bluuebunny/crossref_metadata_2025 huggingface dataset:
Synthesis of novel mesoporous silica nanoparticles functionalized with succinic dihydrazone Schiff-base metal complexes and a study of their biological activities
Authors: Tahmasbi Leila , Sedaghat Tahereh , Motamedi Hossein , Mohammad kooti
Published: June 2023

For the first time, functionalized mesoporous silica nanoparticles (MSNs) with dinuclear Schiff-base complexes were synthesized as attractive organic–inorganic hybrids and their capability investigated for loading antibiotic drugs and immobilization of enzymes.
Enhancing photoluminescence of conjugated nanoparticles through graft polymer architectures
Authors: Masucci Ashley E. , Ghasemi Masoud , Pester Christian W. , Gomez Enrique D.
Published: June 2023

Graft polymers with a conjugated backbone were synthesized and fabricated into nanoparticles demonstrating improved photoluminescence through reduced aggregation.
Data-driven models for predicting intrinsically disordered protein polymer physics directly from composition or sequence
Authors: Chao Tzu-Hsuan , Rekhi Shiv , Mittal Jeetain , Tabor Daniel P.
Published: June 2023

A new representation for intrinsically disordered protein sequences is developed for usage in both classical and deep learning machine learning models.
Facile synthesis and selected characteristics of two-dimensional material composed of iron sulfide and magnesium-based hydroxide layers (tochilinite)
Authors: Mikhlin Yuri L. , Borisov Roman V. , Likhatski Maxim N. , Bayukov Oleg A. , Knyazev Yuriy V. , Zharkov Sergey M. , Vorobyev Sergey A. , Tomashevich Yevgeny V. , Ivaneeva Anastasiya D. , Karacharov Anton A. , Karpov Denis V. , Velikanov Dmitriy A. , Rautskii Mikhail V. , Smolyakov Dmitry A. , Tarasov Anton S.
Published: June 2023

We report the reliable synthesis of 2D iron sulfide-magnesium hydroxide nanoflakes. The sulfide and hydroxide sheets assemble via opposite electric charges. Comparable amounts of high-spin Fe3+ and Fe2+ centers occur in the sulfide layers.
Solvent dependent ESIPT-based probe for optical recognition of Zr(iv) and Zn(ii)
Authors: Shyam Tandrim , Ghosh Subhasis , Maji Sangita , Mandal Prosenjit , Das Debasis
Published: June 2023

1-Ethynylcyclohexyl appended bis-imine (DEC) efficiently recognizes Zr(iv) in EtOH–H2O and Zn(ii) in DMSO–H2O through intense green and blue fluorescence, respectively. The respective LODs and binding constants are 19.43 nM, 23.46 nM and 2.94 × 105 M−1, 1.97 × 105 M−1.
Theoretical studies on substrate-controlled selectivity of nickel-catalyzed hydroalkylation of 1,3-dienes
Authors: Liu Yuhua , Liu Difei , He Senyu , Huang Xiaofeng , Ding Feiqing , Zhang Yang
Published: June 2023

The detailed mechanism of the substrate-controlled selectivity in the nickel-catalyzed hydroalkylation of 2-substituted 1,3-diene has been investigated.
A new ligand-regulated strategy of highly mesoporous metal–organic frameworks assembled in ionic liquid/ethanol solvent
Authors: Ma Xiaoxue , Ren Pan , Fu Donglu , Kang Xinchen , Jing Minghua , Sang Xinxin , Fang Dawei , Song Zongren
Published: June 2023

The hierarchical porous HKUST-1 with excellent catalytic performance was controllably synthesized in an ionic liquid/ethanol system.
Highly active NiFe LDH anchoring on cobalt carbonate hydroxide for efficient electrocatalytic 5-hydroxymethylfurfural oxidation towards 2,5-furandicarboxylic acid
Authors: Dhanasmoro Lintang , Li Oi Lun
Published: June 2023

The NiFe LDH/CoCH/NF can efficiently electrocatalyze the conversion of 5-hydroxymethylfurfural from biomass to value-added 2,5-furandicarboxylic acid.
Ammonia-assisted synthesis of low-crystalline FeCo hydroxides for efficient electrochemical overall water splitting
Authors: Ren Huijun , Cheng Changgen , Yin Peiqun , Qin Qing , Dai Lei
Published: June 2023

Low-crystalline FeCo catalysts can be used for efficient hydrogen productionviawater electrolysis, with extremely low synthesis cost and a simple synthesis method.
Recent advances in prevailing antifogging surfaces: structures, materials, durability, and beyond
Authors: Chu Jiahui , Tian Guizhong , Feng Xiaoming
Published: June 2023

This review summarizes the current research progress of antifogging surfaces in recent years from antifogging structures, antifogging materials, improving durability, as well as new challenges and development orientations in this field.
Copper-catalysed chemoselective C–OH bond activation of N-benzoyl cytosine: facile access to 2-(dimethylamino)pyrimidine
Authors: Gaware Sujeet , Chatterjee Rana , Kapdi Anant R. , Dandela Rambabu
Published: June 2023

A novel method for the direct amination of N-benzoyl cytosine has been developed, giving access to 2-(dimethylamino)pyrimidine derivatives.
Synthesis and characterization of a novel [52Mn]Mn-labelled affibody based radiotracer for HER2+ targeting
Authors: Váradi Balázs , Brezovcsik Károly , Garda Zoltán , Madarasi Enikő , Szedlacsek Horea , Badea Rodica-Aura , Vasilescu Andrei-Mihai , Puiu Adina-Gabriela , Ionescu Aura Elena , Sima Livia-Elena , Munteanu Cristian V. A. , Călăraş Simona , Vágner Adrienn , Szikra Dezső , Toàn Ngô Minh , Nagy Tibor , Szűcs Zoltán , Szedlacsek Stefan , Nagy Gábor , Tircsó Gyula
Published: June 2023

