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Article ; Online: Coupled hydrodynamic modelling approach to assess land use change induced flood characteristics.

Jayapadma, J M M U / Wickramaarachchi, T N / Silva, G H A C / Ishidaira, H / Magome, J

2022 Volume 194, Issue 5, Page(s) 354

Abstract: MIKE 11 rainfall-runoff model and MIKE 21 overland flow model were successfully coupled in the MIKE FLOOD platform for flood simulation in Gin catchment (932 ... ...

Abstract	MIKE 11 rainfall-runoff model and MIKE 21 overland flow model were successfully coupled in the MIKE FLOOD platform for flood simulation in Gin catchment (932 km
MeSH term(s)	Agriculture ; Environmental Monitoring ; Floods ; Forests ; Hydrodynamics
Language	English
Publishing date	2022-04-11
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	782621-7
ISSN	1573-2959 ; 0167-6369
ISSN (online)	1573-2959
ISSN	0167-6369
DOI	10.1007/s10661-022-09986-7
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Article: Coupled hydrodynamic modelling approach to assess land use change induced flood characteristics

Jayapadma, J. M. M. U. / Wickramaarachchi, T. N. / Silva, G. H. A. C. / Ishidaira, H. / Magome, J.

Environmental monitoring and assessment. 2022 May, v. 194, no. 5

2022

Abstract: MIKE 11 rainfall-runoff model and MIKE 21 overland flow model were successfully coupled in the MIKE FLOOD platform for flood simulation in Gin catchment (932 km²) of Sri Lanka to assess land use change induced changes in flood discharge. MIKE 11 Nedbør- ... ...

Abstract	MIKE 11 rainfall-runoff model and MIKE 21 overland flow model were successfully coupled in the MIKE FLOOD platform for flood simulation in Gin catchment (932 km²) of Sri Lanka to assess land use change induced changes in flood discharge. MIKE 11 Nedbør-Afstrømings-Model (NAM) rainfall-runoff simulation depicted a good agreement with the observed discharge at Thawalama and Baddegama gauging stations. MIKE FLOOD, validated against the two major flood events that occurred in May 2003 and in May 2017, showed a reasonable agreement with the observed water depths and peak discharge values displaying more than 70% goodness of fit between the observed and simulated inundated extents. Dominant land use change processes in the catchment between 1999 and 2016 were identified as the forest area and built-up land expansion at the expense of agricultural land and bare land which possessed contradictory impacts on flood generation. The impact of a single factor, 17-year land use change, on flood formation was differentiated. In the upstream sub-catchment having 490 km², despite a 0.74% increase in the built-up land, 2.85% increase in the forest area had significantly contributed to mitigate the overall flood formation with 34% and 40% reduction in the peak discharge and the flood volume, respectively. Overall reduction of the flood discharge attributed to the forest expansion emphasised the importance of preserving forest cover and pervious area. The modelling framework presented in this typical tropical monsoon catchment study could be effectively used to quantify the land use change induced flow regime variations in similar catchments.
Keywords	agricultural land ; forests ; hydrodynamics ; hydrologic models ; land use change ; monsoon season ; overland flow ; runoff ; subwatersheds ; Sri Lanka
Language	English
Dates of publication	2022-05
Size	p. 354.
Publishing place	Springer International Publishing
Document type	Article
ZDB-ID	782621-7
ISSN	1573-2959 ; 0167-6369
ISSN (online)	1573-2959
ISSN	0167-6369
DOI	10.1007/s10661-022-09986-7
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Acute murine-betacoronavirus infection impairs testicular steroidogenesis and the quality of sperm production.

Figueiredo, A F A / Wnuk, N T / Brener, M R G / Farias, T O / Campolina-Silva, G H / Andrade, A C S P / Queiroz-Junior, C M / Menezes, G B / Teixeira, M M / Costa, V V / Costa, G M J

Journal of reproductive immunology

2024 Volume 163, Page(s) 104214

Abstract: Although several testicular alterations promoted by coronavirus infection have been demonstrated, the extent, causes, and players of testicular pathogenesis are not totally understood. The present study aimed to investigate the short-term effects on male ...

