bluuebunny/crossref_metadata_2025 huggingface dataset:
Interaural time difference sensitivity under binaural cochlear implant stimulation persists at high pulse rates up to 900 pps
Authors: Buck Alexa N. , Buchholz Sarah , Schnupp Jan W. , Rosskothen-Kuhl Nicole
Published: March 2023

Spatial hearing remains one of the major challenges for bilateral cochlear implant (biCI) users, and early deaf patients in particular are often completely insensitive to interaural time differences (ITDs) delivered through biCIs. One popular hypothesis is that this may be due to a lack of early binaural experience. However, we have recently shown that neonatally deafened rats fitted with biCIs in adulthood quickly learn to discriminate ITDs as well as their normal hearing litter mates, and perform an order of magnitude better than human biCI users. Our unique behaving biCI rat model allows us to investigate other possible limiting factors of prosthetic binaural hearing, such as the effect of stimulus pulse rate and envelope shape. Previous work has indicated that ITD sensitivity may decline substantially at the high pulse rates often used in clinical practice. We therefore measured behavioral ITD thresholds in neonatally deafened, adult implanted biCI rats to pulse trains of 50, 300, 900 and 1800 pulses per second (pps), with either rectangular or Hanning window envelopes. Our rats exhibited very high sensitivity to ITDs at pulse rates up to 900 pps for both envelope shapes, similar to those in common clinical use. However, ITD sensitivity declined to near zero at 1800 pps, for both Hanning and rectangular windowed pulse trains. Current clinical cochlear implant (CI) processors are often set to pulse rates ≥ 900 pps, but ITD sensitivity in human CI listeners has been reported to decline sharply above ~ 300 pps. Our results suggest that the relatively poor ITD sensitivity seen at > 300 pps in human CI users may not reflect the hard upper limit of biCI ITD performance in the mammalian auditory pathway. Perhaps with training or better CI strategies good binaural hearing may be achievable at pulse rates high enough to allow good sampling of speech envelopes while delivering usable ITDs.
Association of general and central obesity, and their changes with risk of knee osteoarthritis: a nationwide population-based cohort study
Authors: Park Dojoon , Park Yong-Moon , Ko Seung-Hyun , Hyun Kang-Se , Choi Youn-Ho , Min Dong-Uk , Han Kyungdo , Koh Hae-Seok
Published: March 2023

In this study, we aimed to evaluate the association between general and central obesity, and their changes with risk of knee osteoarthritis (OA) using retrospective cohort data collected from the Korean National Health Insurance Service. We studied 1,139,463 people aged 50 and over who received a health examination in 2009. To evaluate the association between general and/or central obesity and knee OA risk, a Cox proportional hazard models were used. Additionally, we investigate knee OA risk according to the change in obesity status over 2 years for subjects who had undergone health examinations for 2 consecutive years. General obesity without central obesity (HR 1.281, 95% CI 1.270–1.292) and central obesity without general obesity (HR 1.167, 95% CI 1.150–1.184) were associated with increased knee OA risk than the comparison group. Individuals with both general with central obesity had the highest risk (HR 1.418, 95% CI 1.406–1.429). This association was more pronounced in women and younger age group. Remarkably, the remission of general or central obesity over two years was associated with decreased knee OA risk (HR 0.884; 95% CI 0.867–0.902; HR 0.900; 95% CI 0.884–0.916, respectively). The present study found that both general and central obesity were associated with increased risk of knee OA and the risk was highest when the two types of obesity were accompanied. Changes in obesity status have been confirmed to alter the risk of knee OA.
A new hybrid algorithm for three-stage gene selection based on whale optimization
Authors: Liu Junjian , Qu Chiwen , Zhang Lupeng , Tang Yifan , Li Jinlong , Feng Huicong , Zeng Xiaomin , Peng Xiaoning
Published: March 2023

In biomedical data mining, the gene dimension is often much larger than the sample size. To solve this problem, we need to use a feature selection algorithm to select feature gene subsets with a strong correlation with phenotype to ensure the accuracy of subsequent analysis. This paper presents a new three-stage hybrid feature gene selection method, that combines a variance filter, extremely randomized tree, and whale optimization algorithm. First, a variance filter is used to reduce the dimension of the feature gene space, and an extremely randomized tree is used to further reduce the feature gene set. Finally, the whale optimization algorithm is used to select the optimal feature gene subset. We evaluate the proposed method with three different classifiers in seven published gene expression profile datasets and compare it with other advanced feature selection algorithms. The results show that the proposed method has significant advantages in a variety of evaluation indicators.
The lack of keratinized mucosa as a risk factor for peri-implantitis: a systematic review and meta-analysis
Authors: Mahardawi Basel , Jiaranuchart Sirimanas , Damrongsirirat Napat , Arunjaroensuk Sirida , Mattheos Nikos , Somboonsavatdee Anupap , Pimkhaokham Atiphan
Published: March 2023

This study aimed to investigate the effect of the lack of keratinized mucosa on the risk of peri-implantitis, while also accounting for possible confounding factors. A literature search was conducted in PubMed and Scopus, including human studies that assessed the presence and width of keratinized mucosa in relation to the occurrence of peri-implantitis. Twenty-two articles were included, and 16 cross-sectional studies we meta-analyzed. The prevalence of peri-implantitis was 6.68–62.3% on patient-level and 4.5–58.1% on implant-level. The overall analysis indicated that the lack of keratinized mucosa was associated with a higher prevalence of peri-implantitis (OR = 2.78, 95% CI 2.07–3.74, p < 0.00001). Similar results were shown when subgroup analyses were performed, including studies with a similar case definition of peri-implantitis (Marginal Bone Loss, MBL ≥ 2 mm) (OR = 1.96, 95% CI 1.41–2.73, p < 0.0001), fixed prostheses only (OR = 2.82, 95% CI 1.85–4.28, p < 0.00001), patients under regular implant maintenance (OR = 2.08, 95% CI 1.41–3.08, p = 0.0002), and studies adjusting for other variables (OR = 3.68, 95% CI 2.32–5.82, p = 0.007). Thus, the lack of keratinized mucosa is a risk factor that increases the prevalence of peri-implantitis and should be accounted for when placing dental implants.
Ecological sustainability and high-quality development of the Yellow River Delta in China based on the improved ecological footprint model
Authors: Wei Zhongyong , Jian Zhen , Sun Yingjun , Pan Fang , Han Haifeng , Liu Qinghao , Mei Yuang
Published: March 2023

