Open Access. Powered by Scholars. Published by Universities.®

Science and Technology Studies Commons™

Open Access. Powered by Scholars. Published by Universities.®

San Jose State University

Discipline
Keyword
Publication Year
Publication
Publication Type

Articles 1 - 30 of 35

Full-Text Articles in Science and Technology Studies

Insights For The Future Of Car Rental And Ridesharing: Driving Behavior Across Different Levels Of Automation, Pranav Meda, Aubrey Victoria Contreras, Wei-Hsiang Lo, Gaojian Huang, Yue Luo Feb 2025

Insights For The Future Of Car Rental And Ridesharing: Driving Behavior Across Different Levels Of Automation, Pranav Meda, Aubrey Victoria Contreras, Wei-Hsiang Lo, Gaojian Huang, Yue Luo

Mineta Transportation Institute

Autonomous vehicles are reshaping the car rental and ridesharing industries, potentially leading to a unified model of on-demand transportation suitable for both uncommon (e.g., business trips) and daily commuting. An exploratory study of human behavior towards autonomous vehicles can uncover the challenges and opportunities inherent in different levels of vehicle automation. This study aims to (a) identify behavioral differences in drivers operating vehicles at various levels of automation and (b) explore how these behaviors vary with different assistance feature styles, specifically between risky and conservative modes. Human-subject experiments were conducted among twelve participants (aged 21 to 29, including four women) …


Book Review : The Digital Environment: How We Live, Learn, Work, And Play Now By Pablo J. Boczkowski And Eugenia Mitchelstein, Devi Swamy Dec 2024

Book Review : The Digital Environment: How We Live, Learn, Work, And Play Now By Pablo J. Boczkowski And Eugenia Mitchelstein, Devi Swamy

School of Information Student Research Journal

The Digital Environment: How We Live, Learn, Work, and Play Now by Pablo J. Boczkowski and Eugenia Mitchelstein examines how digital technologies shape modern life, presenting the digital environment as a distinct sphere alongside natural and urban environments. Drawing on expert interviews, the authors explore its defining features—totality, duality, conflict, and indeterminacy—and their impact on society. The book highlights both the potential of digital tools to perpetuate inequities and their capacity to promote equity, offering insights particularly valuable to library and information science professionals.


Artificial Intelligence For Pedestrian And Bicyclist Safety: Using Ai To Detect Near-Miss Collisions, Mohammad Pourhomayoun Oct 2024

Artificial Intelligence For Pedestrian And Bicyclist Safety: Using Ai To Detect Near-Miss Collisions, Mohammad Pourhomayoun

Mineta Transportation Institute

Near-Miss Collisions are events that, with a slight change in position or timing, could have resulted in a collision, which could have caused severe injury or property damage. Understanding near-miss collisions can help identify risks and potentially improve road safety. In this project, we developed an effective end-to-end system based on advanced artificial intelligence (AI) models and computer vision algorithms to detect and report near-miss collisions as an important indicator to identify and measure safety risks, especially in specific circumstances such as a right turn on a red light. The main objective is to improve the safety of pedestrians and …


Examining Transit Service Improvements With Internet-Of-Things (Iot): A Disparity Analysis, Shailesh Chandra, Robert Valencia, Vamsi Krishna Oruganti Jun 2024

Examining Transit Service Improvements With Internet-Of-Things (Iot): A Disparity Analysis, Shailesh Chandra, Robert Valencia, Vamsi Krishna Oruganti

Mineta Transportation Institute

Literature shows that poor service reliability of transit often leads to uncertain waiting times at transit stations, diminishing their popularity and usage, and this particularly affects low-income populations more likely to rely heavily on transit. This research delves into an in-depth analysis of the inequality assessment of the Los Angeles (LA) Metro Rail lines, with a particular focus on evaluating the potential impacts of integrating Internet of Things (IoT) technology. This study investigates how IoT could influence service connectivity, accessibility, and the existing disparities in transit services. The primary goal of this study is to assess how the implementation of …


Traffic Sign Extraction From Mobile Lidar Point Cloud, Yushin Ahn, Riadh Munjy, Ziyuan Li May 2024

Traffic Sign Extraction From Mobile Lidar Point Cloud, Yushin Ahn, Riadh Munjy, Ziyuan Li

