A bacterial facultative parasite of Gracilaria conferta

Bacterial epiphytes of Gracilaria conferta were quantified. Saprophytic bacteria reached 350 times and agar degraders 25000 times higher numbers g-1 algal wet wt on tissues infected with the 'white tips disease', as compared to healthy tissues. A bacterial inducing agent of the 'white tips disease' was detected. Addition of 10(2) to 10(3) cells of this isolate ml-1 medium led to increased rates of infection. This effect did not occur if the isolate was autoclaved before addition. The virulent bacteria could always be isolated from infected tissues. It frequently, but not always, infected G. conferta and should be regarded as a facultative parasite. Several factors influenced the disease development. Temperatures above 20-degrees-C, in combination with photon flux densities of more than 200 muE m-2 s-1, increased the rate of infection. Relatively low amounts (more than 25 mug ml-1) of certain organic nutrients (peptone and yeast extract) led to strong manifestations of the disease. Addition of agar did not cause any symptoms, while 5 mg l-1 of the antibiotic rifampicin prevented the alga from being infected

A Companion to the Ancient Greek Language (Book Review)

It has become customary for reviews of handbooks to express misgivings toward the genre and its ever-increasing presence. But whatever one might think of companion volumes, this is a useful book. It boasts a wide range of generally high-quality essays by a parade of eminent scholars. Perhaps its most praiseworthy feature is the clarity and accessibility of many of its contributions, which makes them ideal starting points for the non-specialist. We will no doubt be assigning several of these chapters in our classes

RECODIS : Resilient communication services protecting end-user applications from disaster-based failures

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The colometry of Tocharian 4X15-syllable verse

We identify the basic colometry of Tocharian 4x15-syllable verse as 4+3+3+5 (traditionally 7+8), but we find no support for the putative alternative colometries of 4x15 often cited in the literature (viz. 6+4+5 and 8+7). In rare cases in which the medial caesura is violated, a word boundary after syllable 6 or 8 is highly probable by chance alone, as we confirm through corpus statistics. If the colometry is indeed invariable, one major argument for the influence of Indic on Tocharian meter is undermined. We further reinforce that the medial caesura after syllable 7 is no stronger than the final one after syllable IO, despite their putative statuses as major vs. minor caesurae, respectively. The more complex picture of the metrical practice of the poets demands that we call into question certain proposed restorations

The role of intelligences in teams: a systematic literature review

With organizations moving towards team-based structures, there is a great interest in studying organizational teams. Using a comprehensive, thorough, and systematic literature review, this study reviews the existing studies that have contributed to the importance of intelligences in various types of teams. This study intends to structure existing research, identify its current trends, and provide an overview of recent research strands and topics on the role of intelligences in organizational teams. Searches were conducted of Web of Science and EBSCO databases, and 44 eligible studies, published in Chartered Association of Business Schools (ABS) ≥ 2-star journals, were identified. The results indicate that cognitive ability, emotional intelligence, and cultural intelligence can be considered important factors contributing to various team-related outcomes. Furthermore, the findings demonstrate a growing interest in research on global virtual teams, which is a trend that is predicted to continue. Suggestions for future research directions are discussed

Saturn integrated circuit reliability test program Quarterly progress report, Jul. - Sep. 1966

Saturn integrated circuit reliability tests performed to improve failure mode screenin

Robot Rights? Let's Talk about Human Welfare Instead

The 'robot rights' debate, and its related question of 'robot responsibility', invokes some of the most polarized positions in AI ethics. While some advocate for granting robots rights on a par with human beings, others, in a stark opposition argue that robots are not deserving of rights but are objects that should be our slaves. Grounded in post-Cartesian philosophical foundations, we argue not just to deny robots 'rights', but to deny that robots, as artifacts emerging out of and mediating human being, are the kinds of things that could be granted rights in the first place. Once we see robots as mediators of human being, we can understand how the `robots rights' debate is focused on first world problems, at the expense of urgent ethical concerns, such as machine bias, machine elicited human labour exploitation, and erosion of privacy all impacting society's least privileged individuals. We conclude that, if human being is our starting point and human welfare is the primary concern, the negative impacts emerging from machinic systems, as well as the lack of taking responsibility by people designing, selling and deploying such machines, remains the most pressing ethical discussion in AI.Comment: Accepted to the AIES 2020 conference in New York, February 2020. The final version of this paper will appear in Proceedings of the 2020 AAAI/ACM Conference on AI, Ethics, and Societ

The influence of national culture on business students\u27 career attitudes - An analysis of eight countries | Der einfluss nationaler kulturen auf die karriere-einstellungen von wirtschaftsstudenten - Eine analyse aus acht landern

Despite the fact that career attitudes and their influence on career outcomes is widely researched in the field of occupations and careers, little is known about the influence of cultural norms and values on career attitudes. We propose that national cultural dimensions influence students\u27 career planning, career adaptability, career optimism, and career-related knowledge. We test these relations using an eight country sample with more than 1,800 students. The results show that national culture has significant effect on all four career attitudes and in particular on career planning and career optimism. We discuss theoretical and practical implications and provide future research directions

Caesurae, Bridges, and the Colometry of Four Tocharian B Meters

The Tocharians composed verse in hierarchical structures, with the verse dominating major cola, and the major colon in turn dominating one or more minor cola. After providing much-needed descriptive data on Tocharian meter, we assess the evidence for the distinction between major vs. minor caesurae in some of the most popular Tocharian B meters, finding support for the commonly assumed colometries in some but not all cases. Of particular interest is the recurring 4+3-syllable colon, since the violability of its internal (putatively minor) caesura varies significantly across meters. We argue that this varying strictness is indeed a function of the meter as opposed to position in the verse, verse length, idiosyncrasies of certain texts, and so forth. We then use a systematic prose comparison method to test the meters for bridges, finding evidence for monosyllable avoidance in (certain) colon-final positions, despite an overall preference for monosyllables in verse vis-à-vis prose. Finally, we discuss the implications that our study has for the restoration of fragmentary Tocharian texts.Linguistic

Transport limits in defect-engineered LaAlO3/SrTiO3 bilayers

The electrical properties of the metallic interface in LaAlO3/SrTiO3 (LAO/STO) bilayers are investigated with focus on the role of cationic defects in thin film STO. Systematic growth-control of the STO thin film cation stoichiometry (defect-engineering) yields a relation between cationic defects in the STO layer and electronic properties of the bilayer-interface. Hall measurements reveal a stoichiometry-effect primarily on the electron mobility. The results indicate an enhancement of scattering processes in as-grown non-stoichiometric samples indicating an increased density of defects. Furthermore, we discuss the thermodynamic processes and defect-exchange reactions at the LAO/STO-bilayer interface determined in high temperature equilibrium. By quenching defined defect states from high temperature equilibrium, we finally connect equilibrium thermodynamics with room temperature transport. The results are consistent with the defect-chemistry model suggested for LAO/STO interfaces. Moreover, they reveal an additional healing process of extended defects in thin film STO