Catalogue of solar activity during 1957

Catalog of major solar activity during 195

Solar activity catalogue. Volume I - Catalogue of solar activity during 1954 - 1956

Catalog of solar activity during 1954-195

Catalogue of Solar Activity During 1958, Volume III

Solar flares, sunspots, radio emissions, solar events, geomagnetic storms, solar-terrestrial effects, and balloon flights for 195

Solar activity catalogue. Volume 4 - Catalogue of solar activity during 1959

Solar activity catalog covering solar flares, terrestrial effects, plage regions, radio emissions, geomagnetic storms, and balloon flight

Highly Connected Multicoloured Subgraphs of Multicoloured Graphs

Suppose the edges of the complete graph on n vertices, E(Kn), are coloured using r colours; how large a k-connected subgraph are we guaranteed to find, which uses only at most s of the colours? This question is due to Bollobás, and the case s=1 was considered in Liu et al. [Highly connected monochromatic subgraphs of multicoloured graphs, J. Graph Theory, to appear]. Here we shall consider the case s is greater than or equal to 2, proving in particular that when s=2 and r+1 is a power of 2 then the answer lies between 4n/(r+1)-17kr(r+2k+1) and 4n/(r+1)+4 and that phase transitions occur at s=r/2 and when s is of order r^{1/2}. We shall also mention some of the more glaring open problems relating to this question

Three New Long Period X-ray Pulsars Discovered in the Small Magellanic Cloud

The Small Magellanic Cloud is increasingly an invaluable laboratory for studying accreting and isolated X-ray pulsars. We add to the class of compact SMC objects by reporting the discovery of three new long period X-ray pulsars detected with the {\it Chandra X-ray Observatory}. The pulsars, with periods of 152, 304 and 565 seconds, all show hard X-ray spectra over the range from 0.6 - 7.5 keV. The source positions of the three pulsars are consistent with known H-alpha emission sources, indicating they are likely to be Be type X-ray binary star systems.Comment: Accepted for publication in the Astrophysical Journa

Effectiveness of a White-Tailed Deer Exclusion Fence Based on Traction Limitations of the Hoof: The Slipper Fence

We hypothesized that an exclusion fence could be devised to capitalize on traction limitations of the hooves of white-tailed deer (Odocoileus virginianus). Hexagonal plots (9.8 m wide) enclosed by a 2.4 m field fence with two openings (4.9 m) were established. Data were collected daily on consumption of corn provided (2.27 kg) and events recorded by infrared monitors (IR) for treatment and control sites. Five-day treatment periods consisted of test panels (4.9 m x 2.4 m) placed in plot openings at 0°, 5° and 10° slopes, and lubricant applied at the 10° slope. Deer consumed all corn provided at control sites. At the 10 ° slope, daily corn consumption decreased (1.50 kg ± 0 .26, p \u3c .0 l ), and IR events were lower (p \u3c .01) at treatment sites (23.6 ± 3.2) compared to controls (50.3 ± 9.6). With the addition of a lubricant, corn consumption decreased further (p \u3c .001) to 0. 17 kg ± 0.03, and IR recorded events were lower (p \u3c .001) at treatment sites (6.58 ± 0 .89) compared to controls (44.8 ± 3.1). Results of this study indicate that traction limitation of the hoof can be exploited

Effectiveness of a Perceived Solid Barrier as an Exclusion Fence to Prevent White-Tailed Deer Damage

We hypothesized that a visually solid barrier of cloth would provide an effective exclusion fence for free ranging white-tailed deer (Odocoileus virginianus). Three plots consisting of 2, 10 m x 10 m squares were established in pastures. Data were collected daily for consumption of com provided (2.27 kg) and events recorded by infrared game monitors. Following construction of the burlap fence at 1.7 m height, corn consumption decreased (0.07 ± 0.01 kg/day, P \u3c .001). The number of Infrared monitor events recorded also decreased within the enclosures (2.13 ± 0.04 events/day, P \u3c .001) compared to controls (46.0 ± 2.2 events/day). During the second stage of the experiment, two of the three plots were reestablished 45 days later. Fence heights began at 65 cm and were raised 15 cm each 5 days, until reaching 1.7 m. At 1.7 m, corn consumption decreased by 30% (1.56 ± 0.23 kg/day, P \u3c .01). The number of infrared monitor-recorded events was also lower at fence heights \u3e65 cm (P \u3c .03). Results indicate that a visually solid barrier has potential to be an effective exclusion fence

The Potential of Texture as a Deer Deterrent: The Slime Effect

We examined the potential of altering the surface texture of plant material as a potential deterrent to consumption by white-tailed deer. Two u-shaped garden plots were divided into 16, uniform plots (2.2mx4.3m) each containing approximately 50 chrysanthemums (C. morifolium). The plots were randomly assigned to one of the treatments or as a control. Immediately after planting, ten plants were randomly selected and marked within each plot. Plants were misted and treatments applied by hand broadcast. Treatments consisted of methyl cellulose (38.2g) and two-levels of a proprietary polymer (9. lg and 45.5g). Upon contact with water, methyl cellulose became a viscous slime while the proprietary polymer was similar to gelatin. Each substance was visible on the plants throughout the study. Bite marks were counted on the ten marked plants within each plot, on 4 occasions at 3-day intervals. None of the treatments were effective in deterring deer from consuming plant material. Differences were noted among plot locations, suggesting deer entered the garden predominantly from a single general direction and consumed forages most readily available

Catalogue of Solar Activity During 1960-1963, Volume V

Catalog on solar activity from 1960 to 196