Целевая аудитория: "Исследователь" (стр.35)
| Название: | Directional Self-Assembly of Zinc Oxide Micro- and Nanowires | 
|
| Автор ПГУ: | Аверин Игорь Александрович  Пронин Игорь Александрович Карманов Андрей Андреевич Якушова Надежда Дмитриевна | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2019 | |
| Дата загрузки: | 13.11.2019 | |
| Издательство: | Springer | |
|
ИР получен из базы данных "Scopus" автоматически
| ||
| Название: | Discrete Models in Research of Wave Processes in Rod Structures of Radio-Electronic Means |
|
| Автор ПГУ: | Лысенко Алексей Владимирович Юрков Николай Кондратьевич Трусов Василий Анатольевич | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2019 | |
| Дата загрузки: | 11.04.2019 | |
| Издательство: | DE GRUYTER POLAND SP ZOO, BOGUMILA ZUGA 32A STR., 01-811 WARSAW, POLAND | |
| Название: | Discreteness of the Leaky Wave Spectrum of an Open Inhomogeneous Metal–Dielectric Circular-Section Waveguide |
|
| Автор ПГУ: | Снегур Максим Олегович Смолькин Евгений Юрьевич | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2020 | |
| Дата загрузки: | 20.11.2020 | |
| Издательство: | Springer | |
|
ИР получен из базы данных "Scopus" автоматически
| ||
| Название: | Discreteness of the spectrum in the problem on normal waves in an open inhomogeneous waveguide |
|
| Автор ПГУ: | Смирнов Юрий Геннадьевич Смолькин Евгений Юрьевич | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2017 | |
| Дата загрузки: | 07.11.2018 | |
| Издательство: | Pleiades Publishing, USA | |
|
ИР получен из базы данных "Scopus" автоматически
| ||
| Название: | Dissipative Tunneling of Electrons in Vertically Coupled Double Asymmetric InAs/GaAs(001) Quantum Dots |
|
| Автор ПГУ: | Семенов Михаил Борисович Кревчик Владимир Дмитриевич Шорохов Алексей Владимирович Шкуринов Александр Павлович Кревчик Павел Владимирович Семенов Иван Михайлович | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Аннотация: | We report the results of experimental studies of the photoelectric properties of a p-i-n GaAs photodiode with InAs/GaAs(001) double asymmetric quantum dots (DAQDs) grown by self-assembling in the metal-organic vapor-phase epitaxy process. Three peaks were observed in the dependence of the photocurrent on the reverse bias measured at monochromatic photoexcitation of the DAQDs at the wavelength corresponding to the energy of interband optical transitions between the ground hole and electron states in the larger quantum dots (QDs). These peaks were related to the tunneling of the photoexcited electrons between the QDs, including a dissipative one (with emission and absorption of optical phonons). The experimental results agree qualitatively with the theoretical field dependence of the probability of 1D dissipative tunneling between QDs. | |
| Дата издания: | 2022 | |
| Дата загрузки: | 09.11.2022 | |
| Издательство: | Pleiades Publishing | |
| Название: | Distribution and origin of two forms of the marsh frog Pelophylax ridibundus complex (anura, ranidae) from kamchatka, based on mitochondrial and nuclear DNA data | 
|
| Автор ПГУ: | Ермаков Олег Александрович Титов Сергей Витальевич Сергей Марленович | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2019 | |
| Дата загрузки: | 10.11.2019 | |
| Издательство: | Pleiades Publishing, USA | |
|
ИР получен из базы данных "Scopus" автоматически
| ||
| Название: | Distribution of activities of alkaline carboxypeptidases in tissues of laboratory animals of different species |
|
| Автор ПГУ: | Щетинина Наталья Викторовна Салдаев Дамир Абесович Вернигора Александр Николаевич | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2002 | |
| Дата загрузки: | 29.11.2018 | |
| Издательство: | Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд) (Род-Таун) | |
|
ИР получен из базы данных "Scopus" автоматически
| ||
| Название: | Distribution of benthic testate amoeba assemblages along a water depth gradient in freshwater lakes of the Meshchera Lowlands, Russia, and utility of the microfossils for inferring past lake water level | 
|
| Автор ПГУ: | Малышева Елена Александровна Цыганов Андрей Николаевич | |