Aiming at the traditional ecological footprint model, the improved ecological footprint of the carbon footprint effectively makes up for the singularity of the ecological footprint's consideration of carbon emissions, and plays an important role in promoting high-quality development and ecological sustainability. This paper selects 2015, 2018 and 2020 as important time points for the study, corrects the ecological footprint parameter factors based on net primary productivity (NPP), measures the ecological footprint after the improvement of the carbon footprint, studies the spatial and temporal variation in the ecological footprint at the 100-m grid scale with the support of IPCC greenhouse gas inventory analysis, and analyzes the current ecological conservation status of the Yellow River Delta. Additionally, in the context of a low carbon economy, the decoupling index of carbon emissions and GDP is extended to the evaluation and analysis of high-quality development. The study showed that (1) the ecological footprint of the Yellow River Delta has increased year by year, from 0.721 hm2·person− 1 to 0.758 hm2·person− 1, an average annual increase of 2.9%; the ecological carrying capacity has decreased from 0.40 hm2·person− 1 to 0.31 hm2·person− 1, an overall decrease of 28.59%. (2) The overall ecological deficit of the Yellow River Delta grid is lightly overloaded, with most of the ecological surplus occurring in the northern and eastern parts of the study area and a few moderate and heavy overloads in the center of the core area where there is a lot of built-up land and the area is small and easy to gather. (3) Based on the low-carbon economy analysis, 2015, 2017 and 2020 reach absolute decoupling and are in the ideal scenario. However, in the rest of the years, carbon emissions and economic development are still in a large contradiction, and decoupling has fluctuated and varied greatly in the last six years. The effective combination of ecological footprint and low carbon economy analysis provides an important theoretical basis for improving ecological conservation and achieving high-quality development.
Thermal stability assessment of calcium monosulfoaluminate 12-hydrate by applying the in-situ X-ray diffraction method at 25–1250 °C
Authors: Rubinaite Dovile , Dambrauskas Tadas , Baltakys Kestutis , Hilbig Harald , Siauciunas Raimundas
Published: March 2023

In this study, the stability of synthetic calcium monosulfoaluminate and the reaction mechanism of its conversion into ye`elimite during the thermal treatment were examined. The monosulfoaluminate was produced referring to ye`elimite stoichiometry by applying the mechanochemical treatment (dry grinding at 900 rpm with 3 on–off cycles of 10 min) followed by the hydrothermal synthesis (for 8 h at 110 °C). The data indicated that the prepared sample consists of Ms12 (~ 54.8%), CaCO3 (~ 1.9%), Ms10.5/Hc (~ 0.7%) and amorphous content (~ 42.6%). Meanwhile, the thermal stability assessment by in-situ XRD analysis reveals that the dehydration of monosulfoaluminate interlayer water proceeds at 25–370 °C, where four different hydration states of monosulfoaluminate are identified. Additionally, the results suggest that the removal of water molecules from the main (octahedral) layers begins at ~ 200 °C. Finally, at 700–1250 °C, the solid-state reactions between CŜ, CA and CaO are observed, generating the formation of ye`elimite.
Fast on–off controlling of electrohydrodynamic printing based on AC oscillation induced voltage
Authors: Chen Huatan , Chen Junyu , Jiang Jiaxin , Shao Zungui , Kang Guoyi , Wang Xiang , Li Wenwang , Liu Yifang , Zheng Gaofeng
Published: March 2023

Stability control of electrohydrodynamic (EHD) printing technology is urgent needed for efficient fabrication of flexible electronics. In this study, a new fast on–off controlling technology for micro droplets of EHD is proposed by applying an AC induced voltage. The suspending droplet interface is broken through quickly, and the impulse current can be significantly reduced from 527.2 to 50.14 nA, which greatly reduces its negative impact on jet stability. What’s more, time interval of jet generation can be shortened by a factor of three, while not only significantly improving the uniformity of the droplets, but effectively reducing the droplet size from 195 to 104 μm. Moreover, the controllable and mass formation of micro droplets are realized, but also the structure of each droplet is able to be controlled independently, which promoted the development of EHD printing technology in more fields.
Seasonal variation in morphotype composition of pelagic Sargassum influx events is linked to oceanic origin
Authors: Alleyne Kristie S. T. , Johnson Donald , Neat Francis , Oxenford Hazel A. , Vallѐs Henri
Published: March 2023

The recent proliferation of pelagic Sargassum spp. in the Tropical Atlantic causes major ecological and socioeconomic impacts to the wider Caribbean when it washes ashore, with regional fisheries and tourism industries particularly affected. The Caribbean influxes have been tracked to a new bloom region known as the North Equatorial Recirculation Region (NERR) encompassing the area between the South Equatorial Current and the North Equatorial Counter Current and extending from Africa to South America. The vast biomass of Sargassum presents serious problems when it washes ashore but also represents significant commercial opportunities, especially with biofuel and fertilizer. The floating Sargassum mats are themselves diverse ecosystems that vary both in their biodiversity and biochemical attributes. Two major species (Sargassum fluitans and S. natans) have been identified as well as several distinguishable morphotypes of each. Oceanic mixing tends to blend the morphotypes together making it difficult to determine if there are regions of the NERR that favour bloom and growth of the distinct types. In this study, we quantify the species and morphotype composition of Sargassum strandings in Barbados and test if this is related to separate oceanic origins and routes travelled using a backtracking algorithm based on ocean drifter data. We found significant seasonal variation in the relative abundance of three morphotypes and this could be traced to two distinct easterly sub-origins and/or transport pathways; one area around 15° N that travels directly E–W across the Atlantic, and another area generally south of 10° N that takes a more meandering route coming close the coast of South America. These findings contribute towards our understanding of why the Tropical Atlantic bloom is presently occurring as well as towards addressing valorisation constraints surrounding variation in the supply of the three commonly occurring morphotypes.
Porous zeolitic imidazolate frameworks assembled with highly-flattened tetrahedral copper(ii) centres and 2-nitroimidazolates
Authors: Jung Cheolwon , Choi Sang Beom , Park Jaewoo , Jung Minji , Kim Jonghoon , Oh Hyunchul , Kim Jaheon
Published: March 2023

