ΄Π½ΡΠΉ ΡΠΎΡΡΠ°Π² ΠΏΡΠ»ΡΡΡ Π±Π΅ΡΠ΅Π·Ρ Π±ΠΎΡΠΎΠ΄Π°Π²ΡΠ°ΡΠΎΠΉ (Betula verrucosa) ΠΈ Π΅Π΅ Π°Π½ΡΠΈΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½Π°Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π² Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΠΌΠ΅ΡΡΠ° ΠΏΡΠΎΠΈΠ·ΡΠ°ΡΡΠ°Π½ΠΈΡ
Pollen has various effects on the human body. In order to study and compare the biological activity of the mature pollen grains of Betula verrucosa Ehrh. we investigated the protein-lipid composition and total antioxidant activity (TAA) of 10 samples from different habitats in the territory of Ukraine and the Slovak Republic. The collection sites are near highways and apartment blocks, as well as a nature reserve, forest and botanical garden. The protein content was determined by the Kjeldahl method. A chromatographic analysis of fatty acids from lipids was performed using a βCvet 500β gas chromatograph, equipped with a flame-ionization detector in the isothermal mode. The bioactivity of aqueous, ethanol and methanol extracts of pollen grains was evaluated by the DPPH free radical scavenging method (2,2-diphenyl-1-picrylhydrazyl) by means spectrophotometry in vitro. The protein content of the pollen of B. verrucosa ranged from 17.9% to 25.6%, depending on the habitat. Unsaturated fatty acids were found in higher amounts than saturated fatty acids. The profile of fatty acids indicates a higher content of palmitic (33.9%), oleic (29.5%) and linoleic (27.8%) acids and a low content of arachidonic (0.4%) and pentadecanoic (0.8%) acids. We also established that silver birch pollen is characterized by high antioxidant activity. The measured value of TAA for aqueous pollen extracts was within 74.8β85.5%. For the ethanol extracts it was quantified within 60.3β95.0% and for the methanol extracts β 46.1β92.6%. The Tukey test was used to determine the differences between the means at a level of P < 0.05. A strong correlation coefficient (0.70) was defined between the protein content and the TAA of aqueous extracts. In general, the Ukrainian and Slovak samples of pollen differ in the fatty acid composition of lipids and aqueous and ethanol TAA extracts. Pollen of B. verrucosa should be used for diagnostic, therapeutic and prophylactic purposes as close as possible to the place of origin.Β ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ Π±Π΅Π»ΠΊΠΎΠ²ΡΠΉ ΠΈ Π»ΠΈΠΏΠΈΠ΄Π½ΡΠΉ ΡΠΎΡΡΠ°Π² ΠΈ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠ°Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ 10 ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΠΏΡΠ»ΡΡΡ Betula verrucosa Ehrh. ΠΈΠ· ΡΠ°Π·Π½ΡΡ