Mineta Transportation Institute

The extraction of traffic signs from Mobile Light Detection and Ranging (LiDAR) point cloud data has become a focal point in transportation research due to the increasing integration of LiDAR technologies. LiDAR, a remote sensing technology, captures detailed three-dimensional point cloud data, offering a comprehensive view of the surrounding environment. Mobile LiDAR systems mounted on vehicles enable efficient data collection, particularly for large-scale road networks. This study aims to develop and refine techniques for extracting traffic signs from Mobile LiDAR point cloud data, essential for enhancing road safety, navigation systems, and intelligent transportation solutions. By leveraging LiDAR technology, new possibilities …


(Not) Accessing The Castle: Grappling With Secrecy In Research On Security Practices, Lilly P. Muller, Natalie Welfens Aug 2023

(Not) Accessing The Castle: Grappling With Secrecy In Research On Security Practices, Lilly P. Muller, Natalie Welfens

Secrecy and Society

This article discusses how to deal with secrecy and limited access in ethnographically inspired research of security fields. Drawing inspiration from recent debates about secrecy in Critical Security Research and from Franz Kafka’s The Castle, we propose to treat access limitations and the secrecy we encounter as methodological tools that provide insights into social relations and power structures of security fields. We develop the argument in two steps. First, we argue for a more fine-grained taxonomy of secrecy, that allows to distinguish between mystery, concealment and the relational dimension of secrecy. Second, we apply the taxonomy to our respective …


Technologies And Time Tempers: How Things Mediate A State’S (Cyber Vulnerability) Disclosure Practices, Clare Stevens Aug 2023

Technologies And Time Tempers: How Things Mediate A State’S (Cyber Vulnerability) Disclosure Practices, Clare Stevens

Secrecy and Society

State secrecy and disclosure practices are often treated as processes of intentional and strategic human agency, and as forms of political time management (Bok 1982; Horn 2011). Through a critical analysis of the United States government’s disclosure practices in the context of their discourse around the cybersecurity “Vulnerabilities Equities Process” (VEP), this paper will present a two-fold argument against these conventional treatments of secrecy and disclosure. While government secrecy and disclosure can certainly be understood as a form of (agential) timing, orientation and control (Hom 2018), this paper will also show how government secrecy practices are emergent at the point …


Carceral Data: The Limits Of Transparency-As-Accountability In Prison Risk Data, Becka Hudson, Tomas Percival Aug 2023

Carceral Data: The Limits Of Transparency-As-Accountability In Prison Risk Data, Becka Hudson, Tomas Percival

Secrecy and Society

Prison data collection is a labyrinthine infrastructure. This article engages with debates around the political potentials and limitations of transparency as a form of “accountability,” specifically as it relates to carceral management and data gathering. We examine the use of OASys, a widely used risk assessment tool in the British prison system, in order to demonstrate how transparency operates as a means of legitimating prison data collection and ensuing penal management. Prisoner options to resist their file, or “data double,” in this context are considered and the decisive role of OASys as an immediately operationalized technical structure is outlined. We …


Introduction To The Special Issue On Secrecy And Technologies, Clare Stevens, Sam Forsythe Aug 2023

Introduction To The Special Issue On Secrecy And Technologies, Clare Stevens, Sam Forsythe

Secrecy and Society

Many scholars have treated the inscrutability of technologies, secrecy, and other unknowns as moral and ethical challenges that can be resolved through transparency and openness. This paper, and the special issue it introduces, instead wants to explore how we can understand the productive, strategic but also emancipatory potential of secrecy and ignorance in the development of security and technologies. This paper argues that rather than just being mediums or passive substrates, technologies are making a difference to how secrecy, disclosure, and transparency work. This special issue will show how technologies and time mediate secrecy and disclosure, and vice versa. This …


Chatgpt As Metamorphosis Designer For The Future Of Artificial Intelligence (Ai): A Conceptual Investigation, Amarjit Kumar Singh (Library Assistant), Dr. Pankaj Mathur (Deputy Librarian) Mar 2023

Chatgpt As Metamorphosis Designer For The Future Of Artificial Intelligence (Ai): A Conceptual Investigation, Amarjit Kumar Singh (Library Assistant), Dr. Pankaj Mathur (Deputy Librarian)

Library Philosophy and Practice (e-journal)

