keyword
https://read.qxmd.com/read/38366511/locating-sources-of-szegedy-s-quantum-network
#21
JOURNAL ARTICLE
Hong-Jue Wang, Zhao-Long Hu, Shu-Yu Shao, Fang-Feng Zhang, Li Tao
Source location in quantum networks is a critical area of research with profound implications for cutting-edge fields such as quantum state tomography, quantum computing, and quantum communication. In this study, we present groundbreaking research on the technique and theory of source location in Szegedy's quantum networks. We develop a linear system evolution model for a Szegedy's quantum network system using matrix vectorization techniques. Subsequently, we propose a highly precise and robust source-location algorithm based on compressed sensing specifically tailored for Szegedy's quantum network...
January 2024: Physical Review. E
https://read.qxmd.com/read/38362924/bioarchaeological-investigation-of-individuals-with-suspected-multibacillary-leprosy-from-the-mediaeval-leprosarium-of-st-mary-magdalen-winchester-hampshire-uk
#22
JOURNAL ARTICLE
G Michael Taylor, Katie White-Iribhogbe, Garrard Cole, David Ashby, Graham R Stewart, Heidi Dawson-Hobbis
Introduction. We have examined four burials from the St Mary Magdalen mediaeval leprosarium cemetery in Winchester, Hampshire, UK. One (Sk.8) was a male child, two (Sk.45 and Sk.52) were adolescent females and the fourth (Sk.512) was an adult male. The cemetery was in use between the 10th and 12th centuries. All showed skeletal lesions of leprosy. Additionally, one of the two females (Sk.45) had lesions suggestive of multi-cystic tuberculosis and the second (Sk.52) of leprogenic odontodysplasia (LO), a rare malformation of the roots of the permanent maxillary incisors...
February 2024: Journal of Medical Microbiology
https://read.qxmd.com/read/38343360/increased-thalamic-connectivity-in-juvenile-myoclonic-epilepsy-based-on-electroencephalography-source-level-analysis
#23
JOURNAL ARTICLE
Dong Ah Lee, Sung Eun Kim, Kang Min Park
BACKGROUND: This study investigated alterations in the intrinsic thalamic network of patients with juvenile myoclonic epilepsy (JME) based on electroencephalography (EEG) source-level analysis. METHODS: We enrolled patients newly diagnosed with JME, as well as healthy controls. The assessments were conducted in the resting state. We computed sources based on the scalp electrical potentials using a minimum norm imaging method and a standardized low-resolution brain electromagnetic tomography approach...
February 12, 2024: Brain Connectivity
https://read.qxmd.com/read/38339320/rensenet-a-deep-learning-network-incorporating-residual-and-dense-blocks-with-edge-conservative-module-to-improve-small-lesion-classification-and-model-interpretation
#24
JOURNAL ARTICLE
Hyunseok Seo, Seokjun Lee, Sojin Yun, Saebom Leem, Seohee So, Deok Hyun Han
Deep learning has become an essential tool in medical image analysis owing to its remarkable performance. Target classification and model interpretability are key applications of deep learning in medical image analysis, and hence many deep learning-based algorithms have emerged. Many existing deep learning-based algorithms include pooling operations, which are a type of subsampling used to enlarge the receptive field. However, pooling operations degrade the image details in terms of signal processing theory, which is significantly sensitive to small objects in an image...
January 29, 2024: Cancers
https://read.qxmd.com/read/38338328/self-assembled-molecular-complexes-of-1-10-phenanthroline-and-2-aminobenzimidazoles-synthesis-structure-investigations-and-cytotoxic-properties
#25
JOURNAL ARTICLE
Kameliya Anichina, Nikolay Kaloyanov, Diana Zasheva, Rusi Rusew, Rositsa Nikolova, Denitsa Yancheva, Ventsislav Bakov, Nikolai Georgiev
Three new molecular complexes (phen)3 (2-amino-Bz)2 (H+ )(BF4 - )·3H2 O 5 , (phen)3 (2-amino-5(6)-methyl-Bz)2 (H+ )(BF4 - )·H2 O 6 , and (phen)(1-methyl-2-amino-Bz)(H+ )(BF4 - ) 7 , were prepared by self-assembly of 1,10-phenanthroline (phen) and various substituted 2-aminobenzimidazoles. Confirmation of their structures was established through spectroscopic methods and elemental analysis. The X-ray diffraction analysis revealed that the crystal structure of 7 is stabilized by the formation of hydrogen bonds and short contacts...
