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1. Modal coupling impacts the parametric normal mode splitting: Quantifying the tunable mode coupling of a nanomechanical resonator

Author

Barakat, Ahmed A., Chowdhury, Avishek, Le, Anh Tuan, and Weig, Eva M.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

The estimation of the modal coupling strength between two hybridized normal modes or oscillators remains a hard task to achieve. However, the coupling effects can be unearthed by observing the system's dynamic behaviour upon energy injection. One of the manifestations of this approach is the normal mode splitting generated using parametric excitation. In this contribution, a rigorous and generic mathematical formulation for the parametric normal mode splitting in any two-mode dynamical system is presented. It allows for estimating the coupling strength both in the weak and in the strong coupling regime, and irrespective of the degree of hybridization between the modes. The method is applied on the vibrations of a nanomechanical two-mode system implemented in a tunable nanostring resonator. We find good agreement between the experiment and the theoretical model, and are able to quantify the modal coupling of the nanostring as a function of the applied bias voltage.

Published
2024

14. Natural Frequency-Based Prestress-Force Estimation for Post-Tensioned Prestressed Concrete Beams

Author

Tran, Quoc-Tien, Nguyen, Minh-Huy, Huynh, Quoc-Viet, Le, Phuc-Vinh, Le, Anh-Tuan, Huynh, Thanh-Canh, Ha, Tuan Minh, Ho, Duc-Duy, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Reddy, J. N., editor, Luong, Van Hai, editor, and Le, Anh Tuan, editor

Published
2024
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15. Uplift Soil—Pipe Interaction Considering Large Deformation and Post-Peak Softening of Dense Sand

Author

Nguyen, Kien Trung, Khoa, Nguyen Viet Anh, Le, Anh Tuan, Le, Trong Nghia, Le, Ba Vinh, Hai, Do Thanh, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Reddy, J. N., editor, Luong, Van Hai, editor, and Le, Anh Tuan, editor

Published
2024
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16. Predicting Bearing Capacity of Strip Footing on Slope Using a Soft Computing Technique

Author

Tran, Minh Nhat, Keawsawasvong, Suraparb, Lam, Sanh, Le, Anh Tuan, Luong, Van Hai, Lai, Van Qui, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Reddy, J. N., editor, Luong, Van Hai, editor, and Le, Anh Tuan, editor

Published
2024
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17. Investigation of the Effect of Ground Granulated Blast Furnace Slag (GGBS) Content on the Properties of Lightweight Geopolymer Concrete

Author

Tran, Tuan Kiet, Nguyen, Tan Khoa, Le, Anh Tuan, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Reddy, J. N., editor, Luong, Van Hai, editor, and Le, Anh Tuan, editor

Published
2024
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18. Investigation of the Flexural Strength of Steel Fiber Reinforced Geopolymer Concrete Using Machine Learning Techniques

Author

Pham, Khoa V. A., Nguyen, Tan Khoa, Nguyen, Thien Thanh, Le, Anh Tuan, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Reddy, J. N., editor, Luong, Van Hai, editor, and Le, Anh Tuan, editor

Published
2024
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19. Influence of Glass Fibers on the Mechanical Properties and Impact Resistance of Slag Based Geopolymer Mortar

Author

Phan, Duc Hung, Tran, Nhat Minh, Nguyen, Ninh Thuy, Le, Anh Tuan, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Reddy, J. N., editor, Luong, Van Hai, editor, and Le, Anh Tuan, editor

Published
2024
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20. High-Strength Geopolymer Mortar Using Slag Activated with Silica-Fume

Author

Phan, Duc Hung, Vo, Thi Tuyet Giang, Vo, Viet Hai, Nguyen, Thien Thanh, Le, Anh Tuan, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Reddy, J. N., editor, Luong, Van Hai, editor, and Le, Anh Tuan, editor

Published
2024
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21. A Study on the Factors of Classification Recycling of Construction Demolished Waste (CDW) in Ho Chi Minh City

Author

Le, Anh Tuan, Phan, Phat Thanh, Le-Hoai, Long, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Reddy, J. N., editor, Luong, Van Hai, editor, and Le, Anh Tuan, editor

Published
2024
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23. Global beta-diversity of angiosperm trees is shaped by Quaternary climate change

