A telehealth nursing intervention to improve the transition from the neonatal intensive care unit to home for infants & caregivers: Preliminary evaluation.

PURPOSE: The purpose of this nurse-led telehealth intervention was to support caregivers and infants during the difficult period of transition from the neonatal intensive care unit (NICU) to home. METHODS: The Baby Steps project was designed using quality improvement methodology, and was implemented in April 2020 at a stand-alone pediatric institution in South Florida. Using a nurse-led telehealth model, follow-up nursing care was provided in the home setting for two weeks after discharge. Any infant cared for in the NICU and discharged to a home setting in the state of Florida was eligible for services. Encounters included assessment, anticipatory guidance, connection with community resources, and general support. Caregiver satisfaction, unplanned emergency care use, and 30-day readmissions were assessed. RESULTS: Within the first 18 months of the program, a total of 378 infants were enrolled, and 74.6% received follow-up services in the home setting (n = 282). Caregivers reported high satisfaction with the program (100% strongly agree or agree). There was a 46% decrease in 30-day readmissions from baseline rates, and a substantial decrease in use of emergency care services within a month of discharge as compared to infants discharged during the same time period who did not receive services (30.9% vs.13.8%). DISCUSSION: This nurse-led intervention was found to be a feasible and highly satisfactory approach to improve NICU patient outcomes and support caregivers during transition from hospital to home. PRACTICE IMPLICATIONS: Nurses can provide post-discharge telehealth support, which not only improves caregiver satisfaction but also decreases readmissions and emergency care use among NICU patients.

A Comparison of the Biomechanical Protection Provided by 2 Cyanoacrylate-Based Skin Protectants: A Comparison Cohort Study.

PURPOSE: The purpose of this study was to evaluate the in-gel strain and tear reduction provided by 2 skin protectant products that were applied as a liquid and allowed to dry, leaving behind a protective layer. DESIGN: Prospective, 3-group comparison cohort study using an in vitro model. METHODS: A fragile agar-based gel with an embedded bead was used in a custom device that applied variable interface pressures of 550, 1080, or 1600 Pa, respectively. The device then imparted 216 N of external shear force in 0.625-mm increments. The resulting strain in the gel was measured by digital image correlation. The strain at tearing was determined by observing the images of the gels and calculating the strain at that point. This approach was used to compare untreated gels to gels treated with one of 2 commercially available cyanoacrylate-based skin protectants. The results from the 3 groups were first analyzed by analysis of variance, followed by Tukey's Honestly Significant Difference test when indicated. RESULTS: We observed a proportional increase in interface pressure and strain that differed among the 3 groups. Specifically, the gels treated with a mixed polymer skin protectant had less pretearing strain than the control gel at both the 1080-Pa load (-15%, P = 3.64 × 10) and 1600 Pa-load (-20%, P = .03). The pure cyanoacrylate-treated gels had less strain than the control at 1080 Pa (-34%, P = 4.25 × 10) and 1600 Pa (-48%, P = 1.07 × 10); it also had less strain than the mixed polymer product at 1080 Pa (-19%, P = 5.38 × 10) and 1600 Pa (-28%, P = 3.88 × 10). In terms of protection from tearing, at an interface pressure of 1080 Pa, the control gel tore 80% of the time, the mixed polymer-treated gel tore 100% of the time, and the pure cyanoacrylate-treated gel did not tear (0/5, P = 8.84 × 10). Under a load of 1600 Pa, 100% of the control and mixed polymer-treated gels tore while none of the cyanoacrylate-treated gels did (P = 2.54 × 10). CONCLUSION: The pure cyanoacrylate-based skin protectant provided the most protection, with consistent reductions in both strain and tearing. Both skin protectants reduced the initial in-gel strain; however, only the pure cyanoacrylate-treated product protected the gel from tears under the conditions tested. These results indicate that cyanoacrylate-based skin protectants can reduce shear strain and tearing in fragile elastic materials.

sRAGE attenuates angiotensin II-induced cardiomyocyte hypertrophy by inhibiting RAGE-NFκB-NLRP3 activation.