Affibody linked to a rigid macrocyclic chelator derived form pyclen-3,9-diacetate (3,9-PC2A) labelled with [52Mn]Mn isotope appears to be a valuable tool for PET-based targeted molecular imaging.
Synthesis of fructose bound Fe(iii) integrated carbon dots as a robust turn-off detection sensor for chlortoluron
Authors: Rani  , Ali Faiz , Muhammad Mian , Ara Behisht , Shah Aftab Ali
Published: June 2023

A simple, sensitive, and robust fluorescent sensor for chlortoluron detection.
Magnetite-supported montmorillonite (K10) (nanocat-Fe-Si-K10): an efficient green catalyst for multicomponent synthesis of amidoalkyl naphthol
Authors: Patil Shripad M. , Tandon Runjhun , Tandon Nitin , Singh Iqubal , Bedre Ashwini , Gade Vilas
Published: June 2023

Montmorillonite (K10) loaded on magnetite silica-coated nanoparticles was made using simple co-precipitation methods.
Study of fusion peptide release for the spike protein of SARS-CoV-2
Authors: Yu Jie , Zhang Zhi-Wei , Yang Han-Yu , Liu Chong-Jin , Lu Wen-Cai
Published: June 2023

The spike protein of SARS-CoV-2 can recognize the ACE2 membrane protein on the host cell and plays a key role in the membrane fusion process between the virus envelope and the host cell membrane.
Nanoengineering of gold nanoribbon-embedded isogenic stem cell-derived cardiac organoids
Authors: Patino-Guerrero Alejandra , Esmaeili Hamid , Migrino Raymond Q. , Nikkhah Mehdi
Published: June 2023

Biofunctionalization of gold nanoribbons and their integration with stem cell-derived cardiac organoids show promising results for cardiac tissue engineering.
Molecular dynamics study on defect evolution during the plastic deformation of nickel-based superalloy GH4169 single crystal under different rolling temperatures
Authors: Yu Fang , Li Jiachun , Luo Xun
Published: June 2023

Rolling model diagram.
Electrolytic reduction of CrF3 and Cr2O3 in molten fluoride salt
Authors: Ji Nan , Jiang Fangling , Peng Hao
Published: June 2023

This study verified the feasibility of electroextraction of Cr from the FLiNaK-CrF3 and FLiNaK-Cr2O3-ZrF4 molten salt systems.
Toroidal moment and dynamical control in luminescent 1D and 3D terbium calixarene compounds
Authors: Wang Hao , Zhu Zhenhua , La Droitte Léo , Liao Wuping , Cador Olivier , Le Guennic Boris , Tang Jinkui
Published: June 2023

1D and the first 3D SMT polymers based on luminescent Tb(iii) calixarenes were constructed where dynamical control over SMT was realized for the first time thanks to the high thermal stability of the compounds.
Functional nanostructures in analytical chemistry: new insights into the optical and electrochemical sensing of animal hormones in food, environmental and biological samples
Authors: Raval Juhi Bhadresh , Mehta Vaibhavkumar N. , Jha Sanjay , Singhal Rakesh Kumar , Basu Hirakendu , Kailasa Suresh Kumar
Published: June 2023

Nanomaterial integrated analytical techniques for the detection of animal hormones.
Tuning the adsorption behaviors of non-noble electrocatalysts to boost valorization of 5-hydroxymethylfurfural
Authors: He Yunpeng , Zhu Botao , Wang Feng , Xiong Jie , Akram Muhammad Awais , Feng Lai
Published: June 2023

We demonstrate that NiCu oxide catalyst with low-coordinated surface sites facilitates the adsorption of 5-hydroxymethylfurfural (HMF) and hence exhibits good electrocatalytic performance towards HMF oxidation reaction (HMFOR).
A comprehensive investigation of the (Ti0.5Zr0.5)1(Fe0.33Mn0.33Cr0.33)2 multicomponent alloy for room-temperature hydrogen storage designed by computational thermodynamic tools
Authors: Ponsoni Jéssica Bruna , Balcerzak Mateusz , Botta Walter José , Felderhoff Michael , Zepon Guilherme
Published: June 2023

(Ti0.5Zr0.5)1(Fe0.33Mn0.33Cr0.33)2 multicomponent alloy designed by computational thermodynamic tools shows excellent room-temperature hydrogen storage properties.
Electrode|electrolyte interface enhancement in quasi-solid-state zinc–air batteries through an anion conducting polymer electrolyte interlayer by in situ polymerization
Authors: Kurian Maria , Vijayakumar Vidyanand , Manna Narugopal , Kanheerampockil Fayis , Bhat Suresh , Kurungot Sreekumar
Published: June 2023

This work introduces a novel concept of UV light-assisted in situ polymerization at the electrode|electrolyte interface in combination with an anion-conducting polymer electrolyte membrane (AEPEM) to improve the performance of quasi-solid-state ZABs.
A low-hysteresis, self-adhesive and conductive PAA/PEDOT:PSS hydrogel enabled body-conformable electronics
Authors: Gao Qiang , Li Chao , Wang Mingxu , Zhu Jiadeng , Gao Chunxia
Published: June 2023

