bluuebunny/crossref_metadata_2025 huggingface dataset:
Membranes for the Removal of Endocrine Disrupting Compounds from Aqueous Environments
Authors: Said Khairul Anwar Mohamad , Sari Clara , Rahman Md Rezaur
Published: November 2024

The advancement of membranes especially equipped with membrane technology, photocatalysis and adsorptive material has attracted much attention from researchers. Several notable features which include chemical-resistant, recyclability, unique pore structure, excellent removal capabilities with a tunable band gap for photocatalysis, and high thermal, chemical, and mechanical characteristics, have offered new insight compared to traditional membranes. Endocrine-disrupting compounds (EDC) are categorized as emerging contaminants of concern that are capable of disrupting the endocrine hormone system at micro to nano concentrations. EDC can be found ubiquitously either in an industrial area or in domestic discharge, especially in wastewater treatment plants. Conventional water treatment systems that consist of primary and secondary treatment are not designed to remove EDC due to the persistence of these compounds. Hence, studies have shown that membrane technology, advanced oxidative processes (AOP), and adsorption are promising approaches to tackle EDC. Therefore, the incorporation of AOP materials and adsorbents in the membrane could improve its abilities to remove EDC. The introduction of particles in the membrane can be materialized by physical or chemical adsorption, encapsulation, interfacial polymerization, layer-by-layer assembly, and microencapsulation.
Aqueous degradability of water-soluble, thioester-containing polyacrylamides with UCST-type behaviour in salt solutions obtained by rROP
Authors: Neal Thomas J. , Nicolas Julien
Published: November 2024

Synthesis of water-soluble, thioester-containing polyacrylamide copolymers that efficiently degrade in aqueous solutions of sodium hydroxide, isopropylamine, l-cysteine, and household bleach.
A novel water-soluble NIR-II cyanine dye for fast targeted through-skull fluorescence imaging of orthotopic glioma
Authors: Wei Qian , Jia Huixian , Zhao Haoyuan , Tang Wei , Duan Xinrui
Published: November 2024

A novel water-soluble NIR-II cyanine dye was designed and synthesized for fast targeted through-skull fluorescence imaging of orthotopic glioma.
The decisive role of Au in CO diffusion on Pt surfaces: a DFT study
Authors: Reviglio Ana Lucía , Cappellari Paula S. , Soldano German J. , Mariscal Marcelo M. , Planes Gabriel A.
Published: November 2024

The results of this study provide compelling evidence that the presence of Au hinders the movement of CO towards highly reactive Pt sites.
Mechanistic studies of NOx reduction reactions involving copper complexes: encouragement of DFT calculations
Authors: Kametani Yohei , Shiota Yoshihito
Published: November 2024

Mechanistic analysis of nitrite (NO2−) and nitric oxide (NO) reduction reactions promoted by copper complexes provides a reliable view of electron transfer and atom movement.
Syntheses, structures and characterization of noncentrosymmetric MZnPO4 (M = K, NH4)
Authors: Zhao Jiawei , Wei Wei , Chen Meihui , Chen Yanna , An Donghai
Published: November 2024

Two phosphates, KZnPO4 and NH4ZnPO4, were successfully synthesized, and both structures show a three-way skeleton of isolated PO4 and ZnO4 tetrahedra. And NCS KZnPO4 and NH4ZnPO4 can exhibit SHG responses of 0.4 × KDP and 1 × KDP.
Cover matters: enhanced performance of a multistage solar evaporator with tuned optical and thermal cover properties
Authors: Li Shiteng , Liu Shang , Yang Qijun , Deng Shuai , Lin Meng
Published: November 2024

Designs and operating spaces were explored where silica aerogel covers could be substituted with film (n = 1, 1 sun) or acrylic (n = 10, 3 suns) covers, which are cost-effective, durable materials that do not compromise the performance of the multistage solar evaporator device.
A monolithic Co–FeCo8S8 electrode for a stable anion exchange membrane water electrolyzer driven by a fluctuating power supply
Authors: Khan Jahangir , Liu Heming , Zhang Tianhao , Kang Xin , Zhang Zhiyuan , Dong Yuxiao , Li Shanlin , Liu Jiarong , Yu Qiangmin , Liu Bilu
Published: November 2024

A monolithic Co–FeCo8S8 electrode shows robust water electrolysis owing to its strong interfacial bonding and barrier-free charge transfer. The electrolyzer showed rapid response and stable operation when coupled with fluctuating solar electricity.
Multitasking rhodium-catalyzed remote C(sp3)–H functionalization reactions of acyclic dienes to yield benzene-fused heterocycles
Authors: Sato Yuta , Nagafuchi Momoko , Takatsuki Masaharu , Matsuzaki Tsuyoshi , Suzuki Takeyuki , Sako Makoto , Arisawa Mitsuhiro
Published: November 2024

Remote C(sp3)–H bond functionalization reactions are environmentally benign methods for not only acyclic molecules but also cyclic molecules, 2,3-disubstituted dihydrobenzofurans.
3-Thio-3,4,5-trisubstituted-1,2,4-triazoles: high affinity somatostatin receptor-4 agonist synthesis and structure–activity relationships
Authors: Crider A. Michael , Hospital Audrey , Sandoval Karin E. , Neumann William L. , Kukielski Stephen , Garic Lejla , Ingold Kristen , Dunahoo Matthew , Srabony Khush N. , Frare Rafael , Slater Olivia , Peel Nathan , Kontoyianni Maria , Witt Ken A.
Published: November 2024

