Издательство: "Multidisciplinary Digital Publishing Institute (MDPI)"
| Название: | A new climate nowcasting tool based on paleoclimatic data | 
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| Автор ПГУ: | Цыганов Андрей Николаевич  | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2020 | |
| Дата загрузки: | 23.11.2020 | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | A new record of Bufo gargarizans complex (Bufonidae, Anura) from Truong Son Mounts, Ha Tinh and Ha Giang Provinces, Vietnam based on molecular evidence with a description of a new species |
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| Автор ПГУ: | Ермаков Олег Александрович | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Аннотация: | Based on a combination of molecular and morphological data, we herein report a new species within the bufonid Bufo gargarizans species complex. This is a widespread species complex with distribution from eastern Russia and the Korean Peninsula to China and the Ryukyu Islands of Japan. Records of this species have been documented in the Guangxi and Yunnan Provinces near the border with Vietnam and, for the first time from Vietnam, in Ha Giang Province. The new record of Bufo cf. gargarizans from Vietnam is from Ha Tinh Province. This species has never been reported from Vietnam so far south, about 550 km south from the previously known locality in Ha Giang Province. The female specimen was found in the Ha Tinh Province, Vu Quang National Park of central Vietnam and two specimens (male and female) were found Ha Giang Province. They are clearly distinguished from B. gargarizans and all the mentioned species by a specific color pattern on the belly and creamy-yellowish throat with large, bright red speckles. Genetic divergences of three Vietnam specimens from Ha Giang and Ha Tinh Provinces in the ND2 gene sequences between the B. sp. nov. and all other congeners ranged from 4.3% (with B. andrewsi) to 7.0% (with B. stejnegeri). We give a description of the morphological characters and coloration of the new record and provide an expanded diagnosis. | |
| Дата издания: | 2024 | |
| Дата загрузки: | 13.10.2024 | |
| Название: | A Review of Bat Fleas (Siphonaptera: Ischnopsyl-lidae) from Russia |
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| Автор ПГУ: | Смирнов Дмитрий Григорьевич Малявина Мария Сергеевна | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Журнал | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2025 | |
| Дата загрузки: | 29.10.2025 | |
| Название: | A Theoretical Review of Socio-Economic Dynamics and Structural Transformation of Society: Traits and Constraints in Validating Response Processes Due to Unpredictable Factors |
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| Автор ПГУ: | Васин Сергей Михайлович | |
| Тематика: | экономика | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь, Преподаватель, Учащийся | |
| Аннотация: | To investigate and create theories of socio-economic dynamics has always been relevant for professionals in theoretical and applied economics. These theories are urgent in periods of global and catastrophic events since, on the one hand, they can explain the emergence of critical structural changes in society, and on the other hand, they can determine the likelihood of surviving of crisis processes. However, there are some drawbacks involved therein, and the poor ability to predict unexpected and shocking events, such as the COVID-19 pandemic, is a key one. The presented review outlines transformation patterns of socio-economic systems stemming from diverse contradictions. Some widely known transformation theories of socio-economic systems are presented. The major traits of such theories and specific approaches to explaining the features of the emergence and development of dynamic processes are demonstrated. The feasibility of practical application, as well as constraints in explaining and predicting the transformation of society, is indicated. Some theories that consider the transformation of society as a distinct process are specified, and approaches that characterize major transformations as elements of socio-economic dynamics are defined. | |
| Дата издания: | 2023 | |
| Дата загрузки: | 17.11.2023 | |
| Название: | A valid dynamical control on the reverse osmosis system using the cestac method |
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| Автор ПГУ: | Тында Александр Николаевич | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2021 | |
| Дата загрузки: | 22.10.2021 | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | Age Structure of Water Frogs of the Genus Pelophylax in the Middle Volga River Region (European Russia) |
