Iron Age Britain retraced

Antiquity ◽  
1974 ◽  
Vol 48 (192) ◽  
pp. 288-292
Author(s):  
T. G. E. Powell

At first glance it may seem an extravagance that two substantial books on the British Iron Age should make their appearance at virtually the same moment. On the contrary, except for the expense, this is a very fortunate accident that will oblige real enquirers in this field to formulate in a more determined manner than heretofore their own opinions, and working hypotheses. There is no question of abandoning one author for the other on all points: both must be read, and full weight given to the diversity of material evidence presented, and to the interpretations offered. This all contributes to a great stimulation of interest, of opportunity to clarify issues, and to see what next most needs to be done.

Author(s):  
Katherine Gruel ◽  
Colin Haselgrove

One of Barry Cunliffe’s abiding research interests has been in the character of cross-Channel interaction during the Iron Age, a topic that he has pursued and illuminated through a sustained programme of excavations and artefact studies in southern England, northern France, and the Channel Islands. Although the exchanges were undoubtedly two-way—and must also be seen in the context of a longer-term pattern of maritime contacts between Britain and its neighbours across the ocean (cf. Cunliffe 2001)— it remains true that for the late Iron Age, much of the material evidence for relations between Britain and France is in the form of continental imports found in Britain (e.g. Cunliffe 1987), rather than the other way around. We are therefore very pleased here, following a new find of British Iron Age coins in France, to be able to offer Barry a study of a relatively rare example of a group of objects moving in the opposite direction, not least because another of Barry’s contributions over the years has been to ensure that the Celtic Coin Index in Oxford has continued to develop into the unparalleled research tool for Iron Age studies that it represents today. The British exports in question are four Flat-Linear potin coins found in a mid-first-century BC context in ongoing excavations at the hilltop oppidum of Corent, in the Auvergne region of central France, over 600km from their home territory in southeast England (figure 14.1). Coins belonging to this series have been previously recorded from northern France, where there have also been a number of new finds in recent years, but never south of the Loire. We will begin by describing these new discoveries in more detail, starting with Corent, before going on to assess their implications for our understanding of the late Iron Age in southeastern England, which are considerable. In conclusion, we will offer some possible explanations as to why these coins may have been exported to France in the first century BC.


1974 ◽  
Vol 77 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Gustav Wägar

ABSTRACT Whether the short-term regulation of thyroidal protein synthesis by TSH occurs at the transcriptional or the translational level was tested by measuring the effect of actinomycin D (act D) on the TSH-induced stimulation of L-14C-leucine incorporation into the thyroidal proteins of rats. TSH was injected 6 h before the rats were killed. The thyroid glands were then removed and incubated in vitro in the presence of L-14C-leucine for 2 h. The pronounced stimulation of leucine incorporation in the TSH-treated animals was depressed as compared with controls but still significant even when the animals had been pre-treated with 100 μg act D 24 and 7 h before sacrifice. On the other hand, act D strongly decreased incorporation of 3H-uridine into RNA. Short-term regulation of thyroidal protein synthesis by TSH appears to be partly but not wholly dependent on neosynthesis of RNA. Hence regulation may partly occur at the translation level of protein synthesis.


1993 ◽  
Vol 289 (1) ◽  
pp. 117-124 ◽  
Author(s):  
S Roche ◽  
J P Bali ◽  
R Magous

The mechanism whereby gastrin-type receptor and muscarinic M3-type receptor regulate free intracellular Ca2+ concentration ([Ca2+]i) was studied in rabbit gastric parietal cells stimulated by either gastrin or carbachol. Both agonists induced a biphasic [Ca2+]i response: a transient [Ca2+]i rise, followed by a sustained steady state depending on extracellular Ca2+. Gastrin and carbachol also caused a rapid and transient increase in Mn2+ influx (a tracer for bivalent-cation entry). Pre-stimulation of cells with one agonist drastically decreased both [Ca2+]i increase and Mn2+ influx induced by the other. Neither diltiazem nor pertussistoxin treatment had any effect on agonist-stimulated Mn2+ entry. Thapsigargin, a Ca(2+)-pump inhibitor, induced a biphasic [Ca2+]i increase, and enhanced the rate of Mn2+ entry. Preincubation of cells with thapsigargin inhibits the [Ca2+]i increase as well as Mn2+ entry stimulated by gastrin or by carbachol. Thapsigargin induced a weak but significant increase in Ins(1,4,5)P3 content, but this agent had no effect on the agonist-evoked Ins(1,4,5)P3 response. In permeabilized parietal cells, Ins(1,4,5)P3 and caffeine caused an immediate Ca2+ release from intracellular pools, followed by a reloading of Ca2+ pools which can be prevented in the presence of thapsigargin. We conclude that (i) gastrin and carbachol mobilize common Ca2+ intracellular stores, (ii) Ca2+ permeability secondary to receptor activation involves neither a voltage-sensitive Ca2+ channel nor a GTP-binding protein from the G1 family, and (iii) agonists regulate common Ca2+ channels in depleting intracellular Ca2+ stores.


