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Tree structure and diversity of lowland Atlantic forest fragments：comparison of disturbed and undisturbed remnants

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Journal of Forestry Research 2016年第3期27卷 605-609页

作者： fabricio Alvim Carvalho joao Marcelo Alvarenga Braga Marcelo Trindade Nascimento Departamento de Botanica Universidade Federal de Juiz de Fora. Campus Universitario s/n Sao PedroJuiz de Fora-MG 36036-900 Brazil Instituto de Pesquisas do Jardim Botanico do Rio de Janeiro. Rio de Janeiro-RJ Brazil Laboratorio de Ciencias Ambientais CBB Universidade Estadual do Norte Fluminense Campos dos Goytacazes-RJ 28013-602 Brazil

This study describes the tree community structure of three moist lowland Atlantic Forest fragments in Rio de Janeiro State, southeastern Brazil. Two fragments were disturbed and an undisturbed one was used as reference. Our hypothesis was that disturbed fragments show distinct structural patterns in comparison with undisturbed stands due to past disturbance practices and forest fragmentation. Four 100 ×5 m sampling plots were demarcated in each fragment and all live and dead trees with DBH C 5 cm were located, measured and identified. The results supported our hypothesis, due to the high values found for standing dead trees, an increase of dominance of a few pioneer species, lower values of large trees and species richness in disturbed fragments in comparison with the undisturbed one. The advanced fragmentation process in the Southern Brazilian lowland areas and the high species richness in undisturbed areas highlight these forest fragments as priority areas for conservation and management.

关键词： Phytosociology Tree community Forestfragmentation . Hotspot Brazil

Placental-derived stem cells:Culture, differentiation and challenges

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World Journal of Stem Cells 2015年第4期7卷 769-775页

作者： Maira S Oliveira joao B Barreto-filho College of Veterinary Medicine Veterinary SchoolUniversidade Federal de Minas Gerais Department of Veterinary Medicine Universidade Federal de Lavras

Stem cell therapy is a promising approach to clinical healing in several diseases. A great variety of tissues(bone marrow, adipose tissue, and placenta) arepotentially sources of stem cells. Placenta-derived stem cells(p-SCs) are in between embryonic and mesenchymal stem cells, sharing characteristics with both, such as non-carcinogenic status and property to differentiate in all embryonic germ layers. Moreover, their use is not ethically restricted as fetal membranes are considered medical waste after birth. In this context, the present review will be focused on the biological properties, culture and potential cell therapy uses of placental-derived stem cells. Immunophenotype characterization, mainly for surface marker expression, and basic principles of p-SC isolation and culture(mechanical separation or enzymatic digestion of the tissues, the most used culture media, cell plating conditions) will be presented. In addition, some preclinical studies that were performed in different medical areas will be cited, focusing on neurological, liver, pancreatic, heart, muscle, pulmonary, and bone diseases and also in tissue engineering field. Finally, some challenges for stem cell therapy applications will be highlighted. The understanding of the mechanisms involved in the p-SCs differentiation and the achievement of pure cell populations(after differentiation) are key points that must be clarified before bringing the preclinical studies, performed at the bench, to the medical practice.

关键词： Fetal membrane Placenta Embryonic stemcells Mesenchymal stem cells Cell therapy

Current status and future perspectives of radiomics in hepatocellular carcinoma

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World Journal of Gastroenterology 2023年第1期29卷 43-60页

作者： joao Miranda Natally Horvat Gilton Marques Fonseca Jose de Arimateia Batista Araujo-filho Maria ClaraFernandes Charlotte Charbel Jayasree Chakraborty fabricio Ferreira Coelho Cesar Higa Nomura Paulo Herman Department of Radiology University of Sao PauloSao Paulo 05403-010Brazil Department of Radiology Memorial Sloan-Kettering Cancer CenterNew YorkNY 10065United States Department of Gastroenterology University of Sao PauloSao Paulo 05403-000Brazil Department of Radiology Hospital Sirio-LibanesSao Paulo 01308-050Brazil Department of Surgery Memorial Sloan-Kettering Cancer CenterNew YorkNY 10065United States Department of Radiology University of Sao PauloSao Paulo 05403-000Brazil

Given the frequent co-existence of an aggressive tumor and underlying chronic liver disease,the management of hepatocellular carcinoma(HCC)patients requires experienced multidisciplinary team ***,imaging plays a key role in the diagnosis,staging,restaging,and surveillance of ***,imaging assessment of HCC entails the assessment of qualitative characteristics which are prone to inter-reader *** is an emerging field that extracts high-dimensional mineable quantitative features that cannot be assessed visually with the naked eye from medical *** main potential applications of radiomic models in HCC are to predict histology,response to treatment,genetic signature,recurrence,and *** the encouraging results to date,there are challenges and limitations that need to be overcome before radiomics implementation in clinical *** purpose of this article is to review the main concepts and challenges pertaining to radiomics,and to review recent studies and potential applications of radiomics in HCC.