ΠΌΠ΅ΡΡ ΠΏΡΠΎΠΈΠ·ΡΠ°ΡΡΠ°Π½ΠΈΡ Π½Π° ΡΠ΅ΡΡΠΈΡΠΎΡΠΈΠΈ Π£ΠΊΡΠ°ΠΈΠ½Ρ ΠΈ Π‘Π»ΠΎΠ²Π°ΠΊΠΈΠΈ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΎ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ Π±Π΅Π»ΠΊΠΎΠ² (17,9β25,6%) ΠΈ 8 ΠΆΠΈΡΠ½ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ (Ρ ΡΠΈΡΠ»ΠΎΠΌ ΡΠ³Π»Π΅ΡΠΎΠ΄Π½ΡΡ
Π°ΡΠΎΠΌΠΎΠ² ΠΎΡ 14 Π΄ΠΎ 20) Π² ΡΠΎΡΡΠ°Π²Π΅ Π»ΠΈΠΏΠΈΠ΄ΠΎΠ². ΠΡΡΠ²Π»Π΅Π½ΠΎ ΠΏΡΠ΅ΠΎΠ±Π»Π°Π΄Π°Π½ΠΈΠ΅ Π½Π΅Π½Π°ΡΡΡΠ΅Π½Π½ΡΡ
ΠΆΠΈΡΠ½ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ (58,6%) Ρ Π΄ΠΎΠΌΠΈΠ½ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΏΠ°Π»ΡΠΌΠΈΡΠΈΠ½ΠΎΠ²ΠΎΠΉ (33,9%), ΠΎΠ»Π΅ΠΈΠ½ΠΎΠ²ΠΎΠΉ (29,5%) ΠΈ Π»ΠΈΠ½ΠΎΠ»Π΅Π²ΠΎΠΉ (27,8%). ΠΡΠ΅Π½Π΅Π½Π° ΠΎΠ±ΡΠ°Ρ Π°Π½ΡΠΈΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½Π°Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π²ΠΎΠ΄Π½ΡΡ
, ΡΡΠ°Π½ΠΎΠ»ΠΎΠ²ΡΡ
ΠΈ ΠΌΠ΅ΡΠ°Π½ΠΎΠ»ΠΎΠ²ΡΡ
ΡΠΊΡΡΡΠ°ΠΊΡΠΎΠ² ΠΏΡΠ»ΡΡΡ Π±Π΅ΡΠ΅Π·Ρ Π±ΠΎΡΠΎΠ΄Π°Π²ΡΠ°ΡΠΎΠΉ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΠ²ΠΎΠ±ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΡΡΠ°Π±ΠΈΠ»ΡΠ½ΠΎΠ³ΠΎ ΡΠ°Π΄ΠΈΠΊΠ°Π»Π° Π΄ΠΈΡΠ΅Π½ΠΈΠ»ΒΠΏΠΈΠΊΡΠΈΠ»Π³ΠΈΠ΄ΡΠ°Π·ΠΈΠ»Π° ΠΊΠΎΠ»ΠΎΡΠΈΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΈ Π² ΡΠ΅Π°ΠΊΡΠΈΠΈ in vitro. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈ Π΄ΠΎΡΡΠΎΠ²Π΅ΡΠ½ΡΠ΅ ΡΠ°Π·Π»ΠΈΡΠΈΡ ΠΌΠ΅ΠΆΠ΄Ρ ΠΎΠ±ΡΠ°Π·ΡΠ°ΠΌΠΈ ΠΊΠ°ΠΊ Π²Π½ΡΡΡΠΈ ΡΠΊΡΠ°ΠΈΠ½ΡΠΊΠΈΡ
ΠΈ ΡΠ»ΠΎΠ²Π°ΡΠΊΠΈΡ
Π³Π΅Π½ΠΎΡΠΈΠΏΠΎΠ², ΡΠ°ΠΊ ΠΈ ΠΌΠ΅ΠΆΠ΄Ρ Π½ΠΈΠΌΠΈ. Π Π°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°ΡΡΡΡ ΡΠ°ΠΊΡΠΎΡΡ Π²Π»ΠΈΡΠ½ΠΈΡ Π½Π° Π²Π°ΡΠΈΠ°ΡΠΈΠΈ Π±Π΅Π»ΠΊΠΎΠ²ΠΎ-Π»ΠΈΠΏΠΈΠ΄Π½ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°Π²Π° ΠΏΡΠ»ΡΡΡ ΠΈ Π΅Π΅ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ.ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ Π±Π΅Π»ΠΊΠΎΠ²ΡΠΉ ΠΈ Π»ΠΈΠΏΠΈΠ΄Π½ΡΠΉ ΡΠΎΡΡΠ°Π² ΠΈ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠ°Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ 10 ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΠΏΡΠ»ΡΡΡ Betula verrucosa Ehrh. ΠΈΠ· ΡΠ°Π·Π½ΡΡ
ΠΌΠ΅ΡΡ ΠΏΡΠΎΠΈΠ·ΡΠ°ΡΡΠ°Π½ΠΈΡ Π½Π° ΡΠ΅ΡΡΠΈΡΠΎΡΠΈΠΈ Π£ΠΊΡΠ°ΠΈΠ½Ρ ΠΈ Π‘Π»ΠΎΠ²Π°ΠΊΠΈΠΈ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΎ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ Π±Π΅Π»ΠΊΠΎΠ² (17,9β25,6%) ΠΈ 8 ΠΆΠΈΡΠ½ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ (Ρ ΡΠΈΡΠ»ΠΎΠΌ ΡΠ³Π»Π΅ΡΠΎΠ΄Π½ΡΡ
Π°ΡΠΎΠΌΠΎΠ² ΠΎΡ 14 Π΄ΠΎ 20) Π² ΡΠΎΡΡΠ°Π²Π΅ Π»ΠΈΠΏΠΈΠ΄ΠΎΠ². ΠΡΡΠ²Π»Π΅Π½ΠΎ ΠΏΡΠ΅ΠΎΠ±Π»Π°Π΄Π°Π½ΠΈΠ΅ Π½Π΅Π½Π°ΡΡΡΠ΅Π½Π½ΡΡ
ΠΆΠΈΡΠ½ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ (58,6%) Ρ Π΄ΠΎΠΌΠΈΠ½ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΏΠ°Π»ΡΠΌΠΈΡΠΈΠ½ΠΎΠ²ΠΎΠΉ (33,9%), ΠΎΠ»Π΅ΠΈΠ½ΠΎΠ²ΠΎΠΉ (29,5%) ΠΈ Π»ΠΈΠ½ΠΎΠ»Π΅Π²ΠΎΠΉ (27,8%). ΠΡΠ΅Π½Π΅Π½Π° ΠΎΠ±ΡΠ°Ρ Π°Π½ΡΠΈΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½Π°Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π²ΠΎΠ΄Π½ΡΡ
, ΡΡΠ°Π½ΠΎΠ»ΠΎΠ²ΡΡ
ΠΈ ΠΌΠ΅ΡΠ°Π½ΠΎΠ»ΠΎΠ²ΡΡ
