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Article ; Online: Analysis of the qualitative evolution of groundwater in the Abouabou area in the Port-Bouët municipality (Abidjan, Côte d’Ivoire)

Koffi Harmand Konan / Innocent Kouassi Kouame / Amidou Dao / Dabissi Noufe / Jean Thierry Koffi Koffi / Bamory Kamagate

Heliyon, Vol 6, Iss 10, Pp e05268- (2020)

2020

Abstract: The study aimed to analyze the seasonal qualitative evolution of the Quaternary groundwater in the Abouabou area in order to see the capacity of this water to be used as a water supply by the populations. In-situ measurements (temperature, electrical ... ...

Abstract	The study aimed to analyze the seasonal qualitative evolution of the Quaternary groundwater in the Abouabou area in order to see the capacity of this water to be used as a water supply by the populations. In-situ measurements (temperature, electrical conductivity, dissolved oxygen, turbidity and pH) and chemical parameter analyses (NH4+, Ca2+, Mg2+, K+, Na+, NO3-, NO2-, PO43-, SO42-, Cl− and HCO3-) were performed on the 24 samples collected during the four (4) seasons of the year. The use of Kruskal-Wallis and ANOVA tests has allowed the monitoring of seasonal variations in hydro-chemical parameters in well and borehole water. Also, the Piper diagram permit to identify the main hydrochemical facies according to the seasons. Finally, the Kohonen Self Organizing Maps (SOM) method was applied to physico-chemical parameters in order to highlight the spatial distribution of groundwater quality in the Abouabou area. The results show that, based on the physico-chemical parameters analysed, the groundwater is of good quality due to meeting WHO standards for drinking water consumption during all seasons of the year. Significant seasonal variations were recorded in the values of the parameters like turbidity, pH and Cl− for well water and turbidity, PO43-, NO3-, NH4+, K+, Cl− for borehole water. The hydrochemical facies shows a seasonal variation. Analysis of Abouabou's water reveals the variation of its hydrochemical facies. Thus, bicarbonate, calcium and magnesium facies during the long dry and rainy seasons move towards the chlorine, calcium and magnesium facies during the short dry and rainy seasons. Four water groups have been identified using SOM method, including heterogeneous groups composed mainly of borehole water (I and III) or of well water (II and IV). Borehole and well water acquire most of their mineralization by the infiltration of surface elements. Drinking water from boreholes is of good quality.
Keywords	Environmental science ; Geochemistry ; Geology ; Hydrology ; Wells ; Boreholes ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
Subject code	550
Language	English
Publishing date	2020-10-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Analysis of the qualitative evolution of groundwater in the Abouabou area in the Port-Bouët municipality (Abidjan, Côte d’Ivoire)

Konan, Koffi Harmand / Kouame, Innocent Kouassi / Dao, Amidou / Noufe, Dabissi / Koffi, Jean Thierry Koffi / Kamagate, Bamory

