no / As part of a defense-in-depth security solution for domain-controlled enterprise networks, a proposed self-healing system architecture is designed to increase resiliency against botnets with minimal disruption to network services.

Yes / Formation of cracks represents one of the major causes of concrete deterioration, which can lead to durability and safety issues. In this work, a novel crack closure system is developed, using polyethylene terephthalate (PET) polymer fibres embedded in a mortar mix. The PET polymer has shape memory properties and shrinks upon thermal activation, if free to do so, or otherwise exerts shrinkage restraint forces. A single knot was manufactured at each end of the PET fibres to provide mechanical anchorage into the mortar matrix. Mortar samples with embedded knotted fibres were pre-cracked and subsequently placed in an oven to thermally activate the polymers and induce the shrinkage mechanism into the fibres. Crack closure was measured in the range 45–100%, depending on the geometry, dimension and distribution of the fibres, and the size of the initial crack. / This work is supported by UKRI-EPSRC (Grant No. EP/P02081X/1, Resilient Materials 4 Life, RM4L).

Cybercrime costs a total loss of about $338 billion annually which makes it one of the most profitable criminal activities in the world. Controlled malware (Botnet) is one of the most prominent tools used by cybercriminals to infect, compromise computer networks and steal important information. Infecting a computer is relatively easy nowadays with malware that propagates through social networking in addition to the traditional methods like SPAM messages and email attachments. In fact, more than 1/4 of all computers in the world are infected by malware which makes them viable for botnet use. This thesis proposes, implements and presents the Self-healing framework that takes inspiration from the human immune system. The designed self-healing framework utilises the key characteristics and attributes of the nature’s immune system to reverse botnet infections. It employs its main components to heal the infected nodes. If the healing process was not successful for any reason, it immediately removes the infected node from the Enterprise’s network to a quarantined network to avoid any further botnet propagation and alert the Administrators for human intervention. The designed self-healing framework was tested and validated using different experiments and the results show that it efficiently heals the infected workstations in an Enterprise network.

Yes / The presence of cracks has a negative impact on the durability of concrete by providing paths for corrosive materials to the embedded steel reinforcement. Cracks in concrete can be closed using shape memory polymers (SMP) which produce a compressive stress across the crack faces. This stress has been previously found to enhance the load recovery associated with autogenous selfhealing. This paper details the experiments undertaken to incorporate SMP tendons containing polyethylene terephthalate (PET) filaments into reinforced and unreinforced 500 × 100 × 100 mm structural concrete beam samples. These tendons are activated via an electrical supply using a nickelchrome resistance wire heating system. The set-up, methodology and results of restrained shrinkage stress and crack closure experiments are explained. Crack closure of up to 85% in unreinforced beams and 26%–39% in reinforced beams is measured using crack-mouth opening displacement, microscope and digital image correlation equipment. Conclusions are made as to the effectiveness of the system and its potential for application within industry. / EPSRC for their funding of the Materials for Life (M4L) project (EP/K026631/1) and Costain Group PLC for industrial sponsorship of the project and author

Yes / Here in, we describe a non-covalent (ionic interlocking and hydrogen bonding) strategy of self-healing in a covalently crosslinked organic-inorganic hybrid 15 nanocomposite hydrogel, with special emphasize on it's improved mechanical stability. The hydrogel was prepared via in-situ free radical polymerization of sodium acrylate (SA) and successive crosslinking in the presence of poly(2-(methacryloyloxy)ethyl trimethyl ammonium chloride) (PMTAC) grafted cationically armed starch and organically modified montmorillonite (OMMT). This hydrogel shows stimuli triggered self-healing following damage in both neutral and acidic solutions (pH=7.4 and pH=1.2). This was elucidated by tensile strength and rheological analyses of the hydrogel segments joined at their fractured points. Interestingly this hydrogel can show water based shape memory effects. It was observed that the ultimate tensile strength (UTS) of the self-healed hydrogel at pH = 7.4 was comparable to extensor digitorum longus (EDL) muscle of the New Zealand white rabbit. The as synthesized self-healable hydrogel was found to be non-cytotoxic against NIH 3T3 fibroblast cells. / Medical Research Council (MRC (MR/N501888/2))

