The Simuliidae (Diptera) of British Honduras

1960 ◽  
Vol 50 (4) ◽  
pp. 703-710 ◽  
Author(s):  
D. J. Lewis ◽  
P. C. C. Garnham

Several collections of pupae and adults of Simuliid Diptera were made in British Honduras between 9th January and 18th February 1958. Samples were collected in the Mountain Pine Ridge and El Cayo areas in the west, and along the highway traversing the eastern part of the country between Caves Branch and Stann Creek.Thirteen species of Simulium were found, nine of which are named, including S. quadrivittatum Lw. and S. metallicum Bellardi which are very annoying biters. A, few observations on distribution and habits are recorded.Of the two anthropophilic species of Simulium found, one is known to be a vector of onchocerciasis, if only of secondary importance, and the capability of the other to transmit the disease is unknown. The disease has apparently never been established in British Honduras and is present in Guatemala. The risk of infection to settlers moving into territory near Guatemala cannot be assessed without detailed knowledge of the epidemiology of the disease in Central America.

1884 ◽  
Vol 12 ◽  
pp. 412-432
Author(s):  
A. Macfarlane

While, in recent years, the progress of the science of electricity has been very rapid, few investigations have been made in the old province of frictional electricity. It cannot be doubted, however, that the laws connecting electricity with friction, and with the nature of the substances rubbed, are of great importance; and the acquisition of more detailed knowledge in this department may throw some light on the still imperfect theory of the voltaic cell. Several electricians have expressed an opinion that the development of electricity by friction is only a modification of the development of electricity by contact–that friction is contact in which the number of points which come together is increased by sliding the one substance over the other. But whether friction is a form of contact, or contact a form of friction, or the two co-ordinate to one another, it is interesting to inquire whether the metals can be arranged in an electro-frictional series similar to the electro-contact series; and if so, to observe the relation of the former to the latter.


2010 ◽  
Vol 28 (2) ◽  
pp. 499-513 ◽  
Author(s):  
A. B. Collier ◽  
S. Bremner ◽  
J. Lichtenberger ◽  
J. R. Downs ◽  
C. J. Rodger ◽  
...  

Abstract. Whistlers observed at Dunedin, New Zealand, are an enigma since they do not conform to the classical model of whistler production developed by Storey (1953). It is generally accepted that the causative lightning stroke for a whistler observed on the ground at a particular location was located in the neighbourhood of the conjugate point, and generated an electromagnetic signal which propagated in a plasmaspheric duct stretched along a magnetic field line linking the two hemispheres. The causative stroke is thought to have occurred within reasonable proximity of one footpoint of this field line, while the observer was located in the vicinity of the other footpoint. Support for this model has come from a number of previous studies of whistler-lightning observations and whistler-induced particle precipitation. However, as demonstrated here, this model does not always apply. Whistlers detected at Dunedin are nearly as common as those at Tihany, Hungary, despite there being at least 3 orders of magnitude more lightning in Tihany's conjugate region compared to that of Dunedin. Furthermore, whereas Tihany whistlers are generally observed at night, consistent with historical observations, Dunedin whistlers occur predominantly during the day. This paper aims to resolve two paradoxes regarding whistler occurrence at Dunedin: (i) an observation rate which is at variance with conjugate lightning activity, and (ii) a diurnal occurrence peak during daylight. The technique developed by Collier et al. (2009) is used to diagnose the location of the source lightning for Dunedin whistlers. It is found that the majority of the causative strokes occur within a region extending down the west coast of Central America.


1998 ◽  
Vol 30 (2) ◽  
pp. 199-225 ◽  
Author(s):  
Salwa Ismail

The rise of Islamist groups in Egypt's polity and society is given force through the articulation of a set of competing yet inter-linked discourses that challenge the authority of the post-independence secular nationalist discourse and attempt to reconstitute the field of struggle and domination in religious terms. Concurrently, these discourses seek authoritative status over the scope of meanings related to questions of identity, history, and the place of Islam in the world. The interpretations and definitions elaborated in reference to these questions by radical Islamist forces (the jihad groups and other militant Islamist elements) are often seen to dominate the entire field of meaning. However, claims to authority over issues of government, morality, identity, and Islam's relationship to the West are also made in and through a discourse that can appropriately be labeled “conservative Islamist.” The discourse and political role of conservative Islamism are the subject of this article.


