Location Of Person Research Articles

ПРИМЕНЕНИЕ ТЕХНОЛОГИИ BLUETOOTH LOW ENERGY ДЛЯ КОНТРОЛЯ ПЕРЕМЕЩЕНИЯ ЛЮДЕЙ В ПОМЕЩЕНИЯХ

Tracking the location of a person in a big country, a big city, and even an area has longbeen a reality. Thanks to satellites, it became possible to know exactly where a person is. However,such technologies are more intended for positioning in open areas, and their signal is not ableto overcome large reinforced concrete structures, as well as walls and ceilings in a building.This article proposes a solution to this problem, considers the system for controlling the movementof people in the premises. Such a system not only determines the position where a person is located,with an accuracy of half a meter, but also creates a database that displays the date, time andplace of a person’s discovery, as well as his identification, indicating who exactly was discovered.The system described in this article is very easy to understand and has a low cost. It works withthe ESP32 microcontroller and is based on Bluetooth Low Energy wireless data transfer technology.The ESP32 microcontroller acts as a signal scanner with the RSSI parameter. The receiveddata, namely RSSI and a unique identifier, which is aimed at determining the identity of a person,are sent to the ThingSpeak server, where the distance to the source, which is the smartphone, iscalculated, determining its location and recording movement. This uses methods to improve accuracy,such as the Fingerprint algorithm. In the entire room at the installation stage of the system,"fingerprints" are collected within the controlled area, reference RSSI values are determined atsuch control points, and it is on their basis that a person's location is determined. Also, this materialdiscusses the solution of the problem of identifying and controlling the approach of people toa protected object and the organization of a system for collecting and storing statistics on visitinga controlled object.

Hybrid-attention and frame difference enhanced network for micro-video venue recognition

Many micro-video related applications, such as personalized location recommendation and micro-video verification, can be benefited greatly from the venue information. Most existing works focus on integrating the information from multi-modal for exact venue category recognition. It is important to make full use of the information from different modalities. However, the performance may be limited by the lacked acoustic modality or textual descriptions in uploaded micro-videos. Therefore, in this paper visual modality is explored as the only modality according to its rich and indispensable semantic information. To this end, a hybrid-attention and frame difference enhanced network (HAFDN) is proposed to generate the comprehensive venue representation. Such network mainly contains two parallel branches: content and motion branches. Specifically, in the content branch, a domain-adaptive CNN model combined with temporal shift module (TSM) is employed to extract discriminative visual features. Then, a novel hybrid attention module (HAM) is introduced to enhance extracted features via three attention mechanisms. In HAM, channel attention, local and global spatial attention mechanisms are used to capture salient visual information from different views. In addition, convolutional Long Short-Term Memory (convLSTM) is enforced after HAM to better encode the long spatial-temporal dependency. A difference-enhanced module parallel with HAM is devised to learn the content variations among adjacent frames, which is usually ignored in prior works. Moreover, in the motion branch, 3D-CNNs and LSTM are used to capture movement variation as a supplement of content branch in a different form. Finally, the features from two branches are fused to generate robust video-level representations for predicting venue categories. Extensive experimental results on public datasets verify the effectiveness of the proposed micro-video venue recognition scheme. The source code is available at https://github.com/hs8945/HAFDN.

Development and psychometric properties of a short version of the Patient Continuity of Care Questionnaire

