259 research outputs found
Out-of-Print and Antiquarian Books: Guides for Reference Librarians
Abstract: The issue of evaluating old books is one that, on a functional level, has been removed from the provenance of librarians by Internal Revenue Service regulations. But the question in public, academic, and special libraries persists as does the assumption on the part of the general public that librarians know something about old books and the antiquarian book trade. This article reviews the issues involved and discusses the sources of pricing information most useful for general libraries in the United States and Canada. Article: The technical areas of acquisitions are unfamiliar ground to most reference librarians who usually do not venture into the territory beyond directing patron inquiries about price and availability of books to local bookstores or to Books in Print. If the book in question is still available from the publisher, this response is undoubtedly sufficient for the immediate needs of the patron. When a book is out of print and no longer available from the publisher, a question of a different order is created, a question that many librarians feel illprepared to attempt to answer. The antiquarian book market is an unknown arena for most librarians and one in which there are no clear answers. Because these questions represent the junction between knowledge and information, which both have undefined value, and physical objects for which value is defined, the questions themselves seem to raise their own problems in the moral and ethical realm with which many librarians are uncomfortable. The ethical boundaries of reference service have been debated in the library community from the beginnings of American librarianship. Edmund Lester Pearson provided the librarian with this adjuration: "Question each Applicant closely. See that he be a Person of good Reputation, scholarly Habits, sober and courteous Demeanour. Any mere Trifler, a person that would Dally with Books, or seek in them shallow Amusement, may be Dismiss' d without Delay. 1 Though not made seriously, his words struck a chord among American librarians who, in 1909, were fully prepared to accept this injunction as a basic doctrine of eighteenth-century librarianship. 2 As guardians of a public trust committed to education, knowledge, and culture, librarians have, it seems, an ambivalent perspective on the motives that spur people to seek their services. In the past, this perspective has manifested itself in debate over newspaper reading rooms, popular fiction in library collections, and even in the provision of business information and other specialized reference services. The acceptance by American librarians of policy statements by the American Library Association insisting on freedom of access to information and on the right of library users to courteous and able responses to their queries has, to some extent, reduced the ambiguity inherent in librarians' tasks but has not eliminated it. Though the ethics of reference service dictate that each question asked by a library user is validated by that question's importance to the person asking it and that challenging the legitimacy of information needs is beyond the proper domain of librarians, it is evident that there are types of questions that are regarded as improper subjects of inquiry as well as groups of users who are seen as pariahs in the information world. Librarians have, in some sense, come to terms with the homeless and the latch-key children. They have pu
Ethics and the Internet in West Africa : toward an ethical model of integration
French version available in IDRC Digital Library: Enjeux éthiques d'Internet en Afrique de l'Ouest : vers un modèle éthique d'intégratio
The young massive SMC cluster NGC 330 seen by MUSE III. Stellar parameters and rotational velocities
The origin of initial rotation rates of stars, and how a star's surface
rotational velocity changes during the evolution, either by internal angular
momentum transport or due to interactions with a binary companion, remain open
questions in stellar astrophysics. Here, we aim to derive the physical
parameters and study the distribution of (projected) rotational velocities of
B-type stars in the 35 Myr-old, massive cluster NGC 330 in the Small Magellanic
Cloud. NGC 330 is in an age range where the number of post-interaction binaries
is predicted to be high near the cluster turnoff (TO). We develop a
simultaneous photometric and spectroscopic grid-fitting method adjusting
atmosphere models on multi-band Hubble Space Telescope photometry and Multi
Unit Spectroscopic Explorer spectroscopy. This allows us to homogeneously
constrain the physical parameters of over 250 B and Be stars, brighter than
mF814W = 18.8 mag. The rotational velocities of Be stars in NGC 330 are
significantly higher than the ones of B stars. The rotational velocities vary
as a function of the star's position in the color-magnitude diagram,
qualitatively following predictions of binary population synthesis. A
comparison to younger clusters shows that stars in NGC 330 rotate more rapidly
on average. The rotational velocities of the 35 Myr old population in NGC 330
quantitatively agree with predictions for a stellar population that underwent
significant binary interactions: the bulk of the B stars could be single stars
or primaries in pre-interaction binaries. The rapidly spinning Be stars could
be mass and angular momentum gainers in previous interactions, while those Be
stars close to the TO may be spun-up single stars. The slowly rotating,
apparently single stars above the TO could be merger products. The different
vsini-characteristics of NGC 330 compared to younger populations can be
understood in this framework.Comment: 18 pages (incl. appendix), 15 figures, 3 tables, accepted for
publication in A&
A Classification of Motivation and Behavior Change Techniques Used in Self-Determination Theory-Based Interventions in Health Contexts
While evidence suggests that interventions based on self-determination theory have efficacy in
motivating adoption and maintenance of health-related behaviors, and in promoting adaptive
psychological outcomes, the motivational techniques that comprise the content of these
interventions have not been comprehensively identified or described. The aim of the present
study was to develop a classification system of the techniques that comprise self-determination
theory interventions, with satisfaction of psychological needs as an organizing principle.