OBJECTIVE AND DESIGN: The receptor for advanced glycation endproducts (RAGE) is an innate immunity receptor that has been implicated in the pathogenesis of atherosclerotic cardiovascular disease. However, the possibility that RAGE-mediated signaling is involved in angiotensin II (Ang II)-induced cardiac left ventricular hypertrophy has yet to be investigated. We therefore determined whether RAGE has a role in regulating pathological cardiac hypertrophy. MATERIALS AND SUBJECTS: Protein abundance was estimated using Western blotting and intracellular ROS level and phospho-p65 were detected using fluorescence microscopy. Enzyme-linked immunosorbent assay was used to detect HMGB1 and IL-1ß. All in vitro experiments were performed using H9C2 cells. TREATMENTS: To induce cardiomyocyte hypertrophy, 300 nM Ang II was treated for 48 h and 2 µg/ml sRAGE was treated 1 h prior to addition of Ang II. RESULTS: sRAGE attenuated Ang II-induced cardiomyocyte hypertrophy by downregulating RAGE and angiotensin II type 1 receptor expression. Secretion levels of high motility group box 1 and interleukin-1ß, estimated from a cell culture medium, were significantly reduced by sRAGE. Activated PKCs and ERK1/2, important signals in left ventricular hypertrophy (LVH) development, were downregulated by sRAGE treatment. Furthermore, we found that nuclear factor-κB and NOD-like receptor protein 3 (NLRP3) were associated with RAGE-mediated cardiomyocyte hypertrophy. CONCLUSIONS: In the context of these results, we conclude that RAGE induces cardiac hypertrophy through the activation of the PKCs-ERK1/2 and NF-κB-NLRP3-IL1ß signaling pathway, and suggest that RAGE-NLRP3 may be an important mediator of Ang II-induced cardiomyocyte hypertrophy. In addition, we determined that inhibition of RAGE activation with soluble RAGE (sRAGE) has a protective effect on Ang II-induced cardiomyocyte hypertrophy.

Switching individual quantum dot emission through electrically controlling resonant energy transfer to graphene.

Electrically controlling resonant energy transfer of optical emitters provides a novel mechanism to switch nanoscale light sources on and off individually for optoelectronic applications. Graphene's optical transitions are tunable through electrostatic gating over a broad wavelength spectrum, making it possible to modulate energy transfer from a variety of nanoemitters to graphene at room temperature. We demonstrate photoluminescence switching of individual colloidal quantum dots by electrically tuning their energy transfer to graphene. The gate dependence of energy transfer modulation confirms that the transition occurs when the Fermi level is shifted over half the emitter's excitation energy. The modulation magnitude decreases rapidly with increasing emitter-graphene distance (d), following the 1/d(4) rate trend unique to the energy transfer process to two-dimensional materials.

Singlet exciton fission photovoltaics.

