We prove that for an orthogonal spacetime metric separable in space and time in comoving coordinates, the requirements of perfect fluid and non-singularity single out the unique family of singularity free cosmological models. Further homogeneous models could only be Bianchi I or FLRW while inhomogeneous ones can be with or without a singularity. PACS Numbers: 04.20Jb, 98.80Dr. 1 E-mail address:...

Leeches are common terrestrial and aquatic annelids, parasitizing or feeding on a wide range of host taxa. Here we report evidence for an unusual feeding behavior of eggfeeding in the piscicolid leech Cystobranchus virginicus. We identified distended specimens of C. virginicus in the nests of at least 4 different fish species: Campostoma anomalum, Moxostoma carinatum, Moxostoma sp. (either M. a...

The parenteral (muscle) larvae of Trichinella spiralis were found much more susceptible than previously reported to the deleterious effect of ethanol in vitro. Larvae were reversibly paralyzed when immersed for 6 hours in water containing 6% ethanol; at concentrations of 12-25%, the paralysis was irreversible. When trichinous meat was digested in artificial gastric juice containing 6-12% ethano...

based on volume-averaging concepts, liquid migration along subvertical fractures typically is predicted to be Field and laboratory tracer experiments were conducted to investisubject to strong matrix imbibition into the partially satugate the extent of tracer imbibition and penetration into unsaturated, fractured rock matrix at Yucca Mountain, Nevada. Field experiments rated rock (e.g., Wang an...

introduction: b. campestris is an old plant that commonly grows in arid and semi-arid areas. it has mucilage in the epidermal cells of canola seeds, a considerable variation in growth form and characteristics across the many cultivars. these species have in general, a flat root without an elongated crown, with stems that typically grow 30 to 120 cm tall. the leaves are large, soft, smooth or so...

In a study testing whether the relationship between exercise and health is moderated by one’s mindset, 84 female room attendants working in seven different hotels were measured on physiological health variables affected by exercise. Those in the informed condition were told that the work they do (cleaning hotel rooms) is good exercise and satisfies the Surgeon General’s recommendations for an a...

Tospoviruses are considered to be dependent on Thysanoptera for their existence in nature, but scarcely 0.15% of Thysanoptera species (9 of 5500) are known to be vectors. Moreover, these vector species are not closely related to each other, suggesting either that many thrips species have lost an association with tospoviruses or that each Tospovirus species has evolved an independent relationshi...

Reduced temperature and increased bulk density associated with conservation tillage systems cause lower seed germination, seedling emergence, and early growth rates resulting in reduced plant stands. Prediction of the influence of soil condition on seed imbibition through simple soil measurements would help make agronomic decisions such as planting date and/or density. Our objectives were to ev...

In Kevin Lynch's (1960) classic formulation of the image city, he asks us to think about urban environments as a series topographic registers on landscape, from monuments mountains, paths edges, nodes, and junctions. There is human element this vision, with its concentrations convergences in social space; hangout value street corner or how cut railway marks off cultural district. However, these...