Candidate techniques were identified through a comprehensive review of self-determination
theory interventions and nomination by experts. The study team developed a preliminary list of
candidate techniques accompanied by labels, definitions, and function descriptions of each.
Each technique was aligned with the most closely-related psychological need satisfaction
construct (autonomy, competence, or relatedness). Using an iterative expert consensus
procedure, participating experts (N=18) judged each technique on the preliminary list for
redundancy, essentiality, uniqueness, and the proposed link between the technique and basic
psychological need. The procedure produced a final classification of 21 motivation and
behavior change techniques (MBCTs). Redundancies between final MBCTs against techniques
from existing behavior change technique taxonomies were also checked. The classification
system is the first formal attempt to systematize self-determination theory intervention
techniques. The classification is expected to enhance consistency in descriptions of selfdetermination theory-based interventions in health contexts, and assist in facilitating synthesis
of evidence on interventions based on the theory. The classification is also expected to guide
future efforts to identify, describe, and classify the techniques that comprise self-determination
theory-based interventions in multiple domains
The Family Name as Socio-Cultural Feature and Genetic Metaphor: From Concepts to Methods
A recent workshop entitled The Family Name as Socio-Cultural Feature and Genetic Metaphor: From Concepts to Methods was held in Paris in December 2010, sponsored by the French National Centre for Scientific Research (CNRS) and by the journal Human Biology. This workshop was intended to foster a debate on questions related to the family names and to compare different multidisciplinary approaches involving geneticists, historians, geographers, sociologists and social anthropologists. This collective paper presents a collection of selected communications
Ethnic inequalities and pathways to care in psychosis in England: a systematic review and meta-analysis
© The Author(s). 2018Background: As part of a national programme to tackle ethnic inequalities, we conducted a systematic review and meta-analysis of research on ethnic inequalities in pathways to care for adults with psychosis living in England and/or Wales. Methods: Nine databases were searched from inception to 03.07.17 for previous systematic reviews, including forward and backward citation tracking and a PROSPERO search to identify ongoing reviews. We then carried forward relevant primary studies from included reviews (with the latest meta-analyses reporting on research up to 2012), supplemented by a search on 18.10.17 in MEDLINE, Embase, PsycINFO and CINAHL for primary studies between 2012 and 2017 that had not been covered by previous meta-analyses. Results: Forty studies, all conducted in England, were included for our updated meta-analyses on pathways to care. Relative to the White reference group, elevated rates of civil detentions were found for Black Caribbean (OR = 3.43, 95% CI = 2.68 to 4.40, n = 18), Black African (OR = 3.11, 95% CI = 2.40 to 4.02, n = 6), and South Asian patients (OR = 1.50, 95% CI 1.07 to 2.12, n = 10). Analyses of each Mental Health Act section revealed significantly higher rates for Black people under (civil) Section 2 (OR = 1.53, 95% CI = 1.11 to 2.11, n = 3). Rates in repeat admissions were significantly higher than in first admission for South Asian patients (between-group difference p < 0.01). Some ethnic groups had more police contact (Black African OR = 3.60, 95% CI = 2.15 to 6.05, n = 2; Black Caribbean OR = 2.64, 95% CI = 1.88 to 3.72, n = 8) and criminal justice system involvement (Black Caribbean OR = 2.76, 95% CI = 2.02 to 3.78, n = 5; Black African OR = 1.92, 95% CI = 1.32 to 2.78, n = 3). The White Other patients also showed greater police and criminal justice system involvement than White British patients (OR = 1.49, 95% CI = 1.03 to 2.15, n = 4). General practitioner involvement was less likely for Black than the White reference group. No significant variations over time were found across all the main outcomes. Conclusions: Our updated meta-analyses reveal persisting but not significantly worsening patterns of ethnic inequalities in pathways to psychiatric care, particularly affecting Black groups. This provides a comprehensive evidence base from which to inform policy and practice amidst a prospective Mental Health Act reform. Trial registration: CRD42017071663Peer reviewedFinal Published versio
Quantum state preparation and macroscopic entanglement in gravitational-wave detectors
Long-baseline laser-interferometer gravitational-wave detectors are operating
at a factor of 10 (in amplitude) above the standard quantum limit (SQL) within
a broad frequency band. Such a low classical noise budget has already allowed
the creation of a controlled 2.7 kg macroscopic oscillator with an effective
eigenfrequency of 150 Hz and an occupation number of 200. This result, along
with the prospect for further improvements, heralds the new possibility of
experimentally probing macroscopic quantum mechanics (MQM) - quantum mechanical
behavior of objects in the realm of everyday experience - using
gravitational-wave detectors. In this paper, we provide the mathematical
foundation for the first step of a MQM experiment: the preparation of a
macroscopic test mass into a nearly minimum-Heisenberg-limited Gaussian quantum
state, which is possible if the interferometer's classical noise beats the SQL
in a broad frequency band. Our formalism, based on Wiener filtering, allows a
straightforward conversion from the classical noise budget of a laser
interferometer, in terms of noise spectra, into the strategy for quantum state
preparation, and the quality of the prepared state. Using this formalism, we
consider how Gaussian entanglement can be built among two macroscopic test
masses, and the performance of the planned Advanced LIGO interferometers in
quantum-state preparation
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