3-Thio-3,4,5-trisubstituted-1,2,4-triazole somatostatin receptor-4 agonist SAR.
Exsolution of Fe, Co, and Ni supported catalysts from LaBO3 (B = Fe, Co, Ni) perovskites for ammonia synthesis
Authors: Zhou Nan , Kong Fanyi , Tang Ya
Published: November 2024

As the ammonia synthesis reaction proceeded, we observed a clear kinetic process distinction between the different metals.
Fe3O4@C magnetite nanocomposite: an artificial peroxidase nanozyme for the development of a colorimetric glucose biosensor
Authors: Tran Hoang V. , Nguyen Nghia D. , Le Anh-Tuan , Tran Luyen T. , Le Thu D. , Huynh Chinh D.
Published: November 2024

The synthesized Fe3O4@C nanozyme with strong peroxidase-like catalytic activity were prepared. It was used to replace the HRP for fabrication of a colorimetric chemical H2O2 sensor and glucose biosensor with a LoD 20 μM and 40 μM, respectively.
Size and shape matter for micellar catalysis using light-responsive azobenzene surfactants
Authors: Blayo Camille , Jones Beatrice E. , Bennison Michael J. , Evans Rachel C.
Published: November 2024

We show that the reaction conversion efficiency of a Claisen–Schmidt aldol condensation under micellar conditions in water is controlled by the shape and size of the micelle nanoreactors.
The genetic and molecular basis of a connexin-linked skin disease
Authors: Lucaciu Sergiu A. , Laird Dale W.
Published: November 2024

Erythrokeratodermia variabilis et progressiva (EKVP) is a rare hereditary skin disorder characterized by hyperkeratotic plaques and erythematous patches that progressively worsen with age. This disorder has been associated with variants in three connexin encoding genes (GJA1, GJB3, GJB4) and four unrelated genes (KRT83, KDSR, TRPM4, PERP). Most cases of connexin-linked EKVP exhibit an autosomal dominant mode of inheritance, with rare autosomal recessive cases. Collectively, evidence suggests that connexin variants associated with EKVP elicit a plethora of molecular defects including impaired gap junction (GJ) formation, dysregulated hemichannel and/or GJ channel function, cytotoxicity, dominant disruption of co-expressed connexins, and/or altered turnover kinetics. Here, we review the progress made in understanding the genetic and molecular basis of EKVP associated with connexin gene variants. We also discuss the landscape of treatment options used for this disorder and the future directions for research into this rare condition.
Advances in the molecular understanding of GPCR-arrestin complexes
Authors: Petrovic Ivana , Grzesiek Stephan , Isaikina Polina
Published: November 2024

Arrestins are essential proteins for the regulation of G protein-coupled receptors (GPCRs). They mediate GPCR desensitization after the activated receptor has been phosphorylated by G protein receptor kinases (GRKs). In addition, GPCR-arrestin interactions may trigger signaling pathways that are distinct and independent from G proteins. The non-visual GPCRs encompass hundreds of receptors with varying phosphorylation patterns and amino acid sequences, which are regulated by only two human non-visual arrestin isoforms. This review describes recent findings on GPCR-arrestin complexes, obtained by structural techniques, biophysical, biochemical, and cellular assays. The solved structures of complete GPCR-arrestin complexes are of limited resolution ranging from 3.2 to 4.7 Å and reveal a high variability in the relative receptor-arrestin orientation. In contrast, biophysical and functional data indicate that arrestin recruitment, activation and GPCR-arrestin complex stability depend on the receptor phosphosite sequence patterns and density. At present, there is still a manifest lack of high-resolution structural and dynamical information on the interactions of native GPCRs with both GRKs and arrestins, which could provide a detailed molecular understanding of the genesis of receptor phosphorylation patterns and the specificity GPCR-arrestin interactions. Such insights seem crucial for progress in the rational design of advanced, arrestin-specific therapeutics.
Secrecy outage probability of IRS‐aided VLC systems with power splitting
Authors: Zhao Xiang , Zhang Xinyuan , Liu Maoyu , Sun Jinyong
Published: November 2024

An intelligent reflecting surface (IRS)‐aided visible light secure communication system is investigated. In order to improve its security performance, a power splitting scheme is adopted at the light‐emitting diodes. In contrast to most current research on the physical‐layer security in IRS‐aided visible light secure communication systems where secrecy rate or secrecy capacity maximization problems subject to various resource constraints were formulated, this letter takes the reliability of secure transmission into account. The closed‐form expression of secrecy outage probability is derived based on the statistical characteristics of the signal‐to‐noise ratio of the legitimate user, and the effects of light‐emitting diodes and IRS parameters and power splitting ratio on the secrecy outage probability are validated through simulations.
A collaborative planning of PCCs siting and transmission network expansion for super large‐scale offshore wind clusters
Authors: Ling Jingwen , Bian Xiaoyan , Yang Yue , Xu Ling , Zhang Mengyao , Liu Zhong
Published: November 2024

