Events In Space Research Articles

Non-locality and quasiclassical reality in Kent’s formulation of relativistic quantum theory

We report Adrian Kent’s proposed framework for a realist, one-world, Lorentz-invariant formulation of quantum theory. The idea is to postulate a final boundary condition: in effect, a late-time distribution of mass-energy recording how photons scattered off macroscopic objects. Nature selects this final boundary condition with the orthodox late-time Born probability; and this defines the probability space of events, to give a realist quantum theory. We emphasize two topics. First, we consider this formulation’s verdicts about traditional locality conditions, such as Outcome Independence and Parameter Independence. Second, we discuss a possible amendment to Kent’s proposal that, roughly speaking, allows for the emergence of a quasiclassical history even when mass-energy is shielded or delayed from appearing in the final boundary condition.

MFDAU: A multi-features event participation prediction model for users of different activity levels

Event-based social networks (EBSNs) provide a platform for users to organize, participate in and share events. Predicting event participants in EBSNs is beneficial for many applications, such as event recommendation and influence analysis. Existing event participation prediction methods do not consider the differences between active users and inactive users, resulting in the overall performance for users of different activity levels is not good enough. For this problem, we propose a multi-features model for users of different activity levels (MFDAU) to improve the overall performance of event participation prediction by extracting user features from multiple aspects, including event content, time, space and social relation, and training different feature parameters for active users and inactive users respectively. Besides, considering it is more challenging to predict event participation for inactive users, we propose a double-layer local random walk (DLRW) method to extract the social features of users, which is expected to improve the prediction performance for inactive users by finding similar users from one user’s local social circle and extracting effective user features according to these similar users. Experimental results on real dataset collected from DoubanEvent show that our proposed model is superior to several comparison schemes, such as MFN, PEA and DSI, which increases the average F1-score for overall users by 3.9%, 17.3% and 6.5%, active users by 3.5%, 17.3% and 10.9%, and inactive users by 4.6%, 17.7% and 6.2% respectively.

Liminality Creation Strategies at Supplemental Events

The celebratory nature that some events generate creates a liminoid space through which participants can obtain social benefits. This article examines Chalip's five liminality strategies in the context of supplemental events, which are events run in conjunction with major sporting events. The discussion is framed within the context of two supplemental events aligned to the 2015 ICC Cricket World Cup, the Fan Zone, and the Trophy Tour. Using 152 short interviews with attendees, the study found some evidence of the presence of Chalip's strategies at these events and that these lead to social benefits. However, the level of liminality and communitas created was minimal, due to the open access nature of the event spaces and also because "live" World Cup matches were not broadcasted akin to typical "live sites." The study contributes to understanding in relation to liminality strategies in the context of supplemental events.

Architecture as event space: Violence, securitisation, and resistance

AbstractCentral to the conception of this article is the architectural theorist Bernard Tschumi's dictum, ‘There is no architecture without action, no architecture without events, no architecture without program … no architecture without violence.’ Shaped as well by Eyal Weizman's conception of ‘forensic architecture’, the focus of the investigation is on Israel's architecture of security and on the corresponding Palestinian architecture of resistance. Emphasising an encounter of cartographies that reveals the way Palestinians make life livable in response to the architectural violence they face, the analysis continues with reference to Yari Sharif's analysis of architectures of resistance and with a reading of a feature film, Hany Abu-Assad'sOmar(2013) in which the Separation Wall between Israel and Palestine is one of the film's primary agent/protagonists. The article surveys popular culture texts, focused on crime and espionage to analyse a range of security practices and breaches that amplify the analysis with attention to security issues in individual households, multiple-person dwelling arrangements, architectural locations throughout cities, and buildings housing governmental security agencies. That trajectory of architectural sites lends a micropolitical analysis to the macropolitical level of governmental policy and modes of resistance to it.

Metric Space of Collider Events.

