On the Structure of the Spiracles of a Tick—Haemaphysalis punctata, Canesteini and Fanzago

Parasitology ◽  
1908 ◽  
Vol 1 (4) ◽  
pp. 347-351 ◽  
Author(s):  
G. H. F. Nuttall ◽  
W. F. Cooper ◽  
L. E. Robinson

The detailed structure of the spiracles in the Ixodoidea has hitherto received little or no attention at the hands of zoologists; at the same time, these organs are sufficiently extraordinary to make it a matter of surprise that, so far as our knowledge of the literature goes, not one of the numerous contributors to the subject of tick anatomy has found it worth while to undertake a complete description or to publish figures to illustrate it. Batelli (1891) gives a short account of the structure of the spiracle of a tick, presumably Ixodes ricinus, with a single figure, but with this exception we have been unable to find any further information on the subject.

1877 ◽  
Vol 167 ◽  
pp. 117-135 ◽  

In a paper treating mainly on the structure of the Heliopora cœrulea , which was communicated to the Royal Society in the autumn of last year (1875), I gave a short account of the results at which I had arrived from the examination of two species of Millepora obtained at Bermuda and at the Philippines, and expressed my intention of further prosecuting the subject at the Sandwich Islands and Tahiti, should material be forthcoming. At Honolulu no Millepora was met with; and this form apparently does not occur at the Sandwich Islands, the water being too cold for it. At Tahiti a Millepora is very abundant on the reefs in from one to two feet of water, and is very conspicuous because of its bright yellow colour.


1896 ◽  
Vol 42 (176) ◽  
pp. 17-26 ◽  
Author(s):  
Ernest Septimus Reynolds

That it would be impossible for anyone in a single paper to adequately treat of the mental symptoms occurring in bodily diseases is self-evident. For it must be remembered, as Maudsley says, “that it is impossible to be out of sorts physically without being out of sorts mentally,” so that the subject includes not only the slight emotional changes found in various diseases, but also the actual insanities produced by or accompanying them. All that I propose to do in this communication is to give a short account of the mental changes which I have noticed during a four years' residence in the Manchester Royal Infirmary, and during a longer experience as visiting physician to the Manchester Workhouse Infirmary, where I have charge of over 800 medical beds.


2017 ◽  
Vol 73 (11) ◽  
pp. 698-701 ◽  
Author(s):  
Mirosław M. Michalski

Ticks parasitizing on dogs belong to mites of the order Ixodida, class Arachnida. In Poland the occurrence of four species has been recorded most frequently: Ixodes ricinus, I. hexagonus, I. crenulatus and Dermacentor reticulatus. Their importance is due to the fact that they are vectors of many dangerous diseases of humans and animals. The subject of the present study were ticks collected from dogs, patients of several veterinary clinics from the urban agglomeration of the city of Olsztyn. Ticks were collected from May to June in eight consecutive years: 2009–2016. The dominant species was I. ricinus (60.14%) in relation to D. reticulatus (39.71%). In two consecutive years, 2011–2012, single females of Rhipicephalus sanguineus were also identified, an exceptional finding of this species in our country. In D. reticulatus, nymphs predominated over females (23.74% vs 16.0%) while in I. ricinus the respective percentage was 29.6% and 30.55%. However, in subsequent years of the study the proportions between nymphs and females varied greatly in both species.


2021 ◽  
pp. 223-227
Author(s):  
Jeremy Gray

Abstract This chapter discusses the impact of climate change on the abundance and distribution of babesiosis vectors and, by implication, transmission of Babesia spp. It discusses evidence for climate change impact on the vectors Ixodes ricinus, Dermacentor reticulatus, Haemaphysalis punctata and Hyalomma spp. as well as the absence of evidence of the same climate change effects on the vectors Rhipicephalus spp. and I. scapularis.


1960 ◽  
Vol 92 (1-2) ◽  
pp. 48-58 ◽  
Author(s):  
R. Russell
Keyword(s):  

One of the major difficulties which face the English student when he comes to read Urdu poetry is that he cannot understand its metre. Even worse, he will find no short account of Urdu metre—either in English or in Urdu—which will help him very far. And finally, if he goes to Urdu speakers for assistance he will find that nearly all of them will frankly admit their ignorance of the subject and their inability to help him. Urdu poets of established reputation are, in general, no exception in this respect.


2002 ◽  
Vol 61 (3) ◽  
pp. 715-738
Author(s):  
M.A. Stein

This latest addition to the Palgrave series on Social History in Perspective is a concise and systematic overview of the Poor Law system from the beginning of the 18th century through to its demise in 1930. Well written, The English Poor Law is intended as an introduction to the subject for students of law, history, and/or society, and therefore offers a very short account. Fortunately, the knowledgeable Professor Brundage (whose earlier books include an analysis of the New Poor Law and a biography of one of its facilitators, Edwin Chadwick) provides first-rate end notes and an extensive bibliography. In consequence, those wishing to learn more of this interesting topic have been afforded the means for additional research.


