Academic literature on the topic 'Undesirable Species'

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Journal articles on the topic "Undesirable Species"

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Kumar, Rakesh. "Controlling Undesirable Algal Species From Aquatic Ecosystems." International Journal on Algae 25, no. 4 (2023): 383–88. http://dx.doi.org/10.1615/interjalgae.v25.i4.60.

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Control of undesirable algal species is the primary requirement for the long-term maintenance of health of an aquatic ecosystem. Their excessive growth may cause ecosystem imbalance by depleting the water quality and affecting the life of aquatic fauna. The present paper describes the physical, chemical and biological methods of controlling undesirable algal species.
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KIRKMAN, L. KATHERINE, ROBERT J. MITCHELL, MELANIE J. KAESER, STEPHEN D. PECOT, and KIMBERLY L. COFFEY. "The perpetual forest: using undesirable species to bridge restoration." Journal of Applied Ecology 44, no. 3 (2007): 604–14. http://dx.doi.org/10.1111/j.1365-2664.2007.01310.x.

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Winkler, Jan, Markéta Ježová, Radek Punčochář, et al. "Fire Hazard: Undesirable Ecosystem Function of Orchard Vegetation." Fire 6, no. 1 (2023): 25. http://dx.doi.org/10.3390/fire6010025.

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Fires will become an increasingly frequent perturbation even under the conditions of the mild climate zone and will interfere with the agricultural landscape. Fire is a natural phenomenon, and depending on ecosystems, vegetation may develop and contribute to the occurrence and spread of fire. Vegetation of the sour cherry orchard located in the climatically dry conditions of the South Moravian Region, Czech Republic (CR), was evaluated. Vegetation assessment was performed using phytocenological relevé. In each variant, 10 relevé were recorded. Coverage of the found species was estimated direct
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Baruah, Gaurav, and Meike Wittmann. "Reviving collapsed plant–pollinator networks from a single species." PLOS Biology 22, no. 10 (2024): e3002826. http://dx.doi.org/10.1371/journal.pbio.3002826.

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Mutualistic ecological networks can suddenly transition to undesirable states due to small changes in environmental conditions. Recovering from such a collapse can be difficult as restoring the original environmental conditions may be infeasible. Additionally, such networks can also exhibit a phenomenon known as hysteresis, whereby the system could exhibit multiple states under the same environmental conditions, implying that ecological networks may not recover. Here, we attempted to revive collapsed mutualistic networks to a high-functioning state from a single species, using concepts from si
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Jaskuła, Radomir, Anna Sulikowska-Drozd, Aleksandra Jabłońska, Krzysztof Banaś, and Tomasz Rewicz. "Undesirable immigrants: hobbyist vivaria as a potential source of alien invertebrate species." PeerJ 7 (September 17, 2019): e7617. http://dx.doi.org/10.7717/peerj.7617.

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Background Small size and large diversity of adaptations make invertebrates a group of animals which can be easily transported by different human activities. Many species can travel as “hitchhikers” with plant material (both on plant surfaces and in the soil), including plants used for decoration in vivaria. Vivaria are often tropical in nature environments, with high temperatures and humidity, suitable for invertebrates from tropical regions. Although many of such invertebrates cannot survive in temperate regions where harsh weather conditions are present, it is also known that some can succe
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Veskovic-Moracanin, Slavica, Dragica Karan, Dragan Milicevic, and Aleksandra Stjepanovic. "The presence of undesirable mould species on the surface of dry sausages." Zbornik Matice srpske za prirodne nauke, no. 114 (2008): 97–103. http://dx.doi.org/10.2298/zmspn0814097v.

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Transition from manufacture to the industrial way of meat production and processing, as well as contemporary concept of food quality and safety, have led to the application of starter cultures. Their application leads towards the streamlining of the production process in the desired direction, quality improvement and its harmonization, and thereby to its standardization. Application of moulds in the meat industry is based on positive effects of their proteolytic and lipolytic egzoenzymes which, as a consequence, leads to the creation of characteristic sensory properties ('flavor') of fermented
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Loftis, David L. "Preharvest Herbicide Treatment Improves Regeneration in Southern Appalachian Hardwoods." Southern Journal of Applied Forestry 9, no. 3 (1985): 177–80. http://dx.doi.org/10.1093/sjaf/9.3.177.

