bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation of nutritional and physicochemical characteristics of soy yogurt by Lactobacillus plantarum KU985432 and Saccharomyces boulardii CNCMI-745
Authors: Mehaya Fathy M. , El-Shazly Asmaa I. , El-Dein Asmaa Negm , Farid Mohamed A.
Published: August 2023

Nutritional yeast-produced soy yogurt has grown in demand, because of its unique nutritional and health benefits. It has low cholesterol, no lactose, and high levels of protein, probiotic yeast, vitamins, and minerals. In this work, Soymilk (12.5%) was prepared and fermented to produce soy yogurt. Growth curves, probiotic characteristics of Saccharomyces boulardii CNCMI-745 and Lactobacillus plantarum KU985432 were determined. The nutritional value of both yogurts was evaluated, including viable cell count, protein, vitamin B-complex, sugars, phenolic acids, and fatty acids, mineral content, stability, and storage. Analysis of the physicochemical composition of the yogurts included assessment of titratable acidity, antioxidant potential, viscosity, and moisture content. The probiotic viable count of the produced yogurts met the standards for commercial yogurts. S. boulardii CNCMI-745 displayed safety characteristics and high tolerance to heat, acid, and alkaline stress. The produced B vitamins increased in both yogurts. The total saturated fatty acids in Saccharomyces-yogurt decreased, while the unsaturated fatty acids increased. Saccharomyces-yogurt showed high antioxidant activity, phenolic acids, and crude protein content. Both yogurts demonstrated the same tendency for stability during 16 day-storage. In conclusion, using nutritional yeast in the production of soy yogurt increased its nutritional content more than probiotic lactic acid bacteria.
HLA-DQ and alcohol in the pathogenesis of irritable bowel syndrome in college students: a case–control study
Authors: Liu Huaying , Huang Lan , Li Li , Lu Tingting , Liang Huiping , Liu Chunbin
Published: August 2023

Some researchers have shown that genetics contribute to the incidence of IBS. However, no research has focused on the interaction between HLA-DQ and living habits in the pathogenesis of IBS. The present study explored the risk factors for IBS in college students of Guangxi Han nationality and explored the interaction between HLA-DQ and living habits on the pathogenesis of IBS. Univariate and multivariate analyses were used to determine the risk factors for IBS. Logistic interaction analysis and the Excel table made by Andersson were used to explore the interaction between genes and living habits in the context of IBS. We found that low expression of HLA-DQ2 and DQ8 were associated with the pathogenesis of IBS, while mild to moderate alcohol consumption was associated with the occurrence of IBS symptoms. Only the HLA-DQ8 gene and alcohol consumption had additive interactions in the context of the occurrence of IBS. In other words, for college students of Guangxi Han nationality, HLA-DQ2 and HLA-DQ8 might be protective against IBS, while alcohol consumption might be an independent risk factor. There was an additive interaction between HLA-DQ8 and alcohol consumption in the occurrence of IBS.
Trends in baseline triglyceride-glucose index and association with predicted 10-year cardiovascular disease risk among type 2 diabetes patients in Thailand
Authors: Lertsakulbunlue Sethapong , Mungthin Mathirut , Rangsin Ram , Kantiwong Anupong , Sakboonyarat Boonsub
Published: August 2023

Triglyceride-glucose (TyG) index is an independent risk factor for cardiovascular diseases (CVD). Our study determined the trends of the TyG index and its relationship to predicted CVD risk among patients with type 2 diabetes (T2D). A serial cross-sectional study was conducted including 63,815 participants with T2D aged 30–74 years without a history of CVD. The predicted CVD risk was based on the Framingham Heart Study (FHS). The receiver operating characteristic (ROC) curve was utilized for identifying the cutoff point of TyG index to predict intermediate-to-high CVD risk. The relationship between TyG index and predicted CVD risk was tested using linear and logistic regression. Decreasing trends of TyG index were observed between 2014 and 2018 (p < 0.001). ROC curve analysis of the TyG index indicated an AUC of 0.57 (95% CI 0.56–0.57, p < 0.001) in predicting intermediate-to-high predicted CVD risk, with a cutoff value of TyG index > 9.2 (sensitivity of 55.7%, specificity of 46.8%). An independent relationship between the TyG index and predicted CVD risk was observed. High TyG index was independently associated with intermediate-to-high predicted CVD risk. From our study, the TyG index was positively related to predicted 10-year CVD risk. However, the predictive ability of the TyG index in predicting the intermediate-to-high predicted 10-year CVD risk among patients with T2D remained questionable.
Study of the mechanical characteristics of coal-serial sandstone after high temperature treatment under true triaxial loading
Authors: Wang Shuai , Wang Lianguo , Ren Bo , Ding Ke , Jiang Chongyang , Guo Jiaxing
Published: August 2023