Abstract

Purpose: The purpose of this research paper is to explore ChatGPT’s potential as an innovative designer tool for the future development of artificial intelligence. Specifically, this conceptual investigation aims to analyze ChatGPT’s capabilities as a tool for designing and developing near about human intelligent systems for futuristic used and developed in the field of Artificial Intelligence (AI). Also with the helps of this paper, researchers are analyzed the strengths and weaknesses of ChatGPT as a tool, and identify possible areas for improvement in its development and implementation. This investigation focused on the various features and functions of ChatGPT that …


Breaking The Barriers: A Phenomenological Study Of Women’S Non-Governmental Organisations’ Adoption Of Social Media, Muhammad Kabir Abubakar, Patricia Neo Mooko Nov 2022

Breaking The Barriers: A Phenomenological Study Of Women’S Non-Governmental Organisations’ Adoption Of Social Media, Muhammad Kabir Abubakar, Patricia Neo Mooko

Library Philosophy and Practice (e-journal)

Organizations now frequently use social media as a tool for communication and information sharing. Although many studies have examined the various context-specific barriers to technology adoption in organizations, few of them have a direct bearing on the particular barriers to social media adoption. Organizations can use social media for their activities with the help of understanding the adoption barriers. Investigating the most important impediments to social media adoption in women’s non-governmental organisations (WNGOs) in North-West Nigeria is the goal of this study. The study used a phenomenological approach-based qualitative research design. Semi-structured interviews were used to gather data from ten …


Use Of Whatsapp Technology In Library Services: Case Study Of National Defence University Library, Islamabad, Pakistan, Abid Hussain Mar 2022

Use Of Whatsapp Technology In Library Services: Case Study Of National Defence University Library, Islamabad, Pakistan, Abid Hussain

Library Philosophy and Practice (e-journal)

Abstract

Purpose

This study aimed to investigate the interest and use of WhatsApp technology among the library users of National Defence University Pakistan.

Design/methodology/approach

A questionnaire in google forms was created shared with the students of five departments of National Defence University Pakistan via email. The data were tabulated and analyzed using SPSS 22 for this paper.

Findings

This study revealed that WhatsApp is a robust and state of the art technology that could be embedded with digital library services to approach the library's patrons. This technology will help the library users getting quality services. Some technical and human resource …


Barriers For Library And Information Science Researchers From Developing Countries: What The “Library Philosophy And Practice Phenomenon” Tells Us, Brady Lund Oct 2021

Barriers For Library And Information Science Researchers From Developing Countries: What The “Library Philosophy And Practice Phenomenon” Tells Us, Brady Lund

Library Philosophy and Practice (e-journal)

This short commentary introduces and discusses the “Library Philosophy and Practice (LPP) Phenomenon,” wherein a scholarly journal published in a developed country has an extremely large number of authors from developing countries, relative to the typical journal. Elements of journals that fit the LPP phenomenon are discussed, as well as what this phenomenon says about barriers to scholarly publishing for researchers from developing nations. Implications for journals that lack diverse authorship from developing nations are listed. This phenomenon may be studied in other disciplines to further illuminate divides in the scholarly realm.


Undergraduate Students’ Use Of Electronic Resources In Academic Libraries In Selected Universities In Nigeria, Williams Nwagwu Oct 2021

Undergraduate Students’ Use Of Electronic Resources In Academic Libraries In Selected Universities In Nigeria, Williams Nwagwu

Library Philosophy and Practice (e-journal)

The objective of this study is to investigate the factors influencing the use of electronic resources by undergraduate students in academic libraries in selected Universities in Oyo State, Nigeria. Data was collected from 352 undergraduate students, 51.42% females and 48.58% males, from three universities in Southwest Nigeria. Data was analysed using binary logistic regression to understand the odds that favour use or non-use of the resources. The model successfully distinguished between the types of electronic resources and use non-use of the e-resources, and only three of the ten variables namely e-books, reference books and reference database made unique statistically significant …


“Pick A Card, Any Card”: Learning To Deceive And Conceal – With Care, Brian Rappert Jan 2021

“Pick A Card, Any Card”: Learning To Deceive And Conceal – With Care, Brian Rappert

