Effects of co-surfactant and conditioning agent on colour

The colour-fading of hair treated with oxidative dyes is attributed to the effects of ultraviolet light and other environmental factors, but mostly it occurs during shampooing. This effect is caused by the diffusion of chromaphores from within the cortex towards the cuticle surface. The colour fading of dyed hair during shampoo washing is determined by a range of factors, most significantly by the chemistry of the chromaphores, the porosity of the hair fibres, and the properties of the used surfactants. Optimising the cleansing efficacy of shampoos in relation to colour protection claims is of interest to formulators. This study investigates the effects of two co-surfactants and a range of conditioning additives, polycationic and silicone-based, on the colour fading of hair tresses treated with red oxidative hair dye and put through repeated wash-and-dry cycles. The results indicate that the choice of co-surfactant alone, and in combination with the conditioning additives, can significantly influence the colour fading of red oxidative dye treated hair during shampooing. The amphoteric co-surfactant offered statistically significant improved colour retention, compared to the nonionic. Furthermore, the silicone based conditioning additive delivered enhanced colour retention in comparison with the selected cationic polymers

The Handoff Culture: Can we change how an ICU to floor transfer works?

Handoffs between providers have increased following the implementation of the 2011 Accreditation Council for Graduate Medical Education (ACGME) work hour restrictions. Properly structured and timed handoffs are essential to patient safety.1 Despite this, studies have shown that errors in code status, medication allergies, and important updates to the problem list are common, all of which can lead to adverse outcomes to patients.2 At Thomas Jefferson University Hospital (TJUH) the 2016 Safety Culture Survey revealed that across all specialties, 37% of residents felt that things “fall through the cracks” when transferring patients from one unit to another. Our interdepartmental Housestaff Quality and Safety Leadership Council (HQSLC) sought to evaluate and modify the TJUH ICU to floor handoff process. Through engaging our diverse membership, we realized that the ICU to floor handoff process at TJUH lacks standardization. The following areas demonstrated a high degree of variation, and were seen as targets for improvement: ● Timing of handoff: Some departments give the handoff at the time of transfer order, and others at bed assignment. ● Incorporation of best practices: Both verbal and written handoffs should be performed with time for follow up questions by the receiving team ● Closed loop communication: Both sending and receiving teams should clearly communicate the plan of care, and the receiving team should clearly indicate when they have taken over primary responsibility. Poster presented at: House Staff Quality and Safety Leadership Council conference at Thomas Jefferson University.https://jdc.jefferson.edu/patientsafetyposters/1073/thumbnail.jp

An ex vivo study of the effects of co-surfactants and conditioning additives on hair colour protection

This poster was exhibited as part of the Beauty and Life Science section of the Scientific Program

Kristin Grant and Starla Hibler in a Faculty Recital

This is the program for the faculty recital featuring flutist Kristin Grant and pianist Starla Hibler. This recital took place on November 1, 2004, in the W. Francis McBeth Recital Hall

Kristin Grant and Jenny Salyers in a Faculty Recital

This is the program for the faculty recital featuring flautist Kristin Grant and pianist Jenny Salyers. This recital took place on March 14, 2006, in the W. Francis McBeth Recital Hall

The Mechanostability of Isolated Focal Adhesions Is Strongly Dependent on pH

SummaryThis report demonstrates that the mechanical stability of focal adhesions exhibits a biphasic and sensitive pH dependence. These studies used isolated focal adhesions, which retain many of the properties of the intracellular structures, including protein composition and force-dependent reinforcement by cytosolic proteins. The focal adhesion structures are least stable to applied force at a pH of 6.4, and significantly more stable at slightly higher and lower pH values. This trend is consistent with previous work that characterized the pH dependence of cell migration and may therefore be relevant to controlling the invasiveness of metastatic cancer cells. This approach is significant because it allows biochemical studies of large protein complexes previously studied only in cell culture, and therefore offers new opportunities for performing mechanistic studies of a range of factors that contribute to focal adhesion stability

Cross National Comparisons of Excellence in University Mathematics Instructors - An Analysis of Key Characteristics of Excellent Mathematics Instructors based on Teacher Evaluation Forms