In this study, a series of true triaxial loading tests were carried out on coal-measure sandstone after high temperature treatment by using a self-developed true triaxial test system combined with acoustic emission (AE) monitoring, and the mass loss, deformation characteristics and loss failure mode of sandstone before and after heat treatment were systematically studied. It is found that the true triaxial mechanical properties of sandstone after high temperature treatment are closely related to temperature, and the peak strength, maximum principal strain, volume strain, minimum fracture angle and elastic modulus, which all showed bimodal changes, and 800 °C is the threshold temperature of the first four parameters. The transition temperature of the elastic modulus is 400 °C. It is found that the test results of true triaxial high temperature sandstone are in good agreement with the existing true triaxial theory and test results. The failure forms of the samples at different temperatures show inverted “Y” or inverted “N” shapes. Shear failure occurs when the temperature is below 400 °C, and shear-tension failure occurs when the temperature is above 600 °C. At the same time, it is found that the AE signal has four periods, namely the quiet period, growth period, explosion period and decline period. The number of AE events corresponds to the deviatoric stress interval well. Experimental study of the mechanical properties of sandstone under the coupling effect of high temperature and true triaxial stress has guiding significance for the parameter selection and safety evaluation of roof sandstone in underground coal gasification.
Shared intentionality modulates interpersonal neural synchronization at the establishment of communication system
Authors: Liu Jieqiong , Zhang Ruqian , Xie Enhui , Lin Yixuan , Chen Danni , Liu Yang , Li Keshuang , Chen Mei , Li Yangzhuo , Wang Guanghai , Li Xianchun
Published: August 2023

Whether and how shared intentionality (SI) influences the establishment of a novel interpersonal communication system is poorly understood. To investigate this issue, we designed a coordinating symbolic communication game (CSCG) and applied behavioral, functional near-infrared spectroscopy (fNIRS)-based hyperscanning, and hyper-transcranial alternating current stimulation (hyper-tACS) methods. Here we show that SI is a strong contributor to communicative accuracy. Moreover, SI, communicative accuracy, and interpersonal neural synchronization (INS) in the right superior temporal gyrus (rSTG) are higher when dyads successfully establish a novel communication system. Furthermore, the SI influences communicative accuracy by increasing INS. Additionally, using time series and long short-term memory neural network analyses, we find that the INS can predict communicative accuracy at the early formation stage of the communication system. Importantly, the INS partially mediates the relationship between the SI and the communicative accuracy only at the formation stage of the communication system. In contrast, when the communication system is established, SI and INS no longer contribute to communicative accuracy. Finally, the hyper-tACS experiment confirms that INS has a causal effect on communicative accuracy. These findings suggest a behavioral and neural mechanism, subserved by the SI and INS, that underlies the establishment of a novel interpersonal communication system.
Interacting effects of graphene oxide derivatives and trace metals on freshwater brown trout (Salmo trutta L.) behaviour at different stages of development
Authors: Makaras Tomas , Jurgelėnė Živilė , Pakštas Vidas , Šemčuk Sergej
Published: August 2023

What are the prospects for GO in the removal of trace metals and what are the potential impacts of GO on aquatic organisms?
Effective construction of a CuCo MOF@graphene functional electrocatalyst for hydrogen evolution reaction
Authors: Song Yang , He Huiyi , Zhao Yangyang , Li Ying , Wu Mingzhu , Li Jing , Lu Xiangman , Zhao Lishuang , Wei Liguo
Published: August 2023

We subtly designed and synthesized a unique functional CuCoOC@rGO electrode with excellent activity and low overpotential of 120 mV at a current density of 10 mA cm−2 and a Tafel slope of 124 mV dec−1 for HER.
The effect of microencapsulated watermelon rind (Citrullus lanatus) and beetroot (Beta vulgaris L.) ingestion on ischemia/reperfusion-induced endothelial dysfunction: a randomised clinical trial
Authors: Volino-Souza Mônica , Oliveira Gustavo Vieira de , Tavares Anna Carolina , Souza Karen , Alvares Thiago
Published: August 2023

Microencapsulated watermelon rind and beetroot restored vascular function after ischemia-reperfusion injury.
Suppressive effects of bilobalide on depression-like behaviors induced by chronic unpredictable mild stress in mice
Authors: Li Shengnan , Yang Chengying , Wu Zeyu , Chen Yuanli , He Xiaoyu , Liu Rui , Ma Wanru , Deng Shaohuan , Li Jianwen , Liu Qingsong , Wang Yunchun , Zhang Wencheng
Published: August 2023

The flow chart of the mechanism of action of BB in treating depression-like behavior in CUMS mice.
Performance of the double-Wien filter of the Neoma MC-ICPMS/MS with an application to copper stable isotope compositions
Authors: Télouk Philippe , Albalat Emmanuelle , Bourdon Bernard , Albarède Francis , Balter Vincent
Published: August 2023

The new Neoma MC-ICPMS/MS is equipped with a prefiltering system consisting of a double-Wien filter and a collision/reaction cell whose performances are challenged using different combinations of magnetic and electrostatic field values and adjustable slit apertures.
Interference-free electron probe micro-analysis of bromine in halogen-bearing minerals and glasses: high-resolution measurements and quantitative elemental mapping
Authors: Hammerli Johannes , Boroughs Scott
Published: August 2023

This study reports a new approach for high-resolution Br analysis and mapping in minerals and glasses via EPMA. This approach advances our in situ micro-analysis capabilities because it does not require interference corrections for Br quantification.
Conservation of the enzyme-like activity and biocompatibility of CeO2 nanozymes in simulated body fluids
Authors: Zeng Muling , Zhang Xu , Tang Jie , Liu Xingfei , Lin Yichao , Guo Dongdong , Zhang Yuping , Ju Shijie , Fernández-Varo Guillermo , Wang Ya-Chao , Zhou Xiangyu , Casals Gregori , Casals Eudald
Published: August 2023