When are two collider events similar? Despite the simplicity and generality of this question, there is no established notion of the distance between two events. To address this question, we develop a metric for the space of collider events based on the earth mover's distance: the "work" required to rearrange the radiation pattern of one event into another. We expose interesting connections between this metric and the structure of infrared- and collinear-safe observables, providing a novel technique to quantify event modifications due to hadronization, pileup, and detector effects. We showcase how this metrization unlocks powerful new tools for analyzing and visualizing collider data without relying upon a choice of observables. More broadly, this framework paves the way for data-driven collider phenomenology without specialized observables or machine learning models.

Sounding out Place and Cultural Memory in Tempelhofer: Human Scale

Sounding out Place and Cultural Memory in <i>Tempelhofer: Human Scale</i>

Noether Theorem on Time Scales for Lagrangian Systems in Event Space

The Noether symmetry and the conserved quantity on time scales in event space are studied in this paper. Firstly, the Lagrangian of parameter forms on time scales in event space are established. The Euler-Lagrange equations and the second Euler-Lagrange equations of variational calculus on time scales in event space are established. Secondly, based upon the invariance of the Hamilton action on time scales in event space under the infinitesimal transformations of a group, the Noether symmetry and the conserved quantity on time scales in event space are established. Finally, an example is given to illustrate the method and results.

Staying at the heart of the institution: The small college library as an event space

Libraries at small colleges, especially colleges with a nontraditional student population, face an uphill struggle to remain relevant in the life of the institution. Students at colleges like these tend to be adults who are already in the workforce and have many responsibilities and demands on their time outside of school. These students will usually either come to campus for their classes and leave or take online classes and rarely set foot on campus.

Artificial intelligence in today’s hotel revenue management: opportunities and risks

ABSTRACTThe implementation of revenue management in the hospitality industry has significantly increased in the past years. It started in the rooms departments and is slowly evolving to be further used for conference and event spaces, as well as food and beverage outlets. At the same time, advancements in technology allow new products such as automated revenue management systems to develop. On one hand, the opportunities are to make use of big data and shift to a science-based revenue management. On the other hand, risks include the increased vulnerability such as through hacking or data leaks. The current debate is often dominated by the fear of possible job loss and a lack of trust in the new technology. Nonetheless, the industry is slowly shifting towards automation and will have to adapt over time.

Basic Fuzzy Event Space and Probability Distribution of Probability Fuzzy Space

In this paper, the problems of basic fuzzy event space and of probability fuzzy space are studied. Firstly, the concepts of basic fuzzy event, fuzzy event and basic fuzzy event space are defined, related properties are investigated, and some results that will be used in the next study of probability fuzzy space are obtained. Then, the definitions of the probability function for fuzzy events and probability fuzzy space are given, some properties of the defined probability function are obtained. In addition, some models of probability distribution of probability fuzzy space based on a known probability space are proposed, and some examples are given to show the usability of the proposed models of probability distribution.

Bridging the gap between the near and the far: Displacement and representation

AbstractThis article discusses the use of proximal deictic expressions to designate distal entities, focusing on the use of the present tense to designate past events. Cognitive approaches to this issue assume that such usages presuppose a special conceptual construal, in which the spatio-temporal distance between the ground and the designated event space is bridged in some way. In this paper, I argue that there are two distinct ways in which this may be accomplished. One is through mentally displacing the ground to the distal space, so that the designated events become proximal in relation to this alternative ground. The other involves bringing the distal space into the ground in the form of a representation. I describe the distinctive characteristics of the two scenarios, showing both where they converge and at what point the difference becomes relevant for linguistic analysis.