A robust PAA/PEDOT: PSS conductive hydrogel with strong adhesion, well-matched modulus with skin tissue, low swelling, and negligible hysteresis was successfully prepared and exhibited promising application in wearable electronics.
Restriction of intramolecular bending (RIB) enables the quantitative design of AIEgens
Authors: Chi Weijie , Dai Jianfeng , Yan Chengxu , Tan Davin , Guo Zhiqian , Liu Xiaogang
Published: June 2023

The restriction of intramolecular bending (RIB) mechanism was proposed for the rational development of functional AIEgens.
Columnar liquid-crystalline J-aggregates based on N-core-substituted naphthalene diimides
Authors: Castellanos Eduardo , Gomila Rosa María , Manha Rasitha , Fernández Gustavo , Frontera Antonio , Soberats Bartolomé
Published: June 2023

Two approaches have been developed to prepare liquid-crystalline J-aggregates based on naphthalene diimides.
Reduced open-circuit voltage deficit in wide-bandgap perovskite solar cells enabled by thiazolidine-based interfacial engineering
Authors: Cui Guangyao , Zhang Xue , Zhu Yu , Chen Cong , Gao Zhiyu , Wang Juncheng , Xie Guo , Huang Hao , Zou Bingsuo , Zhao Dewei
Published: June 2023

A thiazolidine-based interfacial modification strategy is developed for wide-bandgap perovskite solar cells to promote the efficiency to 20.02% with a reduced VOC deficit of 0.51 V, along with good near-infrared transmittance.
Asymmetric donor–acceptor–host red thermally activated delayed fluorescent emitter for high-efficiency organic light emitting diodes
Authors: Li Hao-Ze , Xie Feng-Ming , Wu Ping , Zhang Kai , Zhao Xin , Li Yan-Qing , Tang Jian-Xin
Published: June 2023

A new asymmetric D–A–H type TADF emitter, TPA-AQ-DCP, is designed to improve exciton utilization and restrict intermolecular interactions in OLEDs with red emission and efficiency of up to 17.60%.
Two-dimensional Ti3C2Tx MXene nanosheets for CO2 electroreduction in aqueous electrolytes
Authors: Krishnan Sarathkumar , Marimuthu Senthilkumaran , Singh Mayank K. , Rai Dhirendra K.
Published: June 2023

Electrochemical conversion of CO2 to C1 and C2+ chemical synthons using a 2D Ti3C2Tx catalyst in benign aqueous electrolytes.
The pathogenesis of gut microbiota in hepatic encephalopathy by the gut–liver–brain axis
Authors: Zhu Ruirui , Liu Liwen , Zhang Guizhen , Dong Jianxia , Ren Zhigang , Li Zhiqin
Published: June 2023

Hepatic encephalopathy (HE) is a neurological disease occurring in patients with hepatic insufficiency and/or portal-systemic blood shunting based on cirrhosis. The pathogenesis is not completely clear till now, but it is believed that hyperammonemia is the core of HE. Hyperammonemia caused by increased sources of ammonia and decreased metabolism further causes mental problems through the gut–liver–brain axis. The vagal pathway also plays a bidirectional role in the axis. Intestinal microorganisms play an important role in the pathogenesis of HE through the gut–liver–brain axis. With the progression of cirrhosis to HE, intestinal microbial composition changes gradually. It shows the decrease of potential beneficial taxa and the overgrowth of potential pathogenic taxa. Changes in gut microbiota may lead to a variety of effects, such as reduced production of short-chain fatty acids (SCFAs), reduced production of bile acids, increased intestinal barrier permeability, and bacterial translocation. The treatment aim of HE is to decrease intestinal ammonia production and intestinal absorption of ammonia. Prebiotics, probiotics, antibiotics, and fecal microbiota transplantation (FMT) can be used to manipulate the gut microbiome to improve hyperammonemia and endotoxemia. Especially the application of FMT, it has become a new treated approach to target microbial composition and function. Therefore, restoring intestinal microbial homeostasis can improve the cognitive impairment of HE, which is a potential treatment method.
Analysis and experimental verification of transverse‐dislocated magnetic‐field modulated brushless contra‐rotating machine
Authors: Wang Yutao , Sui Yi , Liu Guopeng , Liang Xiaoyu , Zheng Ping
Published: June 2023

The contra‐rotating machine (CRM) has been a preferable selection of the contra‐rotating propulsion system (CRPS) owing to its high efficiency, high compactness, and low noise. However, the conventional CRM with rotating stator has the problem of brush and slip ring, and the conventional brushless CRM has the problem of coordinated control of equal and opposite torque. Aiming at the above problems, this article proposes a transverse‐dislocated magnetic‐field modulated brushless contra‐rotating machine (TDMFM‐BCRM). The proposed TDMFM‐BCRM has some advantages of no rotating winding, no associated brushes and slip rings, and equal and opposite torques at any time, therefore it has good potential for the CRPS. The working principle of the TDMFM‐BCRM including three dimensional magnetic‐field modulated theory, back electromotive force (EMF) generation, and torque relation is studied. Then, the influences of main parameters including magnetic block parameters and PM sizes on torques are investigated. The critical electromagnetic performances of the TDMFM‐BCRM are analysed. A prototype of TDMFM‐BCRM is manufactured and measured to validate the above analysis. Finally, the comparison of the TDMFM‐BCRM and the existing schemes are analysed.
High-resolution APEX/LAsMA 12CO and 13CO (3–2) observation of the G333 giant molecular cloud complex
Authors: Zhou J. W. , Wyrowski F. , Neupane S. , Urquhart J. S. , Evans N. J. , Vázquez-Semadeni E. , Menten K. M. , Gong Y. , Liu T.
Published: June 2023

Context. Hub-filament systems are suggested to be the birth cradles of high-mass stars and clusters.