CeO2 nanozymes dispersed for 7 days in simulated body fluids maintain excellent biocompatibility and antioxidant properties. This work provides an experimental basis to explain their in vivo therapeutic effectiveness against chronic inflammation.
Iodine-promoted synthesis of CF3-substituted dihydroimidazobenzimidazole and CF3-dihydroimidazoindole via C–N bond formation
Authors: Komatsu Daiki , Yamada Kasumi , Hanamoto Takeshi
Published: August 2023

The iodine-promoted cyclization of various N-(2-CF3-2-NHTs)ethylbenzimidazoles and N-(2-CF3-2-NHTs)ethylindoles proceeded smoothly and efficiently under mild basic conditions.
Thermoresponsive behaviour of poly(N,N-diethylacrylamide) in aqueous two-phase systems
Authors: Bayliss Niamh , Yilmaz Gokhan , Plucinski Alexander , Becer C. Remzi , Schmidt Bernhard V. K. J.
Published: August 2023

The thermoresponsive behaviour of poly(N,N-diethylacrylamide) can be tuned when the polymer is placed in an aqueous-two phase system.
Cofacial porphyrin organic cages. Metals regulating excitation electron transfer and CO2 reduction electrocatalytic properties
Authors: Liu Xiaolin , Liu Chenxi , Song Xiaojuan , Ding Xu , Wang Hailong , Yu Baoqiu , Liu Heyuan , Han Bin , Li Xiyou , Jiang Jianzhuang
Published: August 2023

A comprehensive study of the photophysical behaviors and CO2 reduction electrocatalytic properties of a series of cofacial porphyrin organic cages reveals metals regulate the excitation electron transfer and CO2 reduction electrocatalytic properties.
Sideways propelled bimetallic rods at the water/oil interface
Authors: Arslanova Alina , Matthé Ine , Deschaume Olivier , Bartic Carmen , Monnens Wouter , Reichel Erwin Konrad , Reddy Naveen , Fransaer Jan , Clasen Christian
Published: August 2023

In this study, we investigate the influence of a water/oil interface on the propulsion of anisotropic self-electrophoretic active particles.
Hemi-methylamine lithium borohydride as electrolyte for all-solid-state batteries
Authors: Grinderslev Jakob B. , Skov Lasse N. , Jensen Torben R.
Published: August 2023

Hemi-methylamine lithium borohydride is a new fast solid-state Li-ion conductor with a layered structure. It shows good stability towards Li-metal and is characterized in an all-solid-state battery, Li|LiBH4·1/2CH3NH2|TiS2, with operando PXD.
The Effects of Syntactic, Semantic, and Pragmatic Prominence on Pronoun Interpretation in Adults With Intellectual and Developmental Disabilities
Authors: Hawthorne Kara , Loveall Susan J.
Published: August 2023

Purpose:

Pronouns are referentially ambiguous: For example, “she” could refer to any female. Nonetheless, errors in pronoun interpretation rarely occur for adults with typical development (TD) due to several strategies implicitly shared between the talker and listener. The purpose of this study was to test the impacts of syntactic, semantic, and prosodic prominence on pronoun interpretation for adults with intellectual and developmental disabilities (IDD) and TD.

Method:

Adults with IDD (
n
= 28) and TD (
n
= 27) listened to ministories involving a pronoun with two potential antecedents that varied in syntactic, semantic, and pragmatic prominence. Subject/first-mentioned antecedents are more syntactically prominent than object antecedents. Semantic prominence was manipulated via verb transitivity: Subjects are more semantically prominent when the verb is highly transitive (e.g., “hit” vs. “see,” a low-transitivity verb for which the subject is merely experiencing the action). Pragmatic prominence was manipulated by placing prosodic focus on one of the two potential antecedents. Eye gaze to images representing the potential antecedents was tracked as a measure of online processing. Responses to a follow-up pronoun interpretation question were also recorded.

Results:

Adults with TD used syntactic, semantic, and—in early processing—pragmatic prominence when interpreting ambiguous pronouns. Adults with IDD were sensitive to syntactic prominence but to a significantly lesser extent than their peers with TD.

Conclusions:

Pronouns are an integral part of everyday conversation, and when the conversational partners do not share common strategies to link ambiguous pronouns with their antecedents, misunderstandings will occur. Results show that adults with IDD only weakly share pronoun interpretation strategies with adults with TD, suggesting that pronouns may be an important focus for intervention for this population.

Supplemental Material:

https://doi.org/10.23641/asha.23875809
Shape optimisation of basin insulator for DC gas insulated switchgear/gas insulated transmission lines based on artificial bee colony algorithm
Authors: Luo Yi , Mao Shiyi , Tang Ju , Pan Zijun , Pan Cheng
Published: August 2023