The integration of super large‐scale offshore wind clusters into the onshore power grid brings challenges for the flexibility of the transmission network. Therefore, this paper proposes a two‐stage collaborative planning of points of common coupling siting and transmission network expansion for super large‐scale offshore wind clusters, based on a multi‐voltage‐level stratified integration mode which enables offshore wind power to transmit to larger regions for accommodation. At first, the transmission network flexibility indexes are established. Then, a two‐stage collaborative planning model for points of common couplings siting and transmission network expansion is proposed, which comprises a collaborative planning model and an optimal power flow operation model. The proposed model reduces wind curtailment and load shedding by optimizing the annual total cost and flexibility transmission capability of the network. Finally, the effectiveness of the proposed method is verified using a modified IEEE 30‐bus system and a 65‐bus system.
High-resolution imaging of the evolving bipolar outflows in symbiotic novae: The case of the RS Ophiuchi 2021 nova outburst
Authors: Lico R. , Giroletti M. , Munari U. , O’Brien T. J. , Marcote B. , Williams D. R. A. , Yang J. , Veres P. , Woudt P.
Published: November 2024

Context. The recurrent and symbiotic nova RS Ophiuchi (RS Oph) underwent a new outburst phase during August 2021, about 15 years after the last event that occurred in 2006. This outburst represents the first nova event ever detected at very high energies (VHE, E > 100 GeV), and a whole set of coordinated multiwavelength observations were triggered by this event.

Aims. The main goals of this work are to characterize the evolving morphology of the expanding bipolar ejecta with high accuracy and to determine the physical conditions of the surrounding medium in which they propagate.

Methods. By means of high-resolution very long baseline interferometry (VLBI) radio observations, we monitored RS Oph with the European VLBI Network (EVN) and e-MERLIN at 1.6 and 5 GHz during multiple epochs from 14 to 65 days after the explosion.

Results. We reveal an evolving source structure consisting of a central and compact core and two elongated bipolar outflows expanding on opposite sides of the core in the east-west direction. The ejecta angular separation with time is consistent with a linear expansion with an average projected speed of ∼7000 km s−1. We find clear evidence of a radial dependence of the density along the density enhancement on the orbital plane (DEOP), going from 1 × 107 cm−3 close to the central binary to 9 × 105 cm−3 at ∼400 AU.

Conclusions. Thanks to the accurate source astrometric position provided by Gaia DR3, in this work we draw a detailed scenario of the geometry and physics of the RS Oph evolving source structure after the most recent nova event. We conclude that most of the mass lost by the red giant companion goes into the DEOP, for which we estimate a total mass of 6.4 × 10−6 M⊙, and into the circumstellar region, while only a small fraction (about one-tenth) is accreted by the white dwarf.
The SOFIA Massive (SOMA) Star Formation Q-band follow-up
Authors: Taniguchi Kotomi , Gorai Prasanta , Tan Jonathan C. , Gómez-Garrido Miguel , Fedriani Rubén , Yang Yao-Lun , Tirupati Kumara Sridharan , Tanaka Kei E. I. , Saito Masao , Zhang Yichen , Morgan Lawrence , Cosentino Giuliana , Law Chi-Yan
Published: November 2024

Context. Evidence that the chemical characteristics around low- and high-mass protostars are similar has been found: notably, a variety of carbon-chain species and complex organic molecules (COMs) form around both types. On the other hand, the chemical compositions around intermediate-mass (IM) protostars (2 M⊙ < m* < 8 M⊙) have not been studied with large samples. In particular, it is unclear the extent to which carbon-chain species form around them.

Aims. We aim to obtain the chemical compositions of a sample of IM protostars, focusing particularly on carbon-chain species. We also aim to derive the rotational temperatures of HC5N to confirm whether carbon-chain species are formed in the warm gas around these stars.

Methods. We conducted Q-band (31.5–50 GHz) line survey observations toward 11 mainly IM protostars with the Yebes 40 m radio telescope. The target protostars were selected from a subsample of the source list of the SOFIA Massive Star Formation project. Assuming local thermodynamic equilibrium, we derived the column densities of the detected molecules and the rotational temperatures of HC5N and CH3 OH.

Results. Nine carbon-chain species (HC3N, HC5N, C3H, C4H linear-H2CCC, cyclic-C3H2, CCS, C3S, and CH3CCH), three COMs (CH3OH, CH3CHO, and CH3CN), H2CCO, HNCO, and four simple sulfur-bearing species (13CS, C34S, HCS+, and H2CS) are detected. The rotational temperatures of HC5N are derived to be ~20–30 K in three IM protostars (Cepheus E, HH288, and IRAS 20293+3952). The rotational temperatures of CH3OH are derived in five IM sources and found to be similar to those of HC5N.

Conclusions. The rotational temperatures of HC5N around the three IM protostars are very similar to those around low- and high-mass protostars. These results indicate that carbon-chain molecules are formed in lukewarm gas (~20–30 K) around IM protostars via the warm carbon-chain chemistry process. Thus, carbon-chain formation occurs ubiquitously in the warm gas around protostars across a wide range of stellar masses. Carbon-chain molecules and COMs coexist around most of the target IM protostars, which is similar to the situation for low- and high-mass protostars. In summary, the chemical characteristics around protostars are the same in the low-, intermediate- and high-mass regimes.
Hints of auroral and magnetospheric polarized radio emission from the scallop-shell star 2MASS J05082729–2101444
Authors: Kaur Simranpreet , Viganò Daniele , Béjar Víctor J. S. , Sánchez Monge Álvaro , Morata Òscar , Kansabanik Devojyoti , Miquel Girart Josep , Carlos Morales Juan , Anglada-Escudé Guillem , Murgas Felipe , Shan Yutong , Ilin Ekaterina , Pérez-Torres Miguel , Zapatero Osorio María Rosa , Amado Pedro J. , Caballero José A. , Del Sordo Fabio , Palle Enric , Quirrenbach Andreas , Reiners Ansgar , Ribas Ignasi
Published: November 2024