Yes / Cracks in concrete composites, whether autogenous or loading-initiated, are almost inevitable and often difficult to detect and repair, posing a threat to safety and durability of concrete infrastructures, especially for those with strict sealing requirements. The sustainable development of infrastructures calls for the birth of self-healing concrete composites, which has the built-in ability to autonomously repair narrow cracks. This paper reviews the fabrication, characterization, mechanisms and performances of autogenous and autonomous healing concretes. Autogenous healing materials such as mineral admixtures, fibers, nanofillers and curing agents, as well as autonomous healing methods such as electrodeposition, shape memory alloys, capsules, vascular and microbial technologies, have been proven to be effective to partially or even fully repair small cracks. As a result, the mechanical properties and durability of concrete infrastructure can be restored to some extent. However, autonomous healing techniques have shown a better performance in healing cracks than most of autogenous healing methods that are limited to healing of cracks having a narrower width than 150 µm. Self-healing concrete with biomimetic features, such as self-healing concrete based on shape memory alloys, capsules, vascular networks or bacteria, is a frontier subject in the field of material science. Self-healing technology provides concrete infrastructures with the ability to adapt and respond to the environment, exhibiting a great potential to facilitate the creation of a wide variety of smart materials and intelligent structures.

Yes / The inclusion of crystalline admixture (CA) is a highly effective method for enhancing the self-repairing capabilities of mortar. This study examined the complexing abilities of different complexing agents under varying temperatures, pH levels, and ion species in order to select effective complexing agents for diverse environments, as complexing agents play a crucial role in CAs. After determining the type of complexing agent, an orthogonal array design was used to optimize the components of CA, and the strengthening mechanism of CA for mortar was discussed through microstructure analysis. The results showed that the complexation behavior of triethanolamine (TEA) and glycine performed better than sodium citrate (SC) for different pH, temperatures, and ion species. Meanwhile, TEA and glycine showed complementarity at different stages, so TEA and glycine were used as complexing agents in this study. Based on the orthogonal experiment, the optimal contents of Na2SiO3, Na2CO3, TEA, glycine, Ca(COOH)2, and nano-SiO2 in CA were determined to be 1.0%, 1.0%, 0.04%, 1.0%, 0.5%, and 1.0%, respectively. Under the synergistic effect of TEA and glycine, the hydration of aluminate and ferrialuminate was accelerated, and the hydration degree of cement paste was increased. At 28 d, the contents of CaCO3, C-S-H gel, and ettringite of cement paste with CA were higher than these of plain paste, but its Ca(OH)2 content was lower. Although the Ca(OH)2 content in the cement paste with CA was lower, the Ca(OH)2 crystal structure filled in the pores was larger. Therefore, the mortar mixed with CA exhibited higher compressive strength, water impermeability, and self-healing ability. / The full-text of this article will be released for public view at the end of the publisher embargo on 3 May 2025.

In this research, two phases of work were conducted. First, an investigation into the durability concerns for precast prestressed concrete piles exposed to marine environments was conducted. The investigation characterized the durability concerns of chemical, biological, and physical deterioration mechanisms. The results of this study were used to develop potential high performance marine concretes (HPMC) that would be capable of 100+ year service lives in marine environments. Extensive durability testing and service life modeling of the HPMC was performed. Chloride ingress resistance was investigated using accelerated and long-term test procedures and the results used to perform service life modeling to predict the time before corrosion initiation. Sulfate resistance characterization was performed using multiple techniques to characterize the physical and chemical behavior of binder compositions containing binary or ternary mixes containing cement and supplementary cementitious materials (SCM's) subjected to a sulfate-laden environment. Accelerated carbonation testing and material characterization led to the finding of relationships in the chemical composition of mix designs and the observed durability and the results used to perform corrosion initiation service life modeling. An investigation into the influence of self-healing of cracked concrete led to fundamental findings on the behavior of chloride ingress for cracked concrete structures in marine environments. The results of this research led to the development of concrete mix designs capable of providing service lives over 100 years in Georgia's marine environments, as well as the advancement of the current state of knowledge on the durability characteristics of ternary mix designs.