Secrecy and Society

Because of the asymmetries in knowledge regarding the underlying hidden mechanisms as well as because of the importance of intentional deception, entertainment magic is often presented as an exercise in power, manipulation, and control. This article challenges such portrayals and through doing so common presumptions about how secrets are kept. It does so through recounting the experiences of the author as a beginner learning a craft. Regard for the choices and tensions associated with the accomplishment of mutually recognized deception in entertainment magic are marshalled to consider how it involves ‘reciprocal action’ between the audience and the performer. Attending to …


Teaching Trade Secret Management With Threshold Concepts, Haakon Thue Lie, Leif Martin Hokstad, Donal O'Connell Jan 2021

Teaching Trade Secret Management With Threshold Concepts, Haakon Thue Lie, Leif Martin Hokstad, Donal O'Connell

Secrecy and Society

Trade secret management (TSM is an emerging field of research. Teaching trade secret management requires the inclusion of several challenging topics, such as how firms use secrets in open innovation and collaboration. The threshold concepts framework is an educational lens well suited for teaching subjects such as TSM that are transformative and troublesome. We identify four such areas in trade secret management and discuss how threshold concepts can be a useful framework for teaching. We then present an outline of a curriculum suited for master’s programs and training of intellectual property (IP) managers. Our main contribution is to fields of …


Technology Acceptance Model And Academic Performance Of Postgraduate Students: The Moderating Role Of Academic Self-Efficacy, Muhammad Asif Munir Dr., Pro. Dr. Ghulam Shabir Dr., Shahbaz Sharif Mr. Jan 2021

Technology Acceptance Model And Academic Performance Of Postgraduate Students: The Moderating Role Of Academic Self-Efficacy, Muhammad Asif Munir Dr., Pro. Dr. Ghulam Shabir Dr., Shahbaz Sharif Mr.

Library Philosophy and Practice (e-journal)

Different models and theories have been tested in educational institutions to predict academic performance of the students. With the development of the technology and the advancement of communication channels, this study explores the impact of the usage of technology on student’ academic performance. For this purpose, the study aims at hiring technology acceptance model (TAM) to test the effect of the usage of social media on academic performance. TAM-core variables are comprised of five variables including perceived ease of use of social media, perceived usefulness of social media, intention to use of social media, and actual use of social media. …


A Bibliometric Analysis Of Online Extremism Detection, Mayur Gaikwad, Swati Ahirrao, Shraddha Pankaj Phansalkar, Ketan Kotecha Oct 2020

A Bibliometric Analysis Of Online Extremism Detection, Mayur Gaikwad, Swati Ahirrao, Shraddha Pankaj Phansalkar, Ketan Kotecha

Library Philosophy and Practice (e-journal)

The Internet has become an essential part of modern communication. People are sharing ideas, thoughts, and beliefs easily, using social media. This sharing of ideas has raised a big problem like the spread of the radicalized extremist ideas. The various extremist organizations use the social media as a propaganda tool. The extremist organizations actively radicalize and recruit youths by sharing inciting material on social media. Extremist organizations use social media to influence people to carry out lone-wolf attacks. Social media platforms employ various strategies to identify and remove the extremist content. But due to the sheer amount of data and …


Effect Of Social Media Addiction On Reading Culture: A Study Of Nigerian Students, Isaac E. Anyira, Obiora Kingsley Udem Aug 2020

Effect Of Social Media Addiction On Reading Culture: A Study Of Nigerian Students, Isaac E. Anyira, Obiora Kingsley Udem

Library Philosophy and Practice (e-journal)

The main purpose of this study is to examine the effects of social media addiction on reading culture of Nigerian students in higher institutions of learning. An online survey was sent to 1500 students of higher institutions in Nigeria during the Lockdown necessitated by the outbreak of the dreaded Corona Virus (Covid-19) Pandemic. A total of 1300 questionnaires were completed and returned. This implies 86.7% return rate. Data was analyzed using graphical charts. The findings of the study showed that social media mostly used by student include Facebook, followed by WhatsApp, YouTube, Pinterest, Twitter, Instagram, Wordpress, Snapchat, Reddit, respectively; while, …


Awareness And Health Impacts Of Information Overload And Ict Usage In South Africa, Baldwin Obareng Manoko, Mmafani Serote Mrs, Oludele Akinloye Akinboade Prof, Trevor Taft Dr Feb 2020

Awareness And Health Impacts Of Information Overload And Ict Usage In South Africa, Baldwin Obareng Manoko, Mmafani Serote Mrs, Oludele Akinloye Akinboade Prof, Trevor Taft Dr

Library Philosophy and Practice (e-journal)

Purpose:- This study examined information overload experiences of a group of individuals who are in the social media contact list of the researchers. This covers their perceptions, experiences and impact on their health.