Scallop-shell stars, a recently discovered class of young M dwarfs, show complex optical light curves that are characterized by periodic dips as well as other features that are stable over tens to hundreds of rotation cycles. The origin of these features is not well-understood. 2MASS J05082729−2101444 is a ∼25 Myr old scallop-shell star that was identified using TESS data; it has a photometric period of 6.73 h that has been attributed to rotation. Of the ∼50 recently confirmed scallop-shell stars, it is one of the few detected at radio frequencies between 1 and 8 GHz. We observed this rare system with the upgraded Giant Meterwave Radio Telescope at 575–720 MHz, covering 88% of the photometric period in each of the two observations scheduled almost a month apart in 2023. We detected approximately millijansky emission from the target in both epochs, with a significant circular polarization fraction: |V/I|∼20 − 50%. The 3.5-minute phase-folded light curves show unique variability in circular polarization. We detected an approximately hour-long helicity reversal during both epochs, and the reversals had similar amplitudes, lengths, and (possibly) occured at similar phases. These results suggest two emission components: The first is a persistent, moderately polarized component possibly ascribable to gyro-synchrotron emission driven by centrifugal breakout events. The second is a highly polarized, short burst-like component that is likely due to an electron cyclotron maser (ECM); it is indicative of auroral emission and is potentially responsible for the helicity reversal. To explain this, we discuss the different origins of the plasma responsible for the radio emission, including the possibility that the occulting material is acting as a plasma source. Future coordinated multifrequency radio and optical observations can further constrain the underlying scenario, as well as the magnetic geometry of the system, if we assume an ECM-like auroral emission.
Isolation and Characterization of α-Cellulose From Beluntas Leaves (Pluchea IndicaL.) Residue as Source of Microcrystalline Cellulose
Authors: Lestari Yulianita Pratiwi Indah , Mi’rajunnisa  , Rahmawati
Published: November 2024

Microcrystalline cellulose (MCC) is one of the pharmaceutical ingredients that is imported it is used as a binder in the manufacture of tablet drugs. The residue of Beluntas (Pluchea indica L) leaf extract is rarely used. This study aims to find out whether α-cellulose from beluntas leaf residue can be hydrolyzed into MCC and the characteristics of the MCC. α-cellulose was isolated using the Kraft method, then chemically hydrolyzed using 3.5 N HCl to obtain microcrystalline cellulose. Qualitative analysis of MCC includes organoleptic test, precipitation reaction using zinc chloride, and FTIR while physical evaluation includes pH and solubility. The α-cellulose obtained was 28.63 g from 150 g with a yield of 19.09%, while the MCC produced was 8.41 g (88.08%). Qualitative analysis of MCC from the residue of blunts leaf has shown similarity with the reference (Avicel PH 101). At the same time, the pH and solubility fulfilled the requirements of The United States Pharmacopoeia 2007. α-cellulose of Beluntas residue can be used for MCC preparation with the similar. Based on the qualitative analysis MCC from the residue of beluntas leaf has shown similar characteristics to reference (Avicel PH 101).
Optimization and Formulation of Skin Lotion Contating Butterfly Pea (Clitoria ternatea) Flower Extract and Study on its Antioxidant Activity
Authors: Wikantyasning Erindyah Retno , Wahyuni Tianur Tri
Published: November 2024

Butterfly pea flower is rich in phenolic and flavonoid antioxidants that protect the skin from free radicals, which can lead to oxidative damage. This study aimed to optimize a lotion formulation containing butterfly pea flower extract (BPFE), using triethanolamine (TEA) and stearic acid as emulsifiers, and to evaluate its antioxidant activity. Eight lotion formulations were prepared using the Simplex Lattice Design method (Design Expert v13.0), focusing on optimizing the stearic acid to TEA ratio. Antioxidant activity was measured using DPPH (2,2-diphenyl-1picrylhydrazyl) at a wavelength of 516 nm. Key parameters such as spreadability, adhesion, pH, and viscosity were assessed. The maceration method yielded BPFE with a 49.66% extraction efficiency. The optimized formulation demonstrated a spreadability of 6.26±0.38 cm, adhesion of 3.2±0.2 s, a pH of 7.19±0.005, and a viscosity of 120 dPas. Both BPFE and the optimized lotion formulation exhibited strong antioxidant activity, with IC50 values of 59.87±0.802 µg/ml and 84.52±1.418 µg/ml, respectively. The optimized BPFE lotion formulation presents promising potential for development as a cosmeceutical product.
Integrating Mid-Hijri Wet Cupping Therapy into Hypertension Treatment: A Quasi-Experimental Approach to Complementary Therapy
Authors: Octavia Mega , Maziyyah Nurul , Safitri Elma
Published: November 2024

Complementary therapy has recently gained popularity in several countries, with some therapies widely used for disease prevention and treatment. Blood cupping is one such complementary therapy for hypertension. According to hadith, the optimal time for blood cupping is during the mid-Hijri months to manage blood pressure. This study aims to assess the effect of blood cupping performed during mid-Hijri months on hypertension outcomes. A quasi-experimental design with a one-group pretest-post-test approach was used. Samples were selected by purposive sampling. The study was conducted at a private clinic in Yogyakarta, Indonesia, involving 13 patients. Blood cupping therapy was administered twice: at the beginning and middle of the Hijri month. Outcomes were measured by changes in blood pressure. Paired Ttests compared blood pressure before and after cupping treatment. Results showed significant blood pressure changes with cupping at the beginning of Hijri (p-value of 0.004) and mid-Hijri (p-value of 0.000). Both treatments significantly reduced blood pressure, with average reductions of 9 mmHg for the beginning of Hijri and 7 mmHg for mid-Hijri. Thus, blood cupping therapy at the beginning of Hijri was more effective than at mid-Hijri.
Biopolymeric materials with Moringa oleifera encapsulated essential oils, an innovative alternative to soft tissue wounds regeneration
Authors: Gheorghita Roxana , Soldanescu Iuliana
Published: November 2024

