scholarly journals Plant diversity of Absheron peninsula

2021 ◽  
pp. 35-40
Author(s):  
Alexander S. Zernov ◽  
Shahla N. Mirzayeva

Abstract: In this article, we discuss the results of studying the flora of the Absheron Peninsula. The dynamics of the species composition over the past 70 years is considered. We were unable to find 206 species in the habitats previously recorded by Karyagin in 1952. We included 678 species in the list of flora of the Absheron Peninsula, of which 599 species were classified as native flora. In accordance with the direction of the dynamics of their habitats, we distinguish five groups of native flora species: Extinct (not found on the territory of Absheron for more than 50 years) – seven species, endangered (disappeared in several previously known localities) - 130 species, stable (found in previously known localities) – 209 species, dynamic (disappeared in previously known localities, but found in new localities) - 191 species, progressive (found in previously known localities and found in new localities) - 47 species. It is well known that for any region the adventive element of the flora is more dynamic than the native one. In total, we recorded 97 adventive species for the Absheron peninsula, of which 23 were new species for the flora of the region. We draw attention to the fact that since the beginning of the XIX century, the relative role of various sources of replenishment of the adventitious flora has changed. However, with the beginning of the new millennium, the contribution of railways to the formation of the advent component is noticeably decreasing.The number of new species entering the territory of the Absheron Peninsula by rail is radically decreasing. During the period covering 9 years (from 2012 to 2020), we were not able to find a single new adventive species that was intrude by rail. On the other hands, the activity of cultivated ornamental trees, shrubs and herbaceous plants became more clearly visible. There is a significant increase in the role landfills and wastelands in the formation of the adventive flora of the region

Author(s):  
Magdalena Zarzyka-Ryszka

The paper describes the past and present distribution of Colchicum autumnale in the vicinity of Cracow, highlights the role of Stanisław Dembosz (who published the first locality of C. autumnale near Igołomia in 1841). Gives information about the occurrence of C. autumnale in Krzeszowice in the 19th century (reported by Bronisław Gustawicz), presents new localities noted in 2012–2014 in meadows in the north-eastern part of the Puszcza Niepołomicka forest and adjacent area (between the Vistula and Raba rivers), and gives a locality found in Cracow in 2005 (no longer extant).


Biologija ◽  
2018 ◽  
Vol 64 (3) ◽  
Author(s):  
Algimantas Paulauskas ◽  
Irma Ražanskė ◽  
Jana Radzijevskaja ◽  
Dovilė Nugaraitė ◽  
Vaclovas Gedminas

In the Baltic countries, the golden jackal (Canis aureus) was first recorded in Estonia on 28 February 2013 and three specimens of golden jackal were hunted in Latvia in 2014. The first golden jackal in Lithuania was hunted on 7 February 2015. The species of the golden jackal was identified using morphological and mitochondrial DNA control region (CR1) analysis. In Lithuania, hunting of these animals is permitted throughout the year. Few studies in the past revealed the potential role of the golden jackal as a carrier of intestinal helminths, parasites, and zoonotic diseases. In this study, the presence of tick-borne pathogens and other parasites in golden jackal specimen were investigated. No pathogens (Anaplasma phagocytophilum, Babesia sp., Bartonella sp.) were found in the spleen of the golden jackal. However, the flukes Apophallus donicus, nematodes Uncinaria stenocephala, and unidentified individuals of class Cestoda were detected. Helminths A. donicus and U. stenocephala are not new species for Lithuania and neighbouring territories.


2014 ◽  
Vol 5 (2) ◽  
pp. 375-382 ◽  
Author(s):  
G. R. van der Werf ◽  
A. J. Dolman

Abstract. The instrumental surface air temperature record has been used in several statistical studies to assess the relative role of natural and anthropogenic drivers of climate change. The results of those studies varied considerably, with anthropogenic temperature trends over the past 25–30 years suggested to range from 0.07 to 0.20 °C decade−1. In this short communication, we assess the origin of these differences and highlight the inverse relation between the temperature trend of the past 30 years and the weight given to the Atlantic Multidecadal Oscillation (AMO) as an explanatory factor in the multiple linear regression (MLR) tool that is usually employed. We highlight that robust MLR outcomes require a better understanding of the AMO in general and, more specifically, of its characterization. Our results indicate that both the high and the low end of the anthropogenic trend over the past 30 years found in previous studies are unlikely and that a transient climate response of 1.6 (1.0–3.3) °C best captures the historic instrumental temperature record.


2014 ◽  
Vol 5 (1) ◽  
pp. 529-544
Author(s):  
G. R. van der Werf ◽  
A. J. Dolman

Abstract. The instrumental surface air temperature record has been used in several statistical studies to assess the relative role of natural and anthropogenic drivers of climate change. The results of those studies varied considerably, with anthropogenic temperature trends over the past 25–30 years suggested to range from 0.07 to 0.20 °C decade−1. In this short communication we assess the origin of these differences and highlight the inverse relation between the derived anthropogenic temperature trend of the past 30 years and the weight given to the Atlantic Multidecadal Oscillation (AMO) as an explanatory factor in the multiple linear regression (MLR) tool that is usually employed. We highlight that robust MLR outcomes require a better understanding of the AMO in general and more specifically its characterization. Our results indicate that both the high- and low end of the anthropogenic trend over the past 30 years found in previous studies are unlikely and that a transient climate response with best estimates centred around 1.3 °C per CO2 doubling best captures the historic instrumental temperature record.