1922 ◽  
Vol 26 (140) ◽  
pp. 325-330
Author(s):  
S. Heckstall Smith

If the thought of another war troubles you, then don't read this article. If you would rather say to yourself as the Secretary of State said to the Air Conference, “ There won't be another war for ten years, so why worry? ” then no doubt you will think with him that it is better to let other nations have alk the bother and expense of trying to advance; after all, we are jolly fine fellows and can soon pick up. If, on the other hand, you have imagination which gives you a nasty queasy sensation when you think of what might be, then perhaps the following notes, albeit disjointed and mostly stale, may at least conjure up in you thoughts of your own on the subject. This is all that is needed to help, our advancement in the air–the stimulation of spoken and written thoughts by the British nation, for if every taxpayer in the British Empire says “ Air Force,” then the Press and Parliament will say it too.


Neurosurgery ◽  
1991 ◽  
Vol 28 (2) ◽  
pp. 223-230 ◽  
Author(s):  
Fumio Shima ◽  
Takato Morioka ◽  
Shozo Tobimatsu ◽  
Omiros Kavaklis ◽  
Motohiro Kato ◽  
...  

Abstract To improve the localization of stereotactic targets, somatosensory evoked potentials (SEPs) were recorded from the thalamus and subthalamic area using a specially designed semimicroelectrode in 61 patients and a conventional “macroclectrode” in 17 patients. By means of the semimicroelectrode, median nerve stimulation evoked two distinct SEPs, consisting of a diphasic wave with a huge positivity restricted to the nucleus ventrocaudalis (Vc) and a triphasic wave of lower amplitude with a major negativity in the ventral part of the nucleus ventrointermedius (Vim) and nucleus ventrooralis posterior (Vop) as well as the subthalamic lemniscal pathway. The Vim-Vc junction could thus be clearly delineated by an abrupt transition of SEPs from one type to the other with a precision of 1 mm. The parvicellular part of the Vc (Vcpc). situated in its basal region, was distinguishable from the Vc proper by a significant reduction of the positivity elicited by stimulation of the median nerve and by a rapid growth of a diphasic SEPs to stimulation of the posterior tibial nerve. In the other thalamic nuclei, stimulation of the median nerve elicited triphasic SEPs of a very small amplitude, suggesting a volume conduction current from the lemniscal pathway. With the macroclectrode, the positivity in the Vc was sensitive to electrode manipulation and the thalamic nuclei could not be distinctly outlined. SEP monitoring using the semimicroelectrode significantly improved the precision of target localization, which allowed minimizing of the volume of the therapeutic lesion without losing surgical effectiveness, while avoiding complications associated with increased penetration of the coagulating electrode. It is suggested that recording serial thalamic SEPs with the semimicroelectrode is a practical method to refine stereotactic targets in the thalamus.


It was shown in an earlier paper (7) that if maximal stimulation of either of two different afferent nerves can reflexly excite fractions of a given flexor muscle, there are generally, within the aggregate of neurones which innervate that muscle, motoneurones which can be caused to discharge by either afferent (i. e., motoneurones common to both fractions). The relationship which two such afferents bear to a common motoneurone was shown, by the isometric method of recording contraction, to be such that the activation of one afferent, at a speed sufficient to cause a maximal motor tetanus when trans­mitted to the muscle fibres, caused exclusion of any added mechanical effect when the other afferent was excited concurrently. This default in mechanical effect was called “occlusion.” Occlusion may conceivably be due to total exclusion of the effect of one afferent pathway on the common motoneurone by the activity of the other; but facilitation of the effect of one path by the activation of the other when the stimuli were minimal suggests that, in some circumstances at least, the effect of each could augment and summate with th at of the other at the place of convergence of two afferent pathways. Further investigation, using the action currents of the muscle as indication of the nerve impulses discharged by the motoneurone units, has now given some information regarding the effect of impulses arriving at the locus of convergence by one afferent path when the unit common to both is already discharging in response to impulses arriving by the other afferent path. Our method has been to excite both afferent nerves in overlapping sequence by series of break shocks at a rapid rate and to examine the action currents of the resulting reflex for evidence of the appearance of the rhythm of the second series in the discharge caused by the first when the two series are both reaching the motoneurone.