Abstract Funding Acknowledgements Type of funding sources: Private grant(s) and/or Sponsorship. Main funding source(s): Medical Research Council of Southeast Sweden. Center for Clinical Research Sörmland/Uppsala University Introduction Hundreds of thousands of persons are discharged from hospitalisation due to cardiac diseases every year in Europe. Follow-up after hospitalisation due to cardiac diseases usually occurs with another healthcare provider, e.g., in primary care, which is a challenge for the coordination and continuity of care. Continuity of care after hospitalisation is an essential indicator of the quality of care, and international reports highlight the importance of improving continuity of care. Patients’ perception of continuity of care can be evaluated using the Patient Continuity of Care Questionnaire (PCCQ-27 items). However, the length of the questionnaire represents a barrier to completion, and, therefore, we aimed to develop and psychometrically evaluate a short version of the PCCQ. Method This was a psychometric validation study. Content validity was first evaluated among user groups, including patients (n=7), health care professionals (n=15), and researchers (n=7). Then, based on content validity and conceptual discussions in the research group, 12 items were selected for the short version. Data were collected from patients six weeks after hospitalisation due to angina, atrial fibrillation, acute myocardial infarction, or heart failure using a consecutive sampling procedure. Measurement properties were evaluated with the Rasch Measurement Model. Results A total of 1000 patients were included (66% males, mean age 72 SD=10). The 12 items presented satisfactory overall model fit and a reliability of 0.79. Three items did not fit the model as they presented fit residuals >±2.5. The items presenting misfit were: item 12 (information on treatment after discharge), item 28 (personnel had knowledge on medical situation) and item 29 (confidence in personnel) (Table 1). Four items presented response dependence; a patients answer on item 2 (information on prognosis) seemed to depend on how the patient had answered item 1 (information on diagnosis). Also, items 28 and 29 seemed to be response dependent. Each pair of response-dependent items was combined into a larger subtest item to evaluate any impact on measurement properties. However, the changes in person location, person fit, and PSI were negligible, and no effect on the measurement properties or reliability was observed. Further, no evidence of multidimensionality was found, and a total score can be calculated. The Rasch measurement model found the thresholds between the first two response options ‘strongly disagree’ and ‘somewhat disagree’ disordered in all items (Table 1). However, we found that amending the response options did not alter the prior results regarding response dependence, dimensionality, or reliability but improved individual fit residual for items 12, 27 and 28. Conclusion The PCCQ-12 is a short, unidimensional and psychometrically sound questionnaire ready to be used to measure the perception of continuity of care after hospitalisation.

A location-based privacy-preserving oblivious sharing scheme for indoor navigation

In recent years, with the rapid development of wireless communication technology and mobile devices, etc., indoor localization and navigation using WiFi sensing are increasingly being widely employed in life. On this basis, various applications of location-based services have been rapidly developed. However, when users enjoy the location query service of LBS providers, there is a risk of exposing personal information and location privacy simultaneously. In particular, the sensitive information about users based on their location privacy can be inferred by malicious users. Therefore, how to implement location hiding, query privacy protection and query result feedback at the same time is one of the crucial issues of LBS privacy protection. A novel oblivious data sharing scheme employing the designed 1-out-of-n oblivious transfer protocol is proposed to achieve an efficient location-based service for users while effectively hiding location coordinates and protecting the privacy of users and servers. In addition, once a user accesses the same keyword several times, the server is bound to be able to master the accessed frequency of keywords. For this reason, the string length-based transformation algorithm based on private information retrieval is designed and added as a part of OT protocol, which effectively reduces the communication overhead and ensures the privacy of required keywords. The security and performance analysis indicate that the proposed protocol can be instantiated in indoor navigation with high security and efficiency.

Numerical Investigation on the Droplet Dispersion inside a Bus and the Infection Risk Prediction

COVID-19 can be easily transmitted to passengers by inhaling exhaled droplets from the infected person in a bus. Therefore, studying droplet dispersion would provide further insight into the mechanism of virus transmission and predict the risk of infection among passengers on a bus. In this research, a bus equipped with air-conditioning was employed as the research object. To determine the dispersion path, concentration distribution, and escape time of the droplets, computational fluid dynamic (CFD) was applied to simulate the flow field and the droplets’ dispersion. The effect of the air supply rate, the location of vents, and the location of infected persons on the dispersion were discussed. Based on the distribution of droplets in the cabin calculated by CFD, a superposition method was used to determine the number of virus particles inhaled by every individual passenger over a four-hour journey. Then, infection risk was assessed by the Wells-Riley equation for all the passengers in the cabin after the whole journey. The results show that the distribution of droplets in the cabin is greatly influenced by the location of the infected person, and the airflow pattern is highly associated with the air supply rate and the location of vents. The infection risk of passengers located at the droplet dispersion path and the distance from the infected persons less than 2.2 m is over 10%. The increase in the air supply rate could speed up the spread of the droplets but at the same time, it could reduce the infection risk.

