bluuebunny/crossref_metadata_2025_split huggingface dataset:
Some aspects of conditioning high-color river waters of the Far North
Authors: Рафф П.А. 
Published: June 2024

Рассматриваются некоторые аспекты кондиционирования воды реки Солзы на водоочистной станции г. Северодвинска с анализом качества природной воды за период 2020–2023 годов. Представлены результаты статистической обработки исходных данных по качеству речной воды. Рассматриваются особенности реагентной обработки речной воды с высоким содержанием органических веществ, состав которых изменяется в зависимости от сезона. На основании статистической обработки данных за период 2020–2024 годов по показателям цветности и перманганатной окисляемости определен диапазон изменения коэффициента цветности. В ходе исследований установлен оптимальный диапазон рН для получения минимальных значений концентрации остаточного алюминия в очищенной воде.
Some aspects of water conditioning of the Solza River at the water treatment plant in Severodvinsk are considered with an analysis of the quality of natural water for the period 2020–2023. The results of statistical processing of initial data on the river water quality are presented. The features of the chemical treatment of river water containing a high concentration of organic substances, and with the composition varying in dependence to the season, are considered. Based on statistical processing of the data for the 2020–2024 period in terms of color and permanganate index, the range of the color coefficient variation was determined. In the course of studies, the optimal pH range was established to provide for the minimum concentrations of residual aluminum in purified water.
Study of the imact of chemical plant wastewater on the adaptation of activated sludge at the municipal wastewater treatment facilities
Authors: Латыпова Т.В. , Зенцов В.Н. , Лапшакова И.В. , Наумов И.С. , Фролов Б.С. 
Published: June 2024

Рассмотрен вопрос влияния разбавленных стоков химического предприятия на биоценоз микроорганизмов активного ила городских очистных сооружений канализации. В исследованиях за основу были приняты сточные воды предприятия «Химволокно» г. Благовещенска с известными концентрациями загрязнений. Были проведены эксперименты на предмет влияния производственных сточных вод на биологическую очистку, а именно, в каких соотношениях возможно смешение этих стоков без оказания вредного воздействия на биоценоз микроорганизмов. Наблюдения за активным илом показывают, что при разбавлении 1:50 угнетение микроорганизмов при подаче стоков в данном соотношении происходит медленнее, чем при подаче стоков с разбавлением 1:10, 1:20, 1:30, 1:40. Такой сток может быть принят на очистные сооружения с постепенной длительной адаптацией к нему биоценоза.
The impact of diluted wastewater of a chemical plant on the biocenosis of microorganisms in activated sludge at the municipal wastewater treatment facilities is considered. In the course of studies, wastewater of Khimvolokno enterprise in Blagoveshchensk with known pollution concentrations was taken as a basis. Experiments were conducted to examine the impact of industrial wastewater on biological treatment, namely, in what proportions blending this wastewater with no harmful effect on the biocenosis of microorganisms is possible. Observations of the activated sludge show that at 1:50 dilution supplying wastewater with this ratio provides for slower inhibition of microorganisms than when supplying wastewater with a dilution of 1:10, 1:20, 1:30, 1:40. This wastewater can supplied to treatment facilities with gradual long-term adaptation of the biocenosis to it.
EDITORIAL
Authors: Comissão Editorial  
Published: June 2024

A International Gramsci Society/Br tem o prazer de anunciar aos seus colaboradores e leitores o seu volume 9, número 14. O número versa sobre os sentidos da obra de Gramsci, bem como sua tradução e interpretação em diferentes lugares e contextos, além de uma análise dentro do campo crítico e do marxismo.
O primeiro conjunto de contribuições contempla o relevante dossiê intitulado “Grupos de pesquisas e estudos gramscianos no Brasil”, organizado por Michelle Fernandes Lima, Marcos Francisco Martins, Anita Schlesener, Matheus Daltoé Assis e Maria Margarida Machado. Este dossiê contribui de maneira significativa no sentido de contextualizar a produção e contribuição dos grupos de pesquisa nacionais que se debruçam sobre o pensamento de Antonio Gramsci e suas diversas possibilidades criativas e analíticas.
A seção “Artigos” traz três importantes contribuições na linha de análise da educação e das lutas a ela relacionadas. O referencial gramsciano que compõe a linha de argumento dos textos é um ponto em comum.
Desejamos a todos(as) uma boa leitura!
Food Additive Mediated Biosynthesis of AgNPs with Antimicrobial Activity Against Hypermucoviscous Enterotoxigenic Foodborne Klebsiella pneumoniae
Authors: AlKhafaji Marwa H. , Mohsin Raghdan H. , Alshaikh Faqri Ayoob M. 
Published: June 2024

