Search results for "Star"
showing 10 items of 4285 documents
The onset of metamorphosis in Tenebrio molitor larvae (Insecta, Coleoptera) under grouped, isolated and starved conditions
1991
Abstract The post-embryonic development of the beetle Tenebrio molitor presents a variable number of larval instars. Several parameters (instar length, time of apolysis and cuticle deposition) were compared during the larval-larval and larval-pupal cycles of mealworms over 50 mg, reared in grouped or isolated conditions. In grouped conditions comparable to mass breeding, larval-larval and larval-pupal apolyses were found to occur at the same time, but instar duration was longer in the case of prepupae. However, isolation was found to accelerate larval-pupal (but not larval-larval) apolyses and to reduce the number of larval instars, whereas starvation inhibited larval-larval (but not larval…
Evolution of ecdysteroids and of their apolar conjugates during the post-embryonic development of the tickOrnithodoros moubata
1997
The ecdysteroid (ES) content of the soft tick Ornithodoros moubata was investigated during the five successive nymphal molting cycles by means of an enzyme immunoassay (EIA). Samples were submitted to esterase hydrolysis in order to release free ecdysteroids from the acyl-ester conjugates (AP = apolar products). Crude and hydrolysed extracts were then analyzed by EIA using two different antibodies, a monoclonal raised against 20-hydroxyecdysone (20E) and a polychlonal raised against ecdysone (E). With the crude extracts, each molting cycle was associated with an ES peak, occurring in the middle of the instar. 20E was preponderant during the first 2 nymph cycles, but the proportion of E and …
Wydatki gmin na usługi opiekuńcze a zmiany demograficzne w Polsce
2020
Local governments as the smallest units of territorial self‑government in Poland are responsible for providing care services. The growing number of the elderly can influence the expenditures level connected with ensuring proper care for them, and it may constitute a growing problem for local government, especially for districts with a lower level of socio‑economic development. In recent years, a quite high increase in benefits amount due to care services and specialist care services has been observed. Therefore, a question arises whether a significant dependence can be observed between the share of the elderly in the population and the degree of local governments’ financial burden due to pr…
A quantitative-based model to assess seed accelerators’ performance
2021
Seed accelerators are a new generation of business incubators. While the number of seed accelerators worldwide has grown exponentially, there is as yet no consensus on how to measure and analyse th...
Knowledge assets for internationalization strategy proposal
2021
[EN] Lack of trust, lack of references and the confidential nature of cybersecurity projects make internationalization in companies from the cybersecurity sector a great challenge. The development of lean methodologies over recent years has presented a method to reduce time and effort, measure performance in each step and pivot when it is necessary to apply a process to a different field. Considering that internationalization resembles entrepreneurship, because of uncertainty and risk in a new market where the value proposition should be validated, the Lean Start-up philosophy will serve as a theoretical framework in which to operate. The study of international challenges of cybersecurity c…
Success factors and barriers facing the innovative start-ups and their influence upon performance over time
2004
Based upon a sample of 18 start-up innovative firms, all of them located in the Bay Area of San Francisco, this study is intended to shed some light on the strengths, opportunities, weaknesses and threats usually common to the innovative start-up firms, gathered into five areas: funding, management, focus, personal profile and goals and growth strategy. Managerial and organisational hurdles prevail during the first stages of development, whereas most strengths fall into the funding, focus and personal profile categories. An update of the 18 firms under study in year 2002 certifies the innovation start-ups usually manage grow faster than the conventional SMEs.
Image is everything! Professional football players’ visibility and wages: evidence from the Italian Serie A
2021
Sport is one of the most popular forms of entertainment and its worldwide spread has turned athletes into icons who have economic impact and international visibility as global brands. In our paper we would like to show how marketing strategies in the sports industry, amplified by social networks, have put the athlete at the centre of media attention In the world of football, football players have come to play a key role, since their image is the face of their clubs, and this can affect the number of digital fans, that is, fans who are not bound to a club by constant passion but who can change team depending on the athletes that have been lined up. This could explain why the teams playing in…
Cooperation and Status in Organizations
2010
We report the results of experiments designed to test the effect of social status on contributions to a public good, with and without punishment. The experiments are conducted in four-person groups in a “star” network, where one central player observes and is observed by the others. This imposes a social structure on the game, and gives the central player a leadership role in the group, simply by virtue of being commonly observed. We further manipulate status by allocating the central position to the person who earns the highest, or the lowest, score on a trivia quiz. These high-status and low-status treatments are compared, and we find that the effect of organizational structure—the existe…
Putting time into space: the temporal coherence of spatial applications in the housing market
2016
International audience; Relationships between past events, future expectations and present decisions, typically examined through a temporal prism within applied economics, have been lately moving to the spatial dimension through spatial econometrics. However, violations of the “arrow of time”, and thus causality, have been identified in spatial econometric techniques applied to spatio-temporal data consisting of observations each at a specific location and distinct moment in time. A comprehensive review classifies for the first time several redresses to this issue in a currently fragmented literature. This paper puts back the temporal dimension into spatial Hedonic Pricing models through a …
"Meidän vanhojen vanhuus on tämän ajan rikkautta" : vastarintaiset vanhuuskuvat ja myöhäinen tyyli Eeva Kilven teoksen Kuolinsiivous sisäisessä ja ul…
2015
Tutkielman tavoitteena on tutkia, kuinka Eeva Kilven teos Kuolinsiivous osallistuu julkiseen keskusteluun vanhuudesta ja millaista vanhuuskuvaa se rakentaa, sekä Eeva Kilven myöhäistä tyyliä eli hänen ikänsä ja lähestyvän kuolemansa vaikutusta teokseen. Kysymykseen Kuolinsiivouksen vanhuuskuvasta liittyy oletus teoksen asettumisesta vastarintaan medialle tyypillisiä vanhuuden kurjuutta ja koomisuutta korostavia puhe- ja kuvaamistapoja vastaan. Sekä vastarintaisuuden oletus, että kuoleman voimakas läsnäolo teoksessa ja teoksen sirpaleinen rakenne synnyttävät oletuksen myös teoksesta myöhäisen tyylin (late style) edustajana. Keskeisiksi teorioiksi valikoituvat kulttuuriteoria (Fornäs 1998) ja…