Valeria Nortarnicola

Mrs. Valeria Nortarnicola


Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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7 October 2025 in Buildings
Verified
Journal Article
Open access
PDF file
NMNicola Magaletti
Nicola Magaletti
VNValeria Nortarnicola
Valeria Nortarnicola
MMMauro Di Molfetta
Mauro Di Molfetta
ANGELO LEOGRANDEANGELO LEOGRANDE
ANGELO LEOGRANDE
Climate change mitigation for the built environment has become a subject of greatest urgency, as buildings account for nearly 40% of total energy consumption and nearly one-third of total CO2 emissions. While environmental, social, and governance (ESG) indicators are increasingly used to monitor sustainability performance, their collective role in impacting building-related emissions is yet largely under-investigated. The current research closes that gap through an examination of the ESG dimension–CO2 emissions intersection of 180 nations from 2000 to 2022, in the hope of illuminating how environmental, social, and governance elements interact to facilitate decarbonization. The research is guided by a multi-method design, including econometric examination, cluster modeling, and machine learning techniques, which provide causal evidence and predictive analysis, respectively. The findings reveal that the deployment of renewable energy significantly reduces emissions, while per capita energy use and PM2.5 air pollution exacerbate this effect. The social indicators show mixed results: learning, women’s parliamentary representation, and women’s workforce representation reduce emissions, while food production and growth among the lowest-income individuals demonstrate higher emissions. Governance demonstrates mixed results as well, with good regulation reducing emissions under specific conditions yet primarily supporting high-income countries with superior infrastructure. The examination of clusters reveals that ESG-balanced performance is retained by countries in the low-emission clusters, whereas decentralized ESG pillars are associated with higher emissions. Machine learning confirms the existence of non-linear effects and identifies PM2.5 exposure and renewable energy deployment as the strongest predictors of the relationship. In summary, the findings suggest that successful policies for decarbonizing the built environment are constructed upon the consistency of environmental, social, and governance plans, rather than single steps.

18 December 2025 in Sustainability
Verified
Journal Article
Open access
PDF file
NMNicola Magaletti
Nicola Magaletti
VNValeria Nortarnicola
Valeria Nortarnicola
MMMauro Di Molfetta
Mauro Di Molfetta
SMStefano Mariani
Stefano Mariani
ANGELO LEOGRANDEANGELO LEOGRANDE
ANGELO LEOGRANDE
This study investigates the complex relationship between the performance of logistics and Environmental, Social, and Governance (ESG) performance, drawing upon the multi-methodological framework of combining econometrics with state-of-the-art machine learning approaches. Employing Instrumental Variable (IV) Panel data regressions, viz., 2SLS and G2SLS, with data from a balanced panel of 163 countries covering the period from 2007 to 2023, the research thoroughly investigates how the performance of the Logistics Performance Index (LPI) is correlated with a variety of ESG indicators. To enrich the analysis, machine learning models—models based upon regression, viz., Random Forest, k-Nearest Neighbors, Support Vector Machines, Boosting Regression, Decision Tree Regression, and Linear Regressions, and clustering, viz., Density-Based, Neighborhood-Based, and Hierarchical clustering, Fuzzy c-Means, Model-Based, and Random Forest—were applied to uncover unknown structures and predict the behavior of LPI. Empirical evidence suggests that higher improvements in the performance of logistics are systematically correlated with nascent developments in all three dimensions of the environment (E), social (S), and governance (G). The evidence from econometrics suggests that higher LPI goes with environmental trade-offs such as higher emissions of greenhouse gases but cleaner air and usage of resources. On the S dimension, better performance in terms of logistics is correlated with better education performance and reducing child labor, but also demonstrates potential problems such as social imbalances. For G, better governance of logistics goes with better governance, voice and public participation, science productivity, and rule of law. Through both regression and cluster methods, each of the respective parts of ESG were analyzed in isolation, allowing us to study in-depth how the infrastructure of logistics is interacting with sustainability research goals. Overall, the study emphasizes that while modernization is facilitated by the performance of the infrastructure of logistics, this must go hand in hand with policy intervention to make it socially inclusive, environmentally friendly, and institutionally robust.

1 December 2025 in Systems
Verified
Journal Article
Open access
PDF file
NMNicola Magaletti
Nicola Magaletti
CTChiara Tognon
Chiara Tognon
MMMauro Di Molfetta
Mauro Di Molfetta
AZAngelo Zerega
Angelo Zerega
VNValeria Nortarnicola
Valeria Nortarnicola
ANGELO LEOGRANDEANGELO LEOGRANDE
ANGELO LEOGRANDE
This article proposes a complex solution to improve sustainable intelligent building management based on the principles of Environmental, Social, and Governance (ESG) factors. The ESG KPI Framework–Metaverse-Enabled Operations incorporates the latest digital twin solutions, IoT sensor systems, and metaverse platforms to deliver real-time management and optimization of ESG factors. A hybrid solution strategy has been used in this framework, focusing on auto-acquisition of information and multiple validations at different levels through correlation analysis, Principal Component Analysis (PCA), Ordinary Least Squares (OLS) regression, and Machine Learning. The designed prototype links all the solutions together in a multi-level dashboard to represent key performance factors such as carbon footprint, energy consumption, renewable energy use, and occupant wellness. Experiments conducted validate the effectiveness of the proposed solution in improving prediction efficiency and user interaction experience during metaverse simulations.