PrivyTo: A privacy‐preserving location‐sharing platform

AbstractConcern over the privacy of our personal location is at an all‐time high, yet the desire to share our lives with friends, family, and the public persists. Current methods and applications for sharing location content with the range of people in our lives are sorely lacking. Application users are often limited to sharing a single spatial resolution with all individuals, regardless of relation, and with little control over how this content is shared. Processes for sharing typically involve allowing a for‐profit company access to one’s location before it can be transmitted to the intended recipient. In this work we propose a set of design goals and a design pattern for sharing personal location information that are realized through a prototype mobile web application. Our approach is built on the novel idea of obfuscated and encrypted location views, and promotes a uniquely open method for sharing. The intention of this article is to demonstrate that location sharing need not require one to expose private location information to third parties, and that methods exist to put an individual back in control of their content.

Deiksis dalam Film Bumi dan Manusia Karya Hanung Bramantyo

Deixis is a pragmatic study that examines the relationship between the structure of language and the environment in which the language is used. The phenomenon of deixis or use is most often seen in everyday conversation in the form of verbal language. Deixis is also found in the conversation of characters or figures in literary works such as films. The study entitled "Deixis in the Film Bumi dan Manusia by Hanung Bramantyo" examines the use of deixis in the film directed by Hanung Bramantyo with the title "Earth and Man". Persona, time, place, social, and discourse deixis are the five categories of deixis studied in this study. Researchers used analytical methods in the form of pragmatics with qualitative techniques to analyze the data that had been collected. The data used in this study include fragments of speech from film conversations, both words and phrases containing deixis, including personal deixis, time deixis, location deixis, social deixis, and discourse deixis. Watching movies, capturing data, recognizing, categorizing, analyzing, formulating, and presenting data are the stages of analyzing in this research. Data analysis illustrates that the film directed by Hanung Bramantyo with the title "Bumi dan Manusia" has a deixis in the form of person, time, place, social, and discourse.

A Systematic Review of Objective Factors Influencing Behavior in Public Open Spaces.

As a significant part of outdoor built-environment, public open spaces are closely associated with people's daily lives. Studies of outdoor behavior in these spaces can shed light on users' environmental perceptions and contribute to the promotion of physiological and psychological health. Many recent studies are case studies focused where observations, surveys and interviews have been conducted to understand the factors influencing people's behavior on one or few sites or city environments. There have been few reviews related to this topic, and none have been based on the systematic understanding of influencing factors. This paper presents a systematic review of interactions between behavior and the built environment in public open spaces, and highlights the impacts of diverse and objective influencing factors. Followed the rules of PRISMA method (Preferred Reporting Items for Systematic Reviews and Meta-Analyses), 109 papers published in 2000–2021 were selected and reviewed. The distribution of the studied interactions is analyzed, and the impacts of four distinct factors: personal background, location and context, environmental component, and climate stimuli, are extracted, categorized, and specified. Moreover, outdoor health benefits are discussed based on which, crucial factors that require emphasis after the outbreak of COVID-19 are identified. Throughout this paper, behavioral influencing processes, including objective influencing factors, subjective feedback, and the relationships involved, are considered to provide a comprehensive picture. With the robust classification of existing factors, architects, urban designers, policy makers and fellow researches could be easier to get a more comprehensive trend from the past. This paper also provides guidance for future research, especially given that COVID-19 has created huge changes to outdoor needs and customary behavior.Systematic Review Registration: http://www.prisma-statement.org/.