Heliyon. 2020 Oct., v. 6, no. 10

2020

Abstract	The study aimed to analyze the seasonal qualitative evolution of the Quaternary groundwater in the Abouabou area in order to see the capacity of this water to be used as a water supply by the populations. In-situ measurements (temperature, electrical conductivity, dissolved oxygen, turbidity and pH) and chemical parameter analyses (NH₄⁺, Ca²⁺, Mg²⁺, K⁺, Na⁺, NO₃⁻, NO₂⁻, PO₄³⁻, SO₄²⁻, Cl⁻ and HCO₃⁻) were performed on the 24 samples collected during the four (4) seasons of the year. The use of Kruskal-Wallis and ANOVA tests has allowed the monitoring of seasonal variations in hydro-chemical parameters in well and borehole water. Also, the Piper diagram permit to identify the main hydrochemical facies according to the seasons. Finally, the Kohonen Self Organizing Maps (SOM) method was applied to physico-chemical parameters in order to highlight the spatial distribution of groundwater quality in the Abouabou area. The results show that, based on the physico-chemical parameters analysed, the groundwater is of good quality due to meeting WHO standards for drinking water consumption during all seasons of the year. Significant seasonal variations were recorded in the values of the parameters like turbidity, pH and Cl⁻ for well water and turbidity, PO₄³⁻, NO₃⁻, NH₄⁺, K⁺, Cl⁻ for borehole water. The hydrochemical facies shows a seasonal variation. Analysis of Abouabou's water reveals the variation of its hydrochemical facies. Thus, bicarbonate, calcium and magnesium facies during the long dry and rainy seasons move towards the chlorine, calcium and magnesium facies during the short dry and rainy seasons. Four water groups have been identified using SOM method, including heterogeneous groups composed mainly of borehole water (I and III) or of well water (II and IV). Borehole and well water acquire most of their mineralization by the infiltration of surface elements. Drinking water from boreholes is of good quality.
Keywords	bicarbonates ; calcium ; chlorine ; electrical conductivity ; evolution ; hydrochemistry ; magnesium ; mineralization ; oxygen ; pH ; seasonal variation ; temperature ; turbidity ; water quality ; water supply ; well water ; Cote d'Ivoire
Language	English
Dates of publication	2020-10
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.2020.e05268
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Calculations of population differentiation based on GST and D: forget GST but not all of statistics!

Gerlach, Gabriele / Jueterbock, Alexander / Kraemer, Philipp / Deppermann, Jana / Harmand, Peter

Molecular ecology

2010 Volume 19, Issue 18, Page(s) 3845–3852

Abstract: ... show genetic differentiation, and Jost suggested calculating D-values instead. Theoretical mathematical ... differentiation correctly; in contrast, D-values do reflect the genetic differentiation indicating that data based ... We provide information about the impact of different sample sizes on D-values in relation to number ...

Abstract	G(ST)-values and its relatives (F(ST)) belong to the most used parameters to define genetic differences between populations. Originally, they were developed for allozymes with very low number of alleles. Using highly polymorphic microsatellite markers it was often puzzling that G(ST)-values were very low but statistically significant. In their papers, Jost (2008) and Hedrick (2005) explained that G(ST)-values do not show genetic differentiation, and Jost suggested calculating D-values instead. Theoretical mathematical considerations are often difficult to follow; therefore, we chose an applied approach comparing two artificial populations with different number of alleles at equal frequencies and known genetic divergence. Our results show that even for more than one allele per population G(ST)-values do not calculate population differentiation correctly; in contrast, D-values do reflect the genetic differentiation indicating that data based on G(ST)-values need to be re-evaluated. In our approach, statistical evaluations remained similar. We provide information about the impact of different sample sizes on D-values in relation to number of alleles and genetic divergence.
MeSH term(s)	Gene Frequency ; Genetic Variation ; Genetics, Population ; Models, Genetic ; Models, Statistical
Language	English
Publishing date	2010-09
Publishing country	England
Document type	Comment ; Comparative Study ; Journal Article
ZDB-ID	1126687-9
ISSN	1365-294X ; 0962-1083
ISSN (online)	1365-294X
ISSN	0962-1083
DOI	10.1111/j.1365-294X.2010.04784.x
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Article: Calculations of population differentiation based on GST and D: forget GST but not all of statistics

Gerlach, Gabriele / Jueterbock, Alexander / Kraemer, Philipp / Deppermann, Jana / Harmand, Peter

Molecular ecology. 2010 Sept., v. 19, no. 18

2010

Abstract: ... genetic differentiation, and Jost suggested calculating D-values instead. Theoretical mathematical ... differentiation correctly; in contrast, D-values do reflect the genetic differentiation indicating that data based ... We provide information about the impact of different sample sizes on D-values in relation to number ...

