Observations on recurrent vomiting with acetonuria in children

It would seem justifiable, therefore, to present the following clinical observations to demonstrate that:(1) The presence of ketosis is the essential feature of recurrent vomiting, the latter being secondary to a high concentration of acetone. This condition is invariably met with in a definite type of child who shows evidence of nervous hyperexcitability even from the first few weeks of life. (3) This physical type may be hereditarily transmitted.A discussion of the findings follows, and the relationship between ketonuria and the neuro-labile character is examined in an attempt to find an explanation for the occurrence of this condition

Examining Perception and Understanding of Stroke and its Risk Factors in a Rural Population

Stroke, also sometimes referred to as a brain attack, occurs when there is a blockage in blood supply to the brain or when a blood vessel bursts within the brain (CDC, 2022). Rural populations have a higher incidence of stroke and higher stroke mortality in the United States (Howard et al., 2017). Although there is a higher incidence rate of stroke in rural populations, researchers have also found that these populations appear to have limited knowledge on stroke and its risk factors. The current study employed a non-experimental descriptive design that explored stroke knowledge in adults residing in rural populations in the United States via an online survey. The survey consisted of multiple choice, multiple selection, short answer, and true/false questions that examined the participants’ demographic information such as age, race, ethnicity, gender, education levels, current health status (i.e., current, and past diagnoses), and current city of residence, as well as a knowledge check designed to assess participants’ knowledge of risk factors and warning signs of stroke. This study showed that respondents residing in rural populations with less stroke risk factors had less knowledge of stroke risk factors. Improving stroke knowledge in rural populations is crucial for reducing stroke-related mortality in rural communities

Language and Dyslexia: The Influence of Morphological Awareness on the Literacy Development of Children with Dyslexia

Dyslexia affects approximately 7-10% of the English-speaking population (Kalashnikova et al., 2019) and is a “persistent and unexplained difficulty in achieving accurate and/or fluent word recognition skills, despite adequate intelligence and opportunity” (Waldie et al., 2017, p. 29). Children at a familial risk for developing dyslexia may begin showing impairments in their literacy skills as early as the age of two, which often affects scholastic achievement, as children are expected to be proficient in their native language by five years old. Children with dyslexia face impairments in morphological awareness, the “explicit awareness and ability to manipulate and reflect upon the morphemic structure of words” (Law & Ghesquière, 2017, p.47), and lag behind their age-matched peers in developing reading and spelling accuracy. If children with dyslexia can be supported in their development of morphological awareness skills, then they may also show improvements in their ability to read and spell accurately

Analysis of Non-Kinship Foster Parent Training Needs and Their Support of Foster Youth: An Occupational Therapy Perspective

This poster discusses the training needs of non-kinship foster parents and how they support the youth in their care. A quantitative survey was used to find relationships between experience fostering and foster parent preparedness or desire for additional training. The survey also included a section for participants to write down their training needs; themes from this question are found on the poster. The poster further discusses future recommendations and implications for OT practice in working with this population.https://soar.usa.edu/otdcapstonesfall2023/1007/thumbnail.jp

Quasi two-dimensional Fermi surface topography of the delafossite PdRhO2

The authors acknowledge the financial support from the European Research Council (through the QUESTDO project), the Engineering and Physical Sciences Research Council UK (Grants No. EP/I031014/1 and No. EP/L015110/1), the Royal Society, and the Max-Planck Society.We report on a combined study of the de Haas-van Alphen effect and angle resolved photoemission spectroscopy on single crystals of the metallic delafossite PdRhO2 rounded off by ab initio band structure calculations. A high sensitivity torque magnetometry setup with SQUID readout and synchrotron-based photoemission with a light spot size of ~50μm enabled high resolution data to be obtained from samples as small as 150 × 100 × 20(μm)3. The Fermi surface shape is nearly cylindrical with a rounded hexagonal cross section enclosing a Luttinger volume of 1.00(1) electrons per formula unit.PostprintPeer reviewe

Computing noncommutative Chern-Simons theory radiative corrections on the back of an envelope

We show that the renormalized U(N) noncommutative Chern-Simons theory can be defined in perturbation theory so that there are no loop corrections to the 1PI functional of the theory in an arbitrary homogeneous axial (time-like, light-like or space-like) gauge. We define the free propagators of the fields of the theory by using the Leibbrandt-Mandelstam prescription --which allows Wick rotation and is consistent with power-counting-- and regularize its Green functions with the help of a family of regulators which explicitly preserve the infinitesimal vector Grassmann symmetry of the theory. We also show that in perturbation theory the nonvanishing Green functions of the elementary fields of the theory are products of the free propagators.Comment: In memory of Professor G. Leibbrand

Bioactivity in silica/poly(γ-glutamic acid) sol–gel hybrids through calcium chelation

Bioactive glasses and inorganic/organic hybrids have great potential as biomedical implant materials. Sol–gel hybrids with interpenetrating networks of silica and biodegradable polymers can combine the bioactive properties of a glass with the toughness of a polymer. However, traditional calcium sources such as calcium nitrate and calcium chloride are unsuitable for hybrids. In this study calcium was incorporated by chelation to the polymer component. The calcium salt form of poly(γ-glutamic acid) (γCaPGA) was synthesized for use as both a calcium source and as the biodegradable toughening component of the hybrids. Hybrids of 40 wt.% γCaPGA were successfully formed and had fine scale integration of Ca and Si ions, according to secondary ion mass spectrometry imaging, indicating a homogeneous distribution of organic and inorganic components. 29Si magic angle spinning nuclear magnetic resonance data demonstrated that the network connectivity was unaltered with changing polymer molecular weight, as there was no perturbation to the overall Si speciation and silica network formation. Upon immersion in simulated body fluid a hydroxycarbonate apatite surface layer formed on the hybrids within 1 week. The polymer molecular weight (Mw 30–120 kDa) affected the mechanical properties of the resulting hybrids, but all hybrids had large strains to failure, >26%, and compressive strengths, in excess of 300 MPa. The large strain to failure values showed that γCaPGA hybrids exhibited non-brittle behaviour whilst also incorporating calcium. Thus calcium incorporation by chelation to the polymer component is justified as a novel approach in hybrids for biomedical materials