Named Entity Recognition for Nepali: Data Sets and Algorithms

Named Entity Recognition (NER) task involves locating Named Entities (NEs) in free text and classifying them into predefined categories such as Person Name, Location and Organization. Although the NER task has been studied widely in resource-rich languages, it has not been studied thoroughly for Nepali, a resource-poor language. In this paper, we present the systematic study of NER for Nepali language with clear Annotation Guidelines obtaining high inter-annotator agreements. The annotation produces EverestNER, the largest human annotated NER data set for Nepali which has 24,587 entities in total. It has 308,353 tokens corresponding to 15,798 sentences which are annotated into five categories: Person, Location, Organization, Date and Event. We split the EverestNER data set into EverestNER-train and EverestNER-test. These standard data sets, therefore, become the first benchmark data sets for evaluating Nepali NER systems. We release the EverestNER benchmark data sets to facilitate the research in Nepali language at https://github.com/nowalab/everest-ner. We report a comprehensive evaluation of state-of-the-art Neural and Transformer models using these data sets. We also discuss the remaining challenges for discovering NEs for Nepali.

‘Informed’ consent in popular location based services and digital sovereignty

ABSTRACT In many countries, informed consent is required before a service provider can collect personal data from a user. For location-based services (LBS), this applies in particular to personal location information, which can enable deep inferences about a person. In this paper, we present a systematic analysis of how informed consent for the collection of personal location information is obtained in 40 popular LBS on each of the two largest app stores. Two independent raters assessed the content, structure and design of the dialogues shown by apps to obtain consent from users. Based on their assessment, we identified common approaches used across and within different app categories and platforms, including the frequent use of ‘dark patterns’. We highlight key issues arising from these common designs, discuss specific gaps in the procedure of obtaining informed consent and propose improvements to that procedure. In addition, we consider current practice in the context of enabling digital sovereignty with respect to personal location information. Our findings can shape the design and evaluation of informed consent procedures for future LBS in research and practice.

Growing Up White Saviors

In an enduring moment of pandemic, racial reckoning, and grave economic inequalities, the question of how white people with privilege most effectively and ethically engage momentous social problems remains. I inquire whether those who have participated in the white savior complex earlier in their lives later commit to more critical, reflexive, and collective forms of social justice organizing. Based on 21 interviews and a survey with people who had formerly participated in advocacy pertaining to the protection of children affected by the Lord’s Resistance Army (LRA) war between 2008 and 2010, this work explores what enables the white savior complex, whether white saviors can change, and if so, what facilitates transformation. Ultimately, I argue that the white savior complex is about being extraordinary. It is part of a pursuit to find purpose. It is about being right and good—and it is about reaching out to assist another while avoiding examination of both oneself and the conditions that enable the suffering in the first place. I found that people who have been engaged in the white savior complex can and do change. Yet, growing up and transforming from the white savior complex is not inevitable. It takes time, new social networks, and education that cultivates critical consciousness. I conclude by naming antidotes to the white savior complex: efforts which place lineage, humility, and curiosity at the center. Such efforts incorporate accountability and critical feedback and invoke concerted reflection on structural determination as well as personal social location identities and motivations.

Human Rights as the Foundation for Ethical Practice of Law

This Article is a reflection on the importance and foundational role human rights play in the Ethics and Code of Conduct of the legal profession generally and specifically as it relates to the Liberian National Bar Association. It submits that human rights represent the minimum standards with regard to decent treatment of human beings anywhere, notwithstanding the location or culture of persons involved. As a result this makes human right principles an indispensable reference point and guide when formulating rules of professional ethics and code of conduct. It contends that this accounts why ethics should promote human rights and respect to human rights principles should be the basis for any ethical codes. It concludes that, this being the case, any code of conduct that violates human rights, such code has ab initio lost its legitimacy and moral basis to be code of conduct.