Singlet exciton fission, a process that generates two excitons from a single photon, is perhaps the most efficient of the various multiexciton-generation processes studied to date, offering the potential to increase the efficiency of solar devices. But its unique characteristic, splitting a photogenerated singlet exciton into two dark triplet states, means that the empty absorption region between the singlet and triplet excitons must be filled by adding another material that captures low-energy photons. This has required the development of specialized device architectures. In this Account, we review work to develop devices that harness the theoretical benefits of singlet exciton fission. First, we discuss singlet fission in the archetypal material, pentacene. Pentacene-based photovoltaic devices typically show high external and internal quantum efficiencies. They have enabled researchers to characterize fission, including yield and the impact of competing loss processes, within functional devices. We review in situ probes of singlet fission that modulate the photocurrent using a magnetic field. We also summarize studies of the dissociation of triplet excitons into charge at the pentacene-buckyball (C60) donor-acceptor interface. Multiple independent measurements confirm that pentacene triplet excitons can dissociate at the C60 interface despite their relatively low energy. Because triplet excitons produced by singlet fission each have no more than half the energy of the original photoexcitation, they limit the potential open circuit voltage within a solar cell. Thus, if singlet fission is to increase the overall efficiency of a solar cell and not just double the photocurrent at the cost of halving the voltage, it is necessary to also harvest photons in the absorption gap between the singlet and triplet energies of the singlet fission material. We review two device architectures that attempt this using long-wavelength materials: a three-layer structure that uses long- and short-wavelength donors and an acceptor and a simpler, two-layer combination of a singlet-fission donor and a long-wavelength acceptor. An example of the trilayer structure is singlet fission in tetracene with copper phthalocyanine inserted at the C60 interface. The bilayer approach includes pentacene photovoltaic cells with an acceptor of infrared-absorbing lead sulfide or lead selenide nanocrystals. Lead selenide nanocrystals appear to be the most promising acceptors, exhibiting efficient triplet exciton dissociation and high power conversion efficiency. Finally, we review architectures that use singlet fission materials to sensitize other absorbers, thereby effectively converting conventional donor materials to singlet fission dyes. In these devices, photoexcitation occurs in a particular molecule and then energy is transferred to a singlet fission dye where the fission occurs. For example, rubrene inserted between a donor and an acceptor decouples the ability to perform singlet fission from other major photovoltaic properties such as light absorption.

Development and validation of the self-consciousness type scale.

Introduction: Previous research has highlighted the duality of self-consciousness, which simultaneously plays adaptive and maladaptive roles. This study aims to develop a measure that categorically distinguishes between different types of self-consciousness styles based on the Regulatory Focus Theory (RFT) and examines their relationship with mental health-related indicators. Methods: Data were gathered through an online mental health survey conducted at a University Student Counseling Center in Seoul. The study involved exploratory factor analysis, confirmatory factor analysis, and reliability and validity analysis, which resulted in the development of a 14-question Self-Consciousness Type Scale (SCTS). Results: Both exploratory and confirmatory factor analyses validated the two-factor structure of the SCTS. The fit indices of the final model indicated a good fit, with high internal consistency for both sub-factors. Convergent and discriminant validity were confirmed through correlations between the sub-scales. Cluster analysis identified four distinct subtypes of self-consciousness styles: Growth-oriented, Defensive, Ambivalent, and Low-focus self-consciousness. Group difference analysis revealed significant differences in mental health-related variables among the subtypes, supporting the 2 × 2 model of prevention-focused and promotion-focused self-consciousness. Discussion: The findings support the SCTS as a valid measurement tool capable of distinguishing four distinct types of self-consciousness, aligning with the multidimensional model of self-consciousness. The study's limitations and implications were discussed based on the results, emphasizing the potential applications of the SCTS in mental health research and practice.

Development of dual strain microalgae cultivation system for the direct carbon dioxide utilization of power plant flue gas.

This study aims to propose a biological system that allows for direct utilization of flue gas for carbon dioxide capture and utilization by microalgae. The strain Chlorella sp. ABC-001 is employed for its high growth rate as well as lipid and carbohydrate content. Toxicity tests showed that cell growth was unaffected by NO, but the presence of SO2 showed critical damage on cell growth. Hence, an extremophile alga, Galdieria sulphuraria 5587.1 was applied to build a dual-strain cultivation system to mitigate the effect of SO2 toxicity and increase CO2 capture efficiency. All SO2 was removed by Galdieria culture and the system exhibited stable growth from a simulated flue gas stream containing CO2, NO and SO2. Combined CO2 biofixation rate of 793 mg/L/d and lipid productivity of 113 mg/L/d was achieved. The results showed that this new cultivation system is a promising alternative for reducing CO2 emissions from power plants.

A Comparison of Virtual Reality to Traditional Simulation in Health Professions Education: A Systematic Review.

