Gabriel Ponzoni Frey

Gabriel Ponzoni Frey
University of Bonn | Uni Bonn · Center for Development Research

Ph.D. candidate

About

11
Publications
1,261
Reads
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40
Citations

Publications

Publications (11)
Article
Full-text available
Our study analyzes potential agro-industrial soybean expansion dynamics and is the first to project soybean expansion Paraguayan Chaco. This biodiverse region, home to the greatest diversity of indigenous groups in Paraguay, has recently seen some of the world's highest deforestation rates, losing 3.4 Mha of forestland between 2001 and 2014. Soy, a...
Article
Roads and infrastructure are fundamental preconditions for the large-scale conversion of natural forests into agricultural landscapes. Therefore, geographic differences in accessibility are critical for understanding land use and land cover change (LULCC) dynamics. As one of the most dynamic agricultural frontiers globally, the Amazon has much atte...
Article
Full-text available
Historically, the expansion of soy plantations has been a major driver of land-use/cover change (LUCC) in Brazil. While a series of recent public actions and supply-chain commitments reportedly curbed the replacement of forests by soy, the expansion of the agricultural commodity still poses a considerable threat to the Amazonian and Cerrado biomes....
Article
Full-text available
DNA barcoding helps to identify species, especially when identification is based on parts of organisms or life stages such as seeds, pollen, wood, roots or juveniles. However, the implementation of this approach strongly depends on the existence of complete reference libraries of DNA sequences. If such a library is incomplete, DNA-based identificat...
Data
Differences between the proportion of taxa in the SP tree flora and the proportion of taxa with barcoding sequences with DNA barcodes per family and genus.
Data
The priority index for future sequencing efforts for tree species in the state of São Paulo, Brazil.
Data
Tree community surveys used to obtain species abundances for the São Paulo tree flora.
Data
Primers and PCR protocols used to obtain the DNA sequences.
Data
The full list of the São Paulo tree flora, including their life form, geographical distribution, threat status at state-level and the source of the record.
Data
List of GenBank accessions found for the São Paulo tree flora.
Research
Full-text available
As a measure to adapt to flooding in agricultural areas, different technologies have been introduced or enhanced in the Southern and NorthEastern parts of Bangladesh. While there is detailed knowledge about the impact floods have on the society and the environment, very few studies have investigated the effects adaptation technologies for flood man...

Questions

Question (1)
Question
The old url seems to be down.
Reference:
Saatchi et al. 2011. Benchmark map of forest carbon stocks in tropical regions across three continents. PNAS 108 (24) 9899-9904; DOI:10.1073/pnas.1019576108

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Projects

Projects (2)
Project
The research project STRIVE aims at improving the knowledge base for the design of sustainable bioeconomy policies and investments with a focus on international regulatory frameworks. An alignment of bioeconomic societal transformation with global Sustainable Development Goals involves multiple complex governance challenges. To address these challenges, this project aims at (1) enhancing public and private decision-makers’ capacity to tailor bioeconomy related policies and investments according to regional and local sustainable comparative advantages and at (2) identifying essential ingredients of international and national regulatory frameworks to promote social and environmental benefits of biobased transformation. The project focuses on transnational biomass flows and innovation transfer in selected bioeconomy sectors with an emphasis on major biomass and knowledge producing countries and regions. Methodology (1) Mapping and measuring the global bioeconomy to identify and quantify current conditions, drivers and outcomes of bioeconomic transformations. (2) Exploring global bioeconomy scenarios via empirical evaluations and global trade model based assessments to identify unintended consequences of bioeconomy policy and innovation trends. (3) Designing governance frameworks for sustainable bio-based commodity trade and technology/knowledge transfers. The research will be conducted in collaboration with German, European, and international partners and is embedded in a networking strategy that aims at mainstreaming sustainability science in applied bioeconomy research. More information at: https://strive-bioecon.de/
Project
The homeopathic method of healing is grounded on the application of the principle of therapeutic similitude (similia similibus curentur) by using medicines that cause effects similar to the symptoms of disease in order to stimulate the reaction of the organism against its own disturbs. Such vital, homeostatic or paradoxical reaction of the organism can be scientifically explained on the basis of the rebound effect of modern drugs. This work presents the conclusion of a study aiming at a method to use modern drugs with homeopathic criteria. This claim is epistemologically justified by the fact that a definite class of adverse events described by experimental pharmacology represents actual pathogenetic symptoms of drugs. On these grounds it was possible to elaborate a homeopathic materia medica and repertory comprising 1,251 modern drugs to be employed according to the principle of similitude and the individualizing symptomatic totality. Besides supplying a basis for homeopathy as a medical rationality regarding scientific pharmacology, this study makes available a method that may broaden the scope of intervention of homeopathy in present day diseases. Available at: www.newhomeopathicmedicines.com O método de tratamento homeopático se baseia na aplicação do princípio da similitude (similia similibus curentur), utilizando medicamentos que causam efeitos semelhantes aos sintomas da doença, com o objetivo de estimular uma reação do organismo contra seus próprios distúrbios. Essa reação vital, homeostática ou paradoxal do organismo está cientificamente embasada no estudo do efeito rebote das drogas modernas. Nesse trabalho, estamos concluindo uma proposta antiga, na qual sugerimos um método para a utilização homeopática das drogas modernas. Apoiados na justificativa epistemológica de que determinada classe de eventos adversos descritos na farmacologia experimental são sintomas patogenéticos das substâncias, foi elaborada uma Matéria Médica e um Repertório Homeopático com 1251 drogas modernas, sugerindo sua utilização segundo o princípio da similitude e a totalidade sintomática individualizante. Além de embasar a racionalidade homeopática perante a farmacologia científica, estamos disponibilizando uma metodologia que poderá ampliar o espectro de ação da homeopatia nas doenças atuais. Disponível em: www.novosmedicamentoshomeopaticos.com