Nowadays, the focus on developing materials with superior properties to those already known is of great interest. Biopolymers have demonstrated excellent properties and, due to their renewability, non-toxicity, non-allergenicity, and non-immunogenic nature, have become increasingly used in medical applications. Moreover, because of their ability to form a complex matrix, they allow for the prolonged and controlled release of encapsulated substances. This study aimed to develop wound dressings made from sodium alginate and Moringa oleifera essential oil, a plant known since ancient times for its exceptional regenerative properties. To prevent the degradation of the essential oil, it was entrapped in sodium alginate-based capsules. Tested for physicochemical, mechanical, solubility, and microbiological evaluation, the materials are suitable for use as dressings for mild, superficial wounds. Future research involves testing on cell lines and in vitro blood coagulation tests.
Implementing Circular economy practices in organic farms, in North Greece. Present status and recommendations for advancement
Authors: Marnasidis Symeon , Kesisoglou Ilias , Verikouki Efstathia
Published: November 2024

Despite facing numerous challenges since the early 1990s, Greek organic farming has managed to expand its cultivated areas and establish itself as an economically viable production system. Various organic production practices, help farmers to achieve a circular flow of materials and resources. This study focuses on exploring the level of adoption of Circular Agriculture (CA) practices from Greek organic farms, assessing the effect of four primary barriers to their adoption, while also proposing strategies for further development. The expert’s opinions survey showed that Organic agricultural practices, enable Greek organic farmers to attain a moderate level of circular flow of materials and resources, with significant potential for further improvement. Critical steps towards embracing the concept of circularity, include promoting applied research and establishing a knowledge network about compatible CA practices, strengthening organic agricultural cooperative schemes and establishing renewable energy systems on organic farms. Agricultural subsidies, could also support the adoption of rarely applied CA practices. Our findings could serve as a valuable foundation for exploring the relationship between Greek organic farming and circular agriculture. This study also highlights several knowledge gaps in adopting innovative CA practices under the Greece farming conditions and thus providing insightful information for policy making on CA.
Bibliometric Analysis of Sources for Nature Based Solutions, Building Integrated and Green Systems and Green Roofs
Authors: Bekou Evangelia , Matsouki Niki , Zervas Efthimios
Published: November 2024

The objective of this study is to analyse the scientific production of “Nature Based Solutions”, “Building Integrated and Green Systems” and “Green Roofs”, collected with Scopus database. The bibliometric analysis was performed for the Number of Publications and Citations per Year, the Document and Source Type, the Source Title, the Affiliation, the Country, the Scientific Field and the Keywords used. The majority of the relative works published during the last decade concern Green Roofs (GR, 52% of the works), and Nature Based Solutions (NBS, 44% of the works), and only 4% deal with Building Integrated and Green Systems (BIGS). Key findings feature United States and United Kingdom as the main contributors in all those three areas, while China’s interest in the areas of GR and BIGS is constantly increasing during last years. The results show that the major Scientific Field in NBS and GR is the Environmental Science, while in BIGS is Engineering. The keyword analysis reveals that all three subject areas are investigating the impact on climate change, carbon dioxide emission and sequestration, water conservation, environmental impact and management, sustainable development and urban planning.
Improving regional energy security assessment criteria in the republic of Uzbekistan
Authors: Uktamov Khusniddin , Abdullayeva Shakhnoza , Rejapov Xayrillo , Mambetjanov Kakhramon , Imomov Jamshidxon
Published: November 2024

Energy security is a critical aspect of sustainable development and economic stability, particularly in regions undergoing rapid industrialization and modernization. This article aims to address the need for improved regional energy security assessment criteria in the Republic of Uzbekistan, a country experiencing significant economic growth and energy demand. The current framework for energy security in Uzbekistan is evaluated, highlighting key challenges such as energy supply reliability, diversification of energy sources, and infrastructure resilience. Through a comparative analysis of global best practices, the article proposes a set of enhanced criteria tailored to Uzbekistan’s unique geographical and economic conditions. These include improving the efficiency of energy distribution, incorporating renewable energy sources, fostering regional cooperation, and strengthening the regulatory framework to ensure long-term sustainability. The recommended criteria provide a more comprehensive approach to assessing and enhancing energy security in Uzbekistan, ensuring that the country can meet its future energy needs while minimizing environmental impact and economic vulnerabilities.
Synthesis and Characterization of Ultralong Co-Doped SnO₂ Nanowires
Authors: Rozhdestvenskiy Oleg Igorevich , Prasanna Javvadi Lakshmi , Haindavi Ponguvala , Bisht Manbir Singh , Ghumman Sukhman , Sharma Rajeev , Sharma Amit
Published: November 2024

