Relevant bibliographies by topics / Ecology/environ

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Academic literature on the topic 'Ecology/environ'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Ecology/environ"

1

Mohiuddin, KM, MM Alam, I. Ahmed, HM Zakir, and AK Chowdhury. "Physicochemical Properties and Metallic Constituent Load in the Water Samples of the Buriganga of Bangladesh." Journal of Environmental Science and Natural Resources 8, no. 2 (2016): 141–46. http://dx.doi.org/10.3329/jesnr.v8i2.26881.

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The study was conducted to assess the level of Cu, Zn, Pb, Cr, Fe, Mn, Cd and Ni contamination in the water samples of the Buriganga river. Total 14 water samples were collected from different areas of upstream of the Buriganga river to determine the physicochemical properties, concentration of different metallic constituents and assess the heavy metal pollution load. Atomic Absorption Spectrometer was used for analyzing the heavy metals of the samples. The mean concentration of Ca, Mg, Na, K in water samples were 0.779, 0.889, 140.39, 26.9 ?g mL-1, respectively. The mean concentration of Cr, Pb, Fe, Cu, Zn and Mn in the water samples were 0.17, 0.05, 0.67, 0.22, 0.55 and 0.17 ?g mL-1, respectively. The amount of Cd in all samples and Pb in 10 samples was below detectable limit of the instrument (0.01 ?g mL-1). Water pH ranged from 4.09 to 7.41 and EC was 346 to 7720 µS cm-1. Magnitude of heavy metal pollution in the Buriganga river system implies that the condition is very alarming and may severely affect the aquatic ecology of the river. To minimize the severe impact on city dwellers and aquatic ecology of the Buriganga river, sustainable steps and continuous monitoring on pollution prevention and cleanup operation is suggested.J. Environ. Sci. & Natural Resources, 8(2): 141-146 2015
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Qi, Fengxia, Ping Chen, and Page W. Caufield. "The Group I Strain of Streptococcus mutans, UA140, Produces Both the Lantibiotic Mutacin I and a Nonlantibiotic Bacteriocin, Mutacin IV." Applied and Environmental Microbiology 67, no. 1 (2001): 15–21. http://dx.doi.org/10.1128/aem.67.1.15-21.2001.

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ABSTRACT Strains of Streptococcus mutans produce at least three mutacins, I, II, and III. Mutacin II is a member of subgroup AII in the lantibiotic family of bacteriocins, and mutacins I and III belong to subgroup AI in the lantibiotic family. In this report, we characterize two mutacins produced by UA140, a group I strain of S. mutans. One is identical to the lantibiotic mutacin I produced by strain CH43 (F. Qi et al., Appl. Environ. Microbiol. 66:3221–3229, 2000); the other is a nonlantibiotic bacteriocin, which we named mutacin IV. Mutacin IV belongs to the two-peptide, nonlantibiotic family of bacteriocins produced by gram-positive bacteria. Peptide A, encoded by gene nlmA, is 44 amino acids (aa) in size and has a molecular mass of 4,169 Da; peptide B, encoded bynlmB, is 49 aa in size and has a molecular mass of 4,826 Da. Both peptides derive from prepeptides with glycines at positions −2 and −1 relative to the processing site. Production of mutacins I and IV by UA140 appears to be regulated by different mechanisms under different physiological conditions. The significance of producing two mutacins by one strain under different conditions and the implication of this property in terms of the ecology of S. mutans in the oral cavity are discussed.
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Islam, MR, and MG Mostafa. "Textile Dyeing Effluents and Environment Concerns - A Review." Journal of Environmental Science and Natural Resources 11, no. 1-2 (2019): 131–44. http://dx.doi.org/10.3329/jesnr.v11i1-2.43380.

