721 research outputs found
Issue Framing in Online Discussion Fora
In online discussion fora, speakers often make arguments for or against
something, say birth control, by highlighting certain aspects of the topic. In
social science, this is referred to as issue framing. In this paper, we
introduce a new issue frame annotated corpus of online discussions. We explore
to what extent models trained to detect issue frames in newswire and social
media can be transferred to the domain of discussion fora, using a combination
of multi-task and adversarial training, assuming only unlabeled training data
in the target domain.Comment: To appear in NAACL-HLT 201
Управление работой персонала «Suning Commerce Group Co»
Объектом исследования является компания "Suning Commerce Group Co".
Предметом исследования является управление работой персонала "Suning Commerce Group Co".
Цель работы – разработать рекомендации по повышению эффективности работы персонала "Suning Commerce Group Co".
Актуальность заключается в значимости процесса управления персоналом для организации. Управление персоналом в компании является важной и ключевой составляющей всей организации"Suning Commerce Group Co" путем реализации рекомендаций по повышению эффективности работы персонала.The object of the study is the company "Suning Commerce Group Co".
The subject of the study is the management of the work of the staff of Suning Commerce Group Co.
The purpose of the work is to develop recommendations for increasing the efficiency of the work of the staff of Suning Commerce Group Co.
The relevance lies in the importance of the process of personnel management for the organization. Personnel management in the company is an important and key component of the entire organization of "Suning Commerce Group Co" by implementing recommendations to improve staff performance
Prospects for high-resolution microwave spectroscopy of methanol in a Stark-deflected molecular beam
Recently, the extremely sensitive torsion-rotation transitions in methanol
have been used to set a tight constraint on a possible variation of the
proton-to-electron mass ratio over cosmological time scales. In order to
improve this constraint, laboratory data of increased accuracy will be
required. Here, we explore the possibility for performing high-resolution
spectroscopy on methanol in a Stark-deflected molecular beam. We have
calculated the Stark shift of the lower rotational levels in the ground
torsion-vibrational state of CH3OH and CD3OH molecules, and have used this to
simulate trajectories through a typical molecular beam resonance setup.
Furthermore, we have determined the efficiency of non-resonant multi-photon
ionization of methanol molecules using a femtosecond laser pulse. The described
setup is in principle suited to measure microwave transitions in CH3OH at an
accuracy below 10^{-8}
Verkennend onderzoek langs de Witte Nete (provincie Antwerpen): een geomorfologische benadering van archeologisch-landschappelijk diagnostisch onderzoek in de Kempen
The valley of the Kleine Nete river is archaeologically
a poorly documented region, primarily due to lack of
archaeological surveys. This lack of knowledge stands
in the way of developing efficient archaeological
management strategies in light of planning- or
development schemes. When an advice was asked
for drawing up a basin management plan for the
Nete basin, we decided for a period from end 2004 to
march 2005 to focus attention within the department
of the Central Archaeological Inventory (CAI)
of the Flemish Heritage Institute on this region.
For this purpose the data in the CAI was revised,
a number of amateur archaeologists active in the
region were contacted and thus some new findspots
were recorded, and a sample fieldwalking survey was
executed with the main upper course of the Kleine Nete
(the Witte Nete) as central focuspoint. This survey is
the subject of this article.
Our aims were to 1) collect primary archaeological
data, and 2) develop a methodology for regional diagnostic research and evaluation mapping taking into account the unknown archaeological heritage, without
using the classic predictive modelling strategies. For
this purpose the following steps were undertaken:
1) Creation of a basic geomorphological map of
the area
2) Archaeological fieldwalking survey, aiming
to equally sample all geomorphological units (if
possible)
3) Comparing the results from steps 1 & 2 and
identification of patterns
4) Augering survey to test the geomorphological
model and assess the physical preservation of
landscape elements
5) Interpretation and modelling preservation- and
research potential.
To develop the basic geomorphological map a
number of sources were used: quaternary geological
maps, soil maps, recent and historical topographical
maps, aerial photographs, and the digital terrain
model of Flanders. This last instrument was
developed very recently (2004), and is a dtm covering
the whole of Flanders.
The basic notion behind the research was to integrate and interpret the landscape and archaeological
data in one matrix, as a result of intertwined depositional and post-depositional processes.
The result is a model of preservation potential
and research possibilities. Rare landscape elements
such as late glacial dune ridges, palaeochannels, etc.
were identified and mapped, and it was possible to
assess the historical and subrecent erosion processes
in developing a general preservation model with the
identification of strongly physically degraded areas.
This approach also identified a number of important
gaps in our geomorphological knowledge: primarily
the phasing in the evolution and stratigraphy of the
Holocene valleys, and the internal morphology of the
Holocene dune areas.
The archaeological artefacts collected during the
fieldwalking survey were interpreted and assessed
in light of the identified post-depositional processes
and geomorphological units. In this interpretation
distributional patterns could be distinguished which
can be ascribed on the one hand to preferences in
landuse patterns in different periods, on the other
hand resulting from post- depositional processes,
finally to the data collection strategy (fieldwalking).
