Rural Centres, Trade, and Non-Agrarian Production

2002 ◽  
Author(s):  
Helena Hamerow
Keyword(s):  
State Formation ◽  
Craft Production ◽  
Northern Europe ◽  
Viking Age ◽  
Rural Settlements ◽  
Long Distance ◽  
Farming Communities ◽  
Before And After ◽  
Trade And Exchange ◽  
High Level

In contrast to the relative scarcity of publications dealing with the buildings and layouts of rural settlements, many volumes have been devoted to the development of early medieval trade and craft production (e.g. Jankuhn et al. 1981; 1983; K. Düwel et al. 1987, vols. 1–4; Hodges and Whitehouse 1983). Archaeological research into these topics has been made more fruitful—as well as more complex—by the contributions of neighbouring disciplines such as history, geography, and numismatics. It has, however, tended to focus almost exclusively on towns, monasteries, and royal centres, yet craft production, trade, and exchange also played a significant role in farming communities before and after the emergence of such specialized centres. Indeed, the rural settlements of northwest Europe were already significantly differentiated in their economies in the Migration period, suggesting a high level of socio-economic complexity several centuries earlier than has generally been supposed. The evidence now available for trade and non-agrarian production, which derives almost wholly from archaeology, calls for a thoroughgoing reassessment of when and how centralized authorities emerged in northern Europe after the collapse of the western Empire. This is particularly true for northern Germany and southern Scandinavia, where early state formation has conventionally been dated to the late Viking period. Research into state formation has in the past focused on the origins of towns and market centres, the latter usually seen as arising from participation in long-distance trade which was controlled by kings or magnates. Yet, several centuries before there were kings or towns in northern Europe, rural settlements emerged which point to a degree of political centralization. This chapter considers the evidence for these rural centres and the role of non-agrarian production and exchange in rural settlements generally: what was the scale and context of the production, distribution, and consumption of non-agrarian goods? Who controlled these activities, and how, if at all, did the long-distance trade networks which fuelled the nascent towns of Merovingian and Viking Age Europe affect the economies of the communities which lay in their hinterlands?

North European Rock Art

2017 ◽  
Author(s):  
Joakim Goldhahn
Keyword(s):  
Bronze Age ◽  
Iron Age ◽  
Rock Art ◽  
Northern Europe ◽  
Long Distance ◽  
Migration Period ◽  
Farming Communities ◽  
And Migration ◽  
The Bronze Age

This chapter offers a long-term perspective on rock art in northern Europe. It first provides an overview of research on the rock art traditions of northern Europe before discussing the societies and cultures that created such traditions. It then considers examples of rock art made by hunter-gatherer societies in northern Europe, focusing on the first rock art boom related to Neolithization. It also examines the second rock art boom, which was associated with social and religious changes within farming communities that took place around 1600–1400 bc. The chapter concludes by analysing the breakdown of long-distance networks in the transition from the Bronze Age to the Iron Age and its consequences for the making of rock art within the southern traditions, as well as the use of rock art sites during the Pre-Roman Iron Age, Roman Iron Age, and Migration Period.

Hormonal and Neuromuscular Responses to High-Level Middle- and Long-Distance Competition

2014 ◽  
Vol 9 (5) ◽  
pp. 839-844 ◽  
Author(s):  
Carlos Balsalobre-Fernández ◽  
Carlos Ma Tejero-González ◽  
Juan del Campo-Vecino
Keyword(s):  
Perceived Exertion ◽  
Baseline Period ◽  
Rating Of Perceived Exertion ◽  
Distance Runners ◽  
Long Distance ◽  
Free Cortisol ◽  
Before And After ◽  
Neuromuscular Responses ◽  
Cortisol Levels ◽  
High Level