This study was aimed to adopt an ecofriendly method to synthesize nanoparticles with an effective antibacterial and anti-biofilm activity. A food origin hypermucoviscous Klebsiella pneumoniae was isolated from food samples and identified using biochemical tests and the Vitek system. A string test was depended on to identify hypermucoviscous isolates. Enterotoxicity of foodborne hypermucoviscous K. pneumoniae isolates was detected phenotypically using suckling mouse bioassay. Biofilm forming ability was tested for all the isolated bacteria using the Microtiter plate method and Congo Red Agar. A natural food additive Syzygium aromaticum (clove) aqueous extract was used for the biosynthesis of silver nanoparticles in optimized conditions. The biosynthesized clove-silver nanoparticles (Clove-AgNps) were characterized by several techniques, and their antimicrobial and antibiofilm activity was determined. The results of this study revealed that the isolation of 28 K. pneumoniae isolates were isolated from 200 food samples. String test results showed that 16/28 (57.14%) K. pneumoniae isolates were hypermucoviscous. Eleven of these isolates (68.75%) were enterotoxigenic. Using clove aqueous extract as a biological agent was successful in the biosynthesis of AgNPs with an average diameter of 14.12 nm as measured by AFM. The optimum biosynthesis conditions were: 1mM of AgNO3 concentration, pH 7, at 37 °C, and 24 hours. The minimum inhibitory concentration of the clove-AgNPs was detected as 62.5 µg.mL-1. Sub-inhibitory concentration of 31.25 µg.mL-1 of Clove-AgNPs resulted in: 91% decrease in the formed biofilm. It can be concluded that using Syzygium aromaticum is an effective ecofriendly method for AgNPs biosynthesis with excellent antibacterial and anti-biofilm activity against enterotoxigenic hypermucoviscous K. pneumoniae.
Análise do desempenho, estresse, resiliência, fatores de personalidade e atenção durante uma simulação de competição de tiro com arco
Authors: Fentenes da Silva Cardoso Bruna , Silva Giullio César Pereira Salustiano Mallen da , Rolim Lopes Silva Yuri , Santos Meireles Alex , De Souza Sodré Ravini , Moreira de Carvalho Monteiro Ana Beatriz , Ribeiro Nogueira da Gama Dirceu , Gomes de Souza Vale Rodrigo 
Published: June 2024

Introdução: O tiro com arco é um esporte caracterizado pela execução de padrões de movimentos estáveis, com o objetivo de disparar uma flecha com precisão em um alvo. Dessa forma compreender fatores físicos e psicológicos relacionados ao desempenho na modalidade se faz necessário.
Objetivo: Examinar as associações entre estresse, resiliência, fatores de personalidade, atenção (difusa e concentrada) e com desempenho no tiro com arco.
Métodos: Participaram nove praticantes de tiro com arco, de ambos os sexos, com média de idade de 38,22±16,40 anos, com no mínimo um ano e meio de prática na modalidade. Para a caracterização da amostra, foram analisadas: envergadura, tamanho da puxada, equilíbrio unipodal e frequência cardíaca. Durante a simulação de competição foram realizadas avaliações do desempenho, do estresse, da resiliência, dos fatores de personalidade e da atenção.
Resultados: Foi encontrado um aumento (p=0,008) da atenção concentrada do momento pré para o pós-simulação de competição de tiro com arco. Já na atenção difusa não foi encontrada diferença significativa. Houve correlações positivas entre envergadura e tamanho da puxada (rho=0,902; p= 0,001), tempo de prática do esporte e pontuação total (rho=0,786; p=0,012), pontos2 e pontos total (rho= 0,782; p=0,013). Já as correlações negativas foram entre extroversão e pontos2 (rho=-0,730; p=0,026) e entre resiliência e atenção concentrada pré-simulação (rho=-0,676; p=0,045).
Conclusão: Dadas às associações encontradas entre resiliência e atenção concentrada, extroversão e pontuação da segunda série, é possível concluir que fatores de personalidade podem afetar o desempenho final de participantes de uma competição simulada de tiro com arco.
Contaminación de masas de aguas superficiales por actividades hidrocarburíferas (TPH) en la serranía del Aguaragüe, zonas Cororoy y el Tucán (Bolivia)
Authors: Hoyos López Marcela Elizabeth , Mamani Alemán Julio César , Leigue Fernández María Alejandra , Alemán Castillo Roxana , Hoyos López Karen Daniela 
Published: June 2024

