Data on Common Pochard (hereafter Pochard) migration was taken from the Database of the Bird Ringing Centre of Russia. Data on weather conditions in the day of recovery and dates of the transitions ...through 0, 5 and 10°C were obtained from the climate site
http://pogoda-service.ru/archive_gsod.php
. After all filtering, we used 575 Pochard recoveries that are valid for the treating weather-dependence of Pochards on the spring arrival. In addition to the common known ways of analysis, we use so called “ecological fingerprints” (Kharitonov et al., 2022). For the entire breeding range, the average date of arrival of the Pochard is 4 May (Julian date is 124.87 ± 0.61 days
N
= 575), most recoveries are concentrated around this average date. In the westernmost parts of the considered breeding range in spring, Pochards perform break-through migration, when birds in some areas in eastern parts of the breeding range appeared later than in western ones. Secondly coming birds fly not so fast, their style of migration can be called as steady migration. Three parameters are important for arrival time: latitude of recovery, Julian date of recovery, and mean daily temperature. The Julian date of arrival is more important for Pochards than mean daily temperature. In the southern areas of the western part of the breeding range, Pochards are not much limited by climatic conditions. Pochards are guided not only by the approach of spring events, but also by some specific day of the year, represented by the Julian date. In the northern areas of the western parts and in the entire eastern part of the breeding range, a compromise is seen between the Julian date of the season (Pochards tend to arrive earlier) and mean daily temperature (they have to arrive later).
—Observations were conducted from the R/V
Akademik Mstislav Keldysh
in the Drake Passage, the vicinities of the Antarctic Peninsula, the Scotia Sea, and the northern Weddell Sea during two cruises in ...January–early March 2020 (cruise 79) and during a single cruise in January–February 2022 (cruise 87). The data make it possible to assess the number of the most abundant sea mammals in the area near the South Shetland Islands, Scotia Sea, and Powell Basin. The 2022 observation area in the Antarctic was located about 150 km east of the 2020 area. The survey area, which was a bit larger than 343 000 km
2
in January–February 2020, hosted approximately 1200 humpback whales (
Megaptera novaeangliae
) and 2800 fin whales (
Balaenoptera physalus
). In 2022, this area hosted approximately 2500 fin whales and again more than 1200 humpback whales. The numbers of the Antarctic fur seals in each season here were assessed at approximately 2000–3000 animals. The type of distribution of these two whale species along the track of the vessel indicated the absence of intra- or interspecies food competition during the austral summers of 2020 and 2022. It was possible to evaluate the total numbers of Antarctic fur seal (
Arctocephalus gazella
); however, this assessment appeared less precise than the same ones for humpback and fin whales.
For young greater spotted eagles (
Clanga clanga
) tagged in the center of European Russia (four individuals) and in the Republic of Tatarstan (one individual), fall (2019) and spring (2020) ...migration routes and summer vagrancy routes, as well as stops during migration and vagrancy, were traced using GPS–GSM trackers. In contrast to birds from more western populations, e.g. Polish, Baltic, or Belarusian, some of which winter in Southern Europe, all the five spotted eagles studied were found to have migrated to wintering grounds in the Middle East. For the first time, the greater spotted eagle of the Volga population was recorded to have wintered near the southwestern coast of the Caspian Sea, and its migration route was found to be noticeably shorter than the routes of the other four individuals. The migration routes of two birds were revealed to have been circular: the fall route was along the eastern coast of the Black Sea, whereas the spring route, through the Bosporus and Dardanelles straits and then to the west of the Black Sea coast. Long stops during the fall migration were shown to be mainly determined by the presence of places with abundant potential prey along the migration track, which not all birds could find. Two individuals had long stops during the spring migration before crossing the Bosporus and Dardanelles straits, probably because of the absence of imprinting of migration route in young spotted eagles. The long stopover sites of the two birds during their summer vagrancies were located in the areas of extensive agriculture, this probably being due to readily available prey during harvesting.
