cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonreduction via meiotic restitution and pollen heterogeneity may explain residual male fertility in triploid marine halophyte Limonium algarvense (Plumbaginaceae)
Creators: name: Conceição, Sofia I. R.
name: Róis, Ana Sofia
name: Caperta, Ana D.
Publisher: name: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics
Year: 2019

description: The cosmopolitan halophylic genus Limonium (Plumbaginaceae) presents high cytogenetic interest because of the natural occurrence of diploid and polyploid variants. Natural triploids are very rare in nature but common in this genus, including the widespread triploid Limonium algarvense found in the Iberian Peninsula and in Morocco. This study describes male sporogenesis and gametogenesis, pollen formation and germination, and seed production in triploid L. algarvense and diploid Limonium ovalifolium using various cytological approaches. The diploid species presented regular meiosis. The triploid species was defective in male meiosis due to unpaired chromosomes, trivalent and tetravalent pairing, unbalanced chromosome segregation in meiosis I, and meiotic restitution in both meiosis I and II. These results may be explained by indeterminate and broad first meiotic restitution. Dyads and restitution nuclei at meiosis I were the most frequent meiotic products in the triploid species. Cytomixis was observed in both species, and callose deposition did not differ among them. In the diploid species, regular, tricolpate pollen grains, which germinated in vitro were found. Contrastingly, the triploid species produced heterogeneous pollen in morphology and size, with moderate to no viability that poorly germinated in vitro. We conclude that even if most triploids male gametes are non-functional, they seem to generate small numbers of viable gametes via nonreduction of chromosomes. Flow cytometric seed screening demonstrated that the diploid species presented a diploid progeny whereas triploids only showed triploid progenies. In the triploids low pollen fertility coupled with viable seed production may assure their persistence in natural populations.
description: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics, V. 72 N. 3 (2019)
Three different structural lead(II) polymers constructed from newly designed chlorophenyl-imidazole dicarboxylate ligands
Creators: name: Yue, Zhi-Fang
name: Chen, Zhen-Na
name: Zhong, Yuan-Hao
name: Li, Gang
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Plant Biology
subject: FOS: Biological sciences
subject: Biological Sciences
subject: Chemistry
subject: Biotechnology
subject: Molecular Biology
subject: Physics
subject: Biochemistry
subject: Biophysics

description: A 1-D coordination polymer, {[Pb(o-ClPhH2IDC)2]·H2O}n (o-ClPhH3IDC = 2-(2-chlorophenyl)-1H-imidazole-4,5-dicarboxylic acid) (1), a 2-D coordination polymer, [Pb3(p-ClPhIDC)2(H2O)]n (p-ClPhH3IDC = 2-(4-chlorophenyl)-1H-imidazole-4,5-dicarboxylic acid) (2), and a 3-D polymer, [Pb(p-ClPhH2IDC)2]n (3), have been obtained solvothermally and structurally characterized by elemental analyses, IR, and single-crystal X-ray diffraction. Although they were prepared with similar ligands and Pb2+, polymers 1–3 show distinct structures. The X-ray powder diffraction and thermal properties of the polymers have been investigated. The influence of the reaction conditions to the final products and coordination of the organic ligands are discussed.
Three different structural lead(II) polymers constructed from newly designed chlorophenyl-imidazole dicarboxylate ligands
Creators: name: Yue, Zhi-Fang
name: Chen, Zhen-Na
name: Zhong, Yuan-Hao
name: Li, Gang
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Plant Biology
subject: FOS: Biological sciences
subject: Biological Sciences
subject: Chemistry
subject: Biotechnology
subject: Molecular Biology
subject: Physics
subject: Biochemistry
subject: Biophysics

description: A 1D coordination polymer, {[Pb(o-ClPhH2IDC)2]·H2O}n (o-ClPhH3IDC = 2-(2-chlorophenyl)-1H-imidazole-4,5-dicarboxylic acid) (1), a 2D coordination polymer, [Pb3(p-ClPhIDC)2(H2O)]n (p-ClPhH3IDC = 2-(4-chlorophenyl)-1H-imidazole-4,5-dicarboxylic acid) (2), and a 3D polymer, [Pb(p-ClPhH2IDC)2]n (3), have been obtained solvothermally and structurally characterized by elemental analyses, IR and single-crystal X-ray diffraction. Although they were prepared with similar ligands and Pb2+, polymers 1-3 show distinct structures. The XRPD and thermal properties of the polymers have been investigated. The influence of the reaction conditions to the final products and coordination of the organic ligands are discussed.
Floral architecture, breeding system, seed biology and chromosomal studies in endangered Himalayan Angelica glauca Edgew. (Apiaceae)
Creators: name: Gautam, Kamini
name: Raina, Ravinder
Publisher: name: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics
Year: 2019