January 24, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38330267/effect-of-modification-of-a-laccase-based-electrochemical-biosensor-with-carbon-nanotubes-on-signal-separation-of-dihydroxybenzene-isomers
#26
JOURNAL ARTICLE
Szymon Malinowski, Magdalena Wardak, Cecylia Wardak
This work describes a new electrochemical biosensor for the simultaneous determination of catechol and hydroquinone. A laccase biorecognition layer was deposited using an innovative soft plasma polymerization technique onto a multiwalled carbon nanotube (MWCNT)-modified glassy carbon electrode (GCE) to sufficiently separate catechol (CT) and hydroquinone (HQ) oxidation peaks. The electrochemical analysis carried out for MWCNTs with various morphologies was supported by density functional theory (DFT) calculations showing differences in the electronic structures of both dihydroxybenzene isomers and the MWCNTs forming the biosensor interlayer...
February 8, 2024: Langmuir: the ACS Journal of Surfaces and Colloids
https://read.qxmd.com/read/38326308/how-to-omit-the-potential-pitfalls-in-distal-radial-access-lessons-from-cadaveric-and-cta-analysis
#27
JOURNAL ARTICLE
Ping Wang, Yuezhan Shan, Benshan Xiao, Xiang Zhang, Jianfei Hou, Ni Cui, Xianglong Cao, Kailiang Cheng
OBJECTIVES: To verify the anatomical basis, ideal puncture sites, and potential pitfalls of the distal radial artery (dRA) in the anatomical snuffbox region for distal radial access (dTRA). MATERIALS AND METHODS: Overall, 26 formalin-fixed upper limbs and computed tomography angiography (CTA) of the upper limbs of 168 consecutive patients were studied. Cadaveric dissection and dRA 3D reconstruction were used to evaluate the dRA route for dTRA. The puncture sites, dRA diameter, and angle of the dRA and tendons of the extensor pollicis brevis were also measured in the patients and cadavers...
February 7, 2024: Journal of Endovascular Therapy
https://read.qxmd.com/read/38322893/removing-blurring-for-better-understanding-the-main-challenges-facing-digital-entrepreneurs-in-the-digital-era-an-empirical-investigation-study-from-emerging-country
#28
JOURNAL ARTICLE
Moh'd Anwer Al-Shboul
The purpose of this study is to examine the main challenges that these entrepreneurs in developing nations confront. This study utilizes a digital startup database maintained by the Ministry of Digital Economy and Entrepreneurship (MoDEE) in Jordan and conducts semi-structured interviews with a random selection of 85 early-stage digital entrepreneurs. In order to understand the cognitive and psychological characteristics of digital entrepreneurs and their motives for entering the field, this study draws on the theory of planned behavior...
February 15, 2024: Heliyon
https://read.qxmd.com/read/38321917/insights-into-the-crystal-structure-investigation-and-virtual-screening-approach-of-quinoxaline-derivatives-as-potent-against-c-jun-n-terminal-kinases-1
#29
JOURNAL ARTICLE
Shaaban K Mohamed, Subramani Karthikeyan, Omran A Omran, Atazaz Ahsin, Hanan Salah, Joel T Mague, Rashad Al-Salahi, Youness El Bakri
Quinoxaline derivatives are an important class of heterocyclic compounds in which N replaces one or more carbon atoms of the naphthalene ring and exhibit a wide spectrum of biological activities and therapeutic applications. As a result, we were encouraged to explore a new synthetic approach to quinoxaline derivatives. In this work, we synthesized two new derivatives namely, ethyl 4-(2-ethoxy-2-oxoethyl)-3-oxo-3,4-dihydroquinoxaline-2-carboxylate ( 2 ) and 3-oxo-3,4-dihydroquinoxaline-2-carbohydrazide ( 3 ) respectively...
February 7, 2024: Journal of Biomolecular Structure & Dynamics
https://read.qxmd.com/read/38321870/metal-determined-explosive-characteristics-of-m-no-3-2-1-at-x-of-thermal-and-laser-ignition-m-2-cr-2-mn-2-fe-2-co-2-ni-2-cu-2-and-zn-2-x-2-or-3
#30
JOURNAL ARTICLE
Shu Bu, Jianguo Zhang, Kun Wang
Optical and thermal ignition are two common pathways to initiate the explosion of primary explosives, where laser ignition is a more reliable and safer initiation method. Caused by the current-applied laser igniter with the wavelength of 1064 or 915 nm, the energetic complexes with strong absorption in the near-infrared (NIR) region are possibly applied as laser-ignited explosives. Recently, [Cu(NO3 )2 (1-AT)3 ] complex has been synthesized with excellent NIR absorption properties, where 1-amino-5H-tetrazole (1-AT) has been proved to be a promising laser-ignited energetic ligand...
