Understanding eINVs through the lens of prior research in entrepreneurship, international business and international entrepreneurship

In this chapter we examine the growing phenomenon of internet-based international new ventures, which we label “eINVS,” through the lens of previous research in the fields of entre- preneurship, international business and international entrepreneurship. Our purpose is to iden- tify where these existing bodies of research help us to understand eINVs, and where there are gaps that constitute important questions for future research. We define an eINV by adapting a widely used definition of international new ventures (INV) (Oviatt and McDougall 2005: 5): an eINV is a venture whose business model is enabled by a digital platform and that, from incep- tion, seeks to derive significant competitive advantage from international growth. With a focus explicitly on how extant research helps us understand eINVs, this review differs from that of Reuber and Fischer (2011b), who focus on firm-level internet-related resources that are related to the internationalization of ventures in general; that of Pezderka and Sinkovics (2011), who focus on risk and the online foreign market entry decisions of small and medium-sized enter- prises (SMEs); and that of Chandra and Coviello (2010), who focus on consumers using the internet to pursue international opportunities

A Quantum Top Inside a Bose Josephson Junction

We consider an atomic quantum dot confined between two weakly-coupled Bose-Einstein condensates, where the dot serves as an additional tunneling channel. It is shown that the thus-embedded atomic quantum dot is a pseudospin subject to an external torque, and therefore equivalent to a quantum top. We demonstrate by numerical analysis of the time-dependent coupled evolution equations that this microscopic quantum top is very sensitive to any deviation from linear oscillatory behavior of the condensates. For sufficiently strong dot-condensate coupling, the atomic quantum dot can induce or modify the tunneling between the macroscopic condensates in the two wells.Comment: 4 pages of RevTex4, 4 figures; rewritten discussion and displayed new result

How does the local wind field control the aerosol distribution in coastal Dronning Maud Land?

Atmospheric circulation patterns and chemical concentrations in firn cores are highly related to each other. Atmospheric winds transport aerosols like sea salt and mineral dust over the globe and redistribute them. Because of this, it is possible to reconstruct atmospheric circulation bringing aerosol to Antarctica by analyzing chemical impurities in firn and ice. With these analyses, the gap caused by sparse atmospheric measurements can be filled and this knowledge can then be used to improve the understanding of local and global circulation patterns.Due to a very high accumulation rate (~600 kg/m²*a), coastal Dronning Maud Land (CDML) is a perfect site to conduct these studies.Here, the upper 6m of two firn cores drilled on Halvfaryggen and Sörasen (covering the time interval from 2002- 2007) were analyzed on ionic concentrations. This data was then contrasted to measurements from the air chemistry laboratories at Neumayer (NM) and Kohnenstation (KS), and synoptic measurements from automatic weather stations (distributed in CDML and at NM).The analyses show very different results: Sea salt ions (e.g. Na+) are higher correlated to ions measured in aerosol samples at the air chemistry laboratory at KS than to the one located at NM. In contrast, ions representing mineral dust (e.g. nss-Ca2+) only have a weak correlation over the whole area and time period. Accordingly, the deposition of aerosol is highly dependent on its origin and the topography in coastal Antarctica suggesting different transport pathways for sea level and higher altitude sites

Coherent single atom shuttle between two Bose-Einstein condensates

We study an atomic quantum dot representing a single hyperfine "impurity" atom which is coherently coupled to two well-separated Bose-Einstein condensates, in the limit when the coupling between the dot and the condensates dominates the inter-condensate tunneling coupling. It is demonstrated that the quantum dot by itself can induce large-amplitude Josephson-like oscillations of the particle imbalance between the condensates, which display a two-frequency behavior. For noninteracting condensates, we provide an approximate solution to the coupled nonlinear equations of motion which allows us to obtain these two frequencies analytically.Comment: 4 pages of RevTex4, 4 figures; Rapid Communication in Physical Review

Macroscopic Floquet topological crystalline steel pump

The transport of a steel sphere on top of two dimensional periodic magnetic patterns is studied experimentally. Transport of the sphere is achieved by moving an external permanent magnet on a closed loop around the two dimensional crystal. The transport is topological i.e. the steel sphere is transported by a primitive unit vector of the lattice when the external magnet loop winds around specific directions. We experimentally determine the set of directions the loops must enclose for nontrivial transport of the steel sphere into various directions

Between Nation and State: Examining the International Romani Unions

Senior Project submitted to The Division of Social Studies of Bard College

Anna and Rudi Fischer to Mr. Meredith (13 October 1962)

https://egrove.olemiss.edu/mercorr_pro/2163/thumbnail.jp

Beyond Linear Transition(s) to Justice: Intra-Urban Displacement and Transmission of Memories in Medellin, Colombia