PDES-A

In this article, we present experiences implementing a general Parallel Discrete Event Simulation (PDES) accelerator on a Field Programmable Gate Array (FPGA). The accelerator can be specialized to any particular simulation model by defining the object states and the event handling code, which are then synthesized into a custom accelerator for the given model. The accelerator consists of several event processors that can process events in parallel while maintaining the dependencies between them. Events are automatically sorted by a self-sorting event queue. The accelerator supports optimistic simulation by automatically keeping track of event history and supporting rollbacks. The architecture is limited in scalability locally by the communication and port bandwidth of the different structures. However, it is designed to allow multiple accelerators to be connected to scale up the simulation. We evaluate the design and explore several design trade-offs and optimizations. We show that the accelerator can scale to 64 concurrent event processors relative to the performance of a single event processor. At this point, the scalability becomes limited by contention on the shared structures within the datapath. To alleviate this bottleneck, we also develop a new version of the datapath that partitions the state and event space of the simulation but allows these partitions to share the use of the event processors. The new design substantially reduces contention and improves the performance with 64 processors from 49x to 62x relative to a single processor design. We went through two iterations of the design of PDES-A, first using Verilog and then using Chisel (for the partitioned version of the design). We report in this article on some observations in the differences in prototyping accelerators using these two different languages. PDES-A outperforms the ROSS simulator running on a 12-core Intel Xeon machine by a factor of 3.2x with less than 15% of the power consumption. Our future work includes building multiple interconnected PDES-A cores.

The Polish Community of Greenpoint, Brooklyn, Then and Now: A View from the Street

Abstract This article examines the changes that have occurred in Greenpoint, Brooklyn, throughout the years. Greenpoint became home to many Polish immigrants who sought economic opportunities in the U.S. and who wanted to escape from Soviet-era political unrest. Greenpoint became known as “Little Warsaw.” With economic restructuring in the U.S. and globalization, Greenpoint was affected. Factories and industrial work employing the Polish and working-class community was replaced by a service economy. The latest trend is gentrification and large scale, luxury development. The Polish community, to a large extent, has been priced-out. Polish retail, entertainment venues, and event spaces have also diminished because of dramatic commercial rent increases and shrinking population. The Polish community is found re-establishing itself in more affordable neighborhoods of New York City.

Sociopreneurship Business Incubator Design Based On Information Technology As an Innovative Solution for Enhancing Community Welfare

Purpose: This research aimed is to design a sociopreneurship (Social Entrepreneurship) business incubator system by integrating the Information Technology Infrastructure Library (ITIL) features as a supporting tool in managing business incubator. With the sociopreneurship business incubator design is expected to help overcome social problems that occur in the community.&#x0D; Design/methodology/approach: This research is a qualitative research using the Human Centered Design (HCD) method. The stages in this HCD method are Hear, Create and Delivery. However, because the purpose of this study is to design, the stages that are passed are up to the Create stage.&#x0D; Findings: Based on the research, business incubators design were produced with 7 business fields, 5 service fields, 2 phases, namely co worker space and event space with details: 5 programs and activities in the co worker space phase and 2 programs and activities in the event space phase. Business incubator system also designed by integrating the Information Technology Infrastructure Library (ITIL) features as a supporting tool in managing business incubator.&#x0D; Research limitations/implications: This research is limited to the design so that the 3 stages of the HCD method are used only up to the second stage, namely the Create stage.&#x0D; Practical implications: In this research, it seeks to accommodate the community's needs for a business field so that services and programs of business incubator can be obtained that are in accordance with the needs of the community. This study also seeks to present a business incubator that is tailored to the needs of the community so that the community does not only have economic independence but can be mutually transmitted and sustainable with other communities (sociopreneurship) and by utilizing information technology.&#x0D; Originality/value: In this study the researchers collected, identified and interpreted the data that had been obtained. For this purpose, a literature review and approach to the HCD method are used through interview techniques by approaching the community and analyzing their needs in order to produce an analysis of results accordingly.&#x0D; Paper type: Research paper

A New Timing Error Cost Function for Binary Time Series Prediction.

