Search results for " economy."
showing 10 items of 1490 documents
Evolution of electromyographic signal, running economy, and perceived exertion during different prolonged exercises
2000
International audience; The purpose of this study was to compare the electromyographic (EMG) signal of the vastus lateralis muscle obtained during a run section of a triathlon and at the end of a prolonged run performed at the same running velocity. Seven subjects were studied on three occasions: a 2 h 15 min triathlon (30 min swimming, 60 min cycling, and 45 min treadmill running at 75% of the maximal aerobic speed), a 2 h 15 min run, where the last 45 min (Prolonged Run, PR) were run at the same speed as the Triathlon Run (TR) on a motorized treadmill, and a 45 min Isolated Run (IR) performed at the same TR and PR velocity. The three experimental trials were randomised. Oxygen uptake (VO …
Metabolic response of endurance athletes to training with added load.
1987
Endurance athletes were divided into experimental (n=12) and control (n=12) groups to investigate the effects of extra-load training on energy metabolism during exercise. A vest weighing 9%–10% body weight was worn every day from morning to evening for 4 weeks including every (n=6) or every other (n=6) training session. After 4 weeks the control group had a lower blood lactate concentration during submaximal running, whereas the experimental group had significantly higher blood lactate and oxygen uptake (p<0.01–p<0.05), and a lower 2 mmol lactate threshold (p<0.05) and an increased blood lactate concentration after a short running test to exhaustion (p<0.05). Those experimental subjects (n=…
Threshold rule and scaling behavior in a multi-agent supply chain
2010
In this paper an agent-based model of self organized criticality is developed in a network economy characterized by lead time and a threshold behavior of firms. Instead of considering the aggregate production of the economy as a whole, we focus on both the propagation and amplification effects of a demand shock in the sectorial productions of a multi-agent supply chain. We study a static network structure representing a relation of firms in a lower-upper stream in an industrial organization. In our model, the individual (R, nQ) policies play an important role in generating a propagation effect across the different layers of the economy, and the propagation turns into the large fluctuations …
AgriChain: Blockchain Syntactic and Semantic Validation for Reducing Information Asymmetry In Agri-Food
2022
Information asymmetry affects the actors of all the segments of the agri-food supply chain and can arise many problems in the market along the production chain. Transactions of agri-food products are asymmetric because suppliers and buyers have different levels of knowledge on the provenance, value, quality, and freshness of food. Collusive relations among the agri-food chain actors, especially between controllers companies and controlled ones, can cause market failures as they influence customers’ purchase decisions and severe health accidents when food safety is compromised. This paper proposes using blockchain technology to combat information asymmetry and collusive relations. In additio…
Osservazioni su contratti algoritmici e tutela del consumatore nell’economia di piattaforma
2020
Il saggio prende in esame alcune delle tutele predisposte dalla direttiva 2019/2161 del Parlamento e del Consiglio in favore del consumatore, nell’ipotesi in cui quest’ultimo sia assistito, nell’incontro con il professionista, dall’uso di tecnologie computazionali: con una espressione di sintesi, l’Autore si riferisce a questa evenienza con la locuzione “contratti algoritmici”. Tre sono gli aspetti cui si dirige l’attenzione: 1) la specificità dell’economia di piattaforma, luogo privilegiato in cui gli algoritmi orientano le scelte di consumo; 2) gli algoritmi che sono adoperati nell’atto di consumo; 3) l’ottimizzazione dei prezzi tramite profilazione automatizzata, quale caso paradigmatico…
El rol de la presencia de un área silvestre protegida en el desarrollo local. Un estudio de caso en la Región de Aysén, Patagonia chilena / / / \ \ \…
2020
Resumen: Para probar si el desarrollo de una pequeña localidad puede ser impulsado por el turismo asociado a la presencia en su cercanía de un área silvestre protegida, se estudió el caso de Villa Cerro Castillo, en la Región de Aysén, Patagonia chilena. Para ello se hizo un reconocimiento de los emprendimientos turísticos en la localidad y se caracterizó a los prestadores de servicio en el lugar. Para evaluar la evolución de la dotación de servicios turísticos, se comparó la situación del año 2019 con la del año 2006. Como resultado pudo comprobarse que la existencia de servicios turísticos se multiplicó por 1,5 en los 19 años del presente siglo, manifestando, además, una mayor calidad y v…
Toxicological and bioactivity evaluation of blackcurrant press cake, sea buckthorn leaves and bark from Scots pine and Norway spruce extracts under a…
2021
Aqueous extracts from blackcurrant press cake (BC), Norway spruce bark (NS), Scots pine bark (SP), and sea buckthorn leaves (SB) were obtained using maceration and pressurized hot water and tested for their bioactivities. Maceration provided the extraction of higher dry matter contents, including total phenolics (TPC), anthocyanins, and condensed tannins, which also impacted higher antioxidant activity. NS and SB extracts presented the highest mean values of TPC and antioxidant activity. Individually, NS extract presented high contents of proanthocyanidins, resveratrol, and some phenolic acids. In contrast, SB contained a high concentration of ellagitannins, ellagic acid, and quercetin, exp…
SUCCESSO E DECLINO DELLA SCUOLA GENOVESIANA IN SICILIA SUL FINIRE DEL XVIII E IL PRINCIPIO DEL XIX SECOLO
2021
In the Sicily of late 18th century, during the harshest contraposition between viceroyal government and parliamentary baronage, the Genovesian school gains a great success on the island among scholars and academicians as well as ruling class. In this particular moment of Sicilian history, the theme of reforms is at the top of the political agenda and the thought of Genovesi and his scholars spurs projects to reform the old institutions of the Kingdom, to modernize agriculture, raise productivity and introduce a fairer taxation. The reputation of the Neapolitan school is so well-known that all the parties are inspired by Its economic and political proposals. Furthermore, the Crown and the ba…
A testimony of pitch production in the Protohistory of the Iberian Peninsula: The kiln of La Illeta dels Banyets (El Campello, Alicante)
2022
Durante la campaña de 2009-2010 en el yacimiento arqueológico de la Illeta dels Banyets se localizó un basamento circular, una pileta y un depósito excavado en el subsuelo que formaban parte de un único equipamiento dedicado a una actividad productiva. Por sus características y por los análisis antracológico y químico se ha identificado como un horno para la destilación de pez o brea, cuyo proceso de fabricación se ha visto confirmado con paralelos arqueológicos y etnográficos. Datado entre finales del siglo IV y la primera mitad del siglo III a.C., es la primera instalación completa de este tipo conocida para el periodo protohistórico en la península ibérica. During the 2009-2010 campaign …
Public Reason and the Limits of Liberal Anti-Racism in Latvia
2011
My paper is a critical analysis of anti-racist and tolerance promotion initiatives in Latvia. First, I trace the historical and geopolitical conditions that enable the emergence of two discursive positions that are central to arguments about racism - that of liberally inclined tolerance activists and that of Latvians with politically objectionable nationalist sensibilities. Subsequently, I argue that, plagued by developmentalist thinking, anti-racist and tolerance promotion initiatives fail in their analysis of contemporary racism. They posit backward attitudes as the main hindrance to the eradication of racism and displace racism as a constitutive feature of modern political forms onto ind…