Aims. We investigate the gas kinematics of hub-filament structures in the G333 giant molecular cloud complex using 13CO (3–2) observed with the APEX/LAsMA heterodyne camera.

Methods. We applied the FILFINDER algorithm to the integrated intensity maps of the 13CO J = 3–2 line to identify filaments in the G333 complex, and we extracted the velocity and intensity along the filament skeleton from moment maps. Clear velocity and density fluctuations are seen along the filaments, allowing us to fit velocity gradients around the intensity peaks.

Results. The velocity gradients we fit to the LAsMA and ALMA data agree with each other over the scales covered by ALMA observations in the ATOMS survey (<5 pc). Changes in velocity gradient with scale indicate a funnel structure of the velocity field in position-position-velocity (PPV) space. This is indicative of a smooth, continuously increasing velocity gradient from large to small scales, and thus is consistent with gravitational acceleration. The typical velocity gradient corresponding to a 1 pc scale is ~1.6 km s−1 pc−1. Assuming freefall, we estimate a kinematic mass within 1 pc of ~1190 M⊙, which is consistent with typical masses of clumps in the ATLASGAL survey of massive clumps in the inner Galaxy. We find direct evidence for gravitational acceleration from a comparison of the observed accelerations to those predicted by freefall onto dense hubs with masses from millimeter continuum observations. On large scales, we find that the inflow may be driven by the larger-scale structure, consistent with the hierarchical structure in the molecular cloud and gas inflow from large to small scales. The hub-filament structures at different scales may be organized into a hierarchical system extending up to the largest scales probed through the coupling of gravitational centers at different scales.

Conclusions. We argue that the funnel structure in PPV space can be an effective probe for the gravitational collapse motions in molecular clouds. The large-scale gas inflow is driven by gravity, implying that the molecular clouds in the G333 complex may be in a state of global gravitational collapse.
Radio continuum tails in ram pressure-stripped spiral galaxies: Experimenting with a semi-empirical model in Abell 2255
Authors: Ignesti A. , Vulcani B. , Botteon A. , Poggianti B. , Giunchi E. , Smith R. , Brunetti G. , Roberts I. D. , van Weeren R. J. , Rajpurohit K.
Published: June 2023

Context. Wide-field radio continuum observations of galaxy clusters are revealing an increasing number of spiral galaxies hosting tens of kiloparsec-length radio tails produced by the displacement of nonthermal interstellar medium (ISM) by ram pressure.

Aims. We present a semi-empirical model for the multifrequency radio continuum emission from ram-pressure-stripped tails based on the pure synchrotron cooling of a radio plasma moving along the stripping direction with a uniform velocity.

Methods. We combine LOFAR and uGMRT observations at 144 and 400 MHz to study the flux density and spectral index profiles of the radio tails of seven galaxies in Abell 2255, and use the model to reproduce the flux density and spectral index profiles, and infer the stripped radio plasma velocity.

Results. For five out of these seven galaxies, we observe a monotonic decrease in both flux density and spectral index up to 30 kpc from their stellar disk. Our model reproduces the observed trends with a projected radio plasma bulk velocity of between 160 and 430 km s−1. This result represents the first indirect measurement of the stripped, nonthermal ISM velocity. The observed spectral index trends indicate that the synchrotron cooling is faster than the adiabatic expansion losses, suggesting that the stripped radio plasma can survive for a few tens of million years outside of the stellar disk. This provides a lower limit on the lifetime of the stripped ISM outside of the disk. As a proof of concept, we use the best-fit velocities to constrain the 3D velocity of the galaxies in the cluster to be in the range of 300−1300 km s−1. We estimate the ram pressure affecting these galaxies to be between 0.1 and 2.9 × 10−11 erg cm−3, and measure the inclination between their stellar disk and the ram pressure wind.
Modernization of the thresher of a grain harvester
Authors: Revenko V.U. , Ivanov A.B. , Mishurov N.P.
Published: June 2023

The article presents the results of laboratory studies of a modernized threshing device of a combine harvester. The change in the design of the thresher was carried out in order to change the parameters of air flows in the gap between the threshing drum and the concave deck. It is shown that the introduced design changes contribute to a better separation of grain from the straw grate of the separated material and prevent the reverse movement of air masses from the threshing gap between the thresher beaters.
Ensuring safety in agriculture: Challenges, risks and measures to improve efficiency
Authors: Sergeenko Yulia , Abanina Elena , Litvinova Iuliia , Nikitenko Yulia , Bobrakova Natalya
Published: June 2023

The article is devoted to the issues of ensuring security in the field of agriculture. The article analyzed the great challenges facing agriculture, the risks arising in the process of agricultural activity, as a result, it was concluded that security in the field of agriculture can be ensured by balanced provision of all types of national security that intersect in this area: labor safety, food, ecological. The article highlights the main external and internal threats facing agriculture, defines the requirements for safe farming, taking into account threats and types of security. In conclusion, the main results of the work are presented and conditions are proposed that allow organizing efficient and safe agriculture.
Physiological features of platelet hemostasis in calves during the phase of plant nutrition, kept in the ecological conditions of central Russia
Authors: Zavalishina Svetlana
Published: June 2023