La Serranía Aguaragüe, situada en el departamento de Tarija, es una de las principales áreas petroleras de Bolivia, explotada desde los años 70’s, donde se han descubierto importantes reservas de gas natural y petróleo, sin embargo, la explotación petrolera en esta zona, ha sido objeto de controversias y conflictos, debido a su impacto ambiental y social. A pesar de los esfuerzos del gobierno boliviano para regular y controlar la explotación petrolera en la Serranía Aguaragüe, considerada un área protegida, la actividad sigue siendo objeto de debate y polémica, porque se pueden evidenciar emanaciones de rastros hidrocarburíferos en las fuentes de agua de esta serranía. El objetivo de este trabajo, es describir las características de concentración de TPH (Total Petroleum Hydrocarbons) en las masas de aguas superficiales de las quebradas Cororoy y El Tucán (zona Sanandita) y sus pozos, SAN9, SANX31 y SAN3, que están en la Serranía Aguaragüe. La metodología utilizada corresponde a la medición de absorbancia utilizando la técnica de espectrofotometría y el protocolo interno PR-T010, además de contemplar el uso de fuentes primarias y secundarias de información, los resultados de laboratorio, aplicados en las zonas de interés, nos permitieron obtener información cualitativa y cuantitativa de las concentraciones de TPH en las masas de aguas superficiales de las quebradas en cuestión, además de permitirnos realizar una comparación con valores considerados por organismos internacionales, comprendiendo el grado de contaminación de estos recursos hídricos y su impacto en los ecosistemas dependientes, en especial el impacto en los ecosistemas que se encuentran dentro de estas unidades hidrográficas
Combined methods for solving degenerate unconstrained optimization problems
Authors: Zadachyn Viktor , Bebiya Maxim 
Published: June 2024

UDC 519.853.6 : 519.613.2 We present constructive second- and fourth-order methods for solving degenerate unconstrained optimization problems. The fourth-order method applied in the present work is a combination of the Newton method and the method that uses fourth-order derivatives. Our approach is based on the decomposition ofℝninto the direct sum of the kernel of a Hessian matrix and its orthogonal complement. The fourth-order method is applied to the kernel of the Hessian matrix, whereas the Newton method is applied to its orthogonal complement. This method proves to be efficient in the case of a one-dimensional kernel of the Hessian matrix. In order to get the second-order method, Newton's method is combined with the steepest-descent method. We study the efficiency of these methods and analyze their convergence rates. We also propose a new adaptive combined quasi-Newton-type method (ACQNM) based on the use of the second- and fourth-order methods in the degenerate case. The efficiency of ACQNM is demonstrated by analyzing an example of some most common test functions.
Energy and Temperature Dependencies for Electron-induced Sputtering from H2O Ice: Implications for the Icy Galilean Moons
Authors: Carmack Rebecca A. , Loeffler Mark J. 
Published: June 2024

Abstract
To better assess the role that electrons play in exosphere production on icy bodies, we measured the total and O2 sputtering yields from H2O ice for electrons with energies between 0.75 and 10 keV and temperatures between 15 and 124.5 K. We find that both total and O2 yields increase with decreasing energy over our studied range, that they increase rapidly at temperatures above 60 K, and that the relative amount of H2O in the sputtered flux decreases quickly with increasing energy. Combining our data with other electron data in the literature, we show that the accuracy of a widely used sputtering model can be improved significantly for electrons by adjusting some of the intrinsic parameter values. Applying our results to Europa, we estimate that the contribution of electrons to the production of the O2 exosphere is equal to the combined contribution of all ions. In contrast, sputtering of O2 from Ganymede and Callisto appears to be dominated by irradiating ions, though electrons still likely contribute a nonnegligible amount. While our estimates could be further refined by examining the importance of spatial variations in electron flux, we conclude that, at the very least, electrons seem to be important for exosphere production on icy surfaces and should be included in future modeling efforts.
Pluralité des savoirs et puissance des injustices épistémiques
Authors: Carrel Marion 
Published: June 2024

À l’heure où sciences et recherches participatives se développent, les modalités plus ou moins inclusives du « produire avec » sont à interroger, afin d’en mesurer les effets sur la perpétuation ou le recul des inégalités en leur sein. Cette réflexion a tout intérêt à se construire dans un dialogue entre sciences et société, et pas seulement depuis le point de vue des chercheur·es académiques. Tissant des parallèles entre les dilemmes et faux-semblants de la participation dans divers mondes sociaux, cet article explore d’abord le phénomène de redoublement des inégalités auquel la participation peut paradoxalement conduire, drame qui se rejoue de manière comparable dans la démocratie participative et les recherches participatives. La deuxième partie, centrée sur les leviers permettant de lutter contre les inégalités sociales et les injustices épistémiques, apporte des clés d’analyse sur les enjeux de pilotage pluriel et de validation croisée des démarches participatives.
Distribution spatiale et structure démographique de Khaya spp. sur la chaîne de l’Atakora au Togo
Authors: Issa Issifou , Wala Kpérkouma , Atakpama Wouyo , Kanda Madjouma , Batawila Komlan , Akpagana Koffi 
Published: June 2024