description: Endangered Angelica glauca an important medicinal plant of temperate Himalaya is valued for its roots which are used to treat several diseases besides food flavouring. Reproductive biology studies conducted in this species for the first time have revealed i). presence of umbels of different orders with only bisexual flowers ii). occurrence of sterile seeds (without embryo) apart from fertile ones iii). seed set in only early blooming umbels (primary and lateral-I) iv). 2n=22 chromosomes besides presence of chromosomes in a group at metaphase and anaphase-I and cytomixis in some pollen mother cells and v). extreme protoandry and cross pollination behavior (upto 95%) of the species. These observations have implications for developing any conservation plan for the species.
description: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics, V. 72 N. 3 (2019)
Cytotoxic and genotoxic activity of Plantago major L. extracts
Creators: name: Parić, Adisa
name: Mesic, Aner
name: Eminović, Izet
name: Ždralović, Amira
Publisher: name: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics
Year: 2019

description: Plantago major L. is a perennial, wild plant that belongs to the Plantaginaceae family, and is used as a good indicator in the assessment of destructive anthropogenic impact on the environment. The aim of the present study was to evaluate cyto/genotoxic effects of methanol extracts of Plantago major, collected from two locations (Tetovo and Smetovi), using Allium cepa test. We demonstrated that the highest concentration of P. major extracts from both locations reduced the mitotic index, while the lowest increased mitotic index value comparing to the positive control. As for genotoxic effects of extract from Tetovo, all concentrations increased the frequency of sticky chromosomes and chromosome missegregations in comparison with both controls, and frequency of multipolar anaphases when compared to the negative control. Higher number of cells with vagrants in comparison with positive control was detected after the treatment with 0.005 and 0.02 mg/ml concentrations. P. major extract from Smetovi (0.005 and 0.01 mg/ml) induced an increase in the number of vagrants as compared to the positive control, and frequency of sticky chromosomes when compared to both controls (0.01 mg/ml). Exposure to extract (0.005 and 0.02 mg/ml) caused increased number of multipolar anaphases in comparison with negative control. Apoptosis were not detected for P. major extract from Smetovi, while its highest concentration (0.02 mg/ml) induced increase in the frequency of necrosis as compared to the positive control. Our results demonstrated that methanol extracts of P. major, collected from Tetovo and Smetovi, showed cyto/genotoxic effects on A. cepa meristem cells.
description: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics, V. 72 N. 3 (2019)
Supplementary methods from Sexual conflict and correlated evolution between male persistence and female resistance traits in the seed beetle Callosobruchus maculatus
Creators: name: Dougherty, Liam R.
name: Lieshout, Emile Van
name: McNamara, Kathryn B.
name: Moschilla, Joe A.
name: Arnqvist, Göran
name: Simmons, Leigh W.
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Detailed description of methods for X-Ray micro-CT preparation, scanning and analysis
Characterization of intraspecific hybrid in Clitoria ternatea (L.) using morpho-physiological, cytogenetic, metabolic and molecular markers
Creators: name: Naik, Aparupa
name: Patel, Amiya K.
name: Mishra, Sujit K.
name: Nag, Atul
name: Panigrahi, Jogeswar
Publisher: name: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics
Year: 2019

description: Clitoria ternatea (L.) is a medicinal plant possessed with bioactive molecules such as taraxerol, delphinidin, kaempoferol and quercetin etc. For the development genotype with higher content of these bioactive molecules, marker-assisted breeding is one of the best strategies and it initiates with the development of F1 hybrids. Thus, an intraspecific F1 hybrid was raised involving two contrasting genotypes of C. ternatea acc. CtB3-SL1 (Blue flowered) and C. ternatea acc. CtW2-BL1 (white flowered). The hybridity of the F1 plant was confirmed by assessing the phenotypic traits, such as colour of the petal, pod shape and seed coat colour, 100 seed weight, and the content of taraxerol and delphinidin. The pollen mother cells in the F1 hybrid showed eight bivalents with preponderance of ring bivalents and 8I:8I segregation at metaphase-I and Anaphase-I, respectively. SDS-PAGE seed albumin and globulin detected three pollen parent-specific polypeptides (Mw 31.62, 22.38 and 18.81KDa), and were inherited to F1 hybrids, which evidenced the hybridity of putative F1 plants. Further, DNA marker analysis also showed the inheritance of 11 RAPD, six SCoT and one ISSR markers to putative F1 plant, which affirmed the hybrid nature of the F1 plant. This study also evidenced that combined use of morphophysiological, cytogenetic, protein and DNA marker analyses could be effective for precise characterization of intra-specific hybrids in C. ternatea. These F1 hybrid and its derived future progenies could also be used for mapping of QTLs or genes contributing higher accumulation of taraxerol and delphinidin in different plant parts.
description: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics, V. 72 N. 3 (2019)
Electronic Supplementary Material including Study Map, Network statistics, and frequency distributions from Social associations between California Sea lions influence the use of a novel foraging ground
Creators: name: Schakner, Zachary A.
name: Petelle, Matthew B.
name: Tennis, Mathew J.
name: Leeuw, Bjorn K. Van Der
name: Stansell, Robert T.
name: Blumstein, Daniel T.
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: This file includes supplementary results including Study Map, Network statistics, and frequency distributions
Electronic supplementary material (ESM) for the paper Exact semi-separation of variables in waveguides with nonplanar boundaries
Creators: name: G. A. Athanassoulis
name: Ch. E. Papoutsellis
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: 10299 Applied Mathematics not elsewhere classified
subject: FOS: Mathematics
subject: 19999 Mathematical Sciences not elsewhere classified
subject: 20301 Acoustics and Acoustical Devices; Waves
subject: FOS: Physical sciences