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| Автор ПГУ: | Ермаков Олег Александрович | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Аннотация: | An analysis of the age structure of three water frog species (P. lessonae, P. ridibundus, P. esculentus) in the Middle Volga region of Russia was conducted. The skeletochronological method determined their maximum lifespans to be 7, 6, and 4 years, respectively. This study revealed specific characteristics of the age structure of Pelophylax frogs in relation to their taxonomic composition when cohabiting (population system type) and the degree of habitat transformation. Differences in body size and lifespan were observed among cryptic forms exhibiting mitochondrial DNA replacement and the presence of various types of heterozygous and homozygous alleles. Water frogs of the genus Pelophylax have a complex taxonomic structure, including hybrid species and morphologically cryptic forms, as well as massive mitochondrial DNA introgression. The aim of our paper was to analyze the age structure of three species of water frogs (P. lessonae, P. ridibundus, and P. esculentus) in the Middle Volga River region (European Russia). Based on the skeletochronological method, we determined their maximum lifespans of seven, six, and four years, respectively. The onset of sexual maturity in the marsh frogs occurred after two and four winterings in males and females (respectively), in the pond frog—one to two years, and in the edible frog—one to three years. This study revealed specific characteristics of the age structure of Pelophylax frogs in relation to their taxonomic composition when cohabiting (population system type) and the degree of habitat transformation. Differences in body size and lifespan were observed among cryptic forms exhibiting mitochondrial DNA replacement and the presence of various types of heterozygous and homozygous alleles. | |
| Дата издания: | 2025 | |
| Дата загрузки: | 02.10.2025 | |
| Название: | An Assessment Approach to Circular Business Models within an Industrial Ecosystem for Sustainable Territorial Development |
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| Автор ПГУ: | Татьяна Олеговна Гамидуллаева Лейла Айваровна | |
| Тематика: | экономика | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2022 | |
| Дата загрузки: | 31.10.2022 | |
| Название: | An assessment of regional sustainability via the maturity level of entrepreneurial ecosystems |
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| Автор ПГУ: | Васин Сергей Михайлович Гамидуллаева Лейла Айваровна | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2021 | |
| Дата загрузки: | 12.11.2021 | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | An assessment of regional sustainability via the maturity level of entrepreneurial ecosystems |
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| Автор ПГУ: | Гамидуллаева Лейла Айваровна Васин Сергей Михайлович | |
| Тематика: | экономика | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2021 | |
| Дата загрузки: | 08.11.2021 | |
| Название: | Biodiversity of Terrestrial Testate Amoebae in Western Siberia Lowland Peatlands |
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| Автор ПГУ: | Чернышов Виктор Александрович Есаулов Антон Сергеевич | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2023 | |
| Дата загрузки: | 02.12.2024 | |
| Название: | Boundary Integral Equations Approach for a Scattering Problem of a TE-Wave on a Graphene-Coated Slab |
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| Автор ПГУ: | Смирнов Юрий Геннадьевич Тихов Станислав Вячеславович | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Аннотация: | This paper focuses on a transmission problem describing the scattering of a TE-wave on a slab having an absolutely conducting wall at the bottom and covered with graphene at the top, accounting for the optical nonlinearity of graphene. This problem is reduced to a nonlinear hypersingular boundary integral equation defined on R. To find an approximate solution to this equation, we develop a novel mathematical approach that combines the collocation method using Chebyshev series to represent a solution (it allows to calculate hypersingular integrals analytically) with an iterative scheme (it allows to account for the nonlinearity of graphene). Using this approach, we numerically simulate the scattering of TE-wave at 3 THz by a ten-micron graphene-coated slab filled with silica. It is shown that by tuning the chemical potential of graphene, one can modulate both the phase and amplitude of the reflected wave. The presented simulation results also demonstrate the effect of the nonlinearity of graphene on the reflected wave. | |
| Дата издания: | 2025 | |
| Дата загрузки: | 12.09.2025 | |
| Название: | Cardiac Magnetic Resonance Imaging Based Ischemic Injury Pattern in Patients with Acute Myocardial Infarction Sensu Left Ventricular Global Systolic Function |
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| Автор ПГУ: | Александр Валентинович Салямова Людмила Ивановна Олейников Валентин Эливич Донецкая Наталия Александровна Чернова Ангелина Андреевна Авдеева Ирина Владимировна | |
| Тематика: | медицина | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2024 | |
| Дата загрузки: | 06.11.2024 | |
| Название: | Challenges and opportunities for technology transfer networks in the context of open innovation: Russian experience |
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| Автор ПГУ: | Гамидуллаева Лейла Айваровна Татьяна Олеговна | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2021 | |
| Дата загрузки: | 08.11.2021 | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | Comparative Analysis of Socioeconomic Models in COVID-19 Pandemic |
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| Автор ПГУ: | Васин Сергей Михайлович | |
| Тематика: | экономика | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научно-популярное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2022 | |
| Дата загрузки: | 10.11.2022 | |
| Название: | Cross-Sectoral Digital Platform as a Tool for Innovation Ecosystem Development |