Location-privacy preserving partial nearby friends querying in urban areas

This work studies the location-privacy preserving proximity querying in the context of proximity-based services (PBSs), a special kind of location-based services (LBSs). The users register with the trusted PBS provider and specify their own personalized location privacy profile to be enforced against the curious friends (other registered users). Due to the urban area constraint, the user mobility is only on the city road network which is modeled as a weighted directed graph. The users share their own precise locations with the PBS provider and also query the nearby friends, the metric of which is defined on the shortest path on the graph. The proposed location privacy model ensures the location anonymity of the friends on the graph. To this end, two anonymity models, called weak location k-anonymity and strong location k-anonymity, are introduced to protect against the identified consecutive attack scenarios. The attack scenarios model the belief of the attacker (the query issuer) on the whereabouts of the friends. The PBS provider simulates the belief of each attacker on every users’ whereabouts and suppresses some friends from the query result to ensure the location anonymity of each and every user at all times. Effective and efficient algorithms, needing no cryptographic protocols, have been developed to provide weak/strong location k-anonymity. An extensive experimental evaluation, mainly addressing the issues of privacy/utility tradeoff and runtime efficiency, on two real graphs with a simulated mobility is presented.

Care4HIP: An Embedded System Design for Discerning Hear-Impaired People in Traffic

Embedded systems are designed for many different applications including navigation, thief warning, smart home, tracking. We designed an embedded system, Care4HIP, Care for Hearing Impaired People, which presents a solution for discerning the hear-impaired people in traffic. Our solution aims that drivers will be able to notice the hear-impaired people. Care4HIP calculates the locational information of these people which close to the vehicle and determines the direction of these people with respect to the vehicle. Location information refers to the latitude and longitude data of each person's location. The proposed system involves server, mobile and embedded system based applications. We think that Care4HIP offers an original and practical solution with minimal overhead for hear-impaired people.

Reading Together

This teaching reflection examines how “reading together” was fostered in synchronous and asynchronous online environments in two undergraduate creative writing courses through participation in a virtual book club. In the first course, prior to the pandemic, students had the option of meeting in person or via Zoom while we read Daisy Johnson’s Oedipus Rex retelling, Everything Under, for the book club. In the second course, during the pandemic, students had virtual synchronous and written participation choices while we read together Jessica Anthony’s political satire, Enter the Aardvark, with the author visiting in two sessions. In both cases, the goals were consistent: to get students reading as writers; to foster intrinsic motivation through personal choice; and to satisfy students’ desire for community connection while still accommodating personal schedules and geographical location. A virtual book club lets students read on their own schedule and in their own space, but still share their experience and observations with peers over greater distances (and time zones) than would otherwise be possible.

Airborne Transmission of SARS-CoV-2 Delta Variant within Tightly Monitored Isolation Facility, New Zealand (Aotearoa).

In New Zealand, international arrivals are quarantined and undergo severe acute respiratory syndrome coronavirus 2 screening; those who test positive are transferred to a managed isolation facility (MIF). Solo traveler A and person E from a 5-person travel group (BCDEF) tested positive. After transfer to the MIF, person A and group BCDEF occupied rooms >2 meters apart across a corridor. Persons B, C, and D subsequently tested positive; viral sequences matched A and were distinct from E. The MIF was the only shared location of persons A and B, C, and D, and they had no direct contact. Security camera footage revealed 4 brief episodes of simultaneous door opening during person A’s infectious period. This public health investigation demonstrates transmission from A to B, C, and D while in the MIF, with airborne transmission the most plausible explanation. These findings are of global importance for coronavirus disease public health interventions and infection control practices.

Multi-vent module-based adaptive ventilation to reduce cross-contamination among indoor occupants

Infectious respiratory diseases are known to have high levels of airborne transmissibility. However, traditional ventilation methods based on perfect mixing often lead to the diffusion of airborne pathogens. A ventilation method that can reduce air mixing is necessary. The ventilation system should also be able to adapt to changes in the use scenario of a given room. For this reason, a new type of ventilation method, referred to as multi-vent module-based adaptive ventilation (MAV), is proposed, and its performance in contaminant diffusion control is evaluated in this study. Computational fluid dynamics (CFD) is applied to investigate the contaminant distribution in a two-desk office with MAV. Tracer gas (CO2) is used to simulate coughed contaminants from an infected person. For three different MAV air distributions (vertical, parallel, and cross mode) and traditional mixing ventilation (MV), the contaminant concentration distributions and contaminant variations in the oronasal areas of the occupants are compared. The results show that MAV results in a smaller contaminant diffusion area and lower contaminant diffusion speed. Furthermore, MAV can reduce the peak contaminant concentrations at the oronasal areas of the occupants to 12% of that of MV. The levels of performance of the three MAV modes are different because of the different airflow patterns that they create. For the tested location of the infected person, the vertical mode has the best performance. The average cumulative inhalation of contaminants in the vertical mode is 23.7% lower than that in the cross mode and 36.5% lower than that in the parallel mode.