description: Series expansions of unknown fields Φ=∑φnZn in elongated waveguides are commonly used in acoustics, optics, geophysics, water waves and other applications, in the context of coupled-mode theories (CMTs). The transverse functions Zn are determined by solving local Sturm–Liouville problems (reference waveguides). In most cases, the boundary conditions assigned to Zn cannot be compatible with the physical boundary conditions of Φ, leading to slowly convergent series, and rendering CMTs mild-slope approximations. In the present paper, the heuristic approach introduced in (Athanassoulis & Belibassakis 1999 J. Fluid Mech. 389, 275–301) is generalized and justified. It is proved that an appropriately enhanced series expansion becomes an exact, rapidly convergent representation of the field Φ, valid for any smooth, nonplanar boundaries and any smooth enough Φ. This series expansion can be differentiated termwise everywhere in the domain, including the boundaries, implementing an exact semi-separation of variables for non-separable domains. The efficiency of the method is illustrated by solving a boundary value problem for the Laplace equation, and computing the corresponding Dirichlet-to-Neumann operator, involved in Hamiltonian equations for nonlinear water waves. The present method provides accurate results with only a few modes for quite general domains. Extensions to general waveguides are also discussed.
Role of humic acid against salt-induced cytotoxicity in Hordeum vulgare L.
Creators: name: Tabur, Selma
name: Yurtlu, Merve Dündar
name: Özmen, Serkan
Publisher: name: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics
Year: 2019

description: The effect of humic acid, which is an replace by a biostimulant on mitotic activity and chromosome behaviors in meristem cells of Hordeum vulgare L. germinated under different salt concentrations were investigated. In the parallel to increasing salt concentrations, mitotic index partly decreased and observed the higher number of chromosomal abnormalities as compared to control. Also, it was determined that the mitotic index of seeds pretreated with only humic acid increased by 30% according to control and by 42% of mitotic aberrations. Whereas, humic acid along with salt significantly inhibited to mitotic index with parallel to increasing salt concentrations. Moreover, the frequency of chromosomal aberrations in seeds germinated in humic acid and salty medium significantly decreased according to its own control. Humic acid revealed to a successful performance in ameliorating of the detrimental effect of salinity in the all concentrations studied. Humic acid application at 0.35 M salinity displayed perfectly successful by reaching to the same abnormality percentage of control.
description: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics, V. 72 N. 3 (2019)
Karyotype analysis of a natural Lycoris double-flowered hybrid
Creators: name: Wang, Jin-Xia
name: Cao, Yuan-Jin
name: Han, Yu-Chun
name: Zhou, Shou-Biao
name: Liu, Kun
Publisher: name: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics
Year: 2019

description: A putative natural double-flowered hybrid in Lycoris Herb. was found on Mt. Zhangjiajie in Hunan, China. The putative natural hybrid had a chromosome number of 2n = 18 and was karyotypically formulated as 2n = 4m + 6st + 5t + 3T. The karyotype of the putative natural hybrid was classified as 2B type according to the degree of asymmetry and Stebbins’ criteria. According to the gross morphology, phenology and karyotype of the putative natural hybrid, it was suggested that this taxon was probably from the natural hybridization between L. aurea and L. radiata.
description: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics, V. 72 N. 2 (2019)
Evidence of increase in woody vegetation in a river corridor, Northwest England, 1984–2007
Creators: name: Hooke, Janet
name: Chen, Hongyan
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Based on observations on rivers in England over a 30-year period, it was hypothesised that the extent of woody vegetation in riparian areas has increased in many locations. Methods to map and measure changes in vegetation cover from aerial photographs were developed and tested on a 5 km reach of the River Dane in Northwest England. Riparian vegetation was divided into seven classes, and these were mapped from aerial photographs of four dates, 1984, 1996, 2001 and 2007. The results indicate an increase from 9% woody vegetation cover in the river corridor in 1984 to 32% cover in 2007, with a 40-fold increase in areas of mature woody vegetation. The results have implications for river processes, because of effects on bank erosion and sediment supply, and for land management policies, with grazing control hypothesised to be a major cause of the changes.
Effects of zinc on pollen gamete penetration to pistils in some apple crosses assessed by fluorescence microscopy
Creators: name: Sharafi, Yavar
Publisher: name: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics
Year: 2019