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Abstract Preharvest herbicide treatment of undesirable and unmerchantable vegetation was compared to postharvest felling. Ten years after the clearcut harvesting, the preharvest treatment had increased the number and proportion of desirable stems and decreased the number and proportion of undesirable sprouts in the dominant stand. Stands that developed after the preharvest herbicide treatment are dominated by single-stemmed desirable species, and excellent future stocking is assured. Because of the presence of undesirable sprout clumps, plots receiving the postharvest felling have an uncertain
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Lim, Haw Chuan, Navjot S. Sodhi, Barry W. Brook, and Malcom C. K. Soh. "Undesirable aliens: factors determining the distribution of three invasive bird species in Singapore." Journal of Tropical Ecology 19, no. 6 (2003): 685–95. http://dx.doi.org/10.1017/s0266467403006084.

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Biological invasions are a major environmental concern due to their negative impacts on biodiversity and economics. We determined the population sizes and habitat-abundance relationships of the three most successful invasive bird species in Singapore: the house crow Corvus splendens, white-vented myna Acridotheres javanicus and common myna A. tristis. Estimated population sizes of the three species between February 2000 and February 2001 were between 106 000-176 000, 122 000-155 000 and 20 000-29 000, respectively. Population size of the house crow grew dramatically (>30-fold) in the last 1
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Glasenapp, Cattò, Villa, Saracchi, Cappitelli, and Papenbrock. "Promoting Beneficial and Inhibiting Undesirable Biofilm Formation with Mangrove Extracts." International Journal of Molecular Sciences 20, no. 14 (2019): 3549. http://dx.doi.org/10.3390/ijms20143549.

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The extracts of two mangrove species, Bruguiera cylindrica and Laguncularia racemosa, have been analyzed at sub-lethal concentrations for their potential to modulate biofilm cycles (i.e., adhesion, maturation, and detachment) on a bacterium, yeast, and filamentous fungus. Methanolic leaf extracts were also characterized, and MS/MS analysis has been used to identify the major compounds. In this study, we showed the following. (i) Adhesion was reduced up to 85.4% in all the models except for E. coli, where adhesion was promoted up to 5.10-fold. (ii) Both the sum and ratio of extracellular polysa
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Krieg, Randon J., and W. T. Witte. "EFFICACY OF A COPPER HYDROXIDE/LATEX PAINT FORMULATION FOR ROOT - PRUNING 41 SPECIES OF CONTAINERIZED NURSERY STOCK." HortScience 28, no. 5 (1993): 527f—527. http://dx.doi.org/10.21273/hortsci.28.5.527f.

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The root system of containerized nursery stock may become undesirably coiled or matted on the outer surface of the media. Various copper formulations painted on the interior of the container surface have been shown to control undesirable root growth in a few species. We tested a commercial formulation of 100 g/l copper hydroxide in a flowable latex paint formulation (SpinOut™) on 41 tree, shrub, and herbaceous species. Plants were grown 4 months in 7.5×7.5×15cm containers, either treated or untreated. Root density was evaluated on a scale of 1 to 5 (no roots on the surface to heavy rooting). A
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Dissertations / Theses on the topic "Undesirable Species"

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Ungerer, James L. "Effects of prescribed burning on undesirable plant species and soil physical properties on tallgrass prairies." Thesis, Kansas State University, 2013. http://hdl.handle.net/2097/16909.

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Master of Science<br>Department of Agronomy<br>Walt Fick<br>Prescribed burning has been a common conservation practice on native prairie dating back to the days of pioneer settlement. Advantages include increased forage quality, reduction of undesirable plants, improved wildlife habitat, removal of accumulated dead plant litter and relatively low costs. While spring is the commonly accepted time to burn, little research has been conducted on late-summer and fall burning for specific objectives that include targeting undesirable plant species and measuring potential effects on soil physical pro
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Byenkya, Gilbert Steven. "Impact of undesirable plant communities on the carrying capacity and livestock performance in pastoral systems of south-western Uganda." Texas A&M University, 2003. http://hdl.handle.net/1969.1/255.

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The impact of undesirable plant communities (Cymbopogon afronardus and woody species dominated by Acacia species) on livestock carrying capacity and performance was investigated on 15 farms in an Acacia/Cymbopogon dominated pastoral system of south-western Uganda. Species prevalence based on basal cover for grasses, frequency for forbs and effective canopy cover for trees/shrubs were determined on farms. The PHYGROW model was used to predict forage productivity for computation of carrying capacity. The NIRS/NUTBAL nutritional management system was used to determine cattle dietary CP and DOM
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Rocher, Léo. "Identification des paramètres de la végétation favorisant les arthropodes bénéfiques et les fonctions écologiques associées en viticulture : approche corrélative et expérimentale." Electronic Thesis or Diss., Avignon, 2024. http://www.theses.fr/2024AVIG0375.