Abstract	Although several testicular alterations promoted by coronavirus infection have been demonstrated, the extent, causes, and players of testicular pathogenesis are not totally understood. The present study aimed to investigate the short-term effects on male fertility of intranasally administered murine hepatitis virus strain 3 (MHV-3), a member of the genus Betacoronavirus, which causes a severe systemic acute infection. This mouse model might be used as a in vivo prototype for investigating the impact of betacoronavirus on the endocrine and exocrine testicular functions with the advantage to be performed in a biosafety level 2 condition. Herein, we performed virological, histopathological, and molecular studies regarding the testicular spermatogenesis and the spermatic quality analyses in an MHV-3-infected C57BL/6 mice. The main outcomes showed that MHV-3 infects mouse testis and induces a testicular inflammatory state, impairing the steroidogenic pathway. The infection led to several alterations in the testicular parenchyma, such as: seminiferous epithelium sloughing, retention of residual bodies, germ cell apoptosis, alterations in intercellular junction proteins, and worse spermatogenic parameters. Moreover, the levels of plasmatic testosterone as well as the quality of sperm production reduced. Therefore, the present data suggest that the viral/inflammatory impairment of the steroidogenic pathway and the consequent imbalance of androgen levels is critical in testicular pathology, disturbing the SC barrier function and the germ cell differentiation. Our study is important for comprehending the effects of beta coronavirus infections on testis function in order to develop treatments that could prevent virus-mediated male infertility.
Language	English
Publishing date	2024-02-13
Publishing country	Ireland
Document type	Journal Article
ZDB-ID	424421-7
ISSN	1872-7603 ; 0165-0378
ISSN (online)	1872-7603
ISSN	0165-0378
DOI	10.1016/j.jri.2024.104214
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Article ; Online: First report the Syntermes molestus Burm. (1839) (Isoptera: Termitidae) causing severe mechanical damage to Solanum tuberosum roots.

Silva, G H / Godoi-Junior, M A / Martins, J V S / Ribeiro, L S / Ribeiro, J P O / Araújo, F F / Cruz, J M F L / Cunha, F F / Ribeiro, W S

Brazilian journal of biology = Revista brasleira de biologia

2023 Volume 83, Page(s) e269325

MeSH term(s)	Animals ; Isoptera ; Solanum tuberosum
Language	English
Publishing date	2023-03-20
Publishing country	Brazil
Document type	Journal Article
ZDB-ID	2036257-2
ISSN	1678-4375 ; 1519-6984
ISSN (online)	1678-4375
ISSN	1519-6984
DOI	10.1590/1519-6984.269325
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Article: Use of in-filled trenches to screen ground vibration due to impact pile driving: experimental and numerical study

Jayawardana, Pubudu / Achuhan, R / De Silva, G.H.M.J. Subashi / Thambiratnam, D.P

Heliyon. 2018 Aug., v. 4, no. 8

2018

Abstract: Vibration generated by pile driving can cause discomfort to occupants of nearby buildings and disturb the activities carried out in the buildings. The transmitted vibration will depend on both the source and the transmitting medium (soil), while the ... ...

Abstract	Vibration generated by pile driving can cause discomfort to occupants of nearby buildings and disturb the activities carried out in the buildings. The transmitted vibration will depend on both the source and the transmitting medium (soil), while the acceptable levels of vibration will depend on the receiver characteristics. Existing structures in which some sensitive processes are ongoing such as hospitals and laboratories can easily be affected due to the received vibration. Introducing a trench into the path of wave propagation has become one of the solutions. There is however little experimental data available on the effects of trenches to screen such ground borne vibration, especially that caused by pile driving. This paper describes a series of experiments conducted to investigate the characteristics of impact pile induced vibrations and the effect of coal bottom ash filled trenches to screen this vibration. In addition to experimental testing, numerical simulations are also carried out using validated model to examine the effects of in-fill material, impact load, soil characteristics and distance from the source to the trench on the vibration screening ability. The results of the field experiments and the numerical study are analysed and interpreted to provide guidelines for future research and design.
Keywords	bottom ash ; coal ; impact load ; model validation ; vibration
Language	English
Dates of publication	2018-08
Publishing place	Elsevier Ltd
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2018.e00726
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Article: Use of in-filled trenches to screen ground vibration due to impact pile driving: experimental and numerical study.

Jayawardana, Pubudu / Achuhan, R / De Silva, G H M J Subashi / Thambiratnam, D P

Heliyon

2018 Volume 4, Issue 8, Page(s) e00726

Abstract	Vibration generated by pile driving can cause discomfort to occupants of nearby buildings and disturb the activities carried out in the buildings. The transmitted vibration will depend on both the source and the transmitting medium (soil), while the acceptable levels of vibration will depend on the receiver characteristics. Existing structures in which some sensitive processes are ongoing such as hospitals and laboratories can easily be affected due to the received vibration. Introducing a trench into the path of wave propagation has become one of the solutions. There is however little experimental data available on the effects of trenches to screen such ground borne vibration, especially that caused by pile driving. This paper describes a series of experiments conducted to investigate the characteristics of impact pile induced vibrations and the effect of coal bottom ash filled trenches to screen this vibration. In addition to experimental testing, numerical simulations are also carried out using validated model to examine the effects of in-fill material, impact load, soil characteristics and distance from the source to the trench on the vibration screening ability. The results of the field experiments and the numerical study are analysed and interpreted to provide guidelines for future research and design.
Language	English
Publishing date	2018-08-07
Publishing country	England
Document type	Journal Article
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2018.e00726
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Article: Study of constructed wetlands effluent disinfected with ozone.

