259 research outputs found
Comparing development of drug resistance by \u3ci\u3eCryptococcus neoformans\u3c/i\u3e to chemically distinct azole anti-fungal compounds
Cryptococcus neoformans is a fungus that primarily infects humans who have weakened immune systems. An azole drug, Fluconazole, is commonly administered against C. neoformans in regions were cryptococcosis is most prevalent, most notably Sub-Saharan Africa. However, C. neoformans can gain resistance to Fluconazole through becoming an aneuploid. To better understand the basis of resistance, we employed a disk diffusion assay and investigated several chemically-distinct azole compounds with anticryptococcal properties for their effectiveness against C. neoformans and to identify potential differences in the capacity of the fungus to become resistant to each of the tested compounds. Different C. neoformans strains were tested, including both mating types. We found that Isavuconazole, Voriconazole, Difenoconazole, and Efinaconazole were superior to Fluconazole in preventing the occurrence of resistance, whereas Ketoconazole, and Myclobutanil demonstrated a relatively higher incidence of resistance. Our study has also demonstrated that the antifungal drugs differ significantly in their stability when added to the semi-solid rich growth media, which may partly explain differences in the occurrence of antifungal resistance
The "Safe Student" Scholarship: Expanding Education Choice Options to Improve School Safety
School safety is an issue that policymakers have struggled to address for decades. Current federal policy provides an Unsafe School Choice Option that has been largely overlooked. States should ensure that implementation of the policy allows all students who are in unsafe environments to transfer to a safe and effective school. At the same time, state policymakers should immediately provide school choice options to children who are direct victims of school violence or bullying, and to those students in schools with a high rate of such victimization, through the introduction of "safe student" scholarships.
Does Regulation Induce Homogenization? An Analysis of Three Voucher Programs in the United States
We employ school and year fixed-effects regression to determine the effect of voucher programs on the supply of private schools. In particular, we examine individual private schools in Washington, D.C., Indiana, and Louisiana as they transition into voucher program environments. We leverage the Private School Universe Survey to examine how schools self-identify before and after switching into voucher environments. We find that upon switching into school voucher programs, private schools in more heavily regulated programs are more likely to identify as less specialized than they were prior to entering the program, and that those schools in more lightly regulated environments continue to highlight their specialized approach to education. These findings are examined within an institutional theory framework to understand the potential homogenizing effect of regulations on the diversity of the private school market
Solvable Leibniz algebras with triangular nilradical
A classification exists for Lie algebras whose nilradical is the triangular
Lie algebra . We extend this result to a classification of all solvable
Leibniz algebras with nilradical . As an example we show the complete
classification of all Leibniz algebras whose nilradical is .Comment: arXiv admin note: text overlap with arXiv:1307.844
Deal or No Deal? The Effects of Deregulation on Public School Leaders’ Support for Private School Choice in California
Public school leaders might be more likely to support private school voucher programs if they are enacted alongside public school deregulations. We use a survey experiment to examine the effects of public school deregulations on actual public school leaders’ support for a hypothetical private school voucher program in California. We do not find evidence to suggest that public school deregulations affect public school leaders’ support for private school vouchers overall. However, we unexpectedly find that deregulations related to teacher certification and administration of standardized tests further decrease support for private school choice for leaders of large public schools. This unexpected result may be explained by expected adjustment costs or regulatory capture
The Effects of Regulations on Private School Choice Program Participation: Experimental Evidence from Florida
When deciding whether to participate in a private school choice program, private school leaders weigh additional financial benefits against additional regulatory costs. In theory, raising the costs associated with entering private school choice programs should reduce the likelihood that individual schools participate in those programs. However, very little empirical evidence exists evaluating this idea. While a few studies suggest that more highly regulated programs are correlated with lower levels of school participation, none have established causal relationships between these factors, and none have determined which program regulations are the most costly. Because it is nearly impossible to randomly assign program regulations to individual private schools, we use surveys to randomly assign different regulations