| Тематика: | биология, география | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Аннотация: | Testate amoebae are important components of benthic communities in freshwater lakes, where they play an essential role in decomposer food webs. They are used widely in paleoecological investigations because of their high taxonomic diversity, well-defined ecological preferences and decay-resistant tests. Studies of testate amoeba assemblages in lake surface sediments are necessary to better understand lake ecosystem function and improve the use of these organisms as bio-indicators in paleoecology. This study explored the use of testate amoebae as proxies for inferring past water level in freshwater lakes, and expanded upon the limited body of research into lake testate amoebae in Russia. Our results indicate that species composition of testate amoeba assemblages in the lakes was typical for such biotopes, with most of the species belonging to the genera Difflugia, Centropyxis, Arcella and Euglypha. Analysis of variation of testate amoebae along a water-depth gradient showed that three assemblage types could be distinguished: shallow-water (0–4.5 m), intermediate-water-depth (4.5–20.5) and deep-water (20.5–33 m). Deep-water assemblages did not contain any unique taxa and were dominated by eurybiotic and planktonic species. Species diversity was highest in the intermediate-water-depth assemblages and lowest in deep-water ones. Although variations in testate amoeba assemblages across water depth in freshwater lakes are complex and context-dependent, there are clear patterns in species composition and diversity, which can be used to infer past lake water levels. Future studies on the effect of water depth on testate amoeba assemblages in diverse types of freshwater lakes should increase the utility of the method. | |
| Дата издания: | 2019 | |
| Дата загрузки: | 26.10.2019 | |
| Издательство: | Springer | |
|
ИР получен из базы данных "Scopus" автоматически
| ||
| Название: | DISTRIBUTION OF SHEAR STRESSES AND ACTUAL CONTACT AREA ALONG THE LENGTH OF INTERFERENCE JOINTS AS A FACTOR OF THEIR TIGHTNESS |
|
| Автор ПГУ: | Курносов Николай Ефимович Накашидзе Юлия Юрьевна | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Аннотация: | С точки зрения обеспечения герметичности рассматриваются аспекты неравномерного распределения напряжений сдвига и фактической площади контакта по длине посадок с натягом. Показано, что фактическая площадь контакта неравномерна и соответствует неравномерному распределению напряжений сдвига. | |
| Дата издания: | 2023 | |
| Дата загрузки: | 22.11.2024 | |
| Издательство: | Russian Engineering Research | |
| Название: | Distribution of soil testate amoeba assemblages along an elevation gradient on Mount Fuji (Japan) |
|
| Автор ПГУ: | Чернышов Виктор Александрович | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2022 | |
| Дата загрузки: | 17.11.2022 | |
| Издательство: | ELSEVIER | |
| Название: | Distribution of the Noctule Bat (Nyctalus noctula) in Rostov Region and the Problem of Expansion of the Northern Boundary of Its Wintering Area |
|
| Автор ПГУ: | Смирнов Дмитрий Григорьевич | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2023 | |
| Дата загрузки: | 25.10.2024 | |
| Издательство: | Pleiades Publishing | |
| Название: | Diversification in the steppe rat snake Elaphe dione (Pallas, 1773) coincides with the Mid-Pleistocene climatic transition of Eurasia |
|
| Автор ПГУ: | Ермаков Олег Александрович | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Аннотация: | Background. The steppe rat snake, Elaphe dione, has one of the broadest terrestrial distributions among snakes. Its distribution spans from the Azov Sea and the Caucasus to the Pacific coast of Far East Asia. The steppe rat snake is one of the few reptile species with an extensive distribution in both the Western and Eastern Palearctic, making its evolutionary history of particular interest in understanding biogeographical patterns and connections between these regions. However, knowledge of its genetic variability and phylogeography remains limited. In this study, we examined the phylogeographic structure of E. dione to shed light on its genetic diversity and diversification history in the Western and Eastern Palearctic. Methods. We reconstructed phylogenies and analyzed the genetic structure of E. dione populations originating from most of its geographic range using three mitochondrial DNA gene fragments (12S rRNA, COI, ND4+tRNAs). In total, we analyzed sequences from 130 E. dione specimens from 100 locations. We used maximum likelihood and Bayesian inference methods to reconstruct phylogenetic trees, supplemented by an analysis of haplotype networks, molecular clocks, and a neutrality test for historical demography. Results. We identified 11 phylogeographic lineages