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Textile dyeing effluent is considered as one of the most environmentally unfriendly industrial processes. The study aimed to review the different types of textile dyes use in the industrial processes and their contribution to environmental pollution in South Asian countries. The article was prepared to compile all present data from different journals and website on textile dyeing effluents characterization in South Asia. A wide variety of synthetic dyes like azo dye, vat, reactive dye, disperse dye, etc. widely used in the textile sector. The result showed that some physicochemical parameters of the dyeing effluents (COD, TDS and BOD) exceeded their standard limits. The industrial effluents are affecting the main devastation to the aquaculture, agriculture, ecology, environment, and public health since the development of textile dyeing industries in these countries. Now a day, its proper supervision and curative measures like removal system have become the furthermost thoughtful tasks all over the world and the developing and transition economies countries in particular. It is imperative to take immediate steps to reduce the environmental pollution due to discharge the untreated textile dye effluents.
 J. Environ. Sci. & Natural Resources, 11(1-2): 131-144 2018
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Islam, MR, S. Sikder, MM Bahadur, and MHR Hafiz. "Effect of Different Fertilizer Management on Soil Properties and Yield of Fine Rice Cultivar." Journal of Environmental Science and Natural Resources 5, no. 1 (2012): 239–42. http://dx.doi.org/10.3329/jesnr.v5i1.11588.

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The experiment was conducted at the Research Farm of Crop Physiology and Ecology Department, Hajee Mohammad Danesh Science and Technology University, Dinajpur during 14 August to 7 December, 2008 to study the effect of (different organic and inorganic) fertilizer management on soil properties and yield of five fine rice cultivars viz., Rajshahi swarna, Silkumul, Kataribhog, Lal pajam and Sanla. The experiment was laid out in a split plot design with three replications. For post harvest soil, bulk density and pH gradually decreased in organic fertilizer management compared to inorganic fertilizer management. But percent organic carbon (0.68 to 0.80%) and organic matter (1.19 to 1.37%) of soil increased in organic management compared to inorganic management (0.53 to 0.66% and 0.91 to 1.14%, respectively). All the cultivars gave some-what better yield under inorganic management where the yield variation was minimum between organic and inorganic management. Conversely, organic culture had beneficial effects in improving soil properties and the sustainable agriculture mostly depends on soil organic matter. This organic matter will remain stable by using organic fertilizer. DOI: http://dx.doi.org/10.3329/jesnr.v5i1.11588 J. Environ. Sci. & Natural Resources, 5(1): 239-242, 2012
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Shireen Jahn Kassim Illyani Ibrah, Puteri, and . "Ecological Urbanism in the Tropics Studies on the Sustainable Dimensions of Malay Traditional Urban Centers." International Journal of Engineering & Technology 7, no. 3.9 (2018): 93. http://dx.doi.org/10.14419/ijet.v7i3.9.15285.

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Many of the present eco-cities are designed and planned with an emphasis on high technology and infrastructure yet the meaning of sustainability itself implies a balance between past and present. Past urban configurations that rise from earlier traditional socio-cultural structures reflect sustainable principles localised to climate and ecology. The aim of this study is to reconstruct urban morphologies be-fore the advent of the automobile in order to analyse and characterise urban forms that are aligned with ecological criteria such as walk-ability, permeability and shade. Three traditional urban center or ‘cores’ in tropical Malaysia which had reigned during the early colo-nial era yet still related sultanate-based polities are mapped in terms of morphologies and these urban ‘core’ configurations were esti-mated and composed according to historical documents and evidences . These urban patterns are then discussed with regards to the present principles and criteria of green urbanism. The reconstructed and mapped urban cores are discussed in relation to green urban-ism principles and criteria, namely, based on global sustainable standards namely the LEED ND (Leadership in Energy and Environ-mental Design) version 4 neighbourhood rating system. The findings from this study suggest the contextualization of sustainable criteria according to climate and postulate the differences between traditional urban morphologies that can further regionalism principles of current green urbanism and further contextualise key principles in international standards on urbanism.
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Vola, Paola, Lorenzo Gelmini, and Lucrezia Songini. "What does the Business Model tell us about Natural Capital? Insights from African Integrated Reports." MANAGEMENT CONTROL, no. 1 (March 2021): 75–96. http://dx.doi.org/10.3280/maco2021-001-s1005.