Author(s):  
Charles Darwin

‘Can we doubt … that individuals having any advantage, however slight, over others, would have the best chance of surviving and of procreating their kind?’ In the Origin of Species (1859) Darwin challenged many of the most deeply held beliefs of the Western world. His insistence on the immense length of the past and on the abundance of life-forms, present and extinct, dislodged man from his central position in creation and called into question the role of the Creator. He showed that new species are achieved by natural selection, and that absence of plan is an inherent part of the evolutionary process. Darwin's prodigious reading, experimentation, and observations on his travels fed into his great work, which draws on material from the Galapagos Islands to rural Staffordshire, from English back gardens to colonial encounters. The present edition provides a detailed and accessible discussion of his theories and adds an account of the immediate responses to the book on publication. The resistances as well as the enthusiasms of the first readers cast light on recent controversies, particularly concerning questions of design and descent.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Gaurav Singh Chauhan

PurposeThe article highlights potential mismeasurement in working capital allocations among academicians and practitioners and revisits the relationship between firms' working capital and productivity, as evident from their values.Design/methodology/approachThe research design acknowledges the relative role of firms' working capital vis-a-vis other assets in generating revenue, thereby effectively accounting for the overall asset efficiency in influencing firm value. The authors use a multivariate framework to draw inferences from the marginal impact of working capital and its components on firm value while controlling for asset utilization.FindingsThe authors find that, after accounting for asset utilization, the marginal impact of working capital and its components on firm value is quite weak. The results are consistent with the hypothesis that firms' trade-off between short-term and long-term assets per se should not have any value implications. After controlling for their asset turnovers, the authors find that higher allocations to working capital relative to other assets are not necessarily value-destructive. The findings contrast with the past literature.Research limitations/implicationsThe article, through its analytical and empirical insights, suggests that working capital allocations should be measured by managers and academicians relative to firms' other asset rather than their sales. Firm values should, therefore, be compared based on firms' overall asset utilization rather than inter-temporal allocations to short-term versus long-term assets.Originality/valueContrary to the existing literature so far, the article explicitly acknowledges the relative role of firms' other assets, and hence the overall asset utilization, to infer the marginal impact of working capital on firm value.


Author(s):  
Benjamin F. Trump ◽  
Irene K. Berezesky ◽  
Raymond T. Jones

The role of electron microscopy and associated techniques is assured in diagnostic pathology. At the present time, most of the progress has been made on tissues examined by transmission electron microscopy (TEM) and correlated with light microscopy (LM) and by cytochemistry using both plastic and paraffin-embedded materials. As mentioned elsewhere in this symposium, this has revolutionized many fields of pathology including diagnostic, anatomic and clinical pathology. It began with the kidney; however, it has now been extended to most other organ systems and to tumor diagnosis in general. The results of the past few years tend to indicate the future directions and needs of this expanding field. Now, in addition to routine EM, pathologists have access to the many newly developed methods and instruments mentioned below which should aid considerably not only in diagnostic pathology but in investigative pathology as well.


2019 ◽  
pp. 121-143
Author(s):  
Riccardo Resciniti ◽  
Federica De Vanna

The rise of e-commerce has brought considerable changes to the relationship between firms and consumers, especially within international business. Hence, understanding the use of such means for entering foreign markets has become critical for companies. However, the research on this issue is new and so it is important to evaluate what has been studied in the past. In this study, we conduct a systematic review of e-commerce and internationalisation studies to explicate how firms use e-commerce to enter new markets and to export. The studies are classified by theories and methods used in the literature. Moreover, we draw upon the internationalisation decision process (antecedents-modalities-consequences) to propose an integrative framework for understanding the role of e-commerce in internationalisation


2020 ◽  
Vol 28 (1) ◽  
pp. 106-121
Author(s):  
Kato Gogo Kingston

Financial crime in Nigeria – including money laundering – is ravaging Nigeria's economic growth. In the past few years, the Nigerian government has made efforts to tackle money laundering by enacting laws and setting up several agencies to enforce the laws. However, there are substantial loopholes in the regulatory and enforcement regimes. This article seeks to unravel the involvement of the churches as key drivers in money laundering crimes in Nigeria. It concludes that the permissive secrecy which enables churches to conceal the names of their financiers and donors breeds criminality on an unimaginable scale.


2020 ◽  
Vol 28 (2) ◽  
pp. 298-318
Author(s):  
Roman Girma Teshome

The effectiveness of human rights adjudicative procedures partly, if not most importantly, hinges upon the adequacy of the remedies they grant and the implementation of those remedies. This assertion also holds water with regard to the international and regional monitoring bodies established to receive individual complaints related to economic, social and cultural rights (hereinafter ‘ESC rights’ or ‘socio-economic rights’). Remedies can serve two major functions: they are meant, first, to rectify the pecuniary and non-pecuniary damage sustained by the particular victim, and second, to resolve systematic problems existing in the state machinery in order to ensure the non-repetition of the act. Hence, the role of remedies is not confined to correcting the past but also shaping the future by providing reforming measures a state has to undertake. The adequacy of remedies awarded by international and regional human rights bodies is also assessed based on these two benchmarks. The present article examines these issues in relation to individual complaint procedures that deal with the violation of ESC rights, with particular reference to the case laws of the three jurisdictions selected for this work, i.e. the United Nations, Inter-American and African Human Rights Systems.


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