Results 81 to 90 of about 21,618 (260)

Application of Protease-Hydrogen Peroxide Digestion Method in Forensic Diatom Examination

Fayixue Zazhi
ObjectiveTo propose a novel forensic diatom examination method, namely the protease-hydrogen peroxide （PHP） digestion method, and to explore its potential application in forensic practice.MethodsThe PHP digestion method was applied to process lung ...
GUO Wen-qing, CHEN Min, MA Ao, HUANG Ping, ZHANG Ji   +4 more
doaj   +1 more source

Late Holocene environmental history of Dojran, Macedonia: Investigating the interplay of imperial dynamics and climatic change

Journal of Quaternary Science, EarlyView.
ABSTRACT This study presents a high‐resolution, multi‐proxy reconstruction of environmental and land‐use change from Lake Dojran over historical times (last 2500 years), combining pollen, biomarkers, radiocarbon dating, Ottoman taxation records and other historical data.
Alessia Masi, Lucrezia Masci, Georgios C. Liakopoulos, Monica Bini, Alexander Francke, Ilaria Isola, Carlo Ricotta, Laura Sadori, Alexander Sarantis, Sławomir Sprawski, Jakub Sypiański, Irene Tunno, Cristiano Vignola, Bernd Wagner, Giovanni Zanchetta, Adam Izdebski   +15 more
wiley   +1 more source

Technical note: Nitric acid addition reduces residues and increases diatom-detection efficiency in the diatom testing of closed organs

Forensic Science International: Reports
We aimed to assess the ability of a revised diatom testing method, namely nitric acid addition (NAAdd), where nitric acid is added after the first digestion, to reduce residue content and maintain diatom-detection efficiency, in two experiments (1 and 2)
Shigeki Tsuneya, Makoto Nakajima, Suguru Torimitsu, Hirotaro Iwase, Yohsuke Makino   +4 more
doaj   +1 more source

Coherent Stokes Raman Scattering for Simultaneous Measurement of CO2 and CH4 Temperatures

Journal of Raman Spectroscopy, EarlyView.
A three‐beam hybrid fs/ps CSRS method is employed to excite the rovibrational transitions in the Fermi‐dyad of CO2$$ {}_2 $$ and the v2$$ {v}_2 $$ mode of CH4$$ {}_4 $$. Time‐domain spectroscopic models are developed to extract the fuel and flame temperature profiles from experimental CH4$$ {}_4 $$ and CO2$$ {}_2 $$ spectra in a diffusion flame ...
Alexander M. Warner, Robert P. Lucht, Rohan M. Gejji, Carson D. Slabaugh   +3 more
wiley   +1 more source

Qualitative Analysis of Biogas by Raman Spectroscopy: Effect of Pressure on Major Components

Journal of Raman Spectroscopy, EarlyView.
Raman spectra of major and selected minor biogas components were studied under pressures up to 100 bar. Pressure‐induced shifts and band broadening were quantified for methane, carbon dioxide, and nitrogen, while Raman spectra of ammonia and hydrogen sulfide are presented in the context of biogas quality monitoring.
Dominik Tománek, Matouš Kuneš, Tomáš Hlinčík   +2 more
wiley   +1 more source

Statistical filtering to aid in the sorting of phytoplankton: The effects of image library size and phytoplankton shape

Limnology and Oceanography: Methods, EarlyView.
Abstract The demand for efficient image sorting methods has increased due to technological advancements that enable more intensive phytoplankton monitoring. Both statistical and machine learning algorithms can misidentify algal taxa in taxonomically diverse samples, in which phytoplankton morphology and image traits can vary.
Christopher R. Farrow, Josef D. Ackerman
wiley   +1 more source

Recent Progress in Diatom Research in the Yangtze River Basin

Limnological Review
Diatoms have been widely used for aquatic environment assessment. However, the progress of diatom research is uneven in different regions of the world. This study gathered both Chinese and English articles on diatom research in the Yangtze River Basin in
Hui Liu, Xiangqun Wu, Xu Chen
doaj   +1 more source

A simplified two‐station approach for modeling metabolism in dam tailwaters subject to diel flow variation

Limnology and Oceanography: Methods, EarlyView.
Abstract Tailwaters are ubiquitous and highly managed ecosystems whose food webs often rely disproportionately on autochthonous energy. In situ continuous dissolved oxygen data are increasingly being used to estimate gross primary productivity and ecosystem respiration in rivers, but this approach is complicated in tailwaters, where upriver ...
Ian W. Bishop, Bridget R. Deemer, Theodore A. Kennedy, Robert A. Payn, Robert O. Hall Jr., Charles B. Yackulic   +5 more
wiley   +1 more source

EFFECTIVNESS OF PURE DIATOMACEUS EARTH AND DIFFERENT MIXTURES OF DIATOMACEUS EARTH WITH PYRETHRINS [PDF]

Poljoprivreda, 2011
This study shows results of laboratory experiments on stored soft white wheat infested with two stored pest species: rice weevil - Sitophilus oryzae (L.), and red flour beetle - Tribolium castaneum (Herbst), treated with different mixtures of Diatomaceus
Irma Kalinović, Zlatko Korunić, Vlatka Rozman, Anita Liška   +3 more
doaj  

Drivers of stability in plankton communities: dominance, asynchrony, and averaging effects across temporal, spatial and trophic scales

Oikos, EarlyView.
The origins of ecosystem stability have long intrigued ecologists. Recent theoretical advancements highlight three primary mechanisms driving stability: dominance, asynchrony and averaging. While plant community stability has been extensively studied, our understanding of marine community stability remains limited. Plankton, as key components of marine
Guido Occhipinti, Francesco Dattilo, Eva Álvarez, Cosimo Solidoro, Paolo Lazzari   +4 more
wiley   +1 more source