Miranda, N D / Oliveira, E L / Silva, G H R

Water science and technology : a journal of the International Association on Water Pollution Research

2014 Volume 70, Issue 1, Page(s) 108–113

Abstract: The purpose of this research was to study the disinfection of sanitary effluent from constructed wetlands, evaluating the oxidation of organic matter, the formation of formaldehyde, as well as the efficiency of total coliforms and Escherichia coli ... ...

Abstract	The purpose of this research was to study the disinfection of sanitary effluent from constructed wetlands, evaluating the oxidation of organic matter, the formation of formaldehyde, as well as the efficiency of total coliforms and Escherichia coli inactivation. A constant flow of ozone was applied to the batch system in 5 and 10 mg.O3 L(-1) doses with contact times of 5 and 10 min. This study revealed that the average values of formaldehyde formation ranged between 259.00 and 379.00 μg L(-1), which means that the values are within World Health Organization recommended values. The total coliforms and E. coli showed complete inactivation in almost all tests. The dose of ozone 5 mg.O3 L(-1) and contact time of 5 min were sufficient for a significant reduction of the concentration levels of pathogens in constructed wetlands effluent with similar characteristics, thus allowing for its agricultural reuse.
MeSH term(s)	Biological Oxygen Demand Analysis ; Color ; Disinfectants/chemistry ; Disinfection ; Environmental Monitoring/methods ; Escherichia coli/metabolism ; Formaldehyde/chemistry ; Hydrogen-Ion Concentration ; Nephelometry and Turbidimetry ; Oxygen/chemistry ; Ozone/chemistry ; Water Microbiology ; Water Pollutants, Chemical/analysis ; Water Purification/methods ; Wetlands
Chemical Substances	Disinfectants ; Water Pollutants, Chemical ; Formaldehyde (1HG84L3525) ; Ozone (66H7ZZK23N) ; Oxygen (S88TT14065)
Language	English
Publishing date	2014
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	764273-8
ISSN	1996-9732 ; 0273-1223
ISSN (online)	1996-9732
ISSN	0273-1223
DOI	10.2166/wst.2014.202
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Article ; Online: Physiologic and metabolic effects of exogenous kojic acid and tyrosol, chemicals produced by endophytic fungus, on wheat seeds germination.

Macedo, W R / Silva, G H / Santos, M F C / Oliveira, A P S / Souza, D S

Natural product research

2017 Volume 32, Issue 22, Page(s) 2692–2696

Abstract: Antioxidant compounds have the ability to scavenge the reactive oxygen species in an attempt to minimise damage in seeds during the germination. This study aimed to evaluate the physiological and metabolic process of two well-established antioxidant ... ...

Abstract	Antioxidant compounds have the ability to scavenge the reactive oxygen species in an attempt to minimise damage in seeds during the germination. This study aimed to evaluate the physiological and metabolic process of two well-established antioxidant compounds: kojic acid and hydroxyphenyl ethanol (tyrosol), at increasing concentrations, on wheat seeds. The use of different concentrations of tyrosol or kojic acid not showed any interference on seed germination rate. However, we observed isolated effect of antioxidants and their concentrations to: germination speed index, shoot length and electrolyte leakage; and significant interaction between the factors to: seedling total length, seedling fresh matter and α-amylase activity. Our results suggest that the use of antioxidant molecules can be applied on seed treatments for protection against damage oxidative stress and improve seed metabolism.
MeSH term(s)	Antioxidants/pharmacology ; Cell Membrane/drug effects ; Endophytes/chemistry ; Fungi/chemistry ; Germination/drug effects ; Oxidative Stress ; Phenylethyl Alcohol/analogs & derivatives ; Phenylethyl Alcohol/pharmacology ; Pyrones/pharmacology ; Reactive Oxygen Species/metabolism ; Seedlings/drug effects ; Seeds/drug effects ; Triticum/drug effects
Chemical Substances	Antioxidants ; Pyrones ; Reactive Oxygen Species ; 4-hydroxyphenylethanol (1AK4MU3SNX) ; kojic acid (6K23F1TT52) ; Phenylethyl Alcohol (ML9LGA7468)
Language	English
Publishing date	2017-09-07
Publishing country	England
Document type	Journal Article
ZDB-ID	2185747-7
ISSN	1478-6427 ; 1478-6419
ISSN (online)	1478-6427
ISSN	1478-6419
DOI	10.1080/14786419.2017.1374261
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Article ; Online: Metal fractionation in sludge from sewage UASB treatment.