Abstract	GST-values and its relatives (FST) belong to the most used parameters to define genetic differences between populations. Originally, they were developed for allozymes with very low number of alleles. Using highly polymorphic microsatellite markers it was often puzzling that GST-values were very low but statistically significant. In their papers, Jost (2008) and Hedrick (2005) explained that GST-values do not show genetic differentiation, and Jost suggested calculating D-values instead. Theoretical mathematical considerations are often difficult to follow; therefore, we chose an applied approach comparing two artificial populations with different number of alleles at equal frequencies and known genetic divergence. Our results show that even for more than one allele per population GST-values do not calculate population differentiation correctly; in contrast, D-values do reflect the genetic differentiation indicating that data based on GST-values need to be re-evaluated. In our approach, statistical evaluations remained similar. We provide information about the impact of different sample sizes on D-values in relation to number of alleles and genetic divergence.
Keywords	population genetics ; genetic variation
Language	English
Dates of publication	2010-09
Size	p. 3845-3852.
Publisher	Blackwell Publishing Ltd
Publishing place	Oxford, UK
Document type	Article
ZDB-ID	1126687-9
ISSN	1365-294X ; 0962-1083
ISSN (online)	1365-294X
ISSN	0962-1083
DOI	10.1111/j.1365-294X.2010.04784.x
Database	NAL-Catalogue (AGRICOLA)

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Article: Consideration of Maintenance in Wine Fermentation Modeling.

Rapaport, Alain / David, Robert / Dochain, Denis / Harmand, Jérôme / Nidelet, Thibault

Foods (Basel, Switzerland)

2022 Volume 11, Issue 12

Abstract: We show that a simple model with a maintenance term can satisfactorily reproduce the simulations of several existing models of wine fermentation from the literature, as well as experimental data. The maintenance describes a consumption of the nitrogen ... ...

Abstract	We show that a simple model with a maintenance term can satisfactorily reproduce the simulations of several existing models of wine fermentation from the literature, as well as experimental data. The maintenance describes a consumption of the nitrogen that is not entirely converted into biomass. We show also that considering a maintenance term in the model is equivalent to writing a model with a variable yield that can be estimated from data.
Language	English
Publishing date	2022-06-08
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2704223-6
ISSN	2304-8158
ISSN	2304-8158
DOI	10.3390/foods11121682
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Single-shot X-ray absorption spectroscopy at X-ray free electron lasers.

Harmand, Marion / Cammarata, Marco / Chollet, Matthieu / Krygier, Andrew G / Lemke, Henrik T / Zhu, Diling

Scientific reports

2023 Volume 13, Issue 1, Page(s) 18203

Abstract: X-ray Absorption Spectroscopy (XAS) is a widely used X-ray diagnostic method for studying electronic and structural properties of matter. At first glance, the relatively narrow bandwidth and the highly fluctuating spectral structure of X-ray Free ... ...

Abstract	X-ray Absorption Spectroscopy (XAS) is a widely used X-ray diagnostic method for studying electronic and structural properties of matter. At first glance, the relatively narrow bandwidth and the highly fluctuating spectral structure of X-ray Free Electron Lasers (XFEL) sources seem to require accumulation over many shots to achieve high data quality. To date the best approach to implementing XAS at XFEL facilities has been using monochromators to scan the photon energy across the desired spectral range. While this is possible for easily reproducible samples such as liquids, it is incompatible with many important systems. Here, we demonstrate collection of single-shot XAS spectra over 10s of eV using an XFEL source, with error bars of only a few percent. We additionally show how to extend this technique over wider spectral ranges towards Extended X-ray Absorption Fine Structure measurements, by concatenating a few tens of single-shot measurements. Our results pave the way for future XAS studies at XFELs, in particular those in the femtosecond regime. This advance is envisioned to be especially important for many transient processes that can only be initiated at lower repetition rates, for difficult to reproduce excitation conditions, or for rare samples, such as those encountered in high-energy density physics.
Language	English
Publishing date	2023-10-24
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-023-44196-2
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Article ; Online: Converting an Anti-Mouse CD4 Monoclonal Antibody into an scFv Positron Emission Tomography Imaging Agent for Longitudinal Monitoring of CD4