关键词： Radiomics Hepatocellular carcinoma Texture analysis Radiology

Study of the Interactions between Particles Based in Paraquantum Logic

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Journal of Modern Physics 2012年第5期3卷 362-376页

作者： joao Inacio Da Silva filho Group of Applied Paraconsistent Logic Santa Cecilia UniversitySantosBrazil Institute for Advanced Studies University of Sao PauloSao PauloBrazil

Paraquantum Logic (P QL ) has its origins in the fundamental concepts of the Paraconsistent Annotated Logic (PAL) whose main feature is to be capable of treating contradictory information. In this work we presented a study of application of the P QL in resolution of phenomena of physical systems that involves the interactions between physical bodies or particles. Initially is considered that each particle or physical body that is in the physical world has a representative Lattice in the Paraquantum world. From this consideration is made a study of the phenomena of Paraquantum Entanglement modeling the interaction between particles based in fundamental concepts of the Paraquantum Logic. The mathematical relationships of representative Lattices of the Paraquantum Logic originate models with values that are identified with some physical constants. In this work these paraquantum values are identified with the Universal constant of Gravity, proposed by Newton, and the constant K, that relates the Interaction Force in charged particles in the Coulomb’s Law. The results showed that the Paraquantum Logical Model elaborated starting from the fundamental concepts of the Paraquantum Logic (P QL ) is adequate to support theories based in a Paraquantum Universe built by an infinite amount of Lattices and forming a Paraquantum net of infinite dimensions.

关键词： Paraconsistent Logic Paraquantum Logic Classical Physic Relativity Theory Quantum Mechanics

Paraconsistent Annotated Logic in Analysis of Physical Systems:Introducing the Paraquantum Factor of Quantization h_(ψ)

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Journal of Modern Physics 2011年第11期2卷 1397-1409页

作者： joao Inacio Da Silva filho Group of Applied Paraconsistent Logic Santa Cecília UniversitySantosBrazil Institute for Advanced Studies of the University of Sao Paulo Cidade UniversitariaSao PauloBrazil

We present in this paper an alternative of modeling physical systems through a non-Classical logic namely the Paraconsistent Logic (PL) whose main feature is the revocation of the principle of non-contradiction. The Paraconsistent Annotated Logic with annotation of two values (PAL2v) is a type of PL and has in its theoretical structure the main feature of dealing with contradictions offering flexibility in drawing conclusions. Several works about applications of PAL2v have shown that such logic is able to provide us with an adequate treatment to uncertainties. Based on the foundations of the PAL2v we presented the ParaQuantum logic (PQL) with the goal of performing analysis of signals from information sources which model physical systems. The formalization of the concepts of the logics PQL, that it is represented in a Lattice, requires the considering of Paraquantum logical states ψ which are propagated through variations of the evidence Degrees μ and λ which come out from measurements performed in Observable Variables in the physical world. When we analyze the lattice of the PQL, we obtain equations which quantify values of physical quantities from where we obtain the effects of propagation of the Paraquantum logical states ψ. In this paper, we introduce the Paraquantum Factor of quantization hψ whose value is associated with a special logical state on the lattice which is identified with the Planck constant h. We conclude through these studies that the Paraquantum Logical Model based on the ParaQuantum logics PQL can link the several fields of the physical sciences by means of quantization of values. It is an innovative approach of formulating natural phenomena.

关键词： Paraconsistent Logic Paraquantum Logic Classical Physic Relativity Theory Quantum Mechanics

Treatment of Uncertainties with Algorithms of the Paraconsistent Annotated Logic

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Journal of Intelligent Learning Systems and Applications 2012年第2期4卷 144-153页

作者： joao Inácio Da Silva filho UNISANTA Santa Cecília UniversitySantos CityBrazil Institute for Advanced Studies University of Sao PauloSao PauloBrazil

The method presented in this work is based on the fundamental concepts of Paraconsistent Annotated Logic with annotation of 2 values (PAL2v). The PAL2v is a non-classic Logics which admits contradiction and in this paper we perform a study using mathematical interpretation in its representative lattice. This studies result in algorithms and equations give an effective treatment on signals of information that represent situations found in uncertainty knowledge database. From the obtained equations, algorithms are elaborated to be utilized in computation models of the uncertainty treatment Systems. We presented some results that were obtained of analyses done with one of the algorithms that compose the paraconsistent analyzing system of logical signals with the PAL2v Logic. The paraconsistent reasoning system built according to the PAL2v methodology notions reveals itself to be more efficient than the traditional ones, because it gets to offer an appropriate treatment to contradictory information.