description: Zinc is classically the second abundant moveable metal in plants after iron and represented in all enzyme classes. Zinc generally contributes in the biosynthesis of IAA and GA3 phytohormones which play the major role in fertilization and fruit set. Zinc deficiency leads to reduction in leaf and shoot size, photosynthesis and finally decreases fruit set. Foliar Zinc spray was shown to be efficient and fast for improving Zinc deficiency in fruit trees. In this research the effects of Zinc solution by (0, 3000 and 5000 mg. L-1) were studied on pollen penetration to the pistil and ovary in the four apple cultivars crosses which included “Golden Delicious”, “Red Delicious”, “Gala” and “Fuji”. Spraying was done on the shoots two weeks before blooming in the spring. Pollen penetration was studied using fluorescent microscopy technique 72 and 120 hours after field pollination. Results revealed that the effects of Zinc, crosses and their interaction were significant on pollen germination on the stigma and tube penetration into the primary, middle and beginning of the ovaries and the highest pollen germination on the stigma (43.5%) was observed in the cross (♀Golden Delicious × Gala♂), in 3000 mg. L-1 of Zinc 120 hours after pollination and highest pollen tube penetration into the ovary (12/88%) was observed in this cross, respectively. Finally, it was shown that fluorescence microscopy is an accurate technique for nutrition assay in pollination and fruit set. The foliar application of Zinc increased pollen germination and pollen tube growth in all of the crosses.
description: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics, V. 72 N. 3 (2019)
title: 01_1068
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
title: 02_1772
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: LaMOP

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Description of a new species of Lytorhynchus (Squamata: Colubridae) from Iran
Creators: name: Farhang Torki
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Evolutionary Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology
subject: Computational Biology

description: A new species of the genus Lytorhynchus is described from the Kabir-Koh Mountains, southwestern Iran. Known from a single specimen, it is readily distinguished from its congeners by the form of the rostrum, the number of scales, and the colouration and colour pattern. http://www.zoobank.org/urn:lsid:zoobank.org:pub:66BC88DF-C092-4F7D-8ECD2860EDAC17B1
Taxonomy and distribution of sand boas of the genus Eryx Daudin, 1803 (Serpentes: Erycidae) in Iran
Creators: name: Zarrintab, Mohammad
name: Milto, Konstantin D.
name: Naeimeh Eskandarzadeh
name: Zangi, Bahman
name: Jahan, Mohammad
name: Haji Gholi Kami
name: Nasrullah Rastegar-Pouyani
name: Eskandar Rastegar-Pouyani
name: Rajabizadeh, Mahdi
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: We review the distribution, morphology and taxonomic status of Eryx elegans, E. jaculus, E. miliaris, E. tataricus and E. johnii in Iran and examine four metric and 10 meristic characters of 94 specimens from different parts of the country. There are significant morphological differences between Eryx tataricus, E. jaculus and E. elegans, mainly in snout vent length, tail length, and number of ventrals, subcaudals and dorsal scales. Eryx jayakari and E. johnii can easily be distinguished based on their morphological traits and limited distribution in Iran. The occurrence of E. miliaris in Iran was not confirmed. The Iranian populations of Eryx jaculus are assigned to the subspecies E. j. turcicus. E. jaculus specimens from southwestern Iran had higher ventral scales than other populations, so evaluating their taxonomic status needs genetic studies in the future. A distribution map and a revised key to the genus Eryx in Iran are presented.
Assessment of cytotoxicity and mutagenicity of insecticide Demond EC25 in Allium cepa and Ames Test
Creators: name: Özkara, Arzu
Publisher: name: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics
Year: 2019