Islam, Ashraful / Pishesha, Novalia / Harmand, Thibault J / Heston, Hailey / Woodham, Andrew W / Cheloha, Ross W / Bousbaine, Djenet / Rashidian, Mohammad / Ploegh, Hidde L

Journal of immunology (Baltimore, Md. : 1950)

2021 Volume 207, Issue 5, Page(s) 1468–1477

Abstract: Immuno-positron emission tomography (PET), a noninvasive imaging modality, can provide a dynamic approach for longitudinal assessment of cell populations of interest. Transformation of mAbs into single-chain variable fragment (scFv)-based PET imaging ... ...

Abstract	Immuno-positron emission tomography (PET), a noninvasive imaging modality, can provide a dynamic approach for longitudinal assessment of cell populations of interest. Transformation of mAbs into single-chain variable fragment (scFv)-based PET imaging agents would allow noninvasive tracking in vivo of a wide range of possible targets. We used sortase-mediated enzymatic labeling in combination with PEGylation to develop an anti-mouse CD4 scFv-based PET imaging agent constructed from an anti-mouse CD4 mAb. This anti-CD4 scFv can monitor the in vivo distribution of CD4
MeSH term(s)	Animals ; Antibodies, Monoclonal/metabolism ; CD4 Antigens/immunology ; CD4-Positive T-Lymphocytes/immunology ; Diagnostic Imaging ; Female ; Immunologic Memory ; Immunotherapy/methods ; Lymphocytes, Tumor-Infiltrating/immunology ; Melanoma/therapy ; Melanoma, Experimental ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Monitoring, Immunologic/methods ; Positron-Emission Tomography ; Single-Chain Antibodies/metabolism ; Skin Neoplasms/therapy
Chemical Substances	Antibodies, Monoclonal ; CD4 Antigens ; Single-Chain Antibodies
Language	English
Publishing date	2021-08-18
Publishing country	United States
Document type	Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
ZDB-ID	3056-9
ISSN	1550-6606 ; 0022-1767 ; 1048-3233 ; 1047-7381
ISSN (online)	1550-6606
ISSN	0022-1767 ; 1048-3233 ; 1047-7381
DOI	10.4049/jimmunol.2100274
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Article ; Online: Litterfall seasonal dynamics and leaf-litter turnover in cocoa agroforests established on past forest lands or savannah

Saj, S. / Nijmeijer, A. / Nieboukaho, J.D.E. / Lauri, P.E. / Harmand, J.M.

Agroforestry Systems

2021

Abstract: Nutrient cycling in cocoa agroforestry systems (cAFS) is complex and poorly understood. To better understand the mass flow of carbon and nutrients into the soil sub-system under various contexts we quantified the mass flow of litterfall, its composition ... ...

Abstract	Nutrient cycling in cocoa agroforestry systems (cAFS) is complex and poorly understood. To better understand the mass flow of carbon and nutrients into the soil sub-system under various contexts we quantified the mass flow of litterfall, its composition and seasonal variations in different agroforestry systems in Bokito (Central Cameroon). We studied litterfall dynamics and in situ leaf-litter cycling of cAFS established on past forest lands (F-cAFS) and savannah (S-cAFS). We also studied the decomposition of cocoa and associated tree leaf-litter in litterbags. Local secondary semi-deciduous forests were included as control. Annual litterfall in full-grown cAFS (> 15 years old) was high (9.4 Mg ha−1 y−1) and represented ca. 67% of litterfall in control forests. In full-grown cAFS, associated tree leaf-litter contributed to litterfall the most and ranged between 60 and 70% of the total amount recorded (6.3 Mg ha−1 y−1). The quantities and dynamics of the litter components monitored were similar in full-grown S- and F-cAFS. The microclimate was best buffered in forests and least buffered in young S-cAFS but could not be linked to leaf-litter decomposition. Forest leaf litterfall was higher and tended to cycle faster than total leaf-litter of cAFS, whose decomposition appeared limited by cocoa leaf-litter quality. Our study underlines (i) the critical contribution of associated trees to the nutrient cycle of agroecosystems established on poor soils and, (ii) the ability of farmers to channel associated tree communities towards similar functioning despite different past land-uses.
Keywords	agroforestry ; cocoa ; plant litter ; decomposition
Language	English
Publishing date	2021-04-06T05:27:26Z
Publisher	Springer
Publishing country	fr
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Medicinal Plants Traditionally Used in the Management of COVID-19 in Kurdistan Region of Iraq

