LF3PFL: A Practical Privacy-Preserving Federated Learning Algorithm Based on Local Federalization Scheme.

In the realm of federated learning (FL), the exchange of model data may inadvertently expose sensitive information of participants, leading to significant privacy concerns. Existing FL privacy-preserving techniques, such as differential privacy (DP) and secure multi-party computing (SMC), though offering viable solutions, face practical challenges including reduced performance and complex implementations. To overcome these hurdles, we propose a novel and pragmatic approach to privacy preservation in FL by employing localized federated updates (LF3PFL) aimed at enhancing the protection of participant data. Furthermore, this research refines the approach by incorporating cross-entropy optimization, carefully fine-tuning measurement, and improving information loss during the model training phase to enhance both model efficacy and data confidentiality. Our approach is theoretically supported and empirically validated through extensive simulations on three public datasets: CIFAR-10, Shakespeare, and MNIST. We evaluate its effectiveness by comparing training accuracy and privacy protection against state-of-the-art techniques. Our experiments, which involve five distinct local models (Simple-CNN, ModerateCNN, Lenet, VGG9, and Resnet18), provide a comprehensive assessment across a variety of scenarios. The results clearly demonstrate that LF3PFL not only maintains competitive training accuracies but also significantly improves privacy preservation, surpassing existing methods in practical applications. This balance between privacy and performance underscores the potential of localized federated updates as a key component in future FL privacy strategies, offering a scalable and effective solution to one of the most pressing challenges in FL.

Understanding health system resilience in responding to COVID-19 pandemic: experiences and lessons from an evolving context of federalization in Nepal.

INTRODUCTION: The COVID-19 pandemic has tested the resilience capacities of health systems worldwide and highlighted the need to understand the concept, pathways, and elements of resilience in different country contexts. In this study, we assessed the health system response to COVID-19 in Nepal and examined the processes of policy formulation, communication, and implementation at the three tiers of government, including the dynamic interactions between tiers. Nepal was experiencing the early stages of federalization reform when COVID-19 pandemic hit the country, and clarity in roles and capacity to implement functions were the prevailing challenges, especially among the subnational governments. METHODS: We adopted a cross-sectional exploratory design, using mixed methods. We conducted a desk-based review of all policy documents introduced in response to COVID-19 from January to December 2020, and collected qualitative data through 22 key informant interviews at three tiers of government, during January-March 2021. Two municipalities were purposively selected for data collection in Lumbini province. Our analysis is based on a resilience framework that has been developed by our research project, ReBUILD for Resilience, which helps to understand pathways to health system resilience through absorption, adaptation and transformation. RESULTS: In the newly established federal structure, the existing emergency response structure and plans were utilized, which were yet to be tested in the decentralized system. The federal government effectively led the policy formulation process, but with minimal engagement of sub-national governments. Local governments could not demonstrate resilience capacities due to the novelty of the federal system and their consequent lack of experience, confusion on roles, insufficient management capacity and governance structures at local level, which was further aggravated by the limited availability of human, technical and financial resources. CONCLUSIONS: The study findings emphasize the importance of strong and flexible governance structures and strengthened capacity of subnational governments to effectively manage pandemics. The study elaborates on the key areas and pathways that contribute to the resilience capacities of health systems from the experience of Nepal. We draw out lessons that can be applied to other fragile and shock-prone settings.

Policy change to improve access to safe abortion care in federal Nepal.

In Nepal's constitution, safe abortion care is recognized as an essential component of a comprehensive approach to fulfill individuals' sexual and reproductive health and rights. In the current context of transition to a three-level governance (federal, provincial, and local), there are opportunities to accelerate decentralization and devolution of decision-making power, increase access to and coverage of safe abortion services, and improve health outcomes. This article documents the processes and results of the policy change undertaken by the Ministry of Health and Population in collaboration with development partners to decentralize the approval process of safe abortion sites and providers with the objective to increase access to and coverage of safe abortion services. With the decentralization of certification, the approval process for safe abortion service sites and providers has become simpler, less time consuming, and less expensive by reducing cost of traveling to Kathmandu or approaching authorities at the federal level. This has resulted in expanding safe abortion services across the country including remote areas with marginalized populations. Evidence-based advocacy enabled policy change for decentralization of the approval process. Collaboration among stakeholders has been vital for implementing the policy change, including issuing directives from the federal to provincial levels and capacity strengthening of provincial level officials in understanding the requirements for approval of sites and providers.