1970 ◽  
Vol 52 (1) ◽  
pp. 167-175
Author(s):  
P. J. MILL

1. Rhythmic bursts of motor activity associated with the expiratory phase of ventilation have been recorded from the second lateral segmental nerves of posterior abdominal ganglia in Aeshna and Anax larvae. 2. In Aeshna the rhythmic expiratory bursts contain one, or sometimes two, motor units; whereas in Anax there are almost invariably three units. In both animals only one unit is associated with action potentials in the respiratory dorso-ventral muscle. 3. Motor activity synchronized with the expiratory bursts in the second nerves has been recorded from the other lateral nerves and from the last unpaired nerve. In addition the fifth lateral nerves carry inspiratory bursts. 4. It has been confirmed that stimulation of a first segmental nerve can re-set the ventilatory rhythm by initiating an expiratory burst in the second nerves. The original frequency is immediately resumed on cessation of stimulation. 5. The nature of the ventilatory control system in dragonfly larvae is discussed in relation to other rhythmic systems in the arthropods.


1981 ◽  
Vol 101 ◽  
pp. 78-86 ◽  
Author(s):  
Harold B. Mattingly

The American excavators in the south-west area of the Forum at Corinth have revealed an intriguing architectural complex, which they have called the ‘Punic Amphora Building’. Evidently it housed a thriving import business with a speciality in fish and wine, whose trade extended in one direction to Sicily and perhaps Spain and in the other to Chalkidike and Chios. Masses of fragments of Punic and Chian amphoras were found crushed and pounded in the make-up of successive floor-levels in the courtyard, together with numerous pieces from Mende and elsewhere. Many others emerged from the single floors of most of the rooms or were discovered in the littered debris from the final phase of occupation. The life of this business house was somewhat short, but a domestic building on the same site had earlier been partly devoted to the same trade. All this activity ceased with dramatic suddenness; the emporium went out of use and in the late fifth century it was overlaid in one area by a new road. The end seems to be securely dated c. 430 B.C. by Attic black-glaze pottery in the final floor-level or in the debris covering the last floor. Professor Williams plausibly links the collapse of business with the interruption of Corinth's trade caused by the outbreak of the Peloponnesian War: one of Athens' first war measures was to blockade both the Saronic and the Corinthian Gulfs. This new material evidence for Corinthian commerce is most welcome in itself and, as I hope to show in this paper, it may help clarify other problems.


Balcanica ◽  
2004 ◽  
pp. 7-22 ◽  
Author(s):  
Nikola Tasic

The paper offers a historical survey of the development of Early Iron Age cultures in Danubian Serbia, its characteristics, relations with contemporary cultures of the Pannonian Plain, the Balkans, Carpathian Romania (Transylvania) and the Romanian Banat. It describes the genesis of individual cultures, their styles, typological features and interrelationships. Danubian Serbia is seen as a contact zone reflecting influences of the Central European Urnenfelder culture on the one hand, and those of the Gornea-Kalakaca and the Bosut-Basarabi complex on the other. The latter?s penetration into the central Balkans south of the Sava and Danube rivers has been registered in the Morava valley, eastern Serbia north-western Bulgaria and as far south as northern Macedonia. The terminal Early Iron Age is marked by the occurrence of Scythian finds in the southern Banat, Backa or around the confluence of the Sava and the Danube (e.g. Ritopek), and by representative finds of the Srem group in Srem and around the confluence of the Tisa and Danube rivers. The powerful penetration of Celtic tribes from Central Europe into the southern Pannonian Plain marked the end of the Early Iron Age.


2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Ana Karađole ◽  
Igor Borzić

Repeated excavations of the area of the early Byzantine fort on Žirje, an island in the Šibenik archipelago, resulted in recovery of a substantial amount of movable finds, predominantly pottery. Most finds date to the period of Justinian's reconquista in the mid-6th century when the fort was used, but there are also some artifacts of earlier or later dating (Iron Age, Hellenistic and early Imperial periods; medieval and postmedieval periods) whose presence is explained by continuous strategic importance of the fort position. Late antique material has been analyzed comprehensively in terms of typology. Dating and provenance contexts of the finds have also been determined. Presence of pottery from the main production centers that supplied the eastern Adriatic at the time has been attested. This refers in particular to the north African and Aegean-eastern Mediterranean area providing fine tableware and kitchen pottery, lamps and various forms of amphorae. On the other hand, participation of local workshops in supply of the Byzantine soldiers stationed in Gradina probably relates to prevailing forms of kitchenware.


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