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Topic Review
Walnut Bacterial Blight Disease
The interaction between the plant host, walnut (Juglans regia; Jr), and a deadly pathogen (Xanthomonas arboricola pv. juglandis 417; Xaj) can lead to walnut bacterial blight (WB), which depletes walnut productivity by degrading the nut quality. Here, we dissect this pathosystem using tandem mass tag quantitative proteomics. Walnut hull tissues inoculated with Xaj were compared to mock-inoculated tissues, and 3972 proteins were identified, of which 3296 are from Jr and 676 from Xaj. Proteins with differential abundance include oxidoreductases, proteases, and enzymes involved in energy metabolism and amino acid interconversion pathways. Defense responses and plant hormone biosynthesis were also increased. Xaj proteins detected in infected tissues demonstrate its ability to adapt to the host microenvironment, limiting iron availability, coping with copper toxicity, and maintaining energy and intermediary metabolism. Secreted proteases and extracellular secretion apparatus such as type IV pilus for twitching motility and type III secretion effectors indicate putative factors recognized by the host. Taken together, these results suggest intense degradation processes, oxidative stress, and general arrest of the biosynthetic metabolism in infected nuts. Our results provide insights into molecular mechanisms and highlight potential molecular tools for early detection and disease control strategies.
  • 657
  • 05 Feb 2021
Biography
Wally Timm
Wally Timm (August 8, 1896 – April 29, 1978) was an American aircraft designer, pilot and manufacturer. Wally Timm was born in Lakefield, Minnesota, and with his family moved to Windom, Minnesota. He worked closely alongside his brother Otto Timm in the early days of aviation and was a pioneer in Hollywood films. Timm started in aviation as early as 1910.[1] Along with his brothers, Otto
  • 306
  • 21 Nov 2022
Biography
Wallace O. Fenn
Wallace Osgood Fenn[1] (April 27, 1893 – September 20, 1971) was a prominent physiologist, chairman of the department of physiology at the University of Rochester from 1925 to 1959. He also headed the University's Space and Science center from 1964 to 1966. He was also the president of the American Physiological Society, the president of the American Institute of Biological Sciences, and the p
  • 589
  • 16 Dec 2022
Topic Review
Wall-Associated Kinase
Wall-Associated Kinase (WAKs) are one of many classes of plant proteins known to serve as a medium between the extracellular matrix (ECM) and cytoplasm of cell walls. They are serine-threonine kinases that contain epidermal growth factor (EGF) repeats, a cytoplasmic kinase and are located in the cell walls. They provide a linkage between the inner and outer surroundings of cell walls. WAKs are under a group of receptor-like kinases (RLK) that are actively involved in sensory and signal transduction pathways especially in response to foreign attacks by pathogens and in cell development. On the other hand, pectins are an abundant group of complex carbohydrates present in the primary cell wall that play roles in cell growth and development, protection, plant structure and water holding capacity. Pectins are rich in galacturonic acids (OGs) and present in the middle lamellae in plant tissues where they provide strength, flexibility and adhesion between plant cells. Commercially and within the food industry, they are used as gels and stabilizers for desserts and juices. The role of WAKs in cell walls as pectin receptors is vital to a variety of functions involved with cell differentiation, form and host-pathogen relations.
  • 513
  • 25 Nov 2022
Topic Review
Wall System with Dynamic Thermal Insulation
Dynamic thermal insulation systems (DTISs) can adapt to external environment conditions and help to reduce energy consumption and increase occupants’ thermal comfort, contributing towards the mitigation of overheating. DTISs adjust their configuration to optimize heat transfer through the façade. 
  • 268
  • 13 Oct 2023
Topic Review
Wall Mosaics: on-site non-invasive diagnostics
This entry concerns the challenges and perspectives of on-site non-invasive measurements applied to valuable wall mosaics. The choice of the appropriate technique or combination of different techniques depends on a variety of factors: the depth of investigation, the resolution, the possibility to have direct contact with the surfaces or, on the contrary, limited accessibility of the wall mosaics due to their location (e.g., vaults), as well as deterioration problems, (e.g., voids, detachments, or humidity effects). This entry illustrates briefly the current state of the art in the field of non-invasive diagnostic methodsavailable for the study of wall mosaics (IRT, GPR, DHSPI, DHSPI-SIRT, SLDV, HSR), considering their potentials, limitations and future development frontiers. 
  • 832
  • 10 Nov 2020
Topic Review
Wall Materials Used in Spray-Drying
The wall material refers to the protective matrix that safeguards the core material, such as particles, substances, or compounds, throughout the encapsulation process and subsequent handling. It should possess the ability to withstand mechanical stress (e.g., handling) and environmental conditions (e.g., humidity, temperature, and water activity). In spray-drying processes, the chosen wall material must ensure the stability and shelf-life of the encapsulated particle, substance, or compound, while also being cost-effective in terms of encapsulation yield and efficiency. It is essential to understand the characteristics of the materials, regardless of this section aiming to define the primary materials utilized in spray-drying processes.
  • 341
  • 21 Jun 2023
Topic Review
Wall Materials of Peptide Microcapsules
Microencapsulation technology can improve the utilization rate of the active peptides. Microencapsulation technology is a kind of encapsulation technology based on nanocarriers. The microencapsulation of peptides refers to the selection of appropriate wall materials and the use of physical, chemical, or physicochemical methods to embed the active peptides, in order to give play to the advantages of isolating the interaction between the active peptide and the external environment.
  • 354
  • 15 Mar 2023
Topic Review
Walking Recognition in Mobile Devices
Presently, smartphones are used more and more for purposes that have nothing to do with phone calls or simple data transfers. One example is the recognition of human activity, which is relevant information for many applications in the domains of medical diagnosis, elderly assistance, indoor localization, and navigation. The information captured by the inertial sensors of the phone (accelerometer, gyroscope, and magnetometer) can be analyzed to determine the activity performed by the person who is carrying the device, in particular in the activity of walking. Nevertheless, the development of a standalone application able to detect the walking activity starting only from the data provided by these inertial sensors is a complex task. This complexity lies in the hardware disparity, noise on data, and mostly the many movements that the smartphone can experience and which have nothing to do with the physical displacement of the owner. In this work, we explore and compare several approaches for identifying the walking activity. We categorize them into two main groups: the first one uses features extracted from the inertial data, whereas the second one analyzes the characteristic shape of the time series made up of the sensors readings. Due to the lack of public datasets of inertial data from smartphones for the recognition of human activity under no constraints, we collected data from 77 different people who were not connected to this research. Using this dataset, which we published online, we performed an extensive experimental validation and comparison of our proposals.
  • 1.1K
  • 01 Nov 2020
Topic Review
Walking Needs and COVID-19
More than 150 cities around the world have expanded emergency cycling and walking infrastructure to increase their resilience in the face of the COVID 19 pandemic. This tendency toward walking has led it to becoming the predominant daily mode of transport that also contributes to significant changes in the relationships between the hierarchy of walking needs and walking behaviour. These changes need to be addressed in order to increase the resilience of walking environments in the face of such a pandemic.
  • 543
  • 26 Jul 2021
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