Mitochondrial dynamics and segregation during the asymmetric division of Arabidopsis zygotes

The zygote is the first cell of a multicellular organism. In most angiosperms, the zygote divides asymmetrically to produce an embryo-precursor apical cell and a supporting basal cell. Zygotic division should properly segregate symbiotic organelles, because they cannot be synthesized de novo. In this study, we revealed the real-time dynamics of the principle source of ATP biogenesis, mitochondria, in Arabidopsis thaliana zygotes using live-cell observations and image quantifications. In the zygote, the mitochondria formed the extended structure associated with the longitudinal array of actin filaments (F-actins) and were polarly distributed along the apical–basal axis. The mitochondria were then temporally fragmented during zygotic division, and the resulting apical cells inherited mitochondria at higher concentration compared to the basal cells. Further observation of postembryonic organs showed that these mitochondrial behaviours are characteristic of the zygote. Overall, our results showed that the zygote has spatiotemporal regulation that unequally distributes the mitochondria.

TYPES OF INNOVATION AND ANALYSIS OF THEIR USAGE IN ECONOMY OF UZBEKISTAN

The article shows different types of innovation and analyzes the number of technological, organizational and marketing innovation introduced in the Republic of Uzbekistan. When costs of innovation were analyzed it was found out that the principle source of financing innovation enterprises was the country’s own funds, which in 2017 made 2 956.0 bn sums or 71%. The structure of the processing industry was also studied by the degree of technological types of production, where the major share falls on low-technological types of production. Taking into account the importance of highly-technological types of production the necessity of their extension was grounded. Innovation by types of activity was studied, specific features of innovation processes in agriculture were identified and key problems connected with the usage of different types of innovation was summarized and it can bring us to the conclusion that classification of innovation by different criteria can help build the structure and use efficient methods of management corresponding to each type of innovation. The proposed lines in innovation policy could create conditions necessary to intensify innovation processes in different industries and sectors of national economy of Uzbekistan. The research was based on the complex approach to the subject being investigated and used analytical, graphic and monographic methods as well as the logical analysis.

Liberation through Seeing: Screening The Tibetan Book of the Dead

The text known in English as The Tibetan Book of the Dead is arguably the principle source for popular understandings of Tibetan Buddhist conceptions of death. First translated into English in 1927, subsequent translations have read it according to a number of interpretive frameworks. This paper examines two recent films that take The Tibetan Book of the Dead as their inspiration: Bruce Joel Rubin’s Jacob’s Ladder (1990) and Gaspar Noé’s Enter the Void (2009). Neither of these films overtly claim to be depicting The Tibetan Book of the Dead, but the directors of both have acknowledged that the text was an influence on their films, and both are undeniably about the moment of death and what follows. The analysis begins with the question of how, and to what degree, each of the films departs from the meaning and purpose of The Tibetan Book of the Dead, before moving on to examine the reasons, both practical and ideological, for these changes. Buddhist writer Bruce Joel Rubin wrote a film that sought to depict the death experience from a Tibetan Buddhist perspective, but ultimately audience expectation and studio pressure transformed the film into a story at odds with Tibetan Buddhism. Gaspar Noé wrote and directed a film that is based on a secular worldview, yet can be seen to be largely consistent with a Tibetan Buddhist reading. Finally, I consider if, and to what extent, these films function to express or cultivate an experiential engagement with Tibetan Buddhist truths and realization, concluding that Jacob’s Ladder does not, while Enter the Void largely succeeds, despite the intention of its creator.

Topologies

This chapter argues that Weil's overturning of Arendt's views is not limited to the judgment on Rome. The very Christianity that Arendt situates as the commencement of the drift toward the modern constitutes for Weil both its internal rampart and its principle source of contention simultaneously. Indeed, for Weil Christianity is the spiritual thread that allows modernity to continue advancing in light of its originary inspiration. This does not mean that the two interpretative horizons are openly contradictory. They even coincide at one point precisely in their severe judgment of historical Christianity, which, paradoxically, Weil blames for the de-Christianization of our times. However, their two perspectives diverge once again as Arendt observes that this phenomenon surely occurs because Christianity is lacking in mundane, public figures. In contrast, Weil believes that it is precisely Christianity's spirituality that makes it the unique, authentic “continuation” of Greece.