Design:- A survey of randomly selected individuals in the social media contact network of the researchers has been made. This has been done by administering a closed structured questionnaire which cover information ranging from demographic characteristics, time spent on ICT usage, to their experiences of information overload and the health effects of such experience.

Findings:- Male respondents, who are largely unemployed are active ICT users, but are …


The Social Construction Of Digital Multimedia Technology And Creation Of Political Hyper-Realities In Indonesia And Malaysia, Basa Alim Tuelaka, Burhan Bungin Jan 2020

The Social Construction Of Digital Multimedia Technology And Creation Of Political Hyper-Realities In Indonesia And Malaysia, Basa Alim Tuelaka, Burhan Bungin

Library Philosophy and Practice (e-journal)

The development of media technology nowadays displays rapid progress, particularly the mainstream media that is developing towards digital media, which makes the social construction power even more flawless. This progress is very beneficial to the development of society, but it can also be used by political interests for control over powers. Against their political opponents, political parties can use this advanced mass media technology to attack and block off counterattacks through social construction or deconstruction. This study uses a narrative qualitative approach and interview method, by interviewing the informants to explore the understanding of the social construction of media in …


Mapping Intellectual Structure Of Published Articles In Information Retrieval During 1983-2017., Mozhdeh Salajeghe Prof., Adel Soleimani Pro., Mahdieh Khazaneha Mrs Sep 2019

Mapping Intellectual Structure Of Published Articles In Information Retrieval During 1983-2017., Mozhdeh Salajeghe Prof., Adel Soleimani Pro., Mahdieh Khazaneha Mrs

Library Philosophy and Practice (e-journal)

Abstract

Today information and communication cause the daily growth of published information. Studying all scientific production content and structures for specialist in different fields and publications is impossible. This study aims to analyze the articles regarding information retrieval based on the concepts of co-occurrence network analysis and centrality indicators published in Clarivate Analytics Web of Science[1] during 1983-2017. This is a descriptive study, using Scientometric approach. Its statistical population contains all articles related to Information retrieval in Clarivate Analytics Web of Science during1983-2017. The scientific research on Information retrieval starts in 2002. Based on the scientific map of countries, …


Transhumanism (Dot) Mil: A Bibliometric Analysis Of Technoprogressive Terms In Military Publications, K. Durwood Evans Sep 2019

Transhumanism (Dot) Mil: A Bibliometric Analysis Of Technoprogressive Terms In Military Publications, K. Durwood Evans

Library Philosophy and Practice (e-journal)

Has transhumanism influenced military thinking? Previous work found that transhumanist terms did not appear widely in military publications. The present work analyzes and improves on previous content analysis of transhumanist terms in military literature using the tools of library and information studies.


Scientometric Mapping Of Research Output Of Nirf First Ranked Institute Of India: Iisc, Bangalore, Satish Kumar, Senthilkumar R. Jun 2019

Scientometric Mapping Of Research Output Of Nirf First Ranked Institute Of India: Iisc, Bangalore, Satish Kumar, Senthilkumar R.

Library Philosophy and Practice (e-journal)

The study is aimed to investigate the scientific research productivity of India’s NIRF first ranked higher academic & research institute, Indian Institute of Science (IISc), Bangalore for a period of 05 years during 2014-2018. A total of 12,130 research papers were retrieved as SCIE publication from WoS bibliographical database and analyzed. The study is focused to find out the year wise institutional contribution in research, compound annual growth rate, areas of interest, collaborating institutions and countries, mode of publications, research funding agencies, prolific journals, prolific authors, authorship pattern, degree of collaborations etc. Different scientometric tools and techniques were used to …


Novice Ideas: Handwriting Comparisons Conducted By An Untrained Individual, Maia Lister May 2019

Novice Ideas: Handwriting Comparisons Conducted By An Untrained Individual, Maia Lister