grouped into three broader clades that diverged during the Late Miocene-Pliocene. The average uncorrected genetic distance between these 11 lineages ranged from 0.7% to 6.7% based on sequences of the COI fragment. Most of the contemporary range of E. dione is occupied by a single clade, with lineages distributed west and east of the Central Asian mountains. This west-east split in the clade occurred approximately 1.7 million years ago (Mya), followed by vicariant radiation in the Western and Eastern Palearctic during the Mid-Pleistocene era. Spatial patterns of mtDNA variation identified areas of post-last glacial maximum (LGM) dispersal and secondary contact zones of several lineages in the Altai and the Changbai Mountains. Discussion. Our study is the most comprehensive phylogeographic analysis of E. dione to date. The territory of central China most probably served as an ancestral area of this species, where E. dione diverged from its most recent common ancestor with E. bimaculata during the Late Miocene. The most active period of diversification in E. dione was estimated to have occurred later (∼1.3 Mya) than other widespread Palearctic species. Furthermore, this period is correlated across the species’ range and coincides with the beginning of the Mid-Pleistocene climatic transition. Climatic and environmental transitions during this period may have triggered the allopatric divergence of E. dione in multiple glacial refugia. Notably, diversification in the Western Palearctic resulted in a greater number of phylogeographic lineages, which could be linked to a greater number of suitable refugia. However, further evidence is needed to confirm these scenarios. | |
| Дата издания: | 2026 | |
| Дата загрузки: | 09.10.2026 | |
| Издательство: | Publisher PeerJ Inc. | |
| Название: | Diversity of trematodes from the amphibian anomaly P hotspot: Role of planorbid snails |
|
| Автор ПГУ: | Антон Олегович Ермаков Олег Александрович Иванов Александр Юрьевич | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Аннотация: | Trematode infection of the second intermediate hosts can lead to changes in their fitness and, as a result, a change in the invasion rate of animal communities. It is especially pronounced during the invasion of parasite species that reduce activity due to the manipulation of hosts through the changes of their morphology and physiology. One of these cases is an anomaly P syndrome hotspot found in some populations of water frogs and toads in Europe caused by the trematode Strigea robusta metacercariae. The occurrence of pathogen and their participation in ecosystems are intrigues questions in the anomaly P phenomenon, as well as the role of planorbid snails that serve as the first intermediate hosts for many trematode species. Herein, we focused on trematodes spectra from planorbid snails and amphibians from the anomaly P hosts with the aim to undetected interactions between the pathways of parasites. Emerging cercariae of 6802 planorbid snails of dominant species (Planorbarius corneus, Planorbis planorbis, and Anisus spp.) were detected by both morphological and molecular methods in seven waterbodies in Privolzhskaya Lesostep Nature Reserve (Russia). A total of 95 sequences of 18 species were received, and 48 sequences were unique and did not present in any genetic databases. The 18 species of trematodes from snails and 14 species of trematodes from amphibian hosts (Pelophylax ridibundus; Ranidae; Anura) were detected. Three species (Echinostoma nasincovae, Tylodelphys circibuteonis and Australapatemon burti) was new for the trematode fauna of the Middle Volga River region and Russia as a whole. Eleven species of parasitic flatworms have amphibians in their life cycles and nine species used amphibians as metacercariae hosts: Echinostoma nasincovae, E. miyagawai, Echinoparyphium recurvatum, Tylodelphys circibuteonis, Neodiplostomum spathula, Paralepoderma cloacicola, Macrodera longicollis, Strigea robusta, and Strigea strigis. The occurrence of trematode species from planorbid mollusks and frogs were compared. | |
| Дата издания: | 2023 | |
| Дата загрузки: | 23.10.2023 | |
| Издательство: | Public Library of Science | |
| Название: | Diversity, Phylogenetic Relationships and Distribution of Marsh Frogs (the Pelophylax ridibundus complex) from Kazakhstan and Northwest China | 
|
