21 research outputs found
ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½Π°Ρ ΠΌΠΎΠ΄Π΅Π»Ρ ΡΠ°Ρ Π°ΡΠ½ΠΎΠ³ΠΎ Π΄ΠΈΠ°Π±Π΅ΡΠ° 2-Π³ΠΎ ΡΠΈΠΏΠ° Ρ ΠΊΡΡΡ, Π²ΡΠ·Π²Π°Π½Π½Π°Ρ Π΄ΠΈΠ΅ΡΠΎΠΉ Ρ Π²ΡΡΠΎΠΊΠΈΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ ΠΆΠΈΡΠΎΠ² ΠΈ ΡΡΡΠ΅ΠΏΡΠΎΠ·ΠΎΡΠΎΡΠΈΠ½ΠΎΠΌ Π² Π½ΠΈΠ·ΠΊΠΎΠΉ Π΄ΠΎΠ·Π΅
Aim. To develop a pathogenetically reasonable model of type 2 diabetes with marked peripheral insulin resistanceΒ and relative insulin deficiency in rats using a high-fat diet and a single injection of streptozotocin in the low dose.Materials and methods. Experiments were conducted on 16 outbred male rats. Type 2 diabetes model inΒ experimental animals was achieved by feeding them with high-fat diet (55% of energy from fat) for 28 daysΒ followed by a single injection of streptozotocin (35 mg/kg). The serum glucose and insulin concentrations inΒ rats were measured before streptozotocin administration and at the end of the experiment. To estimate insulinΒ resistance, insulin tolerance test and glucose tolerance test were performed. Total protein, albumin, total and directΒ bilirubin, urea, uric acid, total cholesterol, high-density lipoproteins and low-density lipoproteins, and activity ofΒ alanine aminotransferase and aspartate aminotransferase were measured in the blood serum.Results. A high-fat diet with a single injection of streptozotocin resulted in lipid and protein metabolism disordersΒ and peripheral tissues insulin resistance in experimental animals. Basal insulin levels did not change against theΒ backdrop of high glucose level.Conclusions. These results indicate that feeding rats with a high-fat diet (55% of calories from fats) and a singleΒ administration of streptozotocin at a low dose (35 mg/kg) reproduce general pathological processes of type 2Β diabetes. This model can be used to study the pathogenesis of type 2 diabetes as well as to investigate the effect ofΒ potential hypoglycemic agents.Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°ΡΡ Ρ ΠΏΠΎΠΌΠΎΡΡΡ Π΄ΠΈΠ΅ΡΡ Ρ Π²ΡΡΠΎΠΊΠΈΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ ΠΆΠΈΡΠΎΠ² ΠΈ ΠΎΠ΄Π½ΠΎΠΊΡΠ°ΡΠ½ΠΎΠΉ ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠΈΒ ΡΡΡΠ΅ΠΏΡΠΎΠ·ΠΎΡΠΎΡΠΈΠ½Π° Π² Π½ΠΈΠ·ΠΊΠΎΠΉ Π΄ΠΎΠ·Π΅ ΠΏΠ°ΡΠΎΠ³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΠΈ ΠΎΠ±ΠΎΡΠ½ΠΎΠ²Π°Π½Π½ΡΡ ΠΌΠΎΠ΄Π΅Π»Ρ ΡΠ°Ρ