Cu-ZIF-gis has 2.4 Å cylindrical pores that can adsorb H2 gas, and Cu-ZIF-rho has 19.8 Å cages with a BET surface area of 1320 m2 g−1.
Non-stoichiometric carbamazepine cocrystal hydrates of 3,4-/3,5-dihydroxybenzoic acids: coformer–water exchange
Authors: Rajbongshi Trishna , Sarmah Kashyap Kumar , Das Susobhan , Deka Poonam , Saha Arijit , Saha Binoy K. , Puschmann Horst , Reddy C. Malla , Thakuria Ranjit
Published: March 2023

A unique set of carbamazepine (CBZ) non-stoichiometric cocrystal hydrates with 34/35DHBA have been synthesized which are facilitated by their isostructural nature with the CBZ dihydrate, resulting in coformer–water exchange (molecular alloy).
Ba4Ni3F14·H2O: a ferrimagnetic compound with a staircase kagomé lattice
Authors: Wang Yanqi , Zhao Zhiying , Cui Meiyan , He Zhangzhen
Published: March 2023

A new fluoride Ba4Ni3F14·H2O with a rare S = 1 staircase kagomé lattice shows a ferrimagnetic ground state.
Modulated self-assembly ofhcptopology MOFs of Zr/Hf and the extended 4,4′-(ethyne-1,2-diyl)dibenzoate linker
Authors: Boyadjieva Sophia S. , Firth Francesca C. N. , Alizadeh Kiapi Mohammad R. , Fairen-Jimenez David , Ling Sanliang , Cliffe Matthew J. , Forgan Ross S.
Published: March 2023

Careful control of synthetic conditions allows isolation of highly poroushcptopology Zr and Hf MOFs containing a linker with a potentially reactive alkyne spacer.
Structural and mechanistic studies of excitation- and temperature-tunable multicolor luminescence of triarylborane
Authors: Xie Yangbin , Dai Songshan , Wang Yue , Wang Xi , Sun Ying , Ju Zhenghua , Fang Ran , Zhang Baoxin , Wu Jincai , Zhang Xiaoxiang , Pan Xiaobo
Published: March 2023

Racemate (rac-1) and conglomerate (cong-1) crystals show different phosphorescence behaviour.Rac-1 is a strong excitation-wavelength-tunable photoluminescent material; cong-1 exhibits white-light emission upon temperature change with a CIE 1931 coordinate of (0.33, 0.31).
Influence of Sr doping on the photoelectronic properties of CsPbX3 (X = Cl, Br, or I): a DFT investigation
Authors: Zhang Man , Xiang Guangbiao , Wu Yanwen , Liu Jing , Leng Jiancai , Cheng Chen , Ma Hong
Published: March 2023

To broaden the application of cesium lead halide perovskites, doping technology has been widely proposed.
Distal scaffold flexibility accelerates ligand substitution kinetics in manganese(i) tricarbonyls: flexible thianthrene versus rigid anthracene scaffolds
Authors: Labrecque Jordan , Cho Yae-In , McIntosh Daniel K. , Agboola Faridat , Rose Michael J.
Published: March 2023

This work investigates the effect of molecular flexibility on fundamental ligand substitution kinetics in a pair of manganese(i) carbonyls supported by scaffold-based ligands.
One-step pyrolysis synthesis of ternary (P,S,N)-doped graphene as an efficient metal-free electrocatalyst for the oxygen reduction reaction
Authors: Wu Yujun , Shuang Wei , Yang Lin , Cao Chuanbao
Published: March 2023

Ternary (P,S,N)-doped graphene was prepared by an extremely facile one-step pyrolysis approach to act as an efficient metal-free electrocatalyst for the ORR owing to the preferable synergetic coupling effect between P, S and N.
On the role of C4 and C5 products in electrochemical CO2 reduction via copper-based catalysts
Authors: Rihm Simon D. , Kovalev Mikhail K. , Lapkin Alexei A. , Ager Joel W. , Kraft Markus
Published: March 2023

We identify many larger organics as products of electrochemical CO2 reduction in high-current GDEs – most interestingly, C4 and C5 isomers. The analysis of selectivity trends allows for deduction of general hypotheses to build a detailed mechanism.
Ce-MOF infused membranes with enhanced molecular sieving in the application of dye rejection
Authors: Nellur Usha , Naik Nagaraj S. , Rego Richelle M. , Kigga Madhuprasad , Arthanareeswaran G. , Padaki Mahesh
Published: March 2023

An affordable typical nuclide, cerium, found as one of the radioactive wastes, has been employed to prepare MOFs as a practice of recycling and reuse. Further, Ce-based MOF-infused membranes were developed for high-efficiency molecular separation.
Improving the sustainability of the ruthenium-catalysed N-directed C–H arylation of arenes with aryl halides
Authors: Findlay Michael T. , Hogg Ashley S. , Douglas James J. , Larrosa Igor
Published: March 2023

A ruthenium-catalysed C–H arylation procedure that utilises a range of green solvents in place of the undesirable solvent NMP is presented. Examples of fast reaction time, low catalyst loading and large-scale reactivity are also shown.
Retrosynthesis from transforms to predictive sustainable chemistry and nanotechnology: a brief tutorial review
Authors: Mikolajczyk Alicja , Zhdan Uladzislau , Antoniotti Sylvain , Smolinski Adam , Jagiello Karolina , Skurski Piotr , Harb Moussab , Puzyn Tomasz , Polanski Jaroslaw
Published: March 2023

