scholarly journals Herpetological phylogeographic analyses support a Miocene focal point of Himalayan uplift and biological diversification

2020 ◽  
Author(s):  
Wei Xu ◽  
Wen-Jie Dong ◽  
Ting-Ting Fu ◽  
Wei Gao ◽  
Chen-Qi Lu ◽  
...  

Abstract The Himalaya are among the youngest and highest mountains in the world, but the exact timing of their uplift and origins of their biodiversity are still in debate. The Himalayan region is a relatively small area but with exceptional diversity and endemism. One common hypothesis to explain the rich montane diversity is uplift-driven diversification–that orogeny creates conditions favoring rapid in situ speciation of resident lineages. We test this hypothesis in the Himalayan region using amphibians and reptiles, two environmental sensitive vertebrate groups. In addition, analysis of diversification of the herpetofauna provides an independent source of information to test competing geological hypotheses of Himalayan orogenesis. We conclude that the origins of the Himalayan herpetofauna date to the early Paleocene, but that diversification of most groups was concentrated in the Miocene. There was an increase in both rates and modes of diversification during the early to middle Miocene, together with regional interchange (dispersal) between the Himalaya and adjacent regions. Our analyses support a recently proposed stepwise geological model of Himalayan uplift beginning in the Paleocene, with a subsequent rapid increase of uplifting during the Miocene, finally give rise to the intensification of the modern South Asia Monsoon.

Minerals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 536
Author(s):  
Di Zhang ◽  
Shun Guo ◽  
Yi Chen ◽  
Qiuli Li ◽  
Xiaoxiao Ling ◽  
...  

Ruby (red corundum) is one of the most prominent colored gemstones in the world. The highest-quality ruby (“pigeon blood” ruby) comes from marbles of the Mogok Stone Tract in central Myanmar. Although Mogok ruby has been exploited since the 6th century AD, the formation time of this gemstone is ambiguous and controversial. In this paper, we describe a mineralogical, geochemical, and geochronological study of ruby and titanite in ruby-bearing marbles obtained from an outcrop in the Mogok Stone Tract, central Myanmar. Petrographic observations have shown that titanite generally occurs in the marble matrix or occurs as inclusions in ruby. These two types of titanite exhibit identical chemical compositions. In situ secondary ion mass spectrometer (SIMS) U–Pb dating of the separated titanite from two representative samples of ruby-bearing marbles yielded lower intercept ages of 25.15 ± 0.24 Ma (MSWD = 0.26) and 25.06 ± 0.22 Ma (MSWD = 0.15), respectively. Because the closure temperature of the U–Pb system in titanite is close to the temperature of ruby growth, the obtained U–Pb ages (~25 Ma) are suggested to represent the timing of the studied ruby formation in Mogok. The acquired ages are in agreement with the timing of post-collisional extension in the Himalaya related to the migration of the eastern Himalayan syntaxis. Combining our dating results with previous geochronological data from the Mogok Stone Tract, we suggest that the formation of the studied ruby is most likely related to the high-temperature metamorphic event in the marbles during the India–Asia collision. Our study not only confirms that texturally constrained titanite could be a precise geochronometer to date the mineralization of different types of ruby, but also provides important geochronological information linking gemstone formation to the India–Asia collision.


2020 ◽  
Vol 12 (3) ◽  
pp. 1132 ◽  
Author(s):  
Giulia Caneva ◽  
Maria Rosaria Fidanza ◽  
Chiara Tonon ◽  
Sergio Enrico Favero-Longo

The colonisation of stone by different organisms often leaves biodeterioration patterns (BPs) on the surfaces even if their presence is no longer detectable. Peculiar weathering patterns on monuments and rocks, such as pitting phenomena, were recognised as a source of information on past colonisers and environmental conditions. The evident inhibition areas for new bio-patinas observed on the marble blocks of the Caestia Pyramid in Rome, recognisable as tracks of previous colonisations, seem a source for developing new natural products suitable for restoration activities. To hypothesise past occurring communities and species, which gave rise to such BPs, we carried out both in situ observations and analyses of the rich historical available iconography (mainly photographs). Moreover, we analysed literature on the lichen species colonising carbonate stones used in Roman sites. Considering morphology, biochemical properties and historical data on 90 lichen species already reported in Latium archaeological sites, we suppose lichen species belonging to the genus Circinaria (Aspicilia s.l.) to be the main aetiological agent of such peculiar BPs. These results seem relevant to highlight the long-lasting allelopathic properties of some lichen substances potentially applicable as a natural product to control colonisation, improving the environmental and economical sustainability of stone restoration.


