314 research outputs found
In Her Husband’s Family: A Newly Wed Woman’s Expectations and Her New Family’s Attitudes in Rural Assam, India
From the introduction:
Until recently, living in a joint family system was typical among Hindus and members of other religious groups in India. Living in an extended joint family was also a common practice. However, joint family groups and extended joint family living are now relatively rare, due to India’s economic and social developments over the past four decades or so. Currently, the most common family arrangement is that of the nuclear family, comprised of a father, mother and their children. In rural areas, this nuclear family unit operates within a number of more traditional expectations and arrangements, however. Within a rural Hindu family, for example, a woman’s status varies according to factors such as her age, her marital status, her relationship to different members of her family, her ability to bear children and her status as a mother. A young, newly wed woman may be treated differently by her in-laws than by her own parents; a young widow living in her husband’s family may be treated differently by her new family than she would be were her husband still alive; a daughter-in-law from a poor family may be received differently than she would be received were she from a wealthier family. Similarly, a young unmarried woman living with her natal family may face a degree of hostility from a stepmother that she would not face from her natural mother
Sensory organ like response determines the magnetism of zigzag-edged honeycomb nanoribbons
We present an analytical theory for the magnetic phase diagram for zigzag
edge terminated honeycomb nanoribbons described by a Hubbard model with an
interaction parameter U . We show that the edge magnetic moment varies as ln U
and uncover its dependence on the width W of the ribbon. The physics of this
owes its origin to the sensory organ like response of the nanoribbons,
demonstrating that considerations beyond the usual Stoner-Landau theory are
necessary to understand the magnetism of these systems. A first order magnetic
transition from an anti-parallel orientation of the moments on opposite edges
to a parallel orientation occurs upon doping with holes or electrons. The
critical doping for this transition is shown to depend inversely on the width
of the ribbon. Using variational Monte-Carlo calculations, we show that
magnetism is robust to fluctuations. Additionally, we show that the magnetic
phase diagram is generic to zigzag edge terminated nanostructures such as
nanodots. Furthermore, we perform first principles modeling to show how such
magnetic transitions can be realized in substituted graphene nanoribbons.Comment: 5 pages, 5 figure
Broad Band Optical Polarimetric Study of IC 1805
We present the BVR broad band polarimetric observations of 51 stars belonging
to the young open cluster IC 1805. Along with the photometric data from the
literature we have modeled and subtracted the foreground dust contribution from
the maximum polarization (P_{max}) and colour excess (E_{B-V}). The mean value
of the P_max for intracluster medium and the foreground are found to be 5.008
+/-0.005 % and 4.865 +/-0.022 % respectively. Moreover, the mean value of the
wavelength of maximum polarization (lambda_{max}) for intracluster medium is
0.541 +/- 0.003 micro m, which is quite similar as the general interstellar
medium (ISM). The resulting intracluster dust component is found to have
negligible polarization efficiency as compared to interstellar dust. Some of
the observed stars in IC 1805 have shown the indication of intrinsic
polarization in their measurements.Comment: 8 pages, 7 figures, Accepted for publication in MNRA
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