The isotope record (δ13C, δ18O) of vertical mobility in incremental tissues (tooth enamel, hair) of modern livestock: A reference set from the Mongolian Altai

Author(s):  
N. Lazzerini ◽  
A. Coulon ◽  
L. Simon ◽  
C. Marchina ◽  
D. Fiorillo ◽  
...  
Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2582
Author(s):  
Jane Skippington ◽  
Tiina Manne ◽  
Peter Veth

This paper presents the first application of mammal tooth enamel carbonate stable isotope analysis for the purpose of investigating late Pleistocene–early Holocene environmental change in an Australian archaeological context. Stable carbon (δ13C) and oxygen (δ18O) isotope ratios were analyzed from archaeological and modern spectacled hare wallaby (Lagorchestes conspicillatus) and hill kangaroo (Osphranter robustus) tooth enamel carbonates from Boodie Cave on Barrow Island in Western Australia. δ18O results track the dynamic paleoecological history at Boodie Cave including a clear shift towards increasing aridity preceding the onset of the Last Glacial Maximum and a period of increased humidity in the early to mid-Holocene. Enamel δ13C reflects divergent species feeding ecology and may imply a long-term shift toward increasing diversity in vegetation structure. This study contributes new data to the carbonate-isotope record for Australian fauna and demonstrates the significant potential of stable isotope based ecological investigations for tracking paleoenvironment change to inter-strata resolution.


2015 ◽  
Vol 133 ◽  
pp. 288-297 ◽  
Author(s):  
Laura Arppe ◽  
Anu Kaakinen ◽  
Benjamin H. Passey ◽  
Zhaoqun Zhang ◽  
Mikael Fortelius

2014 ◽  
pp. 144-160
Author(s):  
E. Avraamova ◽  
T. Maleva

This paper presents an attempt at answering the question of why the scope of socio-economic inequality stays the same in Russia despite the poverty rate reduction. The authors are looking for the causes of this phenomenon in the domain of social dynamics, i.e., in the nature of current vertical mobility mechanisms. To study these mechanisms the authors use resources approach. The information database of the research is the representative sample survey carried by the Institute for Social Analysis and Forecasting at RANEPA in 2013. The majority of the respondents have, in fact, vague idea of general parameters of the economic development of the country and of their personal prospects to adapt to possible changes. This state of things hinders the development of rational models of socio-economic behavior directed towards the growth of personal and family welfare and productive in terms of national economy development - these, eventually, would advance the reduction of socio-economic inequality. Various groups of population are predominantly oriented towards converting social capital viewed not in terms of trust and solidarity, but in terms of ties or connections and of personal loyalty.


Author(s):  
Ш.М. Абрамян ◽  
Е.В. Рожнова ◽  
Е.Н. Волкова ◽  
С.Н. Блохин ◽  
С.Г. Морозов

Цель. Изучение клеток иммунной системы полости рта у пациентов до проведения операции лифтинга лица, а также сопоставление этих данных с показателями, выявленными при осложнениях в послеоперационном периоде. Методика. Исследованы клетки иммунной системы полости рта 100 женщин (23-68 лет), которым перед операцией лифтинга лица проведено стоматологическое обследование и необходимое лечение при наличии кариеса дентина, клиновидного дефекта эмали зуба, хронического периодонтита или пульпита. Выделенные путем смывов десенной борозды клетки окрашивали моноклональными антителами и анализировали на проточном цитометре. Определяли уровень спонтанного и индуцированного апоптоза. Оценивали уровень фагоцитоза и генерацию супероксидного аниона нейтрофилами. Результаты. Показано, что хронические воспалительные заболевания зубов оказывают негативное влияние на состояние иммунных клеток ротовой полости, сопровождаются повышением генерации супероксидного аниона нейтрофилами, повышением уровня спонтанного и церамид-индуцированного апоптоза клеток десенной борозды. Заключение. Наличие хронической патологии зубов, даже после санации, оказывает негативное влияние на течение послеоперационного периода при проведении операции лифтинга лица, в частности, способствует увеличению времени заживления операционной раны, инфицированию раны с появлением очагов некроза в области операционного шва. The object. The study of the cells of the immune system of the oral cavity in patients before the operation of face lifting, as well as a comparison of these indicators with complications in the postoperative period. Methods. The immune cells from the oral cavity were studied in 100 women (23-68 years), who underwent a dental examination and necessary treatment if they had the dentin caries, wedge-shaped defect of tooth enamel, chronic periodontitis or pulpitis before the facial lifting operation. The immune cells have been isolated by a lavage of gingival sulcus around the damaged tooth. Results. It has been shown that chronic dental diseases made a negative contribution to the oral cavity immune cells. It has been accompanied by the elevated levels of superoxide originating from neutrophils as well as the increased levels of spontaneous and ceramide-induced apoptosis of immune cells isolated from the gingival sulcus. Conclusion. The presence of chronic pathology of teeth even in the case of the preoperative dental sanation has a negative impact on the postoperative period after face lifting, in particular, contributes to the lengthening of the surgical wound healing time, wound infection as well as the partial necrosis of suture.


Author(s):  
S. V. Ovczinnikova

A new species Craniospermum volkovae Ovczinnikova (Boraginaceae) from relationship of C. pseudotuvinicum Ovczinnikova et A. Korolyuk, is described from the Central Mongolian-Altai province of Mongolia. Morphological and ecologo-cenotic peculiarities of the new species are discussed, and the necessity of its treatment within a separate section Pseudotuvinica Ovczinnikova is substantiated.


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