Mahmoud D. Abdulrahman / Fattma Z. Mohammed / Saber W. Hamad / Harmand A. Hama / Abubakar A. Lema

ARO-The Scientific Journal of Koya University, Vol 10, Iss

2022 Volume 2

Abstract: Coronaviruses are infectious respiratory tract illnesses, but they can also affect the digestive tract and infect both humans and animals. The new coronavirus results in complicated health problems all over the world. The most urgent concern of all ... ...

Abstract	Coronaviruses are infectious respiratory tract illnesses, but they can also affect the digestive tract and infect both humans and animals. The new coronavirus results in complicated health problems all over the world. The most urgent concern of all researchers around the world has been the treatment of the virus. The following study aimed to use quantitative ethnobotany to help scientist in addressing the deadly virus. Expert sampling method was adopted with the aid of an in-depth interview guide. Thirty-nine respondents were interviewed. Eighty-one medicinal plant species from 35 families were documented. Males 25 (64.1%) constitute the greater percentage of the total respondents. Majority of the respondents had formal education. Eighty-one medicinal plant species from 35 families were documented. Leaves are the most utilized 25.8 followed by seed 17.7 and fruits 12.1%, respectively. Relative frequency of citation ranged from 0.5 to 0.9, whereas the FL value ranged from 0.4 to 0.85, revealing how effective the documented plant species are in the management of COVID-19 in the region. A greater amount of research into documented medicinal plants is warranted because of the high likelihood that they contain many active ingredients.
Keywords	Coronaviruses ; Expert sampling method ; Iraqi Kurdistan ; Medicinal plant ; Relative frequency of citation ; Agriculture ; S ; Technology ; T ; Science ; Q
Subject code	580
Language	English
Publishing date	2022-11-01T00:00:00Z
Publisher	Koya University
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Single-shot X-ray Absorption Spectroscopy at X-ray Free Electron Lasers

Harmand, M. / Cammarata, M. / Chollet, M. / Krygier, A. G / Lemke, H. T. / Zhu, D.

2020

Abstract: X-ray Absorption Spectroscopy (XAS) is a widely used X-ray diagnostic method. While synchrotrons have large communities of XAS users, its use on X-Ray Free Electron Lasers (XFEL) facilities has been rather limited. At a first glance, the relatively ... ...

Abstract	X-ray Absorption Spectroscopy (XAS) is a widely used X-ray diagnostic method. While synchrotrons have large communities of XAS users, its use on X-Ray Free Electron Lasers (XFEL) facilities has been rather limited. At a first glance, the relatively narrow bandwidth and the highly fluctuating spectral structure of XFEL sources seem to prevent high-quality XAS measurements without accumulating over many shots. Here, we demonstrate for the first time the collection of single-shot XAS spectra on an XFEL, with error bars of only a few percent, over tens of eV. We show how this technique can be extended over wider spectral ranges towards Extended X-ray Absorption Fine Structure (EXAFS) measurements, by concatenating a few tens of single-shot measurements. Such results open indisputable perspectives for future femtosecond time resolved XAS studies, especially for transient processes that can be initiated at low repetition rate. Comment: 11 pages, 5 figures
Keywords	Physics - Instrumentation and Detectors ; Condensed Matter - Materials Science
Subject code	520
Publishing date	2020-05-04
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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