Retrosynthesis is a tool initially developed to simplify the planning of the synthesis of organic molecules. With the progress of computer-aided synthesis design (CASD), its development will be predictive green and sustainable CASD.
A cost-effective smartphone-based device for rapid C-reaction protein (CRP) detection using magnetoelastic immunosensor
Authors: Yuan Zhongyun , Han Mengshu , Li Donghao , Hao Runfang , Guo Xing , Sang Shengbo , Zhang Hongpeng , Ma Xingyi , Jin Hu , Xing Zhijin , Zhao Chun
Published: March 2023

A smartphone-based C-reaction protein magnetoelastic (CRP-ME) immunosensor was developed. In this study, CRP can be detected with a sensitivity of 12.90 Hz μg−1 mL−1 and detection limit of 2.349 × 10−4 μg mL−1.
Photoactivated antibiotics to treat intracellular infection of bacteria
Authors: Eller Kristen A. , Stamo Dana F. , McCollum Colleen R. , Campos Jocelyn K. , Levy Max , Nagpal Prashant , Chatterjee Anushree
Published: March 2023

Superoxide-producing CdTe-2.4 eV nanoparticles treat an intracellular infection of Salmonella in a 2D preosteoblast bone infection model.
Visible-light-induced superhydrophilicity of crystallized WO3 thin films fabricated by using a newly isolated W6+ complex salt of citric acid
Authors: Murayama Taichi , Sato Mitsunobu , Nagai Hiroki , Yasui Eiko
Published: March 2023

Transparent tungsten trioxide thin films, which demonstrated visible-light (Vis-light)-induced superhydrophilicity, were fabricated using a solution-based process on quartz glass substrates.
Triphenylamine–boron complexes: molecular thermometry and alkyl chain controlled molecular fluorescent liquids
Authors: Gayathri Parthasarathy , Ravi Sasikala , Karthikeyan Subramanian , Mohitkar Anuradha , Jayanty Subbalakshmi , Pannipara Mehboobali , Al-Sehemi Abdullah G. , Moon Dohyun , Anthony Savarimuthu Philip
Published: March 2023

Triphenylamine–difluoroboron Schiff base complexes exhibited alkyl chain length controlled molecular fluorescent liquids and enhanced fluorescence, phosphorescence and thermofluorochromism.
Terpene synthases and pathways in animals: enzymology and structural evolution in the biosynthesis of volatile infochemicals
Authors: Tholl Dorothea , Rebholz Zarley , Morozov Alexandre V. , O'Maille Paul E.
Published: March 2023

Terpene volatile messengers are widespread among animals. New discoveries have been made about the role and independent evolution of pathways and enzymes in animal terpene biosynthesis, especially in the large group of insects.
Dinuclear coumarin-containing alkynylplatinum(ii) terpyridine complexes with supramolecular assembly-assisted photodimerization
Authors: Fang Shishi , Chan Michael Ho-Yeung , Yam Vivian Wing-Wah
Published: March 2023

A series of coumarin-containing alkynylplatinum(ii) terpyridine complexes features supramolecular-assembly assisted photodimerization, attributed to the preorganized CC bond of coumarin moieties in close proximity by directional Pt⋯Pt interaction.
Near-infrared to visible and ultraviolet upconversion in TiO2 thin films modified with Er and Yb
Authors: Śliz Anna , Radecka Marta , Jeleń Piotr , Dorosz Dominik , Zakrzewska Katarzyna
Published: March 2023

TiO2:Er and TiO2:Er,Yb thin films deposited by magnetron sputtering showed upconversion from NIR to VIS with main emission in green (λem ≈ 525 nm). The higher content of activator and sensitizer resulted in increased upconversion and UV emission.
Computer vision for non-contact monitoring of catalyst degradation and product formation kinetics
Authors: Yan Chunhui , Cowie Megan , Howcutt Calum , Wheelhouse Katherine M. P. , Hodnett Neil S. , Kollie Martin , Gildea Martin , Goodfellow Martin H. , Reid Marc
Published: March 2023

Non-contact computer vision complements traditional offline sampling methods for catalytic reaction monitoring.
The effect of dynamically heterogeneous interphases on the particle dynamics of polymer nanocomposites
Authors: Wu Di , Narayanan Suresh , Li Ruhao , Feng Yi , Akcora Pinar
Published: March 2023

The entanglements of dynamically asymmetric polymer layers influence relaxations of nanoparticles in polymer nanocomposites.
Designed sulfonate-based covalent organic frameworks with dual functions of recognition and encapsulation
Authors: Shang Shuaishuai , An Shuhao , Li He , Li Jianping , Zhang Shenping , Peng Changjun , Liu Honglai , Hu Jun
Published: March 2023

The self-exfoliation strategy provides a facile way to successfully build CON, avoid the ACQ effect in fluorescence chemistry. The established dual functions of separation and detection greatly improve the practical application of COF materials.
Toward multitasking solar desalination: a Janus and scalable paper evaporator with light trapping, heat confinement, salt resistance, and pollutant degradation
Authors: Wang Xin , Li Zilong , Xing Shuyang , Kuang Wei , Dong Cuihua , Liu Yingying
Published: March 2023

A self-floating paper evaporator with hierarchical Fenton catalysts and controlled Janus wettability was developed, exhibiting light trapping, heat confinement, salt rejection, pollutant degradation and scalable production.
Engineering anisotropic structures of thermally insulating aerogels with high solar reflectance for energy-efficient cooling applications
Authors: Kim Eunyoung , Chan Kit-Ying , Yang Jie , Venkatesan Harun , Adegun Miracle Hope , Zhang Heng , Lee Jeng-Hun , Shen Xi , Kim Jang-Kyo
Published: March 2023

A highly anisotropic boron nitride composite aerogel is obtained at a low freezing temperature, exhibiting excellent thermal insulation and solar reflectance for energy efficient cooling.
Direct observation of highly effective hydrogen isotope separation at active metal sites by in situ DRIFT spectroscopy
Authors: Yan Xiayan , Song Yaqi , Wang Degao , Xia Tifeng , Tan Xinxin , Ba Jingwen , Tang Tao , Luo Wenhua , Sang Ge , Xiong Renjin
Published: March 2023

