Nueva especie de grillo mirmecófilo de Mallorca, islas Baleares, España (Orthoptera, Myrmecophilidae)

A new species of ant-loving cricket, Myrmecophilus fuscus sp. n., is described and illustrated, based on individuals collected on the Balearic island of Mallorca, Spain. Lasius lasioides (Emery, 1869) was the host ant species. The habitat was evergreen oak forest. The holotype specimen was deposited in the collection of the Muséum d’Histoire Naturelle de Genève. The species is closely related to Myrmecophilus acervorum (Panzer, [1799]) and belongs to the subgenus Myrmecophilus Berthold, 1827.Se describe e ilustra una nueva especie de grillo mirmecófilo, Myrmecophilus fuscus sp. n., procedente de la isla de Mallorca (islas Baleares, España). Lasius lasioides (Emery, 1869) es la especie hospedadora y su hábitat es el bosque perenne de roble. El holotipo se ha depositado en la colección del Muséum d’Histoire Naturelle de Ginebra. La nueva especie está estrechamente relacionada con Myrmecophilus acervorum (Panzer, [1799]) y pertenece al subgénero Myrmecophilus Berthold, 1827

Worm Epidemics in Wireless Adhoc Networks

A dramatic increase in the number of computing devices with wireless communication capability has resulted in the emergence of a new class of computer worms which specifically target such devices. The most striking feature of these worms is that they do not require Internet connectivity for their propagation but can spread directly from device to device using a short-range radio communication technology, such as WiFi or Bluetooth. In this paper, we develop a new model for epidemic spreading of these worms and investigate their spreading in wireless ad hoc networks via extensive Monte Carlo simulations. Our studies show that the threshold behaviour and dynamics of worm epidemics in these networks are greatly affected by a combination of spatial and temporal correlations which characterize these networks, and are significantly different from the previously studied epidemics in the Internet

A DNA barcode reference library for Swiss butterflies and forester moths as a tool for species identification, systematics and conservation.

Butterfly monitoring and Red List programs in Switzerland rely on a combination of observations and collection records to document changes in species distributions through time. While most butterflies can be identified using morphology, some taxa remain challenging, making it difficult to accurately map their distributions and develop appropriate conservation measures. In this paper, we explore the use of the DNA barcode (a fragment of the mitochondrial gene COI) as a tool for the identification of Swiss butterflies and forester moths (Rhopalocera and Zygaenidae). We present a national DNA barcode reference library including 868 sequences representing 217 out of 224 resident species, or 96.9% of Swiss fauna. DNA barcodes were diagnostic for nearly 90% of Swiss species. The remaining 10% represent cases of para- and polyphyly likely involving introgression or incomplete lineage sorting among closely related taxa. We demonstrate that integrative taxonomic methods incorporating a combination of morphological and genetic techniques result in a rate of species identification of over 96% in females and over 98% in males, higher than either morphology or DNA barcodes alone. We explore the use of the DNA barcode for exploring boundaries among taxa, understanding the geographical distribution of cryptic diversity and evaluating the status of purportedly endemic taxa. Finally, we discuss how DNA barcodes may be used to improve field practices and ultimately enhance conservation strategies

Sistan (Afghan) Scrub Sparrow Passer (moabiticus) yatii: Notes on Common Name, Status and Threats

We searched for the Sistan Scrub Sparrow Passer (moabiticus) yatii in the wetlands on the Iranian side of the Sistan basin during a visit to Iran in December 2010. At least 300 Sistan Scrub Sparrows were found in the dry basin of the Hamoun-e Saberi lake. No Sistan Scrub Sparrows were found at the Chah Nimeh water reservoir, along the River Hirmand on the Afghan border and at an irrigated site near Zahak. The habitat changes caused by extreme droughts in the range of the Sistan Scrub Sparrow in recent decades are discussed. Given the small range of the species, local changes in its habitat could have devastating effects. In addition, the common name of the species is discussed. We suggest that the species be called Sistan Scrub Sparrow instead of the previous names Afghan Scrub Sparrow or Yate’s Sparrow

Volume Rendering Mathematical Models and Algorithmic Aspects

In this paper various algorithms for rendering gaseous phenomena are reviewed. In computer graphics such algorithms are used to model natural scenes containing clouds, fog, ames and so on. On the other hand displaying three dimensional scalar datasets as cloudy objects has become an important technique in scienti c visualization. Our emphasis is on this latter subject of so-called direct volume rendering. All algorithms will be discussed within the framework of linear transport theory. The equation of transfer is derived. This equation is suitable to describe the radiation eld in a participating medium where absorption, emission, and scattering of light can occur. Almost all volume rendering algorithms can be shown to solve special cases of the equation of transfer. Related problems like the mapping from data values to model parameters or possible parallelization strategies will be discussed as well.

Visualization and 3D-Interaction for Hyperthermia Treatment Planning

In regional hyperthermia extensive numerical simulations are required for optimizing individual cancer therapy treatments. To take full advantage of such simulations a therapy planning system is needed. In this paper we discuss a new hyperthermia planning system, focussing on its visualization and 3D-interaction functionality. Our software, called HyperPlan, assists the whole treatment planning process with state-of-the-art numerics and visual controlling techniques. Its flexible design allows it to be used in both hyperthermia research and clinical practice. Introduction Planning systems are well established in conventional radiotherapy. They have also proved to be essential for hyperthermia treatment planning. In this paper we deal with regional hyperthermia that employs radiofrequency waves to heat up the tumor region non-invasively. The goal is to locally achieve temperatures higher than 41C ffi without affecting healthy tissue. Numerical simulations can help to optimize an indi..

Investigation of Alkyne Regioselectivity in the Ni-Catalyzed Benzannulation of Cyclobutenones

A Ni-catalyzed benzannulation reaction of cyclobutenones and alkynes provides a rapid synthesis of heavily substituted phenols. The regioselectivity of this reaction can be modulated by variation of substituents on the alkyne. Though the incorporation of Lewis basic donors provides modest selectivities, the use of aryl substituents can provide high levels of regiocontrol. Finally, alkynylboronates derived from alkyl-substituted acetylenes provide both high yields and regioselectivities. This study suggests that alkynes bearing one sp2- and one sp3-based substituent can undergo benzannulation with high levels of regiocontrol whereby the sp3-based group is incorporated ortho-to the phenolic OH