The Islamist Trend in Egyptian Law

The past four decades have witnessed profound transformations in the Egyptian legal system and in the Egyptian legal profession. Article 2 of the Egyptian Constitution now enshrines Islamic jurisprudence as the principle source of law, thus establishing an important symbolic marker at the heart of the state and opening avenues for Islamist activists to press litigation campaigns in the courts. Additionally, the Islamist trend gained prominence within the legal profession, a development that is particularly striking given the long and illustrious history of the Lawyer's Syndicate as a bastion of liberalism. Despite these significant shifts, however, Islamist litigation has achieved only limited legal victories. This article traces the political and socio-economic variables that underlie the Islamist trend in Egyptian law, and examines the impact of Islamist litigation in the Egyptian courts.

Atmospheric water vapour content over La Silla Paranal Observatory

Water vapour is the principle source of opacity at infrared wavelengths in the earth's atmosphere. Measurements of atmospheric water vapour serve two primary purposes when considering operation of an observatory: long-term monitoring of precipital water vapour (PWV) is useful for characterizing potential observatory sites, and real-time monitoring of PWV is useful for optimizing use, in particular for mid-IR observations.

Genome of Mycoplasma arthritidis

ABSTRACT The genomes of several species of mycoplasma have been sequenced. Most of these species rely on the glycolytic pathway for energy production, with the one exception of Ureaplasma, a species that breaks down urea as its principle source of acquiring energy. Several species, including as Mycoplasma arthritidis, are nonglycolytic and can use arginine as their source of energy. Described here are the genome sequence and a transposon library of M. arthritidis. The genome of 820,453 bp is typical in size for a mycoplasma and contains two large families of genes that are predicted to code for phase-variable proteins. The transposon library was constructed using a minitransposon that inserts stably into the mycoplasma genome. Of the 635 predicted coding regions, 218 were disrupted in a library of 1,100 members. Dispensable genes included the gene coding for the MAM superantigen and genes coding for ribosomal proteins S15, S18, and L15.

Egypt’s Reservations to the United Nations Convention on the Elimination of Discrimination Against Women and Women’s Rights in Egypt

This paper addresses the role that the Convention on the Elimination of Discrimination Against Women (CEDAW) can play to improve women’s conditions and secure their rights in Egypt, in light of that country’s religious-based reservations to the UN convention and its recent constitutional amendment making the Shari`ah its principle source of legislation. Specifically, it addresses Egypt’s reservations to Article 16, which concerns the eradication of discrimination against women in cases of divorce, as this area has been the focus of recent legislative reform. The paper is limited to Egypt, because it is the leading Muslim state in providing women’s rights in the area of family law.

Rubella in pregnant women and newborns in France: 2001 data from the Rénarub network

The Rénarub network, set up in 1976, is the principle source of information on the epidemiology of rubella in France (1, 2). Its objective is to collate, at national level, cases of rubella occurring during pregnancy and congenital rubella, and more widely, to evaluate the impact of vaccination policy and prevention measures put in place in France with the aim of eliminating congenital rubella. The full version of this article is available on the website of the Institut de Veille Sanitaire, including the new case definition, more detailed results (http://www.invs.sante.fr/publications/2003/rubeole_2001/rubbeh_2001.pdf), and a list of laboratories participating in the network (http://www.invs.sante.fr/publications/2003/rubeole_2001/reseau_renarub.htm).

The CNO-Cycle Elements in Atmospheres of B-Type Main Sequence Stars

The aim of this short review is to pay attention to some problems connected with the He, C and N abundances in atmospheres of B-type main sequence stars. These elements participate in CNO-cycle which is the principle source of energy in such stars. As known, the He, C and N abundances in stellar interiors are considerably changed owing to CNO-cycle (oxygen abundance alter insignificantly). There are some variations of the He, C and N abundances in stellar atmospheres, too, and our task is to discuss probable causes of such variations. It is necessary to emphasize that only normal B-type stars are considered (not He-rich or He-weak, for example).