In situ DRIFT spectroscopy was developed to observe the preferential adsorption of D2 over H2 at active CuI sites to show the chemical affinity quantum sieving effect for hydrogen isotope separation in microporous adsorbents.
“Super stable” Blatter radicals through ArLi addition: surprising chemistry of 7-(trifluoromethyl)benzo[e][1,2,4]triazine
Authors: Obijalska Emilia , Pietrzak Anna , Constantinides Christos P. , Sommer Roger D. , Kaszyński Piotr
Published: March 2023

The anion derived from the “super stable” Blatter radical is unstable and transforms to two main products via a novel mechanism.
Enhanced photoactive performance of three-layer structured Ag/Cu2O/TiO2 composites with tunable crystal microstructures
Authors: Liang Yuan-Chang , Sun Wei-Yang
Published: March 2023

Ag particle-decorated Cu2O/TiO2 composite films effectively photodegrade MO solution under irradiation.
Combined experimental and theoretical studies of conformationally diverse (thio)semicarbazone-based semiconducting materials
Authors: Panja Anangamohan , Das Mainak , Jana Narayan Ch. , Brandão Paula , Gomila Rosa M. , Ortega-Castro Joaquín , Frontera Antonio , Ray Partha Pratim
Published: March 2023

The importance of non-covalent interactions on the stability of conformationally diverse (thio)semicarbazone-based semiconducting materials is investigated.
Quest for singlet fission of organic sulfur-containing systems in the higher lying singlet excited state: application prospects of anti-Kasha's rule
Authors: Huang Chun-Hao , Wu Chi-Chi , Li Elise Y. , Chou Pi-Tai
Published: March 2023

We explore the possibilities of the deactivating pathways of strategically designed organic thiones through extensive first-principles calculations. Our results predict the likelihood of S2 fission in these systems with an acceptable heat loss of <1 eV.
Microwave absorption property of GO–Fe/FeO–NiO HNFs: GO decorated Fe/FeO–NiO hexagonal flakes with a 2D/0D/2D structure
Authors: Arabi Mozhgan , Baizaee Seyyed Mahdy , Hekmatara Hoda
Published: March 2023

In this study, Fe/FeO–NiO HNFs in which 2D NiO hexagonal nanoflakes (NiO HNFs) were decorated by 0D Fe/FeO NPs were prepared by a facile hydrothermal method.
Low-temperature oxidative coupling of methane over LaCeZr ternary oxide supported Mn–Na2WO4
Authors: Wang Junxing , Liu Fangwei , Wu Jianzhou , Zou Shihui , Fan Jie
Published: March 2023

LaCeZr ternary oxides supported Mn–Na2WO4catalyst achieves 20.9% C2yield at 700 °C with at least 50 hour stability.
Synthesis of a Sm3+-doped YGa1.5Al1.5(BO3)4 phosphor via a mechanical activation-assisted solid-state reaction
Authors: Zhao Xiujuan , Wang Yanmin , Pan Zhidong , Lu Youjun , Li Junhao , Wu Mingmei
Published: March 2023

The photoluminescence intensity of YGAB:0.03Sm3+ phosphor can be improved effectively by proper mechanical activation.
A tris(2-aminoethyl)amine-based zinc complex as a highly water-soluble drug carrier for the anti-COVID-19 drug favipiravir: a joint experimental and theoretical study
Authors: Hajibabaei Farshid , Sanei Movafagh Samaneh , Salehzadeh Sadegh , Gable Robert William
Published: March 2023

A water-soluble drug vehicle forN/O-coordinated favipiravir anion that releases drug favipiravir in acidic media.
Ionic fluctuations in finite volumes: fractional noise and hyperuniformity
Authors: Hoang Ngoc Minh Thê , Rotenberg Benjamin , Marbach Sophie
Published: March 2023

Ionic fluctuations in finite observation volumes exhibit fractional noise features and hyperuniformity with time, improving our understanding of single-particle electrochemistry.
In situ rapid synthesis of hydrogels based on a redox initiator and persistent free radicals
Authors: Yuan Wei , Wang Fangfang , Qu Xinyu , Wang Siying , Lei Bing , Shao Jinjun , Wang Qian , Lin Jianjian , Wang Wenjun , Dong Xiaochen
Published: March 2023

With a redox initiation system and stable persistent free radicals, hydrogels could be rapidly synthesized in situ. This approach greatly facilitates the rapid and economical synthesis of high-performance hydrogels.
Regulating the interfacial charge separation between MoS2QDs and sea-urchin graphitic carbon nitride for deep photodegradation of tetracycline under visible light
Authors: Zhan Xingyu , Zhang Hao , Zeng Yunxiong , Xu Jingcai , Jin Ao , Wang Xinqing , Li Jing , Yang Yanting , Hong Bo
Published: March 2023

Graphitic carbon nitride (CN) is considered to be a promising metal-free photocatalyst, but the charge carrier separation and rapid complexation of electrons and holes are difficult to modulate for effective and comprehensive photodegradation of TC.
Role of hypoxanthine-guanine phosphoribosyltransferase in the metabolism of fairy chemicals in rice
Authors: Takemura Hirohide , Choi Jae-Hoon , Fushimi Keiji , Narikawa Rei , Wu Jing , Kondo Mitsuru , Nelson David C. , Suzuki Tomohiro , Ouchi Hitoshi , Inai Makoto , Hirai Hirofumi , Kawagishi Hirokazu
Published: March 2023

We have revealed the function of HGPRT and the existence of novel purine metabolism associated with the biosynthesis and metabolism of AHX and AOH in rice.
Photochemical synthesis and ring–chain–ring tautomerism of benzo[4,5]imidazo[1,2-a]cyclopenta[e]pyridines
Authors: Komogortsev Andrey N. , Lichitskii Boris V. , Milyutin Constantine V. , Melekhina Valeriya G.
Published: March 2023