The surface charge accumulation on the basin insulator is a particular problem in high‐voltage direct current (HVDC) gas insulated switchgears (GIS) and gas insulated transmission lines (GIL), which restricts the development and application of extra/ultra high‐voltage (EHV/UHV) technology. The surface charge distribution and anti‐flashover performance are closely related to the insulator shape. To obtain the optimal basin insulator, a shape optimisation model based on artificial bee colony algorithm was established, and the minimisation objective functions based on capacitive (initial) electric field distribution and resistive (steady‐state) electric field distribution were respectively constructed. The optimisation results of the two objective functions were calculated, and the electric field and charge distribution on the surface of the insulator before and after optimisation were evaluated and compared using the simulation model. The results indicated that the optimisation based on the capacitive electric field can significantly inhibit the surface charge accumulation, and the optimised insulator can significantly reduce the surface normal electric field and make the distribution of the tangential electric field more uniform, and the maximum tangential electric field can be reduced by 10%; the optimisation based on resistive electric field can achieve similar results, but requires more computational resources. Based on the results, the ‘anti‐charge’ basin insulator structure suitable for the DC field was given.
Intensification of heat-exchange of a direct-flow steam boiler of a coil type based on an educational laboratory stand
Authors: Bekhterev Dmitriy , Shmatkov Yury , Kuskarbekova Sulpan , Karimov Ildar , Zulkarnaev Danil
Published: August 2023

In the work under consideration, using an experimental stand formed by a cylindrical coil, the modes of air movement through the flue of a ramjet steam boiler were investigated. Experimental studies have revealed shortcomings in the operation of a direct-flow steam boiler and proposed ways to increase heat transfer in a steam boiler by turbulizing the gas-air flow in the convective part of the boiler flue. The Ansys programmable engineering environment was used to simulate the heat exchange between waste gases and water in the heat exchanger. The Ansys SpaceClaim program was used to design the geometric model. Finite element grid was created using the Ansys Icem CFD program. In the process of creation, materials were selected and designated for each part of the model, water and steam temperatures inside the heat exchanger, exhaust gas temperature, boundary conditions and heat exchange conditions between them were also set. After entering all the parameters the model calculations were carried out and the results were presented in the form of a temperature distribution diagram. In conclusion, a variant of further research of aerodynamic processes in a ramjet steam boiler and a demonstration of the selected option were presented.
Electromechanical transmission of an all-wheel drive vehicle with a central traction electric motor
Authors: Dobretsov Roman , Ivanov Aleksandr , Karnaukhov Andrey , Voinash Sergey , Zagidullin Ramil , Beliakov Alexey
Published: August 2023

Modern approaches to the construction of a kinematic scheme of an electromechanical transmission are considered. It is shown that for all-wheel drive transport and transport-technological mobile platforms, it is advisable to use a central traction electric motor operating with a two-mode reduction gear connected in series and a transmission based on controlled inter-axle and inter-wheel power distribution mechanisms. It is shown that such a scheme makes it possible to improve the operating conditions of the traction motor, reduce its installed power, dimensions and weight. At the same time, it remains possible to fully control the traction force on the drive wheels, use power recovery, and work in the mode of dynamic stabilization of the motion trajectory. The structure of the electromechanical transmission based on the described principles is proposed. The principles of operation of controlled interaxle and interwheel power distribution mechanisms based on gear differentials are considered. Examples of simplified kinematic schemes of promising mechanisms are given and principles of their control are proposed. The principles of determination of external parameters and synthesis of kinematic schemes of interaxle and interwheel differentials with friction control are considered.
Study of a Copper Microelement Compound Formed in Ammophosis Pulp
Authors: Ramazonova Dilbar , Turayev Zokirjon , Mamurov Bakhodir , Shamishova Aisholpan , Absattorov Diyorbek , Usmanov Ilkham , Samadiy Murodjon
Published: August 2023

The results of physicochemical analyzes of the compound CuNH4PO4∙ H2O isolated from ammophos pulp at pH 6.58 obtained by neutralization of phosphoric acid containing copper sulfate as a trace element with gaseous ammonia are presented. The compound was found to have the formula [Cu (NH3) (H2O) HPO4]. The parameters of the N–H bond for the coordinated amino group were calculated: force constant, bond angle, and interatomic distance. In the transition from the electronic spectrum of the reflection of copper hydrophosphate monohydrate to the spectrum of copper ammonium phosphate monohydrate, a hypochromic shift of a maximum of 74 nm is observed, which indicates the entry of an ammonia molecule into the composition of copper monoaquahydrophosphate with the formation of copper monoaquaaminehydrophosphate. This is confirmed by the absence of an intense wide band at 3100-2900 sm- 1characteristic of the ammonium cation in the IR spectrum.
Assessment of the level of reliability and safety based on the index of the technical condition of the equipment of energy systems
Authors: Sultanov M M , Shamigulov P V , Baydakova N V , Ivanitsky M S , Kuryanova E V , Norov D Sh
Published: August 2023

results of evaluation and forecasting of reliability indicators of technological equipment are presented on the basis of a neural network model for calculating fault-free operation indicators taking into account safety indicators of the generating system. In the process of creating a neural network, a topology was developed, a mechanism for training and testing the model was determined. During the study, a sample of input data was created, an algorithm for functioning and data exchange was built. The analysis of statistical data on the joint influence of a number of parameters of technical condition of resource-determining functional units on their index of technical condition, on the general technical condition of the hydraulic unit, which showed that the most confirmed are the joint effect of increasing the pressure difference in the servomotor cavities and increasing the pressure difference in the servomotor cavitation erosion of the blades in the flow part of the hydraulic unit. Multivariate data bases formed by the neural network model, combining the effect of blade turning on the change in the probability of hydraulic power equipment failure, impact of shaft combat on the index of technical condition of the unit “turbine bearing and shaft,” influence of shaft vibration change on index of technical condition of hydraulic power equipment and turbine cover, and taking into account the park life, inter-repair period, accident rate, metal condition should be used to create prognostic models that provide approaches to extending the operable state of elements of hydropower equipment. Obtained results can be used in creation of modern systems of monitoring and diagnostics of power equipment, its separate elements required for collection, storage, archiving of data taking into account actual state of specific element of hydraulic unit for qualitative prediction of indicators of reliability of hydropower equipment in order to increase efficiency of operation of generating and power systems.
Choosing a strategy for the development of hard-to-recover oil reserves based on integrated modeling
Authors: Agishev Ernest , Andreev Vadim , Dubinsky Gennady
Published: August 2023