Π°ΡΠ½ΠΎΠ³ΠΎ Π΄ΠΈΠ°Π±Π΅ΡΠ° 2-Π³ΠΎ ΡΠΈΠΏΠ° Ρ ΠΊΡΡΡΒ Ρ Π²ΡΡΠ°ΠΆΠ΅Π½Π½ΠΎΠΉ ΠΏΠ΅ΡΠΈΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΈΠ½ΡΡΠ»ΠΈΠ½ΠΎΡΠ΅Π·ΠΈΡΡΠ΅Π½ΡΠ½ΠΎΡΡΡΡ ΠΈ ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΡΠΌ Π΄Π΅ΡΠΈΡΠΈΡΠΎΠΌ ΠΈΠ½ΡΡΠ»ΠΈΠ½Π°.ΠΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΡ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ Π½Π° 16 Π°ΡΡΠ±ΡΠ΅Π΄Π½ΡΡ
ΡΠ°ΠΌΡΠ°Ρ
ΠΊΡΡΡ. Π‘Π°Ρ
Π°ΡΠ½ΡΠΉ Π΄ΠΈΠ°Π±Π΅ΡΒ 2-Π³ΠΎ ΡΠΈΠΏΠ° ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π»ΠΈ ΠΊΠΎΡΠΌΠ»Π΅Π½ΠΈΠ΅ΠΌ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΆΠΈΠ²ΠΎΡΠ½ΡΡ
Π²ΡΡΠΎΠΊΠΎΠΆΠΈΡΠΎΠ²ΠΎΠΉ Π΄ΠΈΠ΅ΡΠΎΠΉ (55%Β ΠΊΠ°Π»ΠΎΡΠΈΠΉ Π·Π° ΡΡΠ΅Ρ ΠΆΠΈΡΠΎΠ²) Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ 28 ΡΡΡ Ρ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠ΅ΠΉ ΠΎΠ΄Π½ΠΎΠΊΡΠ°ΡΠ½ΠΎΠΉ ΠΈΠ½ΡΡΠ°ΠΏΠ΅ΡΠΈΡΠΎΠ½Π΅Π°Π»ΡΠ½ΠΎΠΉ ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠ΅ΠΉΒ ΡΡΡΠ΅ΠΏΡΠΎΠ·ΠΎΡΠΎΡΠΈΠ½Π° Π² Π΄ΠΎΠ·Π΅ 35 ΠΌΠ³/ΠΊΠ³. ΠΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΡ Π³Π»ΡΠΊΠΎΠ·Ρ ΠΈ ΠΈΠ½ΡΡΠ»ΠΈΠ½Π° Π² ΡΡΠ²ΠΎΡΠΎΡΠΊΠ΅ ΠΊΡΠΎΠ²ΠΈ ΠΊΡΡΡ ΠΈΠ·ΠΌΠ΅ΡΡΠ»ΠΈ Π΄ΠΎΒ Π²Π²Π΅Π΄Π΅Π½ΠΈΡ ΡΡΡΠ΅ΠΏΡΠΎΠ·ΠΎΡΠΎΡΠΈΠ½Π° ΠΈ ΠΏΠΎ ΠΎΠΊΠΎΠ½ΡΠ°Π½ΠΈΠΈ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°. ΠΠ»Ρ ΠΎΡΠ΅Π½ΠΊΠΈ ΠΈΠ½ΡΡΠ»ΠΈΠ½ΠΎΡΠ΅Π·ΠΈΡΡΠ΅Π½ΡΠ½ΠΎΡΡΠΈ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈΒ Π³Π»ΡΠΊΠΎΠ·ΠΎΡΠΎΠ»Π΅ΡΠ°Π½ΡΠ½ΡΠΉ ΠΈ ΠΈΠ½ΡΡΠ»ΠΈΠ½ΠΎΡΠΎΠ»Π΅ΡΠ°Π½ΡΠ½ΡΠΉ ΡΠ΅ΡΡΡ. Π ΡΡΠ²ΠΎΡΠΎΡΠΊΠ΅ ΠΊΡΠΎΠ²ΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ»ΠΈ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ ΠΎΠ±ΡΠ΅Π³ΠΎΒ Π±Π΅Π»ΠΊΠ°, Π°Π»ΡΠ±ΡΠΌΠΈΠ½ΠΎΠ², ΠΎΠ±ΡΠ΅Π³ΠΎ ΠΈ ΠΏΡΡΠΌΠΎΠ³ΠΎ Π±ΠΈΠ»ΠΈΡΡΠ±ΠΈΠ½Π°, ΠΌΠΎΡΠ΅Π²ΠΈΠ½Ρ, ΠΌΠΎΡΠ΅Π²ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ, ΠΎΠ±ΡΠ΅Π³ΠΎ Ρ
ΠΎΠ»Π΅ΡΡΠ΅ΡΠΈΠ½Π°,Β Ρ
ΠΎΠ»Π΅ΡΡΠ΅ΡΠΈΠ½Π° Π»ΠΈΠΏΠΎΠΏΡΠΎΡΠ΅ΠΈΠ½ΠΎΠ² Π²ΡΡΠΎΠΊΠΎΠΉ ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΠΈ ΠΈ Π½ΠΈΠ·ΠΊΠΎΠΉ ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΠΈ, Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ Π°Π»Π°Π½ΠΈΠ½Π°ΠΌΠΈΠ½ΠΎΡΡΠ°Π½ΡΡΠ΅ΡΠ°Π·ΡΒ ΠΈ Π°ΡΠΏΠ°ΡΡΠ°ΡΠ°ΠΌΠΈΠ½ΠΎΡΡΠ°Π½ΡΡΠ΅ΡΠ°Π·Ρ.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠΈΠ΅ΡΠ° Ρ Π²ΡΡΠΎΠΊΠΈΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ ΠΆΠΈΡΠΎΠ² Π² ΡΠΎΡΠ΅ΡΠ°Π½ΠΈΠΈ Ρ ΠΎΠ΄Π½ΠΎΠΊΡΠ°ΡΠ½ΠΎΠΉ ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠ΅ΠΉ ΡΡΡΠ΅ΠΏΡΠΎΠ·ΠΎΡΠΎΡΠΈΠ½Π°Β ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΠ»Π° Ρ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΆΠΈΠ²ΠΎΡΠ½ΡΡ