Purpose:The purpose of this study was to analyze the effects of high-level competition on salivary free cortisol, countermovement jump (CMJ), and rating of perceived exertion (RPE) and the relationships between these fatigue indicators in a group of elite middle- and long-distance runners.Method:The salivary free cortisol levels and CMJ height of 10 high-level middle- and long-distance runners (7 men, 3 women; age 27.6 ± 5.1y) competing in 800-m, 1500-m, 3000-m, or 5000-m events in the 2013 Spanish National Championships were measured throughout a 4-wk baseline period, then again before and after their respective races on the day of the competition. Athletes’ RPE was also measured after their races.Results:Cortisol increased significantly after the race compared with the value measured 90 min before the race (+98.3%, g = 0.82, P < .05), while CMJ height decreased significantly after the race (–3.9%, g = 0.34, P < .05). The decrease in CMJ height after the race correlates significantly with the postcompetition cortisol increase (r = .782, P < .05) and the RPE assessment (r = .762, P < .01).Conclusions:Observed differences in CMJ height correlate significantly with salivary free cortisol levels and RPE of middle- and long-distance runners. These results show the suitability of the CMJ for monitoring multifactorial competition responses in high-level middle- and long-distance runners.

The Effect of Time of Day on Cold Water Ingestion by High-Level Swimmers in a Tropical Climate

2013 ◽  
Vol 8 (4) ◽  
pp. 442-451 ◽  
Author(s):  
Olivier Hue ◽  
Roland Monjo ◽  
Marc Lazzaro ◽  
Michelle Baillot ◽  
Philippe Hellard ◽  
...  
Keyword(s):  
Cold Water ◽  
Thermal Sensation ◽  
Training Session ◽  
Tropical Climate ◽  
Time Of Day ◽  
Long Distance ◽  
High Intensity Training ◽  
Water Ingestion ◽  
Before And After ◽  
High Level

The authors tested the effect of cold water ingestion during high-intensity training in the morning vs the evening on both core temperature (TC) and thermal perceptions of internationally ranked long-distance swimmers during a training period in a tropical climate. Nine internationally ranked long-distance swimmers (5 men and 4 women) performed 4 randomized training sessions (2 in the evening and 2 in the morning) with 2 randomized beverages with different temperatures for 3 consecutive days. After a standardized warm-up of 1000 m, the subjects performed a standardized training session that consisted of 10 × 100 m (start every 1′20″) at a fixed velocity. The swimmers were then followed for the next 3000 m of the training schedule. Heart rate (HR) was continuously monitored during the 10 × 100 m, whereas TC, thermal comfort, and thermal sensation (TS) were measured before and after each 1000-m session. Before and after each 1000 m, the swimmers were asked to drink 190 mL of neutral (26.5 ± 2.5°C) or cold (1.3 ± 0.3°C) water packaged in standardized bottles. Results demonstrated that cold water ingestion induced a significant effect on TC, with a pronounced decrease in the evening, resulting in significantly lower mean TC and lower mean delta TC in evening cold (EC) than in evening neutral (EN), concomitant with significantly lower TS in EC than in EN and a significant effect on exercise HR. Moreover, although TC increased significantly with time in MN, MC, and EN, TC was stabilized during exercise in EC. To conclude, we demonstrate that a cold beverage had a significant effect on TC, TS, and HR during training in high-level swimmers in a tropical climate, especially during evening training.

scholarly journals Benefit of a pharmacist-led intervention for medication management of renal transplant patients: a controlled before-and-after study

2021 ◽  
Vol 12 ◽  
pp. 204062232110052
Author(s):  
Jeremy Chambord ◽  
Lionel Couzi ◽  
Pierre Merville ◽  
Karine Moreau ◽  
Fabien Xuereb ◽  
...  
Keyword(s):  
Medication Adherence ◽  
Immunosuppressive Therapy ◽  
Medication Management ◽  
Intervention Group ◽  
Knowledge Score ◽  
Control Group ◽  
Patient Knowledge ◽  
Transplant Patients ◽  
Before And After ◽  
High Level