ABSTRACT: With the increasing availability of virtual reality (VR) and its lower overall costs of use, the objective of this review was to compare VR to traditional simulation in terms of learning outcomes. Studies were included if they met the following criteria: ( a ) research study (of any design), ( b ) focused on learners in health professions, and ( c ) compared VR with traditional simulation. Studies were excluded for the following reasons: ( a ) not a research study, ( b ) focused on learners outside health professions, ( c ) used screen-based or computer-based simulation, ( d ) used a task trainer, and ( e ) did not involve a comparison of VR to traditional simulation. The searches were run on November 11 and 12, 2021, in CINAHL via EBSCO, Ovid Embase, ERIC via EBSCO, IEEE Xplore, Ovid Medline, Ovid PsycINFO, Scopus, and Web of Science Core Collection. Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines guided the review. A team of researchers applied Kirkpatrick's Levels, Melnyk's Levels of Evidence, and Critical Appraisal Skills Programme guidelines to assess the level of evidence and look for bias. Fifteen studies were reviewed including 11 randomized controlled trials. The lead researcher synthesized the study results into 3 categories: (1) traditional simulation performed better, (2) VR performed better, and (3) comparable outcomes. There is insufficient evidence to endorse one form of simulation (VR or traditional) as more effective at this time. The body of evidence contained too few studies to draw meaningful conclusions to answer the guiding question. The studies covered a large range of modalities, learner groups, and healthcare topics, preventing a meta-analysis. Based on the literature and experience, we recommend that VR experiences be proctored, include debriefing, have a backup plan for cybersickness or myopia, and have time and costs documented. Use of VR is likely to expand; thus, research is needed to inform the best contexts and applications.

Attentional state-synchronous peripheral electrical stimulation during action observation induced distinct modulation of corticospinal plasticity after stroke.

Introduction: Brain computer interface-based action observation (BCI-AO) is a promising technique in detecting the user's cortical state of visual attention and providing feedback to assist rehabilitation. Peripheral nerve electrical stimulation (PES) is a conventional method used to enhance outcomes in upper extremity function by increasing activation in the motor cortex. In this study, we examined the effects of different pairings of peripheral nerve electrical stimulation (PES) during BCI-AO tasks and their impact on corticospinal plasticity. Materials and methods: Our innovative BCI-AO interventions decoded user's attentive watching during task completion. This process involved providing rewarding visual cues while simultaneously activating afferent pathways through PES. Fifteen stroke patients were included in the analysis. All patients underwent a 15 min BCI-AO program under four different experimental conditions: BCI-AO without PES, BCI-AO with continuous PES, BCI-AO with triggered PES, and BCI-AO with reverse PES application. PES was applied at the ulnar nerve of the wrist at an intensity equivalent to 120% of the sensory threshold and a frequency of 50 Hz. The experiment was conducted randomly at least 3 days apart. To assess corticospinal and peripheral nerve excitability, we compared pre and post-task (post 0, post 20 min) parameters of motor evoked potential and F waves under the four conditions in the muscle of the affected hand. Results: The findings indicated that corticospinal excitability in the affected hemisphere was higher when PES was synchronously applied with AO training, using BCI during a state of attentive watching. In contrast, there was no effect on corticospinal activation when PES was applied continuously or in the reverse manner. This paradigm promoted corticospinal plasticity for up to 20 min after task completion. Importantly, the effect was more evident in patients over 65 years of age. Conclusion: The results showed that task-driven corticospinal plasticity was higher when PES was applied synchronously with a highly attentive brain state during the action observation task, compared to continuous or asynchronous application. This study provides insight into how optimized BCI technologies dependent on brain state used in conjunction with other rehabilitation training could enhance treatment-induced neural plasticity.

Enhancing microbial CO2 electrocatalysis for multicarbon reduction in a wet amine-based catholyte.