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Le déclin de la biodiversité dans les agroécosystèmes est largement attribué à l'essor de l'agriculture moderne. Les principales causes sont la destruction des structures semi-naturelles, l’extension de la taille des parcelles agricoles et l'utilisation intensive d'intrants. Les arthropodes jouent un rôle important dans l’amélioration de services écosystémiques essentiels tels que la régulation des ravageurs et la pollinisation. Pour favoriser leur présence, la végétation est un facteur primordial. En effet, les plantes fournissent des ressources alimentaires cruciales et permettent la créatio
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Free, Jennifer Lynelle. "Inherently Undesirable: American Identity and the Role of Negative Eugenics in the Education of Visually Impaired and Blind Students in Ohio, 1870-1930." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1353009941.

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Desrochers, Valérie. "Utilisation de microboutures de saule pour prévenir le développement d'espèces indésirables." Thèse, 2019. http://hdl.handle.net/1866/22741.

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Books on the topic "Undesirable Species"

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Vanita, Ruth. The Dharma of Justice in the Sanskrit Epics. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780192859822.001.0001.

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This book examines how characters in the Mahabharata and the Ramayana debate questions of justice. The epics depict discrimination based on social categories such as gender, varṇa, species, age, and disability, and important characters often support discrimination. But the epics also criticize oppression in two ways—first, philosophically, through debates, and second, practically, through characters whose actions demonstrate that discrimination is wrong. Many characters in the epics (including men and women from all varṇas and those later considered outside the varṇa system) repeatedly proclai
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Peach, Ken. Committee Meetings. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198796077.003.0010.

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This chapter concerns the structure, organization and conduct of a meeting, including the special role of the chair of the committee. Meetings are an essential tool for getting things done, although, used skilfully, they can also be used to block the undesirable or unachievable. As meetings of one sort or another are an essential part of research life, professional scientists should aspire to be as efficient in these more managerial aspects as they are in the research itself. In this chapter, the various founding documents of the committee (terms of reference, standing orders, etc.) are descri
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Mittendorf, Martina. Legal Framework for Data Processing in Employee Fluctuation Risk Analysis – the European Regulation from a German Perspective. Technische Hochschule Wildau, 2021. http://dx.doi.org/10.15771/2824.

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In connection with the management of employee retention many Human Resources Managers feel the need to know who of their employees might leave the company in the near future. The more a company knows about the motives of those who might leave, the easier it is to get in contact with them. Thus it is not surprising that the HR Managers want to try to combine all the data they have or can get in order to predict the behavior of their employees. It is evident that the interpretation of data-combinations can give inaccurate predictions of the probability of departure of an employee, and it is unde
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Book chapters on the topic "Undesirable Species"

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Carter, Clifford W. "Management of Undesirable Native Plant Species." In Range Resources of the Southeastern United States. American Society of Agronomy and Crop Science Society of America, 2015. http://dx.doi.org/10.2134/asaspecpub21.c4.

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Pyke, David A., and Chad S. Boyd. "Manipulation of Rangeland Wildlife Habitats." In Rangeland Wildlife Ecology and Conservation. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34037-6_5.

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AbstractRangeland manipulations have occurred for centuries. Those manipulations may have positive or negative effects on multiple wildlife species and their habitats. Some of these manipulations may result in landscape changes that fragment wildlife habitat and isolate populations. Habitat degradation and subsequent restoration may range from simple problems that are easy to restore to complex problems that require multiple interventions at multiple scales to solve. In all cases, knowledge of the wildlife species’ habitat needs throughout their life history, of their population dynamics and h
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Cappitelli, Francesca, and Federica Villa. "Novel Antibiofilm Non-Biocidal Strategies." In Microorganisms in the Deterioration and Preservation of Cultural Heritage. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69411-1_5.

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AbstractSubaerial biofilm (SAB) formation on cultural heritage objects is often considered an undesirable process in which microorganisms and their by-products, e.g., enzymes and pigments, cause damage or alteration to a surface. Since biofilms are widespread phenomena, there has been a high demand for preventive and control strategies that resist their formation or reduce their negative effects once formed. Up to date, the main strategy to control biofilms has been the use of biocides. Because of their intrinsic properties, biocidal products can pose risks to humans, animals, and the environm
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Lockwood, Julie L., and Dustin J. Welbourne. "Undesirable impacts." In Invasive Species: A Very Short Introduction. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/actrade/9780198818281.003.0008.

