Reinforced Palmprint Reconstruction Attacks in Biometric Systems

Biometric signals can be acquired with different sensors and recognized in secure identity management systems. However, it is vulnerable to various attacks that compromise the security management in many applications, such as industrial IoT. In a real-world scenario, the target template stored in the database of a biometric system can possibly be leaked, and then used to reconstruct a fake image to fool the biometric system. As such, many reconstruction attacks have been proposed, yet unsatisfactory naturalness, poor visual quality or incompleteness remains as major limitations. Thus, two reinforced palmprint reconstruction attacks are proposed. Any palmprint image, which can be easily obtained, is used as the initial image, and the region of interest is iteratively modified with deep reinforcement strategies to reduce the matching distance. In the first attack, Modification Constraint within Neighborhood (MCwN) limits the modification extent and suppresses the reckless modification. In the second attack, Batch Member Selection (BMS) selects the significant pixels (SPs) to compose the batch, which are simultaneously modified to a slighter extent to reduce the matching number and the visual-quality degradation. The two reinforced attacks can satisfy all the requirements, which cannot be simultaneously satisfied by the existing attacks. The thorough experiments demonstrate that the two attacks have a highly successful attack rate for palmprint systems based on the most state-of-the-art coding-based methods.

State of the Art Review of Reinforcement Strategies and Technologies for 3D Printing of Concrete

This state of the art review paper aims to discuss the results of a literature survey on possible ways to reinforce printed concrete based on existing reinforcement strategies. Just as conventional concrete, for 3D printed concrete to be suitable for large-scale construction, reinforcement is needed to increase the tensile capacity of concrete members and reduce temperature and shrinkage cracking. Despite efforts that are currently underway, the development of proper reinforcement suitable for printed concrete is still very active on the research agenda. As an initial step for designing suitable reinforcement for printed concrete, the existing reinforcement methods for printed concrete as well as conventional cast concrete from the literature are reviewed and summarized. Through the preliminary evaluation of the suitability and effectiveness of various reinforcement methods, guidelines are proposed to better understand possible solutions to reinforce printed concrete and inspire new practical ideas to fill the current technology void. The conclusions also include the possible improvements of the existing reinforcement methods to be considered in future applications.

Strategi Pemenangan Jokowi dan Ma’ruf Amin dalam Pemilihan Presiden 2019 melalui Pencitraan Politik

This study aims to see the winning strategy of the candidate pairs for Jokowi and Ma'ruf Amin in the 2019 presidential election, especially in terms of political imagery. Using Newman and Shet's theory by looking at reinforcement strategies, rationalization strategies, inducement strategies, and confrontation strategies. The method used is descriptive qualitative research methods through in-depth interviews and literature review. Primary data was obtained through interviews with resource persons, namely the success team and volunteer team for the Indonesia Maju coalition, secondary data consisting of books and related documents. The results showed that the candidate pairs Jokowi and Ma'ruf Amin tried to carry out various strategic tactics in order to present themselves as candidates who had a populist image, were liked, were honest and had a dominant ideology of democratic-socialism.

Aplicação da modelagem matemática na construção da casa ecológica e suas perspectivas no ensino

The investigation was carried out in a public school in the Federal District, located in the Administrative Region of Structural, from 2018 to 2919, to verify the perspectives of the teaching trend Modeling and a reflection of mathematics interacting with an environmental conscience. The article aims to disseminate the results of the PIBIC research on Mathematical Modeling, the research was promoted with encouragement from the Scientific Initiation Program (PIBIC) of the Federal Institute of Brasília - Structural Campus and aimed to identify the most used methodology of the mathematics teachers and how the discipline approach was carried out, as well as making the ecological model. The methodology included bibliographic reviews, questionnaires for teachers, intervention through the production of a model, reinforcement strategies for students in the Mathematics content. Aiming to promote students a different perspective on how to solve the proposed activities and introduce the basic concepts of geometry, with the vision of applying various objects with different geometric shapes to build the model. Regarding the teaching trend of Mathematical Modeling, only two teachers responded and stated that they do not know this methodology, at least with this denomination. Furthermore, it was identified that most of the classes were transmitted in the traditional way, and that teachers where not comfortable with new methodologies, in a way that the encounters and the production of the model material collaborated effectively for the students' and teachers learning in the content and that promoted an awareness of ecological and sustainable ways to inovate in the classroom.

Vaginal foreign body insertion in a patient with emotionally unstable personality disorder

Insertion of foreign objects into one or more bodily orifice, otherwise known as polyembolokoilamania, occurs as a result of a variety of psychosocial and psychiatric states. Such behaviour exposes the affected individual to the complications of object insertion, surgical removal and its adverse sequelae such as a colovesical fistula. Foreign body insertion into the vagina mainly involves children and can be associated with premenarchal vaginal discharge or sexual abuse. The gynaecological literature describes cases involving adults and can be associated with drug smuggling or sexual gratification. Commonly retrieved foreign bodies from the vagina includes tampons, hair pins, buttons, seeds, toy parts, objects used in foreplay, forgotten pessaries, pen caps, toilet tissue and illicit drugs for trafficking. There is a relative dearth of cases reported in the psychiatric literature. Management of deliberate foreign body insertion [DFBI) in borderline personality disorder patients is challenging, often repetitive and the potential for further self-harm and complex emotional issues may elicit strong countertransference from medical staff. Although there are well-established guidelines for acute medical and surgical management of DFBI, none provide an overview of the management of repeat presentations or consider the role of secondary gain or provide reinforcement strategies for managing this complex patient cohort. The authors present the case of a 23-year-old woman with an emotionally unstable personality disorder presenting to the emergency department after inserting objects in her vagina. This paper will provide an overview of the presentation, investigations and management of individuals presenting after inserting foreign objects into the vagina. In the majority of cases, a carefully obtained history and physical examination will render the diagnosis, although imaging modalities may be required to locate the misplaced objects. Individuals may present with bleeding, blood stained or foul-smelling vaginal discharge. Prompt management can prevent morbidity and mortality resulting from complications.

Cell Phones and Classroom Management

This chapter outlines and analyzes various classroom management strategies for teachers to regulate cell phone use. Beginning with the background of why cell phones are known to cause distractions in the classroom, the chapter then focuses on using both positive and negative reinforcement strategies for teachers to structure and encourage proper mobile phone usage. The author also includes the benefits and challenges imposed by various classroom management systems in order to guide teachers in making the right decisions regarding cell phone use in their classrooms.

Reinforcement Strategies of Silica Aerogels for Thermal Insulation Applications

Silica aerogels are usually known for their distinctive feature of thermal superinsulation. [...]