keyword
https://read.qxmd.com/read/38656169/multivalent-ion-versus-proton-insertion-into-nanostructured-electrochromic-wo-3-from-mild-aqueous-electrolytes
#1
JOURNAL ARTICLE
Tom Rocca, Ari Gurel, Delphine Schaming, Benoît Limoges, Véronique Balland
Mild aqueous electrolytes containing multivalent metal salts are currently scrutinized for the development of ecosustainable energy-related devices. However, the role of soluble multivalent metal ions in the electrochemical reactivity of transition metal oxides is a matter of debate, especially when they are performed in protic aqueous electrolytes. Here, we have compared, by means of (spectro)electrochemistry, the reversible electrochromic reduction of transparent nanostructured γ-WO3 thin films in mild aqueous electrolytes of various chemical composition and pH...
April 24, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38654550/conversion-of-polypropylene-into-light-hydrocarbons-and-aromatics-by-metal-exchanged-zeolite-catalysts
#2
JOURNAL ARTICLE
Ozge Deniz Bozkurt, Hilal Ezgi Toraman
Polyolefins can be converted into C2 -C5 hydrocarbons and benzene-toluene-xylene (BTX) aromatics as high-demand petrochemical feedstocks via catalytic pyrolysis on acidic zeolites. Bro̷nsted and Lewis acid sites are responsible for cracking polyolefins into olefins and subsequent aromatic formation. In this study, we have subjected the parent HZSM-5 zeolite to postsynthetic partial metal exchange with Fe, Co, Ni, Cu, and Ce cations to perturb Bro̷nsted/Lewis acidity. We have investigated these metal-modified HZSM-5 on the catalytic pyrolysis of polypropylene (PP) in a micropyrolyzer connected to a two-dimensional gas chromatograph coupled to a time-of-flight mass spectrometer and flame ionization detector (Tandem Pyrolyzer-GC × GC-TOF-MS/FID setup)...
April 23, 2024: Langmuir: the ACS Journal of Surfaces and Colloids
https://read.qxmd.com/read/38639327/phosphotungstic-acid-as-a-dechlorination-agent-collaborates-with-ceo-2-for-synergistic-catalytic-elimination-of-no-x-and-chlorobenzene
#3
JOURNAL ARTICLE
Huiqian Yang, Aling Chen, Fuli Wang, Tianwei Lan, Jin Zhang, Xiaonan Hu, Yongjie Shen, Danhong Cheng, Dengsong Zhang
The development of efficient technologies for the synergistic catalytic elimination of NO x and chlorinated volatile organic compounds (CVOCs) remains challenging. Chlorine species from CVOCs are prone to catalyst poisoning, which increases the degradation temperature of CVOCs and fails to balance the selective catalytic reduction of NO x with the NH3 (NH3 -SCR) performance. Herein, synergistic catalytic elimination of NO x and chlorobenzene has been originally demonstrated by using phosphotungstic acid (HPW) as a dechlorination agent to collaborate with CeO2 ...
April 19, 2024: Environmental Science & Technology
https://read.qxmd.com/read/38623519/modeling-habitat-suitability-for-the-lesser-known-populations-of-endangered-mountain-nyala-tragelaphus-buxtoni-in-the-arsi-and-ahmar-mountains-ethiopia
#4
JOURNAL ARTICLE
Ejigu Alemayehu Worku, Paul H Evangelista, Anagaw Atickem, Afework Bekele, Jakob Bro-Jørgensen, Nils Chr Stenseth
Habitat suitability models have become a valuable tool for wildlife conservation and management, and are frequently used to better understand the range and habitat requirements of rare and endangered species. In this study, we employed two habitat suitability modeling techniques, namely Boosted Regression Tree (BRT) and Maximum Entropy (Maxent) models, to identify potential suitable habitats for the endangered mountain nyala ( Tragelaphus buxtoni ) and environmental factors affecting its distribution in the Arsi and Ahmar Mountains of Ethiopia...
April 2024: Ecology and Evolution
https://read.qxmd.com/read/38623452/typhoon-and-pollution-driven-enhancement-of-reactive-bromine-in-the-mid-latitude-marine-boundary-layer
#5
JOURNAL ARTICLE
Shanshan Wang, Qinyi Li, Ruifeng Zhang, Anoop Sharad Mahajan, Swaleha Inamdar, Nuria Benavent, Sanbao Zhang, Ruibin Xue, Jian Zhu, Chenji Jin, Yan Zhang, Xiao Fu, Alba Badia, Rafael P Fernandez, Carlos A Cuevas, Tao Wang, Bin Zhou, Alfonso Saiz-Lopez
Tropospheric reactive bromine is important for atmospheric chemistry, regional air pollution, and global climate. Previous studies have reported measurements of atmospheric reactive bromine species in different environments, and proposed their main sources, e.g. sea-salt aerosol (SSA), oceanic biogenic activity, polar snow/ice, and volcanoes. Typhoons and other strong cyclonic activities (e.g. hurricanes) induce abrupt changes in different earth system processes, causing widespread destructive effects. However, the role of typhoons in regulating reactive bromine abundance and sources remains unexplored...