During the final phase of early ontogenesis in calves, there is a low activity of lipid peroxidation, pronounced antioxidant protection of platelets, an increase in the intensity of the actin-myosin complex, a significant content of adenosine phosphates in their granules and their intensive secretion under conditions of platelet activation. In calves during the phase of plant nutrition, there was a tendency to increase the hemostatic capacity of platelets, assessed in vitro and in vivo. A certain increase in platelet aggregation and secretion found in calves during the phase of plant nutrition is apparently caused by regular age-related changes in the implementation of post-receptor processes in their platelets, which ensure an increase in their hemostatic characteristics in the conditions of completion of growth and development of their body.
Modeling the development of agricultural production by cluster analysis
Authors: Lubova Tatiana , Salimova Guzel , Nigmatullina Gulnara , Islamgulov Damir , Sharafutdinov Aidar
Published: June 2023

The article carried out a multidimensional grouping of the regions of the Central and Volga Federal Districts of the Russian Federation according to indicators characterizing the state and development of agricultural production. The cluster analysis method was applied twice: when constructing a system of indicators for grouping regions and when combining regions into clusters. This approach made it possible to enhance the practical significance of the study, made it possible to objectively analyze and formulate reasonable specific conclusions and recommendations for the regions of each cluster. As a result, four groups (clusters) of indicators and three clusters of regions were identified according to the level of development of agricultural production.
Effect of hydrostatic pressure on seed germination and subsequent growth of Silybum marianum (L.) Gaertn. seedlings in Middle Ural introduction
Authors: Sharova Elena , Kruglikov Nikolai , Belyaev Alexander
Published: June 2023

The influence of pre-sowing treatment of holy thistle seeds (Silybum marianum) by hydrostatic pressure (from 10 to 200 MPa) on the dynamics of the emergence of seedlings and the subsequent development of seedlings in the open ground in the Middle Urals has been studied. It is shown that the treatment of seeds with a pressure of 10 MPa during their subsequent sowing a day later (after drying) provided good germination and accelerated the passage of all stages of the ontogenesis of holy thistle plants in the dry growing season of 2021. At the same time, earlier and more friendly maturation of seeds was observed in comparison with the control group of plants. Under more favourable weather conditions in 2022, holy thistle seeds after the same pressure treatment (10MPa) and drying showed very good field germination (76%), a high rate of ontogenesis of seedlings similar to the reference and the best development of generative structures.
Justification of methods for regulation the salt regime of irrigated soils in Uzbekistan under current conditions
Authors: Shirokova Yulia , Paluashova Gauharay , Sadiev Farkhod , Kodirov Dilshod , Urazkeldiev Abdivohid
Published: June 2023

Foreign approaches to maintaining a favorable salt regime of soils are analyzed. On the basis of experimental studies, a change in the water-physical properties of the soil during deep loosening and an increase in salt leaching during leaching and vegetation irrigation using the Biosolvent preparation were established. Based on the analysis of the leaching results, the optimal technologies and norms for leaching saline soils have been established.
The role of fruit-vegetable cluster-cooperative in providing food security in the Republic of Uzbekistan
Authors: Ergashev Rakhmatulla
Published: June 2023

In this research paper, the economic importance of the fruit-vegetable cluster-cooperative and its role in providing the country’s population with food is based on its relevance. The primary objective of the research is to provide industrial enterprises with raw materials through the use of the cluster cooperation system in harvesting fruits and vegetables products. In the conducted scientific research, scientifically based suggestions were given on mechanisms of state support for the growers of fruits and vegetables in the Republic of Uzbekistan, as well as the state regulation and organization of agrocluster. Simultaneously, the profitable indicators of fruits and vegetables growers were analyzed on the basis of cluster cooperation, and the rate of growth for fruits and vegetables cluster cooperation “Panji Kishmishzorlari” in Kitab district, Kashkadarya region of the country in 2010-2020. The analyses and data are retrieved from the fact that the growth is 130.9%, and the cultivated area has increased by 156.8% for this object. As a result of the stable growth of the cluster-cooperation of fruits and vegetables products of our country, proposals and recommendations have been developed to ensure food safety and provide the population with ecologically clean products by improving the fruits and vegetables industry. At present, practical proposals have been made for the foundation and expansion of fruits and vegetables cooperation in the field of vegetable growing as well as fruits and vegetables growing. This scientific research work reveals how to improve the scientific level of farmers and peasant farms and effective using the experiences of non-native countries in the expansion of fruit-vegetable cluster-cooperation. As a result of this, the issues of putting the commodities on the market through economic stimulation of fruits and vegetables producers and expansion of the market infrastructure and learning experience from scientific research institutes were highlighted. Ways of to upsurge the economic competence of fruits and vegetables cultivation, ways to develop fruits and vegetables cluster cooperation in the future are scientifically based.
Analysis of factors to increase the efficiency of the use of peasant farms and the land of the field
Authors: Khamraeva S. , Ochilova N.
Published: June 2023

This article analyzes the role of peasant farms and households in providing food to the population in Uzbekistan. Also, according to the results of the questionnaire received from the owners of peasant farms and households, the factors affecting the production efficiency of these economic entities were determined. Based on the results of the research, in the future, recommendations for improving the organizational and economic mechanisms of increasing the quality and productivity of the products grown on the farm and residential plots of land have been developed.
Basics of safety and organization of the workplace during the operation and repair of compressors at the enterprises of ATP
Authors: Lipkovich Igor , Egorova Irina , Petrenko Nadezhda , Voinash Sergey , Sabitov Linar , Kiyamov Ilgam
Published: June 2023

