A robust NIfTI image authentication framework to ensure reliable and safe diagnosis.

Advancements in digital medical imaging technologies have significantly impacted the healthcare system. It enables the diagnosis of various diseases through the interpretation of medical images. In addition, telemedicine, including teleradiology, has been a crucial impact on remote medical consultation, especially during the COVID-19 pandemic. However, with the increasing reliance on digital medical images comes the risk of digital media attacks that can compromise the authenticity and ownership of these images. Therefore, it is crucial to develop reliable and secure methods to authenticate these images that are in NIfTI image format. The proposed method in this research involves meticulously integrating a watermark into the slice of the NIfTI image. The Slantlet transform allows modification during insertion, while the Hessenberg matrix decomposition is applied to the LL subband, which retains the most energy of the image. The Affine transform scrambles the watermark before embedding it in the slice. The hybrid combination of these functions has outperformed previous methods, with good trade-offs between security, imperceptibility, and robustness. The performance measures used, such as NC, PSNR, SNR, and SSIM, indicate good results, with PSNR ranging from 60 to 61 dB, image quality index, and NC all close to one. Furthermore, the simulation results have been tested against image processing threats, demonstrating the effectiveness of this method in ensuring the authenticity and ownership of NIfTI images. Thus, the proposed method in this research provides a reliable and secure solution for the authentication of NIfTI images, which can have significant implications in the healthcare industry.

Effect of signal molecules for enhanced production of boeravinone B in shoot cultures of Boerhaavia diffusa (L.)

High performance thin layer chromatography (HPTLC) analysis was used to analyze boeravinone B production in shoot cultures of Boerhaavia diffusa under the influence of different biotic [yeast extract (YE), cellulase (CL)] and abiotic [salicylic acid (SA), jasmonic acid (JA)] signal molecules at different concentrations. Biomass accumulation and boeravinone B production in shoot cultures raised on agar solidified medium were analysed for a period of 30 days to optimize the suitable age of culture for treatment with signal molecules. A maximum yield of boeravinone B (5.74 %) was obtained after 7 days and therefore treatments were performed at a gap of 3, 6 and 9 days. Signal molecules used at varied concentrations differentially influenced the shoot cultures for biomass regeneration and culture growth. Cellulase treatment (0.5 mgl-1) resulted in maximizing biomass (1.30gm) and boeravinone B content (22.7 %) after 6 days of exposure time as compared to other treatments used in the study. Thus the current study can be exploited further for enhancement of boeravinone B from shoot cultures of Boerhaavia diffusa.

Assessing gender responsiveness of COVID-19 response plans for populations in conflict-affected humanitarian emergencies.

BACKGROUND: The COVID-19 pandemic has necessitated rapid development of preparedness and response plans to quell transmission and prevent illness across the world. Increasingly, there is an appreciation of the need to consider equity issues in the development and implementation of these plans, not least with respect to gender, given the demonstrated differences in the impacts both of the disease and of control measures on men, women, and non-binary individuals. Humanitarian crises, and particularly those resulting from conflict or violence, exacerbate pre-existing gender inequality and discrimination. To this end, there is a particularly urgent need to assess the extent to which COVID-19 response plans, as developed for conflict-affected states and forcibly displaced populations, are gender responsive. METHODS: Using a multi-step selection process, we identified and analyzed 30 plans from states affected by conflict and those hosting forcibly displaced refugees and utilized an adapted version of the World Health Organization's Gender Responsive Assessment Scale (WHO-GRAS) to determine whether existing COVID-19 response plans were gender-negative, gender-blind, gender-sensitive, or gender-transformative. RESULTS: We find that although few plans were gender-blind and none were gender-negative, no plans were gender-transformative. Most gender-sensitive plans only discuss issues specifically related to women (such as gender-based violence and reproductive health) rather than mainstream gender considerations throughout all sectors of policy planning. CONCLUSIONS: Despite overwhelming evidence about the importance of intentionally embedding gender considerations into the COVID-19 planning and response, none of the plans reviewed in this study were classified as 'gender transformative.' We use these results to make specific recommendations for how infectious disease control efforts, for COVID-19 and beyond, can better integrate gender considerations in humanitarian settings, and particularly those affected by violence or conflict.

Gender-Based Violence Risk Mitigation by Non-GBV Specialists Prior to and during COVID-19: A Global Survey of Knowledge, Attitudes and Practices of Humanitarian Practitioners.