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| Автор ПГУ: | Гамидуллаева Лейла Айваровна | |
| Тематика: | экономика | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Аннотация: | At present, issues of ecosystem self-organization and the mechanisms for their sustainable development have been insufficiently explored in academic literature. The key idea of our research is that for enterprises interacting in different industries based on a network partnership, a special tool is needed to ensure the openness of interaction between participants in the transfer of knowledge, technology, information, and resources. The authors argue that the development and practical implementation of a cross-sectoral digital ecosystem platform will allow for the synchronizing of the scientific and technological progress of several industries, making the most effective use of the synergistic effect from the interaction of ecosystem actors and ensuring the transparency and openness of the ongoing processes therein. The authors demonstrate their propositions with the example of unmanned aircraft system (UAS) industry. The proposed model and mechanism of cross-sectoral interaction can be replicated in different technological niches, such as robotics, neurotechnology, quantum technologies, etc. The conclusions arising from the conducted research provide scientists, government bodies, and decision-makers with the necessary information for a better understanding of practical mechanisms and tools that allow for the implementation of self-organization and sustainable development in modern innovation ecosystems. | |
| Дата издания: | 2021 | |
| Дата загрузки: | 12.11.2021 | |
| Название: | Detection of glacial refugia and post-glacial colonization routes of morphologically cryptic marsh frog species (Anura: Ranidae: Pelophylax) using environmental niche modeling |
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| Автор ПГУ: | Спартак Николаевич Ермаков Олег Александрович Иванов Александр Юрьевич | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Аннотация: | Studying the distribution of morphologically cryptic animal species is always a very difficult task. Because most marsh frog species (the Pelophylax ridibundus complex) are cryptic, we used molecular markers to identify them. Three marsh frog species (P. ridibundus, P. kurtmuelleri and P. cf. bedriagae) inhabit the northern part of Western Palearctic. We created a database of localities and built models of their modern distribution. These models showed that the most suitable habitats are on the north of the Mediterranean region for P. cf. bedriagae, temperate Europe for P. ridibundus, and the Balkan coastal areas for P. kurtmuelleri. The projection of the modern ecological niches under the late-Quaternary climatic conditions showed that the range of P. kurtmuelleri remained largely unchanged during the period, whereas the ranges of P. cf. bedriagae and especially P. ridibundus changed greatly over time. During the Last Glacial Maximum, the presumed range of P. cf. bedriagae covered a relatively large area in the north of the Mediterranean region and the south of European Russia. Glacial refugia of P. ridibundus were apparently located in the northern Balkans, the northern coast of the Black and Azov seas, and possibly in Western Europe. The northward long-distance post-glacial dispersal of P. ridibundus occurred from refugia in the northeastern Balkans and the Black-Azov seas region. Since the Late Pleistocene, suitable habitats for P. cf. bedriagae in southern Russia began to decline, but local habitats for P. ridibundus become more suitable. Therefore, a mosaic of populations consisting of these both species and their hybrids has now been found here. | |
| Дата издания: | 2024 | |
| Дата загрузки: | 13.10.2024 | |
| Название: | Diversity, Phylogenetic Relationships and Distribution of Marsh Frogs (the Pelophylax ridibundus complex) from Kazakhstan and Northwest China | 
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| Автор ПГУ: | Ермаков Олег Александрович | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| 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 | |
| Название: | Effect of Sodium Selenate and Selenocystine on Savoy Cabbage Yield, Morphological and Biochemical Characteristics under Chlorella Supply |
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| Автор ПГУ: | Полубояринов Павел Аркадьевич | |
| Тематика: | биология | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Журнал | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Преподаватель | |
| Дата издания: | 2023 | |
| Дата загрузки: | 14.11.2024 | |
| Название: | Effects of Plasma Treatment on the Surface and Photocatalytic Properties of Nanostructured SnO2–SiO2 Films |
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| Автор ПГУ: | Пронин Игорь Александрович Карманов Андрей Андреевич Якушова Надежда Дмитриевна | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2023 | |
| Дата загрузки: | 18.10.2023 | |
| Название: | Exploring Regional Industrial Growth: Does Specialization Explain It? |
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| Автор ПГУ: | Гамидуллаева Лейла Айваровна | |
| Тематика: | экономика | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Целевая аудитория: | Исследователь | |
| Дата издания: | 2022 | |
| Дата загрузки: | 31.10.2022 | |