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The economics of ecosystems and biodiversity (TEEB, 2010) has emphasized the importance of business sectors involved in ecology, biodiversity, and the environ-ment's entire conservation and protection process. Corporate sustainability raises the question of how environmental and social management can be better integrat-ed into economic business goals. The latter is important in order to trace the actual impact of firms' actions on the environment by means of disclosure reports and in order to identify and promote business organizations' virtuous behaviour. We investigate the type of information provided on natural capital and its posi-tioning within the integrated report (IR) body (the locus). This element is critical in order to understand whether the information provided is effective and, if so, whether it is likely to be translated into actions that impact the environment tangi-bly. We undertook an empirical analysis of the IR corpus's disclosure of natural capi-tal in order to trace whether and, if so, how natural capital information is embod-ied in business activities, notably in IR's business model (BM) section. We did so by investigating South African IR a very promising research domain, due to the environmental wealth and the Johannesburg Stock Exchange regulation that mandates listed companies to provide an IR. Our study sheds lights on real commitment to sustainability, discussing the type of information that the companies provide and its link to strategy implementation.
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7

Khaled, AM, S. Sikder, MR Islam, MA Hasan, and MM Bahadur. "Growth Yield and Yield Attributes of Tomato (Lycopersicon esculentum Mill.) as Influenced by Indole Acetic Acid." Journal of Environmental Science and Natural Resources 8, no. 1 (2015): 139–45. http://dx.doi.org/10.3329/jesnr.v8i1.24687.

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The experiment was conducted at research field and laboratory of the Department of Crop Physiology and Ecology, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh during the period of December 2013 to April 2014. The experiment was laid out in two factors randomized complete block design with three replications including three concentrations of Indole Acetic Acid (0, 100 and 200 ppm) and three tomato varieties (BARI tomato 7, Manik and Ratan). Plant height, number of leaves and number of branches, days required for first flower initiation, days required for 50% flowering, days required for fruit setting, fruit cluster plant-1, fruit plant-1, weight tomato-1, yield plant-1, yield plot-1 and yield hectare-1 were significant influenced by the combined application of IAA and varieties of tomato. BARI Tomato-7 had the highest fruit yield with 100 ppm IAA and the lowest yield was observed in Ratan with 0 ppm IAA. IAA treated plots showed better performance for growth parameters and yield compared to control condition and 100 ppm IAA was more suitable than the 200 ppm IAA for higher yield of tomato cultivation. Among the treatment combinations, BARI Tomato-7 with 100 ppm IAA was superior, Ratan with 0 ppm IAA was inferior and BARI Tomato-7 with 200 ppm IAA, Manik with 200 ppm IAA and Ratan with 200 ppm IAA treated plots showed the intermediate results for yield and yield components.J. Environ. Sci. & Natural Resources, 8(1): 139-145 2015
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8

Shoaf-Sweeney, Kari D., Charles L. Larson, Xiaoting Tang, and Michael E. Konkel. "Identification of Campylobacter jejuni Proteins Recognized by Maternal Antibodies of Chickens." Applied and Environmental Microbiology 74, no. 22 (2008): 6867–75. http://dx.doi.org/10.1128/aem.01097-08.

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ABSTRACT Campylobacter jejuni is one of the leading bacterial causes of food-borne gastroenteritis. Infection with C. jejuni is frequently acquired through the consumption of undercooked poultry or foods cross-contaminated with raw poultry. Given the importance of poultry as a reservoir for Campylobacter organisms, investigators have performed studies to understand the protective role of maternal antibodies in the ecology of Campylobacter colonization of poultry. In a previous study, chicks with maternal antibodies generated against the S3B strain of C. jejuni provided protection against Campylobacter colonization (O. Sahin, N. Luo, S. Huang, and Q. Zhang, Appl. Environ. Microbiol. 69:5372-5379, 2003). We obtained serum samples, collectively referred to as the C. jejuni S3B-SPF sera, from the previous study. These sera were determined to contain maternal antibodies that reacted against C. jejuni whole-cell lysates as judged by enzyme-linked immunosorbent assay. The antigens recognized by the C. jejuni S3B-SPF antibodies were identified by immunoblot analysis, coupled with mass spectrometry, of C. jejuni outer membrane protein extracts. This approach led to the identification of C. jejuni proteins recognized by the maternal antibodies, including the flagellin proteins and CadF adhesin. In vitro assays revealed that the C. jejuni S3B-SPF sera retarded the motility of the C. jejuni S3B homologous strain but did not retard the motility of a heterologous strain of C. jejuni (81-176). This finding provides a possible mechanism explaining why maternal antibodies confer enhanced protection against challenge with a homologous strain compared to a heterologous strain. Collectively, this study provides a list of C. jejuni proteins against which protective antibodies are generated in hens and passed to chicks.
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9

Huda, ME, and MR Nabi. "Application of Inorganic Fertilizers and Organic Manures on the Production of Autotrophic Plankton in Madhupur Tract Soil Contained Miniature Tank." Journal of Environmental Science and Natural Resources 10, no. 1 (2017): 9–14. http://dx.doi.org/10.3329/jesnr.v10i1.34687.

