The Distribution between the Dissolved and the Particulate Forms of 49 Metals across the Tigris River, Baghdad, Iraq by Samera Hussein Hamad, James Jay Schauer, Martin Merrill Shafer, Esam Abed Al-Raheem, Hyder Satar

“…Dissolved phases dominated the physical speciation of many metals (e.g., As, Mo, and Pt) in the Tigris River, while Al, Fe, Pb, Th, and Ti were exhibiting high particulate fractions, with a trend of particle partition coefficients of [Ti(40) > Th(35) > Fe(15) > Al(13) > Pb(4.5)] * 106 L/kg. …”
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Microevolutionary differentiation of cereal tetraploid species by formation of recombinant genomes by N. I. Dubovets, Ye. A. Sycheva

“…Experimen tal data suggest that newly developed tetraploid forms interbreed easily forming a single hybrid zone, where permanent redistribution of genetic material of differential genomes and further range expansion of genotypic variability available to selection take place during alternation of generations whereby such a zone becomes a poten tial centre of speciation. Subsequent adaptive radiation of hybrid material in an ecologically separated environment occurs by selection of forms with different variants of the recombinant genome in various ecological niches.…”
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Antifungal Susceptibility and Biofilm Production of Candida spp. Isolated from Clinical Samples by Munmun B. Marak, Biranthabail Dhanashree

“…Objective. The study aims to speciate clinical Candida isolates and detect their biofilm-forming ability and antifungal resistance. …”
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Ab Initio Molecular Dynamics Simulations and Vibrational Frequency Calculations of Species in Liquid-Liquid Phase Separated MgSO4 Solution at 543 K by Mengzi Zhou, Xiancai Lu, Xiandong Liu, Yingchun Zhang, Xiaoyu Zhang, Kai Wang

“…Ab initio molecular dynamics simulations (AIMD) and autocorrelation functions for frequency calculation have been performed to disclose the speciation. The results show that more Mg2+ ions surrounding a SO42- anion lead to higher wavenumber of Raman peaks, which indicates the formation of complicate clusters with ion associations similar to kieserite. …”
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Physical and chemical processes driven by natural iron minerals in aquatic environments by Yuanyuan Chen, Na Huang, Yingying Li, Yin Lu, Yilan Jiang, Zeng Zhou, Dawei Wang

“…In aquatic environments, natural iron minerals are a prevalent form of iron, which alter substance speciation through adsorption and redox reactions. Their abiotic migration and transformation processes are pivotal for maintaining aquatic ecosystem stability, particularly in nitrogen and organic carbon dynamics. …”
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Genetic diversity of the earthworm Eisenia nordenskioldi (Lumbricidae, Annelida) by S. V. Shekhovtsov, D. I. Berman, E. V. Golovanova, S. E. Peltek

“…This high diversity makes this species a promising model for studying earthworm speciation and evolution. In this study, we review all available information on the genetic and ecological diversity of E. nordenskioldi, including our published and unpublished data, as well as studies of other authors. …”
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Genomic Variability among Field Isolates and Laboratory-Adapted Strains of Leptospira borgpetersenii Serovar Hardjo by Alejandro Llanes, Carlos Mario Restrepo, Pablo Riesgo-Ferreiro, Sreekumari Rajeev

“…These results show that changes in regulatory mechanisms, previously suggested to be critical during Leptospira speciation, may occur in L. borgpetersenii. In addition, the bioinformatics methodology used in this study for variant calling can be useful to other groups working with nonmodel prokaryotic organisms such as Leptospira species.…”
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Human lineage mutations regulate RNA-protein binding of conserved genes NTRK2 and ITPR1 involved in human evolution by Min Zhao, Weichen Song, Shunying Yu, Wenxiang Cai, Guan Ning Lin

“…Among these genes, NTRK2 and ITPR1 had the most aggregated evidence of functional importance, suggesting their essential roles in cognition and bipedalism.Conclusions Our findings suggest that a small subset of human-specific mutations have contributed to human speciation through impacts on post-transcriptional modification of critical brain-related genes.…”
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Changes in Vertical Stratification of Neotropical Nymphalid Butterflies at Forest Edges Are Not Directly Caused by Light and Temperature Conditions by Brian K. Oye, Ryan I. Hill

“…Like other arthropod assemblages, neotropical fruit-feeding butterfly communities show strong vertical stratification within forests, with some recent work showing its potential role in speciation. At forest edges, species considered to be forest canopy specialists have been observed descending to the forest understory, with the similarity in light conditions between the canopy and understory strata at edges hypothesized to be responsible for this phenomenon. …”
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Pollution Characteristics and Key Reactive Species of Volatile Organic Compounds in Beijing-Tianjin-Hebei Area, China by Yanan Guan, Yihao Zhang, Yisen Zhang, Xiaoli Wang, Jing Han, Wenbo Song, Li’an Hou, Erhong Duan