description: The mutagenicity and cytotoxicity of Demond EC25, a synthetic pyrethroid insecticide, was assessed using two standard genotoxicity assays of the Salmonella typhimurium mutagenicity assay (Ames test) and Allium cepa test. Cytogenetic effects of Demond EC25 were evaluated in the root meristem cells of Allium cepa. The test concentrations of compounds were selected by determining EC50 of the Allium root growth and onion seeds were exposed to Demond EC25 (50, 100, and 200 ppm) for 24, 48, and 72 hours. The concentrations Demond EC25 was compared with the value for the negative control using Dunnet-t test, 2 sided. The results indicated that mitotic index was clearly decreased with increasing the concentration of Demond EC25 in each treatment group as compared to the controls. Demond EC25 was tested for mutagenicity in bacterial reversion assay systems with two strains (TA98 and TA100) of Salmonella typhimurium absence and presence of S9 fraction. The doses of Demond EC25 were 50, 100, 200, 400, 800 µg/plate and test materials were dissolved in DMSO. Our results show that Demond EC25 was found to be mutagenic in 800 and 400 μg/plate doses of TA98 in the without S9 mix and 800 μg/plate in the with S9 mix. In TA100, Demond EC25 was found to be mutagenic only 800 μg/plate doses without S9 mix. The other doses of this insecticide was not found to be mutagenic in both test strains.
description: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics, V. 72 N. 2 (2019)
Simple Fabrication of Glutathione-Responsive PEGylated Micellar Nanocarriers for Dual Drugs Delivery
Creators: name: Zhang, Haixia
name: Zhao, Shuling
name: Wang, Dongdong
name: Zhang, Kelin
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Cancer
Biological Sciences
Chemistry
Biotechnology
Pharmacology
Cell Biology
Engineering
Biochemistry

description: The authors report a feasible simple method to fabricate two kinds of micellar nanocarriers (MPEG-SS-CPT/DOX) with polyethylene glycol (PEG) based on the self-assembly of glutathione (GSH)-responsive amphiphilic PEGylated polymers (MPEG-SS-CPT) in free doxorubicin (DOX) solution, which could carry two anticancer drugs of camptothecin (CPT) and DOX toward cancer cells together. In in vitro release studies, the micelles of MPEG-SS-CPT/DOX could undergo the triggered disassembly to release CPT and DOX under GSH stimulus much faster than without GSH. Furthermore, the MPEG-SS-CPT nanocarriers could release CPT with no change of its original structure after degradation. From the experiments of loading and release of drugs, the cell viability assay, cellular uptake, and flow cytometry studies, it was found that the fibrous micelles modified by PEG with a molecular weight of 350 had greater potential in the field of drug delivery than the other with a molecular weight of 1900.
Predicting first-order evaporation rate constant alpha (α) from small spills of organic solvents in a controlled environment
Creators: name: Abattan, Spéro Franck
name: Lavoué, Jérôme
name: Hallé, Stéphane
name: Bahloul, Ali
name: Drolet, Daniel
name: Debia, Maximilien
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Exposures to vapors generated by small spills of organic solvents are common in the occupational hygiene practice. In these scenarios, contaminant mass release is exponentially decreasing, driven by an evaporation rate constant alpha (α). Knowing α is fundamental for adequately modeling peak concentrations and/or short-term exposures that occur and for achieving efficient occupational risk analysis and management. The purpose of this study was to measure alpha experimentally using a gravimetric approach in a controlled environment during solvent evaporation tests designed to simulate small spills of solvents. The effects of several factors on α were evaluated. Equations based on regression models derived from the experimental data were proposed for predicting α. Predictions were externally validated against experimental data. A total of 183 tests was performed. Data analyses found that alpha (α) values increased with vapor pressure, spill surface area-to-spill volume ratio, and air speed across the spill. Larger α were associated with petri dish containers compared to watch glasses. Three regression models were created for predicting α. They had four variables in common, namely vapor pressure, molecular weight, air speed above the liquid, and surface tension of the liquid. The fifth variable was either spill volume, spill surface area, or spill surface area-to-spill volume ratio. The R2 of the regression models were equal to 0.98. External validation showed mean relative errors of −32.9, −32.0, and −25.5%, respectively, with associated standard deviations of the relative errors of 17.7, 33.3, and 26.0%, respectively, and associated R2 of 0.92, 0.65, and 0.87, respectively. The proposed equations can be used for estimating α in exposure scenarios similar to those evaluated in this study. Moreover, these models constitute a step further in the improvement of knowledge on estimating evaporation rates for small spills of organic solvents.
Evaluation of the cytotoxic and genotoxic potential of some heavy metals by use of Allium test
Creators: name: Sarac, Ioan
name: Bonciu, Elena
name: Butnariu, Monica
name: Petrescu, Irina
name: Madosa, Emilian
Publisher: name: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics
Year: 2019