ΡΠΊΡΡΡΠ°ΠΊΡΠΎΠ² ΠΏΡΠ»ΡΡΡ Π±Π΅ΡΠ΅Π·Ρ Π±ΠΎΡΠΎΠ΄Π°Π²ΡΠ°ΡΠΎΠΉ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΠ²ΠΎΠ±ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΡΡΠ°Π±ΠΈΠ»ΡΠ½ΠΎΠ³ΠΎ ΡΠ°Π΄ΠΈΠΊΠ°Π»Π° Π΄ΠΈΡΠ΅Π½ΠΈΠ»ΒΠΏΠΈΠΊΡΠΈΠ»Π³ΠΈΠ΄ΡΠ°Π·ΠΈΠ»Π° ΠΊΠΎΠ»ΠΎΡΠΈΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΈ Π² ΡΠ΅Π°ΠΊΡΠΈΠΈ in vitro. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈ Π΄ΠΎΡΡΠΎΠ²Π΅ΡΠ½ΡΠ΅ ΡΠ°Π·Π»ΠΈΡΠΈΡ ΠΌΠ΅ΠΆΠ΄Ρ ΠΎΠ±ΡΠ°Π·ΡΠ°ΠΌΠΈ ΠΊΠ°ΠΊ Π²Π½ΡΡΡΠΈ ΡΠΊΡΠ°ΠΈΠ½ΡΠΊΠΈΡ
ΠΈ ΡΠ»ΠΎΠ²Π°ΡΠΊΠΈΡ
Π³Π΅Π½ΠΎΡΠΈΠΏΠΎΠ², ΡΠ°ΠΊ ΠΈ ΠΌΠ΅ΠΆΠ΄Ρ Π½ΠΈΠΌΠΈ. Π Π°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°ΡΡΡΡ ΡΠ°ΠΊΡΠΎΡΡ Π²Π»ΠΈΡΠ½ΠΈΡ Π½Π° Π²Π°ΡΠΈΠ°ΡΠΈΠΈ Π±Π΅Π»ΠΊΠΎΠ²ΠΎ-Π»ΠΈΠΏΠΈΠ΄Π½ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°Π²Π° ΠΏΡΠ»ΡΡΡ ΠΈ Π΅Π΅ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ
ANALYTIC FUNCTIONS OF INFINITE ORDER IN HALF-PLANE
J. B. Meles (1979) considered entire functions with zeros restricted to a finite number of rays. In particular, it was
proved that if is an entire function of infinite order with zeros
restricted to a finite number of rays, then its lower order equals
infinity. In this paper, we prove a similar result for a class of functions analytic in the upper half-plane. The analytic function in
C+ = { : Im > 0} is called proper analytic if lim sup(zβt)β‘( lnβ‘|f(z)|)β€0
for all real numbers β R. The class of the proper analytic functions is denoted by . The full measure of a function β is
a positive measure, which justifies the term "proper analytic function". In this paper, we prove that if a function is the proper
analytic function in the half-plane C+ of infinite order with zeros
restricted to a finite number of rays L through the origin, then its
lower order equals infinity
Phase separation in iron chalcogenide superconductor Rb0.8+xFe1.6+ySe2 as seen by Raman light scattering and band structure calculations
We report Raman light scattering in the phase separated superconducting
single crystal Rb0.77Fe1.61Se2 with Tc = 32 K. The spectra have been measured
in a wide temperature range 3K -500K. The observed phonon lines from the
majority vacancy ordered Rb2Fe4Se5 (245) antiferromagnetic phase with TN= 525 K
demonstrate modest anomalies in frequency, intensity and halfwidth at the
superconductive phase transition. We identify phonon lines from the minority
compressed Rb{\delta}Fe2Se2 (122) conductive phase. The superconducting gap
with dx2-y2 symmetry is also detected in our spectra. In the range 0-600 cm-1
we observed the low intensive but highly polarized B1g-type background which
becomes well structured under cooling. The possible magnetic or multiorbital
origin of this background has been discussed. We argue that phase separation in
M0.8+xFe1.6+ySe2 has pure magnetic origin. It occurs below Neel temperature