The article presents an integrated approach to the selection of the most optimal option for involving in the development of oil reserves confined to thin-layered clay-bearing reservoirs, based on integrated modeling. Previous studies of facies, geological and petrophysical reservoirs of the reservoir under consideration using a newly sampled core made it possible to reconsider the prospects for oil production, which was previously considered unprofitable. The use of the spectral method made it possible to take into account the high anisotropy of properties and achieve a highly detailed geological model, on the basis of which an increase in the initial geological reserves (IGZ) by more than 50% and their belonging to the category of hard-to-recover (TRIZ) is justified. The assignment of the deposit to the category of TRIZ made it possible to apply a preferential coefficient to the mineral extraction tax, which increased the economic attractiveness of the project. To reduce the risk of involvement of the underlying water-saturated interval, studies of the elastic-deformation properties of the reservoir rocks were carried out, on the basis of which a geomechanical model was built to select the optimal parameters for the hydraulic fracturing (HF) operation. To select the optimal location of production and injection wells, as well as the parameters of their injection using a hydrodynamic model, a feasibility study of development systems using directional (DW) and horizontal wells with multi-stage hydraulic fracturing (HW+MHF) was carried out. An integrated approach made it possible to develop solutions to more than double the oil recovery factor (ORF) and net present value (NPV) of the project.
Protection of biological objects from electromagnetic radiation
Authors: Korolev Ilya , Kravchenko Maxim , Fedorova Elena , Dolchinkov Nikolay
Published: August 2023

The article deals with issues related to the impact of electromagnetic radiation (EMR) on humans and biological objects (bio-objects). Such types of radiation as electromagnetic fields of low frequency and microwave range, infrared and ultraviolet and ionizing radiation are considered. Data on the harmful effects of EMR on biological objects are given. The basic principles of protection against EMR are considered.
Assessment of ambient air quality in areas influenced by fuel and energy enterprises to provide environmental safety of the population
Authors: Zaitseva Nina , Kleyn Svetlana , Andrishunas Alena
Published: August 2023

The article provides the spatial-dynamic and structural hygienic assessment of influence exerted by fuel and energy enterprises on ambient air quality and potential public health risks in the Russian Federation. An average potential health risk level (Rlav) equaled 5.44∙10-4 per one economic entity operating in the ‘Electrical power, gas and steam supply; air conditioning’ branch in the RF as a whole. In the RF regions, the highest potential health risk level per one economic entity was identified in the Siberian Federal District where it equaled 9.9∙10-4. According to the Register, the exposure level (Mi) established for economic entities operating in the ‘Electrical power, gas and steam supply; air conditioning’ branch and belonging to extremely high and high risk categories varies within the range of 0.0928 – 0.0093 and 0.00921 – 0.00092 million people accordingly; a potential health risk level identified for such economic entities equals 1.11∙10-3 – 0.17 and 1.0∙10-4 – 9.8∙10-4 accordingly.
Mineralogical and geochemical characteristics of bottom sediments of saline lakes in Transbaikalia
Authors: Komogortseva I A
Published: August 2023

The results of the research on the water mineralization, the mineral composition, ash content, and organic matter content of bottom sediments of stagnant saline lakes in Southeastern Transbaikalia are presented. It has been established that various ratios of feldspar, quartz, hydroxyl compounds, and carbonate minerals are universally found in the sediments. Sediments on the bottom contain a small amount of organic matter, which classifies them as highly siliceous, consisting mainly of sand and clay minerals. Changes in the mineralogical and geochemical characteristics of bottom sediments at different depths indicate changes in the hydrological regime of the studied lakes and water mineralization in these lakes over time.
Geoecological conditions of oil and gas fields of the unallocated subsoil fund of the southern industrial zone of the Yamal Peninsula
Authors: Kolesnikov Roman
Published: August 2023

The paper presents the results of geoecological studies on the territory of the Rostovtsevsky and Nurminskoye deposits. It has been established that during the exploration work in the period from 1985 to 1995, the landscapes of the southern industrial zone of the Yamal Peninsula were subjected to significant anthropogenic impact. Subsequently, self-restoration of natural-territorial complexes in the area of drilling sites practically did not occur. There is a significant landscape-ecological difference from the background territories.
Evaluation of the impact of technogenically polluted wastewater on the morphological and physiological parameters of phytoremediants in combination with various types of microorganisms
Authors: Tokhtar V K , Tretyakov M Yu , Zelenkova V N , Biryukov D V
Published: August 2023