Aims: To assess the effect of a pharmacist-led intervention, using Barrows cards method, during the first year after renal transplantation, on patient knowledge about their treatment, medication adherence and exposure to treatment in a French cohort. Methods: We conducted a before-and-after comparative study between two groups of patients: those who benefited from a complementary pharmacist-led intervention [intervention group (IG), n = 44] versus those who did not [control group (CG), n = 48]. The pharmacist-led intervention consisted of a behavioral and educational interview at the first visit (visit 1). The intervention was assessed 4 months later at the second visit (visit 2), using the following endpoints: treatment knowledge, medication adherence [proportion of days covered (PDC) by immunosuppressive therapy] and tacrolimus exposure. Results: At visit 2, IG patients achieved a significantly higher knowledge score than CG patients (83.3% versus 72.2%, p = 0.001). We did not find any differences in treatment exposure or medication adherence; however, the intervention tended to reduce the proportion of non-adherent patients with low knowledge scores. Using the PDC by immunosuppressive therapy, we identified 10 non-adherent patients (10.9%) at visit 1 and six at visit 2. Conclusions: Our intervention showed a positive effect on patient knowledge about their treatment. However, our results did not show any improvement in overall medication adherence, which was likely to be because of the initially high level of adherence in our study population. Nevertheless, the intervention appears to have improved adherence in non-adherent patients with low knowledge scores.

scholarly journals Gender Differences in Neuromuscular, Haematological and Urinary Responses during Padel Matches

2021 ◽  
Vol 18 (11) ◽  
pp. 5864
Author(s):  
Francisco Pradas ◽  
Alejandro García-Giménez ◽  
Víctor Toro-Román ◽  
Nicolae Ochiana ◽  
Carlos Castellar
Keyword(s):  
Gender Differences ◽  
Red Blood Cells ◽  
Grip Strength ◽  
Blood Cells ◽  
Temporal Structure ◽  
Hand Grip Strength ◽  
Squat Jump ◽  
Hand Grip ◽  
Before And After ◽  
High Level

Research on the acute physiological response to a padel match is limited. The present study aimed to: (a) evaluate neuromuscular, urinary, and hematological responses after simulated padel competition (SC) and (b) analyze possible gender differences. In this study, 28 high-level padel players participated (men = 13, age = 26.83 ± 6.57 years; women = 15, age = 30.07 ± 4.36 years). The following parameters were analyzed before and after SC: neuromuscular (hand grip strength, squat jump (SJ), countermovement jump (CMJ), and Abalakov jump (ABK)), hematological (red blood cells, hemoglobin, and hematocrit), and urinary (pH, specific gravity, microalbuminuria, and red blood cells). Significant gender differences were found in neuromuscular and hematological responses, with men obtaining higher values (p < 0.05). For the SC influence, changes were noted in ABK and microalbuminuria (p < 0.05). The percentages of change in hand grip strength, SJ (height and watts), CMJ (height), and ABK (height) were higher for men than women (p < 0.05). SC negatively influenced the neuromuscular parameters to a greater extent in women. Our results could be related to gender differences in game actions, the temporal structure, and anthropometric and physiological characteristics. Game dynamics and a different organic response between male and female padel playing were confirmed.

scholarly journals Real-Time High-Level Acute Pain Detection Using a Smartphone and a Wrist-Worn Electrodermal Activity Sensor

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 3956
Author(s):  
Youngsun Kong ◽  
Hugo F. Posada-Quintero ◽  
Ki H. Chon
Keyword(s):  
Real Time ◽  
Electrodermal Activity ◽  
Smartphone Application ◽  
Real Time Processing ◽  
Pain Stimulation ◽  
Significant Difference ◽  
Before And After ◽  
Electrical Pulses ◽  
Pain Detection ◽  
High Level

