We have studied patterns of DNA sequence variation and evolution for 22 genes located on the neo-X and neo-Y chromosomes of Drosophila miranda. As found previously, nucleotide site diversity is greatly reduced on the neo-Y chromosome, with a severely distorted frequency spectrum. There is also an accelerated rate of amino-acid sequence evolution on the neo-Y chromosome. Comparisons of nonsynony...

Causal powers, say, an electron’s power to repel other electrons, are had in virtue of having properties. Electrons repel other electrons because they are negatively charged. One’s views about causal powers are shaped by—and shape—one’s views concerning properties, causation, laws of nature and modality. It is no surprise, then, that views about the nature of causal powers are generally embedde...

Chia-Hao Cheng, Ching-Ho Chang, and Hwei-yu Chang (2011) Early-stage evolution of the neo-Y chromosome in Drosophila albomicans. Zoological Studies 50(3): 338-349. Numerous theories have specified that an originally autosomal neo-Y chromosome arm is expected to undergo degenerative evolution. Neosex chromosomes of Drosophila albomicans originated from 2 Robertsonian translocation events, one fo...

The “Advanced Propellant/Additive Development for Gas Generator” project is a collaborative effort between General Dynamics Ordnance and Tactical Systems (GD-OTS) and the Naval Air Warfare Center-Weapons Division (NAWCWD). The objectives of this NGP project are to develop new highly efficient, environmentally acceptable, chemically active fire suppressant capabilities based upon solid propellan...

This article critically examines the contemporary resurgence of empiricism (or “neo-empiricism”) in philosophy, psychology, neuropsychology, and artificial intelligence. This resurgence is an important and positive development. It is the first time that this centuries-old empiricist approach to cognition is precisely formulated in the context of cognitive science and neuroscience. Moreover, neo...

Researchers studying Y chromosome evolution have drawn attention to neo-Y chromosomes in Drosophila species due to their resembling the initial stage of Y chromosome evolution. In the studies of neo-Y chromosome of Drosophila miranda, the extremely low genetic diversity observed suggested various modes of natural selection acting on the nonrecombining genome. However, alternative possibility ma...

Absorbing aerosols can strongly absorb solar radiation and have a profound impact on the global and regional climate. Black carbon (BC), organic carbon (OC) and dust are three major types of absorbing aerosols. In order to deepen the overall understanding of absorbing aerosols over East Asia and provide a basis for further investigation of its role in enhanced warming in drylands, the spatial-t...

Lisoněk recently reformulated the characterization of Charpin and Gong of a large class of hyper-bent functions in terms of cardinalities of hyperelliptic curves following previous ideas of Lachaud and Wolfmann, and Katz and Livné. In this paper, we present a generic approach of such ideas and show that it applies naturally to a distinct family of functions proposed by Mesnager. Doing so, a pol...

When nonmetastatic dimethylbenzanthracene-induced rat mammary cancer cells (KM( I ) were transfected with a control plasmili containing the neomycin resistance gene (i.e.. Neo/Only), none of the five clonal Neo/Only transfectants isolated and characterized was metastatic, only one of five had a single structural chromosomal abnormality, and only one of five had a single numerical chromosomal ch...