Braga, A F M / Zaiat, M / Silva, G H R / Fermoso, F G

Journal of environmental management

2017 Volume 193, Page(s) 98–107

Abstract: This study evaluates the trace metal composition and fractionation in sludge samples from anaerobic sewage treatment plants from six cities in Brazil. Ten metals were evaluated: Ni, Mn, Se, Co, Fe, Zn, K, Cu, Pb and Cr. Specific methanogenic activity of ... ...

Abstract	This study evaluates the trace metal composition and fractionation in sludge samples from anaerobic sewage treatment plants from six cities in Brazil. Ten metals were evaluated: Ni, Mn, Se, Co, Fe, Zn, K, Cu, Pb and Cr. Specific methanogenic activity of the sludge was also evaluated using acetic acid as the substrate. Among the essential trace metals for anaerobic digestion, Se, Zn, Ni and Fe were found at a high percentage in the organic matter/sulfide fraction in all sludge samples analyzed. These metals are less available for microorganisms than other metals, i.e., Co and K, which were present in significant amounts in the exchangeable and carbonate fractions. Cu is not typically reported as an essential metal but as a possible inhibitor. One of the samples showed a total Cu concentration close to the maximal amount allowed for reuse as fertilizer. Among the non-essential trace metals, Pb was present in all sludge samples at similar low concentrations and was primarily present in the residual fraction, demonstrating very low availability. Cr was found at low concentrations in all sludge samples, except for the sludge from STP5; interestingly, this sludge presented the lowest specific methanogenic activity, indicating possible Cr toxicity.
MeSH term(s)	Brazil ; Chemical Fractionation ; Metals, Heavy/chemistry ; Sewage/chemistry
Chemical Substances	Metals, Heavy ; Sewage
Language	English
Publishing date	2017-05-15
Publishing country	England
Document type	Journal Article
ZDB-ID	184882-3
ISSN	1095-8630 ; 0301-4797
ISSN (online)	1095-8630
ISSN	0301-4797
DOI	10.1016/j.jenvman.2017.01.070
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Article ; Online: Prophylactic Bifidobacterium adolescentis ATTCC 15703 supplementation reduces partially allergic airway disease in Balb/c but not in C57BL/6 mice.

Casaro, M C / Crisma, A R / Vieira, A T / Silva, G H M / Mendes, E / Ribeiro, W R / Martins, F S / Ferreira, C M

Beneficial microbes

2018 Volume 9, Issue 3, Page(s) 465–476

Abstract: Allergic asthma is a chronic disease mainly characterised by eosinophil inflammation and airway remodelling. Many studies have shown that the gut microbiota of allergic individuals differs from that of non-allergic individuals. Although high levels of ... ...

Abstract	Allergic asthma is a chronic disease mainly characterised by eosinophil inflammation and airway remodelling. Many studies have shown that the gut microbiota of allergic individuals differs from that of non-allergic individuals. Although high levels of bifidobacteria have been associated with healthy persons, Bifidobacterium adolescentis ATCC 15703, a gut bacteria, has been associated with allergic individuals in some clinical studies. The relationship between B. adolescentis ATCC 15703 and asthma or allergies has not been well elucidated, and its effect may be dependent on the host's genetic profile or disease state. To elucidate this question, we evaluated the role of preventive B. adolescentis ATCC 15703 treatment on experimental allergic airway inflammation in two genetically different mouse strains, Balb/c and C57BL/6 (B6). Balb/c mice display a greater predisposition to develop allergic responses than B6 mice. Oral preventive treatment with B. adolescentis ATCC 15703 modulated experimental allergic airway inflammation, specifically in Balb/c mice, which showed decreased levels of eosinophils in the airway. B6 mice did not exhibit any significant alterations in eosinophils but showed an increased influx of total leukocytes and neutrophils into the airway. The mechanism underlying the beneficial effects of these bacteria in experimental allergic mice may involve products of bacteria metabolism, as dead bacteria did not mimic the ability of live B. adolescentis ATCC 15703 to attenuate the influx of eosinophils into the airway. To conclude, preventive oral B. adolescentis ATCC 15703 treatment can attenuate the major characteristic of allergic asthma, eosinophil airway influx, in Balb/c but not B6 mice. These results suggest that oral treatment with this specific live bacterial strain may have therapeutic potential for the treatment of allergic airway disease, although its effect is mouse-strain-dependent.
MeSH term(s)	Administration, Oral ; Animals ; Asthma/prevention & control ; Bifidobacterium adolescentis/growth & development ; Disease Models, Animal ; Eosinophils/immunology ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Probiotics/administration & dosage ; Respiratory System/pathology ; Treatment Outcome
Language	English
Publishing date	2018-04-10
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2561259-1
ISSN	1876-2891 ; 1876-2883
ISSN (online)	1876-2891
ISSN	1876-2883
DOI	10.3920/BM2017.0073
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