1895 ◽  
Vol 37 (3) ◽  
pp. 695-706
Author(s):  
C. Hunter Stewart

The chemical examination of ground-air, i.e., the air which is contained in the pores of the soil, was first made by Boussingault and Levy in 1853. Their results, however, attracted little attention till Pettenkofer, in 1857, pointed out that the determination of the amount of carbonic acid in the air of a given soil might be used as a means of estimating the organic decomposition going on there. In 1871 he first published his results, and since that time the subject has been worked at by many investigators both from the agricultural and hygienic point of view, including in the latter class Fleck at Dresden, Eodor at Buda-Pesth, Hesse in Saxony, and Nicholls in America. As researches of this nature have not attracted much attention in this country, a short account of the modus operandi may be interesting as a preliminary.


1796 ◽  
Vol 86 ◽  
pp. 227-277 ◽  
Keyword(s):  

It has always appeared wonderful to me, since nature seems to delight in those close analogies which enable her to preserve simplicity and even uniformity in variety, that there should be no dispositions in the parts of light, with respect to inflection and reflection, analogous or similar to their different refrangibility. In order to ascertain the existence of such properties, I began a course of experiments and observations, a short account of which forms the substance of this paper. For the sake of perspicuity I shall begin with the analytical branch of the subject, comprehending my observations under two parts: flexion , or the bending of the rays in their passage by bodies, and reflection . And I shall conclude by applying the principles there established to the explanation of phænomena, in the way of synthesis. As in every experimental inquiry much depends on the at­tention paid to the minutest circumstances, in justice to myself I ought to mention, that each experiment was set down as par­ticularly as possible immediately after it was made; that they were all repeated every favourable day for nearly a year, and before various persons; and as any thing like a preconceived opinion, with respect to matter of theory that is in dispute, will, it is more than probable, influence us in the manner of drawing our conclusions, and even in the manner of recording the experiments that lead to these, I have endeavoured as much as possible to keep in view the saying of the Brahmin: “that he who obstinately adheres to any set of opinions, may “bring himself at last to believe that the fresh sandal wood is “flame of fire."


2007 ◽  
Vol 88 (5) ◽  
pp. 693-700 ◽  
Author(s):  
Vanda Grubišić ◽  
Mirko Orlić

This article delivers a short history of the early quantitative documentation of a rotor-type circulation in the bora-type flow on the northern Adriatic by Andrija Mohorovičić, an all-around geophysicist and the father of Croatian geophysical research who is widely known as the discoverer of discontinuity between the Earth's crust and mantle. This historical work presents an overview of Mohorovičić's research technique and rotor-related contributions, together with a short account of other observations of rotors contemporary to Mohorovičić as well as those from the 1920s and 1930s, considered to be seminal work on the subject on atmospheric rotors to date. In the year that marks the 150th anniversary of Mohorovičićs birth, his early meteorological observations remain germane for atmospheric rotor research, which is currently experiencing a renaissance with the Terrain-Induced Rotor Experiment (T-REX), a recently completed international field campaign and an ongoing research effort focused on atmospheric terrain-induced rotors.


Motor localisation in the Gibbon has not been hitherto determined experimentally, probably owing to the difficulty of obtaining a suitable animal. It appeared to be desirable, therefore, to see whether the habits and mode of life of this animal could be correlated with an increased development of the motor cortex. One of us (F. W. M.) had some years ago, by a comparative study of the convolutional pattern of the brains of Lemurs and Apes, made the following deduction: “The remarkable use this animal makes of its arms and hands can be correlated with a remarkable expansion of the cortex in the precentral region, as shown by the development of a broad gyrus extending from the middle of the precentral region to form the second frontal convolution. Now if we turn to the Ape’s brain (Maeacus), and see what the effect of this development would be, we observe that it would push forwards and downwards that portion of the cortex which on stimulation gives rise to movement of the head and eyes, particularly that which gives rise to eye movements, etc.” Figures were shown to indicate that the sulcus arcuatus would be pushed down to join the sulcus rectus. The following experiments by stimulation, correlated with a complete histological examination of the cortex in front of the central sulcus, have confirmed this deduction. The animal used for the experiments was a male and black in colour; it was remarkably agile; when standing or running on the ground it maintained almost an erect posture, using its long arms to balance itself very much as a man would walk on a tight rope with a- balancing-pole. It was kept for some days before the experiment in the animal room of the Physiological Laboratory, Liverpool, and it was frequently heard to utter vocal sounds of very varying pitch and quality. Thus it could imitate the shrill high-pitched whistles of the guinea-pig and the relatively low-pitched bark of the dog. A short account of the larynx of this animal will be made the subject of a future publication.


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