Les espèces du genre Khaya font l’objet de la surexploitation pour le bois d’œuvre et les usages médicinaux entraînant la menace de leur disparition. Cette étude sur la distribution spatiale et la structure démographique des espèces du genre Khaya a été réalisée sur la chaîne de l’Atakora au Togo. Elle a pour objectif général de contribuer à la gestion durable des Khaya spp. au Togo. Elle vise spécifiquement à déterminer la distribution spatiale des espèces du genre Khaya sur la chaîne de l’Atakora au Togo et analyser l’impact de la pression anthropique sur leur structure démographique. La méthodologie utilisée est basée sur un inventaire forestier par échantillonnage orienté par la présence de Khaya spp. à l’intérieur de 154 placettes de 2500 m² dans les champs et les jachères, de 900 m² dans les savanes arborées, de 400 m² dans les forêts claires et dans les agroforêts et de 500 m² dans les forêts galeries. Les paramètres dendrométriques relevés sont : la hauteur totale et le diamètre de toutes les espèces ligneuses à partir de la mesure de leurs circonférences. Les espèces de Khaya spp. identifiées dans la zone d’étude sont : Khaya senegalensis, Khaya grandifoliola et Khaya anthotheca. La densité de Khaya spp. est variable sur l’ensemble de la chaîne de l’Atakora. Elle est plus élevée dans la partie sud de la zone écologique II et dans la partie sud-ouest de la zone écologique IV où cette densité est supérieure à 50 pieds/ha. Cette densité est plus élevée dans les forêts claires et dans les agroforêts. La structure démographique des Khaya spp. est en cloche avec une prédominance des individus de faible diamètre. Les individus âgés de gros diamètre sont principalement prélevés pour le bois d’œuvre. La régénération de K. senegalensis est plus élevée que celle de K. grandifoliola et de K. anthotheca. Les pieds de K. senegalensis sont plus coupés dans la zone d’étude et aussi la plupart des pieds de cette espèce ont atteint la maturité libérant les semences pour la régénération. Les espèces du genre Khaya sont très exploitées au Togo d’où la nécessité d’adopter des méthodes de gestion durable telles que les reboisements intensifs et l’application des bonnes méthodes de prélèvement des organes pour la survie de ces espèces.
Mortality and Morbidity in Acute Heart Failure with Cerebrovascular Accident (Stroke/Transient Ischemic Attack) Stratified by Ejection Fraction
Authors: Al Sharekh Nayef , Al Jarallah Mohammed , Dashti Raja , Bulbanat Bassam , Ridha Mustafa , Sulaiman Kadhim , Al-Zakwani Ibrahim , Alsheikh-Ali Alawi A. , Panduranga Prashanth , Alhabib Khalid F. , Suwaidi Jassim Al , Al-Mahmeed Wael , AlFaleh Hussam , Elasfar Abdelfatah , Al-Motarreb Ahmed , Bazargani Nooshin , Asaad Nidal , Amin Haitham , Setiya Parul , Al-Saber Ahmad , Rajan Rajesh , Tabatabaei Ghazaal Alavi 
Published: June 2024

Abstract

Background:
Heart failure (HF) is a prevalent condition in our society, frequently accompanied by various interacting comorbidities. Among these, brain-related comorbidities such as stroke and transient ischemic attack (TIA) play a crucial role in exacerbating the severity of HF. The relationship between cerebrovascular accidents (CVAs) and HF across different left ventricular ejection fraction (LVEF) levels is not well understood.

Objectives:
This study aims to assess the impact of CVA including stroke and TIA on mortality and morbidity in patients with acute heart failure (AHF) stratified by LVEF.

Methods:
We conducted an analysis of consecutive patients admitted to 47 hospitals in seven Middle Eastern countries (Saudi Arabia, Oman, Yemen, Kuwait, United Arab Emirates, Qatar, and Bahrain) with AHF from February to November 2012 with AHF who were enrolled in a multinational registry of patients with HF. The study population consisted of patients with CVA and AHF, categorized into three groups based on EF: HF patients with preserved EF (HFpEF) (250%), HF patients with reduced EF (HFrEF) (<40%), and HF patients with mid-range EF (HFmrEF) (40%–49%). Univariate and multivariate statistical techniques were employed for the analysis.