When comparing the patterns discovered during
this study with archaeological prediction models used
in the region, we had come to the conclusions that:
1) The available sources for the creation of good
prediction models (in the classic, processual
meaning of the term) are insufficient and lack
detail
2) The classic prediction models are strongly
simplified documents, taking into account only a
minor number of parameters
3) The predicted patterns in these models, when
applied to our study, are very unaccurate.
On the basis of the resulting model pro-active
strategies can be developed which include research
strategies to fill in our gaps in the knowledge, and
further evaluation and preservation strategies for
the identified well preserved areas. Zones of rare
preservation potential can be detected and in a next
phase evaluated. In light of development schemes
appropriate preventive measures can be formulated
for each geomorphological unit.
The research here described had mainly a methodological focus. Despite the small scale of the research we succeeded in creating a basic model for
archaeological regional diagnostics for the Campine
area, which is mainly based on geo-archaeological approaches. This model will be further refined in the
future, attempting to fill in the gaps in the geomorphological knowledge, and gathering more basic data
with additional surveys in the Campine area
Screening van de gekende archeologie in Vlaanderen in functie van de inventaris van archeologische zones
Managing frailty: exploring the effectiveness of integrated primary care interventions by distinguishing subpopulations of frail older people
A Method to Calculate Adherence to Inhaled Therapy That Reflects the Changes in Clinical Features of Asthma.
Rationale Currently studies on adherence to inhaled medications report Average Adherence over time. This measure does not account for variations in the interval between doses nor for errors in inhaler use. Objectives We investigated whether adherence calculated as a single Area Under the concentration-time Curve (AUC) measure, incorporating the interval between doses and inhaler technique, was more reflective of patient outcomes than current methods of assessing adherence. Methods We attached a digital audio device (INCATM) to a dry powder inhaler. This recorded when the inhaler was used and analysis of the audio data indicated if the inhaler had been used correctly. These aspects of inhaler use were combined to calculate adherence over time, as an AUC measure. Over a 3 month period a cohort of asthma patients were studied. Adherence to a twice-daily inhaler preventer therapy using this device and clinical measures were assessed. Measurements and Results Recordings from 239 patients with severe asthma were analysed. Average Adherence, based on the dose counter was 84.4%, whereas the ratio of expected to observed accumulated AUC, Actual Adherence, was 61.8% (
Sensitivity to a possible variation of the proton-to-electron mass ratio torsion-wagging-rotation transitions in methylamine CH3NH2
9 x 10(-6) is deduced
Assessing Communities of Practice in health policy : A conceptual framework as a first step towards empirical research
Peer reviewe
Development and characterization of novel reversibly switchable red fluorescent proteins with opposing switching modes
Since the discovery of the green fluorescent protein (GFP) from the jellyfish Aequorea victoria, a multitude of fluorescent proteins have been derived from the original GFP and its homologs by protein engineering. Their characteristics were especially adapted to the requirements of different types of live-cell fluorescence microscopy. This includes super-resolution microscopy techniques, which overcome the diffraction barrier by distinguishing fluorophores based on different molecular states. Fluorescent proteins in the subclass of reversibly switchable fluorescent proteins (RSFPs) can be switched from a fluorescent to a non-fluorescent state and vice versa by light of certain wavelengths. These RSFPs can be utilized as fusion tags in reversible saturable optical fluorescence transition (RESOLFT) microscopy to achieve diffraction-unlimited resolution. Compared to the green-emitting RSFPs, the application of red-emitting RSFPs benefits from the longer excitation and switching wavelengths utilized and the associated less phototoxicity. However, the number of red RSFPs applicable for live-cell RESOLFT microscopy is limited until now and the available red RSFPs exhibit undesirable characteristics like dimerization tendency. This work presents the development of novel red RSFPs for RESOLFT microscopy. In order to identify superior red RSFPs, a microscopic screening of mutant libraries expressed in E. coli colonies was employed. To additionally facilitate the screening for improved fluorescent proteins in a mammalian expression system, a monoclonal Bxb1 landing pad cell line was generated using CRISPR/Cas9 genome engineering. Since the application of these Bxb1 landing pad cells enables the expression of only a single mutant from a transfected library in each cell, this strategy was suitable to screen for red RSFPs with higher brightness and offers a large potential to establish further screening approaches. By semi-rational design and screening, novel red RSFPs with opposing switching modes were generated from bright conventional red fluorescent proteins. Three positive-switching RSFPs were developed on the basis of mRuby2 and two negative-switching RSFPs were derived from mScarlet. All of these five RSFPs are monomeric, feature low residual fluorescence in the off-state (below 5 %), and are among the red RSFPs with the highest molecular brightness known today. The characterization of their performance as fusion tag in transient and stable expressions suggest that the novel red RSFPs are suitable for live-cell microscopy. The quantum yields of the switchable mScarlet variants are the highest determined for red RSFPs to date and the switching kinetics of the new negative-switching RSFPs exceeded those of the recently published rsFusionRed2 and rsFusionRed3. In addition, the generated RSFPs based on mRuby2 outperformed rsCherry in all analyzed switching characteristics and represent the only red fluorescent and positive-switching candidates for live-cell RESOLFT microscopy. A resolution beyond the diffraction limit was demonstrated utilizing one of the switchable mRuby2 variants in a proof of concept experiment
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