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Appropriate fertilizer and their impact on physico-chemical parameters of water and productivity is very important for aquaculture and ecology. Optimum fertilizer dose can help in fish farmer as well as aquaculture sector. From the study it was found that the total physicochemical parameters of water were suitable for aquaculture, drinking water, irrigation and domestic use. The average water temperature was 26.45±2.75oC; 26.50±3.24oC; 25.83±4.08oC; 26.57±3.02oC and 26.53±2.93oC for MCRT-1 to 5 gradually. Water pH in an average was 7.37±0.61; 7.44±0.55; 7.25±0.58; 7.33±0.54 and 7.47±0.49 for Minature Circular Research Tank (MCRT)-1 to 5 respectively. Average water DO were 6.98±1.05 mgl-1; 6.75±1.53 mgl-1; 6.90±1.64 mgl-1; 6.59±1.19mgl-1 and 6.77±1.60mgl-1 for MCRT-1 to 5 respectively. Average water hardness were 71.88 ± 20.47 mgl-1; 60.5 ±2 1.25 mgl-1; 83.38 ± 23.39 mgl-1; 59.13 ± 25.57 mgl-1 and 52.63 ± 7.92 mgl-1 for MCRT-1 to 5 gradually. Average water total phosphorus were 0.77 ± 0.18 mgl-1; 0.83 ± 0.19 mgl-1; 0.78 ± 0.21 mgl-1; 0.84 ± 0.17 mgl-1 and 0.84 ± 0.16 mgl-1 for MCRT-1 to 5 gradually. From planktonic study it was found that the highest phytoplankton and Zooplankton were in MCRT-3. Phytoplanktons were under 27 no. of genera. Their groups were Cyanophyceae, Chlorophyceae, Bacillariophyceae, Euglenophyceae and Hepatecae.Zooplankton were five major taxa and they were Protozoa, Rotifera, Cladocera, Copepod and Ostracoda respectively.J. Environ. Sci. & Natural Resources, 10(1): 9-14 2017
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Yamada, Takeshi, Yuji Sekiguchi, Hiroyuki Imachi, Yoichi Kamagata, Akiyoshi Ohashi, and Hideki Harada. "Diversity, Localization, and Physiological Properties of Filamentous Microbes Belonging to Chloroflexi Subphylum I in Mesophilic and Thermophilic Methanogenic Sludge Granules." Applied and Environmental Microbiology 71, no. 11 (2005): 7493–503. http://dx.doi.org/10.1128/aem.71.11.7493-7503.2005.

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ABSTRACT We previously reported that the thermophilic filamentous anaerobe Anaerolinea thermophila, which is the first cultured representative of subphylum I of the bacterial phylum Chloroflexi, not only was one of the predominant constituents of thermophilic sludge granules but also was a causative agent of filamentous sludge bulking in a thermophilic (55°C) upflow anaerobic sludge blanket (UASB) reactor in which high-strength organic wastewater was treated (Y. Sekiguchi, H. Takahashi, Y. Kamagata, A. Ohashi, and H. Harada, Appl. Environ. Microbiol. 67:5740-5749, 2001). To further elucidate the ecology and function of Anaerolinea-type filamentous microbes in UASB sludge granules, we surveyed the diversity, distribution, and physiological properties of Chloroflexi subphylum I microbes residing in UASB granules. Five different types of mesophilic and thermophilic UASB sludge were used to analyze the Chloroflexi subphylum I populations. 16S rRNA gene cloning-based analyses using a 16S rRNA gene-targeted Chloroflexi-specific PCR primer set revealed that all clonal sequences were affiliated with the Chloroflexi subphylum I group and that a number of different phylotypes were present in each clone library, suggesting the ubiquity and vast genetic diversity of these populations in UASB sludge granules. Subsequent fluorescence in situ hybridization (FISH) of the three different types of mesophilic sludge granules using a Chloroflexi-specific probe suggested that all probe-reactive cells had a filamentous morphology and were widely distributed within the sludge granules. The FISH observations also indicated that the Chloroflexi subphylum I bacteria were not always the predominant populations within mesophilic sludge granules, in contrast to thermophilic sludge granules. We isolated two mesophilic strains and one thermophilic strain belonging to the Chloroflexi subphylum I group. The physiological properties of these isolates suggested that these populations may contribute to the degradation of carbohydrates and other cellular components, such as amino acids, in the bioreactors.
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Books on the topic "Ecology/environ"

