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  • Open Access

    ARTICLE

    Influence of Different Forest Management Techniques on the Quality of Wood

    Olga Grigoreva1,*, Elena Runova2, Alexei Alyabyev3, Edward Hertz4, Anna Voronova5, Viktor Ivanov2, Svetlana Shadrina6, Igor Grigorev7

    Journal of Renewable Materials, Vol.9, No.12, pp. 2175-2188, 2021, DOI:10.32604/jrm.2021.016387

    Abstract The issue of accelerated forestry plantation with high-quality wood using the best soils in terms of productivity, fertilizers, and intensive treatment has become quite relevant due to increased demand for forestry products and higher requirements for environmentally friendly use of forest resources. This paper presents the results of a study on the impact of various techniques for treating coniferous plantations, including thinning, fertilization, and herbicide processing, on wood quality key indicators. The paper examined the wood density, correlation of early and late wood zones, and the cell wall thickness for 38-year-old pine trees grown on the sample plots of Siversky… More >

  • Open Access

    ARTICLE

    Hyperledger Fabric Blockchain: Secure and Efficient Solution for Electronic Health Records

    Mueen Uddin1,*, M. S. Memon2, Irfana Memon2, Imtiaz Ali2, Jamshed Memon3, Maha Abdelhaq4, Raed Alsaqour5

    CMC-Computers, Materials & Continua, Vol.68, No.2, pp. 2377-2397, 2021, DOI:10.32604/cmc.2021.015354

    Abstract Background: Electronic Health Record (EHR) systems are used as an efficient and effective technique for sharing patient’s health records among different hospitals and various other key stakeholders of the healthcare industry to achieve better diagnosis and treatment of patients globally. However, the existing EHR systems mostly lack in providing appropriate security, entrusted access control and handling privacy and secrecy issues and challenges in current hospital infrastructures. Objective: To solve this delicate problem, we propose a Blockchain-enabled Hyperledger Fabric Architecture for different EHR systems. Methodology: In our EHR blockchain system, Peer nodes from various organizations (stakeholders) create a ledger network, where… More >

  • Open Access

    ARTICLE

    Prediction of Cloud Ranking in a Hyperconverged Cloud Ecosystem Using Machine Learning

    Nadia Tabassum1, Allah Ditta2, Tahir Alyas3, Sagheer Abbas4, Hani Alquhayz5, Natash Ali Mian6, Muhammad Adnan Khan7,*

    CMC-Computers, Materials & Continua, Vol.67, No.3, pp. 3129-3141, 2021, DOI:10.32604/cmc.2021.014729

    Abstract Cloud computing is becoming popular technology due to its functional properties and variety of customer-oriented services over the Internet. The design of reliable and high-quality cloud applications requires a strong Quality of Service QoS parameter metric. In a hyperconverged cloud ecosystem environment, building high-reliability cloud applications is a challenging job. The selection of cloud services is based on the QoS parameters that play essential roles in optimizing and improving cloud rankings. The emergence of cloud computing is significantly reshaping the digital ecosystem, and the numerous services offered by cloud service providers are playing a vital role in this transformation. Hyperconverged… More >

  • Open Access

    ARTICLE

    An Analysis of the Operation Mechanism of Chemical Industry Park Ecosystem Based on Theory of Ecological Organization

    Bilin Xu, Mei Han*

    Energy Engineering, Vol.118, No.2, pp. 323-339, 2021, DOI:10.32604/EE.2021.013384

    Abstract Based on the theory of ecological organization, this paper analyzes the operation mechanism of chemical industry park (CIP) ecosystem by means of dynamic simulation. The research shows that the CIP ecosystem is a complex ecological system whose operation mechanism includes two levels, namely individual enterprises and ecosystem. At the level of individual enterprise, there are competition, symbiosis, invasion and other interactions between enterprises in the CIP ecosystem. Through the pre-determined judgment of the competition effect coefficient and the symbiosis effect coefficient, we calculate how the enterprises influence each other, and then generate their respective operation paths, and finally realize the… More >

  • Open Access

    ARTICLE

    The Measurement of the Software Ecosystem’s Productivity with GitHub

    Zhifang Liao1, Yiqi Zhao1, Shengzong Liu2, Yan Zhang3, Limin Liu1,*, Jun Long1

    Computer Systems Science and Engineering, Vol.36, No.1, pp. 239-258, 2021, DOI:10.32604/csse.2021.014144

    Abstract Software productivity has always been one of the most critical metrics for measuring software development. However, with the open-source community (e.g., GitHub), new software development models are emerging. The traditional productivity metrics do not provide a comprehensive measure of the new software development models. Therefore, it is necessary to build a productivity measurement model of open source software ecosystem suitable for the open-source community’s production activities. Based on the natural ecosystem, this paper proposes concepts related to the productivity of open source software ecosystems, analyses influencing factors of open source software ecosystem productivity, and constructs a measurement model using these… More >