when iron magnetic moment achieves some critical magnitude. We state that there
is a spacer between the majority 245 and minority 122 phases. Using ab-initio
spin polarized band structure calculations we demonstrate that compressed
vacancy ordered Rb2Fe4Se5 phase can be conductive and therefore may serve as a
protective interface spacer between the pure metallic Rb{\delta}Fe2Se2 phase
and the insulating Rb2Fe4Se5 phase providing the percolative Josephson-junction
like superconductivity in the whole sample of Rb0.8+xFe1.6+ySe2 Our lattice
dynamics calculations show significant difference in the phonon spectra of the
conductive and insulating Rb2Fe4.Se5 phases.Comment: This paper is devoted to the memory of academician Kirill Borisovich
Tolpygo, prominent Physicist, Teacher and Citizen, who made a great
contribution to the lattice dynamics theory and many other branches of solid
state physic
Contamination of Betula verrucosa Ehrh. pollen by microorganisms, mycotoxins and heavy metals
Pollen samples of silver birch from Ukraine and Slovakia were investigated in order to estimate their contamination with heavy metals (Cd, Pb, Hg, Cr, As, Ni, Se, Co), representatives of the Enterobacteriaceae family, mesophilic aerobic bacteria, fungi and mycotoxins. The study is focused on the comparative analysis among pollen samples when complex of biotic, abiotic and anthropogenic factors in different places of growth affect. The obtained results are compared to the existing requirements. It is established excess of limits on the content of cadmium, lead, chromium, the concentrations of enterobacteria and mesophilic aerobic bacteria in some samples of birch pollen. The Tukey test was used to determine the differences between the means at a level of P < 0.05. Also in this work, the steps from collection to storage of wind-pollinated pollen were analyzed
ACILE SOL-GEL SYNTHESIS OF METAL OXIDE NANOPARTICLES IN A CELLULOSE PAPER TEMPLATE
Ensembles of free standing particles of titanium, zinc, copper and iron oxides of 6-109 nm in size were sol-gel synthesized with a use of a cellulose paper as a template. The calcination time as short as 60 min at 550 Β°C in air was found to be sufficient for the formation of crystalline single phase TiO2 or ZnO nanoparticles, Cu2O+CuO or Fe2O3+Fe3O4 nanocomposites and to burn out the organic components. The impurities initially present in the cellulose (Π‘a, Na, Cl) were detected in the synthesized compounds. The original version of the paper was stolen by James Franklin and on-line published with the cut list of the authors in Journal of Nanomedicine and Nanotechnology 2017 without author permission
Modern view of the problem of missed abortion