April 2024: National Science Review
https://read.qxmd.com/read/38615488/optical-controlled-and-nuclear-targeted-cecr2-competitor-to-downregulate-csf-1-for-metastatic-breast-cancer-immunotherapy
#6
JOURNAL ARTICLE
Yi Cen, Ying Chen, Xinxuan Li, Xiayun Chen, Baixue Yu, Mengyi Yan, Ni Yan, Hong Cheng, Shiying Li
The crosstalk between breast cancer cells and tumor associated macrophages (TAMs) greatly contributes to tumor progression and immunosuppression. In this work, cat eye syndrome chromosome region candidate 2 (CECR2) is identified to overexpress in breast cancer patients, which can recognize v-rel avian reticuloendotheliosis viral oncogene homolog A (RelA) and activate nuclear factor κB (NF-κB) to release colony stimulating factor-1 (CSF-1). Pharmacological inhibition of CECR2 by the bromodomain competitor (Bromosporine, Bro) can downregulate CSF-1 to inhibit M2 type TAMs...
April 12, 2024: Biomaterials
https://read.qxmd.com/read/38604496/efficacy-of-patient-education-and-duloxetine-alone-and-in-combination-for-patients-with-multisystem-functional-somatic-disorder-study-protocol-for-the-edulox-trial
#7
JOURNAL ARTICLE
Cecilia Pihl Jespersen, Heidi Frølund Pedersen, Maria Kleinstäuber, Per Fink, Kaare Bro Wellnitz, Eva Ørnbøl, Andreas Schröder, Johanne Liv Agger, Lene Vase, Nanna Brix Finnerup, Lise Kirstine Gormsen
BACKGROUND: Multisystem functional somatic disorder is characterized by specific patterns of persistent physical symptoms with a complex biopsychosocial etiology. The disorder can lead to disability and personal suffering. Current treatment options require specialized settings, therefore patients often wait a long time to receive specific treatment. Patient education is considered important in most treatment programs, but has only been investigated sparsely as a stand-alone treatment...
April 9, 2024: Contemporary Clinical Trials
https://read.qxmd.com/read/38603640/who-supports-bernie-analyzing-identity-and-ideological-variation-on-twitter-during-the-2020-democratic-primaries
#8
JOURNAL ARTICLE
Stef M Shuster, Celeste Campos-Castillo, Navid Madani, Kenneth Joseph
Using a novel dataset of 590M messages by 21M users, we present the first large-scale examination of the behavior of likely Bernie supporters on Twitter during the 2020 U.S. Democratic primaries and presidential election. We use these data to dispel empirically the notion of a unified, stereotypical Bernie supporter (e.g., the "Bernie Bro"). Instead, our work uncovers significant variation in the identities and ideologies of Bernie supporters who were active on Twitter. Our work makes three contributions to the literature on social media and social movements...
2024: PloS One
https://read.qxmd.com/read/38591337/time-spent-outdoors-in-childhood-related-to-myopia-among-young-adults-in-the-swedish-abis-cohort
#9
JOURNAL ARTICLE
Tomas Bro, Johnny Ludvigsson
PURPOSE: Elucidate the prevalence of myopia among young adults from a birth cohort of Swedish children and its relationship to possible risk factors during their childhood. METHODS: Five thousand two hundred young adults, mean 23.4 years and 58% females, participating in the prospective birth cohort All Babies in Southeast Sweden (ABIS) answered a questionnaire including questions regarding health and physical activity, spectacle use, myopia and age at first optical correction...
April 9, 2024: Acta Ophthalmologica
https://read.qxmd.com/read/38585542/triple-a-syndrome-in-morocco-founder-effect-age-estimation-of-the-aaas-c-1331-1g-a-variant-and-implications-for-genetic-diagnosis
#10
JOURNAL ARTICLE
Karam Yahya Belmokhtar, Imane Cherkaoui, Saida Lhousni, Mounia Elidrissi Errahhali, Manal Elidrissi Errahhali, Majida Charif, Redouane Boulouiz, Meryem Ouarzane, Aziza Elouali, Ayad Ghanam, Abdeladim Babakhouya, Maria Rkain, Noufissa Benajiba, Mohammed Bellaoui
INTRODUCTION: Triple-A syndrome (Triple-A) is an autosomal recessive disorder characterized by alacrimia, achalasia, and adrenal insufficiency. Several variants on the AAAS gene have been described, and some variants are clustered in particular geographical areas, such as the c.1331+1G>A variant which is very frequent in North Africa. Here, we describe the genetic features of Triple-A in a series of unrelated families from Morocco. METHODS: Screening for the AAAS c...
