37,200 research outputs found
Indigenous female entrepeneurship: a qualitative studies in the context of Bolivia
Indigenous entrepreneurship and the gender approach to entrepreneurship are areas that have grown in
interest in the entrepreneurship literature in recent years. This paper combines both research streams
with the aim of analysing the social and individual factors affecting indigenous quechua female
entrepreneurs of Bolivia. Based on the analysis of qualitative data from forty-two face-to-face
interviews to indigenous entreprenerurs (female and male), the specific characteristics of these
entrepreneurs, the barriers and the facilitators of entrepreneurial activities by women, as well as the
role of social capital were extracted. The existence of a sexist and patriarchal culture has been found.
However, regarding production, family becomes the production unit; the woman and the man have
specific and complementary roles. In addition, there is growing individualism that results in a loss of
indigenous values
Acceleration of an unpolarized proton along a uniform magnetic field: Casimir momentum of leptons
Producción CientÃficaIt has been recently shown that a chiral molecule accelerates linearly along a
spatially uniform magnetic field, as a result of the parity-time symmetry breaking induced
in its QED self-interaction. In this work we extend that result to fundamental particles
which present EW self-interaction, in which case parity is violated by the EW interaction
itself. In particular, we demonstrate that, in a spatially uniform and adiabatically timevarying magnetic field, an unpolarized proton coupled to the leptonic vacuum acquires
a kinetic momentum antiparallel to the magnetic field, whereas virtual leptons gain an
equivalent Casimir momentum in the opposite direction. That momentum is proportional
to the magnetic field and to the square of Fermi’s constant. We prove that the kinetic
energy of the proton is a magnetic energy which constitutes a Doppler-shift correction to
its EW self-energy
Novel Ruthenium-Silver PTA-Based Polymers and Their Behavior in Water
New coordination polymers based on two metal-containing moieties Ru–Ag are synthesized: Na[RuCpX(PTA)-μ-(PTA)-1κP:2κ2N-AgX2]∞ (X = Cl (1), Br (2), I (3)). Characterization is performed by NMR, UV-visible and FT-IR spectroscopy, optical-electron microscopy, and elemental analyses (C, H, N, S). Light scattering is employed to characterize the colloidal particles growth by polymer self-assembling. These structures are stable over a broad range of pH and exhibit thermally-driven swelling, thus resembling a typical thermosensitive hydrogel
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