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Abstract This chapter addresses the question of why impacts might be considered undesirable. It elaborates on the categories of economic, human health, and environmental impact. Invasive species often result in the loss of economic opportunities and ecosystem services. Meanwhile, invasive species also affect human health and wellbeing through the introduction and spread of infectious diseases and parasites. The chapter explains that any impact of invasive species is of environmental concern whether or not it is directly concerned with human health or the economy. To examine why environmental i
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Davis, Mark A. "Management of invasive species." In Invasion Biology. Oxford University PressOxford, 2009. http://dx.doi.org/10.1093/oso/9780199218752.003.0008.

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Abstract Real and substantial threats to human health, great economic harm, and other undesirable ecological impacts have fueled efforts to manage the spread and impact of non-native species posing these threats. As is the case with most problems, there are two general approaches one can take to deal with these threats—prevention and mitigation.
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Lockwood, Julie L., and Dustin J. Welbourne. "Nature abhors a definition." In Invasive Species: A Very Short Introduction. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/actrade/9780198818281.003.0002.

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Abstract This chapter covers how defining invasive species is problematic, but a definition provides practical utility for steering research, evaluating new findings, and developing management responses. The definition of what is invasive centres on species being non-native and either causing an impact or spreading through a region. The chapter also explains what is and is not a native species, again demonstrating the difficulty of categorizing such entities, and how values underpin whether impacts are considered undesirable.
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Daniela Manzano Guzmán, Sandra, Jose Augusto Drummond, and Cristiane Gomes Barreto. "Undesirable Neighbours: Eucalyptus and Protected Areas." In Protected Area Management - Recent Advances [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99831.

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Eucalyptus is the common name of a set of exotic species present in the Brazilian territory. They have a strong invasive potential which is detrimental to the preservation of native floral formations, particularly in protected areas. This research seeks to (i) understand the stage of eucalyptus invasion in the Brasilia National Park; (ii) identify the main vectors of the invasive populations and (iii) verify the possible role of the adjoining Brasília National Forest in the invasion and (iv) consider possible conflicts between the roles of these two different categories of protected areas. A s
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Lockwood, Julie L., and Dustin J. Welbourne. "An ounce of prevention is worth a pound of cure." In Invasive Species: A Very Short Introduction. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/actrade/9780198818281.003.0009.

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Abstract This chapter tackles invasive species management as a response to the undesirable impacts of invasive species. The management strategies employed by most governments roughly follow the stages of the invasion process, and are referred to as prevention and eradication, containment, and resource protection. It is shown that the cost of management action increases as the population size of the invasive species increases and becomes more widespread. The chapter highlights the various methods used to manage biological invasions throughout the invasion process and how goals shift as invasive
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Lockwood, Julie L., and Dustin J. Welbourne. "It is never simple." In Invasive Species: A Very Short Introduction. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/actrade/9780198818281.003.0010.

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Abstract This chapter expounds on the complexities of understanding and managing invasive species, grouping them into three broad areas. First, the chapter looks at how different people weigh the desirability of impacts since a single non-native species might produce both desirable and undesirable impacts, depending on who evaluates the desirability. Second, the chapter highlights the difficulties when invasive species positively affect endangered species, or when the invasive species is itself endangered. Finally, the chapter concludes by examining how climate change adds a new dimension to u
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Davis, Mark A. "Impacts of invasions." In Invasion Biology. Oxford University PressOxford, 2009. http://dx.doi.org/10.1093/oso/9780199218752.003.0007.

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Abstract Non-native species, like native species, can impact human health, national and local economies, and the ecosystems and ecological communities in which they reside. In fact, most non-native species do not have a large impact in any of these three areas. Some even have desirable effects. However, a small proportion of non-native species are considered harmful or undesirable owing to their impacts. In some instances, the harmful impacts can be dire. Introduced pathogens can threaten human health, crops, and livestock.
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Conference papers on the topic "Undesirable Species"

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Geissler, Brett, Renato De Paula, Carrie Keller-Schultz, Jennifer Lilley, and Vic Keasler. "Data Mining to Prevent Microbiologically Influenced Corrosion?" In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4080.