2021 ◽  
Vol 14 (7) ◽  
pp. 60-67
Author(s):  
Prakash Biswakarma ◽  
Kush Kumar ◽  
Varun Joshi ◽  
Deepesh Goyal

The Himalaya, the youngest and the tallest folded mountain range of the world, is frequently affected by natural disasters.18 In the form of flash floods, cloudbursts or glacial lake outburst floods, the entire Himalayan region is highly vulnerable to natural hazards. In this context, the State of Uttarakhand of the Indian Himalayan Region has been the most vulnerable one among all the natural disaster-affected states in India.


Rusin ◽  
2021 ◽  
pp. 240-254
Author(s):  
M. Čižmarova ◽  

The article draws attention to the current state of study of Rusin phraseology and paremiology in Slovakia and analyzes the most important works from the 1950s to this day. These works are the most valuable source of information about the residents of the region, the world around them, their culture, world outlook, customs, stereotypes and historical past. The following books are presented: E. Nedzelsky’s The Nation’s Word of Mouth. Proverbs – Sayings – Incantations – Riddles – Sayings of Transcarpathia, Y. Tsyhra and I. Lehdan’s People Will Say How to Tie It, M. Mushynka’s From the Depths of Ages. Anthology of Oral Folk Art of Presov Region, N. Warhol and A. Ivchenko’s Phraseological Dictionary of Lemko Dialects of Eastern Slovakia, M. Schmaida’s “... And I am also wishing you...”, J. Warhol’s Calendar and Family Ritual of Ukrainians of Slovakia, and A. Galgashov’s Struzhnitsky Walkways. The rich factual phraseological material of the Slovakian Rusins has been accumulated by scholars for decades, and a significant part of it remains in the manuscripts of the Museum of Ukrainian Culture in Svidník. Numerous dialect phrases were published in the pages of local periodicals – Nove Zhytja, Dukla and the magazine Druzhno Vpered. The author investigates paremias with animalistic and phytonymic components, as well as paremias with components – names of food and food products.


2018 ◽  
Vol 16 (2) ◽  
pp. 76
Author(s):  
Antonio Carlos Frizzo

A atividade profética não terminou com o exílio babilônico, em 587 a.C. Cremos que ela continuou por meio de novas vozes, pessoas, grupos. Adquiriu novos contornos em novos ambientes. Eis a temática central deste artigo ao apresentar uma reflexão sobre o capítulo 13 do livro de Sirácida ou Eclesiástico, na ótica do comportamento entre o pobre e o rico. Em nossa hermenêutica, apostamos que temos nessas páginas bíblicas uma profecia. Uma profecia de cunho sapiencial que se espalhou em outras narrativas, na época pós-exílica (Sb, Sl, Jó, Ct e Pr). Ela adquire novos contornos entre acrósticos, poemas, provérbios e sentenças. Buscamos contextualizar a época do surgimento do livro de Sirácida, para em seguida, analisar métricas, antíteses e propostas sociais da narrativa. Diante do risco em que o mundo, o planeta se encontra, recompor o tecido social só terá validade se consideramos os grupos desfavorecidos. THE ASTUCTION OF THE POOR IN CONFLICT WITH THE RICH: THE TEACHING OF SIRACID 13 The prophetical activity did not end with the babilonical exile, in 587 b.C. We believe that it continued through new voices, people, groups. It acquired new outlines in new environments. That is the focal point of this article in presenting a reflection on the chapter 13 of the book of Sirach or Book of Ecclesiasticus, from the optics of the behaviour dynamics between the poor and the rich. In our hermeneutics we consider that we have, in these biblical pages, a prophecy. A prophecy of wise nature that was spread in other narratives, in the post-exile era (Ws, Psalm, Job, Song, and Prov). It acquires new outlines among acrostics, poems, proverbs and sentences. First, we aim to contextualize the time of the appearance of the book of Sirach, and then, to analyze metrics, antitheses and social propositions of the narrative. Considering the peril that the world finds itself in, it will only be valid to recompose the social tissue if we consider the disadvantaged groups.