Non-developing pregnancy is an urgent obstetric problem, which is included in the structure of reproductive losses and. The authors performed a systematic analysis of the data presented in the modern scientifi c literature on the epidemiology, etiology, pathogenesis, and diagnosis of non-developing pregnancy. Th e review includes data from foreign and domestic articles on this topic found in PubMed over the past 7 years
The Sand Cement Composites Using Municipal Solid Waste
Π‘Π΅ΠΊΡΠΈΡ III : Π Π΅ΡΡΡΡΠΎ- ΠΈ ΡΠ½Π΅ΡΠ³ΠΎΡΠ±Π΅ΡΠ΅Π³Π°ΡΡΠΈΠ΅ ΡΡΡΠΎΠΈΡΠ΅Π»ΡΠ½ΡΠ΅ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ ΠΈ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ²Π΅Π΄ΠΎΠ², Π² ΠΏΠΎΡΠ»Π΅Π΄Π½Π΅Π΅ Π²ΡΠ΅ΠΌΡ, Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½Ρ Π½Π° ΡΠΎΠ·Π΄Π°Π½ΠΈΠ΅ Π½ΠΎΠ²ΡΡ
ΠΈ ΡΠΎΠ²Π΅ΡΡΠ΅Π½ΡΡΠ²ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ²ΠΎΠΉΡΡΠ² ΡΠΆΠ΅ Π·Π°ΡΠ΅ΠΊΠΎΠΌΠ΅Π½Π΄ΠΎΠ²Π°Π²ΡΠΈΡ
ΡΠ΅Π±Ρ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ², Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π²ΡΠΎΡΠΈΡΠ½ΠΎΠ³ΠΎ ΡΡΡΡΡ. Π Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠΈΠ²Π΅Π΄Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΏΠΎ ΡΡΠΈΠ»ΠΈΠ·Π°ΡΠΈΠΈ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΡΡ
ΠΊΠΎΠΌΠΌΡΠ½Π°Π»ΡΠ½ΡΡ
ΠΎΡΡ
ΠΎΠ΄ΠΎΠ² Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΡΠΈΠ±ΡΡ Π² ΡΠ΅ΠΌΠ΅Π½ΡΠ½ΠΎ-ΠΏΠ΅ΡΡΠ°Π½ΡΡ
ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ°Ρ
Π½Π° Π±Π°Π·Π΅ ΠΌΠ΅ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠΈΠ½Π΅ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΡΡΡΡ. ΠΠ°Π½ Π°Π½Π°Π»ΠΈΠ· ΡΠΈΡΡΠ°ΡΠΈΠΈ ΠΏΠΎ Π½Π°ΠΊΠΎΠΏΠ»Π΅Π½ΠΈΡ ΡΠ²Π΅ΡΠ΄ΡΡ
ΠΊΠΎΠΌΠΌΡΠ½Π°Π»ΡΠ½ΡΡ
ΠΎΡΡ
ΠΎΠ΄ΠΎΠ², ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΡΠ΅Π½Π΄Π΅Π½ΡΠΈΠΈ ΡΡΠΈΠ»ΠΈΠ·Π°ΡΠΈΠΈ ΠΈΡ
Π² ΠΌΠΈΡΠΎΠ²ΠΎΠΉ ΠΈ ΡΠΎΡΡΠΈΠΉΡΠΊΠΎΠΉ ΠΏΡΠ°ΠΊΡΠΈΠΊΠ΅. ΠΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π΅Π½Ρ ΡΠ΅Π°Π»ΡΠ½ΡΠ΅ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΡΡ
ΠΎΡΡ
ΠΎΠ΄ΠΎΠ² ΠΊΠ°ΠΊ Π²ΡΠΎΡΠΈΡΠ½ΠΎΠ³ΠΎ ΡΡΡΡΡ Π΄Π»Ρ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π° ΡΡΡΠΎΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ².=Recently, research of materials scientists has been aimed at creating new and improving the properties of already proven materials using secondary raw materials. Article analysis findings on the utilization of polymer municipal waste as fibra in sand cement composites, which based on local mineral raw materi-als. Analysis of the existing state on concentration of municipal solid waste is given, tendencies of their utilization in world and Russian practice are considered. The real opportunities of using polymer wastes as secondary raw materials for the production of building materials have been confirmed
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