Microbial CO2 electroreduction (mCO2ER) offers a promising approach for producing high-value multicarbon reductants from CO2 by combining CO2 fixing microorganisms with conducting materials (i. e., cathodes). However, the solubility and availability of CO2 in an aqueous electrolyte pose significant limitations in this system. This study demonstrates the efficient production of long-chain multicarbon reductants, specifically carotenoids (~C40), within a wet amine-based catholyte medium during mCO2ER. Optimizing the concentration of the biocompatible CO2 absorbent, monoethanolamine (MEA), led to enhanced CO2 fixation in the electroautotroph bacteria. Molecular biological analyses revealed that MEA in the catholyte medium redirected the carbon flux towards carotenoid biosynthesis during mCO2ER. The faradaic efficiency of mCO2ER with MEA for carotenoid production was 4.5-fold higher than that of the control condition. These results suggest the mass transport bottleneck in bioelectrochemical systems could be effectively addressed by MEA-assissted mCO2ER, enabling highly efficient production of valuable products from CO2.

Improving Telenursing Skills Through Simulation-Based Education.

Background: Preparing graduate-level nurses to provide care via telehealth could both increase access to care and decrease healthcare costs. However, many nursing schools do not provide telehealth experiences, especially at the graduate level. Objective: The aim of this project is to incorporate telehealth simulations in the doctor of nursing practice (DNP) curriculum at the University of Miami School of Nursing and Health Studies. Methods: This quality improvement project used a posttest-only design. The Ottawa Model of Research Use guided the project. DNP students completed a peer-to-peer telehealth simulation scenario via Zoom. Results: DNP students demonstrated confidence with an average score of 2.875 out of 3. DNP students' teaching performance scores were 2.7 out of 3. DNP students demonstrated effective overall telehealth performance with a mean score of 13.74 out of 15. Conclusion: DNP students may benefit from increased opportunities to practice telehealth, including the use of peer-to-peer simulation, to be aptly prepared for contemporary nursing practice.

Epigenetic Modulations for Prevention of Infectious Diseases in Shrimp Aquaculture.

Aquaculture assumes a pivotal role in meeting the escalating global food demand, and shrimp farming, in particular, holds a significant role in the global economy and food security, providing a rich source of nutrients for human consumption. Nonetheless, the industry faces formidable challenges, primarily attributed to disease outbreaks and the diminishing efficacy of conventional disease management approaches, such as antibiotic usage. Consequently, there is an urgent imperative to explore alternative strategies to ensure the sustainability of the industry. In this context, the field of epigenetics emerges as a promising avenue for combating infectious diseases in shrimp aquaculture. Epigenetic modulations entail chemical alterations in DNA and proteins, orchestrating gene expression patterns without modifying the underlying DNA sequence through DNA methylation, histone modifications, and non-coding RNA molecules. Utilizing epigenetic mechanisms presents an opportunity to enhance immune gene expression and bolster disease resistance in shrimp, thereby contributing to disease management strategies and optimizing shrimp health and productivity. Additionally, the concept of epigenetic inheritability in marine animals holds immense potential for the future of the shrimp farming industry. To this end, this comprehensive review thoroughly explores the dynamics of epigenetic modulations in shrimp aquaculture, with a particular emphasis on its pivotal role in disease management. It conveys the significance of harnessing advantageous epigenetic changes to ensure the long-term viability of shrimp farming while deliberating on the potential consequences of these interventions. Overall, this appraisal highlights the promising trajectory of epigenetic applications, propelling the field toward strengthening sustainability in shrimp aquaculture.

Automatic classification of microplastics and natural organic matter mixtures using a deep learning model.