The article presents data on the study of the effect of technogenically polluted wastewater on digital biomass and NDVI parameters of phytoremediants. Analysis of plant growth and development was carried out on Phragmites australis (Cav.) Trin. ex Steud. (obtained by in vitro method), Typha angustifolia L. and T. latifolia L. (obtained from seeds). All species were grown in combination with various microorganisms under the influence of technogenically polluted wastewater. The most effective combinations of symbiotic microbial-plant complexes have been identified, which are able to function actively under pollution conditions and can be recommended for their use in wastewater treatment.
Determining the common patterns of the action of nanoparticles of various compositions and structures on physiological and biochemical processes in plants
Authors: Polishchuk S D , Churilov D G , Churilov G I , Churilova V V , Obidina I V
Published: August 2023

Technogenic and natural nanomaterials are alien to living systems. The negative effect of nanomaterials may be due to their accumulation in intracellular organelles. The properties of nanoparticles are determined not only by their size, which manifests itself in the activation of a thermodynamic variable, but also by their chemical structure and shape, their ability to aggregate. The effect of metal nanoparticles and oxides of cobalt and titanium on the development and growth of plants has been studied. An important established fact is the ability of oxide nanoparticles, unlike metals themselves, to accumulate in living systems. Transmission electron microscopy, carried out by means of electron microscopic analysis, has revealed interstitial bioaccumulation of nanoparticles of cobalt oxide and titanium oxide in the form of aggregates 80-300 nm in size. If nanoparticles quickly aggregate, they are less dangerous for organisms than single nanoparticles, since a large aggregate of nanoparticles cannot get inside the cell. The rate and dynamics of deposition of nanoparticles of metals and their oxides in water are different. Metal NPs are deposited much more slowly than titanium dioxide. Moreover, the safety of NPs depends on their size and concentration. Biogenic nanoparticles with a size of 35-75 nm have high biological activity, biocompatibility and environmental safety. There is a direct correlation between the energy produced in cells, which is necessary for seed viability, and an increase in the number of protons under the action of metal nanoparticles, which leads to an increase in the permeability of cell membranes and the activity of enzymes and phytohormones.
Shoreline deformation of the Konda river: Trends and threats
Authors: Seredovskikh Boris
Published: August 2023

The study of the hydrological hazards in the north of Western Siberia is important because settlements in this territory are generally located on the banks of rivers and are therefore subject to the negative effects of water. The purpose of this study is to identify the dynamics of hydrological hazards in the settlements of the Konda river basin. The objectives of the study are aimed at identifying hazardous areas, which is necessary to make informed decisions related to rational bank reinforcement. The research object was the settlements of the Khanty-Mansi Autonomous district–Yugra (Kama village, Altay village, Vykatnoy settlement) within the latitudinal flow of the Konda river between 59 and 61 N and between 66 and 70 E, where the manifestation of hydrological hazards is active in nature. Research methods are based on field surveys using satellite geodetic surveying, remote probing, and bed mapping analysis. The data obtained during the study show that the most significant bank line deformations occur within the Vykatnoy, Kama, and Altay areas. The results showed the need for engineering solutions to bank reinforcement and protection of these settlements from the negative impact of river.
Preparation of poly (lactic-co-glycolic acid) microfiber membrane
Authors: Bai Lu , Chen Xiaoqi , Zhang Fen , Zhou Haijun , Li Yantao , Xiao Jijun
Published: August 2023

Poly (lactic-co-glycolic acid) (PLGA) is a kind of medical polymer material with good biodegradability and histocompatibility, which is widely used in postoperative anti-adhesion materials. In this paper, PLGA microfiber membrane was successfully prepared with poly(lactic-co-glycolic acid) as the main material by electrospinning technology. The surface morphology, wettability, dimensional stability and mechanical properties of PLGA microfiber films were characterized by scanning electron microscopy (SEM) and tensile testing machine. The results show that the average diameter of the prepared PLGA fiber is 2.218~2.313 μm, the elongation at break of the fiber film is up to 193%, and the dimensional stability and wettability of the fiber film are maintained at 37°C. The degradation cycle is 2~3 months.
Understanding the Flow Mechanism of Fuyu oil layer in a certain Block
Authors: Xing Jishuang
Published: August 2023

The Fuyu oil layer in a certain block is an ultra-low permeability oil layer. The development scale of sand bodies in the Fuyu oil layer is narrow, with rapid changes in facies on the plane, strong reservoir heterogeneity, and complex oil and gas accumulation and oil water distribution. Understanding the flow mechanism of the Fuyu oil layer in a certain block can help improve the development effect of this block
Research on influencing factors and remedial measures of coal seam water blocking effect
Authors: Zeng Wei , Lu Mingchang , Liao Jin , Li Xianjun , Zhang Shuling , Yang Zhou , Song Wenchao , Zhang Man
Published: August 2023

