388 research outputs found
Bostonia
Founded in 1900, Bostonia magazine is Boston University's main alumni publication, which covers alumni and student life, as well as university activities, events, and programs
Employer Defamation: Reasons and Remedies for Declining References and Chilled Communications in the Workplace
Fear of liability has caused many employers to refrain from giving references or reasons for terminating employees. Inadequate protection for employers under constitutional and tort law, unrestricted punitive awards, and the lack of a declaratory relief alternative threaten free expression in the workplace. This Note proposes that such inadequacies may be remedied by applying an enhanced definition of negligence and eliminating the conditional privilege in employer defamation cases. The enhanced negligence standard would reduce employer fear of strict liability, create a uniform standard of communication for employers to follow, and insure that liability clearly was established by the higher degree of proof and independent review procedures. Replacing the conditional privilege system with the enhanced negligence standard also would benefit employees by eliminating the more stringent malice requirement and simplifying defamation law. This Note further proposes eliminating punitive damage awards and adopting declaratory relief statutes to provide an efficient, less costly method of resolving defamation disputes. Declaratory relief would resolve the inequities of a negligence standard by providing relief for employees who cannot prove the requisite fault
Cinemática de las galaxias barradas de baja masa
En este trabajo, tratamos de describir los movimientos de las galaxias
de baja masa. Aunque en un principio el trabajo estaba enfocado en
galaxias barradas, debido a la baja estadística de este tipo de sistemas
en la muestra decidimos ampliar el trabajo al estudio global de galaxias
de baja masa. Este tipo de estudio sobre la cinemática de las galaxias
ya se ha realizado muchas veces en galaxias más masivas, pero rara vez
en galaxias de baja masa. Con tal fin, trabajamos sobre cinco galaxias,
de diferentes tipos, y estudiamos sus movimientos rotacionales y no
rotacionales gracias a técnicas de análisis espectroscópico. Nuestras
conclusiones son que las galaxias de baja masa presentan un disco soportado
por una rotación similar a la de las galaxias mas masivas. Una
vez modelada dicha rotación, la distribución residual de velocidades
nos permite analizar los movimientos no circulares y ´estos presentan
dos tipos principales de patrones: patrones relacionados con efectos
a gran escala como pueden ser alabeos del disco (warps) y patrones
estocásticos relacionados a escalas locales con formación estelar.In this work, we try to describe the motions of low-mass galaxies. Although
at first the work was focused on barred galaxies, due to the low
statistics of this type of system in the sample, we decided to extend the
work to the global study of low-mass galaxies. This type of study on
the kinematics of galaxies has already been carried out many times in
more massive galaxies, but rarely in low-mass galaxies. To this end, we
work on five galaxies, of different types, and study their rotational and
non-rotational motions using spectroscopic analysis techniques. Our
conclusions are that low-mass galaxies have a disk supported by rotation
similarly to more massive galaxies. Once said rotation has been
modeled, the residual distribution of velocities allows us to analyze
non-circular movements and these present two main types of patterns:
patterns related to large-scale effects such as warps of the disk and
stochastic patterns related locally with star formation
Comparing paedophile activity in different P2P systems
Peer-to-peer (P2P) systems are widely used to exchange content over the
Internet. Knowledge on paedophile activity in such networks remains limited
while it has important social consequences. Moreover, though there are
different P2P systems in use, previous academic works on this topic focused on
one system at a time and their results are not directly comparable.
We design a methodology for comparing \kad and \edonkey, two P2P systems
among the most prominent ones and with different anonymity levels. We monitor
two \edonkey servers and the \kad network during several days and record
hundreds of thousands of keyword-based queries. We detect paedophile-related
queries with a previously validated tool and we propose, for the first time, a
large-scale comparison of paedophile activity in two different P2P systems. We
conclude that there are significantly fewer paedophile queries in \kad than in
\edonkey (approximately 0.09% \vs 0.25%).Comment: Submitte
Bostonia
Founded in 1900, Bostonia magazine is Boston University's main alumni publication, which covers alumni and student life, as well as university activities, events, and programs
Sjømonstrene langs våre strender. Undervisning for bærekraftig utvikling med fokus på marin forsøpling
Masteroppgave i profesjonsretta naturfag - Nord universitet, 201
Endocrine cells share expression of N-CAM with neurones
The reeent explosive interest in eell adhesion
molecules (CAMs) is a direet eonsequence of the
fundamental roles they are thought to play during
early embryogenesis and tissue formation [1,2].
The most weIl known of them, studied independently
under the names of N-CAM [3]
(neural-CAM), 02 protein [4] and BSP-2 [5], has
been shown to consist in brain of a family of three
glyeoproteins of Mr 180000, 140000 and 120000
[6,7] which are implicated in neurone-neurone
adhesion by a homophilie binding meehanism
[8,9]. While N-CAM was originally considered to
be limited to neurones in adult tissues, ultrastruetural
immunoeytochemical studies have sinee provided
unequivocal evidenee that glial cells, both
astrocytes [6,10] and Schwann cells [11], also express
N-CAM (see also [12,13]). Apart from a very
limited expression by skeletal muscle at the neuromuscular
junetion [14], its expression in the adult
Correspondence address: O.K. Langley, Unite 44 de
I'INSERM, and Centre de Neurochirnie du CNRS, 5 rue
Blaise Pascal, 67084 Strasbourg Cedex, France
has been largely though not exclusively considered
to be limited to nervous tissues. N-CAM has been
found in eertain eells outside the nervous system
(e.g. chromaffin eells in the adrenal medulla [11])
but such eells are derived from the neural crest.
Here we extend our previous observations on endocrine
eells in the adrenal gland and investigate
the possible expression of N-CAM by other endoerine
eells whieh have a non-neural origin. The present
results indieate a mueh wider distribution of
N-CAM in adult tissues than has previously been
supposed. N-CAM is shown by immunoeytoehemistry
to be expressed by several endoerine eells
of non-neural origin. Immunoehemieal data eonfirm
the presenee of N-CAM determinants typical
of brain in endoerine eells although the relative
proportions differ markedly. In addition, in two of
the tissues examined a lower molecular mass NCAM
positive polypeptide was also detected
Altered expression of neuronal cell adhesion molecules induced by nerve injury and repair.
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