The ability to make predictions is central to the artificial intelligence problem. While machine learning algorithms have difficulty in learning to predict events with hundreds of time-step dependencies, animals can learn event timing within tens of trials across a broad spectrum of time scales. This suggests strongly a need for new perspectives on the forecasting problem. This paper focuses on binary time series that can be predicted within some temporal precision. We demonstrate that the sum of squared errors (SSE) calculated at every time step is not appropriate for this problem. Next, we look at the advantages and shortcomings of using a dynamic time warping (DTW) cost function. Then, we propose the squared timing error (STE) that uses DTW on the event space and applies SSE on the timing error instead of at each time step. We evaluate all three cost functions on different types of timing errors, such as phase shift, warping, and missing events, on synthetic and real-world binary time series (heartbeats, finance, and music). The results show that STE provides more information about timing error, is differentiable, and can be computed online efficiently. Finally, we devise a gradient descent algorithm for STE on a simplified recurrent neural network. We then compare the performance of the STE-based algorithm to SSE- and logit-based gradient descent algorithms on the same network architecture. The results in real-world binary time series show that the STE algorithm generally outperforms all the other cost functions considered.

Cross sectional analysis of student-led surgical societies in fostering medical student interest in Canada

BackgroundThe objective of this study was to examine how surgery interest groups (SIGs) across Canada function and influence medical students’ interest in surgical careers.MethodsTwo unique surveys were distributed using a cross sectional design. The first was sent to SIG executives and the second to SIG members enrolled at a Canadian medical school in the 2016/17 academic year. The prior focused on the types of events hosted, SIG structure/ supports, and barriers/ plans for improvement. The second questionnaire focused on student experience, involvement, and suggestions for improvement.ResultsSIG executives became involved in SIG through classmates and colleagues (8/17, 47%). Their roles focused on organizing events (17/17, 100%), facilitating student contact with resident/surgeons (17/17, 100%), and organizing funding (13/17, 76%). Surgical skills events were among the most successful and well received by students (15/17, 88%). Major barriers faced by SIG executives during their tenure included time conflicts with other interest groups (13/17, 76%), lack of funding (8/17, 47%), and difficulty booking spaces for events (8,17, 47%). SIGs were found to facilitate improvement in basic surgical skills (μ = 3.89/5 ± 0.70) in a comfortable environment (μ = 4.02/5, ±0.6), but were not helpful with final block examinations (μ = 2.98/5, ±0.80). Members indicated that more skills sessions, panel discussion and shadowing opportunities would be beneficial additions. Overall, members felt that SIGs increased their interest in surgical careers (μ = 3.50/5, ±0.79).ConclusionCanadian SIGs not only play a critical role in early exposure, but may provide a foundation to contribute to student success in surgery.

Hefte machen. Ein Round Table über Grafikdesign, E-Publishing und die ZfM-Produktion

Petra Loffler and Kathrin Peters, ZfM’s editors, talk to Lena Appenzeller (ZfM’s graphic artist) together with Janin Sack (an artist, graphic artist and publisher) and Paolo Caffoni (from the event space and publisher Archive Books). The conversation focuses on production processes (not least of all of ZfM) – on print and online publications and on the particularities of designing scholarly journals. It is an exploration of one’s own writing desk, workplace, and political commitment—the same commitment with which small publishers and collectives have realized concepts for design and artistic collaboration to create more than just a niche.

Seismic Losses Scenario for Cultural Promenade in Timisoara Capital of Culture 2021, Romania