Author

Xu, Wu-Bing, Guo, Wen-Yong, Serra-Diaz, Josep M, Schrodt, Franziska, Eiserhardt, Wolf L, Enquist, Brian J, Maitner, Brian S, Merow, Cory, Violle, Cyrille, Anand, Madhur, Belluau, Michaël, Bruun, Hans Henrik, Byun, Chaeho, Catford, Jane A, Cerabolini, Bruno EL, Chacón-Madrigal, Eduardo, Ciccarelli, Daniela, Cornelissen, J Hans C, Dang-Le, Anh Tuan, de Frutos, Angel, Dias, Arildo S, Giroldo, Aelton B, Gutiérrez, Alvaro G, Hattingh, Wesley, He, Tianhua, Hietz, Peter, Hough-Snee, Nate, Jansen, Steven, Kattge, Jens, Komac, Benjamin, Kraft, Nathan JB, Kramer, Koen, Lavorel, Sandra, Lusk, Christopher H, Martin, Adam R, Ma, Ke-Ping, Mencuccini, Maurizio, Michaletz, Sean T, Minden, Vanessa, Mori, Akira S, Niinemets, Ülo, Onoda, Yusuke, Onstein, Renske E, Peñuelas, Josep, Pillar, Valério D, Pisek, Jan, Pound, Matthew J, Robroek, Bjorn JM, Schamp, Brandon, Slot, Martijn, Sun, Miao, Sosinski, Ênio E, Soudzilovskaia, Nadejda A, Thiffault, Nelson, van Bodegom, Peter M, van der Plas, Fons, Zheng, Jingming, Svenning, Jens-Christian, and Ordonez, Alejandro

Subjects
Life Below Water, Climate Action, Humans, Phylogeny, Magnoliopsida, Climate Change, Biodiversity
Abstract

As Earth's climate has varied strongly through geological time, studying the impacts of past climate change on biodiversity helps to understand the risks from future climate change. However, it remains unclear how paleoclimate shapes spatial variation in biodiversity. Here, we assessed the influence of Quaternary climate change on spatial dissimilarity in taxonomic, phylogenetic, and functional composition among neighboring 200-kilometer cells (beta-diversity) for angiosperm trees worldwide. We found that larger glacial-interglacial temperature change was strongly associated with lower spatial turnover (species replacements) and higher nestedness (richness changes) components of beta-diversity across all three biodiversity facets. Moreover, phylogenetic and functional turnover was lower and nestedness higher than random expectations based on taxonomic beta-diversity in regions that experienced large temperature change, reflecting phylogenetically and functionally selective processes in species replacement, extinction, and colonization during glacial-interglacial oscillations. Our results suggest that future human-driven climate change could cause local homogenization and reduction in taxonomic, phylogenetic, and functional diversity of angiosperm trees worldwide.

Published
2023

25. A Simulation Study on On-Road Fuel Consumption of Motorcycles by the Implementation of AVL-Cruise

Author

Duc, Khanh Nguyen, Duy, Tien Nguyen, The, Truc Nguyen, Le Anh, Tuan, Yen, Lien Nguyen Thi, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Nguyen, Duy Cuong, editor, Hai, Do Trung, editor, Vu, Ngoc Pi, editor, Long, Banh Tien, editor, Puta, Horst, editor, and Sattler, Kai-Uwe, editor

Published
2024
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26. Estimating the Difference Between Actual Driving Characteristics and World Motorcycle Test Cycle: A Case Study for Motorcycles in Hanoi

Author

Nguyen, Yen-Lien T., Duc, Khanh Nguyen, Le, Anh-Tuan, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Nguyen, Duy Cuong, editor, Hai, Do Trung, editor, Vu, Ngoc Pi, editor, Long, Banh Tien, editor, Puta, Horst, editor, and Sattler, Kai-Uwe, editor

Published
2024
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27. An Approach to Instrumental Song Classification Utilizing Spectrogram and Convolutional Neural Networks

Author

Le, Anh Tuan, Nguyen, Hien Thanh Thi, Nguyen, Hoa Huu, Nguyen, Hai Thanh, Kacprzyk, Janusz, Series Editor, Novikov, Dmitry A., Editorial Board Member, Shi, Peng, Editorial Board Member, Cao, Jinde, Editorial Board Member, Polycarpou, Marios, Editorial Board Member, Pedrycz, Witold, Editorial Board Member, Hoang Phuong, Nguyen, editor, Huyen Chau, Nguyen Thi, editor, and Kreinovich, Vladik, editor

