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Book Review of A Career in Student Affairs
Get PDFA Career in Student Affairs: Reflections from Hmong Student Affairs Educators is a collection of unique experiences from Hmong professionals who work in student affairs, edited by Dr. Soua Xiong and Dr. Brian V. Xiong. This volume highlights different stories about how Hmong students came into their current student affairs careers. Each chapter has important advice for Hmong students considering a career in student affairs and examine what it means to be a first-generation Hmong student affairs professional. The collection of stories beautifully captures the hopes and dreams of those who immigrated from Thailand to America. In comparison, the book also looks at those who are born in the United States as they all learn to navigate and utilize their culture in student affairs. In this book, the different perspectives give each author room to connect to their past, present, and future selves and how they came to work in this field
Designing Field Courses to Teach FEW Concepts Effectively
Get PDFHow do students learn complex systems FEW concepts in field courses? An overview of field-course practices in the Yakima Valley of Washington State
Introducing Therapy Dog Programs Within Organizational Settings: A Scoping Review of Implementation Processes and Practices
No full textOrganizations are introducing therapy dog programs at a growing rate. Standards and guidelines for including therapy dogs in programs with people are also being developed and made available to those implementing such programs. How organizations are implementing programs, how they are aligning with available standards, and the presence of any barriers and facilitators to their implementation has been largely unexplored. Therefore, the aim of our review was to summarize the literature available on the implementation of therapy dog programs within organizational settings. Furthermore, we aimed to summarize available descriptions of program practices and their alignment with best practice guidelines, and any barriers or facilitators described by organizational stakeholders that may influence therapy dog program implementation. A scoping review was conducted searching the databases CINAHL, psycINFO, ERIC, Web of Science, and PubMed, which resulted in the selection of 23 papers for inclusion. The literature revealed that visiting therapy dog programs were most popular among organizations due to a perceived reduced risk, as well as decreased costs and responsibility for training and assessment of the therapy dogs and handlers. A large degree of inconsistency was found across organizational policies and practices, as well as organizational understanding of available training and standards of practice. Translation of guidelines into practice and clarity regarding content of training for practitioners appear to be lacking within the industry. Consistent concerns from organizational perspectives include the risks of disease, safety issues, and worries of fears and phobias about dogs. Further research should consider exploring aspects for improving translation of guidelines into practice for therapy dogs within organizations to enhance consistency in practices and policies. Longitudinal studies of therapy dog program practices within organizations, across various industry types, could also provide insight into whether differing needs may exist
Methodologies And Applications Of Precision Shot Peening To Hole Or Slot Geometry
No full textShot peening, a commonly used method of fatigue and surface enhancement, is a critical process in many of the components in the aerospace industry. When it comes to small holes and/or slot geometries in these components, the process can become a challenge when these features are smaller than a conventional size Almen strip. In these cases, a decision must be made about how to process this type of geometry. Oftentimes, the method to apply the shot peen process is already defined in a process specification or part print so we must adhere to that method. If a method is not defined however, there are a few different strategies we can use to apply the shot peen process to the hole/slot geometry as accurately as possible. These methods involve using full size Almen strips, partially shaded strips and mini sized Almen strips. Along with the various strip configurations, we will use a conventional nozzle peening process as well as deflector lance peening processes to the strips and then to coupons.