How effectively are social accountability mechanisms being applied in mental health services within the newly federalized health system of Nepal? A multi-stakeholder qualitative study.

BACKGROUND: The burden of mental health problems and inequalities in healthcare has emerged as critical issues, in Nepal. Strengthened citizen-driven social accountability (SA) is an effective strategy for building equitable health systems and providing quality healthcare services to all, yet SA in mental health is an under-researched area in Nepal. OBJECTIVE: This study explores changes in mental health service delivery in the re-configured federal health system and discusses the functioning and effectiveness of SA in the federalized context of Nepal. METHOD: This case study research used a qualitative approach to data collection. We conducted Key Informant Interviews (KIIs), and Focus Group Discussions (FGDs) with local stakeholders including people with experience of mental health problems. The audio-recorded interviews and discussions were transcribed and analyzed using a thematic content method. RESULTS: A total of 49 participants were recruited, and 17 participated in interviews and 32 participated in six focus group discussions. From the data, eight themes emerged: Policy challenges in mental health, Governance and service delivery, Tokenism in the application of social accountability processes, Weak role of key actors in promoting accountability, Complaints and response, Discriminatory health and welfare system, Public attitudes and commitment towards mental health, and No differences experienced by the change to a federal system. It was found that existing health policies in Nepal inadequately cover mental health issues and needs. The prevailing laws and policies related to mental health were poorly implemented. There is a lack of clarity at different levels of government about the roles and responsibilities in the delivery of mental health services. Poor intra- and inter-governmental coordination, and delays in law-making processes negatively impacted on mental health service delivery. SA mechanisms such as social audits and public hearings exist within government health systems, however, application of these in mental health services was found poor. Rights-holders with mental health problems had not experienced any change in the provision of healthcare services for them even after the federalization. CONCLUSION: Mental health is insufficiently addressed by the health policies in Nepal, and SA mechanisms appeared to be rarely institutionalized to promote good governance and provide effective healthcare services to vulnerable populations. The provision of more equitable services and honest implementation of SA tools may foster greater accountability and thereby better service delivery for people with mental health problems.

Impact of federalization for health financing and workforce in Nepal.

The adoption of its 2015 constitution has converted Nepal to a federal government while simultaneously resulted in significant reforms of the health system in Nepal in terms of both structure and commitment. In this commentary, we review evidence ranging from health financing to health workforce development to show that the impact of federalization on Nepal's health system and its efforts to achieve equitable and affordable universal health care have been mixed. On the one hand, careful efforts of the federal government to support subnational governments during the transition appears to have avoided serious disruption, subnational governments have successfully taken on the financial burden of the health system, and increase subnational control has allowed more flexible adaptation to changing needs than might have otherwise been possible. On the other hand, financing resource and ability disparities across subnational governments contributes to significant disparities in workforce development, and subnational authorities appear to have underestimated significant health issues (e.g. NCDs) in their budgets. We then provide three recommendations to improve the success of the Nepalese system: (1) to assess whether the services covered by health financing and insurance schemes like the National Health Insurance Program adequately address the needs of the rising burden of NCDs in Nepal, (2) to set clear minimum requirements on key metrics for subnational health systems, and (3) to extend grant programs to address resource disparities.