Construir encontros para a produção de saúde e experiência corporal tendo como mediadora as práticas corporais foi a proposta desta pesquisa. Os encontros foram propostos em dois espaços de Atenção Básica à Saúde: o Centro de Saúde Escola Geraldo Horácio de Paula Souza, localizado junto à Faculdade de Saúde Pública - USP/SP e, Unidade Básica de Saúde José Marcílio Malta Cardoso, ambos localizados na cidade de São Paulo. A investigação de natureza qualitativa contou com a realização de 54 encontros, com duração de uma hora e meia a duas horas e quinze minutos, durante o período de um ano, sendo um encontro por semana. Os encontros em grupo foram construídos a partir de um processo dinâmico, levando em consideração as demandas do grupo. Para a proposição de experiências corporais trabalhou-se com as técnicas propostas pelo Método Self-Healing de Meir Schneider (MSH). Participaram dos encontros mulheres, em sua maioria idosas (apesar do grupo ser proposto para qualquer usuário interessado). Por meio das anotações em um caderno de campo e das falas registradas por gravação de áudio dos encontros, organizou-se uma carta com as impressões e falas que se destacaram ao longo do processo sobre as experiências corporais, o cuidado, o acolhimento e os vínculos construídos nos grupos. Verificou-se que esses encontros em grupos foram profícuos na construção do acolhimento, do cuidado e do vínculo afetivo das pessoas envolvidas. O Método Self-Healing de Meir Schneider mostrou-se como uma técnica importante de cuidado e autocuidado no que se refere às práticas de relaxamento, movimentos ativos e passivos variados e saúde dos olhos, demonstrando trazer elementos que puderam agregar conhecimento e experiência corporal e, como consequência, melhora em situações de dor e desconforto. A Política Nacional de Práticas Integrativas e Complementares (PNPIC) tem legitimado e incentivado novas práticas corporais na Atenção Básica à Saúde e o MSH potencializado pelos encontros em grupo mostrou-se como um método que pode mobilizar para novas maneiras de andar a vida com autonomia e cuidado na medida em que agrega as tecnologias leves e leves duras na atenção à saúde das populações / To construct meetings for the production of health and corporal experience having as a mediator the corporal practices was the proposal of this research. The meetings were offered in two areas of Basic Health Care: the Geraldo Horácio de Paula Souza School Health Center, located next to the School of Public Health - USP / SP and the Basic Health Unit José Marcílio Malta Cardoso, both located in the city from Sao Paulo. The research of a qualitative nature counted on the accomplishment of 54 meetings, lasting from an hour and a half to two hours and fifteen minutes, during the period of one year, being one meeting per week. The group meetings were built from a dynamic process, taking into account the demands of the group. For the purpose of proposing bodily experiences, the techniques proposed by Meir Schneider\'s Self-Healing Method (MSH) were used. Women, mostly elderly, participated in the meetings (although the group was proposed to any interested user). By means of annotations in a field notebook and the recorded speeches by audio recording of the meetings, a letter was organized with the impressions and speeches that stood out throughout the process on the corporal experiences, the care, the reception and the ties built in groups. It was found that these group meetings were fruitful in building the welcoming, of care and the affective bond of the people involved. Meir Schneider\'s Self-Healing Method has been shown to be an important care and self-care technique in regard to relaxation practices, varied active and passive movements and eye health, demonstrating bringing elements that could add knowledge and bodily experience and, as a consequence, improvement in situations of pain and discomfort. The National Policy on Integrative and Complementary Practices (PNPIC) has legitimized and encouraged new corporal practices in Primary Health Care and the MSH enhanced by group meetings has proved to be a method that can mobilize for new ways of living life with autonomy and care in the measure that it adds the light and light technologies hard in the attention to the health of the populations

