Modern microwave methods in solid state inorganic materials chemistry: from fundamentals to manufacturing

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СОБЫТИЙНАЯ СТРАТИГРАФИЯ И ПРОБЛЕМЫ КОРРЕЛЯЦИИ ОРДОВИКСКИХ СТРАТОНОВ ГОРНОГО АЛТАЯ И САЛАИРА

Study of the Ordovician sedimentary sequences of Gorny Altai and Salair has revealed lithological and paleontological features correlating with global sedimentary events:(1) The Acerocare Regressive Event (an initial event in the Early Tremadocian);(2) Black Mountain Transgressive Event (Early Tremadocian);(3) Peltocare Regressive Event (Tremadocian);(4) Kelly Creek Regressive Event (Late Tremadocian);(5) Ceratopyge Regressive Event (Late Tremadocian);(6) Billingen Transgressive Event (Early Floian);(7) Stein Lowstand Event (Middle Darriwilian);(8) Vollen Lowstand Event (Sandbian);(9) Arestad Drowning Event (Middle Sandbian);(10) Frognerkilen Lowstand Event (Early Katian);(11) Linearis Drowning Events 1 and 2 (Middle Katian);(12) Terminal Husbergoya Lowstand Event (Hirnantian); and(13) Hirnantian Lowstand Event (HICE) (Late Ordovician).The chronostratigraphic levels with traces of the global sedimentary events in the Uymen-Lebed structural-facies zone (SFZ) (Gorny Altai) differ from those in the Charysh-Inya and Anui-Chuya SFZ (Altai). In the Ordovician, the Altai basin located in the Charysh-Inya and Anui-Chuya SFZ was a marine area separated from both the Uymen-Lebed basin and the coeval Salair basin. The traces of the global sedimentary and/or biotic events in the Altai and Salair sections can be used as a precise basis for direct correlation of the local stratigraphic units with the units of the International Stratigraphic Chart.В ордовикских осадочных последовательностях Горного Алтая и Салаира выделены литологические и палеонтологические особенности, которые коррелируются с глобальными седиментационными событиями:1) инициальным раннетремадокским регрессивным Ацерокаре (Acerocare),2) раннетремадокским трансгрессивным Блэк Маунтин (Black Mountain),3) тремадокским регрессивным Пельтокаре (Peltocare),4) позднетремадокским регрессивным Келли Крик (Kelly Creek),5) позднетремадокским регрессивным Цератопиге (Ceratopyge),6) раннефлоским трансгрессивным Биллинген (Billingen),7) среднедарривильским регрессивным Стейн (Stein),8) раннесандбийским регрессивным Воллен (Vollen Lowstand),9) среднесанбийским трансгрессивным Аристад (Arestad),10) раннекатийским регрессивным Фрогнеркилен (Frognerkilen),11) среднекатийским регрессивным Линеарис (Linearis),12) хирнантским регрессивным – Терминальный Хусбергойя (Terminal Husbergoya),13) позднеордовикским регрессивным Хирнант (Hirnantian Lowstand) (HICE).Хроностратиграфические уровни проявления следов глобальных седиментационных событий в Уйменско-Лебедской структурно-фациальной зоне (СФЗ) Горного Алтая отличаются от уровней проявления следов глобальных седиментационных событий в Чарышско-Инской и Ануйско-Чуйской СФЗ Алтая. Алтайский ордовикский бассейн, располагавшийся в Чарышско-Инской и Ануйско-Чуйской СФЗ, был морской акваторией, обособленной как от Уйменско-Лебедского, так и от Салаирского одновозрастного бассейна. Зафиксированные в алтайских и салаирских разрезах следы глобальных седиментационных и (или) биотических событий могут служить прецизионной основой для прямой корреляции местных стратиграфических подразделений с ярусными подразделениями Международной стратиграфической шкалы

Radiological and functional outcomes of ultrasound-guided PRP injections in intrasubstance meniscal degenerations