Several preprocessing procedures are required for the classification of microplastics (MPs) in aquatic systems using spectroscopic analysis. Procedures such as oxidation, which are employed to remove natural organic matter (NOM) from MPs, can be time- and cost-intensive. Furthermore, the identification process is prone to errors due to the subjective judgment of the operators. Therefore, in this study, deep learning (DL) was applied to improve the classification accuracies for mixtures of microplastic and natural organic matter (MP-NOM). A convolutional neural network (CNN)-based DL model with a spatial attention mechanism was adopted to classify substances from their Raman spectra. Subsequently, the classification results were compared with those obtained using conventional Raman spectral library software to evaluate the applicability of the model. Additionally, the crucial spectral band for training the DL model was investigated by applying gradient-weighted class activation mapping (Grad-CAM) as a post-processing technique. The model achieved an accuracy of 99.54%, which is much higher than the 31.44% achieved by the Raman spectral library. The Grad-CAM approach confirmed that the DL model can effectively identify MPs based on their visually prominent peaks in the Raman spectra. Furthermore, by tracking distinctive spectra without relying solely on visually prominent peaks, we can accurately classify MPs with less prominent peaks, which are characterized by a high standard deviation of intensity. These findings demonstrate the potential for automated and objective classification of MPs without the need for NOM preprocessing, indicating a promising direction for future research in microplastic classification.

Simultaneous enhancement of lipid biosynthesis and solvent extraction of Chlorella using aminoclay nanoparticles.

Magnesium aminoclay nanoparticles (MgANs) exert opposing effects on photosynthetic microalgae by promoting carbon dioxide (CO2) uptake and inducing oxidative stress. This study explored the potential application of MgAN in the production of algal lipids under high CO2 concentrations. The impact of MgAN (0.05-1.0 g/L) on cell growth, lipid accumulation, and solvent extractability varied among three tested oleaginous Chlorella strains (N113, KR-1, and M082). Among them, only KR-1 exhibited significant improvement in both total lipid content (379.4 mg/g cell) and hexane lipid extraction efficiency (54.5%) in the presence of MgAN compared to those of controls (320.3 mg/g cell and 46.1%, respectively). This improvement was attributed to the increased biosynthesis of triacylglycerols and a thinner cell wall based on thin-layer chromatography and electronic microscopy, respectively. These findings suggest that using MgAN with robust algal strains can enhance the efficiency of cost-intensive extraction processes while simultaneously increasing the algal lipid content.

The Influence of Life Stress and Sleep Disturbance on White Matter Integrity.

OBJECTIVE: This study investigated whether sleep and stress mutually interact to induce changes in white matter integrity. METHODS: Diffusion tensor imaging (DTI) was conducted on 36 participants (male=22, female=14; mean age=38.33±12.78 years). Participants were divided into three groups depending on their sleep quality and stress levels: poor sleepers with stress, poor sleepers without stress, and good sleepers. Sleep quality and stress level were evaluated using the Pittsburgh Sleep Quality Index and the Life Experiences Survey, respectively. Fractional anisotropy (FA) values were calculated employing DTI tractography. RESULTS: After controlling for age and sex, poor sleepers with stress exhibited a lower FA of the left inferior cerebellar peduncle (ICP) than did poor sleepers without stress (t=2.81, p=0.02). Poor sleepers without stress showed a higher FA of the right middle longitudinal fasciculus (MdLF) than did good sleepers (t=3.35, p=0.006). CONCLUSION: The current study reports the effects of sleep, stress, and their interaction on the white matter integrities of the ICP and MdLF. ICP change seems to be associated with sleep disturbances related to stress, while MdLF change would be associated with sleep disturbances unrelated to stress.

Singlet exciton fission in nanostructured organic solar cells.

Singlet exciton fission is an efficient multiexciton generation process in organic molecules. But two concerns must be satisfied before it can be exploited in low-cost solution-processed organic solar cells. Fission must be combined with longer wavelength absorption in a structure that can potentially surpass the single junction limit, and its efficiency must be demonstrated in nanoscale domains within blended devices. Here, we report organic solar cells comprised of tetracene, copper phthalocyanine, and the buckyball C(60). Short wavelength light generates singlet excitons in tetracene. These are subsequently split into two triplet excitons and transported through the phthalocyanine. In addition, the phthalocyanine absorbs photons below the singlet exciton energy of tetracene. To test tetracene in nanostructured blends, we fabricate coevaporated bulk heterojunctions and multilayer heterojunctions of tetracene and C(60). We measure a singlet fission efficiency of (71 ± 18)%, demonstrating that exciton fission can efficiently compete with exciton dissociation on the nanoscale.