Construir encontros para a produção de saúde e experiência corporal tendo como mediadora as práticas corporais foi a proposta desta pesquisa. Os encontros foram propostos em dois espaços de Atenção Básica à Saúde: o Centro de Saúde Escola Geraldo Horácio de Paula Souza, localizado junto à Faculdade de Saúde Pública - USP/SP e, Unidade Básica de Saúde José Marcílio Malta Cardoso, ambos localizados na cidade de São Paulo. A investigação de natureza qualitativa contou com a realização de 54 encontros, com duração de uma hora e meia a duas horas e quinze minutos, durante o período de um ano, sendo um encontro por semana. Os encontros em grupo foram construídos a partir de um processo dinâmico, levando em consideração as demandas do grupo. Para a proposição de experiências corporais trabalhou-se com as técnicas propostas pelo Método Self-Healing de Meir Schneider (MSH). Participaram dos encontros mulheres, em sua maioria idosas (apesar do grupo ser proposto para qualquer usuário interessado). Por meio das anotações em um caderno de campo e das falas registradas por gravação de áudio dos encontros, organizou-se uma carta com as impressões e falas que se destacaram ao longo do processo sobre as experiências corporais, o cuidado, o acolhimento e os vínculos construídos nos grupos. Verificou-se que esses encontros em grupos foram profícuos na construção do acolhimento, do cuidado e do vínculo afetivo das pessoas envolvidas. O Método Self-Healing de Meir Schneider mostrou-se como uma técnica importante de cuidado e autocuidado no que se refere às práticas de relaxamento, movimentos ativos e passivos variados e saúde dos olhos, demonstrando trazer elementos que puderam agregar conhecimento e experiência corporal e, como consequência, melhora em situações de dor e desconforto. A Política Nacional de Práticas Integrativas e Complementares (PNPIC) tem legitimado e incentivado novas práticas corporais na Atenção Básica à Saúde e o MSH potencializado pelos encontros em grupo mostrou-se como um método que pode mobilizar para novas maneiras de andar a vida com autonomia e cuidado na medida em que agrega as tecnologias leves e leves duras na atenção à saúde das populações / To construct meetings for the production of health and corporal experience having as a mediator the corporal practices was the proposal of this research. The meetings were offered in two areas of Basic Health Care: the Geraldo Horácio de Paula Souza School Health Center, located next to the School of Public Health - USP / SP and the Basic Health Unit José Marcílio Malta Cardoso, both located in the city from Sao Paulo. The research of a qualitative nature counted on the accomplishment of 54 meetings, lasting from an hour and a half to two hours and fifteen minutes, during the period of one year, being one meeting per week. The group meetings were built from a dynamic process, taking into account the demands of the group. For the purpose of proposing bodily experiences, the techniques proposed by Meir Schneider\'s Self-Healing Method (MSH) were used. Women, mostly elderly, participated in the meetings (although the group was proposed to any interested user). By means of annotations in a field notebook and the recorded speeches by audio recording of the meetings, a letter was organized with the impressions and speeches that stood out throughout the process on the corporal experiences, the care, the reception and the ties built in groups. It was found that these group meetings were fruitful in building the welcoming, of care and the affective bond of the people involved. Meir Schneider\'s Self-Healing Method has been shown to be an important care and self-care technique in regard to relaxation practices, varied active and passive movements and eye health, demonstrating bringing elements that could add knowledge and bodily experience and, as a consequence, improvement in situations of pain and discomfort. The National Policy on Integrative and Complementary Practices (PNPIC) has legitimized and encouraged new corporal practices in Primary Health Care and the MSH enhanced by group meetings has proved to be a method that can mobilize for new ways of living life with autonomy and care in the measure that it adds the light and light technologies hard in the attention to the health of the populations