February 6, 2024: Inorganic Chemistry
https://read.qxmd.com/read/38313184/acute-cerebrovascular-events-and-inflammatory-markers-associated-with-covid-19-an-observational-study
#31
JOURNAL ARTICLE
Merey Bakytzhanovna Jumagaliyeva, Dinmukhamed Nurniyazovich Ayaganov, Ibrahim Anwar Abdelazim, Samat Sagatovich Saparbayev, Nodira Miratalievna Tuychibaeva, Yergen Jumashevich Kurmambayev
The novel Coronavirus disease (COVID-19) is associated with an increased risk of cerebrovascular events. About 1,228 cases of severe COVID-19 were hospitalized in the West Kazakhstan Medical University Hospital, in Aktobe, Kazakhstan, 1.22% (N=15) of whom were clinically diagnosed with acute cerebrovascular events and were included in the current study. COVID-19 was diagnosed using a nasopharyngeal polymerase chain reaction (PCR) test, blood count, inflammatory markers, and chest computerized tomography. The diagnosis of acute cerebrovascular events was based on the clinical manifestation...
October 2023: Journal of Medicine and Life
https://read.qxmd.com/read/38308370/mirnas-as-potential-therapeutic-targets-and-biomarkers-for-non-traumatic-intracerebral-hemorrhage
#32
REVIEW
Ilgiz Gareev, Ozal Beylerli, Boxian Zhao
Non-traumatic intracerebral hemorrhage (ICH) is the most common type of hemorrhagic stroke, most often occurring between the ages of 45 and 60. Hypertension is most often the cause of ICH. Less often, atherosclerosis, blood diseases, inflammatory changes in cerebral vessels, intoxication, vitamin deficiencies, and other reasons cause hemorrhages. Cerebral hemorrhage can occur by diapedesis or as a result of a ruptured vessel. This very dangerous disease is difficult to treat, requires surgery and can lead to disability or death...
February 2, 2024: Biomarker Research
https://read.qxmd.com/read/38305213/improved-electrochemical-performance-of-aqueous-hybrid-supercapacitors-using-crco-2-o-4-mesoporous-nanowires-an-innovative-strategy-toward-sustainable-energy-devices
#33
JOURNAL ARTICLE
Awais Ahmad, Safia Khan, Muhammad Sufyan Javed, Sameh Osman, Hu Li, Saadat Majeed, Rafael Luque
High-rate aqueous hybrid supercapacitors (AHSCs) have attracted relevant scientific significance owing to their expected energy density, supercapacitor-level power density, and battery-level energy density. In this work, a bimetallic nanostructured material with chromium-incorporated cobalt oxide (CCO, i.e., CoCr2 O4 ) was prepared via a hydrothermal method to form a stable cubic obelisk structure. Compared with CCO materials prepared using traditional methods, CCO displayed a nanowire structure (50 nm diameter), suggesting an enhanced specific surface area and a large number of active sites for chemical reactions...
February 2, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38296307/increased-vascular-inflammation-on-pet-ct-in-psoriatic-arthritis-patients-in-comparison-with-controls
#34
JOURNAL ARTICLE
Nienke J Kleinrensink, Julia Spierings, Harald E Vonkeman, Negina Seddiqi, Amin Herman, Karijn P M Suijkerbuijk, Marloes W Heijstek, Mylène P Jansen, Pim A de Jong, Wouter Foppen
BACKGROUND: Patients with psoriatic arthritis (PsA) have an increased risk of cardiovascular disease, possibly due to a chronic inflammatory state. OBJECTIVES: The main objective of this study was to investigate the difference in vascular inflammation, measured with 18-fluorodeoxyglucose positron emission tomography/CT (PET/CT), in PsA patients and controls. We conducted a secondary analysis to assess the association between clinical parameters of disease activity with vascular inflammation in PsA...
January 30, 2024: RMD Open
https://read.qxmd.com/read/38287842/acute-changes-in-the-resting-brain-networks-in-concussion-patients-small-world-topology-perspective
#35
JOURNAL ARTICLE
Hong-Mei Kuang, Yan Chen, Ji-Lan Huang, Jian Li, Ning Zhang, Hong-Hui Ai, Guo-Jin Xia
BACKGROUND: The acute changes that occur in the small-world topology of the brain in concussion patients remain unclear. Here, we investigated acute changes in the small-world organization of brain networks in concussion patients and their influence on persistent post-concussion symptoms. METHODS: Eighteen concussion patients and eighteen age-matched controls were enrolled in this study. All participants underwent computed tomography, magnetic resonance imaging (MRI), susceptibility weighted imaging, and blood oxygen level-dependent functional MRI...
