Quality of life in children with unilateral hearing loss: a pilot study

The purpose of this investigation was to determine the impact of unilateral hearing loss on the quality of life of children. Focus group sessions were held for parents and children or adolescents with unilateral hearing loss to discuss their perceptions. Parents and children or adolescents completed the Pediatric Quality of Life Inventory. Findings were presented depicting which domains of quality of life are most affected

Fresnel concentrating collector

An advanced point focusing solar technology demonstrated potential for near term commercialization as a renewable energy technology. The design features combine to produce a highly efficient, low cost, safe, adaptable, durable system which is simple to manufacture, install and maintain

Discovery: A Squaring Pattern for Two-Digit Numbers and Beyond

Delving into and expanding the thinking of students is an important challenge for mathematics teachers. This article describes the thinking of one student, Sam, about perfect square numbers. His thinking and the probing of his teacher helped Sam develop his own pattern for mentally calculating perfect squares. Sam writes his pattern as a formula involving digits of the original number to be squared. The article describes his thinking process and the algebra used to verify his ideas

Avoiding disclosure of individually identifiable health information: a literature review

Achieving data and information dissemination without arming anyone is a central task of any entity in charge of collecting data. In this article, the authors examine the literature on data and statistical confidentiality. Rather than comparing the theoretical properties of specific methods, they emphasize the main themes that emerge from the ongoing discussion among scientists regarding how best to achieve the appropriate balance between data protection, data utility, and data dissemination. They cover the literature on de-identification and reidentification methods with emphasis on health care data. The authors also discuss the benefits and limitations for the most common access methods. Although there is abundant theoretical and empirical research, their review reveals lack of consensus on fundamental questions for empirical practice: How to assess disclosure risk, how to choose among disclosure methods, how to assess reidentification risk, and how to measure utility loss.public use files, disclosure avoidance, reidentification, de-identification, data utility

Parameterized Littlewood-Paley operators with variable kernels on Hardy spaces and weak Hardy spaces

In this paper, by using the atomic decomposition theory of Hardy space and weak Hardy space, we discuss the boundedness of parameterized Littlewood-Paley operator with variable kernel on these spaces.Comment: 15 pages. arXiv admin note: text overlap with arXiv:1711.0961

Experimental design trade-offs for gene regulatory network inference: an in silico study of the yeast Saccharomyces cerevisiae cell cycle

Time-series of high throughput gene sequencing data intended for gene regulatory network (GRN) inference are often short due to the high costs of sampling cell systems. Moreover, experimentalists lack a set of quantitative guidelines that prescribe the minimal number of samples required to infer a reliable GRN model. We study the temporal resolution of data vs quality of GRN inference in order to ultimately overcome this deficit. The evolution of a Markovian jump process model for the Ras/cAMP/PKA pathway of proteins and metabolites in the G1 phase of the Saccharomyces cerevisiae cell cycle is sampled at a number of different rates. For each time-series we infer a linear regression model of the GRN using the LASSO method. The inferred network topology is evaluated in terms of the area under the precision-recall curve AUPR. By plotting the AUPR against the number of samples, we show that the trade-off has a, roughly speaking, sigmoid shape. An optimal number of samples corresponds to values on the ridge of the sigmoid

Bias-assisted photoelectrochemical etching of p-GaN at 300 K

Photoelectrochemical (PEC)etching of p-type GaN has been realized in room temperature, 0.1 M KOH solutions. PECetching of GaN was achieved by applying a positive bias to the surface of the p-GaN layer through a deposited titanium mask. The applied bias reduces the field at the semiconductor surface, which induced the dissolution of the GaN. The effect of bias on etch rate and morphology was examined. It was found that insulating the Ti mask from the KOH solution with Si3N4 significantly increases the etch rate. The rms roughness of the etched region decreased as the bias voltage increased. Etch rates as high as 4.4 nm/min were recorded for films etched at 2 V

Effects of Instruction on Basic Addition Fluency for Second Grade Students

The purpose of this action research is to determine the effect of instruction on basic addition fluency. The Number Corner curriculum was used to instruct, supplement, and assess students’ ability to increase their addition facts per minute. A sample of 22 students participated in this action research study. There were several programs including Scout Them Out, Quick Facts, and other activities assigned by the curriculum, that helped make up the whole intervention. This took place in scheduled increments over a three-month period. The study gathers qualitative data which helped determine that the curriculum was successful in helping students increase their math facts per minute, and aids in increasing basic addition fact fluency

Incorporating Discourse in Secondary Mathematics

During my teaching experience, I often came across students who could not speak about the mathematics that we were dealing with and had a disconnect between mathematical concepts and processes. I kept wondering, what do math educators and researchers know about discourse and how do we effectively engage students in it? When the teacher acts as a guide and uses certain strategies such as reflective discourse, funneling, or word walls, students will better conceptually understand the mathematics they are trying to learn. Not only will their conceptual understanding and achievement increase, but students will reap the important benefit of seeing math as created by communities. Learning about and implementing discourse is important for new and experienced teachers

The Influence Of Social And Economic Factors On Breastfeeding And Rural Mothers

Little is known or understood about rural mothers and their experience with breastfeeding. The literature demonstrates a sound understanding of the factors that influence mothers and breastfeeding; however, it is unclear what factors influence breastfeeding among rural mothers. A search of the literature offered thousands of articles related to urban mothers and their breastfeeding experience, but few describe the rural mother’s breastfeeding experience. Therefore, the purpose of this study is to investigate the basic process that characterizes breastfeeding among mothers in the rural setting and to develop a theory based on the investigation of factors that influence breastfeeding among rural mothers. Because little is known, a grounded theory approach provides the best avenue to investigate the interactions between mother and baby. This study attempts to address the current information gap related to rural mothers and their breastfeeding experience. Health care providers in rural areas face many challenges to providing breastfeeding support and services to mothers. Both rural hospitals and rural communities have breastfeeding gaps. Rural mothers experience access barriers to breastfeeding support; however, some can overcome breastfeeding barriers. Hospital nurses and lactation consultants who demonstrate specific support characteristics can provide rural mothers with breastfeeding support that could significantly impact rural health outcomes. KEYWORDS: Breastfeeding, Rural Mothers, Mothers Breastfeeding, Breastfeeding Barrier