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Nicolas Postel-Vinay,1,2 Jiali-Delphine Shao,3 Anne Pinton,4 Aude Servais,5 Nicole Gebara,1 Laurence Amar1 1Hypertension Unit, ESH Excellence Center, Hôpital Européen Georges Pompidou, APHP, Paris, France; 2Hospital at Home, Fondation Santé Service, Levallois, France; 3Faculté de médecine de l’Université Paris Saclay, Le Kremlin Bicêtre, France; 4Department of Obstetrics and Gynecology, Trousseau Hospital, APHP, Sorbonne University, Paris, France; 5Nephrology and Transplantation Department, Necker Hospital, APHP, Paris, FranceCorrespondence: Nicolas Postel-Vinay, Email nicolas.postel-vinay@aphp.frIntroduction: Hy-Result is a rule management system designed to help patients to be compliant with the home blood pressure measurement (HBPM) monitoring schedule and to understand their BP readings. The aim of the Hy-Result e-Health prospective study is to evaluate the practice and experience of women using the Hy-Result coaching app for self-interpretation of BP readings during and after pregnancy.Methods: Participants were asked to: i) measure their BP at home; ii) use the Hy-Result app and send their PDF report to the researcher; iii) answer anonymously to 3 online independent questionnaires (Q).Results: A total of 107 women accepted to measure their BP and use the app. Among them 82 (77%) performed HBPM and used successfully the system and 72 (88%) shared to the investigator their PDF report by email. Of these, 95% declared the software was “easy” or “very easy” to use; 93% believe the software helps them to monitor their BP more effectively (74% agree, 18% somewhat agree); 94% that the color code classification was “clear”; 76 (93%) affirmed that the app helped them when consulting their physician for their BP evaluation. Majority (87%) perceived the software to be reliable. Furthermore, 71 (87%) said they trust the system and 51 (62%) declared that performing HBPM and self-interpret their readings was “reassuring” whereas 6 (7%) felt that it was “a concern”.Conclusion: This study shows that the majority (88%) of pregnant women performed HBPM and successfully used the Hy-Result software for self-interpretation of the BP readings. The use of the validated Hy-Result system by pregnant women may thus be recommended in common practice by healthcare professionals and patient associations.Keywords: hypertension, home blood pressure monitoring, health informatics, pregnancy, e-health, telemedicine, self-monitoring

Despite their high specific capacitances, metal oxide-based electrodes still do not meet the commercial standard for cycling stability owing to their inherent poor electronic conductivity and morphological structural changes during charging and discharging. A superior specific capacitance, accompanied with long-term cycling durability, is pivotal for supercapacitor application. In this research article, different precursor volume ratios of copper–nickel solution were used for the construction of binder-free 3D marigold flower-like copper–nickel oxide (3D-MCuNi oxide) electrodes via a hydrothermal method. XPS, EDAX, and TEM studies reveal that the increased amount of O-vacancies in the marigold flowers of the copper–nickel oxide composite is caused by a significant number of imperfections in the structure and might enhance their electrical conductivity. The marigold flower-like morphological structure exhibits electrode–electrolyte ions with significantly high hydrophilicity and better electrochemical diffusion performance. The optimized volume ratio of Cu : Ni = 1 : 1 for 3D-MCuNi oxide composite nanomaterials demonstrates an excellent specific capacitance of 2387.15 F g−1 at a current density of 0.6 mA cm−2 and 93% cycling capacitive retention performance up to 10 000 cycles. Additionally, a flexible hybrid supercapacitor device (HSD) was assembled using reduced graphene oxide (rGO) and 3D-MCuNi oxide as the negative and positive electrode, respectively, which revealed excellent electrochemical charge storage performance with a high energy density of 120.9 W h kg−1, power density of 34.82 kW kg−1, and superior cycling stability of 87% retention. Thus, the 3D-MCuNi oxide composite potential materials are more attractive for charge storage supercapacitor applications. [ABSTRACT FROM AUTHOR]

The charge storage application has witnessed a dramatic increase in terms of the short charge–discharge time of supercapacitors, specifically in highly active electrode materials. For charge storage supercapacitor applications, highly porous materials are preferable. In this research article, thiourea acts as a leaving agent in the preparation of the porous 3D spherical architecture of NiO nanomaterials. The influence of the molar concentration of thiourea on structural, morphological, and electrochemical charge storage applications has been studied. X-ray diffraction reveals a cubic structure with Fm3¯m space group for the NiO nanomaterials. The scanning electron microscopy (SEM) images show the porous 3D columnar spherical structure, and FTIR has been used for the optical analysis of the NiO materials. The 1D–3D columnar-spherical structure of the NiO flakes exhibits a high electrochemical charge storage pseudocapacitive nature. The optimized 0.40 M thiourea–NiO (Th–NiO) nanomaterial is highly hydrophilic, exhibiting a maximum specific capacity of 171.1 mA h g−1 at 5 mV s−1 by CV and 148.5 mA h g−1 at 0.2 mA cm−2 by GCD. The highest power, energy densities are 0.96 kW kg−1 and 6.66 W h kg−1 with the highest charge–discharge cycle rating of 92% up to 5000 cycles of the asymmetric NiO//rGO hybrid supercapacitor device. [ABSTRACT FROM AUTHOR]

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