The Nile: Natural and Cultural Landscape in Egypt

Although Herodot's dictum that "Egypt is a gift of the Nile" is proverbial, there has been only scant attention to the way the river impacted on ancient Egyptian society. Egyptologists frequently focus on the textual and iconographic record, whereas archaeologists and earth scientists approach the issue from the perspective of natural sciences. The contributions in this volume bridge this gap by analyzing the river both as a natural and as a cultural phenomenon. Adopting an approach of cultural ecology, it addresses issues like ancient land use, administration and taxation, irrigation, and religious concepts

The Nile

Although Herodot's dictum that "Egypt is a gift of the Nile" is proverbial, there has been only scant attention to the way the river impacted on ancient Egyptian society. Egyptologists frequently focus on the textual and iconographic record, whereas archaeologists and earth scientists approach the issue from the perspective of natural sciences. The contributions in this volume bridge this gap by analyzing the river both as a natural and as a cultural phenomenon. Adopting an approach of cultural ecology, it addresses issues like ancient land use, administration and taxation, irrigation, and religious concepts

Deep Learning-Based Robotic Perception for Adaptive Facility Disinfection

Hospitals, schools, airports, and other environments built for mass gatherings can become hot spots for microbial pathogen colonization, transmission, and exposure, greatly accelerating the spread of infectious diseases across communities, cities, nations, and the world. Outbreaks of infectious diseases impose huge burdens on our society. Mitigating the spread of infectious pathogens within mass-gathering facilities requires routine cleaning and disinfection, which are primarily performed by cleaning staff under current practice. However, manual disinfection is limited in terms of both effectiveness and efficiency, as it is labor-intensive, time-consuming, and health-undermining. While existing studies have developed a variety of robotic systems for disinfecting contaminated surfaces, those systems are not adequate for intelligent, precise, and environmentally adaptive disinfection. They are also difficult to deploy in mass-gathering infrastructure facilities, given the high volume of occupants. Therefore, there is a critical need to develop an adaptive robot system capable of complete and efficient indoor disinfection. The overarching goal of this research is to develop an artificial intelligence (AI)-enabled robotic system that adapts to ambient environments and social contexts for precise and efficient disinfection. This would maintain environmental hygiene and health, reduce unnecessary labor costs for cleaning, and mitigate opportunity costs incurred from infections. To these ends, this dissertation first develops a multi-classifier decision fusion method, which integrates scene graph and visual information, in order to recognize patterns in human activity in infrastructure facilities. Next, a deep-learning-based method is proposed for detecting and classifying indoor objects, and a new mechanism is developed to map detected objects in 3D maps. A novel framework is then developed to detect and segment object affordance and to project them into a 3D semantic map for precise disinfection. Subsequently, a novel deep-learning network, which integrates multi-scale features and multi-level features, and an encoder network are developed to recognize the materials of surfaces requiring disinfection. Finally, a novel computational method is developed to link the recognition of object surface information to robot disinfection actions with optimal disinfection parameters

The Nile

Although Herodot's dictum that "Egypt is a gift of the Nile" is proverbial, there has been only scant attention to the way the river impacted on ancient Egyptian society. Egyptologists frequently focus on the textual and iconographic record, whereas archaeologists and earth scientists approach the issue from the perspective of natural sciences. The contributions in this volume bridge this gap by analyzing the river both as a natural and as a cultural phenomenon. Adopting an approach of cultural ecology, it addresses issues like ancient land use, administration and taxation, irrigation, and religious concepts

Seismic Performance of Anchored Brick Veneer

A study was conducted on the out-of-plane seismic performance of anchored brick veneer with wood-frame backup wall systems, to evaluate prescriptive design requirements and current construction practices. Prescriptive requirements for the design and construction of anchored brick veneer are currently provided by the Masonry Standards Joint Committee (MSJC) Building Code, the International Residential Code (IRC) for Oneand Two-Family Dwellings, and the Brick Industry Association (BIA) Technical Notes. Laboratory tests were conducted on brick-tie-wood subassemblies, comprising two bricks with a corrugated sheet metal tie either nail- or screw-attached to a wood stud, permitting an evaluation of the stiffness, strength, and failure modes for a local portion of a veneer wall system, rather than just of a single tie by itself. Then, full-scale brick veneer wall specimens (two one-story solid walls, as well as a one-and-a-half story wall with a window opening and a gable region) were tested under static and dynamic out-of-plane loading on a shake table. The shake table tests captured the performance of brick veneer wall systems, including interaction and load-sharing between the brick veneer, corrugated sheet metal ties, and wood-frame backup. Finally, all of these test results were used to develop finite element models of brick veneer wall systems, including nonlinear inelastic properties for the tie connections. The experimental and analytical studies showed that the out-of-plane seismic performance of residential anchored brick veneer walls is generally governed by: tensile stiffness and strength properties of the tie connections, as controlled by tie installation details; overall grid spacing of the tie connections, especially for tie installation along the edges and in the upper regions of walls; and, overall wall geometric variations. Damage limit states for single-story residential brick veneer wall systems were established from the experimental and analytical studies as a function of tensile failure of key tie connections, and the seismic fragility of this form of construction was then evaluated. Based on the overall findings, it is recommended that codes incorporate specific requirements for tie connection installation along all brick veneer wall edges, as well as for tie connection installation at reduced spacings in the upper regions of wall panels and near stiffer regions of the backup. Residential anchored brick veneer construction should as a minimum be built in accordance with the current prescriptive code requirements and recommendations, throughout low to moderate seismicity regions of the central and eastern U.S., whereas non-compliant methods of construction commonly substituted in practice are generally not acceptable.published or submitted for publicatio

On second thought: Low-effort thought promotes hierarchy values

Values are associated with political attitudes and political conservatism is promoted with low-effort thought. Does low-effort thought similarly promote the conservative value of hierarchy while reducing the value of equality? Values are conceptualized as stable, yet research suggests that values may be processed with automatic and controlled processes. I examined the automaticity of hierarchy values across four studies. In Study 1, bar patrons with higher blood alcohol levels rated hierarchy values as more important and egalitarian values as less important. In Study 2, participants asked to evaluate values superficially rated hierarchy values as more important and egalitarian values as less important than those asked to deliberate carefully. Study 3 sought to replicate Study 2 adjusting for the influence of affect. Participants asked to evaluate values superficially rated hierarchy values as more important but did not shift in equality values. Study 4 used ego depletion to manipulate cognitive effort while assessing values. Participants' value ratings under ego depletion did not significantly differ from those in the control group. Results of three studies suggest that low-effort thought processing may encourage support for hierarchical values at the expense of egalitarian values