Política interministerial para la investigación, transferencia y fortalecimiento de la salud en territorio, una experiencia federal / Interministerial Policy for Research, Transfer and Strengthening of Health in the Territory, a Federal Experience

RESUMEN INTRODUCCIÓN: En marzo de 2023, en el marco del "Convenio Marco de Cooperación y Asistencia Técnica Mutua - MSAL/MINCYT", se creó el "Proyecto Federal Interministerial de Investigación, Transferencia y Fortalecimiento para la Salud en Territorio". El objetivo fue presentar un proceso de trabajo innovador entre dos ministerios, que sienta las bases para configurar un modelo de gestión de las políticas de investigación en salud con asiento federal y tendiente a potenciar las funciones y capacidades institucionales de cada sector. MÉTODOS: La coordinación del Proyecto se encuentra a cargo de un Comité Interministerial. En 2023 se realizó la Convocatoria para la presentación de un proyecto anual, que consta de dos componentes: A) Línea de investigación y transferencia; y B) Plan de fortalecimiento de las capacidades institucionales de las áreas de investigación de los ministerios de salud jurisdiccionales agrupadas en la Red Ministerial de Áreas de Investigación en Salud de Argentina. RESULTADOS: Las 24 jurisdicciones presentaron sus proyectos, y todos ellos resultaron aprobados. La estrategia tuvo un impacto en el fortalecimiento de los mecanismos de trabajo conjunto de dos ministerios nacionales, que debieron armonizar modalidades de gestión entre las áreas de investigación en salud y las representaciones de CyT en el ámbito jurisdiccional y entre los decisores en materia sanitaria y los actores del sistema científico. DISCUSIÓN: Esta experiencia contribuye a fortalecer las capacidades estatales, a la vez que permite identificar aspectos que requieren continuar siendo trabajados para consolidar nuevas modalidades de gestión interministeriales.

ABSTRACT INTRODUCTION: In March 2023, within the framework of the "Framework Agreement for Cooperation and Mutual Technical Assistance - MSAL/MINCYT", the "Federal Interministerial Project of Research, Transfer and Strengthening for Health in the Territory" was created. The objective was to present an innovative work process between the Ministry of Health (MSAL) and the Ministry of Science, Technology and Innovation (MINCYT), that lays the foundations for a management model of health research policies with a federal approach and aimed at enhancing the institutional functions and capacities of each sector. METHODS: The Project was coordinated by an Interministerial Committee. In 2023 there was a Call for the presentation of an annual project that consists of two components: A) Line of research and transfer; and B) Plan to strengthen the institutional capacities of the research areas of the jurisdictional health ministries grouped in REMINSA. RESULTS: The 24 jurisdictions presented their projects, and all of them were approved. The strategy strengthened the joint work mechanisms of two national ministries, that had to harmonize management patterns between health research areas and S&T representations at the jurisdictional level and between health decision-makers and the actors of the scientific system. DISCUSSION: This experience contributes to strengthening state capacities, while allowing to identify aspects that require continued work to reinforce new interministerial management patterns.

Transforming Nepal's primary health care delivery system in global health era: addressing historical and current implementation challenges.

Nepal's Primary Health Care (PHC) is aligned vertically with disease control programs at the core and a vast network of community health workers at the periphery. Aligning with the globalization of health and the factors affecting global burden of diseases, Nepal echoes the progressive increase in life expectancy, changes in diseases patterns, including the current impact of COVID-19. Nepal's health system is also accommodating recent federalization, and thus it is critical to explore how the primary health care system is grappling the challenges amidst these changes. In this review, we conducted a narrative synthesis of literature to explore the challenges related to transformation of Nepal's primary health care delivery system to meet the demands incurred by impact of globalization and recent federalization, covering following database: PubMED, Embase and Google Scholar. Of the 49 articles abstracted for full text review, 37 were included in the analyses. Existing theories were used for constructing the conceptual framework to explain the study findings. The results are divided into four themes. Additional searches were conducted to further support the narrative synthesis: a total of 46 articles were further included in the articulation of main findings. Transforming Nepal's primary health care system requires a clear focus on following priority areas that include i) Revised efforts towards strengthening of community based primary health care units; ii) Adapting vertical programs to federal governance; iii) Reinforcing the health insurance scheme; and iv) Strengthening an existing network of community health workers and health human resources. This review discusses how these broad goals bear challenges and opportunities.