Results:
Our study involved 370 patients, averaging 66.4 ± 13.2 years. In-hospital mortality for CVA and AHF patients was 8.4% (n = 31). Patients in different ranges of LVEF experienced comparable rates of hospitalization and mortality at both the 3-month and 12-month intervals. Left atrial enlargement (odd ratio [OR]: 3.27, 95% confidence interval [CI]: 1.33–9.32, P = 0.015) and noninvasive ventilation (OR: 6.17, 95% CI: 2.71–14.07, P < 0.001) were associated with a higher mortality rate while discharging on digoxin (OR: 0.14, 95% CI: 0.02–0.52, P = 0.011) was linked to lower mortality. The sole distinction among HF groups was observed in 12-month survival, with HFpEF patients having a superior survival rate of 91.7% compared to HFIEF patients at 77.5% and HFmrEF at 77.8% during this period.

Conclusions:
This study found significant differences in all-cause mortality at 12 months. Further research is warranted to better understand the mechanisms underlying these associations.
Evaluation of the Monocyte Chemoattractant Protein-1 Gene (rs1024611) Polymorphism in Burn Wound Patients
Authors: Kudhair Hasan Fadhil , Al-Hasnawi Abeer Thaher Naji , Alyassery Ali Jalil Ali 
Published: June 2024

AbstractBackground:Burns are described as heat- or acute trauma-induced skin injuries or other body tissue. One cytokine that promotes inflammation is monocyte chemoattractant protein-1 (MCP-1), which is essential to the inflammatory process. This study aimed to investigate the relationship between the genetic variation ofMCP-1-2518A/G and the severity of bacterial infection in burn wounds.Methods:A case–control study included 35 burn wound patients and 35 healthy people as a control group. Whole blood was used for DNA extraction. DNA extraction was used to detect theMCP1gene (rs1024611) polymorphism using conventional polymerase chain reaction.Results:Regarding the genotypes of theMCP1gene (rs1024611) polymorphism, there were statistical differences (P= 0.008) between the groups under study. In patients, compared to controls, the AA genotype was higher, whereas it was discovered that controls had a higher frequency of the AG and GG genotypes than did patients. In addition, patients’ “A” allele levels were higher than those of controls. On the contrary, the patients’ “G” allele was lower than that of the control group, with a significant difference (P= 0.001).Conclusion:The result of this study has shown that in patients, the AA genotype was higher than in controls. Therefore, theMCP1gene (rs1024611) polymorphism may have a protective role in burn wound bacterial infection.
A Comparative Investigation on Cytokine Expression in Pulmonary Tuberculosis and Comorbidity with Type 2 Diabetes Mellitus
Authors: Singh Khusbu , Hussain Tahziba , Gupta Bhawna , Pati Sanghamitra 
Published: June 2024

Background:Mycobacterium tuberculosis(Mtb) is the causative agent of tuberculosis (TB), with a high global prevalence and mortality rate. To control the gruesome pathogen, a deep understanding of pathophysiology and host–pathogen interaction is essential for early diagnosis and novel drug development. Cytokines play a crucial role in infection and susceptibility, and their expressions could serve as potential biomarkers to enhance our understanding of Mtb pathophysiology for improved therapeutic approaches. This cross-sectional study investigates the levels of four important T-cell immune-mediated cytokines: interleukins (IL-6 and IL-10), interferon-gamma (IFN-γ), and tumor necrosis factor-alpha in 80 cohort samples, with 20 people in each group.Methods:Following proper ethics and patient consent, we collected blood samples and isolated serum from all four groups: TB, type 2 diabetes mellitus (T2DM), type 2 diabetes–TB comorbidity (T2DM + TB), and a healthy individual as a control group (C). Furthermore, cytokine expression was measured in individual serum samples through the enzyme-linked immunosorbent assay method using commercial kits (Diaclone, French). Statistical significance was observed by analyzing triplicate data usingt-tests and the one-way ANOVA method with GraphPad Prism 10.Results:The results showed that all four cytokine levels were higher (P≤ 0.0001) than the control, especially IL-6, IL-10, and IFN-γ, which were found to be upregulated in T2DM + TB samples (P≤ 0.0001) than individual TB or T2DM samples.Conclusion:The high levels of cytokines in comorbidity cases raise the risk of insulin resistance and the severity of TB infection. These levels of expression could be used to keep track of the Mtb infection status or severity, aid in early diagnosis as a possible biomarker, and suggest possible treatment plans.