The synthesis of ultralong, low-diameter, and uniform nanowires holds significant promise for integrating multiple devices within a single structure. In this study, a hydrothermal synthesis method was employed to grow ultralong Co-doped SnO₂ nanowires. The reaction conditions, including temperature, concentration of precursors, and the introduction of Co as a dopant, were optimized for producing high-aspect-ratio, crystalline nanowires. These nanowires were then characterized for their structural and electrical properties, and their potential for gas sensing and photocatalytic applications was explored. The results suggest that Co-doped SnO₂ nanowires could play a crucial role in future nanodevice applications.
Comparative Synthesis of Copper Nanoparticles Using Various Reduction Methods: Size Control, Stability, and Environmental Considerations
Authors: Aleksandrovskiy Maxim , Raju Y. Kamala , Vempada Srinivasa Reddy , Joshi Ankita , Singh Dhiraj , Bhalla Lalit , Singh Amanveer , Mohan Chander
Published: November 2024

The present work investigates three strategies for the production of copper nanoparticles (CuNPs): sodium borohydride reduction, ascorbic acid reduction, and reduction without reducing agent. Analyzed were the size distribution, stability, and ecological sustainability potential of the produced nanoparticles. The sodium borohydride reduction method yielded the most uniform and diminutive nanoparticles, with an average diameter of 8 ± 2 nm. This characteristic made it the optimal selection for applications necessitating meticulous control of dimensions, such as in the fields of electronics and catalysis. Although the reduction of ascorbic acid resulted in the formation of considerably bigger nanoparticles measuring 15 ± 5 nm, it provided a much more environmentally friendly manufacturing approach that was well-suited for biological applications. Although the experiments showed that stabilizers might be advantageous in lowering copper ions, the technique without a reducing agent produced the biggest and least consistent nanoparticles, measuring 25 ± 8 nm. The results indicate that modulating the size of nanoparticles incurs both advantages and disadvantages. Among the options considered, sodium borohydride offers the most consistent size distribution, although ascorbic acid is the most environmentally friendly. For the purpose of enhancing particle stability and improving nanoparticle production, future study should investigate more environmentally friendly reducing agents and optimize reaction parameters.
Improving Mechanical Properties of Poly(ethylene oxide) Composites Using RAFT-Modified SiO₂ Nanoparticles
Authors: Linkov Nikolay , Krishna PVVSSR , Prasad Garapati Venkata Sai , Jugran Sudhir , Punia Ankit , Kumar Suresh , Kundra Danish , Goyal Anju
Published: November 2024

The objective of this work was to examine the impact of conventional and RAFT-modified SiO₂ nanoparticles on the mechanical characteristics and crystallinity of poly(ethylene oxide) (PEO) composites. Preparation of PEO composites included the incorporation of 5 wt% of both unaltered SiO₃ and SiO₃ that had been changed via reversible addition-fragmentation chain transfer (RAFT) polymerization. We assessed the mechanical characteristics, such as strain at fracture, ultimate tensile strength, and Young’s modulus. The inclusion of unaltered SiO₂ decreased the strain at fracture (570 ± 18%) and ultimate tensile strength (22.5 ± 0.8 MPa) in comparison to pure PEO (850 ± 25%, 32.0 ± 1.2 MPa). Nevertheless, the inclusion of RAFT-modified SiO₂ led to improved tensile characteristics, including a strain at break of 800 ± 30%, ultimate tensile strength of 35.2 ± 2.5 MPa, and Young’s modulus of 260 ± 13 MPa. The effective dispersion of RAFT- modified SiO₂ in the PEO matrix was verified by X-ray diffraction (XRD), leading to enhanced mechanical characteristics. This research points that the using the RAFT polymerization to alter the surface of nanoparticles is a good strategy to enhance the efficiencies of PEO composite for potential application in versatile electronics, membranes and other polymers technologies.
Predict the modelling of electro chemical machining parameters for AA5083/MoS2 composites using Levenberg–Marquardt algorithm
Authors: Rao N. Srinivasa , Renish R. Rohith , Kanna S K Rajesh , Teja Chinnam Durga Jaya , Subbiah Ram , Jetly Mahesh
Published: November 2024

ECM is widely regarded as a highly promising and cost-effective manufacturing technique, especially for processing hard-to-machine materials that are challenging to shape using conventional methods. The machining operations were carried out using an ECM machine with a working voltage range of 0.6 to 1.0 V and a feed rate between 15 and 25 mm/min. A copper electrode was employed alongside an NaCl electrolyte solution for calculating material removal rate on AA5083/MoS2 composites. The Highest MRR is observed when voltage 1.0 V, feed rate 25 mm/min and Electrolyte Concentration 400 g/Lit. To improve the accuracy of the predicted output responses, an artificial neural network (ANN) model was designed using the Levenberg-Marquardt algorithm. The structure with a configuration of 3–10–1, confirmed strong regression fit outcomes, The overall correlation coefficients (R) calculated at 0.96348, confirmed a high level of consistency between the experimental data and the predicted value.
Effect of Aramid Fiber reinforced polymer and Carbon Fiber reinforced polymer Wrappings on the Mechanical Properties of M30 Concrete
Authors: P Gnanamoorthy , Venkatesh Butti , Rajesh D. , Rao Vittel , Subbiah Ram , Dhawan Aanchal
Published: November 2024