By manufacturing identical coupons made from a commonly used aerospace alloy, we can apply each of these different shot peen strategies which are described in this study. After shot peening the coupons, they will be sent for x-ray diffraction (XRD) analysis. This will allow us to compare the compressive residual stress (CRS) profiles of each method to discern if there are any measurable differences between the methods
Expansion Of Laser Peening Application With A High-Power Microchip Laser On A Robotic Arm
No full textLaser peening (LP) introduces compressive residual stress (RS) onto the surface of metallic materials using nanosecond laser pulses irradiated through a water layer, thereby effectively suppressing fatigue crack initiation. However, conventional LP systems require large, stationary setups, restricting their use to indoor environments. To overcome this limitation, a portable LP device featuring a finger-sized microchip laser mounted on a collaborative robot arm has been developed. Equipped with a compact power supply and a water circulation/recovery system, the device can operate on-site with minimal setup. Successful processing across various materials has confirmed both compressive RS induction and fatigue life extension. Notably, the portable LP device can be used on members subjected to dead load (their own weight) after installation at construction sites. This helps to counteract tensile stress and enhance fatigue performance, as demonstrated by in situ LP experiments on HT780 fatigue samples
Enhancing Ye’elimite-Gypsum Hydration and Microstructure in Cementitious Systems Using Layered Double Hydroxides
No full textThis study evaluates the effect of nano-CaAlNO₃ layered double hydroxide (CAN LDH) on the early-age hydration of ye’elimite–gypsum systems. CAN LDH was synthesized via co-precipitation and added at 0%, 2%, and 5% dosages to ye’elimite–gypsum pastes. Isothermal calorimetry showed that LDH addition accelerated hydration, while XRD analysis confirmed increased ettringite formation, particularly at 5 wt%. The improvements are attributed to the LDH’s high surface area, ion release, and nucleation capabilities. Results suggest that CAN LDH enhances hydration kinetics and microstructure development, making it a promising additive for CSA-based low-carbon binders
Calcium Nitrate Effectively Mitigates Alkali-silica Reaction by Surface Passivation of Reactive Aggregates
No full textCalcium nitrate (Ca(NO₃)₂, CN) has demonstrated strong potential as an additive to suppress alkali–silica reaction (ASR) in concrete. Its effectiveness is attributed to the formation of precipitates (i.e., barrier or passivation layer) that hinder the dissolution of reactive aggregates. This study investigates the ASR mitigation performance of CN across two cement types—ordinary Type I/II and Portland Limestone Cement (PLC)—in combination with aggregates of varying reactivity and several supplementary cementitious materials (SCMs), including amorphous steel slag and both Class C and Class F fly ashes. Accelerated mortar bar tests, following ASTM C1260 and C1567, show that CN substantially reduces expansion in a dose-dependent manner across all mixtures. Microstructural characterization, chemical dissolution analysis, and thermodynamic modeling reveal that CN promotes the precipitation of calcium-silicate-hydrate (C-S-H), portlandite (Ca(OH)₂), and calcite (CaCO₃) mixtures on aggregate surfaces. These phases thermodynamically hinder the formation of typical ASR gels and create a protective layer that suppresses silica dissolution and alkali-induced degradation The mitigation is effective in both SCM-free and SCM-containing systems, demonstrating the reliable performance of CN in varied mix designs. Considering the cost-effectiveness of CN (~600 per tonne) relative to lithium-based alternatives (\u3e$12,000 per tonne) and the declining availability of fly ash, CN presents a viable and scalable strategy for controlling ASR in modern concrete infrastructure. This work highlights the importance of aggregate surface passivation in mitigating ASR and provides insight into the practical application of CN across diverse concrete formulations
Carbonated Industrial Waste by CO2 mineralization as New Constituent for Cements
No full textCarbonation of industrial waste by CO2 mineralization is a carbon capture solution that offers a way to reduce CO₂ emissions and improve waste management. In this study, carbonated waste from the ceramic industry is used in cementitious binders, reducing the carbon footprint of cement production. Mortars prepared with these binders have been tested for strength and physical properties. Preliminary results show that all formulations meet EN 197-1:2011 strength requirements, demonstrating that the carbonated product can reduce clinker content in cementitious binders without compromising their performances
Evaluating fire resistance of calcium sulfoaluminate cement-based lightweight mortar: A comparative analysis of raw and expanded vermiculite
No full textThis study examined the impact of direct fire exposure on the engineering properties of calcium sulfoaluminate cement (CSA) mortars with substitutions of vermiculite, either raw or expanded, at 10%, 20%, and 30% replacement ratios by volume. Specimens measuring 40x40x160 mm were cured for 28 days, dried, exposed to fire, and subsequently cooled. Various tests were conducted before and after exposure to evaluate the fire’s impact on the mortars. Results indicated that increasing the vermiculite content significantly diminished both compressive and flexural strength across all replacement levels, with reductions persisting after fire exposure. Additionally, thermal properties were notably affected; for instance, the thermal conductivity after fire exposure decreased from 1.47 ± 0.01 W/mK to 0.85 ± 0.002 W/mK for raw vermiculite and to 0.31 ± 0.001 W/mK for expanded vermiculite at a 30% replacement ratio. Mortars containing expanded vermiculite exhibited considerably lower thermal conductivity compared to those with raw vermiculite, highlighting the potential of expanded vermiculite in producing energy-efficient and sustainable CSA mortars. This volumetric replacement approach not only reduces thermal conductivity but also contributes to enhanced heat and sound insulation, as well as moisture regulation in buildings