Themis: Research Journal of Justice Studies and Forensic Science

Forensic analysis of questioned documents includes chemical analyses of paper and ink as well as handwriting comparisons. Several elements affect handwriting analyses, including the presence of discriminatory factors that can individualize a handwriting sample and whether the handwriting has been disguised. Five handwriting samples were gathered from six individuals comprising of one reference, three natural unknowns, and one disguised sample per person. A novice conducted analyses on every collected sample and conducted comparisons of the reference sample to the unknown and disguised samples in an attempt to correctly source the unknown and disguised samples. The novice showed a high level …


The Accumulation Of Wear On Footwear Pattern Analysis, Sarah Pawloski May 2019

The Accumulation Of Wear On Footwear Pattern Analysis, Sarah Pawloski

Themis: Research Journal of Justice Studies and Forensic Science

Wear is defined as the erosion of a shoe’s outsole or the loss of tread pattern, and it happens gradually over time with use. After a shoeprint is collected from a crime scene, it is questioned whether an individualization can be made if an exemplar is created after additional use of the shoe. The shoes of ten volunteers at San Jose State University were analyzed over a period of 40-45 days. Wear and Randomly Acquired Characteristics (RACs) were analyzed over time to determine if there were any observable changes or additions to the already present wear. It was hypothesized that …


Returns On Library Investment: A Study Of The Leading Engineering And Technology Institutes In India, Shivendra Singh, Ramesh Pandita Mr. May 2019

Returns On Library Investment: A Study Of The Leading Engineering And Technology Institutes In India, Shivendra Singh, Ramesh Pandita Mr.

Library Philosophy and Practice (e-journal)

The study is based on the secondary data compiled by the Ministry of Human Resource & Development, Govt., of India for the period 2012-13, 2013-14 & 2014-15 and was released as the ranking list of Institutes of Engineering and Technology in India for the year 2016. The study aims to assess the Returns on Investment (ROI) of the twenty leading libraries of the Institutes of Engineering and Technology in India in the form of institutional research output. An attempted has also been made to rank the each individual library on the basis of seven different parameters chosen for the study …


Application Of Bradford’S Law Of Scattering On Research Publication In Astronomy & Astrophysics Of India, Satish Kumar, Senthilkumar R. Dec 2018

Application Of Bradford’S Law Of Scattering On Research Publication In Astronomy & Astrophysics Of India, Satish Kumar, Senthilkumar R.

Library Philosophy and Practice (e-journal)

The present study is focused on examining the application of Bradford’s law of scattering on research articles published in the field of Astronomy & Astrophysics by Indian scientist during 1988-2017. The bibliographic data was retrieved from Web of Science (WoS) bibliographic data base for different period of time. Total 18,877 journal’s article have been published by Indian scientist in the field of Astronomy & Astrophysics during 1988-2017 which was further retrieved and analyzed separately for different blocks of 10 years as well as for 30 years consolidated too. The core journal of the field was identified. The Bradford law of …


Troping The Enemy: Metaphor, Culture, And The Big Data Black Boxes Of National Security, Robert Albro Sep 2018

Troping The Enemy: Metaphor, Culture, And The Big Data Black Boxes Of National Security, Robert Albro

Secrecy and Society

This article considers how cultural understanding is being brought into the work of the Intelligence Advanced Research Projects Activity (IARPA), through an analysis of its Metaphor program. It examines the type of social science underwriting this program, unpacks implications of the agency’s conception of metaphor for understanding so-called cultures of interest, and compares IARPA’s to competing accounts of how metaphor works to create cultural meaning. The article highlights some risks posed by key deficits in the Intelligence Community's (IC) approach to culture, which relies on the cognitive linguistic theories of George Lakoff and colleagues. It also explores the problem of …


Assessing The Use Of Information And Communication Technology In Teaching And Learning In Secondary Schools, De-Graft Johnson Dei Aug 2018

Assessing The Use Of Information And Communication Technology In Teaching And Learning In Secondary Schools, De-Graft Johnson Dei

Library Philosophy and Practice (e-journal)

Information and Communication Technology (ICT) has become a force that has changed many aspects of the way we live and every aspect of human endeavor such as education, medicine, business, law and engineering. Education is a socially oriented activity and quality education has traditionally been associated with teachers having high degrees of personal and face-to-face contact with students. But with the world moving rapidly into digital media and information, the role of ICT in education is becoming more and more important. However, indicators on technology uptake and use in education in the secondary schools in Ghana are missing and most …