March 2024: Molecular Syndromology
https://read.qxmd.com/read/38579994/underestimated-role-of-hydroxyl-radicals-for-bromate-formation-in-persulfate-based-advanced-oxidation-processes
#11
JOURNAL ARTICLE
Wanqi Xu, Congcong Ni, Ning Deng, Xin Huang
In persulfate-based advanced oxidation processes (PS-AOPs), sulfate radicals (SO4 •- ) have been recognized to play more important roles in inducing bromate (BrO3 - ) formation rather than hydroxyl radicals (HO• ) because of the stronger oxidation capacity of the former. However, this study reported an opposite result that HO• indeed dominated the formation of bromate instead of SO4 •- . Quenching experiments were coupled with electron paramagnetic resonance (EPR) detection and chemical probe identification to elucidate the contributions of each radical species...
April 3, 2024: Environmental Research
https://read.qxmd.com/read/38524477/intramolecular-friedel-crafts-reaction-with-trifluoroacetic-acid-synthesizing-some-new-functionalized-9-aryl-alkyl-thioxanthenes
#12
JOURNAL ARTICLE
Hakan Deniz, Tülay Yıldız, Hatice Başpınar Küçük
In this study, a series of halogen-substituted thioxanthenes were synthesized because the most important and biologically active derivatives of xanthenes are thioxanthenes. In order to obtain new thioxanthene derivatives, first, the starting molecules were synthesized by the appropriate reaction methods in two steps. The intramolecular Friedel-Crafts alkylation (FCA) method was used to convert the prepared three aromatic substituted starting alcohol compounds to their corresponding thioxanthenes by cyclization...
March 19, 2024: ACS Omega
https://read.qxmd.com/read/38516979/convergent-ab%C3%A2-initio-analysis-of-the-multi-channel-hobr-h-reaction
#13
JOURNAL ARTICLE
Ian T Beck, Mitchell E Lahm, Gary E Douberly, Henry F Schaefer
High-level potential energy surfaces for three reactions of hypobromous acid with atomic hydrogen were computed at the CCSDTQ/CBS//CCSDT(Q)/complete basis set level of theory. Focal point analysis was utilized to extrapolate energies and gradients for energetics and optimizations, respectively. The H attack at Br and subsequent Br-O cleavage were found to proceed barrierlessly. The slightly submerged transition state lies -0.2 kcal mol-1 lower in energy than the reactants and produces OH and HBr. The two other studied reaction paths are the radical substitution to produce H2O and Br with a 4...
March 28, 2024: Journal of Chemical Physics
https://read.qxmd.com/read/38513052/noncontact-in-situ-multidiagnostic-nmr-dielectric-spectroscopy
#14
JOURNAL ARTICLE
Alysson F Morais, Sambhu Radhakrishnan, Gavriel Arbiv, Dirk Dom, Karel Duerinckx, C Vinod Chandran, Johan A Martens, Eric Breynaert
Introduction of a dielectric material in a nuclear magnetic resonance (NMR) probe head modifies the frequency response of the probe circuit, a phenomenon revealed by detuning of the probe. For NMR spectroscopy, this detuning is corrected for by tuning and matching the probe head prior to the NMR measurement. The magnitude of the probe detuning, "the dielectric shift", provides direct access to the dielectric properties of the sample, enabling NMR spectrometers to simultaneously perform both dielectric and NMR spectroscopy...
March 21, 2024: Analytical Chemistry
https://read.qxmd.com/read/38501369/modulation-of-fried-spring-roll-wrapper-quality-upon-treatment-of-batter-with-maltogenic-amylase-transglutaminase-and-bromelain
#15
JOURNAL ARTICLE
Jia-Lin Wang, Meng-Jin Sun, Zheng-Meng Pei, Zhi Zheng, Shui-Zhong Luo, Yan-Yan Zhao, Xi-Yang Zhong
BACKGROUND: Fried foods are favored for their unique crispiness, golden color and flavor, but they also face great challenge due to their high oil content, high calories, and existence of compounds such as acrylamide and polycyclic aromatic hydrocarbons. Long-term consumption of fried foods may adversely affect health. Therefore, it is necessary to explore fried foods with lower oil contents and high quality to meet the demand. RESULTS: A method of enzyme treatment was explored to investigate the effects of maltogenic amylase (MA), transglutaminase (TG) and bromelain (BRO) on the physicochemical properties of the batter and the quality of fried spring roll wrapper (FSRW)...
