231 research outputs found
Rescuing Complementarity With Little Drama
The AMPS paradox challenges black hole complementarity by apparently
constructing a way for an observer to bring information from the outside of the
black hole into its interior if there is no drama at its horizon, making
manifest a violation of monogamy of entanglement. We propose a new resolution
to the paradox: this violation cannot be explicitly checked by an infalling
observer in the finite proper time they have to live after crossing the
horizon. Our resolution depends on a weak relaxation of the no-drama condition
(we call it "little drama") which is the "complementarity dual" of scrambling
of information on the stretched horizon. When translated to the description of
the black hole interior, this implies that the fine-grained quantum information
of infalling matter is rapidly diffused across the entire interior while
classical observables and coarse-grained geometry remain unaffected. Under the
assumption that information has diffused throughout the interior, we consider
the difficulty of the information-theoretic task that an observer must perform
after crossing the event horizon of a Schwarzschild black hole in order to
verify a violation of monogamy of entanglement. We find that the time required
to complete a necessary subroutine of this task, namely the decoding of Bell
pairs from the interior and the late radiation, takes longer than the maximum
amount of time that an observer can spend inside the black hole before hitting
the singularity. Therefore, an infalling observer cannot observe monogamy
violation before encountering the singularity.Comment: 26 pages, 3 figures - v2: added references, small tweaks - v3:
corrected typos to reflect final published versio
Reciprocal fit concept in mission statement research
There is a stalemate in mission-performance research. While past studies focus on strategic alignment, recent
studies attempt to move the mission-performance research
forward using the reciprocal fit concept. This concept provides explanatory power in predicting performance of the firm. However, there is a lack of research into the reciprocal fit concept. The concept needs further clarification. This study aims to elucidate the concept of reciprocal fit by: (1) investigating the theoretical underpinning of the fit concepts; (2) identifying the
conditions of reciprocal fit; and (3) find empirical evidence supporting this reciprocal fit. The originality of this study is in the knowledge contribution of the reciprocal fit concept and the integration of resource-based view and reciprocal determination theory as the underpinning theories supporting the concept
Electrophoresis : what does a century old technology hold for the future of separation science?
Electrophoretic separation was first demonstrated in the year of 1807 and has since been a
staple tool used by biologists and chemists for more than a century since its inception. From the initial
crude paper electrophoresis system to today’s modern automated electrophoresis system, the
development of electrophoresis systems have been driven by the advancement of technology such as
miniaturization, precision engineering, biochemistry, electrical and electronics. These advancements were
introduced to meet the requirement for faster and better resolution of results. This paper reviews the
evolution of the electrophoresis technology over one century and provides an insight into the possible
future development of electrophoresis.Various aspects of the electrophoresis system such as the
performances, designs, usages, separation phases, and biochemistry were analyzed. The technological
advancements for this field have been evidenced by the increasing complexity of the electrophoresis
system. A peek into the possible future for the world of electrophoresis has been provided by drawing
insights from the missing links of current technologies. It is both exciting and equally perplexing to explore
the promises that this seeming simple separation technology holds for the future
Rescuing complementarity with little drama
The AMPS paradox challenges black hole complementarity by apparently constructing a way for an observer to bring information from the outside of the black hole into its interior if there is no drama at its horizon, making manifest a violation of monogamy of entanglement. We propose a new resolution to the paradox: this violation cannot be explicitly checked by an infalling observer in the finite proper time they have to live after crossing the horizon. Our resolution depends on a weak relaxation of the no-drama condition (we call it “little-drama”) which is the “complementarity dual” of scrambling of information on the stretched horizon. When translated to the description of the black hole interior, this implies that the fine-grained quantum information of infalling matter is rapidly diffused across the entire interior while classical observables and coarse-grained geometry remain unaffected. Under the assumption that information has diffused throughout the interior, we consider the difficulty of the information-theoretic task that an observer must perform after crossing the event horizon of a Schwarzschild black hole in order to verify a violation of monogamy of entanglement. We find that the time required to complete a necessary subroutine of this task, namely the decoding of Bell pairs from the interior and the late radiation, takes longer than the maximum amount of time that an observer can spend inside the black hole before hitting the singularity. Therefore, an infalling observer cannot observe monogamy violation before encountering the singularity
A low cost, simplified and battery-powered mobile electrophoresis system suitable as edutainment tool.
Electrophoresis originated since 1807 and has been a staple tool used by biologist
and chemist over the centuries since its inception. From paper electrophoresis system to today’s
modern automated electrophoresis system, the development of electrophoresis systems have been
driven by the advancement of technology and also by the requirement of better and faster
resolution of results. This paper reviews the progress of electrophoresis over the decades and into
possible future development of electrophoresis
Bolocam: a millimeter-wave bolometric camera
We describe the design of Bolocam, a bolometric camera for millimeter-wave observations at the Caltech Submillimeter Observatory. Bolocam will have 144 diffraction-limited detectors operating at 300 mK, an 8 arcminute field of view, and a sky noise limited NEFD of approximately 35 mJy Hz^(-1/2) per pixel at λ = 1.4 mm. Observations will be possible at one of (lambda) equals 1.1., 1.4, or 2.1 mm per observing run. The detector array consists of sensitive NTD Ge thermistors bonded to silicon nitride micromesh absorbers patterned on a single wafer of silicon. This is a new technology in millimeter-wave detector array construction. To increase detector packing density, the feed horns will be spaced by 1.26 fλ (at λ = 1.4 mm), rather than the conventional 2fλ . DC stable read out electronics will enable on-the-fly mapping and drift scanning. We will use Bolocam to map Galactic dust emission, to search for protogalaxies, and to observe the Sunyaev- Zel'dovich effect toward galaxy clusters
Mission statement effectiveness: Investigating managers’ sensemaking role
Purpose – This study highlights the instrumental role of the mission statement as a tool used by managers to
shape value congruence to achieve enhanced employee performance levels.
Design/methodology/approach – A variance-based structural equation modelling was used to analyse the
data obtained from a sample of 123 managers working in private organisations in Malaysia.
Findings – The management sensemaking approach is useful in mission statement research. Managers’
involvement in clarifying the mission statement to various firm stakeholders, especially employees, is the
strongest predictor of value congruency between employees and the firm, leading to improved levels of
employee behavioural performance. Managers can influence value congruency through two processes:
(1) guiding and shaping employees’ values and (2) adapting the mission statement’s contents.
Research limitations/implications – Future studies can consider the impact of managerial role modelling
on employees’ value alignment with the firm in longitudinal studies. Other aspects of alignment offer further
research opportunities, for example, HR policy alignment and alignment of marketing and operation strategies
with the mission statement.
Practical implications – Managers should move beyond treating the mission statement as a management tool.
Instead, it is a firm philosophy that reflects managers’ words and deeds and exemplifies their philosophical ideals.
Originality/value – Despite three decades of research into the relationship between the mission statement and performance, the results have been mixed. Therefore, this study adopts a sensemaking approach to research the mission-performance relationship underpinned by the resource-based view (RBV) theory
- …