Broberghogan6436

Results of the accuracy and replicability on both synthetic and real network data show that the proposed manifold learning approach outperforms all hub identification methods employed in this evaluation.The emergence of Human Body Communication (HBC) as an alternative to wireless body area networks (WBAN) has led to the development of small sized, energy efficient and more secure wearable and implantable devices forming a network in and around the body. Previous studies claim that though HBC is comparatively more secure than WBAN, nevertheless, the electromagnetic (EM) radiative nature of HBC in >10MHz region makes the information susceptible to eavesdropping. Furthermore, interferences may be picked up by the body due to the human body antenna effect in the 40-400MHz range. Alternatively, electro-quasistatic (EQS) mode of HBC forms an attractive way for covert data transmission in the sub 10MHz region by allowing the signal to be contained within the body. However, there is a gap in the knowledge about the mechanism and sources of interference in this region (crucial in allowing for proper choice of data transmission band). In this paper, the interference coupling modality in the EQS region is explained along with its possible sources. Interferences seen by the wearable in the actual scenario is a non-trivial problem and a suitable measurement EQS HBC setup is designed to recreate it by employing a wearable sized measurement setup having a small ground plane. For the first time, a human biophysical interference pickup model is proposed and interference measurement results using a wearable device are presented up to 250kHz in different environmental settings.Placental vascular abnormalities are associated with a host of pregnancy complications including placenta mediated fetal growth restriction (FGR). Umbilical arterial (UA) Doppler ultrasound velocity waveforms are widely used in the diagnosis of underlying placental vascular abnormalities in pregnancies with suspected FGR, which greatly help prevent stillbirth via ongoing fetal monitoring and timely delivery. However, the sensitivity of UA Doppler diagnosis diminishes late in gestation. Our goal was to present a generalized wave decomposition method to compute forward and reflected components from UA waveforms. A detailed anatomical based model was also developed to explain observed UA flow waveform and to explore how vascular properties affect the shape of flow wave components. Using pregnant mice and high frequency ultrasound microscopy, we obtained in utero Doppler and M- mode ultrasound measurements in 15 fetuses UA. Following ultrasound, the placentas were collected and perfused with contrast agent to obtain high-resolution 3D images of the feto-placental arteries. Model results indicate the significant role of terminal load impedance (capillary and/or veins) in creating positive or negative reflected waveforms. A negative reflected waveform is obtained when terminal impedance increases. This is consistent with the elongated and non-branching terminal villi that are proposed cause the highly abnormal UA waveforms found in early-onset FGR. The significance of these findings for the diagnostic utility of UA Doppler in human pregnancy is that the identification and measurement of wave reflections may aid in discriminating between healthy and abnormal placental vasculature in pregnancies with suspected late-onset FGR.Understanding scientific concepts and processes is critical for veterinary education. This article outlines the impact of blended learning and the use of an analogy on student understanding of the hypothalamic-pituitary-target gland axis over a three-year period. The first-year veterinary physiology course at our institution was modified to incorporate a blended learning approach. An analogy centered around a fast-food restaurant was introduced via an animated video to explain key concepts using an online module. Students completed the module on their own time and class time was optional for asking questions or obtaining clarification as needed. Learning was assessed using the same set of multiple-choice exam questions (MCQs). As hypothesized, students using the online module performed equally well (significantly better for those in the lower quartile) on three summative MCQs to those who received the same information delivered by traditional lecture. Mirdametinib in vitro Student feedback identified positive aspects regarding blended learning using the analogy, including dynamic visuals, ability to work at their own time and pace, and ease of repeating information. Students cited lack of discipline and poor time management as obstacles to completing the module. Changing the anatomy and physiology of the hypothalamus and pituitary gland from static images and text to an animated video significantly improved student's preference for the blended learning approach. Blended learning and the analogy was preferred by 47% of students over the traditional lecture format (21% preferred traditional lecture and 32% were indifferent) and it was more effective in helping students master this important physiological concept.The Swedish response to the COVID-19 pandemic included age-based recommendations of voluntary quarantine specifically for those 70 years of age or older. This paper investigates the experiences of a sudden change of policy in the form of an age restriction that trumped the contemporary active aging ideal. A web-based qualitative survey was conducted in April 2020. Through manual coding of a total of 851 responses, six different ways of relating to the age-based recommendations were identified. The results show that age is not an unproblematic governing principle. Instead, in addition to protecting a vulnerable group, the age-based recommendation meant deprivation of previously assigned individual responsibility and, consequently, autonomy. It is shown how respondents handled this tension through varying degrees of compliance and resistance. Findings highlight the importance of continuously tracking the long-term consequences of age-based policy to avoid negative self-image and poorer health among older adults.