For many decades, any organization involved in the operation and maintenance of vehicles cannot imagine its activities without compressor units. Compressors are used in all sectors of the national economy, and are valued for their reliability, high efficiency, long service life. The scope of the equipment is very wide, without it the work of any large industrial enterprise is indispensable. Compressors are used in mechanical engineering, metallurgy, oil and gas industry, car services, construction and other industries. Each compressor unit is equipped with an emergency protection system that provides: automatic shutdown of the compressor; sound and light alarm. According to the requirements of the Rules, all compressor units are equipped with instrumentation: pressure gauges for measuring pressure, thermometers or other sensors for measuring temperature. The compressor is placed in a separate room, which should not be connected with the premises where explosive and chemically hazardous industries are located. In the premises of compressor units, it is not allowed to place equipment and equipment that are technologically and structurally not related to compressors.
Prospects and trends of green energy development
Authors: Krasovskaya Oksana , Barykina Julia , Shupletsov Aleksandr , Yanjie Zhang , Hanyu Wang
Published: June 2023

The article analyzes trends in the development of green energy. Green energy is the alternative form of energy. The advantage of green energy is due to the fact that it is generated from natural resources such as sunlight, wind, water, tides and biomass. Energy is considered green if the resource does not produce pollution or emit CO2 which causes the global warming. With the development of technologies, the efficiency of green energy generation increases, and the cost decreases. Due to the high availability of solar and wind types of energy, this industry is becoming more attractive and promising for commercial applications.
Applying wind energy for alternative energy efficiency
Authors: Turkova V.N. , Arkhipova A.N. , Zharkaya G.F. , Kuznetsova N.V. , Ardashev R.G.
Published: June 2023

This article looks at one way of harnessing inexhaustible energy - wind power. The relevance of the use of wind farms has been considered, which is due to many factors. The most important advantage of wind farms is the use of an inexhaustible source of energy, namely air currents, which are the result of pressure differences in the atmosphere. Although the modern energy industry is mainly based on non-renewable energy sources (oil, gas and hard coal account for about 80% of the global energy balance), interest in renewable energy sources (RES) is growing steadily. The main arguments for using RES are the high price of conventional fuels, energy security for the countries.
Project of basin nature management of the Vorskla River within the boundaries of Prokhorovsky district
Authors: Zheltukhina V. , Kulikova M. , Melentiev A. , Kolesnichenko E.
Published: June 2023

The Belgorod region, which occupies 0.2% of the country’s territory, is among the leading subjects of the Russian Federation in the production of agricultural products. The river network of the region has undergone significant changes: over the past century, its length has decreased by 35% from its original state. The noted trends in the development of degradation processes determine the need for geo-planning solutions to ensure the soil conservation organization of nature management in the Belgorod region. In the current situation, it is necessary to scientifically substantiate the transformation of agricultural landscapes into sustainable agroecosystems. At the same time, an integrated geoecological approach should be used to organize the landscape shell with a rational spatial combination of natural and economic components. This idea formed the basis of a new synthetic direction of socio-economic geography - geoplanning. The geoplanning approach will make it possible to implement the geoecological aspects of ecosystem functioning through a set of design solutions. The results of the research work on the project: certification of the natural and economic conditions of the Vorskla River basin within the boundaries of the Prokhorovsky district of the Belgorod region was carried out; measures for ecological improvement and rational economic use of river basins were developed, including measures for biologization of arable land, allocation of areas for natural self-restoration, a plan for rational economic and recreational use of water bodies was developed, optimal network of dirt roads; calculation of environmental, economic and social outcomes of the project; proposed organization of control and supervision over the progress of the project.
Study of Physico-Chemical Properties of Phosphorate Solutions
Authors: Shamshidinov Israiljan , Kambarov Asadjon , Najmiddinov Rikhsitilla , Rustamov Ilyos , Usmanov Ilkham , Samadiy Murodjon
Published: June 2023

The results of studies of the physicochemical properties of extraction phosphoric acids containing magnesium in the presence of ammonium nitrate are presented. A decrease in the heat of vaporization in the H3PO4-H2O system was found in the range of acid concentrations of 20-30% and 37-45% P2O5. At an acid concentration of 20, 35% and 45% P2O5 there is a minimum electrical conductivity, while at a concentration of 30 and 40% P2O5, the electrical conductivity of solutions reaches a maximum value at temperatures of 25-45%, which is explained by structural changes occurring in the acid during dissociation and dimerization, depending on the concentration. The electrical conductivity of the H3PO4-H2O system decreases with the introduction of magnesium sulfate and ammonium nitrate. The regularity of the thickening of magnesium-containing acid is substantiated.
Investigating the effect of different salts on the thermal efficiency of a solar pond device
Authors: Elmurodov N.S. , Uzakov G.N. , Khatamov I.A. , Tilavov Yu.S.
Published: June 2023

This article describes an experimental method for determining the physicochemical properties of NaCl, MgCl2, and KCl salts to establish a salinity gradient in an experimental solar pond located at Karshi engineering-economics institute. During the experiments, separate brine solutions of each salt were prepared in the solar pond device in order to establish the density profile, concentration, and heat capacity of these salts. Based on the study of samples taken from different points of the pond, the density profile of each salt was studied and graphs were constructed. Using an adiabatic colorimeter made for the experiment, the heat capacities of each salt brine were studied in the temperature range of 20оС-70оС and at values of brine concentration of 5%-28%, and the change graphs at different temperatures were presented.
Geodetic monitoring of high-rise structures according to satellite determinations
Authors: Tran Thanh Son
Published: June 2023