Mathematicians have, historically, not been overly successful in their approach to teaching and much research has looked in to why this is so. Teaching mathematics is based on a solid understanding of the subject; however, instructors also need to be able to efficiently communicate the subject to their students. The purpose of this study was to establish common characteristics of excellent university lecturers in mathematics by applying Marsh's ten evaluation categories. This thesis sought to identify which of these areas were most consistently demonstrated by those university lecturers receiving the highest student ratings and whether there are any areas in which excellent lecturers received inconsistent ratings. The dissertation further used these observations to provide evidence of particular characteristics that are more important than others in the development of excellent university mathematics instructors. This study collected quantitative data in the shape of teacher evaluation forms from both Swedish and US mathematics institutions. The data suggests that instructors acknowledged to be excellent receive high ratings in areas concerning subject matter knowledge, explanatory ability, the fairness of examinations, and enthusiasm and commitment to students. Overall, items that explain a lecturer's persona, character and personality are generally more highly correlated with ratings for the instructor himself whereas categories which describe the preparation, organization and structure of the course, are generally more highly correlated with a student's overall learning experience and Overall Course rating

Parental Perceptions of Oral Health and School-Based Dental Sealant Programs

Introduction: Community Health Needs Assessment (University of Vermont Medical Center, 2013) Identified oral health in pediatric population as a primary concern Barriers to dental care cited: access, affordability, education School-Based Sealant Program (SBSP) Dental sealants are an evidence-based method of cavity prevention CDC strongly recommends delivery via SBSPs Few Vermont schools have such a program Vermont Medicaid State Plan amendment allows dental hygienists to bill without on-site dentist (2015)4 Unique opportunity to pilot an SBSP Pilot program implemented by the University of Vermont Medical Center Community Health Improvement Goal: sustainable model able to be replicated in Vermont schools Pilot School Selection – Milton Elementary-Middle School (MEMS) Demographics representative of Vermont schools (46% free & reduced lunch program); school administration supportive of an SBSP; no existing dental education (“Tooth Tutor”) program per Vermont Office of Oral Healthhttps://scholarworks.uvm.edu/comphp_gallery/1232/thumbnail.jp

Neck linker docking is critical for Kinesin-1 force generation in cells but at a cost to motor speed and processivity.

Kinesin force generation involves ATP-induced docking of the neck linker (NL) along the motor core. However, the roles of the proposed steps of NL docking, cover-neck bundle (CNB) and asparagine latch (N-latch) formation, during force generation are unclear. Furthermore, the necessity of NL docking for transport of membrane-bound cargo in cells has not been tested. We generated kinesin-1 motors impaired in CNB and/or N-latch formation based on molecular dynamics simulations. The mutant motors displayed reduced force output and inability to stall in optical trap assays but exhibited increased speeds, run lengths, and landing rates under unloaded conditions. NL docking thus enhances force production but at a cost to speed and processivity. In cells, teams of mutant motors were hindered in their ability to drive transport of Golgi elements (high-load cargo) but not peroxisomes (low-load cargo). These results demonstrate that the NL serves as a mechanical element for kinesin-1 transport under physiological conditions

Recruitment and functionality traits as biondicators of ecological restoration success in the Lurg Hills district, Victoria, Australia

Introduction The Regent Honeyeater Project commenced ecological restoration in the Lurg district in 1994, with an aim to restore habitats for the critically endangered Regent Honeyeater Anthochaera phrygia and a range of other threatened and declining species. Within this context, our study aimed to explore whether plant reproduction can be an effective measure of ecological restoration success. Methods Evaluation involved comparing attributes at unrestored, restored and remnant sites to establish whether sites displayed evidence of a clear restoration trajectory. Five age classes (unrestored, 4–6 years old, 8–10 years old, 12–14 years old and remnant areas) and two landforms (upper hills and lower hills) were considered. The diversity of woody plant species—which have easily recognisable reproductive material and which all recruit seedlings—provides easily measured parameters that have the potential to allow the determination of early establishment success and long-term ecological development of restored ecosystems. Results Restoration plantings developed in a hybrid state towards a benchmark in the lower hills; seedling species composition differed significantly among age classes, increasing in similarity with time since restoration, with some divergence from the target pathway. Composition of functional groups with reproductive outputs was also significantly different among age classes; however, a restoration trajectory was only evident in the upper hills where sites converged towards the target goal. Conclusions Divergence or deviation from the restoration trajectory was not deemed to be a restoration failure, as the variety of functional groups with fruits and diversity of seedlings recruiting indicated a potential increase in resilience in the future due to greater variability across the landscape. Plant recruitment was effective in detecting development trends towards a restoration target in this study and therefore may be a useful measure that contributes to determining ecological restoration succes