ΠΊ Π½Π°ΡΡΡΠ΅Π½ΠΈΡ Π»ΠΈΠΏΠΈΠ΄Π½ΠΎΠ³ΠΎ ΠΈ Π±Π΅Π»ΠΊΠΎΠ²ΠΎΠ³ΠΎ ΠΎΠ±ΠΌΠ΅Π½ΠΎΠ² ΠΈ ΡΠ°Π·Π²ΠΈΡΠΈΡΒ ΠΈΠ½ΡΡΠ»ΠΈΠ½ΠΎΡΠ΅Π·ΠΈΡΡΠ΅Π½ΡΠ½ΠΎΡΡΠΈ. Π£ΡΠΎΠ²Π΅Π½Ρ Π±Π°Π·Π°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΠ½ΡΡΠ»ΠΈΠ½Π° Π½Π΅ ΠΈΠ·ΠΌΠ΅Π½ΡΠ»ΡΡ Π½Π° ΡΠΎΠ½Π΅ Π²ΡΡΠ°ΠΆΠ΅Π½Π½ΠΎΠΉ Π³Π»ΠΈΠΊΠ΅ΠΌΠΈΠΈ.ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. ΠΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΡΡΡΠ²ΡΡΡ ΠΎ ΡΠΎΠΌ, ΡΡΠΎ ΠΏΡΠΈ ΠΊΠΎΡΠΌΠ»Π΅Π½ΠΈΠΈ ΠΊΡΡΡ Π΄ΠΈΠ΅ΡΠΎΠΉ Ρ Π²ΡΡΠΎΠΊΠΈΠΌΒ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ ΠΆΠΈΡΠΎΠ² ΠΈ ΠΎΠ΄Π½ΠΎΠΊΡΠ°ΡΠ½ΠΎΠΌ Π²Π²Π΅Π΄Π΅Π½ΠΈΠΈ ΡΡΡΠ΅ΠΏΡΠΎΠ·ΠΎΡΠΎΡΠΈΠ½Π° Π² Π½ΠΈΠ·ΠΊΠΎΠΉ Π΄ΠΎΠ·Π΅ (35 ΠΌΠ³/ΠΊΠ³) Π²ΠΎΡΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΡΡΒ ΠΏΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΡ, Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠ½ΡΠ΅ Π΄Π»Ρ ΡΠ°Ρ
Π°ΡΠ½ΠΎΠ³ΠΎ Π΄ΠΈΠ°Π±Π΅ΡΠ° 2-Π³ΠΎ ΡΠΈΠΏΠ°. Π‘ΠΎΠ·Π΄Π°Π½Π½Π°Ρ ΠΌΠΎΠ΄Π΅Π»Ρ ΠΌΠΎΠΆΠ΅ΡΒ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΡΡΡ Π΄Π»Ρ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΠΏΠ°ΡΠΎΠ³Π΅Π½Π΅Π·Π° ΡΠ°Ρ
Π°ΡΠ½ΠΎΠ³ΠΎ Π΄ΠΈΠ°Π±Π΅ΡΠ° 2-Π³ΠΎ ΡΠΈΠΏΠ°, Π° ΡΠ°ΠΊΠΆΠ΅ Π΄Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π΄Π΅ΠΉΡΡΠ²ΠΈΡΒ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΡΡ
Π³ΠΈΠΏΠΎΠ³Π»ΠΈΠΊΠ΅ΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΠ΅Π΄ΡΡΠ²
Using LROC WAC data for Lunar surface photoclinometry
All available lunar digital elevation models, e.g., SELENE LALT DEM, SELENE DTM LISM, ChangβE-1 LAM DEM, GLD100, SLDEM2015, have certain disadvantages, including insufficient resolution and/or the presence of defects as well as mismatching reference coordinate systems, making it difficult to incorporate the topographic effect on photometric LROC WAC observations. We here propose a photoclinometry technique that can be used to account for this effect. To do so, we modify our algorithm used to construct seamless photometric mosaics (Korokhin et al., PSS 2016, 122, 70β87) to determine local slopes simultaneously with parameters of photometric function