Published
2024
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28. Bearing Capacity of Circular Footing on c-ϕ Slope

Author

Tran, Minh Nhat, Boonyatee, Tirawat, Le, Anh Tuan, Lai, Van Qui, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Duc Long, Phung, editor, and Dung, Nguyen Tien, editor

Published
2024
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29. Applying a Genetic Algorithm to Optimize Linear Quadratic Regulator for Ball and Beam System

Author

Tran, Nguyen-Dang-Khoa, Le, Anh-Tuan, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Trong Dao, Tran, editor, Hoang Duy, Vo, editor, Zelinka, Ivan, editor, Dong, Chau Si Thien, editor, and Tran, Phuong T., editor

Published
2024
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30. Study of Sr,Ba3Si6O3N8:Eu phosphor for Improving Color Quality of White Light-Emitting Diodes

Author

Tung, Ha Thanh, Tran, Nguyen-Dang-Khoa, Le, Anh-Tuan, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Trong Dao, Tran, editor, Hoang Duy, Vo, editor, Zelinka, Ivan, editor, Dong, Chau Si Thien, editor, and Tran, Phuong T., editor

Published
2024
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32. An intervention pilot to facilitate harm reduction service decentralization in Vietnam

Author

Lin, Chunqing, Li, Li, Le, Anh Tuan, Tran, Hoang My Lien, Pham, Thanh Duyen, and Nguyen, Anh Tuan

Subjects
Health Services and Systems, Public Health, Health Sciences, Clinical Research, Clinical Trials and Supportive Activities, Behavioral and Social Science, Health Disparities, Substance Misuse, Social Determinants of Health, Prevention, Health Services, 6.6 Psychological and behavioural, 3.1 Primary prevention interventions to modify behaviours or promote wellbeing, Good Health and Well Being, Humans, Community Health Workers, Harm Reduction, Methadone, Politics, Vietnam, Service decentralization, Quality improvement, Harm reduction
Abstract

IntroductionHarm reduction services, including methadone maintenance therapy (MMT), have been decentralized to Vietnam's community health care settings. This study aims to pilot test an intervention to facilitate decentralized harm reduction service delivery in Vietnam.MethodsThe research team conducted an intervention pilot between August 2020 and May 2021 with six community MMT distribution sites in Thai Nguyen Province of Vietnam. We recruited five commune health workers (CHW) from each center (N = 30). In-person intervention training included content to correct misconceptions about harm reduction and reduce stigmatizing attitudes toward patients who use drugs and teach CHWs to self-examine and improve their service provision process. The study team developed a web-based platform to streamline CHW's patient monitoring and referral efforts. The team assessed intervention outcomes at baseline, 3-, and 6-months. CHWs in the intervention group provided acceptability ratings and feedback on the intervention at 6-months.ResultsCHWs in both intervention and control groups had similar background characteristics and outcome measures at baseline. CHWs in the intervention group, compared to those in the control group, showed a significantly higher level of improvement in adherence to service delivery protocol at 3-months. CHW in the intervention group had a significantly lower level of management-related stress compared to the control group at 6-months, although the intervention effect measured by the difference in change from baseline was not statistically significant. CHWs who participated in the final focus group reported high acceptability of the intervention.ConclusionThis intervention pilot demonstrated acceptability and promising outcomes on community-based harm reduction service delivery. Similar intervention strategies can be applied to enhance the decentralization of other chronic disease treatment services.

Published
2023

36. Iterative Adaptive Spectroscopy of Short Signals

Author

Chowdhury, Avishek, Le, Anh Tuan, Weig, Eva M., and Ribeiro, Hugo

Subjects
Physics - Applied Physics, Quantum Physics
Abstract

We develop an iterative, adaptive frequency sensing protocol based on Ramsey interferometry of a two-level system. Our scheme allows one to estimate unknown frequencies with a high precision from short, finite signals. It avoids several issues related to processing of decaying signals and reduces the experimental overhead related to sampling. High precision is achieved by enhancing the Ramsey sequence to prepare with high fidelity both the sensing and readout state and by using an iterative procedure built to mitigate systematic errors when estimating frequencies from Fourier transforms.