The subjectiveness of pain can lead to inaccurate prescribing of pain medication, which can exacerbate drug addiction and overdose. Given that pain is often experienced in patients’ homes, there is an urgent need for ambulatory devices that can quantify pain in real-time. We implemented three time- and frequency-domain electrodermal activity (EDA) indices in our smartphone application that collects EDA signals using a wrist-worn device. We then evaluated our computational algorithms using thermal grill data from ten subjects. The thermal grill delivered a level of pain that was calibrated for each subject to be 8 out of 10 on a visual analog scale (VAS). Furthermore, we simulated the real-time processing of the smartphone application using a dataset pre-collected from another group of fifteen subjects who underwent pain stimulation using electrical pulses, which elicited a VAS pain score level 7 out of 10. All EDA features showed significant difference between painless and pain segments, termed for the 5-s segments before and after each pain stimulus. Random forest showed the highest accuracy in detecting pain, 81.5%, with 78.9% sensitivity and 84.2% specificity with leave-one-subject-out cross-validation approach. Our results show the potential of a smartphone application to provide near real-time objective pain detection.

scholarly journals Transfer and generalization of learned manipulation between unimanual and bimanual tasks

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Trevor Lee-Miller ◽  
Marco Santello ◽  
Andrew M. Gordon
Keyword(s):  
Learning Transfer ◽  
Center Of Pressure ◽  
Center Of Mass ◽  
Pressure Point ◽  
Torque Generation ◽  
Before And After ◽  
Object Center ◽  
High Level ◽  
Bimanual Grasping ◽  
Partial Learning

AbstractSuccessful object manipulation, such as preventing object roll, relies on the modulation of forces and centers of pressure (point of application of digits on each grasp surface) prior to lift onset to generate a compensatory torque. Whether or not generalization of learned manipulation can occur after adding or removing effectors is not known. We examined this by recruiting participants to perform lifts in unimanual and bimanual grasps and analyzed results before and after transfer. Our results show partial generalization of learned manipulation occurred when switching from a (1) unimanual to bimanual grasp regardless of object center of mass, and (2) bimanual to unimanual grasp when the center of mass was on the thumb side. Partial generalization was driven by the modulation of effectors’ center of pressure, in the appropriate direction but of insufficient magnitude, while load forces did not contribute to torque generation after transfer. In addition, we show that the combination of effector forces and centers of pressure in the generation of compensatory torque differ between unimanual and bimanual grasping. These findings highlight that (1) high-level representations of learned manipulation enable only partial learning transfer when adding or removing effectors, and (2) such partial generalization is mainly driven by modulation of effectors’ center of pressure.

scholarly journals Analysis of the resistance mediated by several R-factors to Tetracycline and Minocycline

1972 ◽  
Vol 20 (2) ◽  
pp. 239-252 ◽  
Author(s):  
J. M. Robertson ◽  
E. C. R. Reeve
Keyword(s):  
Tetracycline Resistance ◽  
Klebsiella Aerogenes ◽  
R Factor ◽  
Before And After ◽  
Challenge Tests ◽  
Simple Growth ◽  
High Level ◽  
K 12 ◽  
R Factors ◽  
Level Group

SUMMARYThe resistance levels conferred by the T-determinants in four R-factors to Tetracycline and Minocycline in cells ofEscherichia coliK 12, before and after induction of maximum resistance by treatment with sub-inhibitory concentrations of the drugs, are measured by simple growth-and-challenge tests. The effect of a plasmid TKwhich confers tetracycline resistance on its hostKlebsiella aerogenesis tested in the same way. The five T-determinants fall into a high-level and a low-level group for resistance, the former giving 3- to 4-fold higher resistance in both induced and uninduced cells than the latter. The T-determinants all confer much lower resistance to Minocycline (a tetracycline molecule modified at the C-6 and C-7 positions) than to Tetracycline. The main cause of this difference is that cells carrying a T-determinant exclude Minocycline much less efficiently than Tetracycline, but in addition Minocycline is less effective than Tetracycline in inducing increased resistance. These results are discussed in the light of a model put forward to explain the inducible nature of R-factor resistance to the tetracyclines.

Sign in / Sign up

Export Citation Format

Share Document