description: The present study aimed to evaluate the cytogenetic effects induced by heavy metals nickel (Ni) and lead (Pb) to crop plants, using the Allium sativum (garlic) as a test plant. For this purpose, were used solutions of nickel nitrate - Ni(NO3)2 - and lead nitrate - Pb(NO3)2 - at concentrations of 50, 150 and 450 ppm for 72 hours, along with an untreated control variant immersed in plain water. The biological material was immersed from the beginning in the tested solutions. The results obtained showed a strong inhibitory effect of these heavy metals on the process of rhizogenesis, as well as a significant mitodepresive effect in the meristematic cells, both phenomena being correlated with increasing concentration of the tested solutions. At the same time, several types of chromosomal aberrations (c-mitosis, vagrants, star-anaphase, star-telophase, fragments, clumping, stickiness, bridges) have been recorded in all treatment variants. The presence of these chromosomal aberrations in all treatment variants indicates the aneugenic effects of nickel nitrate and lead nitrate in the meristematic cells of A. sativum. The results suggest the ecotoxicity potential of nickel and lead on plants even at low concentrations and confirm the suitability of A. sativum as a test plant for assessing the cytotoxicity and genotoxicity of heavy metals to plants.
description: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics, V. 72 N. 2 (2019)
[Programm: Berliner Well]
Creators: name: Indeterminado
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: Literatura argentina
"Casa tomada"

description: Anuncio original del programa Berliner Welles, serie "Kritik und Polemik", de la radio Berliner Rundfunk (DDR) sobre "Das besetzte Haus"("Casa tomada") de Julio Cortázar, "Giovannis Zimmer"("Giovanni’s Room") de James Baldwin, y "Die kinder von Sánchez"("The Children of Sánchez: Autobiography of a Mexican family") de Oscar Lewis.
description: Notas: Sello "Für den Autor" ("Para el Autor") en la parte inferior izquierda de la primera página.
description: Source: Num.Ref. : JC-CAR-07.018b
description: Source: Localización del archivo: Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Occurrence and risk assessment of organophosphorus pesticide residues in Chinese tea
Creators: name: Chen, Hongping
name: Hao, Zhenxia
name: Wang, Qinghua
name: Jiang, Ying
name: Pan, Rong
name: Wang, Chen
name: Liu, Xin
name: Lu, Chengyin
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Biochemistry
subject: Space Science
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Plant Biology
subject: FOS: Biological sciences

description: Tea is the second widely consumed beverage next to water. Tea drinking is one of the important pathways for human exposure of organonphosphorus pesticide. Consequently, incidence of organonphosphorus pesticide residues and risk assessment should be clear. In this study, the level of organonphosphorus pesticide residues in 810 Chinese teas manufactured between 2010–2013 was investigated using gas chromatography coupled with tandem mass spectrometry and a flame photometric detector. Incidence of organonphosphorus pesticide residues occurred with a frequency of 29% and the average concentration of 93 μg kg−1. The residue levels varied from tea types, sale spots, and production area. Chlorpyrifos, isocarbophos, and triazophos were the only three organonphosphorus pesticides with detectable residues, and the detectable rates were 13.0%, 13.6%, and 17.4%, respectively. The corresponding average daily intake of chlorpyrifos, isocarbophos, and triazophos by tea drinking was 0.000083 μg kg−1 bw day−1, 0.0036 μg kg−1 bw day−1, and 0.0022 μg kg−1 bw day−1. These results showed that the total hazard quotient of organonphosphorus pesticide pesticides from tea drinking was less than 0.02 and that the tea-drinking originated organonphosphorus pesticide exposure had a little adverse health effect for human being.
Cytogenetic effects of Fulvic acid on Allium cepa L. root tip meristem cells
Creators: name: Aslantürk, Özlem Sultan
Publisher: name: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics
Year: 2019

description: AAVV
description: Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics, V. 72 N. 2 (2019)
Occurrence and Risk Assessment of Organophosphorus Pesticide Residues in Chinese Tea
Creators: name: Chen, Hongping
name: Hao, Zhenxia
name: Wang, Qinghua
name: Jiang, Ying
name: Pan, Rong
name: Wang, Chen
name: Liu, Xin
name: Lu, Chengyin
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Cancer
Developmental Biology
Biological Sciences
Chemistry
Earth and Environmental Sciences
Biotechnology
Pharmacology
Molecular Biology
Engineering
Biochemistry