A photochemical method for the synthesis of substituted benzo[4,5]imidazo[1,2-a]cyclopenta[e]pyridines was elaborated. It was shown that the synthesized photoproducts exist as an interconvertible mixture of tautomers in solution.
Recent advances in electrochromic materials and devices for camouflage applications
Authors: Fu Haichang , Zhang Ling , Dong Yujie , Zhang Cheng , Li Weijun
Published: March 2023

This review will systematically summarize and discuss in detail the latest developments in electrochromic camouflage materials and devices from the two aspects of color camouflage and thermal camouflage.
Electric field engineering and modulation of CuBr: a potential material for optoelectronic device applications
Authors: Arif Suneela
Published: March 2023

I–VII semiconductors are promising candidates for the solid-state optoelectronics may be engineered/tailored by manipulating electronic bandgaps.
A SWOT analysis of nano co-crystals in drug delivery: present outlook and future perspectives
Authors: Witika Bwalya A. , Choonara Yahya E. , Demana Patrick H.
Published: March 2023

The formulation of poorly soluble drugs is an intractable challenge in the field of drug design, development and delivery.
Magnetic chitosan/TiO2 composite for vanadium(v) adsorption simultaneously being transformed to an enhanced natural photocatalyst for the degradation of rhodamine B
Authors: Zhang Jun , Wei Xuxu , Zhang Zifan , Yuan Caixia , Huo Ting , Niu Fangfang , Lin Xiaoyu , Liu Chunli , Li Hui , Chen Zhenbin
Published: March 2023

A magnetic chitosan/TiO2 composite material (MCT) was developed. MCT was successfully synthesized by a one-pot method using chitosan, TiO2, and Fe3O4.
Correction: One-pot synthesis of ordered nanoporous amorphous H-Zn-aluminosilicate for catalysis of bulky molecules
Authors: Diwakar Jitendra , Viswanadham Nagabhatla , Kumar Saurabh , Kumar Adarsh , Saxena Sandeep K.
Published: March 2023

Correction for ‘One-pot synthesis of ordered nanoporous amorphous H-Zn-aluminosilicate for catalysis of bulky molecules’ by Jitendra Diwakar et al., Sustainable Energy Fuels, 2018, 2, 1693–1698, https://doi.org/10.1039/C8SE00150B.
Advanced adjustable ionic conductivity of polybenzimidazole membranes with arrayed two-dimensional AlOOH nanosheets for water electrolysis
Authors: Qiu Zhi , Wang Lihua , He Min , Yun Yanbin
Published: March 2023

Adjustable ionic conductivity of γ-AlOOH-PBI membranes with arrayed AlOOH nanosheets inserting perpendicularly into the membrane surface was presented. The hydroxide ion conductivity of the novel membrane was about 3.1-fold higher than the pristine PBI membrane.
Designed a hollow Ni2P/TiO2 S-scheme heterojunction for remarkably enhanced photoelectric effect for solar energy harvesting and conversion
Authors: Nan Youbo , Wang Xiutong , Xing Shaohua , Xu Hui , Niu Jianmin , Ren Meipeng , Yu Teng , Huang Yanliang , Hou Baorong
Published: March 2023

A hollow Ni2P/TiO2 S-scheme heterojunction was designed to harvest solar energy and enhance the photoelectric effect. The Ni2P/TiO2 heterojunction exhibits excellent photoelectric separation effects.
Ambient light stimulation enabling intense and long-lasting ultraviolet-C persistent luminescence from Pr3+-doped YBO3 in bright environments
Authors: Lv Xulong , Shan Xihui , Zhang Yi , Liang Yanjie
Published: March 2023

Intense and long-lasting UVC persistent luminescence can be realized in the YBO3:Pr3+ phosphor through the continuous photostimulation of ambient light in a bright indoor lighting or an outdoor sunlight environment.
Exploring the Sentence Length and Age of Acquisition of Speech Recognition Test Sentences in Dutch, American English, and Canadian French
Authors: van der Hoek-Snieders Hanneke E. M. , Rhebergen Koenraad S.
Published: March 2023

Purpose:

The purpose of this study was to examine the differences between the age of acquisition (AoA) and sentence length of sentences of the speech recognition (SR) tests for adults and children in Dutch, American English, and Canadian French.

Method:

The AoA and sentence length of the sentences of four SR tests for adults and children were determined. One-way analyses of variance were performed to assess differences between the tests.

Results:

The AoA and sentence length of the sentences significantly differed between the SR tests for adults. These differences were also found between the SR tests for children.

Conclusions:

The AoA and the sentence length differ across the SR tests in Dutch, American English, and Canadian French. The Dutch sentences have higher AoA and are longer than the sentences in American English and Canadian French. The effect of the linguistic complexity on sentence repetition accuracy should be investigated during the development and validation of a Dutch SR test for children.
Dark light enhancement for dark scene urban object recognition
Authors: Zhou Xiao , Du Xiaobiao , Ru Peizhe
Published: March 2023

This paper presents a low‐light image enhancement method to improve the performance of autonomous piloting tasks based on deep learning methods. In the low light environment, camera sensors cannot capture enough effective photon signals causing poor performance in vision‐based autonomous piloting. Moreover, the lack of training data makes single‐frame low‐light enhancement and denoising algorithms hard to generalize in real‐world scenarios. By analyzing the noise patterns of real‐world cameras under low‐light environments, a noise generation method is proposed to mimic real‐world dark‐light noise and generate noisy‐clean data pairs for training. A method that can calibrate the camera shot noise parameters is then designed to learn low‐light enhancement from the synthesized noisy data pairs. The neural network trained on a synthesized dataset can effectively enhance the dark light image quality. Consequently, the network improves the downstream auto‐piloting applications such as object detection and semantic segmentation. Qualitative and quantitative experiments have been conducted to demonstrate that the method outperforms previous methods in low‐light enhancement.
Parametric scatterer extraction method for space‐target inverse synthetic aperture radar image CLEAN
Authors: Zhang Xiongkui , Cui Jing , Wang Junling , Sun Chang , Zhu Zhaokun , Wang Fang , Ma Yan
Published: March 2023