Fiber-reinforced polymer is an advanced composite material composed of fibers and resin. It is a cost-effective and efficient material for repairing both existing and new structures. Additionally, these composite materials exhibit exceptional mechanical properties, including strength, Impact resistance, stiffness, load-bearing capacity and flexibility. This experimental research aims to investigate the behaviour of AFRP and CFRP materials wrapped in different layers when subjected to mechanical and non- destructive testing. Concrete confirming to the M30 grade is used for this experimental study. To ensure consistent concrete quality throughout the study, various test specimens were cast and subjected to standard tests, including compression tests, split tensile tests, modulus of rupture, modulus of elasticity, and impact tests on hardened concrete. Additionally, Rebound hammer and UPV test are two important NDT methods used to determine the quality of concrete. The tests were conducted using various specimens, including cubes (150mmx150mm), cylinders (150mmx300mm), prisms (100mmx100mmx500mm), and discs (63.5mm x 152.4mm). The experimental results indicate that concrete specimens confined with CFRP exhibit higher strength compared to those confined with AFRP and unconfined specimens, in both single and double ply wrappings.
Numerical approximation for stochastic nonlinear fractional diffusion equation driven by rough noise
Authors: Nie Daxin , Sun Jing , Deng Weihua
Published: November 2024

In this work, we are interested in building the fully discrete scheme for stochastic fractional diffusion equation driven by fractional Brownian sheet which is temporally and spatially fractional with Hurst parameters H1, … , Hd+1 ∈ (0, ½] and d = 1, 2. We first provide the regularity of the solution. Then we employ the Wong–Zakai approximation to regularize the rough noise and discuss the convergence of the approximation. Next, the finite element and backward Euler convolution quadrature methods are used to discretize spatial and temporal operators for the obtained regularized equation, and the detailed error analyses are developed. Finally, some numerical examples are presented to confirm the theory.
The Determinants of Ethical Judgments at Local Government Agencies
Authors: Lestari Adini , Saud Ilham Maulana
Published: November 2024

To ensure survival during the digital technologies’ transformation, an organization must pay attention to ethics implemented in the organization and its employees. Ethics supports transparency in financial and sustainability reporting, ensuring that information provided to stakeholders is accurate and honest. This study focuses on the determinants of ethical judgements in local government agencies. This study aims to examine the influence of educational qualification, current position, corporate ethical values, moral idealism, and moral relativism towards ethical judgments of the head and staff of accounting/finance division at local government agencies in South Sumatera. The subjects of this study are the head and staff of accounting/finance division at local government agencies in some regencies in South Sumatera. The samples consist of 100 respondents, selected using a purposive sampling method. The primary data were obtained by distributing questionnaires directly to the respondents. The data analysis used is Partial Least Square using SmartPLS version 3 as an analysis tool. The results of this study indicate that educational qualification and current position does not have significant influence towards ethical judgments. Meanwhile, corporate ethical values, moral idealism, and moral relativism have a positive influence towards ethical judgments.
Die Rechtsfrage: – Wie ist die Rechtslage bei der Behandlung von Kindern?
Authors: Schlegel Thomas
Published: November 2024

Darf ich in der Behandlung von Kindern beiden Erziehungsberechtigten alles über die Therapie erzählen oder gibt es hier Ausnahmen in Bezug auf die Schweigepflicht?

Therapeutin aus Sachsen
Unterschiede erkennen – Dyspraxie vs. UEMF
Authors: Neugebauer Erika
Published: November 2024

Kinder mit motorischen Auffälligkeiten kommen häufig mit einer Verordnung mit der Diagnose F82 „Umschriebene Entwicklungsstörung motorischer Funktionen“ (UEMF) in die Ergotherapie. In einigen Fällen verbirgt sich hinter der Diagnose allerdings eine Dyspraxie. Wie man zwischen beidem unterscheidet und warum das wichtig ist, erklärt Erika Neugebauer.
Den Stift sprechen lassen – Sketchnotes
Authors: Kaiser Katja Ayoka
Published: November 2024

Eine höhere Aufmerksamkeit, größere emotionale Beteiligung oder das Überwinden von Sprachbarrieren – einfache Strichzeichnungen als Ergänzung zur Sprache können erstaunliche Wirkungen entfalten. Ayoka Kaiser beschreibt, wie mit wenigen Strichen und ganz ohne Zeichentalent eine bereichernde Kommunikationsebene mit vielen Anwendungsmöglichkeiten entsteht.
Wohnsituation von Menschen mit schweren psychischen
Erkrankungen
Authors: Lamp Natalie , Breilmann Johanna , Becker Thomas , Allgöwer Andreas , Kilian Reinhold , Gühne Uta , Riedel-Heller Steffi G. , Hasan Alkomiet , Falkai Peter , Ajayi Klemens , Brieger Peter , Frasch Karel , Heres Stephan , Jäger Markus , Küthmann Andreas , Putzhammer Albert , Schneeweiß Bertram , Schwarz Michael , Kösters Markus
Published: November 2024

Ziel der Studie Psychisch erkrankte Menschen sollten selbstbestimmt in der
Gemeinde wohnen, es findet sich starke Evidenz für diese Wohnform. In dieser
Arbeit wurden die Wohnsituation von Menschen mit schweren psychischen
Erkrankungen, die Inanspruchnahme und der Bedarf an Versorgungsangeboten
analysiert.

Methodik Es wurden Daten einer Querschnittsstudie mit 397 Menschen mit
schweren psychischen Erkrankungen aus zwei bayerischen Bezirken verwendet und
deskriptiv ausgewertet.

Ergebnisse 70% der Betroffenen wohnen eigenständig. 6% leben im ambulant
oder stationär betreuten Wohnen. 25% der Betroffenen sind auf Hilfe beim Wohnen
angewiesen, wobei 39% hiervon nicht die nötige Hilfe erhalten. Die betreuenden
Wohnformen sind den meisten Betroffenen bekannt und wurden als hilfreich
empfunden.