Coalbed methane development primarily relies on hydraulic fracturing and drainage gas extraction processes. The intrusion of external fluids and long-term drainage and extraction contribute to the water blocking effect, which becomes one of the crucial factors affecting production capacity. In this study, the coal reservoir of a certain coalbed methane in Hancheng, Shaanxi Province, was selected as the research object. The experimental method was employed to comprehensively evaluate the correlation between factors such as coal sample moisture content, permeability, porosity, properties of external liquids, and water blocking damage. The results indicated that there was a positive correlation between coal sample moisture content, liquid surface tension, and water blocking damage. On the other hand, coal sample pore permeability characteristics, liquid contact angle with rock samples, and water blocking damage showed a negative correlation. Building upon the aforementioned research, an investigation into remedial measures for water blocking damage was conducted. Additionally, a chemical treatment study using the compound surfactant system JSS-1 as a water-blocking agent was performed to manage the water blocking effect. The results demonstrated that JSS-1 as a water-blocking agent significantly reduced the surface tension of the wellbore fluid and improved its wetting behavior on the coal-rock surface. The laboratory experiments confirmed the capability of JSS-1 in managing the water blocking effect.
Numerical Investigation of Storage Behaviors of A Liquid CO2 Tank
Authors: Weng Yu , Li Liang , Liu Xia , Cheng Libo , Liu Yongchun , Yang Shuang
Published: August 2023

The dynamic behavior of heat transfer induced by flow of the storage tank during the storage process was investigated using the computational fluid dynamics (CFD) approach, with the target of the liquid CO2 storage tank in a CO2 injection station in an oilfield. The flow field distribution outside the tank was simulated, exhibiting the patterns of air flow near the tank wall. The effect of progressive cooling leakage in the tank under various conditions was determined through simulation of the dynamic of flow heat transfer under various storage settings, with the result indicating that tank pressure has a beneficial effect on cooling capacity. The medium level, on the other hand, had a negative impact on cooling capacity. Finally, the impact of environmental variables on fluid loss was evaluated. This finding supports the safety and cost-benefit analysis of liquid CO2 storage systems.
Research on Coordination Planning Model of Source-Grid-Load-Storage Considering Demand Response Uncertainty
Authors: Wu Shaojiang , Lu Min , Chen Chongle , Xu Baoguang , Xie Chuansheng
Published: August 2023

With the integration of wind power, photovoltaic, and other new energy into the grid, the growth of carbon emissions has been effectively suppressed, which greatly contributes to the realization of the “Carbon peak, Carbon neutral’’. However, the randomness and instability of new energy generation also greatly affect the stable operation of the power grid. At present, the combination of demand response and power system can give full play to the maximum potential of new energy. This is an effective method to realize stable and optimal operation of power system. Based on this, this paper first constructs the SOC output characteristic model of energy storage and considers the DLC and time-of-use price as well as different demand response types. The robust optimization method is used to deal with the uncertainty of demand response. Secondly, a multi-objective function and constraint conditions are constructed to minimize the system planning cost, operation cost, and pollution emission. Finally, the genetic algorithm is used to analyze an example in a certain area of Fujian. In the example, the economy of planning schemes under different robust control parameters is compared and analyzed. The results show that the model and calculation method in this paper are beneficial to delaying the investment in power systems, and can provide decision-making reference for mining and utilizing demand response resources, reducing system planning costs and improving operation efficiency.
Fatigue Analysis of Hybrid Wind Turbine Towers
Authors: Wei Yuan , Li Yingjie , Wu Zhaoqi , Chen Jinyu , Jiang Shaofei , Xiao Xianbiao
Published: August 2023

Fatigue analysis of hybrid wind turbine towers between cut in wind speed and cut out wind speed are demonstrated. Nominal stress method and miner liner accumulated damage theory are adopted. Through the analysis of the results, comparative research on effect of parameters of aspect ratio, height ratio and unequal legs for fatigue properties of hybrid wind turbine towers. The results show that the optimal range of aspect ratio of hybrid towers is 1/6~1/4, the optimal range of height ratio of hybrid towers is 0.60~0.67. Fatigue analysis of hybrid towers, should select the right junction of leeward towers and the S-N curve from EN 1993-1-9.The effect of unequal legs for fatigue properties of hybrid towers can be neglected.
Gewürz, Bienenweide, Heilkraut
Authors: Lorenz Daniel
Published: August 2023

Tee, Paste und Salbe aus dem Echten Thymian (Thymus vulgaris)
Intracranial Dural Arteriovenous Fistulas
Authors: Abdalkader Mohamad , Nguyen Thanh N. , Diana Francesco , Yaghi Shadi , Shu Liqi , Klein Piers , Mawad Michel E. , Kikano Raghid
Published: August 2023

Dural arteriovenous fistulas (DAVFs) are abnormal communications between meningeal arteries and dural venous sinuses and/or cortical veins. Although many fistulas are benign and do not require treatment, some may carry a significant risk of bleeding or cause symptoms and warrant treatment. This review provides a review of various aspects of intracranial DAVFs including epidemiology, pathophysiology, clinical presentation, imaging characteristics, classification, natural history, and management options. By exploring these topics, we aim to enhance understanding of this condition and facilitate patient care.
Gastroparesis and Gastroparesis Syndromes as Neuromuscular Disorders
Authors: Naing Le Yu , Mathur Prateek , Chhabra Garvit , Stocker Abigail , Abell Thomas L.
Published: August 2023