The results of satellite determinations, the recalculation of geocentric coordinates into topocentric ones, and the technology for creating a reference network and its use for transmitting coordinates to mounting horizons are shown. The article compares the coordinates obtained from satellite determinations without taking into account the deviation of the plumb line with the data on the proposed technology. The results obtained indicate the effectiveness of using the topocentric coordinate system in assessing and monitoring horizontal displacements of high-rise structures. GNSS technology eliminates the disadvantages of traditional methods, especially with the use of plumb lines and sequential sectional measurements, in which errors accumulate. The accuracy of the proposed technology practically does not depend on the height of structures.
Research of fire resistance and physical-mechanical properties of secondary polyethylene
Authors: Nazarov F.F. , Beknazarov E.M. , Chuliev J.R. , Nazarov F.S. , Lutfullaev S.Sh.
Published: June 2023

This article provides information on a new type of filler used for secondary polyethylene and improving the fire resistance of secondary polyethylene. The article summarizes the physico-mechanical results of fillers, improves the properties of secondary PE, and creates the scientific basis for the production of composite materials with pre-planned properties.
Breeding effect of selection methods (population, seed, and single-plant) at seed sites of various genetic levels in the Volgograd region
Authors: Kryuchkov S.N. , Solonkin A.V. , Solomentseva A.S. , Egorov S.A. , Gorbushova D.A.
Published: June 2023

The article presents methods and results of selection of breeding material of Crimean pine (Pinus nigra subsp. pallasiana (Lamb.)., resistant to various stress factors. The original and promising cultivars for further use in breeding, introduction, competitive and production tests have been identified. With the help of hierarchical variance analysis, it was established that old-age plantings are a source of useful breeding traits and material for further breeding and genetic work.
Assessment of interregional differentiation of socio-economic development (on the example of the regions of Uzbekistan)
Authors: Khazratkulova Lola N.
Published: June 2023

The article attempts to generalize the theoretical interpretations of the concept of “interregional differentiation”, the essence of the theories of regional growth, determining the level of heterogeneity of the socio-economic space of Uzbekistan and the trends of regional development in the republic. The period of implementation of the Strategy of Actions of the Republic of Uzbekistan in five priority areas of development - 2017-2021 was adopted as the main period of the study. The practical significance of the study is to summarize the results of the implementation of the above-mentioned strategy by assessing the interregional differentiation of socio-economic development in the regions of Uzbekistan. The results of the study can be used in the system of strategic decision-making aimed at the sustainable development of the territories of the republic.
Mathematical models for the cutting stock with limited open stacks problem
Authors: Guimarães Gabriel Gazzinelli , Poldi Kelly Cristina
Published: June 2023

This research is focused on solving the Cutting Stock with Limited Open Stacks Problem (CS-LOSP). The CS-LOSP is an optimization problem which consists of the classical Cutting Stock Problem (CSP) paired with the additional constraint that the maximum number of open stacks from the sequencing of the cutting patterns obtained from the CSP solution is equal or lower than a preset limit. Despite being a problem with great practical importance, the literature lacks models for this problem, and only one-dimensional problems are addressed. In this paper, we propose two integer linear programming formulations for the CS-LOSP that are valid for solving instances of the CSP of any dimension. In order to eliminate symmetrical solutions to the problem, the proposed formulations sequence sets of cutting patterns instead of sequencing the cutting patterns individually, thus, the search space for solutions is reduced. A set of randomly generated instances for the two-dimensional problem is used to perform computational experiments in order to validate the proposed mathematical formulations.
Die ESC-Leitlinie 2022 zu ventrikulären Arrhythmien im internationalen Vergleich
Authors: Könemann Hilke , Eckardt Lars
Published: June 2023

Kürzlich veröffentlichte die Europäische Gesellschaft für Kardiologie die aktualisierte Leitlinie zu ventrikulären Arrhythmien und plötzlichem Herztod, die sich neben internationale
Empfehlungen amerikanischer und kanadischer Fachgesellschaften einreiht. Trotz großer gemeinsamer Basis zeigen sich in einigen Aspekten relevante Unterschiede: Die ESC-Leitlinie zeichnet
sich durch einen besonderen Schwerpunkt auf praxisnahen Übersichten und Algorithmen aus. Im Vergleich werden genetische Diagnostik und kardiale MRT aufgewertet. Im Akutmanagement stimmen
die internationalen Empfehlungen größtenteils überein. Im Langzeitmanagement bleibt die optimale Behandlung der Grunderkrankung essenziell. Die ESC-Leitlinie weist mit Einbeziehung
klinischer, genetischer und bildmorphologischer Kriterien den Weg zu einer noch individualisierteren Versorgung mit implantierbarem Kardioverter-Defibrillator (ICD). Der Stellenwert der
Katheterablation wird vor allem bei idiopathischen Arrhythmien und rezidivierenden Arrhythmien auf dem Boden einer koronaren Herzerkrankung (KHK) aufgewertet.
Update Breast Cancer 2023 Part 2 – Advanced-Stage Breast Cancer
Authors: Lux Michael P. , Hartkopf Andreas D. , Fehm Tanja N. , Welslau Manfred , Müller Volkmar , Schütz Florian , Fasching Peter A. , Janni Wolfgang , Witzel Isabell , Thomssen Christoph , Beierlein Milena , Belleville Erik , Untch Michael , Thill Marc , Tesch Hans , Ditsch Nina , Aktas Bahriye , Banys-Paluchowski Maggie , Kolberg-Liedtke Cornelia , Wöckel Achim , Kolberg Hans-Christian , Harbeck Nadia , Bartsch Rupert , Schneeweiss Andreas , Ettl Johannes , Würstlein Rachel , Krug David , Taran Florin-Andrei , Lüftner Diana , Stickeler Elmar
Published: June 2023