description: ABSTRCTTea is the second widely consumed beverage next to water. Tea drinking is one of important pathways for human exposure of organonphosphorus pesticide. Consequently, incidence of organonphosphorus pesticide residues and risk assessment should be clear. In this study, the level of organonphosphorus pesticide residues in 810 Chinese teas manufactured between 2010–2013 was investigated using gas chromatography coupled with tandem mass spectrometry and flame photometric detector. Incidence of organonphosphorus pesticide residues occurred with a frequency of 29% and the average concentration of 93 μg kg−1. The residue levels varied from tea types, sale spots, and production area. Chlorpyrifos, isocarbophos, and triazophos were the only three organonphosphorus pesticides with detectable residues, and the detectable rates were 13.0%, 13.6%, and 17.4%, respectively. The corresponding average daily intake of chlorpyrifos, isocarbophos and triazophos by tea drinking was 0.000083 μg kg−1 bw day−1, 0.0036 μg kg−1 bw day−1 and 0.0022 μg kg−1 bw day−1. These results showed that the total hazard quotient of organonphosphorus pesticide pesticides from tea drinking was less than 0.02 and that the tea-drinking originated organonphosphorus pesticide exposure had a little adverse health effect for human being.
Pulmonary Artery Denervation for Treatment of Pulmonary Arterial Hypertension: Results From a Controlled Before and After Study
Creators: name: SciDoc Publishers International Journal Of Cardiology And Research (IJCRR)
name: SL, Chen
name: H, Zhang
name: DJ, Xie
name: FF, Zhang
name: L, Zhou
name: J, Zhang
name: MX, Chen
name: GW, Stone
Publisher: name: figshare
Year: 2017
Subjects: subject: 110201 Cardiology (incl. Cardiovascular Diseases)
subject: FOS: Clinical medicine

description: Background: Pulmonary arterial hypertension (PAH) is a severe disease. 6-minute walk distance (6MWD) is correlated with the prognosis of PAH patients. We previously reported the safety and efficacy of pulmonary artery denervation (PADN) for patients with idiopathic PAH (IPAH) who were unresponsive to target drugs. However, PADN has not been tested in a well-designed study for patients with IPAH/PAH or pulmonary hypertension (PH). Objectives: The present study aimed to analyze the difference in 6-minute walk distance (6MWD) at 6-month after PADN and standard pharmacotherapy. Methods: Between February 2013 and June 2014, a total of 28 patients with IPAH (n=11), PH from left heart disease (n=8), and 9 secondary PAH were included in this study. A wash-out consisting of 5 half-lives for target drugs was performed for all the patients. Next, medications were prescribed for a 6-month duration for the patients (Medication treatment). A second wash-out (5 half-lives) was completed for all the patients after the 6-month medication treatment. Finally, PADN was performed for these patients (PADN treatment), and an additional 6-month follow-up period was completed. The primary endpoint was the difference in the ∆6MWD (defined as value at 6-month minus baseline) between two treatments. Results: After 6-month treatment, there was significant difference in the ∆6MWD between PADN (65±85 m) and Medication (13±24 m) treatment (95% CI -21.34-3.49, p=0.002), coupling with the differences in the reduction of systolic pulmonary artery pressure (PAP, -13.75±14.1 mmHg vs. -0.46±3.47 mmHg, p<0.001), mean PAP (-7.86±6.10 mmHg vs. -0.14±2.48 mmHg, p<0.001), mean right atrial pressure (-2.53±3.75 mmHg vs. -0.21±2.62 mmHg, p=0.007), and pulmonary vessel resistance (-4.59±7.06 Woods unit vs. -0.17±2.56 Woods unit, p=0.001). PADN treatment was associated with less frequent 6-month PAH-related event (10.8%), compared to 42.9% in Medication treatment (p=0.005). Conclusion: The present study showed that PADN treatment was associated with significant improvement of 6MWD and less PAH-related event. Further study was required to show the benefit of PADN in reducing mortality in patients with IPAH and secondary PAH.
Occurrence and Risk Assessment of Organophosphorus Pesticide Residues in Chinese Tea
Creators: name: Chen, Hongping
name: Hao, Zhenxia
name: Wang, Qinghua
name: Jiang, Ying
name: Pan, Rong
name: Wang, Chen
name: Liu, Xin
name: Lu, Chengyin
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Cancer
Developmental Biology
Biological Sciences
Chemistry
Earth and Environmental Sciences
Biotechnology
Pharmacology
Molecular Biology
Engineering
Biochemistry

description: ABSTRACTTea is the second widely consumed beverage next to water. Tea drinking is one of the important pathways for human exposure of organonphosphorus pesticide. Consequently, incidence of organonphosphorus pesticide residues and risk assessment should be clear. In this study, the level of organonphosphorus pesticide residues in 810 Chinese teas manufactured between 2010–2013 was investigated using gas chromatography coupled with tandem mass spectrometry and a flame photometric detector. Incidence of organonphosphorus pesticide residues occurred with a frequency of 29% and the average concentration of 93 μg kg−1. The residue levels varied from tea types, sale spots, and production area. Chlorpyrifos, isocarbophos, and triazophos were the only three organonphosphorus pesticides with detectable residues, and the detectable rates were 13.0%, 13.6%, and 17.4%, respectively. The corresponding average daily intake of chlorpyrifos, isocarbophos, and triazophos by tea drinking was 0.000083 μg kg−1 bw day−1, 0.0036 μg kg−1 bw day−1, and 0.0022 μg kg−1 bw day−1. These results showed that the total hazard quotient of organonphosphorus pesticide pesticides from tea drinking was less than 0.02 and that the tea-drinking originated organonphosphorus pesticide exposure had a little adverse health effect for human being.
Identification of differentially methylated markers among cytogenetic risk groups of acute myeloid leukemia
Creators: name: Qu, Xiaoyu
name: Davison, Jerry
name: Du, Liping
name: Storer, Barry
name: L Stirewalt, Derek
name: Heimfeld, Shelly
name: Estey, Elihu
name: R Appelbaum, Frederick
name: Fang, Min
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Hematology
subject: Cancer
subject: Biological Sciences
subject: Earth and Environmental Sciences
subject: Molecular Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Cell Biology