1969 ◽  
Vol 64 ◽  
pp. 155-258 ◽  
Author(s):  
R. A. Tomlinson

In the first chapter of Perachora i, Humfry Payne gave a brief survey of the Perachora peninsula, and of his own excavations. There he distinguished between the area of the town, situated in the plain that lies between Lake Vouliagmeni and the tip of the promontory, and the ‘Heraion Valley’ whose buildings were almost wholly of a public nature. His description of the town envisaged further excavation; but his own activities were concentrated in the area of public buildings, the two sanctuaries of Hera Akraia by the harbour and of Hera Limenia in the Heraion valley itself.The two volumes of Perachora are concerned with the discoveries Payne made in these two sanctuaries. Omitted from them are the other public buildings in or adjacent to the sanctuaries. These consist of the angled stoa, the so-called ‘agora’, the double-apsidal cistern, and the hestiatorion or dining-hall. Also omitted is the detailed study of the town which he promised. The stoa and ‘agora’ (which is now to be renamed ‘the west court’, since, whatever its actual function, it was certainly not an agora) have now been published separately by Dr. J. J. Coulton. The present account gathers together the remaining public buildings in the vicinity of the sanctuaries, the apsidal cistern and the hestiatorion, together with the ancient remains in the area of the town.


1838 ◽  
Vol 128 ◽  
pp. 343-349

It was the object in the experiments recorded in this paper, to determine the relative magnetic forces soliciting both the dipping, and horizontal needles, by observing the times of their completing a given number of vibrations at the various places visited during a period of three years, on the North American and West India Station, in Her Majesty’s Ship Racehorse. The dipping instrument used was one of modern construction by Dollond. Each observation for the dip consisted of an equal number of readings of the positions of the needle, with the face of the instrument east and west, before and after the inversion of the poles, and a mean of all the readings taken for the true dip. The instrument had two needles fitted to it, one of which being used solely for the purpose of observing its vibrations, its magnetism was therefore never interfered with, and this needle in this paper is distinguished by the letter B. The other needle was kept for the purpose of determining the dip, and the results obtained with it are given in Table I.


1963 ◽  
Vol 29 (1) ◽  
pp. 98-99 ◽  
Author(s):  
William R. Bullard

AbstractA small ruin of presumed ancient Maya origin is described. This ruin is the only certain prehistoric structure discovered on the Mountain Pine Ridge of British Honduras, and it is associated with a natural granite outcrop of monumental appearance in such a way as to suggest that the two formed a shrine of a type not previously reported in Lowland Maya archaeology.


Author(s):  
Kálmán Magyar

This article deals with excavations made in Fonyód between 1996–1998 and in 2001, where we located 10 and 11th century old cemeteries. The first excavation was centered by the sandpit near the 150 year-old press house. Due to nu-merous field works lasted for decades, a large group of burials were almost completely destroyed. We were able to determi-nate its age and characteristics from the skeleton remains and funeral offerings of one grave (S-terminalled lockrings). Dur-ing our other excavation made on a small dune at Sándor street 26, we found a similar cemetary from the 10–11th cen-tury with 54 graves and burial remains. Based on the pottery findings, it was in use by the Romans and later became the funeral site of the early inhabitants of Fonyód. The early Ar-padian cemetary was located on the west side of the mound. The graves were situated westward-eastward mostly without funeral offerings, but in nine cases we recovered notable fin-digs like bronze S-terminalled lockrings, shell necklaces and bronze rings on the annulary bones. We could not find any coffins or traces of bricks in the recovered area. There were many instances of skeleton remains of adolescent or small children beside the adult skeletons – mostly female – which indicate family burials. Furthermore, we recovered skeletons positioned with both arms across the waist. Towards the west, a five meter wide empty tract occured to us where a jar and two kinds of animal bones surfaced – one of a dog and the other possibly of a boar. Considering there were no other find-ings in that area, it might have been a significant place for burial customs or further ceremonial rituals.


2017 ◽  
pp. 23
Author(s):  
Antonio Krapovickas ◽  
Paul A. Fryxell ◽  
David M. Bates

Four species that have been variously included by previous authors in the genera Sida or Pseudabutilon are segregated as the distinct genus, Allosidastrum (Hochr.) stat. nov. A .,dolichophyllum from Venezuela is described as new. The most widespread species is A . pyramidatum (Cav.) comb. nov., which occurs over most of the range of the genus from Mexico and the West Indies to parts of Brazil and Bolivia. The other two species, A. hilarianum (Presl) comb. nov. and A. interruptum (DC.) comb. nov., are found in Mexico, Central America, and Colombia.


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