Owing to the time variance of the inverse synthetic aperture radar (ISAR) imaging plane of space targets, scatterers with large heights relative to the imaging plane migrate through several Doppler cells. This defocussing in the azimuth direction of each scatterer cannot be compensated via the traditional migration through the resolution cell (MTRC) compensation method because the height of each scatterer is quite different and independently distributed in the ISAR image. In this study, a parametric azimuth‐defocussing model‐based CLEAN method is proposed for the space‐target ISAR image. First, high‐order defocus parameters and their influences on the image of space targets were analysed at different arc segments. Subsequently, a mathematical azimuth‐defocussing expression of the ISAR image scatterers was derived after MTRC and azimuth high‐order phase compensation, and an approximate defocus expression based on the Fresnel integral was provided for computational efficiency. This model can estimate the complex amplitude, coordinates and defocus parameters of each scatterer in the image domain by applying a sequential quadratic programing algorithm. Finally, the validity and stability of the proposed algorithm for the isolated and coupled scatterer extraction were verified at different signal‐to‐noise ratios, and different defocus parameters were verified through simulations.
Chemical characterisation of the X-shooter Spectral Library (XSL): [Mg/Fe] and [Ca/Fe] abundances
Authors: Santos-Peral P. , Sánchez-Blázquez P. , Vazdekis A. , Palicio P. A.
Published: March 2023

Context. The X-shooter Spectral Library (XSL) is a large empirical stellar library used as a benchmark for the development of stellar population models. The inclusion of α-element abundances is crucial to disentangling the chemical evolution of any stellar system.

Aims. The aim of this paper is to provide a catalogue of high-precision, accurate magnesium and calcium abundances from a wide variety of stars that are well distributed in the Hertzsprung-Russell (HR) diagram.

Methods. We originally performed an analysis of the derived Mg and Ca abundances for medium-resolution spectra of 611 stars from the XSL Data Release 2. For this purpose, we used the GAUGUIN automated abundance estimation code to fit the ultraviolet-blue (UVB) and visible (VIS) spectra. We tested the consistency of the atmospheric parameters and chemical abundances with the Gaia DR3 and the AMBRE Project datasets.

Results. We finally obtained precise [Mg/Fe] and [Ca/Fe] abundances for 192 and 217 stars, respectively, from which 174 stars have measurements in both elements. The stars cover a broad effective temperature range of 4000 < Teff < 6500 K, surface gravity of 0.3 < log(g) < 4.8 cm s−2, and metallicity of −2.5 < [Fe/H] < +0.4 dex. We find an excellent agreement with the abundance estimates from the AMBRE:HARPS and the Gaia-RVS (Radial Velocity Spectrometer) analysis. Moreover, the resulting abundances reproduce a plateau in the metal-poor regime followed by a decreasing trend even at supersolar metallicities, as predicted by Galactic chemical evolution models.

Conclusions. This catalogue is suitable for improving the modelling of evolutionary stellar population models with empirical α enhancements, which could significantly contribute to the analysis of external galaxies’ abundances in the near future.
Zuhause-Pflegen und trotzdem gesund bleiben? Risiko- und
Schutzfaktoren für dysfunktionales Coping bei pflegenden
Angehörigen
Authors: Donath Carolin , Pendergrass Anna , Gräßel Elmar
Published: March 2023

Ziel der Studie In Deutschland werden 3,3 Mio. Pflegebedürftige zu
Hause versorgt. Mehr als die Hälfte (54%) der pflegenden
Angehörigen schätzt die eigene Belastung dadurch als hoch oder
sehr hoch ein [1]. Für die Stressbewältigung werden
Copingstrategien, u. a. auch dysfunktionale, genutzt. Diese bergen die
Gefahr negativer gesundheitlicher Folgen. Ziel der Studie ist die Erfassung der
Häufigkeit dysfunktionaler Copingstrategien bei pflegenden
Angehörigen (pA) und die Identifikation von Schutz- und Risikofaktoren
für diese ungünstigen Bewältigungsmechanismen.

Methodik Eine Querschnittstudie mit N=961 befragten pA in Bayern
wurde 2020 durchgeführt. Neben dysfunktionalen Copingstrategien wie
Substanzgebrauch und Aufgeben/Vermeidung wurden bei pA die subjektive
Belastung, positive Aspekte der Pflege, Pflegemotive, Charakteristika der
Pflegesituation sowie die kognitive Bewertung der Pflegesituation und die
Einschätzung vorhandener Ressourcen (angelehnt an das Transaktionale
Stressmodell) erfasst. Neben deskriptiver Statistik zur Erfassung der
Häufigkeit dysfunktionalen Bewältigungsverhaltens wurde nach
statistischer Voraussetzungsprüfung mittels linearer Regression
untersucht, welche Prädiktoren sich für dysfunktionales Coping
identifizieren lassen.

Ergebnisse 14,7% der Befragten geben an, zumindest teilweise in
schwierigen Situation Alkohol oder andere Substanzen zu konsumieren,
47,4% der Befragten haben es in schwierigen Situationen aufgegeben, sich
mit der Thematik zu beschäftigen. Als Risikofaktoren für
dysfunktionales Coping wurden die subjektive Belastung (p<0,001), das
Motiv „aus Verpflichtung zu pflegen“ (p=0,035) und die
als unzureichend eingeschätzten eigenen Ressourcen zur Handhabbarkeit
der Pflegesituation (p=0,029) in einem signifikanten Gesamtmodell mit
mittlerer Anpassungsgüte (F (10)=16,776; p<0,001)
identifiziert.

Diskussion und Schlussfolgerung Dysfunktionales Coping in Bezug auf die
Thematik der Pflegesituation ist nicht selten. Der vielversprechendste
Ansatzpunkt für Interventionen ist die subjektive Belastung. Diese kann
nachweislich durch die Inanspruchnahme formeller und informeller Hilfe gesenkt
werden [2, 3]. Dazu muss aber das Problem der bisher niedrigen Nutzungsrate von
Beratungs- und anderen Unterstützungsangeboten [4] überwunden
werden. Neuere digitale Ansätze dazu sind in der Entwicklung [5, 6].
Controlled Prospective Study on the Use of Systematic Simulator-Based Training with a Virtual, Moving Fetus for Learning Second-Trimester Scan: FESIM III
Authors: Freundt Paula , Nourkami-Tutdibi Nasenien , Tutdibi Erol , Janzing Paul , von Ostrowski Thomas , Langer Martin , Zemlin Michael , Steinhard Johannes
Published: March 2023

Objectives To analyze the feasibility of structured ultrasound simulation training (SIM-UT) in teaching second-trimester ultrasound screening using a high-end simulator with a randomly moving fetus.