1964 ◽  
Vol 11 (1) ◽  
pp. 48-63 ◽  
Author(s):  
R. D. Williams

The sixth book is the focal point of the Aeneid; it completes and concludes what has gone before, and it provides a new impetus for the second half of the poem. It is not an isolated piece of theology; it has its work to do within the design of the poem. It is of vital importance in the development of the main themes of the Aeneid, and it is on three of these that I want to concentrate as we accompany Aeneas on his journey from the cave at Avernus to the Gates of Ivory. We shall be concerned firstly with how a memorable picture—or perhaps two memorable pictures—of the world after death is built up from the rich and tangled heritage of poetry, folk-lore, philosophy, and religion. In the words of T. R. Glover—to whose warm and sensitive appreciation of the poet Virgilian studies are deeply indebted—‘we find here as elsewhere that Virgil tries to sum up all that is of value in the traditions, the philosophies, and the fancies of the past’. It is in the later part of Book vi that Virgil comes nearest to a solution of the problem of human suffering with which the whole poem is so preoccupied, as he gropes towards a conception of the life after death in which sin is purified away and virtue rewarded. Secondly, the golden hopes for the future of Rome and the Roman world are in this book expressed with a patriotic pride more complete than anywhere else; the vision of the temporal destiny of the world follows upon the vision of the spiritual after-life. Thirdly, and this is the aspect which I shall stress most because it is not generally stressed enough, this book (like the rest of the Aeneid) is above all about Aeneas himself, his character and resolution, his experiences, past, present, and future. We must always remember that the aim of the book is not primarily philosophical or theological—and in this it differs from the myths of Plato to which it owes so much; the aim is to present a poetic vision which has special reference to Aeneas and Rome within the design and framework of the total epic poem.


2020 ◽  
Vol 2 (4) ◽  
pp. 32-54
Author(s):  
Silvia Spitta

Sandra Ramos (b. 1969) is one of the few artists to reflect critically on both sides of the Cuban di-lemma, fully embodying the etymological origins of the word in ancient Greek: di-, meaning twice, and lemma, denoting a form of argument involving a choice between equally unfavorable alternatives. Throughout her works she shines a light on the dilemmas faced by Cubans whether in Cuba or the United States, underlining the bad personal and political choices people face in both countries. During the hard 1990s, while still in Havana, the artist focused on the traumatic one-way journey into exile by thousands, as well as the experience of profound abandonment experienced by those who were left behind on the island. Today she lives in Miami and operates a studio there as well as one in Havana. Her initial disorientation in the USA has morphed into an acerbic representation and critique of the current administration and a deep concern with the environmental collapse we face. A buffoonlike Trumpito has joined el Bobo de Abela and Liborio in her gallery of comic characters derived from the rich Cuban graphic arts tradition where she was formed. While Cuba is now represented as a rotten cake with menacing flies hovering over it ready to pounce, a bombastic Trumpito marches across the world stage, trampling everything underfoot, a dollar sign for a face.


2018 ◽  
Vol 16 (1) ◽  
pp. 112-119
Author(s):  
VLADIMIR GLEB NAYDONOV

The article considers the students’ tolerance as a spectrum of personal manifestations of respect, acceptance and correct understanding of the rich diversity of cultures of the world, values of others’ personality. The purpose of the study is to investgate education and the formation of tolerance among the students. We have compiled a training program to improve the level of tolerance for interethnic differences. Based on the statistical analysis of the data obtained, the most important values that are significant for different levels of tolerance were identified.


2014 ◽  
Vol 31 (2) ◽  
pp. 75-100
Author(s):  
Bakare Adewale Muteeu

In pursuit of a capitalist world configuration, the causal phenomenon of globalization spread its cultural values in the built international system, as evidenced by the dichotomy between the rich North and the poor South. This era of cultural globalization is predominantly characterized by social inequality, economic inequality and instability, political instability, social injustice, and environmental change. Consequently, the world is empirically infected by divergent global inequalities among nations and people, as evidenced by the numerous problems plaguing humanity. This article seeks to understand Islam from the viewpoint of technological determinism in attempt to offset these diverging global inequalities for its “sociopolitical economy”1existence, as well as the stabilization of the interconnected world. Based upon the unifying view of microIslamics, the meaning of Islam and its globalizing perspectives are deciphered on a built micro-religious platform. Finally, the world is rebuilt via the Open World Peace (OWP) paradigm, from which the fluidity of open globalization is derived as a future causal phenomenon for seamlessly bridging (or contracting) the gaps between the rich-rich, rich-poor, poor-rich and poor-poor nations and people based on common civilization fronts.


Author(s):  
Joanna Rzepa

This chapter offers a historical account of the presence of Paradise Lost in translation and Polish literature, especially how the poem’s reception in Poland has been shaped by complex modes of linguistic and cultural transfer. The chapter explores the historical and political contexts in which Paradise Lost was translated into Polish, discusses the most important actors involved in its publication, and analyses the strategies employed by the translators. It demonstrates that the eighteenth- and nineteenth-century translators of Milton, who worked at a time when Poland had lost its political sovereignty, focused specifically on the form of the poem, presenting models for a modern Polish epic poem that could help sustain Polish cultural identity. The focus of the twentieth-century translators, who lived through the world wars, shifted from the form to the rich imagery of Milton’s poem, in particular his exploration of the themes of vanity, destruction, and exile.


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