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Abstract Oilfield microorganisms are directly responsible for many problems in the oil and gas industry, including microbiologically influenced corrosion, biofouling, reservoir souring, as well as employee injury. Recent efforts in both industrial and academic microbiology labs have been focused on identifying the particular types of bacteria and archaea responsible for causing these issues. This knowledge will assist in the design of better prevention, treatment, and control strategies for microbial activity. A series of in-depth analyses were carried out on a database of field samples submit
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Yarbrough, Mark E., and Lon C. Brouse. "Cooling Tower Blowdown Reduction at Palo Verde Nuclear Generating Station." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93650.

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Abstract Palo Verde Nuclear Generating Station, operated by Arizona Public Service Company, is comprised of three 1,270 MW pressurized water reactors. The plant site is 55 miles west of Phoenix, Arizona, in the Sonoran desert. The Water Reclamation Facility is an on-site, 90 million gallon per day tertiary treatment plant, that receives secondary treated sewage from the cities of Phoenix and Tolleson. The plant operating license requires zero water discharge from the site. Evaporation ponds collect and detain tower blowdown and other non-radioactive wastewater streams. Original guidelines for
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Pupazan, Daniel, Andrei Lucian Gireada, George Artur Gaman, Cosmin Ilie, and Cristian Nicolescu. "DEVELOPING THE PRACTICAL SKILLS OF RESCUERS FOR INTERVENTIONS IN HIGH TEMPERATURE AREAS." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s03.34.

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In the case of dangerous incidents produced in industrial technological processes, where hydrogen is used, their mastery requires, in addition to a personnel servicing the facilities properly trained for such situations, the participation of professional staff for interventions in dangerous environments. The activity of intervention and rescue in special conditions, in potentially explosive areas due to the appearance of hydrogen can be carried out exclusively by specialized personnel trained and authorized in this regard, personnel using individual breathing protection devices. The critical f
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Egorov, A., A. Bubnov, L. Pavlyuchenkova, and A. Postnikov. "BIRCH CARE IN CUTTINGS USING SELECTIVE HERBICIDES." In FORESTRY, FOREST MANAGEMENT, STATE FOREST MANAGEMENT IN THE 21ST CENTURY: CHALLENGES AND SOLUTIONS. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2024. https://doi.org/10.58168/bugaevva2024_120-125.

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The relevance of the research is due to the demand for birch wood on the market and the lack of recommendations on the use of modern herbicides for its care. The purpose of the research was the selection of selective herbicides and the development of regulations for their use in lightening and agrotechnical care of birch. The effect of the herbicides magnum, magnum super, mortar and anchor-85 on birch, as well as on weedy (undesirable) vegetation, was studied in the field. Magnum preparations at the rates of 100, 200 and 300 g/ha and magnum super at the rates of 100 and 200 g/ha provided effec
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Yufereva, Nadezhda, and Maria Shchannikova. "SPECIES AND VARIETIES OF PERENNIAL GRASSES FOR MAKING OF STABLE LAWN COMMUNITIES." In Multifunctional adaptive feed production. Federal Williams Research Center of Forage Production and Agroecology, 2020. http://dx.doi.org/10.33814/mak-2020-22-70-59-64.

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The correct selection of species and varieties of perennial grasses for making of stable lawn herbages is an important task for the researchers. Research of lawn herbages was conducted for six years period on the experimental field of the Vyatka State Agricultural Academy. As a result, were specified domestic varieties of lawn grasses which suit for the conditions of the Kirov region and show resistance to adverse weather conditions observed during the years of research. Red fescue Sigma and meadow grass Vagant and Dar forming lawns from good to excellent quality. The number of shoots per unit
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Sircar, Indraneel, Rohan Gejji, Anup Sane, David Blunck, Scott Meyer, and Jay P. Gore. "Design and Testing of a High Pressure and High Temperature, Optically Accessible, Entrained Flow Coal Gasifier." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44201.

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Improved understanding of coal gasification chemical kinetics is needed to increase thermodynamic efficiency and to reduce undesirable CO2 emissions. This work describes an optically-accessible entrained-flow coal gasifier designed and built to allow measurements of the major species at various stages of the chemical reactions. The 2-meter tall gasifier consists of five subsystems: the optical diagnostics, steam generator, coal feeder, external heaters, and gas sampling and analysis. A stoichiometric H2-O2 flame generates superheated steam, the gasifying agent, which reacts with pulverized coa
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McCarthy, Larry, and Comas Haynes. "Steady and Pulsed Flow Performance Trends of Higher Concentration DMFCs." In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97115.