Gastroparesis syndromes (GpS) are a spectrum of disorders presenting with characteristic symptoms increasingly recognized as being gastrointestinal (GI) neuromuscular disorders (NMDs). This review focuses on GpS as a manifestation of neurologic disorders of GI NMD. GpS can be associated with systemic abnormalities, including inflammatory, metabolic, and serologic disorders, as well as autoimmune antibodies via nerve and muscle targets in the GI tract, which can be treated with immunotherapy, such as intravenous immunoglobulin. GpS are associated with autonomic (ANS) and enteric (ENS) dysfunction. Disorders of ANS may interact with the ENS and are the subject of continued investigation. ENS disorders have been recognized for a century but have only recently begun to be fully quantified. Anatomic structural changes in the GI tract are increasingly recognized in GpS. Detailed descriptions of anatomic changes in GpS, and their correlation with physiologic findings, have opened a new era of investigation. The management of GpS, when viewed as GI NMD, has shifted the paradigms of both diagnosis and treatment. This article concludes with current approaches to GpS directed at underlying neuromuscular pathology.
Barriers to Adherence of Early Mobilization Protocols in the Pediatric Intensive Care Units
Authors: Rodriguez Katherine M. , Hollis Taemyn , Kalinowski Valerie , Wilkerson Marylouise
Published: August 2023

Children who survive critical illness suffer many sequelae of prolonged hospitalization. National guidelines recommend pediatric intensive care units (PICUs) employ ICU care bundles to combat acquired delirium, pain, and weakness. While the use of early mobility (EM) protocols has increased in PICUs, there remain challenges with adherence. The aim of this study is to better understand perceived barriers to EM in the PICU before and after introducing an EM protocol. We hypothesized that providers would be most concerned about the safety of EM. This pre–post-survey study was conducted at a single-center tertiary PICU. A total of 94 PICU providers were included in this study, including nurses, physicians, and therapists. Responses were collected anonymously. Survey respondents consented to participation. The initial survey was conducted prior to enacting an EM protocol to gauge knowledge and opinions surrounding EM. Based on the results, education regarding EM was performed by a multidisciplinary team. An EM protocol “Move Jr.” was initiated. Four months postinitiation, a follow-up survey was sent to the same cohort of providers to determine knowledge of the protocol, changes in opinions, as well as barriers to the implementation of EM. While providers believed that EM was beneficial for patients and were interested in implementing an EM protocol, the initial top three perceived barriers to EM were risk of inadvertent extubation, risk of inadvertent loss of central lines, and time constraints. Four months after the initiation of the EM protocol, a follow-up survey revealed that the top three perceived barriers of EM had changed to time constraints, increased workload, and level of sedation. After 4 months, the change in perceived barriers suggests greater acceptance of the safety of EM but challenges in application. Survey responses describe a desire to perform EM exercises but difficulty finding time. Understanding of the protocol also differed among providers. Greater collaboration among providers could lead to more cohesive therapy plans. There was a clear benefit in educating providers to consider EM as a priority in patient care.
Pediatric Crimean–Congo Hemorrhagic Fever Experience during the COVID-19 Pandemic
Authors: Savaş Şen Zeynep , Tanir Gönül , Polat Meltem , Coşgun Yasemin , Yalcinkaya Rumeysa , Özdem Suna , Gümüşer Cinni Rüveyda , Kaman Ayşe , Aydin Teke Türkan , Öz Fatma Nur
Published: August 2023

Objective Crimean–Congo hemorrhagic fever (CCHF) is a zoonotic disease that is mainly transmitted by tick bites. During the COVID-19 pandemic, a change of notifications has been reported for most infectious diseases. We aimed to compare CCHF in pediatric patients during the COVID-19 pandemic and before the pandemic period with demographic, clinical, and laboratory features.

Methods Overall, 18 CCHF patients were evaluated and divided into two groups: those admitted from May 2014 to February 2020 were placed in the “prepandemic” group and those admitted from March 2020 to August 2021 were placed in the “pandemic” group. Patients were diagnosed as CCHF with polymerase chain reaction (PCR) and immunoglobulin M (IgM) antibody positivity in the blood samples.

Results Pediatric CCHF cases were more frequent during the 2 years of the COVID-19 pandemic period compared with the 6 years before the pandemic (10 cases and 8 cases, respectively). There were no demographic and clinically significant differences between the two groups. Prepandemic patients had lower platelet (PLT) levels than pandemic patients (p = 0.021). Two CCHF patients in the pandemic group were hospitalized with a preliminary diagnosis of multisystem inflammatory syndrome in children (MIS-C). Seventeen patients (94.4%) were treated with ribavirin. All the patients recovered.

Conclusion The frequency of CCHF appeared to have been increased during the COVID-19 pandemic. But there was no difference between the prepandemic and pandemic groups from a demographic and clinical finding point of view of patients diagnosed with CCHF.
Interference of red cell parameters by an endogenous substance: An interesting case report
Authors: Rajeswaran Priyadarshini Kumaraswamy , Kumar Prasanna Nedungadi , Balagurunathan Muruganantham , Arumugam Jayavardhana
Published: August 2023

A 6-month-old infant was brought to the hospital with fever, vomiting, loose stools, and abdominal distension. The venous blood sample was sent to the hematology laboratory for complete blood count (CBC). Analysis of the sample on the automated hematology analyzer showed a discrepancy in red blood cell count, hemoglobin, and hematocrit values. Examination of the blood sample revealed a cherry red color appearance. On centrifugation, the plasma was lactescent. This finding provided an essential clue to the patient’s diagnosis of severe hypertriglyceridemia. Turbidity of lactescent plasma interferes with CBC. Analytical errors in the CBC using an automated hematology analyzer caused by lactescent plasma and methods to resolve the false values will be discussed in this case report.