1

Zekt︠s︡er, I. S. Podzemnye vody kak komponent okruzhai︠u︡shcheĭ sredy. Nauchnyĭ mir, 2001.

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Savenkova, T. P. Okhrani︠a︡emye prirodnye territorii basseĭna ozera Baĭkal: Protected natural territories of the lake Baikal watershed. Institut geografii SO RAN, 2001.

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Menʹshikov, V. V. Nekotorye novye napravlenii︠a︡ khimicheskoĭ ėkologii: Marerialy konferent︠s︡ii 14 noi︠a︡bri︠a︡. Izd-vo MNĖPU, 2001.

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Valeeva, Ė. I. Rolʹ vodno-bolotnykh ugodiĭ v ustoĭchivom razvitii severa Zapadnoĭ Sibiri. IPOS SO RAN, 2001.

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Ignatov, V. V. Fundamentalʹnye i prikladnye aspekty funkt︠s︡ionirovanii︠a︡ vodnykh ėkosistem: Problemy i perspektivy gidrobiologii i ikhtiologii v XXI veke : materialy Vserossiĭskoĭ nauchnoĭ konferent︠s︡ii, 27-30 avgusta 2001 goda, Saratov. Izd-vo Saratovskogo universiteta, 2001.

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Vasilʹeva, N. Ispolʹzovanie dannykh letopisi prirody dli︠a︡ monitoringa bioraznoobrazii︠a︡ v Barent︠s︡-Evro-Arkticheskom regione: Materialy mezhdunarodnogo seminara v Petrozavodske, Vodlozere, 13-16 ii︠u︡ni︠a︡ 2001 goda. Ėkologicheski ĭ t︠s︡entr "Svankhovd", 2002.

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Russia?) I︠U︡zhno-Uralʹskie obshchestvennye slushanii︠a︡ (4th 1999 Kunashak. Techa-99: Sot︠s︡ialʹnai︠a︡ i radiat︠s︡ionnai︠a︡ zashchita naselenii︠a︡, reabilitat︠s︡ii︠a︡ territoriĭ : informat︠s︡ionnye material IV I︠U︡zhno-Uralʹskikh obshchestvennykh slushaniĭ. Administrat︠s︡ii︠a︡ Cheli︠a︡binskoĭ oblasti, 1999.

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Savvushkin, N. N. V lesakh Prisai͡a︡nʹi͡a︡: Ocherki. Izd-vo Khakasskogo gos. universiteta im. N.F. Katanova, 2001.

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Pavlov, Saveliĭ Efimovich. Ėkologii͡a︡: Budet li strashnyĭ sud? "Uradzhaĭ", 1999.

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I︠A︡nkovskiĭ, O. I︠U︡. Toksichnostʹ kisloroda i biologicheskie sistemy: Ėvoli︠u︡t︠s︡ionnye, ėkologicheskie i mediko-biologicheskie aspekty. Igra, 2000.

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Book chapters on the topic "Ecology/environ"

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Fath, B. D. "Ecological Network Analysis, Environ Analysis." In Encyclopedia of Ecology. Elsevier, 2008. http://dx.doi.org/10.1016/b978-008045405-4.00688-1.

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Conference papers on the topic "Ecology/environ"

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Serafimovski, Todor. "INFLUENCE OF THE BUCHIM COPPER LEACHING FACTORY ON THE ENVIRON AROUND THE ACTIVE BUCHIM COPPER MINE." In 14th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION. Stef92 Technology, 2014. http://dx.doi.org/10.5593/sgem2014/b51/s20.052.

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