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Direct methanol fuel cells (DMFCs) are a promising source of energy due to their potentially high energy density, facilitated fuel delivery and storage, and precluded fuel processing. However, DMFCs have several challenges which need to be resolved before they can replace existing energy sources. Some of these challenges include lower power density, relatively high cost, and uncertain reliability. These issues are all promoted, at least in part, by the methanol crossover phenomenon, wherein membrane permeability allows the undesirable species transport of methanol from the anode to the cathode
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Stanisavljević, Dragana, Dušica Ćirković, Violeta Mickovski Stefanović, and Dragan Veličković. "HEMIJSKI SASTAV I SENZORNE KARAKTERISTIKE RAKIJA OD VOĆA." In XXVII savetovanje o biotehnologiji. University of Kragujevac, Faculty of Agronomy, 2022. http://dx.doi.org/10.46793/sbt27.509s.

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In addition to the main ingredients, ethanol and water, fruit brandies contain a small amount of a large number of secondary ingredients, which give these drinks specific organoleptic characteristics. Among these ingredients, there are also those that are harmful and undesirable, so the goal of the producer is to reduce their content as much as possible. In order to examine the quality of brandy, a chemical analysis and sensory evaluation of brandy obtained from different fruit species were performed. The content of ethanol and other parameters was within the limits expected for the tested bra
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Швецов, А. Н., and В. П. Упелниек. "THE ROLE OF INTRODUCTION IN THE FORMATION OF THE VEGETATION COVER OF THE CULTURAL LANDSCAPE." In Сотрудничество ботанических садов в сфере сохранения ценного растительного генофонда. Материалы Международной научной конференции, посвященной 10-летию Совета ботанических садов стран СНГ при МААН. Crossref, 2022. http://dx.doi.org/10.35102/cbg.2022.31.82.072.

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Роль культивируемых видов растений в современном культурном ландшафте весьма значительна. Интродукция, как и любая другая деятельность человека, может иметь некоторые нежелательные последствия, в том числе и экологического характера. В статье рассмотрены движущие силы, основные участники процесса переселения и культивирования растений, предложения по минимизации экологического ущерба. The role of cultivated plant species in the modern cultural landscape is very significant. Introduction, like any other human activity, may have some undesirable consequences, including environmental ones. The ar
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Jansone, Baiba, Edgars Dubrovskis, and Linards Sisenis. "INFLUENCE OF TREE SPECIES MIXTURE TO REDUCE WIND DAMAGES IN BIRCH STANDS." In GEOLINKS International Conference. SAIMA Consult Ltd, 2020. http://dx.doi.org/10.32008/geolinks2020/b2/v2/07.

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Climate change is linked to increase in frequency and/or severity of different damages in forest stands. Birch (Betula spp.) stands can be significantly affected by wind and snow (freezing rain). Aim of our study was to assess, if admixture of other tree species reduces the proportion of damaged trees in birch stands. Data from total of 836 sample plots (size 500m2) in birch stands at the age of up to 81 year were analysed. Among the mixed sands (MS) and pure stands (PS &gt;80% of single tree species), the mean proportion (± confidence interval) of damage was assessed from the total number (TN
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Reports on the topic "Undesirable Species"

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Weldon, James. Modelling the risks of Nymphoides peltata spread in Swedish lakes. Department of Aquatic Resources, Swedish University of Agricultural Sciences, 2024. http://dx.doi.org/10.54612/a.nmtj4tgmer.

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Species distribution modelling is a valuable tool for identifying areas most at risk of the spread of potentially harmful species. Here we model the environmental factors governing the distribution of a harmful species of concern that is currently found in Sweden at only a limited number of locations: the aquatic macrophyte N. peltata (sjögull). The most important factors determining risk of establishment are water chemistry (sufficient amounts of calcium is required), temperature (the species is partly limited by colder temperatures in Sweden) and connectivity to other water bodies. The resul
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Short, Mary, та Sherry Leis. Vegetation monitoring in the Manley Woods unit at Wilson’s Creek National Battlefield: 1998–2020. Редактор Tani Hubbard. National Park Service, 2022. http://dx.doi.org/10.36967/nrr-2293615.

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Natural resource management at Wilson’s Creek National Battlefield (NB) is guided by our understanding of the woodlands and prairies at the time of the Civil War battle in 1861. This report is focused on the Manley Woods unit of the park. This unit is an oak-hickory woodland in the Springfield Plain subsection of the Ozarks. Canopy closure for Missouri oak woodlands can be highly variable and ranges from 30–100% across the spectrum of savanna, open woodland, and closed woodland types. In 1861, the woodland was likely a savanna community. Changes in land use (e.g., fire exclusion) caused an increa
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