Environmental Remediation Consultants (United States)

Scientific publication activity is a key indicator of the development of the research community and reflects both the productivity and impact of scientists. This study aims to analyze the current state of publication activity among Kazakhstani researchers, identify existing challenges, and propose recommendations to enhance the effectiveness and quality of scientific publications. The research carries significant scientific value by integrating bibliometric data and international benchmarks (UNESCO, World Bank indicators) to provide a comprehensive evaluation of Kazakhstan’s research output. The practical importance is highlighted by the examination of issues such as the prevalence of lowquality journals and the mismatch between the growing number of researchers and the limited domestic publication venues. The findings underscore the dual role of publication activity: it increases the visibility and credibility of research while also serving as a basis for science policy and funding decisions. However, low citation rates and the persistence of outdated approaches in some institutions impede progress. The value of this study lies in its evidencebased recommendations to improve publication practices, including strengthening research quality, expanding international collaboration, and reforming institutional requirements. The practical outcomes of the study – such as specific measures to support journals and researchers – can guide policymakers and academic institutions in boosting the global impact of Kazakhstani science

This study explored the role of consonants and vowels in auditory word perception in Hebrew, using an auditory-auditory priming procedure. A common finding is the greater importance for consonants than vowels in spoken word processing, henceforth the C-bias. What underlies the C-bias is a controversial issue between the "acquired functional hypothesis" and the "initial-bias hypothesis." The former predicts a different pattern of asymmetry among languages, while the latter claims that the C-bias exists in all languages. Hebrew is interesting because it allows the exploration of whether language-specific morphological properties can modulate consonant/vowel asymmetry. This opportunity stems from its unique complex Semitic morphological structure that was found to have a central role in lexical access. To evaluate the consonant/vowel asymmetry in Hebrew in relation to previously studied languages, recognition of morphologically complex Hebrew words was compared with recognition of foreign Hebrew words that do not have the typical Hebrew morphological complex structure, hereafter simple words. The results showed a significantly stronger C-bias for morphologically complex words than for simple words. We suggest that this within-variation supports the acquired functional hypothesis, so that even within one language different patterns of consonant/vowel asymmetry are revealed depending on the internal morphological structure of the word. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

This paper investigates grid characteristics of a bluff body stabilized turbulent premixed flame using the SPACE computational platform that utilizes a dual-mesh paradigm. The dual-mesh infrastructure leverages the CREATE-AV framework and uses a near-body unstructured solver paired with an overset off-body Cartesian solver. The bluff body flow conditions are based on the well-studied Volvo burner. Simulations are performed on this configuration at three different grid resolutions (2 mm, 1 mm, and 0.5 mm) as measured by the off-body Cartesian grid size. A laminar closure assumption is applied to gain insights into the grid convergence characteristics for this type of flame. For a qualitative comparison, instantaneous 2D contour plots of temperature, velocity and vorticity are compared for the different grids. For quantitative comparisons, simulation results for state space statistics, and the enstrophy budgets are compared. Qualitative results show with grid refinement that finer scale structures are obtained, indicating that results are not converged. State space results show similar variety in the chemical composition on the 1.0mm and 0.5mm grids, while the 2.0mm grid shows less variety and higher maximum temperatures. Analysis of the enstrophy budget indicates that the baroclinic and the dilatation terms dominate reaching approximately similar magnitudes on the 1.0mm and 0.5mm grids.

Hydraulic fracturing is the process of injecting large amounts of water under high pressure into a bedrock formation to increase oil and/or gas flow. To reduce use of freshwater resources, new techniques for the treatment of produced oilfield wastewater have been explored. One important concern is removing bacteria particularly sulfate‐reducing and iron‐oxidizing bacteria as these can contribute to costly degradation of product quality and biocorrosion of metal infrastructure. Therefore, identification and quantification of bacteria present after remediation is important to determine efficiency of the treatment and quality of the water. Matrix‐assisted laser desorption time‐of‐flight mass spectrometry (MALDI‐TOF MS) is a more efficient method of identifying microbes as opposed to other conventional identification methods, which have proven to be more time consuming and costly. In this work, MALDI‐TOF MS was used to identify microorganisms and assess the changes in microbiome diversity present in produced water (PW) before, during, and after treatment through various disinfection techniques. The raw PWs displayed unique microbial profiles that fluctuated throughout treatment with the five different modalities. Most of the microorganisms identified are commonly found in the environment such as Pseudomonas, Aeromonas, and Bacillus. UV treatment was the most effective disinfection modality (28.5% decrease in total CFUs/mL).Support or Funding InformationChallenger Water SolutionsCollaborative Laboratories for Environmental Analysis and RemediationInform EnvironmentalShimadzuThis abstract is from the Experimental Biology 2019 Meeting. There is no full text article associated with this abstract published in The FASEB Journal.

A parametric study of annular spark gaps, pressures, and spark discharges in flowing oxygen gas was performed with a Champion spark exciter. The range of the pressure-distance product for the experiment is from approximately 50 torr-cm to 2500 torr-cm. Measurements of breakdown voltage qualitatively trend with Paschen's curve. Spark duration remained constant until the pressure-distance product exceeded 200 torr-cm, and then steadily increased. The mean spark energy increases linearly with the pressure-distance on a log-log plot indicating that a definite power relationship exists. The distribution of sparks at low energies and low pressures is not Gaussian and has no dominant peaks. Moderate and high spark energies are bimodal, with the dominant mode near 80 mJ. As pressure increases, dominant and secondary modes approach the same probability.

In this work, a direct Z-scheme Cs2O–Bi2O3–ZnO heterostructure without any electron mediator is fabricated by a simple solution combustion route.