A Road Truncation-Based Location Privacy-Preserving Method against Side-Weight Inference Attack

Taking advantage of precise positioning technology, location-based service (LBS) has brought a lot of convenience to people’s daily life and made the city smarter. However, the LBS applications also bring some challenges to personal location privacy protection. In order to obtain services from LBS providers, users have to upload their queries including sensitive information, such as identities and locations. This information may be leaked out by the LBS providers or even eavesdropped on by malicious adversaries, which may cause privacy leakage. To tackle this problem, many solutions have been investigated under the assumption that users are uniformly distributed. However, the users are not always uniformly distributed in real-world situations. For a side-weight inference attack, the adversary would infer that the target user is more likely to belong to the road section with more users, resulting in performance deterioration. In this paper, we investigate the issue of location privacy preservation against side-weight inference attack for non-uniform distributed road network. Meanwhile, we consider the cost function of LBS and formulate the object as a mixed integer programming problem. Then, we propose a road truncation-based scheme to protect location privacy. The road section with high user density is designed to be truncated. Finally, simulation results show that our scheme meets the demand for privacy protection at a low cost. As a result, our scheme is proven to protect users’ location privacy effectively and efficiently.

Evaluation of Varicose Vein Prediction and Accumulation Reduction Using Artificial Pressure Generation

In this modern world, people are growing more sedentary. This is indeed a phrase that relates to the decrease in physical activity. This decreases the overall oxygen concentration within their bodies. As a result, their artery cells are stimulated, resulting in spider veins. This mostly affects our lower limbs, but it can damage any part of our body. This condition, called "spider vein" or "varicose vein," develops whenever a vascular artery clogs, and it is often highly uncomfortable. Depending on the outcome of the investigation, the data obtained is employed to construct a predetermined database. The pre-configured information serves as a prepared lower limit. This component would analyse the information about a person's location. Seating, knee flexion, and motions throughout the duration are all information which should be examined. This accumulation data can also be processed in the Arduinomicro-controller (98dB) with the use of an EMG CMMR electrode. It is a non-invasive varicose veins diagnostic and treatment procedure that depends upon artificial vibration production. This device will contribute to both a cost effective and user friendly, there the efficiency of device compared with the several other therapeutic approaches. Patients caused by varicose veins can use this device that is healthier than the most of other clinical treatments.

Розыск лиц, совершивших преступления против жизни и здоровья, уклоняющихся от органов следствия, дознания и суда

The article examines the specific set of operational search and tactical forensic methods of searching for persons who have committed crimes. The methods are arranged in line with information blocks that can be easily entered into computer databases. The analysis of group rules and techniques typically used for specific groups of wanted persons is the content of the current stage of research of investigative actions. One of the central ideas of the article is the provision that the international search is one of the effective measures for identifying and detaining wanted persons. However, this measure has a number of disadvantages: a limited number of participating countries, peculiarities of the legislation of the participating countries, the dual or other citizenship of the wanted person, limited international procedural terms for the provision of documents confirming the search, and other subtleties of international law. These factors often impede the achievement of the final goal of the search (transportation of the wanted person to the initiator of the search). The relevance of finding a balance in the correlation of public and tacit methods used in the effective establishment of the wanted person's location, regardless of the state, within the established procedure for declaring persons wanted is emphasized. In terms of content, the presented material is an algorithm for the search for persons who have committed crimes against life and health, and evade the investigation, inquiry, and court bodies. The algorithm is based on unique operational search situations.