March 19, 2024: Journal of the Science of Food and Agriculture
https://read.qxmd.com/read/38497282/acid-mediated-domino-cyclization-of-ortho-formyl-cinnamate-esters-synthesis-of-substituted-indene-indane-esters-and-indeno-a-indenones
#16
JOURNAL ARTICLE
Chander Shekhar, Gedu Satyanarayana
A Bro̷nsted acid-driven protocol to access substituted monoarylindene esters, biarylindane esters, and indeno[ a ]indenones from simple ortho -formylcinnamate esters and external arenes has been revealed. Remarkably, this single-pot process enabled the construction of two, three, and four new C-C bonds in building monoarylindene esters, biarylindane esters, and indeno[ a ]indenones, respectively, under metal-free and mild reaction parameters via triggering the inactive cinnamate ester moiety. In addition, the present strategy is investigated with widespread substrate scope...
March 18, 2024: Journal of Organic Chemistry
https://read.qxmd.com/read/38462944/brolucizumab-effectiveness-in-pigment-epithelium-detachment-due-to-exudative-amd-in-na%C3%A3-ve-treatment-or-non-responder-patients
#17
JOURNAL ARTICLE
Claudio Furino, Valeria Albano, Maria D'Addario, Michele Reibaldi, Francesco Boscia, Giovanni Alessio
PURPOSE: To investigate outcomes after Brolucizumab injection in naïve treatment or non-responder patients with exudative age-related macular degeneration (AMD). METHODS: It is a retrospective, comparative, cohort study conducted at the tertiary referral center of the University Hospital Polyclinic of Bari, for 5 years, from November 2017 until May 2022. 41 eyes with wet-AMD (w-AMD) were included, undergoing anti-vascular endothelial growth factor (VEGF) intravitreal injections...
March 11, 2024: European Journal of Ophthalmology
https://read.qxmd.com/read/38453174/understanding-alkene-interaction-with-metal-modified-zeolites-thermodynamics-and-mechanism-of-bonding-in-the-%C3%AF-complex
#18
JOURNAL ARTICLE
Anton A Gabrienko, Ekaterina S Kvasova, Daniil I Kolokolov, Dmitry E Gorbunov, Anton S Nizovtsev, Zoya N Lashchinskaya, Alexander G Stepanov
Zeolites modified with metal cations are perspective catalysts for converting light alkenes to valuable chemicals. A crucial step of the transformation is an alkene interaction with zeolite to afford π-complex with metal cations. The mechanism of alkene bonding with cations is still unclear. To address this problem, propene adsorption on H+ (Bro̷nsted acid site), Na+ , Ca2+ , Zn2+ , Co2+ , Cu2+ , Cu+ , and Ag+ cationic sites in ZSM-5 zeolite has been studied by quantum chemical calculations in terms of adsorption enthalpy, νC ═C frequency, and natural bond orbital (NBO) analysis together with natural energy decomposition analysis (NEDA)...
March 7, 2024: Inorganic Chemistry
https://read.qxmd.com/read/38422091/live-music-in-the-intensive-care-unit-a-beautiful-experience
#19
JOURNAL ARTICLE
Pia Dreyer, Linette Thorn, Trine Højfeldt Lund, Margrethe Langer Bro
BACKGROUND: The growing number of lightly or non-sedated patients who are critically ill means that more patients experience the noisy and stressful environment. Live music may create positive and meaningful moments. PURPOSE: To explore non-sedated patients' experiences of patient-tailored live music interventions in the intensive care unit. DESIGN: A qualitative study using a phenomenological-hermeneutic approach. Data were collected at two intensive care units from September 2019 to February 2020 exploring 18 live music interventions performed by music students from The Royal Academy of Music, Aarhus, Denmark...
December 2024: International Journal of Qualitative Studies on Health and Well-being
https://read.qxmd.com/read/38400241/blink-related-oscillations-provide-naturalistic-assessments-of-brain-function-and-cognitive-workload-within-complex-real-world-multitasking-environments
#20
JOURNAL ARTICLE
Cleo Page, Careesa Chang Liu, Jed Meltzer, Sujoy Ghosh Hajra
BACKGROUND: There is a significant need to monitor human cognitive performance in complex environments, with one example being pilot performance. However, existing assessments largely focus on subjective experiences (e.g., questionnaires) and the evaluation of behavior (e.g., aircraft handling) as surrogates for cognition or utilize brainwave measures which require artificial setups (e.g., simultaneous auditory stimuli) that intrude on the primary tasks. Blink-related oscillations (BROs) are a recently discovered neural phenomenon associated with spontaneous blinking that can be captured without artificial setups and are also modulated by cognitive loading and the external sensory environment-making them ideal for brain function assessment within complex operational settings...
February 7, 2024: Sensors
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