January 16, 2024: Journal of Integrative Neuroscience
https://read.qxmd.com/read/38283937/quantitative-photothermal-analysis-and-multispectral-imaging-of-dental-structures-insights-into-optical-and-thermal-properties-of-carious-and-healthy-teeth
#36
JOURNAL ARTICLE
Elnaz Baradaran Shokouhi, Damber Thapa, Robert Welch, Koneswaran Sivagurunathan, Andreas Mandelis
SIGNIFICANCE: In the analysis of two-layered turbid dental tissues, the outer finite-thickness layer is modeled by an optical transport coefficient distinct from its underlying semi-infinite substrate layer. The optical and thermophysical parameters of healthy and carious teeth across the various wavelengths were measured leading to the determination of the degree of reliability of each of the fitted parameters, with most reliable being thermal diffusivity and conductivity, enamel thickness, and optical transport coefficient of the enamel layer...
January 2024: Journal of Biomedical Optics
https://read.qxmd.com/read/38276585/eclipsed-and-twisted-excimers-of-pyrene-and-2-azapyrene-how-nitrogen-substitution-impacts-excimer-emission
#37
JOURNAL ARTICLE
Yasi Dai, Filippo Rambaldi, Fabrizia Negri
Due to their unique photophysical and electronic properties, pyrene and its analogues have been the subject of extensive research in recent decades. The propensity of pyrene and its derivatives to form excimers has found wide application in various fields. Nitrogen-substituted pyrene derivatives display similar photophysical properties, but for them, excimer emission has not been reported to date. Here, we use time-dependent density functional theory (TD-DFT) calculations to investigate the low-lying exciton states of dimers of pyrene and 2-azapyrene...
January 19, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38273370/validation-of-the-psychosocial-consequences-of-screening-in-lung-cancer-questionnaire-in-the-international-lung-screen-trial-australian-cohort
#38
JOURNAL ARTICLE
Asha Bonney, John Brodersen, Volkert Siersma, Katharine See, Henry M Marshall, Daniel Steinfort, Louis Irving, Linda Lin, Jiashi Li, Siyuan Pang, Paul Fogarty, Fraser Brims, Annette McWilliams, Emily Stone, Stephen Lam, Kwun M Fong, Renee Manser
BACKGROUND: Evaluation of psychosocial consequences of lung cancer screening with LDCT in high-risk populations has generally been performed using generic psychometric instruments. Such generic instruments have low coverage and low power to detect screening impacts. This study aims to validate an established lung cancer screening-specific questionnaire, Consequences Of Screening Lung Cancer (COS-LC), in Australian-English and describe early results from the baseline LDCT round of the International Lung Screen Trial (ILST)...
January 25, 2024: Health and Quality of Life Outcomes
https://read.qxmd.com/read/38252562/viral-presence-and-immunopathology-in-a-kidney-transplant-recipient-with-fatal-covid-19-a-clinical-autopsy-report
#39
JOURNAL ARTICLE
Larissa E van Eijk, Arno R Bourgonje, Mirjam F Mastik, Dirk Snippe, Marian L C Bulthuis, Wim Vos, Marianna Bugiani, Jolanda M Smit, Stefan P Berger, Peter H J van der Voort, Harry van Goor, Wilfred F A den Dunnen, Jan-Luuk Hillebrands
Coronavirus disease 2019 (COVID-19) is of special concern to immunocompromised individuals, including organ transplant recipients. However, the exact implications of COVID-19 for the immunocompromised host remain unclear. Existing theories regarding this matter are controversial and mainly based on clinical observations. Here, the post-mortem histopathology, immunopathology, and viral presence in various tissues of a kidney transplant recipient (KTR) with COVID-19 was compared to those of two non-transplanted patients with COVID-19 matched for age, sex, length of intensive care unit stay, and admission period in the pandemic...
January 22, 2024: Journal of Leukocyte Biology
https://read.qxmd.com/read/38234434/features-and-networks-of-the-mandible-on-computed-tomography
#40
JOURNAL ARTICLE
Tuan D Pham, Simon B Holmes, Mangala Patel, Paul Coulthard
The mandible or lower jaw is the largest and hardest bone in the human facial skeleton. Fractures of the mandible are reported to be a common facial trauma in emergency medicine and gaining insights into mandibular morphology in different facial types can be helpful for trauma treatment. Furthermore, features of the mandible play an important role in forensics and anthropology for identifying gender and individuals. Thus, discovering hidden information of the mandible can benefit interdisciplinary research...
January 2024: Royal Society Open Science
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