description: Aberrant DNA methylation is known to occur in cancer, including hematological malignancies such as acute myeloid leukemia (AML). However, less is known about whether specific methylation profiles characterize specific subcategories of AML. We examined this issue by using comprehensive high-throughput array-based relative methylation analysis (CHARM) to compare methylation profiles among patients in different AML cytogenetic risk groups. We found distinct profiles in each group, with the high-risk group showing overall increased methylation compared with low- and mid-risk groups. The differentially methylated regions (DMRs) distinguishing cytogenetic risk groups of AML were enriched in the CpG island shores. Specific risk-group associated DMRs were located near genes previously known to play a role in AML or other malignancies, such as MN1, UHRF1, HOXB3, and HOXB4, as well as TRIM71, the function of which in cancer is not well characterized. These findings were verified by quantitative bisulfite pyrosequencing and by comparison with results available at the TCGA cancer genome browser. To explore the potential biological significance of the observed methylation changes, we correlated our findings with gene expression data available through the TCGA database. The results showed that decreased methylation at HOXB3 and HOXB4 was associated with increased gene expression of both HOXB genes specific to the mid-risk AML, while increased DNA methylation at DCC distinctive to the high-risk AML was associated with increased gene expression. Our results suggest that the differential impact of cytogenetic changes on AML prognosis may, in part, be mediated by changes in methylation.
Predicting first-order evaporation rate constant alpha (α) from small spills of organic solvents in a controlled environment
Creators: name: Abattan, Spéro Franck
name: Lavoué, Jérôme
name: Hallé, Stéphane
name: Bahloul, Ali
name: Drolet, Daniel
name: Debia, Maximilien
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Exposures to vapors generated by small spills of organic solvents are common in the occupational hygiene practice. In these scenarios, contaminant mass release is exponentially decreasing, driven by an evaporation rate constant alpha (α). Knowing α is fundamental for adequately modeling peak concentrations and/or short-term exposures that occur and for achieving efficient occupational risk analysis and management. The purpose of this study was to measure alpha experimentally using a gravimetric approach in a controlled environment during solvent evaporation tests designed to simulate small spills of solvents. Effects of several factors on α were evaluated. Equations based on regression models derived from the experimental data were proposed for predicting α. Predictions were externally validated against experimental data. A total of 183 tests was performed. Data analyses found that alpha (α) values increased with vapor pressure, spill surface area-to-spill volume ratio, and air speed across the spill. Larger α were associated with petri dish containers compared to watch glasses. Three regression models were created for predicting α. They had four variables in common, namely vapor pressure, molecular weight, air speed above the liquid, and surface tension of the liquid. The fifth variable was either spill volume, spill surface area or spill surface area-to-spill volume ratio. The R2 of the regression models were equal to 0.98. External validation showed mean relative errors of -32.9, -32.0 and -25.5%, respectively, with associated standard deviations of the relative errors of 17.7, 33.3 and 26.0%, respectively, and associated R2 of 0.92, 0.65 and 0.87, respectively. The proposed equations can be used for estimating α in exposure scenarios similar to those evaluated in this study. Moreover, these models constitute a step further in the improvement of knowledge on estimating evaporation rates for small spills of organic solvents.
Terramechanics and soil–wheel interactions for road vehicle applications
Creators: name: Tsitouridis, George
Publisher: name: Loughborough University
Year: 2020
Subjects: subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: The current research concerns the analysis and development of a soil-wheel interaction model intended for application in road vehicles, in order to support virtual vehicle development processes. As a first step, a review of the literature is conducted which reveals the absence of a reliable tyre model for off-road applications. In addition, it highlights two critical performance items for the soil-wheel interaction; tractive effort and rolling resistance. The rolling resistance is generated by soil compaction, horizontal soil displacement and tyre flexibility, while the tractive effort is generated by the soil shearing behaviour at the soil-wheel interface. Existing models for soil compaction (i.e. pressure-sinkage) are initially evaluated for their accuracy and applicability using literature data, but their performance is unsatisfactory. In addition, a large experimental campaign is conducted using two soil types and various experimental processes such as pressure-sinkage on flat and curved plates, shear tests, rolling wheel tests. [Continues.]