23 April 2025 in Preprints.org
Verified
Preprint
Open access
PDF file
NMNicola Magaletti
Nicola Magaletti
VNValeria Nortarnicola
Valeria Nortarnicola
MMMauro Di Molfetta
Mauro Di Molfetta
SMStefano Mariani
Stefano Mariani
ANGELO LEOGRANDEANGELO LEOGRANDE
ANGELO LEOGRANDE
The paper investigates the deployment of data analytics and machine learning to improve welding quality in Tecnomulipast srl, a small-to-medium sized manufacturing firm located in Puglia, Italy. The firm produces food machine components and more recently mechanized its laser welding process with the introduction of an IoT-enabled system integrating photographic control. The investment, underwritten by the Apulia Region under PIA (Programmi Integrati di Agevolazione) allowed Tecnomulipast to not only mechanize its production line but also embark upon wider digital transformation. This involved the creation of internal data analytics infrastructures that have the capability to underpin machine learning and artificial intelligence applications. This paper addresses a prediction of weld bead width (LC) with a dataset of 1,000 observations. Input variables are laser power (PL), pulse time (DI), frequency (FI), beam diameter (DF), focal position (PF), travel speed (VE), trajectory accuracy (TR), laser angle (AN), gas flow (FG), gas purity (PG), ambient temperature (TE), and penetration depth (PE). The parameters were exploited to build and validate some supervised machine learning algorithms like Decision Trees, Random Forest, K-Nearest Neighbors, Support Vector Machines, Neural Networks, and Linear Regression. The performance of the models was measured by MSE, RMSE, MAE, MAPE, and R². Ensemble methods like Random Forest and Boosting performed the highest. Feature importance analysis determined that laser power, gas flow, and trajectory accuracy are the key variables. This project showcases the manner in which Tecnomulipast has benefited from public investment to introduce digital transformation and adopt data-driven strategies within Industry 4.0.

23 April 2025 in Preprints.org
Verified
Preprint
Open access
PDF file
NMNicola Magaletti
Nicola Magaletti
VNValeria Nortarnicola
Valeria Nortarnicola
MMMauro Di Molfetta
Mauro Di Molfetta
SMStefano Mariani
Stefano Mariani
ANGELO LEOGRANDEANGELO LEOGRANDE
ANGELO LEOGRANDE
This case study features Tecnomulipast, an SME from Southern Italy that specializes in machinery production for the food processing industry. The study is in fact centered on the company's digital transformation process, facilitated by investments in advanced production systems and innovation-driven managerial practices both facilitated by regional co-financing initiatives, including from Regione Puglia. At the center of it all is the integration between a new Industry 4.0-compliant laser welding system in the company's ERP system. Through Internet of Things (IoT) technologies, the system is inherently equipped to collect and transmit batch-level as well as real-time data, instantiating a cyber-physical system for advanced manufacturing. Easy to connect by standard interface (i.e. OPC-UA), the system is tied to an analytics data framework capable of working on structured data (e.g., KPIs, sensors' metrics) as well as on unstructured data (e.g., images), allowing for real-time monitoring, early anomaly signaling, and optimization of processes. Designed for scalability, the related technology architecture is future-proof to include artificial intelligence (AI) integration for augmenting decision-making with predictive and prescriptive analytics. Beyond the technological enhancement, however, the transformation was facilitated by an excellence managerial model that focuses on flexibility, data-driven governance, as well as on constant learning. Tecnomulipast's case offers an replicable template for SMEs—especially in low digital maturity areas—showing that targeted investment, innovation-driven management, and system-level integration might finally eliminate the gap between tech potential and operational performance in Industry 4.0 transitions.

20 October 2025 in Research Square
Verified
Preprint
Open access
PDF file
NMNicola Magaletti
Nicola Magaletti
CTChiara Tognon
Chiara Tognon
MMMauro Di Molfetta
Mauro Di Molfetta
AZAngelo Zerega
Angelo Zerega
VNValeria Nortarnicola
Valeria Nortarnicola
ANGELO LEOGRANDEANGELO LEOGRANDE
ANGELO LEOGRANDE
A new software platform is presented in this article to oversee and manage urban and industrial smart systems by employing digital twin technologies and immersive, interactive metaverse settings, thereby achieving environmentally sustainable urban infrastructure. The system proposed is prepared to track, simulate, and optimize building performance using predictive analytics and interactive dashboards, and thus serves as a modular, interoperable solution. By defining a multi-residential site management case study, a working prototype is developed and implemented here using simulated and realistic datasets, thereby designed for real-time calculation and visualization of key performance indicators (KPIs) across various areas, including energy efficiency, preventive maintenance, user experience through design, and economic performance. The choice of KPIs, such as energy usage intensity, return on investment, and user satisfaction, can benefit from this technology setup and yield improvements through enhanced operational efficiency, clearer decision-making, and long-term cost-effectiveness. Although such obstacles exist, empirical testing with real data may reveal that integration with hardware, interoperability with existing setups, and economic costing are feasible for small to medium-sized players. With evaluation performed using simulated data, the platform suggests a prospective setup ready to be tested through pilot testing with real-world deployment. In situating the Smart Infrastructure Metaverse here, as a transformation setup of digital governance within a built and developed framework with technological innovation coupled with sustainability and with inclusivity to all the players/stakeholders, the cities embarked here through ever-increasing digital ecosystems with advantages of having such works through an emerging discussion of how immersive technology informs here of a next-generation potential of smart, sustainable, and participatory urban living.