  • Open Access

    ARTICLE

    Glyphosate retention in grassland riparian areas is reduced by the invasion of exotic trees

    Giaccio GCM1, P Laterra2, VC Aparicio3, JL Costa3

    Phyton-International Journal of Experimental Botany, Vol.85, pp. 108-116, 2016, DOI:10.32604/phyton.2016.85.108

    Abstract In this study, we examined some aspects regarding the effect of willow trees (Salix fragilis L.) invasion of grassland riparian environments in the Argentinean Pampas on the runoff reduction, sedimentation and glyphosate retention in the riparian vegetation strip (RVS). To assess the influence of willows on the filtering mechanisms, we performed runoff simulation experiments in plots of 1.5 x 2.5 m, in coastal environments characterized by the presence of willows or the lack of trees. Despite the short length of the experimental plots, the retention of glyphosate in the controls, with no trees, was higher and reached almost 74%. Nevertheless,… More >

  • Open Access

    ARTICLE

    Herbicide combinations to control the weed seedbank in an upland cotton field

    Pereira JR1, AE Duarte2, JB Pitombeira3, MAP da Silva2, NE de M Beltrão1, LM Barros2

    Phyton-International Journal of Experimental Botany, Vol.82, pp. 275-279, 2013, DOI:10.32604/phyton.2013.82.275

    Abstract An experiment was conducted in dryland conditions of the Brazilian Northeast to determine the number of viable weed seeds (seedbank) in an upland cotton crop, and its distribution in the soil profile, before and after using various herbicide treatments. A randomized block design in a split-plot block scheme with 6 replications was used, where the main plots were constituted by a factorial (13 treatments and 2 sampling soil depths), and the subplots by 2 sampling dates. The seedbank was determined by germination of the recovered weed seeds obtained from different soil depths. The highest number of viable weed seeds in… More >

  • Open Access

    ARTICLE

    Application of the Participatory Rural Appraisal (PRA) to assess the ethnobotany and forest conservation status of the Zarghoon Juniper Ecosystem, Balochistan, Pakistan

    Bazai ZA1, RB Tareen1, AKK Achakzai1, H Batool2

    Phyton-International Journal of Experimental Botany, Vol.82, pp. 69-74, 2013, DOI:10.32604/phyton.2013.82.069

    Abstract The data collection approach called Participatory Rural Appraisal (PRA) was used in five villages: Killi Tor Shore; Medadzai; Ghunda; Kala Ragha, and Killi Shaban. Up to five groups were sampled in each village, comprising a total of 17 villages within the Zarghoon Juniper ecosystem. This area is rich both historically and culturally for using medicinal plants, mostly by women (60%). In this study, 26 species of medicinal plants fit in 20 genera and 13 families. They are used by aboriginal people via the indigenous knowledge they have for the treatment of many diseases. About 60, 35, and 5% of the… More >

  • Open Access

    ARTICLE

    Microbial diversity, metagenomics and the Yucatán aquifer

    Rojas-Herrera R1, M Zamudio-Maya1, L Arena-Ortiz2, RC Pless3, A O’Connor-Sánchez4

    Phyton-International Journal of Experimental Botany, Vol.80, pp. 231-240, 2011, DOI:10.32604/phyton.2011.80.231

    Abstract Mexico counts among the five countries with the highest biodiversity in the world. In the Yucatán Peninsula, there are aquatic ecosystems with a very special microbial diversity. These ecosystems are essential for the ecological equilibrium of the region, and are seriously threatened by human activities. Access and knowledge of the microbial resources of these environments have an enormous scientific interest, and could potentially result in biotechnological products which could lead to more efficient and environmentally friendly processes; it could also offer a full arsenal of microorganisms and/or novel molecules to the local and world industry to face the current needs.… More >

  • Open Access

    ARTICLE

    Contributions of ecological facilitation for restoring environments with high conservation value in the Argentine Patagonia

    González FM, DR Pérez

    Phyton-International Journal of Experimental Botany, Vol.86, pp. 332-339, 2017, DOI:10.32604/phyton.2017.86.332

    Abstract The Argentine arid Patagonia, in general, and ‘La Payunia’ ecosystem in particular, are important areas for conservation due to the high number of endemic species. However, this region presents a high level of degradation as a result of human activities. Thus, ecological rehabilitation strategies need to be implemented to recover certain areas. The main objectives of this study were to (1) evaluate the reintroduction of two selected native species in severely degraded areas, and (2) determine if the survival and growth of an endemic shrub species, Senna arnottiana, increase when it is associated with a perennial grass, Pappostipa speciosa. These… More >

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