关键词： Algorithm Non-Classic Logic Paraconsistent Annotated Logic

Relativity Theory and Paraquantum Logic—Part II:Fundamentals of an Unified Calculation

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Journal of Modern Physics 2012年第9期3卷 972-988页

作者： joao Inacio Da Silva filho Group of Applied Paraconsistent Logic-Santa Cecilia University SantosBrazil Institute for Advanced Studies of the University of Sao Paulo Cidade Universitaria Sao PauloBrazil

The studies of the PQL are based on propagation of Paraquantum logical states ψ in a representative Lattice of four vertices. Based in interpretations that consider resulting information of measurements in physical systems are found paraquantum equations for computation of the physical quantities in real physical systems. In the first part of this work we presented a study of Relativity theory which involved the time and the space with their characteristics as degrees of evidence applied in Paraquantum Logical Model. Now, in this second Part we present a study of application of the PQL in resolution of phenomena of physical systems that involve concepts of the Relativity Theory and the correlation of these effects with the Newtonian Universe and Quantum Mechanics. Considering physical fundamental quantities varying periodically in amplitude, we introduce the paraquantum equations which consider frequency in the analysis. From of these mathematical relationships obtained in the PQL Lattice some main physical constants related to the studies of De Broglie appeared. With the equations of Energy obtained through the analyses is demonstrated that the Paraquantum Logic is capable to correlate values and to unify the several study areas of the Physical Science.

关键词： Paraconsistent Logic Paraquantum Logic Classical Physic Relativity Theory Quantum Mechanics

Paraconsistent Differential Calculus(Part II):Second-Order Paraconsistent Derivative

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Applied Mathematics 2014年第8期5卷 1142-1151页

作者： joao Inácio Da Silva filho Group of Applied Paraconsistent Logic Santa Cecília University-UNISANTASantosBrazil Institute for Advanced Studies of the University of Sao Paulo-IEAUSP Sao PauloBrazil

The Paraconsistent Logic (PL) is a non-classical logic and its main property is to present tolerance for contradiction in its fundamentals without the invalidation of the conclusions. In this paper, we use the PL in its annotated form, denominated Paraconsistent Annotated Logic with annotation of two values-PAL2v. This type of paraconsistent logic has an associated lattice that allows the development of a Paraconsistent Differential Calculus based on fundamentals and equations obtained by geometric interpretations. In this paper (Part II), it is presented a continuation of the first article (Part I) where the Paraconsistent Differential Calculus is given emphasis on the second-order Paraconsistent Derivative. We present some examples applying Paraconsistent Derivatives at functions of first and second-order with the concepts of Paraconsistent Mathematics.

关键词： Paraconsistent Logic Paraconsistent Annotated Logic Paraconsistent Mathematics Paraconsistent Differential Calculus

Analysis of Physical Systems with Paraconsistent Annotated Logic: Introducing the Paraquantum Gamma Factor γ_(ψ)

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Journal of Modern Physics 2011年第12期2卷 1455-1469页

作者： joao Inacio Da Silva filho Santa Cecilia University Group of Applied Paraconsistent LogicSantosBrazil Institute for Advanced Studies of the University of Sao Paulo TerreoCidade UniversitariaSao PauloBrazil

In this paper we use a non-classical logic called ParaQuantum Logic (PQL) which is based on the foundations of the Paraconsistent Annotated logic with annotation of two values (PAL2v). The formalizations of the PQL concepts, which is represented by a lattice with four vertices, leads us to consider Paraquantum logical states ψ which are propagated by means of variations of the evidence Degrees extracted from measurements performed on the Observable Variables of the physical world. In this work we introduce the Paraquantum Gamma Factor γPψ which is an expansion factor on the PQL lattice that act in the physical world and is correlated with the Paraquantum Factor of quantization hψ whose value is associated with a special logical state on the lattice which is identified with the Planck constant h. Our studies show that the behavior of the Paraquantum Gamma Factor γPψ, at the time of reading the evidence Degrees through measurements of the Observable Variables in the physical world, is identical to that one of the Lorentz Factor γ used in the relativity theory. In the final part of this paper we present results about studies of expansion and contraction of the Paraquantum Logical Model which correlate the factors γPψ, and γ. By applying these correlation factors, the lattice of the PQL suitable for the universe understudy can be contracted or expanded, allowing the quantization model to cover the several study fields of physics.

关键词： Paraconsistent Logic Paraquantum Logic Classical Physic Relativity Theory Quantum Mechanics