to 3,080 private school leaders in Florida and ask them whether they would participate in a new private school choice program during the following school year. Relative to no regulations, our most conservative models find that open-enrollment mandates reduce the likelihood that private schools are certain to participate by about 17 percentage points, or 70 percent. State standardized testing requirements reduce the likelihood that private schools are certain to participate by 11 percentage points, or 44 percent. We find no evidence to suggest that the prohibition of copayment affects program participation overall. These estimates of the impact of regulatory requirements on the expressed willingness of private school principals to participate in a private school choice program are causal because random assignment leads to equivalence in expectation across treatment and control groups on both measurable and unmeasurable factors. We also find evidence to suggest that higher quality schools – as measured by tuition levels and enrollment trends – are more likely to be deterred by program regulation
The Effects of Regulations on Private School Choice Program Participation: Experimental Evidence from California and New York
Although private school voucher programs provide subsidies to students for tuition and other education-related costs, private school leaders weigh program participation against any associated regulatory costs. The higher the regulatory costs of participation, the less likely a private school is to participate in a school voucher program. Since we do not know with certainty which regulations will be viewed by school leaders as more or less costly, we explore whether specific regulations that are common to private school choice programs do or do not deter likely voucher program participation.We use surveys to randomly assign different regulations to 4,825 private school leaders in the states of California and New York and ask them whether or not they would participate in a new private school choice program during the following school year. Relative to no regulations, our most conservative models find that open-enrollment mandates reduce the likelihood that private school leaders are certain to participate in a hypothetical choice program by about 19 percentage points, or 60 percent. State standardized testing requirements reduce the likelihood that private school leaders are certain to participate by 9 percentage points, or 29 percent. We find no evidence to suggest that the prohibition of copayment or nationally norm-referenced testing requirements affect the overall willingness to participate in a school choice program
A feasibility test of an online intervention to prevention dating violence in emerging adults
Dating violence in emerging adults is a significant problem and few prevention programs based on the developmental needs of this age group have been developed. Our research team developed an online dating violence prevention program called WISER (Writing to Improve Self-in-Relationships) for emerging adults. The program is based on narrative therapy principles and uses structured writing techniques. A single group pre-post feasibility test of WISER was conducted with 14 college women. WISER was demonstrated to be feasible and acceptable and to show promise as an effective program to decrease dating violence in this population
Comparing Moral Reasoning across Graduate Occupational and Physical Therapy Students and Practitioners
Practicing clinicians must use moral reasoning to solve ethical problems and combat moral distress. Development of moral reasoning in occupational therapy (OT) and physical therapy (PT) students has been significantly under researched. The purpose of this study was to analyze the differences in moral reasoning between first year and second year OT and PT students and between students and OT and PT practitioners. Investigators utilized a cross-sectional study design with a convenience sample of University of Indianapolis OT and PT students and a combination of convenience and snowball sampling to recruit licensed OT and PT practitioners. One hundred and fifty-four participants completed the Defining Issues Test - 2 (DIT-2; Rest et al., 1999) survey. Comparisons of N2 scores using t-tests found no differences between groups in moral reasoning schema (one’s preferred way of approaching moral issues, divided into stratified developmental levels). However, Pearson’s Chi-Square analysis for a comparison of all students to all practitioners for moral reasoning patterns (one’s ability to discriminate between types of moral reasoning schemas when presented with a complex moral dilemma) was significant between students (transitional) and practitioners (consolidated), with the greatest difference between second-year students and practitioners. Continual expansion of ethics content, including interjecting clinical experiences into the classroom, within OT and PT graduate programs may promote moral reasoning pattern development with carryover into practice. Clinical experiences provide real-world opportunities necessary to progress students from transitional to consolidated thinking patterns. To improve ethics education, authors recommend active learning strategies and ethics mentorship throughout clinical experiences
- …