during the mosaicing procedure. This technique can be useful for improvement of quality of remote sensing of surfaces with complex topography. We also develop a new algorithm for constructing the lunar digital elevation model based on the simultaneous use of laser altimetric measurements (LRO LOLA) and local longitudinal slopes obtained photoclinometrically from LROC WAC data. The algorithm provides a digital elevation model with accuracy and resolution not worse than SLDEM2015, yet demonstrating significantly fewer defects and artifacts. High-quality topo data can be useful for geology, geomorphology and for navigation/exploration/mission planning
Erratum to: βInteraction of electromagnetic radiation with a thin metal wire in the case of a glancing incident waveβ [journal of communications technology and electronics 62, 205 (2017)]
ΠΠΠΠ―Π ΠΠΠ‘Π―ΠΠΠΠΠ¬ Π Π’ΠΠ ΠΠΠΠ Π¦ΠΠΠΠ₯ ΠΠΠΠ£ΠΠΠΠΠ¦ΠΠΠΠΠ₯ Π‘ΠΠ‘Π’ΠΠΠΠ₯
This review paper gives an overview progress and problems of communications at a data rate of about 100 Gbit/s. The problem of increasing wireless data rate is priority for many research centers. It is proved that the frequency of about 300 GHz is most suitable to increase the data rate. In the last part of the paper, an overview of the state-of-the-art in technology development and successful demonstrations of data transmission and semiconductor devices with TGz-range cutoff frequency will be given.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΠΎΠ³Π»ΡΠ΄ Π΄ΠΎΡΡΠ³Π½Π΅Π½Ρ ΡΠ° ΠΏΡΠΎΠ±Π»Π΅ΠΌ Π² ΠΎΠ±Π»Π°ΡΡΡ ΡΠ΅ΡΠ°Π³Π΅ΡΡΠΎΠ²ΠΈΡ
ΠΊΠΎΠΌΡΠ½ΡΠΊΠ°ΡΡΠΉ, ΠΎΡΡΡΠ½ΡΠΎΠ²Π°Π½ΠΈΡ
Π½Π° ΡΠ²ΠΈΠ΄ΠΊΡΡΡΡ ΠΏΠ΅ΡΠ΅Π΄Π°Π²Π°Π½Π½Ρ Π΄Π°Π½ΠΈΡ
Π±Π»ΠΈΠ·ΡΠΊΠΎ 100 ΠΠ±ΡΡ/Ρ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΠΎ ΠΏΡΠΎΠ±Π»Π΅ΠΌΠ° Π·Π±ΡΠ»ΡΡΠ΅Π½Π½Ρ ΡΠ²ΠΈΠ΄ΠΊΠΎΡΡΡ Π±Π΅Π·Π΄ΡΠΎΡΠΎΠ²ΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅Π΄Π°Π²Π°Π½Π½Ρ Π΄Π°Π½ΠΈΡ
Ρ ΠΏΡΡΠΎΡΠΈΡΠ΅ΡΠ½ΠΎΡ Π΄Π»Ρ Π±Π°Π³Π°ΡΡΠΎΡ
Π΄ΠΎΡΠ»ΡΠ΄Π½ΠΈΡΡΠΊΠΈΡ
ΡΠ΅Π½ΡΡΡΠ². ΠΠΎΠ²Π΅Π΄Π΅Π½ΠΎ, ΡΠΎ ΡΠ°ΡΡΠΎΡΠ° Π±Π»ΠΈΠ·ΡΠΊΠΎ 300 ΠΠΡ Ρ Π½Π°ΠΉΠ±ΡΠ»ΡΡ ΠΏΡΠ΄Ρ
ΠΎΠ΄ΡΡΠΎΡ Π΄Π»Ρ Π·Π±ΡΠ»ΡΡΠ΅Π½Π½Ρ ΡΠ²ΠΈΠ΄ΠΊΠΎΡΡΡ ΠΏΠ΅ΡΠ΅Π΄Π°Π²Π°Π½Π½Ρ Π΄Π°Π½ΠΈΡ
. ΠΠΎΠ΄Π°Π½ΠΎ ΠΊΠΎΡΠΎΡΠΊΠΈΠΉ ΠΎΠ³Π»ΡΠ΄ Π½Π°ΠΏΡΠ²ΠΏΡΠΎΠ²ΡΠ΄Π½ΠΈΠΊΠΎΠ²ΠΈΡ
ΠΏΡΠΈΠ»Π°Π΄ΡΠ² Π· Π³ΡΠ°Π½ΠΈΡΠ½ΠΎΡ ΡΠ°ΡΡΠΎΡΠΎΡ, ΡΠΎ Π·Π½Π°Ρ
ΠΎΠ΄ΠΈΡΡΡΡ Π² ΡΠ΅ΡΠ°Π³Π΅ΡΡΠΎΠ²ΠΎΠΌΡ Π΄ΡΠ°ΠΏΠ°Π·ΠΎΠ½Ρ