In recent years, a number of new therapies have led to advances in the treatment of patients with advanced breast carcinoma. These substances are mainly CDK4/6 inhibitors and other
substances that can overcome endocrine resistance, oral selective estrogen receptor degraders, antibody drug conjugates (ADCs), and PARP inhibitors. This review summarizes and evaluates
the latest study results that have been published in recent months. This includes the overall survival data of the Destiny-Breast03 study, the first analysis of the CAPItello-291 study,
the comparison of CDK4/6 inhibitor treatment with chemotherapy in the first line of therapy (RIGHT Choice study), the first analysis of the Destiny-Breast02 study in the treatment setting
after T-DM1 treatment, and the first analysis of the Serena-2 study.

Most of these studies have the potential to significantly change the therapeutic landscape for patients with advanced breast carcinoma and show that the continued rapid development of new
therapies is always producing new results.
Incidence of Stroke in People With Diabetes Compared to Those Without
Diabetes: A Systematic Review
Authors: Kvitkina Tatjana , Narres Maria , Claessen Heiner , Metzendorf Maria-Inti , Richter Bernd , Icks Andrea
Published: June 2023

Background One of the goals of the St. Vincent Declaration was to reduce
serious complications of diabetes, including strokes. However, it remains
uncertain whether this goal has been achieved. Study aim: To evaluate the
incidence of stroke in the diabetic population and its differences regarding
sex, ethnicity, age, and region, to compare the incidence rate in people with
and without diabetes, and to investigate time trends.

Materials and methods A systematic review was conducted according to the
guidelines for meta-analysis of observational studies in epidemiology (the MOOSE
group) and the PRISMA group guidelines.

Results Nineteen of the 6.470 studies retrieved were included in the
analysis. The incidence of stroke in the population with diabetes ranged from
238 per 100,000 person-years in Germany in 2014 to 1191 during the 1990s in the
United Kingdom. The relative risk comparing people with diabetes to those
without diabetes varied between 1.0 and 2.84 for total stroke, 1.0 and 3.7 for
ischemic stroke, and 0.68 and 1.6 for hemorrhagic stroke. Differences between
fatal and non-fatal stroke were significant, depending on the time period and
the population. We found decreasing time trends in people with diabetes and
stable incidence rates of stroke over time in people without diabetes.

Conclusion The considerable differences between results can partly be
explained by differences in study designs, statistical methods, definitions of
stroke, and methods used to identify patients with diabetes. The lack of
evidence arising from these differences ought to be rectified by new
studies.
Mixed Training Programs Applied to Young Soccer Players: Effects on
Speed-Power Abilities
Authors: Freitas Tomás T. , Pereira Lucas A. , Alcaraz Pedro E. , Azevedo Paulo H.S.M. , Zanetti Vinicius , Pantarotto Nuno B. , Reis Valter P. , Jeffreys Ian , Loturco Irineu
Published: June 2023

We compared the effects of two 4-week strength-power-speed training protocols on
physical performance of young soccer players. Twenty-three highly trained
under-20 soccer players were randomly allocated to two mixed-training groups: 1)
“traditional” (TRAD: n=11), comprising vertically
oriented strength-power exercises and linear sprints; or 2)
“multidirectional” (MULTI: n=12), combining vertically
and horizontally oriented strength-power exercises, linear sprints, and
change-of-direction (COD) drills. Squat jump (SJ) and countermovement jump, 2)
linear sprint, COD speed, and 3) jump-squat (JS) and hip-thrust (HT) power tests
were performed pre- and post-training. Differences were determined using a
two-way ANOVA with repeated measures and “target scores” were
used to detect real changes in performance. No group-time interactions were
found for any of the variables (p>0.05). Significant increases
(p<0.05) in 20-m sprint velocity, JS- and HT-power were found
in both groups, and in SJ in TRAD. Individual analyses revealed a greater number
of meaningful changes in zig-zag velocity in MULTI while most players in TRAD
displayed meaningful increases in SJ height. In conclusion, both training
protocols resulted in similar adaptations but, at the individual level, it
appears that MULTI protocol is superior to improve COD ability while TRAD should
be preferred to maximize vertical jumping capabilities during short soccer
pre-seasons.
Lessons from Mortality Reviews: Nonbiologic Contributors to Maternal Deaths
Authors: Minkoff Howard , Chazotte Cynthia , Nathan Lisa M.
Published: June 2023

Based on years of review and analysis of severe maternal morbidity and maternal mortality cases, it is clear that the high rates of maternal mortality in this country are due to more than obstetrical emergencies gone awry. Many nonmedical factors contribute to these poor outcomes including complex and ineffectual health care systems, poor coordination of care, and structural racism. In this article we discuss what physicians can and cannot accomplish on their own, the role of race and racism, and barriers built into the manner in which health care is delivered. We conclude that while obstetricians must continue to focus on the area where their expertise lies, reducing deaths by educating and training physicians to deal with the downstream consequences of upstream events, they must also focus increased attention on educating themselves and their trainees about the effect of racism, social disadvantage, and poor coordination of care on health, as well as their role in resolving these issues. Physicians must also reach out to their representatives in government to partner with them. Those leaders must recognize that when they hear about disparities in maternal mortality, focusing only on events in hospitals ignores the more dispositive issues that put Black women at risk in the first instance.

Key Points