As a result of long-term studies in the areas of abandoned meadows and grasslands in Arkhangelsk, Novgorod, Ivanovo, and Moscow regions, we found the main peculiarities of bird population trends in ...the process of demutational succession: from scattered weed associations to domination of scrub and woods. The main changes in bird communities and numbers of passerines, waders and Corncrake
Crex crex
, and their likely reasons for various stages of plant succession are discussed. It is established that the most negative trends in ground-nesting bird species for which short-grass habitats are optimum are supported owing to cattle grazing and haymaking: northern lapwing (
Vanellus vanellus
), black-tailed godwit (
Limosa limosa
), redshank (
Tringa totanus
), skylark (
Alauda arvensis
), and yellow wagtail (
Motacilla flava
). The variously directed population trends of two
Motacillidae
species are shown: an increase in numbers and range expansion of the citrine wagtail (
Motacilla citreola
), which prefers abandoned swampy meadows, and a decrease in numbers of the meadow pipit (
Anthus pratensis
), which prefers low vegetation in used grasslands. The factors delaying demutational succession and hampering the decline in numbers of some passerines and waders are revealed. The reasons for the likely continuation of reduction of hay meadows and pasture areas in the forest zone, which aggravate negative trends of the meadow bird numbers, are discussed.
Using GPS–GSM trackers, data were obtained on the winter locations of four young Greater Spotted Eagles (
Clanga clanga
) in the center of the European part of Russia. The birds migrated to wintering ...areas located in the Middle East (Israel, northern Egypt, and Saudi Arabia), in southeastern Africa (Sudan and South Sudan), and also in southern Russia (the Republic of Adygea and Krasnodar Territory). The dates of arrival at the wintering grounds differed significantly and on average were October 27 (±22 days), while departure occurred almost simultaneously, March 24 (±3 days) on average. It has been established that, unlike the birds of western populations (Polish, Baltic and Belarusian), our Spotted Eagles flew from their wintering grounds later. According to the results of the research, an uneven distribution of Greater Spotted Eagles in the wintering areas was revealed. Most of the time, the birds kept to favorite places confined to both natural and anthropogenic wet habitats. During the entire wintering period, Greater Spotted Eagles used from 2 to 4 key areas, between which they periodically moved, only occasionally flying out of them.
Display omitted
Nanoemulsions (NE) and solid lipid nanoparticles (SLN) used for drug delivery should have a solid shell to be stable during long shelf life and become liquid at human body ...temperature. The core components of lipid nanoparticles can be partially incorporated into the shell and affect the physical and thermal stability.
We prepared NE and SLN by the phase inversion temperature (PIT) method. Solidification of the surfactants Tween60 and Span 60 on the surface of NE droplets with paraffin oil resulted in the formation of the solid shell. SLN contained stearic acid in the core and the same surfactants in the solid shell. The size, structure and stability of the NE and SLN were studied by DLS and cryo-TEM. Their crystallization and melting were analyzed using DSC.
The lipid nanoparticles were resistant to aggregation and sedimentation and hold up to at least two cycles of heating to 50–60 °C and subsequent cooling to 5 °C, even though the upper temperatures were higher than the melting point of the surfactant shell. The expected liquid core/solid shell morphology of NE was confirmed. SLN were composed of a semi-liquid core of supercooled stearic acid melt and coated with a solid surfactant shell, so they can be treated as NE. Stearic acid molecules penetrated the shell, leading to an increase in its melting point.
Objective
This study aimed to conceptualize teacher embodiment of mindfulness while teaching a mindfulness-based program at the elementary school level. It was predicated on the growing interest in ...such programs alongside the lack of easy-to-use standards and frameworks on mindfulness teacher competence in this setting.
Method
Building upon the Teacher Mindfulness in the Classroom framework, this paper presents a theory-building exploratory case study based on interviews of 11 elementary school teachers delivering
Flourish
: the Compassionate Schools Project curriculum.
Results
A conceptual framework, Mindfully Teaching Mindfulness—Elementary (MTM-E) is proposed and applied to two comparable classroom observations for illustration purposes.
Conclusions
This framework may be helpful for designing effective professional learning opportunities, promoting personal and professional practices among instructors, and informing the development of observational tools for assessing how well teachers embody mindfulness while teaching mindfulness in elementary school settings.
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