Online learning performance and engagement during the COVID-19 pandemic: Application of the dual-continua model of mental health.

The COVID-19 pandemic has led to an abrupt transition from face-to-face learning to online learning, which has also affected the mental health of college students. In this study, we examined the relationship between students' adjustment to online learning and their mental health by using the Dual-Continua Model. The model assumes that mental disorder and mental well-being are related yet distinct factors of mental health. For this purpose, 2,933 college students completed an online survey around the beginning of the Fall semester of 2020 (N = 1,724) and the Spring semester of 2021 (N = 1,209). We assessed participants' mental well-being, mental disorders, and academic distress by means of the online survey. In addition, we incorporated grades and log data accumulated in the Learning Management System (LMS) as objective learning indicators of academic achievement and engagement in online learning. Results revealed that two dimensions of mental health (i.e., mental well-being and mental disorder) were independently associated with all objective and subjective online learning indicators. Specifically, languishing (i.e., low levels of mental well-being) was negatively associated with student engagement derived from LMS log data and academic achievement and was positively associated with self-reported academic distress even after we controlled for the effects of mental disorder. In addition, mental disorder was negatively related to student engagement and academic achievement and was positively related to academic distress even after we controlled for the effects of mental well-being. These results remained notable even when we controlled for the effects of sociodemographic variables. Our findings imply that applying the Dual-Continua Model contributes to a better understanding of the relationship between college students' mental health and their adaptation to online learning. We suggest that it is imperative to implement university-wide interventions that promote mental well-being and alleviate psychological symptoms for students' successful adjustment to online learning.

Asthma academy: A student nurse-led telehealth education program for low-income family caregivers of children with asthma.

AIMS: The aims of the Asthma Academy study were to (1) evaluate the telehealth performance of DNP students, (2) evaluate the perceived learning experience of DNP students and (3) investigate whether an association exists related to student performance and family caregiver outcomes. DESIGN: A descriptive study was conducted with doctor of nursing practice students. METHODS: Students conducted telehealth visits to help family caregivers of children with asthma and were rated on their performance by two faculty members using a rubric. Student perception data were gathered via survey. RESULTS: Out of a total possible score of 15 points, the mean telehealth performance score of students was 13.38 points. Students indicated the telehealth experience was valuable and that they were satisfied with their learning. This model of leveraging telehealth to bridge nursing students to the community may be adapted to help family caregivers of children with various disease foci.

Gray Matter Volume of Thalamic Nuclei in Traumatized North Korean Refugees.

The current study investigated differences in the regional gray matter (GM) volume of specific thalamic nuclei between North Korean (NK) refugees and South Korean (SK) residents. It also investigated associations between thalamic GM volume changes and psychological symptoms. Psychological evaluations and magnetic resonance imaging were conducted on 50 traumatized NK refugees and 55 non-traumatized SK residents. The regional GM volume ratios in the bilateral thalami were calculated for all participants using voxel-based morphometry. NK refugees showed greater GM volume ratios in the right medial-posterior nuclei and left medial nuclei compared with SK residents. NK refugees also exhibited more depressive symptoms than SK residents. However, increased GM volume ratios in both right medial-posterior nuclei and left medial nuclei were correlated with fewer depressive symptoms in NK refugees, but not in SK residents. The findings indicate that traumatized NK refugees had increased GM volumes in the right medial-posterior nuclei and left medial nuclei, which were associated with fewer depressive symptoms. The enlarged specific thalamic nuclei presented among refugees in the current study might be associated with a neurobiological compensatory mechanism that prevents the development or progression of depression in refugees after repetitive traumatic experiences.