Methods This was a prospective, controlled trial. A trial group of 11 medical students with minimal obstetric ultrasound experience underwent 12 hours of structured SIM-UT in individual hands-on sessions within 6 weeks. Learning progress was assessed with standardized tests. Performance after 2, 4, and 6 weeks of SIM-UT was compared with two reference groups ((A) Ob/Gyn residents and consultants, and (B) highly skilled DEGUM experts). Participants were asked to acquire 23 2nd trimester planes according to ISUOG guidelines in a realistic simulation B-mode with a randomly moving fetus as quickly as possible within a 30-minute time frame. All tests were analyzed regarding the rate of appropriately obtained images and the total time to completion (TTC).

Results During the study, novices were able to improve their ultrasound skills significantly, reaching the physician level of the reference group (A) after 8 hours of training. After 12 hours of SIM-UT, the trial group performed significantly faster than the physician group (TTC: 621±189 vs. 1036±389 sec., p=0.011). Novices obtained 20 out of 23 2nd trimester standard planes without a significant time difference when compared to experts. TTC of the DEGUM reference group remained significantly faster (p<0.001) though.

Conclusion SIM-UT on a simulator with a virtual, randomly moving fetus is highly effective. Novices can obtain standard plane acquisition skills close to expert level within 12 hours of self-training.
Die Leber – mehr als nur ein Stoffwechselorgan
Authors: Benesic Andreas
Published: March 2023

Die Leber ist ein weitgehend unterschätztes und lebenswichtiges Organ. Sie trennt wichtige von giftigen Stoffen und wenn sie versagt, wird es für den Menschen schnell lebensbedrohlich. Dieser Schwerpunkt stellt die Leber, ihre möglichen Erkrankungen und pflegerische Besonderheiten von Patienten mit einer Lebererkrankung ausführlich vor.
Wie Intensivpflegende die Versorgung von COVID-19-Patienten erleben
Authors: Sofie Krah Nina
Published: March 2023

Die Arbeit, die Intensivpflegende tagtäglich während der Coronapandemie geleistet haben, ist kaum in Worte zu fassen und war für das Überleben vieler Menschen sowie gesellschaftlich unglaublich wichtig. Wie die Intensivpflegenden diese Erkrankung so nah auf ihren Stationen erlebt haben und ob dies ihre Sichtweise auf ihre Hilfsbereitschaft, ihr eigenes Leben und den Tod verändert hat, zeigt der folgende Beitrag.
Der lange Weg in ein Leben mit einem neuen Herz
Authors: Mannebach Thomas , Rakowski Daniel , Brakhage Jürgen , Krüger Lars
Published: March 2023

Die pflegerische Versorgung von Menschen, die auf ein neues Organ warten oder bereits erfolgreich transplantiert wurden, ist vielschichtig. Nach einem kurzen geschichtlichen Hintergrund wird die spezifische pflegerische Versorgung vor und nach einer Herztransplantation am Beispiel des Herz- und Diabeteszentrums NRW vorgestellt.
Optimizing Wound Care after Surgery of the Head and Neck: A Review of Dressing Materials
Authors: Lohuis Peter J.F.M. , Maldonado-Chapa Felix , Santos-Santillana Karla M. , Filipović Boris , Dirven Richard , Karakullukcku M. Baris , Karssemakers Luc , Schreuder Willem H. , Zuur Charlotte L. , Timmermans Jacqueline
Published: March 2023

Wound healing is a complex biological process subject to complications that might jeopardize the patient's postoperative care. Appropriately approaching surgical wounds after head and neck surgery positively influences the quality and speed of wound healing and increases patient comfort. A large variety of dressing materials currently exist that allow the care of different types of wounds. Nevertheless, there is limited literature on the most suitable types of dressings after head and neck surgery. The objective of the present article is to review the most commonly used wound dressings, their benefits, indications, and disadvantages, and to provide a systematic approach for wound care within the head and neck. The Woundcare Consultant Society distinguishes wounds into three groups: black, yellow, and red. Each type of wound represents distinctive underlying pathophysiological processes with unique needs. Utilizing this classification along with the TIME model allows a proper characterization of wounds and the identification of potential healing barriers. This evidence-based and systematic approach can facilitate and guide the head and neck surgeon in selecting a wound dressing upon acknowledging their properties, which are herein reviewed and exemplified with representative cases.
Synthesis of 2,2′-Bipyridines via Dehydrogenative Dimerization of Pyridines Using Sodium Dispersion
Authors: Ilies Laurean , Takai Kazuhiko , Asako Sobi , De Pinaki Bhusan
Published: March 2023

2,2′-Bipyridine derivatives were synthesized by dehydrogenative dimerization of nonactivated pyridines using sodium dispersion. The reaction features operational simplicity, mild conditions, and the use of earth abundant and nontoxic sodium as the sole metal source. Importantly, transition metals are not required, which is beneficial in the fields of materials science and drug synthesis, where the contamination of the transition metals may cause significant problems.
Regioselective anti-Silyllithiation of Propargylic Amines
Authors: Shimokawa Jun , Yorimitsu Hideki , Sato Tomohiko , Karad Somnath N.
Published: March 2023

The regioselective anti-silyllithiation of propargylic amines is developed to facilitate the efficient synthesis of alkenylsilanes. This reaction generates an alkenyllithium intermediate that is stabilized by the formation of a five-membered cyclic structure through intramolecular coordination of the nitrogen functional group. Upon subsequent treatment with an electrophile, the alkenyllithium intermediate is further functionalized to afford tetrasubstituted allylic amines bearing a β-silicon substituent.