Timisoara is a European city, located in the western part of Romania, in a seismic area, characterized by shallow earthquakes with most probable magnitude 6 Mw and intensity 7. Timisoara was selected to be the European Capital of Culture 2021, transforming the city into a centre of interest for cultural agenda. One of the major intentions of the city that was highlighted during the selection for the 2021 European Capital of Culture was to connect the visitors to the local community lifestyle, through a lot of outdoor events, where the participants will have to change to feel the real life on Timisoara’s streets and to interact with its citizens, especially in the historical urban areas, where the specific atmosphere was kept the most. In this context, there are expected many tourists to visit the city and many events are planned to occur in the historical zones. Along those historical zones, there was proposed a cultural promenade that will connect the most important touristic attractions of the city and the best places for outdoor cultural events. Taking into consideration the age of the buildings that will host events or that will be near the outdoor event spaces, appeared the problem of safety. In order to be able to secure the wellbeing of the visitors and Timisoara’s citizens and also the city’s most important buildings, there is mandatory to evaluate the current state of the buildings along the proposed cultural promenade and to determine the possible losses scenario in case of an earthquake occurrence. This paper presents seismic scenarios for different intensities and evaluates the possible losses in terms of human life, homes and jobs, architectural and historical values and of course economical losses. The knowledge represents the base of every action, so this study represents only the first part of a larger one that will propose interdisciplinary strategy for prevention and intervention in case of an earthquake occurrence.

Ecologically Sensitive Event Space in Urban Landscape

The paper describes the condition of public space in cities in the face of climate change. To provide social integration, cities must have an attractive public space that activates people. The starting point for the conducted research is Bernard Tschumi theory of „event cities”. According to Tschumi, architecture is a discourse about the spaces and events that take place in it. In this theory, the essence of space is to animate the movement and actions, which strengthens the social and political dimension of architecture. Today, we often encounter the crisis of urban space, which is unattractive, unhealthy and does not favour the activity of the inhabitants. Environmental changes have a significant impact on this fact. The aim of the research is to present the possibility of using architectural events in the process of improving the space quality and the microclimate prevailing in it. According to the research results, ecologically sensitive pavilions may play an important role in this context. Problems of water shortage, air pollution and temperature rise are taken in many pavilions in a practical way. Temporary pavilions become in this sense a field of scientific experiments, indicating the possibilities of using new proecological solutions in the city. The aim of the research is to classify this type of examples. The selected examples were divided due to their role, technologies used, as well as the relationship with city space. According to the research results, these objects can perform a number of functions in the urban space. They stimulate social relations, play an educational role, improve the climate in the city and make the surrounding space more attractive. An important common element of these facilities is the use of renewable energy and a zero energy balance. The presented examples lead to the conclusion that pavilions can play a significant role in improving the quality of contemporary urban space.

The use of PRO in adverse event identification during cancer therapy – choosing the right questions to ask

Background: Adequate and timely monitoring of adverse events to cancer treatment is from our view dependent on a suitable Patient Reported Outcome (PRO) tool developed for the specific patient population based on cytostatic drugs included in the treatment. Therefore, a systematic method for construction of PRO questionnaires including selection of the appropriate questions is needed.Purpose: The purpose of the present study was to develop and test a method of item selection for a PRO questionnaire to monitor adverse events in oncologic routine treatment of metastatic prostate cancer patients.Patient and methods: Documentation on common symptomatic adverse events for the three drugs was collected from five different sources: 1) FDA product summary information; 2) EMA product summary information; 3) phase 3 Randomized Controlled Trials (RCT) leading to drug approval; 4) audit of the electronic patient files focusing on the oncologist’s documentation of adverse events and 5) individual patient interview (n = 16) focusing on adverse events. The Patient Reported Outcome of Common Terminology Criteria for Adverse Events (PRO-CTCAE) was used as PRO item library. Selected symptoms were transformed into corresponding PRO-CTCAE questions. The questionnaire was tested by patients in a pilot test (n = 12). Patients for interviews and pilot testing were included by purposive sampling.Results: A method for constructing a PRO questionnaire was developed, and a questionnaire of 25 PRO-CTCAE symptoms with 46 questions including an open write-in space for additional adverse events was constructed and tested.Conclusion: This study demonstrates a systematic method to select questions on adverse events for a PRO questionnaire in a specific cancer population receiving oncologic treatment. The present study reveals that audit of patient files and patient interviews in our setting only add little to the information on adverse events obtained from FDA, EMA and RCT. The obtained questionnaire was found useful and acceptable by patients.