Schlussfolgerung Die meisten Betroffenen leben in einer der
gesellschaftlichen Norm entsprechenden Wohnsituation. Dennoch besteht bei einem
Teil der Betroffenen ein ungelöstes Wohnproblem. Die Inanspruchnahme von
ambulant oder stationär betreutem Wohnen ist hilfreich, die Unterstützung wird
aber kaum genutzt.
Epidermoid Cyst with Bilateral Premedullary Involvement Resected from Left Far-Lateral Approach
Authors: Bialek Shannan , Zhao Xiaochun , Stevens Baylee , Bien Alexander , Graffeo Christopher S.
Published: November 2024

The patient is a 51-year-old woman with an epidermoid cyst extending bilaterally along the clivus and cerebellopontine angles from the level of the cisterna magna to the prepeduncular cistern. Her presenting symptoms included hearing loss, tinnitus, and imbalance for 4 months. Near-complete resection of the epidermoid cyst was achieved via a left far-lateral approach. The patient did well after the procedure with no new permanent cranial nerve deficits and unchanged or slightly improved preoperative deficits.
Studiendaten zum NSCLC: spannend, aber nicht praxisverändernd
Authors: Schöllmann Claudia
Published: November 2024

Der ESMO-Jahreskongress 2024 lieferte interessante Studiendaten zum nichtkleinzelligen Lungenkarzinom (NSCLC), die vor allem das Wissen zu vielversprechenden Medikamenten, deren Kombinationen und etablierten zielgerichteten Therapien sowie zu Resistenzmechanismen erweiterten.
Association between colonoscopy and colorectal cancer occurrence and mortality in the older population: a population-based cohort study
Authors: Lee Ji Young , Cha Jae Myung , Yoon Jin Young , Kwak Min Seob , Lee Hun Hee
Published: November 2024

We aimed to evaluate the association between colonoscopy and colorectal cancer (CRC) occurrence and related mortality in an older population.

This retrospective, nationwide, population-based cohort study used data of adults aged ≥40 years from the Health Insurance Review and Assessment Service database. After excluding colonoscopy within 6 months of CRC diagnosis during enrollment, CRC occurrence and related mortality were compared between colonoscopy and non-colonoscopy groups using a time-dependent Cox proportional hazard model. Subgroup analysis was conducted among four age groups: young, middle-aged, old, and very old.

Among 748986 individuals followed for 9.64 (SD 0.99) years, the colonoscopy group had a
65% lower CRC occurrence (adjusted hazard ratio [HRa] 0.35, 95%CI 0.32–0.38) and 76% lower
CRC-related mortality (HRa 0.24, 95%CI 0.18–0.31) after 5 years compared with the
non-colonoscopy group. Colonoscopy was associated with the most significant reduction in CRC
occurrence in the middle-aged group (HRa 0.32, 95%CI 0.29–0.35) and in CRC-related mortality
in the young group (HRa 0.04, 95%CI 0.01–0.33); the very old group had the least reduction
in both CRC occurrence and CRC-related mortality (HRa 0.44, 95%CI 0.33–0.59 and HRa 0.28,
95%CI 0.15–0.53, respectively).

We found a significant association between colonoscopy and reduction in CRC occurrence and CRC-related mortality in adults aged ≥40 years after 5 years of follow-up; however, these associations were weaker in the very old group. More research is needed on the association between colonoscopy and older age.
High-Flow Arteriovenous Malformations: Treatment Using a Venous Approach
Authors: Funaki Brian
Published: November 2024

High-flow arteriovenous malformations (AVMs) are among the rarest and most recalcitrant lesions in medicine. Patients with these anomalies are best managed longitudinally in tertiary referral centers by dedicated multidisciplinary teams that include surgeons, dermatologists, hematologists, geneticists, and interventional radiologists. A significant percentage of these lesions cannot be cured per se and intervention can worsen symptoms or preclude effective future embolization. Existing classification systems help guide treatment, but in nearly all cases, therapy must be individualized based on patient, symptoms, and lesion angioarchitecture. For various reasons, referral to tertiary centers may be impossible for some patients. The purpose of this article is to provide an approach to the evaluation and treatment of these abnormalities.
What the Interventional Radiologist Needs to Know about the Genetics of Vascular Anomalies
Authors: Josephs Shellie , Martin Lynne , Josephs Travis , Hovsepian David
Published: November 2024

The purpose of this article is to familiarize the reader with the basic genetics and vascular biology behind the array of vascular anomalies they may encounter in their practice. Individuals with vascular malformations are often referred to multidisciplinary clinics composed of diverse specialists all with the same goal: how to provide the best care possible. The team is typically composed of physicians, nurses, social workers, and technical staff from multiple specialties including diagnostic and interventional radiology, dermatology, hematology/oncology, otolaryngology, plastic surgery, and several additional subspecialties. Imaging plays a crucial role in diagnosis and treatment planning, but increasingly biopsies are needed for more accurate histopathological and genetic information to inform the plan of treatment, as well as for counseling patients and their families on the natural history, heritability, and long-term prognosis of the condition. Understanding the molecular mechanism that gives rise to vascular anomalies is crucial for arriving at the proper diagnosis and choosing among treatment options. As oncological medications are being increasingly repurposed to treat vascular malformations, it is vital for those caring for patients with vascular anomalies to understand how these anomalies develop, and which drug may be appropriate to repurpose for this benign disease.