“…In this study, the hourly mixing ratios of 61 ambient VOC species were monitored from 2018 till 2019 in 10 cities in the Beijing-Tianjin-Hebei (BTH) area of China, and the VOC distributions, speciation and photochemistry were also examined. The highest mixing ratios were found in the south, viz., Langfang (LF), Baoding (BD), Handan (HD) and Shijiazhuang (SJZ), and the lowest ones, in the north, viz., Chengde (CD) and Zhangjiakou (ZJK). …”
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Relationship between the Optical Properties and Chemical Composition of Urban Aerosol Particles in Lithuania by Julija Pauraite, Kristina Plauškaitė, Vadimas Dudoitis, Vidmantas Ulevicius

“…Investigation was performed in May-June 2017 using an aerosol chemical speciation monitor (ACSM), a 7-wavelength Aethalometer and a 3-wavelength integrating Nephelometer. …”
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Pollution Characteristics of Sb, As, Hg, Pb, Cd, and Zn in Soils from Different Zones of Xikuangshan Antimony Mine by Saijun Zhou, Andrew Hursthouse, Tengshu Chen

“…There are great differences in the speciation content of different elements in different sampling zones. …”
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Comparative Genomic Hybridization (CGH) in New World Monkeys (Primates) Reveals the Distribution of Repetitive Sequences in Cebinae and Callitrichinae by Vanessa Milioto, Vincenzo Arizza, Aiti Vizzini, Polina L. Perelman, Melody E. Roelke-Parker, Francesca Dumas

“…It has been hypothesized that repeats are species-specific and their conservation across closely related species are also common; their role in the genome has been extensively studied even though its role in speciation is not well studied and understood. The CGH shows bright signals with balanced and imbalanced DNA involving different genome regions: such as predominantly repetitive DNA at centromeric positions, and interstitial distribution with extended blocks. …”
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pH Effect on Heavy Metal Release from a Polluted Sediment by Yanhao Zhang, Haohan Zhang, Zhibin Zhang, Chengying Liu, Cuizhen Sun, Wen Zhang, Taha Marhaba

“…The distribution and speciation of heavy metals in the sediments after leaching test were analyzed by Tessier sequential extraction. …”
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Rainfall and PM Removal on Tree Leaves: A Study of Santiago, Chile’s Native Species by Margarita Préndez, Karina Corada, Ignacio Navarrete, Javier Vera, Zilera Wyss

“…However, further research is needed on metal speciation in TPM and its foliar uptake by plants. This study provides some insights into the complex interactions between trees leaves, TPM deposition, and rainfall.…”
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Preliminary species diversity and community phylogenetics of wood-inhabiting basidiomycetous fungi in the Dabie Mountains, Central China reveal unexpected richness by Xiang-Yang Liu, Shi-Liang Liu, Hao-Wen Wei, Xue-Wei Wang, Jia Yu, Shan Shen, Li-Wei Zhou

“…The Dabie Mountains, at the junction of Henan, Hubei, and Anhui Provinces, Central China, provide an ideal climate and favorable niches for the speciation and diversification of various forms of life including fungi. …”
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Evaluating the Performance of a Diffusive Gradient in Thin Film Embedded with Montmorillonite for the Determination of Labile Cd, Pb, Mn, and Zn in Natural River Water by Hong Lien Nguyen, Anh Tuan Phung, Trung Kien Tran, Trung Hai Huynh, Bich Huong La

“…In comparison with the data obtained from anodic stripping voltammetry (ASV), a traditional technique for the determination of non-in situ speciation of trace metals, labile metal concentrations measured by DGT-MMT were in similar ranges. …”
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Assessment of the Contribution of Local and Regional Biomass Burning on PM2.5 in New York/New Jersey Metropolitan Area by Subraham Singh, Glen Johnson, David W. DuBois, Ilias G. Kavouras

“…Abstract The sources of fine particulate matter (PM2.5, particles with diameter < 2.5 µm) in four monitoring sites in the New York/New Jersey metropolitan statistical area from 2007 to 2017 were apportioned by positive matrix factorization (PMF) of chemical speciation data. Biomass burning, secondary inorganic (i.e., ammonium sulfate and nitrate) and primary traffic exhausts were the predominant PM2.5 sources. …”
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Characterization of Clinical Isolates of Enterococci with Special Reference to Glycopeptide Susceptibility at a Tertiary Care Center of Eastern Nepal by Aasish Karna, Ratna Baral, Basudha Khanal

“…Their identification and speciation were done according to standard microbiological guidelines. …”
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Molecular phylogenetics of the Ophiocordyceps sinensis-species complex lineage (Ascomycota, Hypocreales), with the discovery of new species and predictions of species distribution by Yongdong Dai, Siqi Chen, Yuanbing Wang, Yao Wang, Zhuliang Yang, Hong Yu

“…Clarification of the species diversity of Ophiocordyceps sinensis and its relatives could expand the traditional medicinal resources and provide insights into the speciation and adaptation. The study is prompted by the discovery of a new species, O. megala, described here from a biodiversity hotspot in the Hengduan Mountains, China. …”
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