5,347 research outputs found
Positional Challenges and Advantages of a PhD Student Researching the PhD
It is fairly uncommon for a PhD student to conduct a study that looks at PhD education, and this paper discusses the challenges and advantages of my experience as a PhD student in conducting a PhD research about the PhD. This PhD research project was not an action research or self-reflective of my own educational journey. In this paper, I identify the challenges concerning my position as both a PhD student and a researcher exploring the educational processes of the PhD, and illustrate the ways I adopted to overcome these challenges. I also point out that having addressed these challenges; there are advantages due to the concurrent position of being a PhD student and a researcher that contributed to the development of new knowledge in the field of PhD education
Monitoring The Provision Of Transnational Higher Education (TNHE) Services: The Potentials For Multi-Sectoral Cooperation.
Transnational higher education (TNHE) is not a new phenomenon, though its nature and the pace of its growth are unprecedented, challenging the national systems of higher education in this region. Whilst it brings about identifiable
benefits, it also raises concerns amongst nations, particularly for the importing countries that are less prepared to meet these challenges
Islamic republic of Iran
The Islamic Republic of Iran is an important and interesting case study to understand in the context of higher education development in the MENA region. The Iranian higher education system can be considered as among the most developed in the region, especially in research and development, despite economic sanctions. With the lifting of the sanctions and having possessed rich economic resources as well as coupled by a relatively stable political situation, these have brighten the prospects for the development of the Iranian higher education. This chapter examines the challenges and prospects of higher education in Iran as well as from the politico-security, economic, social, legal, and educational perspectives as a means to develop holistic insights of higher education in a post-sanction Iran and the MENA region
State of Palestine
Despite being in a constant state of conflict and the manifold dangers posed by the Israeli occupation, the State of Palestine has a functional education system, which includes higher education. In fact, the higher education development in Palestine has progressed at a rapid pace over the last three decades, as it continues to succeed against the odds unbowed. This chapter examines the political, security and economic situation of Palestine, to provide a context to understanding the environment that shapes the Palestinian higher education landscape and system. This is followed by a scrutiny of the higher education sector, which includes an assessment of the set of conditions and challenges that are uniquely faced by the stakeholders of higher education in Palestine, and the potentials for future development and realisation of this highly passionate agenda of the Palestinian people
Very Low Mass Stellar and Substellar Companions to Solar-Like Stars From MARVELS V: A Low Eccentricity Brown Dwarf from the Driest Part of the Desert, MARVELS-6b
We describe the discovery of a likely brown dwarf (BD) companion with a
minimum mass of 31.7 +/- 2.0 M_Jup to GSC 03546-01452 from the MARVELS radial
velocity survey, which we designate as MARVELS-6b. For reasonable priors, our
analysis gives a probability of 72% that MARVELS-6b has a mass below the
hydrogen-burning limit of 0.072 M_Sun, and thus it is a high-confidence BD
companion. It has a moderately long orbital period of 47.8929 +0.0063/-0.0062
days with a low eccentricty of 0.1442 +0.0078/-0.0073, and a semi-amplitude of
1644 +12/-13 m/s. Moderate resolution spectroscopy of the host star has
determined the following parameters: T_eff = 5598 +/- 63, log g = 4.44 +/-
0.17, and [Fe/H] = +0.40 +/- 0.09. Based upon these measurements, GSC
03546-01452 has a probable mass and radius of M_star = 1.11 +/- 0.11 M_Sun and
R_star = 1.06 +/- 0.23 R_Sun with an age consistent with less than ~6 Gyr at a
distance of 219 +/- 21 pc from the Sun. Although MARVELS-6b is not observed to
transit, we cannot definitively rule out a transiting configuration based on
our observations. There is a visual companion detected with Lucky Imaging at
7.7 arcsec from the host star, but our analysis shows that it is not bound to
this system. The minimum mass of MARVELS-6b exists at the minimum of the mass
functions for both stars and planets, making this a rare object even compared
to other BDs.Comment: 15 pages, 15 figures, 5 tables. Accepted for publication in The
Astronomical Journa
Very Low-Mass Stellar and Substellar Companions to Solar-Like Stars from MARVELS I: A Low Mass Ratio Stellar Companion to TYC 4110-01037-1 in a 79-day Orbit
TYC 4110-01037-1 has a low-mass stellar companion, whose small mass ratio and
short orbital period are atypical amongst solar-like (Teff ~< 6000 K) binary
systems. Our analysis of TYC 4110-01037-1 reveals it to be a moderately aged
(~<5 Gyr) solar-like star having a mass of 1.07 +/- 0.08 MSun and radius of
0.99 +/- 0.18 RSun. We analyze 32 radial velocity measurements from the
SDSS-III MARVELS survey as well as 6 supporting radial velocity measurements
from the SARG spectrograph on the 3.6m TNG telescope obtained over a period of
~2 years. The best Keplerian orbital fit parameters were found to have a period
of 78.994 +/- 0.012 days, an eccentricity of 0.1095 +/- 0.0023, and a
semi-amplitude of 4199 +/- 11 m/s. We determine the minimum companion mass (if
sin i = 1) to be 97.7 +/- 5.8 MJup. The system's companion to host star mass
ratio, >0.087 +/- 0.003, places it at the lowest end of observed values for
short period stellar companions to solar-like (Teff ~< 6000 K) stars. One
possible way to create such a system would be if a triple-component stellar
multiple broke up into a short period, low q binary during the cluster
dispersal phase of its lifetime. A candidate tertiary body has been identified
in the system via single-epoch, high contrast imagery. If this object is
confirmed to be co-moving, we estimate it would be a dM4 star. We present these
results in the context of our larger-scale effort to constrain the statistics
of low mass stellar and brown dwarf companions to FGK-type stars via the
MARVELS survey.Comment: 22 pages; accepted in A
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