Available evidence indicates that the COVID-19 pandemic and response measures may lead to increased risk of gender-based violence (GBV), including in humanitarian contexts. This study examined the knowledge, attitudes, and practices of humanitarian practitioners related to GBV risk mitigation approaches during COVID-19 in order to refine current guidance and inform future materials. A global, online cross-sectional survey of humanitarian practitioners was conducted between November 2020 and April 2021. We calculated descriptive statistics and used Chi-square or Fisher's exact tests to compare knowledge, attitudes, and practices among GBV specialists and non-specialists. Of 170 respondents, 58% were female and 44% were GBV specialists. Almost all (95%) of the respondents agreed or strongly agreed that they have a role to play in GBV risk mitigation. Compared to GBV specialists, a higher proportion of non-specialists reported little to no knowledge on GBV risk mitigation global guidance (38% vs. 7%, p < 0.001) and on how to respond to a disclosure of GBV (18% vs. 3%, p < 0.001). Respondents reported several barriers to integrating GBV risk mitigation into their work during COVID-19, including insufficient funding, capacity, knowledge, and guidance. Efforts to mainstream GBV risk mitigation actions should continue and intensify, leveraging the lessons and experiences generated thus far.

Post-operative Non-sustained Ventricular Tachycardia in a COVID-19 Positive Patient After Ketamine and Dexmedetomidine Infusion.

We present a case of an elderly, 75-year-old gentleman with COVID-19 infection and a permanent pacemaker in place, presenting for elective procedure, under monitored anesthesia care with dexmedetomidine. In the postoperative period, while still in the Post Anesthesia Care Unit (PACU), the patient became unresponsive and was found to have episodes of arrhythmia. The patient was managed in the PACU by the anesthesia team. To date, our report is the only one addressing cardiac complications in elderly patients with preexisting cardiac comorbidity, in the immediate perioperative period.

Measuring gender-based violence risk mitigation in humanitarian settings: results from a comprehensive desk review and systematic mapping.

OBJECTIVES: To systematically document measurement approaches used in the monitoring and evaluation of gender-based violence (GBV) risk mitigation activities, categorise the types of available literature produced by sector, identify existing tools and measures and identify knowledge gaps within the humanitarian sector. DESIGN: Systematic mapping and in-depth review. DATA SOURCES: Pubmed, Global Health, PsychInfo, ReliefWeb, OpenGrey (grey literature), Google Scholar, Web of Science (Social Science Index)Eligibility criteria: a structured search strategy was systematically applied to 17 databases as well as registers, websites and other resources to identify materials published between 1 January 2005 and 15 May 2019. DATA EXTRACTION AND SYNTHESIS: Those resources that met the inclusion criteria underwent a comprehensive full-text review. A detailed matrix was developed and key data from each resource were extracted to allow for the assessment of patterns in thematic areas. RESULTS: A total of 2108 documents were screened. Overall, 145 documents and 112 tools were reviewed, representing 10 different humanitarian sectors. While numerous resources exist, many lack sufficient information on how to monitor outputs or outcomes of GBV risk mitigation activities. There is also limited guidance on how to integrate the measurement of GBV risk mitigation into existing monitoring and evaluation frameworks. Those reports that aimed to measure GBV risk mitigation activities mostly employed qualitative methods and few measured the impact of a GBV risk mitigation with robust research designs. CONCLUSIONS: Recent efforts to adapt humanitarian response to COVID-19 have highlighted new and existing challenges for GBV risk mitigation. There is a significant gap in the evidence base around the effectiveness of GBV risk mitigation across all sectors. Understanding and strengthening measurement approaches in GBV risk mitigation remains a critical task for humanitarian response.

Prioritizing vulnerable populations and women on the frontlines: COVID-19 in humanitarian contexts.

The COVID-19 outbreak has been declared a global pandemic and cases are being reported among displaced populations that are particularly vulnerable to infection. Humanitarian workers on the frontlines of the response are working in some of the most challenging contexts and also face elevated risk of contracting COVID-19 and potential stigmatization or violence in the community. Women humanitarians may be at even greater risk, but their protection is dependent on organization-specific policies and procedures. Without gender balance in leadership positions, the specific needs of women may not be prioritized and women may not be included in decision-making or design of responses. Ensuring gender equitable access to personal protective equipment and information is imperative, but additional measures must be put into place to ensure the protection of women on the frontlines while reducing COVID-19 deaths and adverse health effects among displaced populations.