This thesis critically interrogates experiences of violence in relation to forced intra-urban displacement and trans-generational transmission of memories in Medellin, Colombia. By situating spatio-temporal violence – slow violence in Rob Nixon’s terms – at the heart of its analysis, this study contrasts the enduring experiences of serial displacement with time-limited and linear transitions to justice. First, the study reveals the discursive, legal and political detachment of intra-urban displacement from regional displacement as enshrined in the current Colombian transitional justice framework. It demonstrates how the lived experience of violence exceeds the temporality of those transitional mechanisms. Second, this work exposes the ongoing nature of serial displacement as historical injuries in the form of inherited memories of violence. The latter mark certain places as areas of no-return and assigns territorial stigma to identities in the city. The absence of a justice framework that can respond to those experiences results in a feeling of non-belonging. The latter limits the exercise of full citizenship in Hannah Arendt’s terms. Third, the emphasis of current transitional justice debates on limited understandings of what constitutes violence, harm, and transition effectively obscures the complex repercussions of violence and the (re-) construction of justice in the everyday by displaced persons in Medellin. Ultimately, to focus on the continuity of the enduring nature of serial displacement and on the political agency of those that experienced serial displacement reveals transformative projects of systemic justice as urgent in present times

Procjena otrovnih učinaka teških metala na stanice sisavaca in vitro - pregled rezultata suradnih istraživanja

The uptake and distribution of selected heavy metals were followed and related to cytotoxicity using various parameters of proliferation and viability of cultured cells. The effects of short-term lead exposure on DNA synthesis were reversible, indicating that lead does not significantly influence genetic cellular function. In contrast, nickel effects persisted, indicating that DNA is one of the main nickel targets. Heavy metals affected all cycle phases, but those related to preparation and commencement of DNA synthesis were the most susceptible. Tolerance appeared in chronic exposure to lead and cadmium. Lead combined with X-rays had additive effect, while manganese acted synergistically and appeared to inhibit the DNA repair processes. Zinc and manganese showed a protective effect against the toxic effects of cadmium. Similar antagonistic interaction was seen for nickel v. manganese cytotoxicity. This model system makes it possible to compare heavy metal effects at the cellular level and to identify cellular targets and metabolic processes.Dan je pregled istraživanja in vitro na staničnim kulturama sisavca koja su bila provedena pojedinačno ili u suradnji laboratorija koautorica članka, Laboratorija za celularnu biologiju Instituta za medicinska istraživanja i medicinu rada u Zagrebu i suradnog laboratorija u Institutu za higijenu i zdravstvenu ekologiju Sveučilišta u Giessenu. Namjera rada bila je dati primjere kakvi se rezultati mogu dobiti primijenjenim tehnikama i metodama na staničnim kulturama. Iznijeti su samo najvažniji rezultati na području istraživanja olova, kadmija, mangana i nikla koji su dobiveni ili suradnim istraživanjem ili komplementarnim istraživanjima u oba laboratorija. Ovim su primjerima istaknuti i dobri znanstveni i osobni odnosi koje je polučila znanstvena suradnja dvaju laboratorija. U staničnim kulturama praćeno je unošenje i razdioba metala u stanicama te njihovi citotoksični učinci koji su procjenjivani na temelju različitih pokazatelja stanične proliferacije i vijabilnosti. Učinci kratkotrajne izloženosti olovu na sintezu DNK bili su reverzibilni, što pokazuje da olovo ne utječe značajno na gensku staničnu funkciju. Nasuprot tomu, učinci nikla na DNK bili su trajni, što upućuje na to da je to jedno od glavnih ciljnih djelovanja ovog metala. Ispitivanja djelovanja na stanični ciklus pokazala su da otrovni metali imaju učinke na sve stanične faze, ali da su najosjetljivije faze u kojima se priprema i počinje sinteza DNK. Pri kroničnoj izloženosti olovu ili kadmiju pojavljuje se tolerancija zbog procesa prilagodbe. Pri združenim izloženostima rendgenskim zrakama, olovo ima uvijek aditivni učinak, dok je djelovanje mangana sinergističko i čini se da inhibira procese popravka DNK. U kombiniranim pokusima cink i mangan pokazuju zaštitno djelovanje na učinke kadmija, a slično antagonističko djelovanje nikla opaža se pri citotoksičnim učincima mangana. Prikazani primjeri pokazuju da se upotrijebljeni pokusni model može primijeniti za usporedbe učinaka otrovnih metala na staničnoj razini, kao i za utvrđivanje ciljnih staničnih dijelova i metaboličkih procesa

Investigating neural mechanisms underlying division of labor in Temnothorax ants.

O patrocínio é uma forma especial de publicidade, um instrumento de promoção da “imagem empresarial” do patrocinador, isto é, de um “instrumento da política de imagem” das empresas, mediante associação de um seu sinal distintivo, maxime a marca, à fama ou celebridade de uma pessoa e/ou à notoriedade do evento patrocinados, participando na repercussão mediática do seu êxito (“transferência de imagem por associação”). Este estudo analisa implicações jurídicas do patrocínio desportivo