PubMed: 31204581Aim: This retrospective study is aimed to analyze the effect of ultrasound-guided platelet-rich plasma (PRP) injections on grade 2 intrasubstance meniscal degenerations (IMDs). Materials and Methods: Fifteen patients who underwent PRP injections for symptomatic grade 2 meniscal lesions were included in the study. All injections were performed with ultrasound in the degenerated menisci. Patients were evaluated with Lysholm score and magnetic resonance imaging (MRI) before the injection and after a mean of 32-month follow-up. T2-weighted MRI images were evaluated on sagittal by two authors as double-blind. Results: Lysholm score was found to be statistically significantly increased, and in 67% of the patients, grade 2 degenerations were improved to grade 1. Conclusion: Intra-meniscal PRP injection under ultrasonography guidance provides good functional scores and radiological improvement in the patients with IMD. © the Author(s) 2019

EVENT STRATIGRAPHY AND CORRELATION PROBLEMS OF THE ORDOVICIAN STRATA OF GORNY ALTAI AND SALAIR

Study of the Ordovician sedimentary sequences of Gorny Altai and Salair has revealed lithological and paleontological features correlating with global sedimentary events:(1) The Acerocare Regressive Event (an initial event in the Early Tremadocian);(2) Black Mountain Transgressive Event (Early Tremadocian);(3) Peltocare Regressive Event (Tremadocian);(4) Kelly Creek Regressive Event (Late Tremadocian);(5) Ceratopyge Regressive Event (Late Tremadocian);(6) Billingen Transgressive Event (Early Floian);(7) Stein Lowstand Event (Middle Darriwilian);(8) Vollen Lowstand Event (Sandbian);(9) Arestad Drowning Event (Middle Sandbian);(10) Frognerkilen Lowstand Event (Early Katian);(11) Linearis Drowning Events 1 and 2 (Middle Katian);(12) Terminal Husbergoya Lowstand Event (Hirnantian); and(13) Hirnantian Lowstand Event (HICE) (Late Ordovician).The chronostratigraphic levels with traces of the global sedimentary events in the Uymen-Lebed structural-facies zone (SFZ) (Gorny Altai) differ from those in the Charysh-Inya and Anui-Chuya SFZ (Altai). In the Ordovician, the Altai basin located in the Charysh-Inya and Anui-Chuya SFZ was a marine area separated from both the Uymen-Lebed basin and the coeval Salair basin. The traces of the global sedimentary and/or biotic events in the Altai and Salair sections can be used as a precise basis for direct correlation of the local stratigraphic units with the units of the International Stratigraphic Chart

The Lower Cambrian of the Salair and Gorny Altai (Siberia) revisited

This paper discusses the fossil record, stratigraphy and sedimentary environments of lower Cambrian sequences that crop out in the Salair and Gorny Altai, southern part of western Siberia (Russia). Numerous and well-preserved archaeocyaths and a few small shelly fossils (SSF) have been discovered in carbonate sequences that crop out nearby the Gavrilovka village, Salair. The presence of the Gordonicyathus howelliarchaeocyath Zone is established for the first time in this thick sequence of biogenic carbonates, in addition to the Nochoroicyathus mariinskii Zone, which was known previously from the Gavrilovka Formation. Both of these zones are Atdabanian in age. It is likely that accumulation of the Gavrilovka Formation took place in relatively shallow waters, along reef buildups surrounded by lagoons with archaeocyaths. In the Ak-Kaya section of the Gorny Altai, the trilobite species Alacephalus contortus and Poliellaspis rotundata, known previously from the upper Atdabanian, were discovered, only a few meters above horizons bearing lower Botoman trilobites. We may consider that the previously known age range of these two species is slightly longer and should be extended up to the lower Botoman. Alternatively, on the basis of their paleoecological affinity for agitated waters, these trilobites may be interpreted as reworked in lower Botoman strata