| Автор ПГУ: | Ермаков Олег Александрович | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Аннотация: | In order to study the diversity, phylogenetic relationships and distribution of marsh frogs of the Pelophylax ridibundus complex in Kazakhstan and northwest China, we conducted phylogeographic analyses of 125 samples from 53 localities using the mtDNA ND2 and COI genes and the SAI nuclear gene sequences. Phylogenetic inference of mtDNA revealed three main lineages—sister lineages Balkhash and Syrdarya (as the Central Asian P. sp. novum), and the Anatolian P. cf. bedriagae, while from nDNA data, we additionally detected the western form, P. ridibundus. According to mtDNA data, the mean genetic distances between P. sp. novum and two other forms of marsh frogs was more than 5%. Genetic homogeneity within populations of the Syrdarya lineage and P. cf. bedriagae is characterized by low nucleotide diversity and high haplotype diversity. Demographic analyses of the lineages showed past population expansions of the Balkhash and the Syrdarya forms. Divergence from the most recent ancestor had occurred in the Early Pleistocene period (2.46 Mya) for the Balkhash and the Syrdarya lineages, and 1.27 Mya for the P. cf. bedriagae. Our findings provide a first investigation of the lineage diversification and population dynamics of the Central Asian marsh frogs and will be useful for further taxonomic implications and conservational actions. | |
| Дата издания: | 2022 | |
| Дата загрузки: | 05.11.2022 | |
| Издательство: | Multidisciplinary Digital Publishing Institute (MDPI) | |
| Название: | Does the Colonizing Population Exhibit a Reduced Genetic Diversity and Allele Surfing? A Case Study of the Midday Gerbil (Meriones meridianus Pallas) Expanding Its Range |
|
| Автор ПГУ: | Титов Сергей Витальевич | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2024 | |
| Дата загрузки: | 21.11.2024 | |
| Издательство: | MDPI | |
| Название: | Does the Mediterranean water shrew Neomys anomalus (Soricidae, Eulipotyphla) expand the eastern part of the distribution range? |
|
| Автор ПГУ: | Ермаков Олег Александрович Быстракова Наталья Викторовна | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Аннотация: | The Mediterranean water shrew Neomys anomalus is sparsely distributed across the major part of Eastern Europe. There is a large amount of new information about the enlargement of the distribution range of the species during last 2 to 3 decades. We analysed species distribution, variation of cytochrome b gene and character of appearance of new records on species distribution. We suggest that the “expansion” of the Mediterranean water shrew is rather a result of more thorough faunal studies than of a natural expansion of the species range. | |
| Дата издания: | 2021 | |
| Дата загрузки: | 28.09.2021 | |
| Издательство: | KMK Scientific Press | |
| Название: | Dose-dependent effect of atorvastatin on the renal function in patients in the postinfarction period |
|
| Автор ПГУ: | Олейников Валентин Эливич Салямова Людмила Ивановна Томашевская Юлия Анатольевна Полежаева Кристина Николаевна | |
| Тематика: | медицина | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2021 | |
| Дата загрузки: | 17.11.2021 | |
| Издательство: | Elsevier | |
| Название: | DOUBLE PHOTO-IONIZATION OF TWO-ELECTRON IMPURITY CENTERS IN QUASI-ZERO-DIMENSIONAL STRUCTURES IN AN EXTERNAL MAGNETIC FIELD |
|
| Автор ПГУ: | Кревчик Владимир Дмитриевич Разумов Алексей Викторович | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2018 | |
| Дата загрузки: | 13.11.2018 | |
| Издательство: | Известия высших учебных заведений. Поволжский регион. Физико-математические науки | |
| Название: | DOUBLE PHOTO-IONIZATION OF TWO-ELECTRON IMPURITY CENTERS IN QUASI-ZERO-DIMENSIONAL STRUCTURES IN AN EXTERNAL MAGNETIC FIELD |
|
| Автор ПГУ: | Кревчик Владимир Дмитриевич Разумов Алексей Викторович | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2018 | |
| Дата загрузки: | 26.11.2018 | |
| Издательство: | Известия высших учебных заведений. Поволжский регион. Физико-математические науки | |
| Название: | Dynamic Model of Pressure Propagation from Artery into Cuff during Monitoring of Cardiovascular System |
|
| Автор ПГУ: | Геращенко Сергей Иванович Полосин Виталий Германович Геращенко Михаил Сергеевич Маркулева Марина Владимировна Демидов Андрей Владимирович | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2020 | |
| Дата загрузки: | 18.11.2020 | |
| Издательство: | Institute of Electrical and Electronics Engineers | |
|
ИР получен из базы данных "Scopus" автоматически
| ||