Published
2022
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42. Tepotinib plus osimertinib in patients with EGFR-mutated non-small-cell lung cancer with MET amplification following progression on first-line osimertinib (INSIGHT 2): a multicentre, open-label, phase 2 trial

Author

Wu, Yi-Long, Guarneri, Valentina, Voon, Pei Jye, Lim, Boon Khaw, Yang, Jin-Ji, Wislez, Marie, Huang, Cheng, Liam, Chong Kin, Mazieres, Julien, Tho, Lye Mun, Hayashi, Hidetoshi, Nhung, Nguyen Viet, Chia, Puey Ling, de Marinis, Filippo, Raskin, Jo, Zhou, Qinghua, Finocchiaro, Giovanna, Le, Anh Tuan, Wang, Jialei, Dooms, Christophe, Kato, Terufumi, Nadal, Ernest, Hin, How Soon, Smit, Egbert F, Wermke, Martin, Tan, Daniel, Morise, Masahiro, O'Brate, Aurora, Adrian, Svenja, Pfeiffer, Boris M, Stroh, Christopher, Juraeva, Dilafruz, Strotmann, Rainer, Goteti, Kosalaram, Berghoff, Karin, Ellers-Lenz, Barbara, Karachaliou, Niki, Le, Xiuning, and Kim, Tae Min

Published
2024
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45. High exposure of global tree diversity to human pressure

Author

Guo, Wen-Yong, Serra-Diaz, Josep M, Schrodt, Franziska, Eiserhardt, Wolf L, Maitner, Brian S, Merow, Cory, Violle, Cyrille, Anand, Madhur, Belluau, Michaël, Bruun, Hans Henrik, Byun, Chaeho, Catford, Jane A, Cerabolini, Bruno EL, Chacón-Madrigal, Eduardo, Ciccarelli, Daniela, Cornelissen, J Hans C, Dang-Le, Anh Tuan, de Frutos, Angel, Dias, Arildo S, Giroldo, Aelton B, Guo, Kun, Gutiérrez, Alvaro G, Hattingh, Wesley, He, Tianhua, Hietz, Peter, Hough-Snee, Nate, Jansen, Steven, Kattge, Jens, Klein, Tamir, Komac, Benjamin, Kraft, Nathan JB, Kramer, Koen, Lavorel, Sandra, Lusk, Christopher H, Martin, Adam R, Mencuccini, Maurizio, Michaletz, Sean T, Minden, Vanessa, Mori, Akira S, Niinemets, Ülo, Onoda, Yusuke, Peñuelas, Josep, Pillar, Valério D, Pisek, Jan, Robroek, Bjorn JM, Schamp, Brandon, Slot, Martijn, Sosinski, Ênio Egon, Soudzilovskaia, Nadejda A, Thiffault, Nelson, van Bodegom, Peter, van der Plas, Fons, Wright, Ian J, Xu, Wu-Bing, Zheng, Jingming, Enquist, Brian J, and Svenning, Jens-Christian

Subjects
Life on Land, Anthropogenic Effects, Biodiversity, Conservation of Natural Resources, Ecosystem, Humans, Phylogeny, Trees, biodiversity, conservation frameworks, land use, protected areas, tree species
Abstract

Safeguarding Earth's tree diversity is a conservation priority due to the importance of trees for biodiversity and ecosystem functions and services such as carbon sequestration. Here, we improve the foundation for effective conservation of global tree diversity by analyzing a recently developed database of tree species covering 46,752 species. We quantify range protection and anthropogenic pressures for each species and develop conservation priorities across taxonomic, phylogenetic, and functional diversity dimensions. We also assess the effectiveness of several influential proposed conservation prioritization frameworks to protect the top 17% and top 50% of tree priority areas. We find that an average of 50.2% of a tree species' range occurs in 110-km grid cells without any protected areas (PAs), with 6,377 small-range tree species fully unprotected, and that 83% of tree species experience nonnegligible human pressure across their range on average. Protecting high-priority areas for the top 17% and 50% priority thresholds would increase the average protected proportion of each tree species' range to 65.5% and 82.6%, respectively, leaving many fewer species (2,151 and 2,010) completely unprotected. The priority areas identified for trees match well to the Global 200 Ecoregions framework, revealing that priority areas for trees would in large part also optimize protection for terrestrial biodiversity overall. Based on range estimates for >46,000 tree species, our findings show that a large proportion of tree species receive limited protection by current PAs and are under substantial human pressure. Improved protection of biodiversity overall would also strongly benefit global tree diversity.

Published
2022

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